Scattered severe thunderstorms are expected this afternoon and evening from eastern Texas into the lower Mississippi and Tennessee Valleys/southern Appalachians. Heavy to excessive rainfall may produce flash flooding from the lower Mississippi River Valley into the southern Appalachians today. A late-season snowstorm will continue heavy snow over parts of the central Rockies through today. Read More >
Early Fall Storm brings Widespread Heavy Rain, Significant Mountain Snow and High Winds
|
A major fall storm brought very heavy rainfall, significant mountain snowfall and localized damaging winds to western and central Wyoming Sunday and Monday. The heaviest rainfall occurred across the Big Horn Basin where 1 to 2 inches of rain was common with some minor flooding. The Big Horn River saw a rapid rise to bankfull conditions Monday evening into the day Tuesday. The Big Horn River went from 3.5 feet on Monday, October 3rd to cresting at 9.7 feet by midday Tuesday, October 4th. Flood stage is 10.5 feet at this location with bankfull conditions at 9.5 feet. Significant mountain snowfall occurred across the far western mountains as well as Bighorn Mountains. Grand Targhee Ski Resort received an estimated foot and a half of snowfall from this storm system ending at Noon Tuesday. Areas of the Bighorn Mountains also received around a foot of snowfall. On Monday, strong to damaging winds occurred from southeast Fremont into Natrona County. A gust of 73 mph was recorded on the south side of Casper Monday evening. This strong wind did some significant damage to at least one roof. Below are lists of final snowfall totals, rainfall totals, and peak wind gusts across western and central Wyoming. |
 Big Horn River at Basin around Noon on Tuesday, October 4th after 1 to 2 inches of rain fell on Monday across the Big Horn Basin. |
 |
|
...FINAL RAINFALL REPORTS FROM SUNDAY THROUGH TUESDAY MORNING...
Location Rainfall
Big Horn County...
2 SE Burlington... 1.75 Inches.
Basin... 1.66 Inches.
9 NNW Shell... 1.42 Inches.
Lovell... 1.28 Inches.
2 SSW Lovell... 1.25 Inches.
Greybull... 1.03 Inches.
Greybull... 0.97 Inch.
Greybull ASOS at airport... 0.83 Inches.
Powell Field Station... 0.82 Inch.
Deaver... 0.63 Inch.
Fremont County...
Boysen Dam... 2.23 Inches.
Shoshoni... 1.74 Inches.
Atlantic City... 0.90 Inch.
Riverton town... 0.81 Inch.
2 W Riverton... 0.78 Inch.
Riverton ASOS at airport 0.77 inches.
2 NNE Lander... 0.70 Inch.
Hudson... 0.65 Inch.
10 WNW Dubois... 0.65 Inch.
Dubois... 0.44 Inch.
9 SSE Lander... 0.44 Inch.
Burris... 0.40 Inch.
1 N Lander... 0.40 Inch.
7 SE Lander... 0.37 Inch.
Sweetwater Station... 0.35 Inch.
Lander... 0.35 Inch.
7 SE Lander... 0.34 Inch.
Jeffrey City... 0.33 Inch.
6 SW Lander... 0.32 Inch.
Lander ASOS at airport... 0.29 Inch.
Hot Springs County...
3 NE Thermopolis... 2.31 Inches.
Thermopolis... 2.12 Inches.
9 NE Thermopolis... 2.10 Inches.
Kirby... 1.83 Inches.
Thermopolis... 1.77 Inches.
Johnson County...
Buffalo... 1.60 Inches.
Buffalo ASOS at airport 1.30 inches.
7 NE Buffalo... 0.95 Inch.
4 SSW Buffalo... 0.55 Inch.
17 NNW Kaycee... 0.14 Inch.
Lincoln County...
3 SE Bedford... 1.12 Inches.
2 SE Thayne... 1.10 Inches.
5 NNE Thayne... 1.10 Inches.
Star Valley Ranch... 1.06 Inches.
5 SSE Smoot... 1.02 Inches.
21 NNW Kemmerer... 0.91 Inch.
Fossil Butte... 0.78 Inch.
3 E Freedom... 0.73 Inch.
Afton... 0.56 Inch.
Natrona County...
12 NE Lysite... 0.84 Inch.
5 SSW Casper... 0.45 Inch.
Powder River... 0.34 Inch.
Casper... 0.15 to 0.26 Inch.
