Alert archive / Nebraska / Special Weather Statements in 2014

Special Weather Statement, NWS Cheyenne, WY

August 8, 2014Banner County, Nebraska

NWS Cheyenne, WY issued this special weather statement at Aug 8, 2014, 3:05 PM MDT for Banner County, Nebraska. It was in force for 25 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Aug 8, 2014, 3:05 PM MDT (21:05 UTC)
Expired
Aug 8, 2014, 3:30 PM MDT
In force
25 min
Issued by
NWS Cheyenne, WY

County Banner County, NE

The nearest sounding before it

Denver, CO (KDEN), launched 12:00Z, 9.1 hours before the alert went out and 195 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.

Skew-T log-pSkew-T log-p diagram, Denver, CO at 12:00Z on 2014-08-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 76 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Denver, CO at 12:00Z on 2014-08-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 34 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
76 J/kg
Mixed-layer CIN
-222 J/kg
Mixed-layer LCL
1831 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
34 m²/s²
0-3 km storm-relative helicity
-6 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Aug 8, 12:06 PM MDT, 2 hours 59 minutes earlier.

Area forecast discussion, Aug 8, 12:06 PM MDT, 2 hours 59 minutes before
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Hazardous weather outlook, Aug 8, 11:33 AM MDT, 3 hours 32 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHEYENNE WY
1133 AM MDT FRI AUG 8 2014

WYZ103>106-109>117-091745-
NORTH LARAMIE RANGE-FERRIS/SEMINOE/SHIRLEY MOUNTAINS-
SHIRLEY BASIN-CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE 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-
1133 AM MDT FRI AUG 8 2014

THIS HAZARDOUS WEATHER OUTLOOK IS FOR EAST CENTRAL WYOMING...
SOUTH CENTRAL WYOMING AND SOUTHEAST WYOMING.

.DAY ONE...THIS AFTERNOON AND TONIGHT

ISOLATED TO SCATTERED SHOWERS AND STORMS ARE EXPECTED FOR AREAS
WEST OF THE LARAMIE RANGE THIS AFTERNOON AND EVENING. SEVERE
WEATHER IS NOT EXPECTED.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

AFTERNOON AND EVENING THUNDERSTORMS WILL BE POSSIBLE EACH DAY
THROUGH AT LEAST THE WEEKEND. WIDESPREAD SEVERE WEATHER IS NOT
EXPECTED.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED 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-WYZ101-102-107-108-118-119-
091745-
DAWES-BOX BUTTE-SCOTTS BLUFF-BANNER-MORRILL-KIMBALL-CHEYENNE-
NORTH SIOUX-SOUTH SIOUX-CONVERSE COUNTY LOWER ELEVATIONS-
NIOBRARA COUNTY-EAST PLATTE COUNTY-GOSHEN COUNTY-
CENTRAL LARAMIE COUNTY-EAST LARAMIE COUNTY-
1133 AM MDT FRI AUG 8 2014

THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE WESTERN NEBRASKA
PANHANDLE...SOUTHEAST WYOMING.

.DAY ONE...THIS AFTERNOON AND TONIGHT

SCATTERED SHOWERS AND THUNDERSTORMS ARE EXPECTED ALONG AND EAST
OF THE LARAMIE RANGE THIS AFTERNOON AND EVENING. WIDESPREAD SEVERE
WEATHER IS NOT EXPECTED. HOWEVER...A FEW STORMS COULD BECOME
STRONG TO LOCALLY SEVERE OVER THE WESTERN NEBRASKA PANHANDLE WITH
HAIL AND GUSTY WIND.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

AFTERNOON AND EVENING THUNDERSTORMS WILL BE POSSIBLE EACH DAY
THROUGH AT LEAST THE WEEKEND. A FEW STRONG TO SEVERE STORMS ARE
POSSIBLE OVER THE WESTERN NEBRASKA PANHANDLE ON SATURDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTERS ARE ENCOURAGED TO REPORT HAIL OR STRONG WINDS TO THE
NATIONAL WEATHER SERVICE IN CHEYENNE LATER TODAY.

&&

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, Aug 8, 2:56 PM MDT, 9 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHEYENNE WY
256 PM MDT FRI AUG 08 2014

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0240 PM     HAIL             10 NNE RATTLESNAKE HILL 42.20N 103.66W
08/08/2014  M1.00 INCH       SIOUX              NE   BROADCAST MEDIA

            NICKEL TO QUARTER SIZE HAIL COVERED THE GROUND ALONG
            HIGHWAY 71

&&

MAZUR
Special weather statement, Aug 8, 2:57 PM MDT, 8 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHEYENNE WY
257 PM MDT FRI AUG 8 2014

WYZ119-082130-
EAST LARAMIE COUNTY WY-
257 PM MDT FRI AUG 8 2014

...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN LARAMIE COUNTY UNTIL
330 PM MDT...

AT 256 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A
STRONG THUNDERSTORM NEAR MERIDEN REST AREA...OR 36 MILES NORTHEAST OF
CHEYENNE...MOVING EAST AT 20 MPH.

HAIL UP TO ONE-HALF INCH IN DIAMETER AND WIND GUSTS UP TO 40 MPH ARE
EXPECTED WITH THIS STORM...ALONG WITH FREQUENT DANGEROUS LIGHTNING.

LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...
  ALBIN...

&&

LAT...LON 4156 10407 4138 10406 4145 10433 4156 10435
TIME...MOT...LOC 2056Z 276DEG 19KT 4150 10425
Special weather statement, Aug 8, 3:05 PM MDT, 0 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHEYENNE WY
305 PM MDT FRI AUG 8 2014

NEZ020-WYZ119-082130-
BANNER NE-EAST LARAMIE COUNTY WY-
305 PM MDT FRI AUG 8 2014

...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN LARAMIE AND
SOUTHWESTERN BANNER COUNTIES UNTIL 330 PM MDT...

AT 304 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS STILL
TRACKING A STRONG THUNDERSTORM 6 MILES EAST OF MERIDEN REST
AREA...OR 34 MILES NORTHWEST OF KIMBALL...MOVING EAST AT 25 MPH.

THE STORM HAS STRENGTHENED OVER THE PAST FEW MINUTES...AND IS NOW
LIKELY PRODUCING HAIL UP TO THE SIZE OF NICKELS AND WIND GUSTS UP TO
50 MPH...ALONG WITH FREQUENT DANGEROUS LIGHTNING STRIKES.

LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...
MAINLY RURAL AREAS OF EXTREME NORTHEASTERN LARAMIE AND WESTERN BANNER
COUNTIES.

&&

LAT...LON 4157 10386 4140 10387 4145 10433 4156 10435
TIME...MOT...LOC 2104Z 271DEG 20KT 4151 10418

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 8, 4:55 PM MDTSpecial Weather StatementCYSNiobrara50 min
Aug 7, 6:22 PM MDTSpecial Weather StatementCYSBanner38 min
Aug 8, 2:57 PM MDTSpecial Weather StatementCYSBanner33 min
Aug 8, 3:21 PM MDTSpecial Weather StatementCYSBox Butte54 min
Aug 8, 3:36 PM MDTSevere Thunderstorm WarningCYSBox Butte, Morrill39 min
Aug 8, 3:41 PM MDTSpecial Weather StatementCYSKimball49 min
Aug 8, 3:57 PM MDTSpecial Weather StatementCYSKimball63 min
Aug 8, 5:16 PM MDTSpecial Weather StatementCYSCheyenne44 min
Aug 8, 5:50 PM MDTSpecial Weather StatementCYSSioux40 min

Nearby

Special Weather Statements in Nebraska, 2014Every special weather statement 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.