323  
NOUS45 KRIW 221339  
PNSRIW  
WYZ001>020-022>030-230132-  
 
PUBLIC INFORMATION STATEMENT  
NATIONAL WEATHER SERVICE RIVERTON WY  
732 AM MDT FRI MAY 22 2026  
   
..PRECIPITATION REPORTS
 
 
A STRONG SPRING LOW PRESSURE SYSTEM MADE IT THROUGH WYOMING MAY  
21ST, BRINGING WIDESPREAD, AND MUCH NEEDED, RAIN AND SNOW. SNOW  
LEVELS WERE AROUND 6000 FEET, BRINGING SNOW TO SOME LOWER ELEVATIONS  
LIKE IN NATRONA COUNTY. LISTED BELOW ARE RAIN/LIQUID EQUIVALENT  
TOTALS OF 0.1 INCHES AND GREATER.  
 
LOCATION AMOUNT ELEVATION (FT.)  
   
..WYOMING
 
 
   
..BIG HORN COUNTY
 
 
BYRON 2.9 WSW (COCO) 0.61 IN 4040  
BYRON (CWOP) 0.43 IN 4022  
LOVELL (CWOP) 0.34 IN 3964  
WILLOW CREEK 0.31 IN 4310  
HYATT HIGH 0.21 IN 5670  
GREYBULL 12.9 ENE (COCO) 0.16 IN 4169  
GREYBULL AIRPORT (ASOS) 0.12 IN 3934  
   
..FREMONT COUNTY
 
 
LANDER 7 WNW (COCO) 0.57 IN 6042  
LANDER 5.9 SSE (COCO) 0.53 IN 5556  
RIVERTON 2 W (COCO) 0.46 IN 5073  
LANDER AIRPORT (ASOS) 0.42 IN 5587  
RIVERTON CWC (AWS) 0.42 IN 5372  
LANDER 2 NNW (COCO) 0.40 IN 5352  
RASBERRY 0.40 IN 8833  
FORT WASHAKIE 3.7 SE (COCO) 0.35 IN 5548  
LANDER 9.3 S (COCO) 0.34 IN 5995  
LANDER 2 (CWOP) 0.33 IN 5278  
RIVERTON 1 (AWS) 0.33 IN 4989  
RIVERTON 1 (CWOP) 0.32 IN 4920  
LANDER 1 (CWOP) 0.32 IN 5797  
SHARPNOSE 0.29 IN 5555  
RIVERTON AIRPORT (ASOS) 0.29 IN 5443  
WIND RIVER 0.27 IN 9235  
RED CANYON RANCH NC LANDER 1 0.22 IN 5777  
ANDERSON RIDGE 0.20 IN 8120  
KINNEAR 1 (CWOP) 0.20 IN 5488  
CAMP CREEK 0.18 IN 7380  
JEFFREY CITY (CWOP) 0.18 IN 6442  
RIVERTON 2 (CWOP) 0.16 IN 4966  
CROWHEART (CWOP) 0.16 IN 6137  
RIVERTON 3 (CWOP) 0.15 IN 5390  
ELKHORN 0.11 IN 8085  
PAVILLION 5.8 E (COCO) 0.10 IN 5322  
RIVERTON 2 (AWS) 0.10 IN 4990  
   
..HOT SPRINGS COUNTY
 
 
GRASS CREEK 0.28 IN 7127  
LUCERNE (COOP) 0.23 IN 4282  
ANCHOR DAM (HADS) 0.13 IN 6250  
KIRBY (CWOP) 0.11 IN 4350  
THERMOPOLIS 33.2 W (COCO) 0.10 IN 6612  
   
..JOHNSON COUNTY
 
 
KAYCEE 14.6 W (COCO) 0.64 IN 5247  
KAYCEE 10.9 WNW (COCO) 0.39 IN 5481  
POKER CREEK 0.25 IN 6439  
BUFFALO 2 (CWOP) 0.17 IN 4370  
BUFFALO 15 W (HADS) 0.17 IN 8398  
BUFFALO 1 (CWOP) 0.14 IN 4675  
SCHOOL HOUSE 0.13 IN 8604  
KAYCEE 5.2 NNW (COCO) 0.13 IN 4917  
BUFFALO AIRPORT (ASOS) 0.12 IN 4925  
STORY 4 SE (HADS) 0.10 IN 4662  
   
..LINCOLN COUNTY
 
 
SMOOT 5 SSE (COCO) 0.52 IN 7005  
AFTON 2 (CWOP) 0.26 IN 6267  
AFTON 1 (CWOP) 0.21 IN 6257  
SNAKE RIVER (DOTAV) 0.16 IN 5698  
ALPINE 5.9 S (COCO) 0.15 IN 5932  
GENEVA 11 E (HADS) 0.14 IN 6649  
ETNA 1 (CWOP) 0.13 IN 5692  
STAR V RANCH 1 S (COCO) 0.12 IN 6204  
   