Casper Mountain... 0.24 Inch.
4 SW Casper... 0.24 Inch.
4 WSW Casper... 0.13 Inch.
10 WSW Casper... 0.05 Inch.
3 WSW Casper... 0.04 Inch.
Casper ASOS at airport... 0.03 Inch.
Park County...
Cody... 1.28 to 1.44 Inches.
Pahaska... 1.38 Inches.
5 ESE Cody... 1.36 Inches.
2 WSW Cody... 1.28 Inches.
4 SE Cody... 1.27 Inches.
5 NE Cody... 1.25 Inches.
3 NE Sunshine... 1.12 Inches.
4 SW Powell... 0.95 Inch.
7 SW Cody... 0.87 Inch.
Powell... 0.73 Inch.
4 ENE Powell... 0.72 Inch.
3 NE Clark... 0.52 Inch.
26 SW Cody... 0.47 Inch.
Sublette County...
Boulder Rearing Station... 1.00 Inches.
Pinedale... 0.91 Inch.
14 NW Pinedale... 0.83 Inch.
Daniel Fish Hatchery... 0.78 Inch.
Big Piney ASOS at airport... 0.63 Inch.
Sweetwater County...
5 N Farson... 0.80 Inch.
Green River... 0.68 to 0.73 Inch.
Rock Springs... 0.62 to 0.70 Inch.
Wamsutter... 0.51 Inch.
Buckboard Marina... 0.43 Inch.
Rock Springs ASOS at airport... 0.23 Inch.
Teton County...
1 NNW Alta... 1.73 Inches.
Jackson Dam... 1.48 Inches.
5 NW Jackson... 1.02 Inches.
3 NNE Wilson... 0.80 Inch.
2 NE Teton Village... 0.79 Inch.
12 NE Jackson... 0.79 Inch.
Jackson... 0.78 Inch.
Washakie County...
8 SW Worland... 2.15 Inches.
Worland... 2.12 Inches.
Worland ASOS at airport 2.06 Inches.
Winchester... 1.75 Inches.
2 NE Worland... 1.71 Inches.
Worland... 1.50 Inches.
Ten Sleep... 1.30 Inches.
5 NNW Ten Sleep... 1.24 Inches.
16 SSE Ten Sleep... 0.93 Inch.
Yellowstone National Park...
Yellowstone East Entrance... 1.63 Inches.
Lake Yellowstone ASOS 1.12 Inches.
Snake River Ranger Station... 1.06 Inches.
East Entrance Ranger Station... 1.05 Inches.
Snake River Ranger Station... 0.75 Inch.
...FINAL SNOWFALL REPORTS FORM SUNDAY NIGHT THROUGH TUESDAY MORNING... Location Snowfall Big Horn County... Bald Mountain Snotel... 13 inches. Shell Creek Snotel... 9 inches. Bone Springs Divide Snotel... 8 inches. Fremont County... Deer Park Snotel... 6 inches. South Pass Snotel... 5 inches. Atlantic City... 3.1 inches. Brooks Lake... 3 inches. 14 N Shoshoni... 3 inches. Little Warm Snotel... 3 inches. Burroughs Creek Snotel... 2 inches. Hobbs Park Snotel... 2 inches. St. Lawrence Alt Snotel... 1 inch. Hot Springs County... Owl Creek Snotel... 1 inch. Johnson County... Cloud Peak Reservoir Snotel... 4 inches. Bear Trap Meadow Snotel... 4 inches. Little Goose Snotel... 1 inch. Soldier Park Snotel... 1 inch. Lincoln County... Willow Creek Snotel... 13 inches. Cottonwood Creek Snotel... 6 inches. Indian Creek Snotel... 6 inches. Spring Creek Divide Snotel... 6 inches. Kelley Ranger Station Snotel... 4 inches. 3 SE Bedford... 2 inches. Blind Bull Summit Snotel... 2 inches. Hams Fork Snotel... 2 inches. Salt River Summit Snotel... 2 inches. Natrona County... Grave Spring Snotel... 10 inches. Park County... Blackwater Snotel... 6 inches. Evening Star Snotel... 5 inches. Marquette Snotel... 2 inches. Wolverine Snotel... 1 inch. Kirwin Snotel... 1 inch. Sublette County... Larsen Creek Snotel... 8 inches. Big Sandy Opening Snotel... 8 inches. Elkhart Park G.S. Snotel... 6 inches. Triple Peak Snotel... 6 inches. Gunsite Pass Snotel... 6 inches. Boulder Rearing Station... 4 inches. Snider Basin Snotel... 4 inches. New Fork Lake Snotel... 2 inches. Kendall Ranger Station Snotel... 1 inch. East Rim Divide Snotel... 1 inch. Loomis Park Snotel... 1 inch. Teton County... Grand Targhee Snotel... 18 inches. Jackson Hole - Rendezvous Bowl... 9 inches. Togwotee Pass Snotel... 7 inches. Jackson Hole - Raymer... 7 inches. Grassy Lake Snotel... 6 inches. Phillips Bench Snotel... 5 inches. Jackson Hole - Mid Mountain... 3 inches. Gros Ventre Summit Snotel... 2 inches. Snow King... 2 inches. Base Camp Snotel... 1 inch. Washakie County... Middle Powder Snotel... 17 inches. Powder River Pass Snotel... 7 inches. Yellowstone National Park... Sylvan Lake Snotel... 11 inches. Parker Peak Snotel... 10 inches. Sylvan Road Snotel... 4 inches. Lewis Lake Divide Snotel... 4 inches. Yellowstone East Entrance... 1 inch. Bechler River Ranger Station... 0.5 inches.
