A slow moving storm system moved over the area on 5th and 6th. Most locations received a couple of inches, but a snowfall amount greater than six inches was reported.
Every event with a place to put it; 1 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS CYS wrote it up.
A slow moving storm system moved over the area on 5th and 6th. Most locations received a couple of inches, but a snowfall amount greater than six inches was reported.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Cheyenne, WY wrote its last area forecast discussion before the first event at Apr 6, 12:52 PM MST, 4 hours 8 minutes earlier.
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</html>HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE CHEYENNE WY 625 AM MDT TUE APR 6 2010 WYZ106>108-117>119-071100- CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY- EAST PLATTE COUNTY-GOSHEN COUNTY-SOUTH LARAMIE RANGE FOOTHILLS- CENTRAL LARAMIE COUNTY-EAST LARAMIE COUNTY- 625 AM MDT TUE APR 6 2010 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHEAST WYOMING...MAINLY EAST OF THE LARAMIE RANGE. .DAY ONE...TODAY AND TONIGHT RAIN AND SNOW SHOWERS WILL CONTINUE TODAY AND GRADUALLY CHANGE TO ALL SNOW BY LATE THIS AFTERNOON AND THIS EVENING. THE SNOW WILL BECOME HEAVY AT TIMES THIS EVENING BEFORE TAPERING OFF EARLY WEDNESDAY MORNING. TOTAL SNOW ACCUMULATIONS WILL RANGE FROM 2 TO 6 INCHES BY SUNRISE WEDNESDAY...WITH LOCALLY HIGHER AMOUNTS POSSIBLE ALONG RIDGE TOPS AND IN THE FOOTHILLS OF THE LARAMIE RANGE. WEST WINDS WILL GUST AS HIGH AS 50 MPH IN OPEN AREAS TODAY. THE WINDS WILL SHIFT TO NORTHERLY TONIGHT WITH GUSTS AS HIGH AS 40 MPH. THE WINDS WILL PRODUCE AREAS OF BLOWING AND DRIFTING SNOW. A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW IS IN EFFECT THROUGH EARLY WEDNESDAY MORNING. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY WARMER WEATHER IS EXPECTED BY THE END OF THE WEEK AS A RIDGE OF HIGH PRESSURE BUILDS OVER THE AREA. .SPOTTER INFORMATION STATEMENT... SPOTTERS ARE URGED TO REPORT SNOW ACCUMULATIONS AND STRONG WINDS. && THIS PRODUCT...ALONG WITH OTHER WEATHER...HYDROLOGIC...AND CLIMATE INFORMATION IS AVAILABLE ON THE WEB AT... HTTP://WEATHER.GOV/CHEYENNE NEZ002-003-019>021-054-055-095-096-071100- DAWES-BOX BUTTE-SCOTTS BLUFF-BANNER-MORRILL-KIMBALL-CHEYENNE- NORTH SIOUX-SOUTH SIOUX- 625 AM MDT TUE APR 6 2010 THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE WESTERN NEBRASKA PANHANDLE. .DAY ONE...TODAY AND TONIGHT RAIN SHOWERS WILL CONTINUE TODAY AND GRADUALLY MIX WITH...AND CHANGE TO ALL SNOW BY LATE THIS EVENING. THE SNOW WILL BECOME HEAVY AT TIMES THIS EVENING BEFORE TAPERING OFF EARLY WEDNESDAY MORNING. TOTAL SNOW ACCUMULATIONS WILL RANGE FROM 1 TO 4 INCHES BY SUNRISE WEDNESDAY...WITH LOCALLY HIGHER AMOUNTS LIKELY ALONG RIDGE TOPS. WEST TO NORTHWEST WINDS WILL GUST AS HIGH AS 40 MPH IN OPEN AREAS TODAY. THE WINDS WILL SHIFT TO NORTHERLY TONIGHT WITH GUSTS AS HIGH AS 30 MPH. THE WINDS MAY PRODUCE AREAS OF BLOWING AND DRIFTING SNOW...ESPECIALLY ACROSS THE HIGHER ELEVATIONS. A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW IS IN EFFECT THROUGH EARLY WEDNESDAY MORNING. