Alert archive / Wyoming / Severe Thunderstorm Warnings in 2009
Severe Thunderstorm Warning 157, NWS Cheyenne, WY
NWS Cheyenne, WY issued this severe thunderstorm warning at Jul 27, 2009, 4:41 PM MDT for Goshen County, Wyoming; Sioux County, Nebraska. It was in force for 35 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jul 27, 2009, 4:41 PM MDT (22:41 UTC)
- Expired
- Jul 27, 2009, 5:16 PM MDT
- In force
- 35 min
- Issued by
- NWS Cheyenne, WY
- Area
- Storm-based polygon
Counties Sioux County, NE, Goshen County, WY
The radar
The Cheyenne radar (KCYS), 141 km from the middle of the area, began a volume at 22:43 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, 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 this severe thunderstorm warning went out at Jul 27, 3:37 PM MDT, 1 hour 4 minutes earlier.
Area forecast discussion, Jul 27, 3:37 PM MDT, 1 hour 4 minutes before
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</html>Hazardous weather outlook, Jul 27, 10:45 AM MDT, 5 hours 56 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE CHEYENNE WY 1045 AM MDT MON JUL 27 2009 NEZ001>003-019>021-054-055-WYZ059>070-281645- SIOUX-DAWES-BOX BUTTE-SCOTTS BLUFF-BANNER-MORRILL-KIMBALL- CHEYENNE-CONVERSE-NIOBRARA-SOUTHWEST CARBON-NORTH CARBON- SNOWY RANGE-NORTH LARAMIE RANGE-LARAMIE VALLEY-LARAMIE RANGE- PLATTE-GOSHEN-CHEYENNE FOOTHILLS-PINE BLUFFS- 1045 AM MDT MON JUL 27 2009 THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE WESTERN NEBRASKA PANHANDLE AND SOUTHEAST WYOMING. .DAY ONE...TODAY AND TONIGHT SCATTERED THUNDERSTORMS WILL DEVELOP THIS AFTERNOON AND BECOME MORE NUMEROUS BY THIS EVENING. A FEW THUNDERSTORMS THIS AFTERNOON MAY BECOME SEVERE CONTAINING LARGE HAIL AND DAMAGING WINDS. AS THUNDERSTORM ACTIVITY BECOMES MORE NUMEROUS LATE THIS AFTERNOON AND EARLY THIS EVENING...THE PRIMARY HAZARD WILL BECOME HEAVY RAIN. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW...BUT THERE WILL BE SOME LATE DAY THUNDERSTORMS AROUND JUST ABOUT EVERY DAY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVITY MAY BE NEEDED THIS AFTERNOON AND THIS EVENING...ESPECIALLY FOR LOCATIONS ALONG AND EAST OF THE LARAMIE RANGE. && THIS PRODUCT...ALONG WITH OTHER WEATHER...HYDROLOGIC...AND CLIMATE INFORMATION IS AVAILABLE ON THE WEB AT... HTTP://WEATHER.GOV/CHEYENNE
In the hours before
Special weather statement, Jul 27, 2:03 PM MDT, 2 hours 38 minutes before
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</html>Local storm report, Jul 27, 2:22 PM MDT, 2 hours 19 minutes before
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</html>Special weather statement, Jul 27, 2:36 PM MDT, 2 hours 5 minutes before
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</html>Local storm report, Jul 27, 3:28 PM MDT, 1 hour 13 minutes before
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</html>Local storm report, Jul 27, 3:32 PM MDT, 1 hour 9 minutes before
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</html>Special weather statement, Jul 27, 4:36 PM MDT, 5 minutes before
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<div class="status" id="status">Temporary Notice</div>
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Please try again in a few minutes.
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</html>The office that day
Everything else NWS Cheyenne, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 27, 2:58 PM MDT | Severe Thunderstorm Warning | CYS | Albany, Laramie | 47 min |
| Jul 27, 5:23 PM MDT | Severe Thunderstorm Warning | CYS | Sioux | 52 min |
Nearby
Severe Thunderstorm Warnings in Wyoming, 2009Severe Thunderstorm Warnings in Nebraska, 2009Every severe thunderstorm warning in 2009
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.