Alert archive / Nebraska / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 152, NWS Cheyenne, WY

August 31, 2014Dawes County, Nebraska

NWS Cheyenne, WY issued this severe thunderstorm warning at Aug 31, 2014, 3:08 PM MDT for Dawes County, Nebraska. It was in force for 52 min. 3 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Aug 31, 2014, 3:08 PM MDT (21:08 UTC)
Expired: Aug 31, 2014, 4:00 PM MDT
In force: 52 min
Issued by: NWS Cheyenne, WY
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Dawes County, NE

The radar

The Rapid City radar (KUDX), 147 km from the middle of the area, began a volume at 21:10 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 was reported inside it

Time	Report	Where	Remark
Aug 31, 3:20 PM MDT	TSTM WND DMG	3 Sw Chadron, NE	LIMBS BEING BLOWN OFF TREES. VERY HEAVY RAIN.
Aug 31, 3:20 PM MDT	HAIL 0.25	1 N Chadron, NE	HAIL COVERING THE GROUND. VERY HEAVY RAINFALL WITH STANDING WATER AT CHADRON AIRPORT.
Aug 31, 3:55 PM MDT	HAIL 0.25	Chadron, NE	PEA SIZE HAIL ALONG WITH LOCALIZED FLOODING.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

Did it verify

Verified. The Iowa Environmental Mesonet's Cow matched one storm report to this severe thunderstorm warning; the first came 12 minutes after it went out.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The nearest sounding before it

Rapid City, SD (KRAP), launched 12:00Z, 9.1 hours before the alert went out and 141 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1977 m above ground
0-6 km bulk shear: 47 kt
0-1 km storm-relative helicity: -51 m²/s²
0-3 km storm-relative helicity: 23 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.

195 
WUUS55 KCYS 312108
SVRCYS
NEC045-312200-
/O.NEW.KCYS.SV.W.0152.140831T2108Z-140831T2200Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE CHEYENNE WY
308 PM MDT SUN AUG 31 2014

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CENTRAL DAWES COUNTY IN THE PANHANDLE OF NEBRASKA...

* UNTIL 400 PM MDT

* AT 304 PM MDT...A SEVERE THUNDERSTORM WAS LOCATED 5 MILES SOUTHWEST
  OF CHADRON AIRPORT...AND MOVING EAST AT 20 MPH.

  HAZARD...60 MPH WIND GUSTS AND QUARTER SIZE HAIL.

  SOURCE...RADAR INDICATED.

  IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT WIND DAMAGE TO
           ROOFS...SIDING AND TREES.

* LOCATIONS IMPACTED INCLUDE...
  CHADRON...CHADRON AIRPORT AND CHADRON CAMPGROUND.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

PREPARE IMMEDIATELY FOR LARGE HAIL AND DAMAGING WINDS. PEOPLE OUTSIDE
SHOULD MOVE TO A SHELTER...INSIDE A STRONG BUILDING AND AWAY FROM
WINDOWS.

TORRENTIAL RAINFALL IS OCCURRING WITH THIS STORM...AND MAY LEAD TO
FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS!

&&

LAT...LON 4270 10329 4288 10331 4294 10278 4293 10278
      4280 10278 4278 10277 4270 10277
TIME...MOT...LOC 2108Z 265DEG 19KT 4280 10316

HAIL...1.00IN
WIND...60MPH

$$

HAMMER

3 follow-up statements

728 
WWUS55 KCYS 312123
SVSCYS

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHEYENNE WY
323 PM MDT SUN AUG 31 2014

NEC045-312200-
/O.CON.KCYS.SV.W.0152.000000T0000Z-140831T2200Z/
DAWES NE-
323 PM MDT SUN AUG 31 2014

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR EAST CENTRAL
DAWES COUNTY UNTIL 400 PM MDT...

AT 319 PM MDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR CHADRON...AND
MOVING EAST AT 25 MPH.

HAZARD...60 MPH WIND GUSTS AND QUARTER SIZE HAIL.

SOURCE...TRAINED WEATHER SPOTTERS. TREE DAMAGE WAS REPORTED 3 MILES 
SOUTHWEST OF CHADRON WITH THIS STORM. 

IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT WIND DAMAGE TO
         ROOFS...SIDING AND TREES.

LOCATIONS IMPACTED INCLUDE...
CHADRON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

PREPARE IMMEDIATELY FOR LARGE HAIL AND DAMAGING WINDS. PEOPLE OUTSIDE
SHOULD MOVE TO A SHELTER...INSIDE A STRONG BUILDING AND AWAY FROM
WINDOWS.

TORRENTIAL RAINFALL IS OCCURRING WITH THIS STORM...AND MAY LEAD TO
FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS!

&&

LAT...LON 4270 10309 4290 10315 4294 10278 4280 10278
      4278 10277 4270 10277
TIME...MOT...LOC 2122Z 264DEG 22KT 4280 10303

HAIL...1.00IN
WIND...60MPH

$$

HAMMER

093 
WWUS55 KCYS 312140
SVSCYS

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHEYENNE WY
340 PM MDT SUN AUG 31 2014

NEC045-312200-
/O.CON.KCYS.SV.W.0152.000000T0000Z-140831T2200Z/
DAWES NE-
340 PM MDT SUN AUG 31 2014

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR EAST CENTRAL
DAWES COUNTY UNTIL 400 PM MDT...

