Alert archive / Wyoming / Flash Flood Watches in 2013

Flash Flood Watch 1, NWS Cheyenne, WY

September 9, 20134 counties in Wyoming

NWS Cheyenne, WY issued this flash flood watch at Sep 9, 2013, 10:56 AM MDT for 4 counties in Wyoming. It took effect at Sep 9, 2013, 12:00 PM MDT. It was in force for 10 hr.

The area

The counties it named.

The facts

Issued
Sep 9, 2013, 10:56 AM MDT (16:56 UTC)
In effect from
Sep 9, 2013, 12:00 PM MDT
Expired
Sep 9, 2013, 9:35 PM MDT
In force
10 hr
Issued by
NWS Cheyenne, WY
Flood severity
None

Counties Albany County, WY, Carbon County, WY, Laramie County, WY, Platte County, WY

The radar

The Cheyenne radar (KCYS), 88 km from the middle of the area, began a volume at 16:58 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 flash flood watch 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 flash flood watch went out at Sep 9, 3:38 AM MDT, 7 hours 18 minutes earlier.

Area forecast discussion, Sep 9, 3:38 AM MDT, 7 hours 18 minutes before
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Hazardous weather outlook, Sep 9, 10:43 AM MDT, 13 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHEYENNE WY
1043 AM MDT MON SEP 9 2013

NEZ019>021-054-055-WYZ103>119-101030-
SCOTTS BLUFF-BANNER-MORRILL-KIMBALL-CHEYENNE-NORTH LARAMIE RANGE-
FERRIS/SEMINOE/SHIRLEY MOUNTAINS-SHIRLEY BASIN-
CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY-
EAST PLATTE COUNTY-GOSHEN COUNTY-CENTRAL CARBON COUNTY-
NORTH SNOWY RANGE FOOTHILLS-SOUTHWEST CARBON COUNTY-
SIERRA MADRE RANGE-UPPER NORTH PLATTE RIVER BASIN-SNOWY RANGE-
LARAMIE VALLEY-SOUTH LARAMIE RANGE-SOUTH LARAMIE RANGE FOOTHILLS-
CENTRAL LARAMIE COUNTY-EAST LARAMIE COUNTY-
1043 AM MDT MON SEP 9 2013

THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE WESTERN NEBRASKA
PANHANDLE...EAST CENTRAL WYOMING...SOUTH CENTRAL WYOMING AND
SOUTHEAST WYOMING.

.DAY ONE...THIS AFTERNOON AND TONIGHT

NUMEROUS SHOWERS AND THUNDERSTORMS WILL AFFECT MUCH OF SOUTHEAST WYOMING
AND THE WESTERN NEBRASKA PANHANDLE. MANY OF THE STORMS WILL PRODUCE
HEAVY RAINFALL AS WELL AS BRIEF WIND GUSTS TO 40 MPH. SOME OF THE STORMS
WILL BECOME STRONG SOUTH OF INTERSTATE 80 WITH HAIL ALSO A
POSSIBILITY. THE HEAVY RAIN WILL CREATE THE POSSIBILITY OF MINOR
FLOODING ESPECIALLY OVER AND NEAR THE MOUNTAINS AND IN THE CITIES.
MUDSLIDES MAY BE POSSIBLE IN SOME OF THE AREAS IN THE MOUNTAINS. A
FLASH FLOOD WATCH HAS BEEN ISSUED FOR THE SNOWY...SIERRA MADRE AND
SOUTHERN LARAMIE RANGES AND NEARBY AREAS FOR THIS AFTERNOON THROUGH
MIDNIGHT TONIGHT.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

THE UNSETTLED WEATHER PATTERN WILL CONTINUE THROUGH THE END OF
THIS WEEK WITH SCATTERED TO NUMEROUS RAIN SHOWERS AND ISOLATED
THUNDERSTORMS. MORE ISOLATED SHOWERS AND THUNDERSTORMS ARE
FORECAST FOR THIS WEEKEND. SEVERE WEATHER IS NOT EXPECTED AT THIS
TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED THIS AFTERNOON AND TONIGHT.

&&

THIS PRODUCT...ALONG WITH OTHER WEATHER...HYDROLOGIC...AND
CLIMATE INFORMATION IS AVAILABLE ON THE WEB AT...
HTTP://WEATHER.GOV/CHEYENNE

NEZ002-003-095-096-WYZ101-102-101030-
DAWES-BOX BUTTE-NORTH SIOUX-SOUTH SIOUX-
CONVERSE COUNTY LOWER ELEVATIONS-NIOBRARA COUNTY-
1043 AM MDT MON SEP 9 2013

THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE WESTERN NEBRASKA
PANHANDLE AND EAST CENTRAL WYOMING.

.DAY ONE...THIS AFTERNOON AND TONIGHT

A COLD FRONT WILL PUSH SOUTH THROUGH THE AREA THIS MORNING AND
BECOME STATIONARY ACROSS NORTHERN COLORADO TONIGHT. SUBTROPICAL
MOISTURE COMBINED WITH MARGINAL INSTABILITY WILL RESULT IN
SCATTERED RAIN SHOWERS AND ISOLATED THUNDERSTORMS TODAY AND
TONIGHT. HIGH TEMPERATURES TODAY WILL BE 10 TO 15 DEGREES COOLER
THAN YESTERDAY.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

THE UNSETTLED WEATHER PATTERN WILL CONTINUE THROUGH THE END OF
THIS WEEK WITH SCATTERED RAIN SHOWERS AND ISOLATED THUNDERSTORMS.
MORE ISOLATED SHOWERS AND THUNDERSTORMS ARE FORECAST FOR THIS
WEEKEND. SEVERE WEATHER IS NOT EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED THIS AFTERNOON AND TONIGHT.

&&

THIS PRODUCT...ALONG WITH OTHER WEATHER...HYDROLOGIC...AND
CLIMATE INFORMATION IS AVAILABLE ON THE WEB AT...
HTTP://WEATHER.GOV/CHEYENNE

WEILAND

The office that day

Everything else NWS Cheyenne, WY issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Sep 8, 6:43 PM MDTSpecial Weather StatementCYSNiobrara62 min
Sep 9, 2:44 PM MDTSpecial Weather StatementCYSLaramie46 min
Sep 8, 6:41 PM MDTSpecial Weather StatementCYSSioux64 min
Sep 8, 7:36 PM MDTSpecial Weather StatementCYSDawes39 min
Sep 8, 7:56 PM MDTSevere Thunderstorm WarningCYSDawes, Sioux49 min

Nearby

Flash Flood Watches in Wyoming, 2013Every flash flood watch in 2013

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.