..NATRONA COUNTY
 
 
POWDER RIVER 0.1 NNE (COCO) 0.67 IN 5714  
CASPER 1.5 SW (COCO) 0.66 IN 5406  
CASPER 7.5 W (COCO) 0.63 IN 5361  
CASPER 1.5 SW (COCO) 0.58 IN 5350  
CASPER 0.7 WSW (COCO) 0.54 IN 5224  
CASPER 2 ENE (COCO) 0.52 IN 5252  
CASPER AIRPORT (ASOS) 0.51 IN 5348  
CASPER 7.1 SW (COCO) 0.50 IN 5415  
EVANSVILLE 5.4 ESE (COCO) 0.42 IN 5174  
CASPER 17.2 SW (COCO) 0.26 IN 5364  
MILLS 12.8 SSE (COCO) 0.26 IN 7940  
FALES ROCK 0.25 IN 6379  
CASPER (CWOP) 0.24 IN 5341  
BAR NUNN (CWOP) 0.11 IN 5275  
   
..PARK COUNTY
 
 
WRBB PORT NO. 1 0.50 IN 4750  
CRANDALL 0.45 IN 6640  
POWELL 3.9 ENE (COCO) 0.44 IN 4288  
RATTLESNAKE MTN 0.43 IN 8401  
GREBE 0.43 IN 7899  
EAGLE 0.40 IN 7500  
CABIN CREEK 0.30 IN 8650  
MEETEETSE 2 SE (COCO) 0.25 IN 6071  
MEETEETSE (CWOP) 0.25 IN 5749  
POWELL 2 (CWOP) 0.25 IN 4381  
DRY CREEK 0.21 IN 5520  
CODY 7.3 SW (COCO) 0.20 IN 5419  
CODY 2 WSW (COCO) 0.11 IN 5161  
CODY AIRPORT (AWOS) 0.11 IN 5089  
PAHASKA (HADS) 0.10 IN 6798  
WAPITI (CWOP) 0.10 IN 5993  
   
..SUBLETTE COUNTY
 
 
BOULDER (CWOP) 0.48 IN 7338  
BOULDER (HADS) 0.45 IN 7350  
DANIEL (HADS) 0.27 IN 7470  
HALF MOON 0.26 IN 8529  
PINEDALE 14 NW (COCO) 0.17 IN 7464  
PINEDALE 6.3 SE (COCO) 0.16 IN 7314  
HOBACK 0.12 IN 6726  
   
..SWEETWATER COUNTY
 
 
ROCK SPRINGS (CWOP) 0.24 IN 6432  
ROCK SPRINGS AIRPORT (ASOS) 0.20 IN 6759  
GREEN RIVER (COOP) 0.20 IN 6160  
   
..TETON COUNTY
 
 
MORAN 2 (CWOP) 0.55 IN 6748  
BURRO HILL 0.44 IN 7250  
ALTA (CWOP) 0.41 IN 6460  
JACKSON 1 (CWOP) 0.33 IN 6236  
COYOTE MEADOWS 0.28 IN 6830  
JACKSON 2 (CWOP) 0.24 IN 6158  
RENDEZVOUS BOWL (JHMR) 0.19 IN 9634  
B-T PORTABLE NO. 1 0.18 IN 6631  
ALTA (HADS) 0.16 IN 6430  
HOBACK (CWOP) 0.16 IN 5928  
MID MTN (JHMR) 0.15 IN 8225  
JACKSON (HADS) 0.14 IN 6240  
YNP S ENTRANCE 5 SSW (HADS) 0.14 IN 7020  
TETON PASS MP12 (DOTAV) 0.14 IN 8007  
RAYMER (JHMR) 0.13 IN 9657  
YNP S ENTRANCE (HADS) 0.12 IN 6898  
GRAND TETON 0.12 IN 6729  
JACKSON AIRPORT (AWOS) 0.11 IN 6450  
OLD FAITHFUL (HADS) 0.11 IN 7319  
MORAN 1 (CWOP) 0.10 IN 6867  
   
..WASHAKIE COUNTY
 
 
TEN SLEEP 0.3 SSW (COCO) 0.31 IN 4426  
WORLAND 9.6 N (COCO) 0.28 IN 4043  
WORLAND 2.3 NE (COCO) 0.22 IN 4107  
WORLAND (AWS) 0.22 IN 4400  
WORLAND AIRPORT (ASOS) 0.21 IN 4226  
LEIGH CREEK 0.19 IN 8202  
WORLAND (CWOP) 0.19 IN 4064  
PISTOL DRAW 0.19 IN 4520  
SPLIT ROCK CREEK 0.16 IN 6554  
WORLAND 8 SW (COCO) 0.13 IN 4136  
 
OBSERVATIONS ARE COLLECTED FROM A VARIETY OF SOURCES WITH VARYING  
EQUIPMENT AND EXPOSURES. WE THANK ALL VOLUNTEER WEATHER OBSERVERS  
FOR THEIR DEDICATION. NOT ALL DATA LISTED ARE CONSIDERED OFFICIAL.  
 

 
 
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