Severe thunderstorms, heavy rainfall, and flooding are possible from the northern Rockies into the Upper Midwest. A derecho is likely across portions of the northern Plains, with several gusts expected to exceed 75 mph. Extreme heat is expected to intensify across much of the Southeast and Tennessee Valley, continuing through much of this week. Read More >
Overview
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April 2, 2018 - A potent early spring storm system ushered in strong wind across much of western and central Wyoming on Monday. Heavy snow developed across much of northern Wyoming behind a cold front. 6" to 10" of snow fell from Cody to Meeteetse closing State Highway 120 Monday evening. Snow and strong wind also closed Interstates 25 and 90 across Johnson County along with U.S. Highway 16 over Powder River Pass. Winter Storm Warnings remained in effect until 6 am Tuesday for eastern Johnson County. |
 Preliminary Snowfall Totals for April 2, 2018 (as of 8 am Tuesday) |
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| Interstate 90 north of Buffalo early Monday evening |
8.5" of new snow measured in Cody at 9 PM, Monday | Around a foot of new snow covering the deck at Sleeping Giant Ski area near Pahaska early Monday evening. |
Wind:
***** 24 Hour Peak Wind Reports Ending 11 PM on April 2, 2018 ***** Location Speed Time/Date Elevation (ft.) ...Wyoming... ...Big Horn County... Cowley Airport 52 MPH 0315 PM 04/02 4090 Greybull Airport 49 MPH 0606 PM 04/02 3935 ...Fremont County... Red Canyon 63 MPH 1110 AM 04/02 6768 Beaver Rim 56 MPH 0146 PM 04/02 6784 8 W South Pass City 54 MPH 0250 PM 04/02 8120 Lander Airport 54 MPH 1217 PM 04/02 5586 Jeffrey City 53 MPH 0228 PM 04/02 6374 Dubois Airport 53 MPH 0355 PM 04/02 7297 10 W Fort Washakie 53 MPH 0501 AM 04/02 9235 10 N Dubois 52 MPH 1257 PM 04/02 8085 Riverton Airport 48 MPH 0526 PM 04/02 5525 3 S Togwotee Pass 47 MPH 0100 PM 04/02 10430 3 NNW Hudson 47 MPH 1146 AM 04/02 5555 2 W South Pass City 45 MPH 0146 PM 04/02 8185 ...Hot Springs County... Thermopolis 46 MPH 1130 PM 04/01 4426 ...Johnson County... 25 ESE Buffalo 54 MPH 1015 PM 04/02 4657 7 SW Barnum 53 MPH 1246 AM 04/02 6440 Buffalo Airport 48 MPH 1023 PM 04/02 4970 5 ESE Story 47 MPH 1016 PM 04/02 4673 ...Lincoln County... 13 W Kemmerer 47 MPH 0545 PM 04/02 6718 Thayne 45 MPH 0418 PM 04/02 5928 1 S Bedford 45 MPH 0617 PM 04/02 6279 ...Natrona County... 16 S Hiland 71 MPH 0410 PM 04/02 6380 Casper Airport 54 MPH 1046 AM 04/02 5320 7 W Alcova 54 MPH 0345 PM 04/02 6342 8 S Casper 52 MPH 0252 PM 04/02 7740 2 SE Hiland 50 MPH 1035 PM 04/02 6134 Casper Outer Drive 49 MPH 1121 AM 04/02 5463 ...Park County... Hoyt Peak 70 MPH 0815 AM 04/02 9800 8 N Meeteetse 55 MPH 0436 PM 04/02 5926 8 S Clark 51 MPH 0600 PM 04/02 4710 Powell Airport 51 MPH 0255 PM 04/02 5050 2 N Frannie 50 MPH 0339 PM 04/02 4275 1 W Clark 46 MPH 0342 PM 04/02 4270 Powell 45 MPH 0510 PM 04/02 4386 3 E Pahaska 45 MPH 0557 PM 04/02 7500 ...Sublette County... Big Piney Airport 55 MPH 1107 AM 04/02 6974 21 W Big Piney 49 MPH 0809 PM 04/02 8200 Pinedale Airport 47 MPH 0235 PM 04/02 7085 ...Sweetwater County... I 80 - Mile Marker 142 63 MPH 0440 PM 04/02 7162 15 SE Rock Springs 56 MPH 0844 PM 04/02 7550 Rock Springs Airport 55 MPH 0222 PM 04/02 6760 Farson 55 MPH 0135 PM 04/02 6594 3 ENE Granger 54 MPH 1145 AM 04/02 6254 I 80 - Mile Marker 157 54 MPH 0335 PM 04/02 6965 I 80 - Mile Marker 184 52 MPH 0516 PM 04/02 7112 20 ENE Opal 52 MPH 0206 PM 04/02 6556 23 W Wamsutter 52 MPH 0515 PM 04/02 6804 5 E Rock Springs 50 MPH 0315 PM 04/02 6369 I 80 - Mile Marker 124 47 MPH 0431 PM 04/02 6475 7 WSW Rock Springs 46 MPH 0335 PM 04/02 6238 ...Teton County... Summit - Jackson Resort 62 MPH 1045 AM 04/02 10318 5 ENE Alta - Freds Mtn 61 MPH 0215 PM 04/02 9840 4 N Moose 48 MPH 0458 PM 04/02 6730 Jackson Hole Airport 45 MPH 0459 PM 04/02 6445 ...Washakie County... 15 SSW Big Trails 50 MPH 1140 PM 04/01 6554 $$
Snow
