Alert archive / Nebraska / Areal Flood Advisories in 2014
Areal Flood Advisory 21, NWS Cheyenne, WY
NWS Cheyenne, WY issued this areal flood advisory at Jul 11, 2014, 9:59 PM MDT for Morrill County, Scotts Bluff County, Nebraska. It was in force for 4 hr.
The area
The counties it named.
The facts
- Issued
- Jul 11, 2014, 9:59 PM MDT (03:59 UTC)
- Expired
- Jul 12, 2014, 2:00 AM MDT
- In force
- 4 hr
- Issued by
- NWS Cheyenne, WY
- Area
- Storm-based polygon
Counties Morrill County, NE, Scotts Bluff County, NE
The radar
The Cheyenne radar (KCYS), 140 km from the middle of the area, began a volume at 04:03 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.
The nearest sounding before it
Denver, CO (KDEN), launched 00:00Z, 4.0 hours before the alert went out and 213 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 21 J/kg
- Mixed-layer CIN
- -163 J/kg
- Mixed-layer LCL
- 1899 m above ground
- 0-6 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- -21 m²/s²
- 0-3 km storm-relative helicity
- 46 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this areal flood advisory 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 areal flood advisory went out at Jul 11, 9:49 PM MDT, 10 minutes earlier.
Area forecast discussion, Jul 11, 9:49 PM MDT, 10 minutes before
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</html>Hazardous weather outlook, Jul 11, 10:24 AM MDT, 11 hours 35 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE CHEYENNE WY 1024 AM MDT FRI JUL 11 2014 WYZ104-105-109>116-121100- FERRIS/SEMINOE/SHIRLEY MOUNTAINS-SHIRLEY BASIN- 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- 1024 AM MDT FRI JUL 11 2014 THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH CENTRAL WYOMING AND SOUTHEAST WYOMING. .DAY ONE...TODAY AND TONIGHT SCATTERED MAINLY AFTERNOON AND EVENING THUNDERSTORMS WILL DEVELOP. SEVERE THUNDERSTORMS ARE NOT EXPECTED...HOWEVER A FEW STRONGER STORMS MAY PRODUCE LOCALLY HEAVY RAINFALL...SMALL HAIL AND GUSTY WINDS. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY ISOLATED TO SCATTERED MAINLY AFTERNOON AND EVENING THUNDERSTORMS ARE EXPECTED SATURDAY THROUGH WEDNESDAY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE REQUIRED TODAY AND TONIGHT. && 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-WYZ101>103-106>108-117>119- 121100- DAWES-BOX BUTTE-SCOTTS BLUFF-BANNER-MORRILL-KIMBALL-CHEYENNE- NORTH SIOUX-SOUTH SIOUX-CONVERSE COUNTY LOWER ELEVATIONS- NIOBRARA COUNTY-NORTH LARAMIE RANGE- CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY- EAST PLATTE COUNTY-GOSHEN COUNTY-SOUTH LARAMIE RANGE FOOTHILLS- CENTRAL LARAMIE COUNTY-EAST LARAMIE COUNTY- 1024 AM MDT FRI JUL 11 2014 THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE WESTERN NEBRASKA PANHANDLE...SOUTHEAST WYOMING. .DAY ONE...TODAY AND TONIGHT SCATTERED MAINLY AFTERNOON AND EVENING THUNDERSTORMS WILL DEVELOP. SOME OF THE STORMS MAY BECOME STRONG TO SEVERE THIS AFTERNOON INTO EARLY THIS EVENING WITH HAIL AND STRONG WINDS THE MAIN THREAT. OTHERWISE LOCALLY HEAVY RAINFALL IS POSSIBLE. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY ISOLATED TO SCATTERED MAINLY AFTERNOON AND EVENING THUNDERSTORMS ARE EXPECTED MAINLY SATURDAY...SUNDAY...AND WEDNESDAY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED TODAY AND TONIGHT. && THIS PRODUCT...ALONG WITH OTHER WEATHER...HYDROLOGIC...AND CLIMATE INFORMATION IS AVAILABLE ON THE WEB AT... HTTP://WEATHER.GOV/CHEYENNE
In the hours before
Local storm report, Jul 11, 6:33 PM MDT, 3 hours 26 minutes before
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</html>Special weather statement, Jul 11, 7:02 PM MDT, 2 hours 57 minutes before
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</html>Special weather statement, Jul 11, 7:19 PM MDT, 2 hours 40 minutes before
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</html>Special weather statement, Jul 11, 7:58 PM MDT, 2 hours 1 minute before
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</html>Special weather statement, Jul 11, 9:12 PM MDT, 47 minutes before
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</html>Local storm report, Jul 11, 9:29 PM MDT, 30 minutes before
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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 11, 7:02 PM MDT | Special Weather Statement | CYS | Goshen | 43 min |
| Jul 11, 7:19 PM MDT | Special Weather Statement | CYS | Carbon | 41 min |
| Jul 11, 7:58 PM MDT | Special Weather Statement | CYS | 47 min | |
| Jul 11, 6:18 PM MDT | Areal Flood Advisory | CYS | Cheyenne | 3 hr |
| Jul 11, 9:12 PM MDT | Special Weather Statement | CYS | Scotts Bluff | 48 min |
| Jul 11, 10:09 PM MDT | Areal Flood Warning | CYS | Cheyenne, Kimball | 6 hr |
| Jul 11, 10:55 PM MDT | Special Weather Statement | CYS | Morrill | 50 min |
Nearby
Areal Flood Advisories in Nebraska, 2014Every areal flood advisory in 2014
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.