# taken from 2019 SWOB-XML User GuidePage on datamart at # https://dd.weather.gc.ca/observations/doc/SWOB-ML_Product_User_Guide_V8.9_e.pdf code. observation type: abbrev: description 0. Manned Observation: nowx: Cloud development not observed or not observable 1. Manned Observation: nowx: Clouds generally dissolving or becoming less developed. (Characteristic change of the state of sky during the past hour) 2. Manned Observation: nowx: State of sky on the whole unchanged. (Characteristic change of the state of sky during the past hour) 3. Manned Observation: nowx: Clouds generally forming or developing. (Characteristic change of the state of sky during the past hour) 4. Manned Observation: fu: Visibility reduced by smoke e.g. veldt or forest fires industrial smoke or volcanic ashes 5. Manned Observation: hz: Haze 6. Manned Observation: du: Widespread dust in suspension in the air not raised by wind at or near the station at the time of observation 7. Manned Observation: du: Dust or sand raised by wind at or near the station at the time of observation but no well-developed dust whirl(s) or sand whirl(s) and no duststorm or sandstorm seen; or in the case of sea stations and coastal stations blowing spray at the station 8. Manned Observation: du: Well-developed dust whirl(s) or sand whirl(s) seen at or near the station during the preceding hour or at the time of observation but no duststorm or sandstorm. 9. Manned Observation: du: Duststorm or sandstorm within sight at the time of observation or at the station during the preceding hour 10. Manned Observation: br-: Mist 11. Manned Observation: br-: Shallow fog or ice fog patches at the station whether on land or sea not deeper than about 2 metres on land or 10 metres at sea 12. Manned Observation: br-: Shallow fog or ice fog more or less continuous at the station whether on land or sea not deeper than about 2 metres on land or 10 metres at sea 13. Manned Observation: lt: Lightning visible no thunder heard 14. Manned Observation: pcpn near: Precipitation within sight not reaching the ground or the surface of the sea 15. Manned Observation: pcpn near: Precipitation within sight reaching the ground or the surface of the sea but distant i.e. estimated to be more than 5 km 16. Manned Observation: pcpn near: Precipitation within sight reaching the ground or the surface of the sea near to but not at the station 17. Manned Observation: ts: Thunderstorm but no precipitation at the time of observation 18. Manned Observation: sq: Squalls (at or within sight of the station during the preceding hour or at the time of observation) 19. Manned Observation: fc: Funnel cloud(s) [Tornado cloud or water-spout] (at or within sight of the station during the preceding hour or at the time of observation) 20. Manned Observation: dz: Drizzle (not freezing) or snow grains (not falling as shower(s)) 21. Manned Observation: rn: Rain (not freezing) (not falling as shower(s)) 22. Manned Observation: sn: Snow not falling as shower(s)) 23. Manned Observation: r&s or ip: Rain and snow or ice pellets (not falling as shower(s)) 24. Manned Observation: fr: Freezing drizzle or freezing rain (not falling as shower(s)) 25. Manned Observation: rw: Shower(s) of rain 26. Manned Observation: sw or sw/rw: Shower(s) of snow or of rain and snow 27. Manned Observation: gr or gs: Shower(s) of hail [hail small hail snow pellets] or of rain and hail [hail small hail snow pellets] 28. Manned Observation: br: Fog or ice fog 29. Manned Observation: ts: Thunderstorm (with or without precipitation) 30. Manned Observation: du: Slight or moderate duststorm or sandstorm has decreased during the preceding hour 31. Manned Observation: du: Slight or moderate duststorm or sandstorm - no appreciable change during the preceding hour 32. Manned Observation: du: Slight or moderate duststorm or sandstorm has begun or has increased during the preceding hour 33. Manned Observation: du+: Severe duststorm or sandstorm has decreased during the preceding hour 34. Manned Observation: du+: Severe duststorm or sandstorm - no appreciable change during the