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY WARMER WEATHER IS EXPECTED BY THE END OF THE WEEK AS A RIDGE OF HIGH PRESSURE BUILDS OVER THE AREA. .SPOTTER INFORMATION STATEMENT... SPOTTERS ARE URGED TO REPORT SNOW ACCUMULATIONS AND STRONG WINDS. && THIS PRODUCT...ALONG WITH OTHER WEATHER...HYDROLOGIC...AND CLIMATE INFORMATION IS AVAILABLE ON THE WEB AT... HTTP://WEATHER.GOV/CHEYENNE WYZ112-114-071100- SIERRA MADRE RANGE-SNOWY RANGE- 625 AM MDT TUE APR 6 2010 THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE SOUTH CENTRAL WYOMING MOUNTAINS. .DAY ONE...TODAY AND TONIGHT SNOW...HEAVY AT TIMES...WILL CONTINUE OVER THE MOUNTAINS THROUGH TONIGHT. THE SNOW WILL TAPER OFF AND END LATE TUESDAY NIGHT AND EARLY WEDNESDAY MORNING. TOTAL SNOW ACCUMULATIONS WILL RANGE FROM 12 TO 18 INCHES BY SUNRISE WEDNESDAY. IN ADDITION...NORTHWEST WINDS WILL GUST AS HIGH AS 50 MPH IN OPEN AREAS TODAY. THE WINDS WILL SHIFT TO NORTHERLY TONIGHT WITH GUSTS AS HIGH AS 40 MPH. THE WINDS WILL PRODUCE AREAS OF BLOWING AND DRIFTING SNOW. A WINTER STORM WARNING REMAINS IN EFFECT THROUGH MIDNIGHT TONIGHT. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY WARMER WEATHER IS EXPECTED BY THE END OF THE WEEK AS A RIDGE OF HIGH PRESSURE BUILDS OVER THE AREA. .SPOTTER INFORMATION STATEMENT... SPOTTERS ARE URGED TO REPORT SNOW ACCUMULATIONS AND STRONG WINDS. && THIS PRODUCT...ALONG WITH OTHER WEATHER...HYDROLOGIC...AND CLIMATE INFORMATION IS AVAILABLE ON THE WEB AT... HTTP://WEATHER.GOV/CHEYENNE WYZ101>105-109>111-113-115-116-071100- CONVERSE COUNTY LOWER ELEVATIONS-NIOBRARA COUNTY- NORTH LARAMIE RANGE-FERRIS/SEMINOE/SHIRLEY MOUNTAINS- SHIRLEY BASIN-CENTRAL CARBON COUNTY-NORTH SNOWY RANGE FOOTHILLS- SOUTHWEST CARBON COUNTY-UPPER NORTH PLATTE RIVER BASIN- LARAMIE VALLEY-SOUTH LARAMIE RANGE- 625 AM MDT TUE APR 6 2010 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHEAST WYOMING...MAINLY ALONG AND WEST OF THE LARAMIE RANGE. .DAY ONE...TODAY AND TONIGHT SNOW...HEAVY AT TIMES...WILL CONTINUE OVER THE AREA THROUGH TONIGHT. THE SNOW WILL TAPER OFF AND END LATE TUESDAY NIGHT AND EARLY WEDNESDAY MORNING. TOTAL SNOW ACCUMULATIONS WILL RANGE FROM 3 TO 6 INCHES BY SUNRISE WEDNESDAY...WITH 6 TO 12 INCHES OVER THE MOUNTAINS. NORTHWEST SURFACE WINDS WILL GUST AS HIGH AS 50 MPH IN OPEN AREAS TODAY. THE WINDS WILL SHIFT TO NORTHERLY TONIGHT WITH GUSTS AS HIGH AS 40 MPH. THE WINDS WILL PRODUCE AREAS OF BLOWING AND DRIFTING SNOW. A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW IS IN EFFECT THROUGH MIDNIGHT TONIGHT. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY WARMER WEATHER IS EXPECTED BY THE END OF THE WEEK AS A RIDGE OF HIGH PRESSURE BUILDS OVER THE AREA. .SPOTTER INFORMATION STATEMENT... SPOTTERS ARE URGED TO REPORT SNOW ACCUMULATIONS AND STRONG WINDS. && THIS PRODUCT...ALONG WITH OTHER WEATHER...HYDROLOGIC...AND CLIMATE INFORMATION IS AVAILABLE ON THE WEB AT... HTTP://WEATHER.GOV/CHEYENNE TT
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</html>The national radar mosaic for the moment the first event began.
1 heavy snow. Local standard time, as filed.
The observer at Harrison 4NW measured 10.0 inches of snowfall, with a liquid equivalent of 1.15 inches.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Nebraska in 2010Every state in 2010This day in weather historyWarnings in Nebraska, April 2010
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-10-01. Each event’s entry at NCEI: 221284.