*** Snowfall Reports from Sunday evening, April 1st until 8 am Tuesday, April 3, 2018 *** Location Snowfall Big Horn County... Bald Mountain Snotel... 8 inches. Bone Springs Divide Snotel... 7 inches. 2 SSW Lovell... 6 inches. Byron... 5 inches. Lovell... 4 inches. Shell Creek Snotel... 3 inches. 1 W Lovell... 2 inches. 9 ENE Greybull... 1.1 inches. Powell Field Station... 1 inch. Deaver... 1 inch. 7 W Basin... 1 inch. Greybull... 0.9 inches. Fremont County... Little Warm Snotel... 7 inches. Brooks Lake... 7 inches. Burroughs Creek Snotel... 5 inches. Hobbs Park Snotel... 5 inches. Castle Creek Snotel... 3 inches. Cold Springs Snotel... 2 inches. Deer Park Snotel... 1 inch. St. Lawrence Alt Snotel... 1 inch. Lander Airport... 0.1 inches. 9 SSE Lander... 0.1 inches. Hot Springs County... Wind River Canyon... 3.5 inches. 9 NE Thermopolis... 1.4 inches. Lucerne... 0.6 inches. Johnson County... Little Goose Snotel... 10 inches. Hansen Sawmill Snotel... 10 inches. Cloud Peak Reservoir Snotel... 9 inches. Soldier Park Snotel... 7 inches. Bear Trap Meadow Snotel... 6 inches. 17 NNW Kaycee... 4.5 inches. 4 SSW Buffalo... 4 inches. 13 SSE Buffalo... 3 inches. Buffalo... 2.5 inches. Lincoln County... Blind Bull Summit... 8 inches. Blind Bull Summit Snotel... 7 inches. Willow Creek Snotel... 6 inches. 5 SSE Smoot... 4 inches. Box Y Ranch... 3 inches. Cottonwood Creek Snotel... 3 inches. Commissary Ridge... 2 inches. Spring Creek Divide Snotel... 2 inches. 5 NNE Thayne... 1.5 inches. Fossil Butte... 1 inch. 2 SE Thayne... 0.8 inches. Afton... 0.6 inches. Natrona County... 1 S Casper... 3.8 inches. Grave Springs Snotel... 3 inches. Casper Mountain Snotel... 3 inches. 5 SSW Casper... 3 inches. 4 WSW Casper... 2.8 inches. Edgerton... 2.5 inches. 10 WSW Casper... 2 inches. Midwest... 2 inches. Casper... 2 inches. Casper Airport... 1.3 inches. 11 WSW Casper... 1 inch. Powder River... 1 inch. Park County... Beartooth Lake Snotel... 16 inches. Blackwater Snotel... 14 inches. Wolverine Snotel... 14 inches. Pahaska... 13.6 inches. Evening Star Snotel... 12 inches. 5 WSW Meeteetse... 10 inches. Marquette Snotel... 10 inches. Kirwin Snotel... 9 inches. 2 WSW Cody... 8.5 inches. Cody... 1.6 to 8 inches. 3 NE Clark... 7.5 inches. 3 NE Sunshine... 7 inches. 4 SE Cody... 5.7 inches. 4 SW Powell... 4.2 inches. Wapiti... 4 inches. Powell... 3.5 inches. 4 ENE Powell... 2.2 inches. Timber Creek Snotel... 1 inch. Sublette County... Triple Peak Snotel... 7 inches. Loomis Park Snotel... 7 inches. Gunsite Pass Snotel... 7 inches. Kendall Ranger Station Snotel... 4 inches. East Rim Divide Snotel... 3 inches. Elkhart Park G.S. Snotel... 1 inch. Snider Basin Snotel... 1 inch. 14 NW Pinedale... 1 inch. Pinedale... 0.3 to 0.5 inches. Teton County... Jackson Hole - Raymer... 12 inches. Jackson Hole - Mid Mountain... 10 inches. Granite Creek Snotel... 9 inches. Jackson Hole - Rendezvous Bowl... 9 inches. Togwotee Pass Snotel... 8 inches. Phillips Bench Snotel... 7 inches. Gros Ventre Summit Snotel... 7 inches. Darwin Ranch... 6.1 inches. Togwotee Mountain Lodge... 6 inches. Base Camp Snotel... 6 inches. Snow King... 4 inches. Grand Targhee - Chief Joseph... 4 inches. 3 SSW Wilson... 3 inches. Grassy Lake Snotel... 3 inches. Snake River Stn Snotel... 2 inches. Moose... 1.2 inches. 2 NE Teton Village... 1 inch. Jackson Hole - Base... 1 inch. Grand Targhee Snotel... 1 inch. 12 NE Jackson... 0.5 inches. Jackson... 0.5 inches. Jackson Dam... 0.3 inches. Washakie County... Middle Powder Snotel... 7 inches. 27 S Ten Sleep... 3.5 inches. Powder River Pass Snotel... 3 inches. 16 SSE Ten Sleep... 2 inches. 5 NNW Ten Sleep... 1 inch. 8 SW Worland... 0.5 inches. Yellowstone National Park... Sylvan Lake Snotel... 13 inches. Sylvan Road Snotel... 13 inches. Parker Peak Snotel... 11 inches. Thumb Divide Snotel... 11 inches. Two Ocean Plateau Snotel... 11 inches. Canyon Snotel... 5 inches. Lewis Lake Divide Snotel... 3 inches.
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