preceding hour 35. Manned Observation: du+: Severe duststorm or sandstorm has begun or has increased during the preceding hour 36. Manned Observation: ds: Slight or moderate drifting snow - generally low (below eye level) 37. Manned Observation: ds+: Heavy drifting snow - generally low (below eye level) 38. Manned Observation: bs: Slight or moderate blowing snow - generally high (above eye level) 39. Manned Observation: bs+: Heavy blowing snow - generally high (above eye level) 40. Manned Observation: br-: Fog or ice fog at a distance at the time of observation but not at the station during the preceding hour the fog or ice fog extending to a level above that of the observer 41. Manned Observation: br-: Fog or ice fog in patches 42. Manned Observation: br-: Fog or ice fog sky visible - has become thinner during the preceding hour 43. Manned Observation: br: Fog or ice fog sky invisible - has become thinner during the preceding hour 44. Manned Observation: br-: Fog or ice fog sky visible - no appreciable change during the preceding hour 45. Manned Observation: br: Fog or ice fog sky invisible - no appreciable change during the preceding hour 46. Manned Observation: br-: Fog or ice fog sky visible - has begun or has become thicker during the preceding hour 47. Manned Observation: br: Fog or ice fog sky invisible - has begun or has become thicker during the preceding hour 48. Manned Observation: br-: Fog depositing rime sky visible 49. Manned Observation: br: Fog depositing rime sky invisible 50. Manned Observation: dz-: Very light drizzle 51. Manned Observation: dz-: Light drizzle (not freezing continuous) 52. Manned Observation: dz: Moderate drizzle (not freezing continuous) 53. Manned Observation: dz+: Heavy drizzle (not freezing continuous) 54. Manned Observation: dz-: Light drizzle (not freezing intermittent) 55. Manned Observation: dz: Moderate drizzle (not freezing intermittent) 56. Manned Observation: dz+: Heavy drizzle (not freezing intermittent) 57. Manned Observation: fzdz-: Very light freezing drizzle 58. Manned Observation: fzdz-: Light freezing drizzle 59. Manned Observation: fzdz: Moderate freezing drizzle 60. Manned Observation: fzdz+: Heavy freezing drizzle 61. Manned Observation: fzdz: Moderate or heavy freezing drizzle 62. Manned Observation: rn-dz-: Light drizzle and rain 63. Manned Observation: rndz: Moderate or heavy drizzle and rain 64. Manned Observation: rn-: Very light rain 65. Manned Observation: rn-: Light rain (not freezing continuous) 66. Manned Observation: rn: Moderate rain (not freezing continuous) 67. Manned Observation: rn+: Heavy rain (not freezing continuous) 68. Manned Observation: rn-: Light rain (not freezing intermittent) 69. Manned Observation: rn: Moderate rain (not freezing intermittent) 70. Manned Observation: rn+: Heavy rain (not freezing intermittent) 71. Manned Observation: fzrn-: Very light freezing rain 72. Manned Observation: fzrn-: Light freezing rain 73. Manned Observation: fzrn: Moderate freezing rain 74. Manned Observation: fzrn+: Heavy freezing rain 75. Manned Observation: fzrn: Moderate or heavy freezing rain 76. Manned Observation: rn-sn-: Rain or drizzle and snow slight 77. Manned Observation: rnsn: Rain or drizzle and snow moderate or heavy 78. Manned Observation: sn-: Very light snow 79. Manned Observation: sn-: Light snow (continuous) 80. Manned Observation: sn: Moderate snow (continuous) 81. Manned Observation: sn+: Heavy snow (continuous) 82. Manned Observation: sn-: Light snow (intermittent) 83. Manned Observation: sn: Moderate snow (intermittent) 84. Manned Observation: sn+: Heavy snow (intermittent) 85. Manned Observation: ic: Ice crystals 86. Manned Observation: sg: Snow grains (with or without fog) 87. Manned Observation: sg-: Very light snow grains 88. Manned Observation: sg-: Light snow grains 89. Manned Observation: sg: Moderate snow grains 90. Manned Observation: sg+: Heavy snow grains 91. Manned Observation: ic: Isolated star-like snow crystals (with or without fog) 92. Manned Observation: ip: Ice pellets 93. Manned Observation: ip-: Very light ice pellets 