Flood Watch issued May 18 at 1:12PM MDT until May 19 at 6:00PM MDT by NWS Billings MT
* WHAT...Flooding caused by excessive rainfall is possible. * WHERE...Portions of south central Montana, including the following areas, Bighorn Canyon, Pryor/Northern Bighorn Mountains and Southern Big Horn and north central Wyoming, including the following areas, Northeast Bighorn Mountains and Sheridan Foothills. * WHEN...Through Monday afternoon. * IMPACTS...Excessive runoff may result in flooding of small streams, and other low-lying and flood-prone locations. Heavy rainfall may cause flash flooding and debris flows over and near the Elk Fire Burn Scar. * ADDITIONAL DETAILS... - Thunderstorms have the potential to produce locally heavy rainfall through this evening. Heavy precipitation would be problematic in
Tornado Watch issued May 18 at 6:58PM MDT until May 18 at 8:00PM MDT by NWS Goodland KS
TORNADO WATCH 286 REMAINS VALID UNTIL 8 PM MDT /9 PM CDT/ THIS EVENING FOR THE FOLLOWING AREAS IN KANSAS THIS WATCH INCLUDES 12 COUNTIES IN NORTHWEST KANSAS CHEYENNE DECATUR GRAHAM NORTON RAWLINS SHERIDAN SHERMAN THOMAS IN WEST CENTRAL KANSAS GOVE LOGAN WALLACE WICHITA IN NEBRASKA THIS WATCH INCLUDES 3 COUNTIES IN SOUTHWEST NEBRASKA DUNDY HITCHCOCK RED WILLOW THIS INCLUDES THE CITIES OF ATWOOD, BENKELMAN, BIRD CITY, COLBY, CULBERTSON, GOODLAND, GRAINFIELD, GRINNELL, HILL CITY, HOXIE, LEOTI, MCCOOK, NORTON, OAKLEY, OBERLIN, PALISADE, QUINTER, SHARON SPRINGS, ST. FRANCIS, STRATTON NE, AND TRENTON.
Winter Weather Advisory issued May 18 at 1:10PM MDT until May 20 at 12:00AM MDT by NWS Billings MT
* WHAT...Snow and brisk northwest winds expected. Total snow accumulations of 4 to 9 inches. Winds gusting as high as 40 mph. * WHERE...In Montana, Pryor/Northern Bighorn Mountains. In Wyoming, Northeast Bighorn Mountains. * WHEN...From midnight tonight to midnight MDT Monday Night. * IMPACTS...Travel could be difficult on Highway 14 through the Bighorn Mountains. Recreation in the high country will be affected by wintry conditions. * ADDITIONAL DETAILS...Greatest snow accumulations will be above 7000 feet.
Frost Advisory issued May 18 at 1:27PM MDT until May 19 at 8:00AM MDT by NWS Boise ID
* WHAT...For the Wind Advisory, northwest winds 25 to 35 mph with gusts up to 55 mph. For the Frost Advisory, temperatures between 32 and 36 degrees will result in frost formation. * WHERE...Western Magic Valley and Upper Treasure Valley. * WHEN...For the Wind Advisory, until 9 PM MDT this evening. For the Frost Advisory, from midnight tonight to 8 AM MDT Monday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered.
Wind Advisory issued May 18 at 1:27PM MDT until May 18 at 9:00PM MDT by NWS Boise ID
* WHAT...For the Wind Advisory, northwest winds 25 to 35 mph with gusts up to 55 mph. For the Frost Advisory, temperatures between 32 and 36 degrees will result in frost formation. * WHERE...Western Magic Valley and Upper Treasure Valley. * WHEN...For the Wind Advisory, until 9 PM MDT this evening. For the Frost Advisory, from midnight tonight to 8 AM MDT Monday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered.
Frost Advisory issued May 18 at 2:00AM MDT until May 19 at 9:00AM MDT by NWS Pocatello ID
* WHAT...Temperatures as low as 33 will result in frost formation. * WHERE...Arco/Mud Lake Desert and Upper Snake River Plain. * WHEN...From 2 AM to 9 AM MDT Monday. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered.
Wind Advisory issued May 18 at 2:00AM MDT until May 18 at 9:00PM MDT by NWS Pocatello ID
* WHAT...Northwest winds 25 to 35 mph with gusts up to 60 mph expected. * WHERE...Raft River Region and Southern Hills/Albion Mountains. * WHEN...From 6 AM this morning to 9 PM MDT this evening. * IMPACTS...Gusty winds could make driving difficult, especially for high profile vehicles. Unsecured objects may be blown around. Strong winds and rough waves on area lakes will create hazardous conditions for small craft.
Tornado Warning issued May 18 at 6:41PM MDT until May 18 at 7:00PM MDT by NWS Goodland KS
At 640 PM MDT/740 PM CDT/, a severe squall line capable of producing both tornadoes and extensive straight line wind damage was located 5 miles northeast of Haigler, or 17 miles west of Benkelman, moving northeast at 30 mph. HAZARD...Tornado and ping pong ball size hail. SOURCE...Radar indicated rotation. IMPACT...Flying debris will be dangerous to those caught without shelter. Mobile homes will be damaged or destroyed. Damage to roofs, windows, and vehicles will occur. Tree damage is likely. This tornadic thunderstorm will remain over mainly rural areas of northwestern Cheyenne County in northwestern Kansas and southwestern Dundy Counties in southwestern
Severe Thunderstorm Warning issued May 18 at 6:37PM MDT until May 18 at 7:00PM MDT by NWS Goodland KS
At 637 PM MDT/737 PM CDT/, severe thunderstorms were located along a line extending from 16 miles south of Pleasant Valley to 5 miles northwest of Haigler to 11 miles northwest of St. Francis, moving northeast at 45 mph. HAZARD...Ping pong ball size hail and 60 mph wind gusts. SOURCE...Public. Quarter size hail was reported in northern Cheyenne county. IMPACT...People and animals outdoors will be injured. Expect hail damage to roofs, siding, windows, and vehicles. Expect wind damage to roofs, siding, and trees. These severe storms will be near... Haigler around 640 PM MDT. Other locations impacted by these severe
Winter Weather Advisory issued May 18 at 4:42AM MDT until May 19 at 6:00AM MDT by NWS Denver CO
* WHAT...Snow expected. Total snow accumulations between 3 to 7 inches for elevations above 10,000 feet. Winds gusting as high as 45 mph. * WHERE...Rabbit Ears Pass, and The Mountains of Summit County, the Mosquito Range, and the Indian Peaks. * WHEN...Until 6 AM MDT Monday. * IMPACTS...Slick travel conditions may develop over the high mountain passes.