


Public Information Statement
Issued by NWS Riverton, WY
Issued by NWS Riverton, WY
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559 NOUS45 KRIW 291743 PNSRIW WYZ001>020-022>030-300527- Public Information Statement National Weather Service Riverton WY 1127 AM MDT Fri Aug 29 2025 ...Rainfall Totals since Monday morning, August 25th... Monsoonal moisture brought significant rainfall to much of th region over the last 4 days. The wettest days were Tuesday through Thursday, where some locations saw ponding of water and even some minor flooding as a result of the heavy rain. Below is a selection of precipitation reports over 0.1 inches since Monday. ...PRECIPITATION REPORTS... Location Amount Elevation (ft.) ...Big Horn County... Greybull 30 E 0.32 in 8897 ...Fremont County... South Pass City 8 W 0.84 in 8120 Riverton 2.2 WSW 0.73 in 5033 Kinnear 0.68 in 5488 RIVERTON 0.66 in 4920 Dubois 19 WSW 0.57 in 8833 RED CANYON RANCH NC LANDER 1 0.56 in 5777 Muddy Gap 7 SW 0.54 in 7379 Burroughs Creek 0.50 in 8750 Fort Washakie 10 W 0.50 in 9234 Lander 9.3 S 0.49 in 5995 Dubois 0.48 in 6955 Riverton - CWC 0.44 in 5372 1 W Riverton 0.42 in 4989 Lander 6 SW 0.41 in 6088 Lander 9 SSE 0.38 in 5818 Lander 7WNW 0.38 in 6042 Lander 5.1 SW 0.38 in 5980 Kinnear 0.37 in 5413 Riverton Airport 0.37 in 5509 Elkhorn 0.34 in 8084 5 ESE Dubois 0.33 in Lander 4 WSW 0.33 in 5768 Fort Washakie 3.7 SE 0.33 in 5548 Hudson 3 NNW 0.31 in 5555 Lander 0.4 WNW 0.31 in 5367 Lander 5.9 SSE 0.30 in 5556 RED CANYON RANCH NC LANDER 1 0.30 in 5777 Riverton 0.30 in 4990 Lander 6 SW 0.29 in 6555 Riverton 0.27 in 4966 Lander Airport 0.25 in 5565 Riverton 0.22 in 5390 Pavillion 5.8 E 0.19 in 5322 Crowheart 0.19 in 6137 Jeffrey City 0.10 in 6442 ...Johnson County... Barnum 7 SW 0.67 in 6439 Buffalo 4.0 N 0.64 in 4685 Buffalo 1.3 ENE 0.63 in 4699 Buffalo 0.6 E 0.56 in 4696 Barnum 4 S 0.42 in 5075 Buffalo 13 SSE 0.33 in 4819 Story 8 S 0.32 in 5278 Story 10 SW 0.31 in 8580 Buffalo 2NE 0.27 in 4770 Buffalo Airport 0.20 in 4905 Kaycee 14.6 W 0.20 in Buffalo 15 W 0.17 in 8398 Story 4 SE 0.17 in 4662 Buffalo 4 SSW 0.13 in 5262 Buffalo 18 NW 0.12 in 8604 ...Lincoln County... Afton 1.91 in 6257 Star Valley Ranch 1.0 S 1.70 in 6204 Afton 1.69 in 6248 Afton 1.39 in 6267 Alpine 5.9 S 1.28 in 5932 Thayne 1.22 in 5948 Bedford 1.8 S 1.16 in 6302 Star Valley Ranch 1.05 in 6253 Bedford 0.99 in 6279 Etna 0.93 in 5692 Etna 3.3 N 0.86 in 5989 Thayne 2SE 0.77 in 6086 Calpet 15 SW 0.72 in 6957 Smoot 5 SSE 0.51 in 7005 Cokeville 15 NE 0.31 in 8470 La Barge 5 SE 0.20 in 6529 ...Natrona County... Casper 2.0 ENE 1.21 in 5252 Casper 8 S 1.14 in 7740 Hiland 16 S 1.13 in 6379 Casper 1.2 E 0.98 in Casper 2.3 S 0.73 in 5647 Casper 1S 0.66 in 5522 Casper 5 SSW 0.54 in 6262 Casper Airport 0.47 in 5327 Casper 7.5 W 0.45 in 5361 Casper 2 SW 0.45 in 5434 Casper 0.7 WSW 0.43 in Casper 7.1 SW 0.32 in 5415 Casper 0.29 in 5341 ...Park County... Canyon 1 SW - YNP 1.11 in 7899 Mammoth 15 WSW 0.90 in 7899 Pahaska 3 E 0.30 in 7500 Pahaska 0.16 in 6692 Powell 0.5 WNW 0.12 in 446 Powell 4 ENE 0.11 in 4288 Crandall 0.11 in 6640 ...Sublette County... Kendall R.S. 1.20 in 7740 Cora 14.2 N 1.12 in 7740 Big Piney Airport 0.99 in 6944 Daniel 0.92 in 7341 Bondurant 2 NW 0.79 in 6726 Pinedale 1 NNW 0.67 in 7213 Boulder 0.61 in 7338 Boulder Rearing Station 0.59 in 6940 Pinedale 14 NW 0.56 in 7464 Pinedale 7 NE 0.41 in 8529 Big Piney 21 W 0.30 in 8200 Boulder 9 N 0.29 in 7350 Bondurant 0.24 in 6648 Daniel 11 N 0.22 in 7470 ...Sweetwater County... Green River 0.5 NNW 0.64 in 6185 Rock Springs 1.0 SSE 0.35 in 6330 Rock Springs 1.6 W 0.30 in Rock Springs 7 SE 0.25 in 6750 Rock Springs Airport 0.21 in 6745 Mckinnon 0.15 in 7086 Green River 0.13 in 6160 Green River 0.10 in 6109 Rock Springs 15 SE 0.10 in 7549 ...Teton County... South Entrance 19 W - YNP 1.55 in 6399 Alta 17 N 1.45 in 6830 Snake River R.S. - YNP 0.99 in 6882 South Entrance 5 SSW - YNP 0.95 in 7020 Lake Yellowstone - YNP 0.92 in 7839 South Entrance 3 W - YNP 0.77 in 7040 Jackson 12 NE 0.68 in 6663 Jackson Hole Airport 0.67 in 6453 Jackson 0.60 in 6210 Moran Jct 7 E 0.59 in 7250 Moose 4 N 0.58 in 6729 Jackson 7.8 N 0.58 in Alta 0.55 in 6430 Moran 0.49 in 6748 Jackson 0.3 ENE 0.39 in 6264 Wilson 1.0 SE 0.39 in 6155 Hoback 0.37 in 5928 Lake Yellowstone - YNP 0.35 in 7875 Jackson 0.32 in 6158 Old Faithful - YNP 0.23 in 7319 Jackson Dam 0.13 in 6776 ...Washakie County... Ten Sleep 12 ENE 0.14 in 8202 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. $$