94. Manned Observation: ip-: Light ice pellets 95. Manned Observation: ip: Moderate ice pellets 96. Manned Observation: ip+: Heavy ice pellets 97. Manned Observation: rw-: Very light rain showers 98. Manned Observation: rw-: Light rain showers 99. Manned Observation: rw: Moderate rain showers 100. Manned Observation: rw+: Heavy rain showers 101. Manned Observation: rw: Moderate or heavy rain showers 102. Manned Observation: rwsw: Light showers of rain and snow mixed 103. Manned Observation: rwsw: Moderate or heavy showers of rain and snow mixed 104. Manned Observation: sw-: Very light snow showers 105. Manned Observation: sw-: Light snow showers 106. Manned Observation: sw: Moderate snow showers 107. Manned Observation: sw+: Heavy snow showers 108. Manned Observation: sw: Moderate or heavy snow showers 109. Manned Observation: spw-: Light showers of snow pellets or small hail with or without rain or rain and snow mixed 110. Manned Observation: spw: Moderate or heavy showers of snow pellets or small hail with or without rain or rain and snow mixed 111. Manned Observation: sg-: Very light hail 112. Manned Observation: sg-: Light showers of hail with or without rain or rain and snow mixed not associated with thunder 113. Manned Observation: sg: Moderate hail 114. Manned Observation: sg+: Heavy hail 115. Manned Observation: swg: Moderate or heavy showers of hail with or without rain or rain and snow mixed not associated with thunder 116. Manned Observation: rn- trw pasthr: Light rain at time of observation - Thunderstorm during the preceding hour but not at time of observation 117. Manned Observation: rn trw pasthr: Moderate or heavy rain at time of observation - Thunderstorm during the preceding hour but not at time of observation 118. Manned Observation: sn- or sg- trw pasthr: Light snow or rain and snow mixed or hail [hail small hail snow pellets] at time of observation - Thunderstorm during the preceding hour but not at time of observation 119. Manned Observation: sn or sg- trw pasthr: Moderate or heavy snow or rain and snow mixed or hail [hail small hail snow pellets] at time of observation - Thunderstorm during the preceding hour but not at time of observation 120. Manned Observation: trw or tsw: Thunderstorm slight or moderate without hail [hail small hail snow pellets] but with rain and/or snow at time of observation - Thunderstorm at time of observation 121. Manned Observation: trw sg: Thunderstorm slight or moderate with hail [hail small hail snow pellets] at time of observation - Thunderstorm at time 122. Manned Observation: trw+: Thunderstorm heavy without hail [hail small hail snow pellets] but with rain and/or snow at time of observation - Thunderstorm at time of observation 123. Manned Observation: trw du: Thunderstorm combined with duststorm or sandstorm at time of observation - Thunderstorm at time of observation 124. Manned Observation: trw+ sg: Thunderstorm heavy with hail [hail small hail snow pellets] at time of observation - Thunderstorm at time of observation 125. Manned Observation: nowx: No present or recent weather 126. Manned Observation: du: Slight or moderate blowing dust 127. Manned Observation: du+: Heavy blowing dust 128. Manned Observation: bs: Slight or moderate blowing snow 129. Manned Observation: du: Slight or moderate blowing sand 130. Manned Observation: du+: Heavy blowing sand 131. Manned Observation: drdu: Drifting sand 132. Manned Observation: drs: Drifting snow 133. Manned Observation: drdu: Drifting dust 134. Manned Observation: fc: Funnel cloud(s) 135. Manned Observation: fc: Tornado 136. Manned Observation: fc: Waterspout 137. Manned Observation: fc: Tornado or waterspout 138. Manned Observation: br: Fog (prevailing visibility < 5/8 miles) 139. Manned Observation: fzbr: Freezing fog (prevailing visibility < 5/8 miles temperatures < 0 °C and ≥ -30 °C) 140. Manned Observation: br-: Shallow Fog 141. Manned Observation: if: Ice Fog 142. Manned Observation: br-: Patchy fog 143. Manned Observation: br-: Fog covering part of the aerodrome 144. Manned Observation: fu: Smoke 145. Manned Observation: trw: Thunderstorm 146. Manned Observation: trw+: Heavy Thunderstorm 147. Manned Observation: po: Well-developed dust whirl(s) or sand whirl(s) but no duststorm or sandstorm 148. Manned Observation: sg-: Very light snow pellet showers or small hail (i.e. diameter of largest stone < 5 mm) 149. Manned Observation: sg-: Light snow pellet showers or small hail (i.e. diameter of largest stone < 5 mm) 150. Manned Observation: sg: Moderate snow pellet showers or small hail (i.e. diameter of largest stone < 5 mm) 151. Manned Observation: sg+: Heavy snow pellet showers or small hail (i.e. diameter of largest stone < 5 mm) 152. Manned Observation: ipw-: Very light ice pellet showers 153. Manned Observation: ipw-: Light ice pellet showers 154. Manned Observation: ipw: Moderate ice pellet showers 155. Manned Observation: ipw+: Heavy ice pellet showers 156. Manned Observation: du: Slight or moderate sandstorm 157. Manned Observation: du+: Severe sandstorm 158. Manned Observation: du: Slight or moderate duststorm 159. Manned Observation: du+: Severe duststorm 160. Manned Observation: va: Volcanic ash 161. Manned Observation: bldu near: Blowing dust in the vicinity 162. Manned Observation: bldu near: Blowing sand in the vicinity 163. Manned Observation: blsn near: Blowing snow in the vicinity 164. Manned Observation: bldu near: Duststorm in the vicinity 165. Manned Observation: br near: Fog in the vicinity 166. Manned Observation: po near: Dust/sand whirls in the vicinity 167. Manned Observation: rw near: Showers in the vicinity 168. Manned Observation: bldu near: Sandstorm in the vicinity 169. Manned Observation: va near: Volcanic ash in the vicinity 170. Manned Observation: fc near: Funnel cloud in the vicinity 171. Manned Observation: blsn recent: Recent blowing snow 172. Manned Observation: bldu recent: Recent duststorm 173. Manned Observation: fc recent: Recent Funnel Cloud Tornado Waterspout 174. Manned Observation: fzd recent: Recent freezing drizzle 175. Manned Observation: fzr recent: Recent freezing rain 176. Manned Observation: sg recent: Recent hail 177. Manned Observation: sg recent: Recent snow pellets 178. Manned Observation: ip recent: Recent ice pellets 179. Manned Observation: du recent: Recent sandstorm 180. Manned Observation: va recent: Recent volanic ash 181. Manned Observation: dz recent: Recent drizzle 182. Manned Observation: sn recent: Recent snow 183. Manned Observation: rn recent: Recent rain 184. Manned Observation: trw recent: Recent thunderstorm 300. Automated Station Observation: nowx: No significant weather observed 301. Automated Station Observation: nowx: Clouds generally dissolving or becoming less developed during the past hour 302. Automated Station Observation: nowx: State of sky on the whole unchanged during the past hour 303. Automated Station Observation: nowx: Clouds generally forming or developing during the past hour 304. Automated Station Observation: hz: Haze or smoke or dust in suspension in the air visibility equal to or greater than 1 km 305. Automated Station Observation: hz+: Haze or smoke or dust in suspension in the air visibility less than 1 km 310. Automated Station Observation: br: Mist 311. Automated Station Observation: ic: Diamond dust 312. Automated Station Observation: ltng distant: Distant lightning 318. Automated Station Observation: sq: Squalls 320. Automated Station Observation: br: Fog 321. Automated Station Observation: pcpn recent: PRECIPITATION at the station during the preceding hour but not at the time of observation 322. Automated Station Observation: dz or sg: Drizzle (not freezing) or snow grains 323. Automated Station Observation: rn: Rain (not freezing) 324. Automated Station Observation: sn: Snow 325. Automated Station Observation: fzdr or fzrn: Freezing drizzle or freezing rain 326. Automated Station Observation: trw: Thunderstorm (with or without precipitation) 327. Automated Station Observation: bldu: BLOWING OR DRIFTING SNOW OR SAND 328. Automated Station Observation: bldu: Blowing or drifting snow or sand visibility equal to or greater than 1 km 329. Automated