Riverton Forecast Office has compiled an interesting statement on the dramatic difference in temperatures due to the valley inversions over Western Wyoming on Friday.
Mother Nature Keeps Lower Elevations Frigid While Warming Mountains
Head for the Ski Slopes for warmer temperatures!Snow covered basins and valleys of central and western Wyoming remained in the deep freeze while the mountains and some adjacent foothills were relatively warm due to an extremely steep temperature inversion at the surface.
Following is a listing of maximum temperatures across western Wyoming Friday, January 4th showing the extreme differences between the very cold basins and valleys and the warmer higher elevations Note that the high temperature on Mount Coffin at almost 11,000 feet of 27 was 27 degrees higher than at Cokeville almost 5000 feet lower:
...LINCOLN COUNTY... WARMEST HIGHS... 15 E COKEVILLE (7840 FT)(SNOTEL) 100 PM JAN 4 43 F MOUNT COFFIN (10870 FT) (BTAVAL) 630 AM JAN 4 27 F COLDEST HIGHS... 4 S COKEVILLE (6185 FT)(MESOWEST) 210 PM JAN 4 0 F 1 NW AFTON (6211 FT)(MESOWEST) 200 PM JAN 4 2 F BEAR RIVER - COKEVILLE (6160 FT) (HADS) 315 PM JAN 4 5 F 6 WNW GRANGER (6350 FT)(MESOWEST) 250 PM JAN 4 6 F THAYNE (5928 FT)(APRSWXNET) 316 PM JAN 4 8 F ETNA (5823 FT)(APRSWXNET) 424 PM JAN 4 8 F 6 ESE FOSSIL BUTTE NATIONAL MONUMENT 245 PM JAN 4 10 F 4 E OPAL (6584 FT)(MESOWEST) 305 PM JAN 4 10 F 9 E TURNERVILLE (6650 FT)(MESOWEST) 1200 PM JAN 4 19 F KEMMERER AIRPORT (7285 FT)(AWOS) 100 PM JAN 4 21 F
...PARK COUNTY... WARMEST HIGHS... 8 N MEETEETSE (5958 FT)(WYDOT) 1216 PM JAN 4 51 F BUFFALO BILL RESERVOIR (5357 FT)(HADS) 245 PM JAN 4 49 F MEETEETSE (5797 FT)(APRSWXNET) 210 PM JAN 4 46 F 10 WNW CODY (8401 FT)(RAWS) 1040 AM JAN 4 43 F 2 W CODY (5049 FT)(APRSWXNET) 1126 AM JAN 4 40 F PAHASKA (6840 FT)(HADS) 100 PM JAN 4 38 F 3 E PAHASKA (7500 FT)(RAWS) 1257 PM JAN 4 37 F CODY AIRPORT (5100 FT)(AWOS) 455 PM JAN 4 36 F COLDEST HIGHS... 1 W POWELL (4462 FT)(APRSWXNET) 359 PM JAN 4 27 F CLARK (4670 FT)(MESOWEST) 300 PM JAN 4 29 F
...TETON COUNTY... WARMEST HIGHS... 16 E MORAN JUNCTION (9184 FT)(MESOWEST) 100 PM JAN 4 35 F TOGWOTEE PASS (9850 FT)(SNOTEL) 100 PM JAN 4 35 F COLDEST HIGHS... RAFTER J RANCH (6073 FT)(APRSWXNET) 353 PM JAN 4 5 F JACKSON (6247 FT)(APRSWXNET) 317 PM JAN 4 6 F JACKSON AIRPORT (6445 FT) (AWOS) 300 PM JAN 4 7 F 2 WNW TETON VILLAGE (8179 FT)(MESOWEST) 345 PM JAN 4 7 F 4 NNE KELLY (6910 FT)(AIRNOW) 300 PM JAN 4 8 F 2 ENE WILSON (6184 FT)(APRSWXNET) 338 PM JAN 4 12 F 4 N MOOSE (6730 FT)(RAWS) 158 PM JAN 4 13 F MORAN JUNCTION (6749 FT)(APRSWXNET) 319 PM JAN 4 15 F 2 WNW TETON VILLAGE (8179 FT)(MESOWEST) 130 PM JAN 4 20 F 4 W WILSON (8428 FT)(WYDOT) 920 AM JAN 4 22 F
...SWEETWATER COUNTY... WARMEST HIGH... 15 SE ROCK SPRINGS (7550 FT) (RAWS) 1244 PM JAN 4 37 F COLDEST HIGHS... 14 NE GRANGER (6454 FT)(AIRNOW) 400 PM JAN 4 4 F 3 W WAMSUTTER (6729 FT)(AIRNOW) 100 PM JAN 4 4 F 9 WNW GREEN RIVER (6290 FT)(MESOWEST) 400 PM JAN 4 11 F 10 E WAMSUTTER (7062 FT)(MESOWEST) 300 PM JAN 4 12 F ROCK SPRINGS AIRPORT (6760 FT)(ASOS) 454 PM JAN 4 15 F 3 ENE GRANGER (6248 FT)(MESOWEST) 400 PM JAN 4 15 F GREEN RIVER (6091 FT)(AWS) 325 PM JAN 4 16 F
NOTE: OBSERVATIONS ARE COLLECTED FROM A VARIETY OF SOURCES WITH VARYING EQUIPMENT AND EXPOSURES. NOT ALL DATA LISTED IS CONSIDERED OFFICIAL. THE NATIONAL WEATHER SERVICE THANKS ITS PRIVATE AND PUBLIC PARTNERS FOR PROVIDING US WITH THIS DATA. AIRNOW - AIR QUALITY SENSORS APRSWXNET - AUTOMATIC POSITION REPORTING SYSTEM WX NETWORK (PRIVATE) ASOS - AUTOMATED SURFACE OBSERVING SYSTEM (AIRPORTS) AWS - AUTOMATED WEATHER SOURCE (PRIVATE) AWOS - AUTOMATED WEATHER OBSERVING SYSTEM (AIRPORTS) BTAVAL - BRIDGER TETON AVALANCHE SENSORS RAWS - REMOTE AUTOMATED WEATHER SYSTEM SNOTEL - REMOTE SENSING SITES IN HIGH MOUNTAIN WATERSHEDS WYDOT - WYOMING DEPARTMENT OF TRANSPORTATION
The Friday morning balloon sounding from the Riverton Forecast Office clearly shows the cold air near the ground with warm air aloft.
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