...PEAK WIND GUSTS FOR MONDAY OCTOBER 3RD... Below are peak wind gusts of 45 mph and greater that occurred Monday. Location Speed Time/Date Elevation (ft.) ...FREMONT COUNTY... 7 SW Muddy Gap 65 MPH 0650 PM 10/03 7380 Beaver Rim 57 MPH 0411 AM 10/03 6784 Red Canyon 50 MPH 0400 AM 10/03 6768 8 W South Pass City 47 MPH 0350 AM 10/03 8120 2 W South Pass City 47 MPH 0336 AM 10/03 8185 Jeffrey City 46 MPH 0508 PM 10/03 6374 10 W Fort Washakie 46 MPH 0701 PM 10/03 9235 ...JOHNSON COUNTY... 7 SW Barnum 55 MPH 0846 PM 10/03 6440 ...LINCOLN COUNTY... Mt Coffin 72 MPH 0500 PM 10/03 10870 3 E Sage Junction 49 MPH 0210 AM 10/03 6378 ...NATRONA COUNTY... Casper Outer Drive 73 MPH 0701 PM 10/03 5463 16 S Hiland 70 MPH 0610 PM 10/03 6380 Casper Airport 61 MPH 0820 PM 10/03 5320 20 N Casper 60 MPH 0836 PM 10/03 5677 8 S Casper 59 MPH 0552 PM 10/03 7740 2 SE Hiland 54 MPH 0735 PM 10/03 6134 Natrona 53 MPH 0830 PM 10/03 5589 7 W Alcova 52 MPH 0535 PM 10/03 6342 ...PARK COUNTY... Powell Airport 46 MPH 0755 PM 10/03 5050 ...SUBLETTE COUNTY... 21 W Big Piney 46 MPH 0409 PM 10/03 8200 ...SWEETWATER COUNTY... I 80 - Mile Marker 142 57 MPH 0600 AM 10/03 7162 I 80 - Mile Marker 184 50 MPH 0741 AM 10/03 7112 15 SE Rock Springs 49 MPH 0544 PM 10/03 7550 I 80 - Mile Marker 124 48 MPH 0306 AM 10/03 6475 I 80 - Mile Marker 131 48 MPH 0310 AM 10/03 6636 I 80 - Mile Marker 157 47 MPH 0315 PM 10/03 6965 7 WSW Rock Springs 46 MPH 0220 AM 10/03 6238 1 NNE Green River 45 MPH 0217 PM 10/03 6315 Rock Springs Airport 45 MPH 0243 AM 10/03 6760 ...TETON COUNTY... Summit - Jackson Resort 63 MPH 0500 PM 10/03 10318 ...YELLOWSTONE NATIONAL PARK... Hoyt Peak 64 MPH 0730 PM 10/03 9800 1 W Grant Village 53 MPH 0410 PM 10/03 7874
 |
Media use of NWS Web News Stories is encouraged! Please acknowledge the NWS as the source of any news information accessed from this site. |
|
Follow us on X
Follow us on Facebook
Follow us on YouTube
RIW RSS Feed