Station Observation: bldu: Blowing or drifting snow or sand visibility less than 1 km 330. Automated Station Observation: br: FOG 331. Automated Station Observation: br-: Fog or ice fog in patches 332. Automated Station Observation: br: Fog or ice fog has become thinner during the past hour 333. Automated Station Observation: br: Fog or ice fog no appreciable change during the past hour 334. Automated Station Observation: br: Fog or ice fog has begun or has become thicker during the past hour 335. Automated Station Observation: br: Fog depositing rime. Freezing Fog for Nav Canada stations 340. Automated Station Observation: pcpn: PRECIPITATION 341. Automated Station Observation: pcpn: Light or moderate precipitation 342. Automated Station Observation: pcpn+: Heavy precipitation 343. Automated Station Observation: rn: Light or moderate liquid precipitation 344. Automated Station Observation: rn+: Heavy liquid precipitation 345. Automated Station Observation: sn or gr: Light or moderate solid precipitation 346. Automated Station Observation: sn+ or gr+: Heavy solid precipitation 347. Automated Station Observation: fzrn: Light or moderate freezing precipitation 348. Automated Station Observation: fzrn+: Heavy freezing precipitation 350. Automated Station Observation: dz: DRIZZLE 351. Automated Station Observation: dz-: Very light drizzle 352. Automated Station Observation: dz-: Light drizzle (not freezing) 353. Automated Station Observation: dz: Moderate drizzle (not freezing) 354. Automated Station Observation: dz+: Heavy drizzle (not freezing) 355. Automated Station Observation: fzdz-: Very light freezing drizzle 356. Automated Station Observation: fzdz-: Light freezing drizzle 357. Automated Station Observation: fzdz: Moderate freezing drizzle 358. Automated Station Observation: fzdz+: Heavy freezing drizzle 359. Automated Station Observation: rn-: Light drizzle and rain 360. Automated Station Observation: rn: Moderate or heavy drizzle and rain 362. Automated Station Observation: rn: RAIN 363. Automated Station Observation: rn-: Very light rain 364. Automated Station Observation: rn-: Light rain (not freezing) 365. Automated Station Observation: rn: Moderate rain (not freezing) 366. Automated Station Observation: rn+: Heavy rain (not freezing) 367. Automated Station Observation: fzrn-: Very light freezing rain 368. Automated Station Observation: fzrn-: Light freezing rain 369. Automated Station Observation: fzrn: Moderate freezing rain 370. Automated Station Observation: fzrn+: Heavy freezing rain 371. Automated Station Observation: rn-sn-: Light rain (or drizzle) and snow 372. Automated Station Observation: rnsn: Moderate or heavy rain (or drizzle) and snow 374. Automated Station Observation: sn: SNOW 375. Automated Station Observation: sn-: Very light snow 376. Automated Station Observation: sn-: Light snow 377. Automated Station Observation: sn: Moderate snow 378. Automated Station Observation: sn+: Heavy snow 379. Automated Station Observation: ip-: Light ice pellets 380. Automated Station Observation: ip: Moderate ice pellets 381. Automated Station Observation: ip+: Heavy ice pellets 382. Automated Station Observation: sg: Snow grains 383. Automated Station Observation: ic: Ice crystals 385. Automated Station Observation: rw: SHOWERS or INTERMITTENT PRECIPITATION 386. Automated Station Observation: rw-: Light rain showers or light intermittent rain 387. Automated Station Observation: rw: Moderate rain showers or moderate intermittent rain 388. Automated Station Observation: rw+: Heavy rain showers or heavy intermittent rain 389. Automated Station Observation: rw+: Violent rain showers or violent intermittent rain 390. Automated Station Observation: sw-: Light snow showers or light intermittent snow 391. Automated Station Observation: sw: Moderate snow showers or moderate intermittent snow 392. Automated Station Observation: sw+: Heavy snow showers or heavy intermittent snow 394. Automated Station Observation: gr: Hail 395. Automated Station Observation: gr-: Very light hail 396. Automated Station Observation: gr-: Light hail 397. Automated Station Observation: gr: Moderate hail 398. Automated Station Observation: gr+: Heavy hail 399. Automated Station Observation: trw: THUNDERSTORM 400. Automated Station Observation: ts: Thunderstorm slight or moderate with no precipitation 401. Automated Station Observation: trw: Thunderstorm slight or moderate with rain showers and/or snow showers 402. Automated Station Observation: trw gr: Thunderstorm slight or moderate with hail 403. Automated Station Observation: ts+: Thunderstorm heavy with no precipitation 404. Automated Station Observation: trw+ or tsw+: Thunderstorm heavy with rain showers and/or snow showers 405. Automated Station Observation: trw+ sg: Thunderstorm heavy with hail 408. Automated Station Observation: fc: Tornado 409. Automated Station Observation: nowx: No precipitation 410. Automated Station Observation: pcpn-: Very light unclassified precipitation 411. Automated Station Observation: pcpn-: Light unclassified precipitation 412. Automated Station Observation: pcpn: Moderate unclassified precipitation 413. Automated Station Observation: pcpn+: Heavy unclassified precipitation 414. Automated Station Observation: error: Error in present weather determination none could be reported 415. Automated Station Observation: sn-: Light frozen precipitation 416. Automated Station Observation: sn: Moderate frozen precipitation 417. Automated Station Observation: sn+: Heavy frozen precipitation 418. Automated Station Observation: other: Other 504. Manned or Automated Station Observation: va: Volcanic ash suspended In the air aloft 506. Manned or Automated Station Observation: du: Thick dust haze visibility less than 1 km 507. Manned or Automated Station Observation: bl spray: Blowing spray at the station 508. Manned or Automated Station Observation: drdu: Drifting dust (sand) 509. Manned or Automated Station Observation: bldu in distance: Wall of dust or sand in distance (like haboob) 510. Manned or Automated Station Observation: sn hz: Snow haze 511. Manned or Automated Station Observation: whiteout: Whiteout 513. Manned or Automated Station Observation: ts: Lightning cloud to surface 517. Manned or Automated Station Observation: ts: Dry thunderstorm 519. Manned or Automated Station Observation: fc: Tornado cloud (destructive) at or within sight of the station during preceding hour or at the time of observation 520. Manned or Automated Station Observation: va: Deposition of volcanic ash 521. Manned or Automated Station Observation: va: Deposition of dust or sand 522. Manned or Automated Station Observation: dew: Deposition of dew 523. Manned or Automated Station Observation: sn: Deposition of wet snow 524. Manned or Automated Station Observation: rime: Deposition of soft rime 525. Manned or Automated Station Observation: rime: Deposition of hard rime 526. Manned or Automated Station Observation: rime: Deposition of hoarfrost 527. Manned or Automated Station Observation: rime: Deposition of glaze 528. Manned or Automated Station Observation: ice: Deposition of ice crust (ice slick) 530. Manned or Automated Station Observation: bldu: Duststorm or sandstorm with temperature below 0 degrees C 539. Manned or Automated Station Observation: blsn: Blowing snow impossible to determine whether snow is falling or not 541. Manned or Automated Station Observation: br: Fog on sea 542. Manned or Automated Station Observation: br: Fog in valleys 543. Manned or Automated Station Observation: br: Arctic or Antarctic sea smoke 544. Manned or Automated Station Observation: br: Steam fog (sea lake or river) 545. Manned or Automated Station Observation: br: Steam fog (land) 546. Manned or Automated Station Observation: br: Fog over ice or snow cover 547. Manned or Automated Station Observation: br+: Dense fog visibility 60-90 m 548. Manned or Automated Station Observation: br+: Dense fog visibility 30-60 m 549. Manned or Automated Station Observation: br+: Dense fog visibility less than 30 m 550. Manned or Automated Station Observation: dz: Drizzle rate of fall less than 0.10 mm/h 551. Manned or Automated Station Observation: dz: Drizzle rate of fall 0.10-0.19 mm/h 552. Manned or Automated Station Observation: dz: Drizzle rate of fall 0.20-0.39 mm/h 553. Manned or Automated Station Observation: dz: Drizzle rate of fall 0.40-0.79 mm/h 554. Manned or Automated Station Observation: dz: Drizzle rate of fall 0.80-1.59 mm/h 555. Manned or Automated Station Observation: dz+: Drizzle rate of fall 1.60-3.19 mm/h 556. Manned or Automated Station Observation: dz+: Drizzle rate of fall 3.20-6.39 mm/h 557. Manned or Automated Station Observation: dz+: Drizzle rate of fall 6.4 mm/h or more 559. Manned or Automated Station Observation: dzsn: Drizzle and snow 560. Manned or Automated Station Observation: rn-: Rain rate of fall less than 1.0 mm/h 561. Manned or Automated Station Observation: rn-: Rain rate of fall 1.-1.9 mm/h 562. Manned or Automated Station Observation: rn: Rain rate of fall 2.-3.9 mm/h 563. Manned or Automated Station Observation: rn: Rain rate of fall 4.-7.9 mm/h 565. Manned or Automated Station Observation: rn+: Rain rate of fall 16.0-31.9 mm/h 566. Manned or Automated Station Observation: rn+: Rain rate of fall 32.0-63.9 mm/h 567. Manned or Automated Station Observation: rn+: Rain rate of fall 64.0 mm/h or more 570. Manned or Automated Station Observation: sn-: Snow rate of fall less than 1.0 cm/h 571. Manned or Automated Station Observation: sn-: Snow rate of fall 1.0-1.9 cm/h 572. Manned or Automated Station Observation: sn: Snow rate of fall 2.0-3.9 cm/h 573. Manned or Automated Station Observation: sn+Snow rate of fall 4.0-7.9 cm/h 574. Manned or Automated Station Observation: sn+: Snow rate of fall 8.0-15.9 cm/h 575. Manned or Automated Station Observation: sn+: Snow rate of fall 16.0-31.9 cm/h 576. Manned or Automated Station Observation: sn+: Snow rate of fall 32.0-63.9 cm/h 577. Manned or Automated Station Observation: sn+: Snow rate of fall 64.0 cm/h or more 578. Manned or Automated Station Observation: sn: Snow or Ice crystal precipitation from a clear sky 579. Manned or Automated Station Observation: wet sn: Wet snow freezing on contact 580. Manned or Automated Station Observation: rn: Precipitation of rain 581. Manned or Automated Station Observation: fzrn: Precipitation of rain freezing 582. Manned or Automated Station Observation: rnsn: Precipitation of rain and snow mixed. 583. Manned or Automated Station Observation: sn: Precipitation of snow 584. Manned or Automated Station Observation: sg or ipw: Precipitation of snow pellets or small hall 585. Manned or Automated Station Observation: rw sg or ipw: Precipitation of snow pellets or small hail with rain 586. Manned or Automated Station Observation: rwsw: Precipitation of snow pellets or small hail with rain and snow mixed 587. Manned or Automated Station Observation: sw: Precipitation of snow pellets or small hail with snow 588. Manned or Automated Station Observation: gr: Precipitation of hail 589. Manned or Automated Station Observation: rw sg: Precipitation of hail with rain 590. Manned or Automated Station Observation: rwsw grPrecipitation of hall with rain and snow mixed 591. Manned or Automated Station Observation: sw gr: Precipitation of hail with snow 592. Manned or Automated Station Observation: rw over sea: Shower(s) or thunderstorm over sea 593. Manned or Automated Station Observation: rw over mnts: Shower(s) or thunderstorm over mountains 809. Manned or Automated Station Observation: msgn: No observation data not available present and past weather omitted 810. Manned or Automated Station Observation: msgn: Present and past weather missing but expected 812. Automated Station Observation: rw gr: Rain hail detected 813. Automated Station Observation: rnsn: Snow rain detected 814. Automated Station Observation: sn gr: Snow hail detected 815. Automated Station Observation: rnsn gr: Snow rain hail detected 816. Automated Station Observation: pcpn: Unclassified precipitation detected 817. Automated Station Observation: rn: Rain unclassified precipitation detected 818. Automated Station Observation: gr: Hail unclassified precipitation detected 819. Automated Station Observation: rn: Rain hail unclassified precipitation detected 820. Automated Station Observation: sn: Snow unclassified precipitation detected 821. Automated Station Observation: rn sn: Snow rain unclassified precipitation detected 822. Automated Station Observation: sw gr: Snow hail unclassified precipitation detected 823. Automated Station Observation: rw sw gr: Snow hail rain unclassified precipitation detected 824. Automated Station Observation: sg-: Light snow grains 825. Automated Station Observation: sg: Moderate snow grains 826. Automated Station Observation: sg+: Heavy snow grains 827. Automated Station Observation: gr-: Snow pellets 828. Automated Station Observation: trw near: Thunderstorm in vicinity 829. Automated Station Observation: du: Sand 830. Automated Station Observation: du: Dust 831. Automated Station Observation: hz: Haze 832. Automated Station Observation: fu: Smoke 833. Automated Station Observation: va: Volcanic ash 834. Automated Station Observation: blsn: Blowing snow 835. Automated Station Observation: bldu: Blowing sand 836. Automated Station Observation: fz pcpn: Light unclassified freezing precipitation 837. Automated Station Observation: fz pcpn: Moderate unclassified freezing precipitation 838. Automated Station Observation: fz pcpn+: Heavy unclassified freezing precipitation 839. Automated Station Observation: nowx: No precipitation detected 840. Manned or Automated Station Observation: trw-: Thunderstorm with rain (light) 841. Manned or Automated Station Observation: rn-: Precipitation of rain and drizzle (light) 842. Manned or Automated Station Observation: rn: Precipitation of rain and drizzle (moderate) 843. Manned or Automated Station Observation: rn+: Precipitation of rain and drizzle (heavy) 845. Manned or Automated Station Observation: rn+: Heavy drizzle and rain 846. Manned or Automated Station Observation: dz: Drizzle and mist 847. Manned Observation: Sand 848. Manned or Automated Station Observation: rw-: Light showers 849. Manned or Automated Station Observation: hz: Light haze 850. Manned or Automated Station Observation: trw-: Light Thunderstorm 851. Manned or Automated Station Observation: trw-: Thunderstorm with drizzle light 852. Manned or Automated Station Observation: trw-: Thunderstorm with drizzle moderate 853. Manned or Automated Station Observation: trw: Thunderstorm with drizzle heavy 854. Manned or Automated Station Observation: trw: Thunderstorm with mist in vicinity 855. Manned ot Automated Station Observation: trw: Thunderstorm with drizzle in vicinity 856. Manned or Automated Station Observation: trw: Thunderstorm with rain in vicinity 857. Manned or Automated Station Observation: trw: Thunderstorm with showers in vicinity 858. Manned or Automated Station Observation: rn near: Rain in vicinity 859. Manned or Automated Station Observation: rw-: Showers with rain and drizzle light 860. Manned or Automated Station Observation: rw: Showers with rain and drizzle moderate 861. Manned or Automated Station Observation: rw+: Showers with rain and drizzle heavy 862. Manned or Automated Station Observation: rwsw-: Showers with rain and snow light 863. Manned or Automated Station Observation: rwsw: Showers with rain and snow moderate 864. Manned or Automated Station Observation: rwsw+: Showers with rain and snow heavy 865. Manned or Automated Station Observation: br-: Patches of mist 866. Manned or Automated Station Observation: bldu: Blowing widespread dust 867. Manned or Automated Station Observation: br-: Shallow fog 868. Manned or Automated Station Observation: br-: Partial fog 869. Manned or Automated Station Observation: sn near: Snow in vicinity 870. Manned or Automated Station Observation: rw near: Rain showers in vicinity 871. Manned or Automated Station Observatoin: rnsn-: Light rain and snow 872. Manned or Automated Station Observation: rnsn: Rain and snow 873. Manned or Automated Station Observation: dz recent: Recent drizzle 874. Manned or Automated Station Observation: rn recent: Recent rain 875. Manned or Automated Station Observation: sn recent: Recent snow