AT 338 PM MDT...A SEVERE THUNDERSTORM WAS LOCATED 8 MILES EAST OF
CHADRON...AND MOVING EAST AT 30 MPH.

HAZARD...60 MPH WIND GUSTS AND QUARTER SIZE HAIL.

SOURCE...RADAR INDICATED.

IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT WIND DAMAGE TO
         ROOFS...SIDING AND TREES.

LOCATIONS IMPACTED INCLUDE...
  MAINLY RURAL AREAS OF EXTREME EASTERN DAWES COUNTY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

PREPARE IMMEDIATELY FOR LARGE HAIL AND DAMAGING WINDS. PEOPLE OUTSIDE
SHOULD MOVE TO A SHELTER...INSIDE A STRONG BUILDING AND AWAY FROM
WINDOWS.

TORRENTIAL RAINFALL IS OCCURRING WITH THIS STORM...AND MAY LEAD TO
FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS!

&&

LAT...LON 4272 10277 4272 10292 4284 10296 4294 10278
      4280 10278 4278 10277
TIME...MOT...LOC 2140Z 264DEG 24KT 4281 10283

HAIL...1.00IN
WIND...60MPH

$$

HAMMER

858 
WWUS55 KCYS 312153
SVSCYS

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHEYENNE WY
353 PM MDT SUN AUG 31 2014

NEC045-312204-
/O.EXP.KCYS.SV.W.0152.000000T0000Z-140831T2200Z/
DAWES NE-
353 PM MDT SUN AUG 31 2014

...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL DAWES COUNTY WILL
EXPIRE AT 400 PM MDT...

THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED
AREA.

LAT...LON 4272 10277 4272 10292 4284 10296 4294 10278
      4280 10278 4278 10277
TIME...MOT...LOC 2154Z 264DEG 24KT 4282 10270

$$

HAMMER

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 Aug 31, 11:56 AM MDT, 3 hours 12 minutes earlier.

Area forecast discussion, Aug 31, 11:56 AM MDT, 3 hours 12 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE CHEYENNE WY
1156 AM MDT SUN AUG 31 2014

.SHORT TERM...(TODAY THROUGH TUESDAY)
ISSUED AT 345 AM MDT SUN AUG 31 2014

CURRENT KCYS RADAR LOOP SHOWS AN AREA OF RAIN SHOWERS AND EMBEDDED
THUNDERSTORMS QUICKLY MOVING EASTWARD ACROSS THE AREA EARLY THIS
MORNING. THIS ACTIVITY IS IN ADVANCE OF AN UPPER LEVEL TROUGH AXIS
MOVING INTO WESTERN WYOMING. 250 MB JET STREAM WINDS WILL CONTINUE
TO INCREASE THIS MORNING OVER 100 KNOTS AS THE SURFACE COLD FRONT
HAS JUST STARTED TO ACCELERATE SOUTHEAST ACROSS THE FORECAST AREA.
EXPECT A COOLER THAN AVERAGE DAY TODAY BEHIND THIS COLD FRONT AS
THE TROUGH AXIS MOVES ACROSS SOUTHEAST WYOMING...RESULTING IN
SURFACE TEMPERATURES IN THE UPPER 60S TO MID 70S ACROSS MOST OF
THE FORECAST AREA. IT WILL BE A LITTLE WARMER FURTHER SOUTH AND
EAST ACROSS THE SOUTHERN NEBRASKA PANHANDLE SINCE THE FRONT WILL
STALL LATER TODAY. SHOWERS AND ISOLATED THUNDERSTORMS ARE EXPECTED
THROUGH TODAY. THE GFS CONTINUES TO BE ON THE DRY SIDE EVEN THOUGH
THE RADAR IMAGERY THIS MORNING HAS BEEN ACTIVE. WITH A STRONG JET
OVERHEAD...BELIEVE MODELS CONTINUE TO DOWNPLAY THE CHANCES FOR
WIDESPREAD SHOWERS TODAY. KEPT POP BETWEEN 40 TO 60 PERCENT FOR
SCATTERED SHOWERS AND ISOLATED THUNDER INTO THIS EVENING. WINDY
CONDITIONS ARE EXPECTED THIS AFTERNOON AFTER FROPA...WITH GUSTS UP
TO 45 MPH POSSIBLE WEST OF THE LARAMIE RANGE. WINDS WILL STRUGGLE
TO REACH 30 MPH OVER THE NEBRASKA PANHANDLE THIS AFTERNOON. SHOWER
ACTIVITY WILL QUICKLY COME TO AND END EARLY THIS EVENING AS DRIER
AND MORE STABLE AIR MOVE INTO THE REGION. SKIES WILL QUICKLY CLEAR
TONIGHT WITH CHILLY OVERNIGHT LOWS IN THE 30S TO MID 40S EXPECTED.

ANOTHER COOL DAY EXPECTED ON MONDAY WITH HIGHS STRUGGLING TO
REACH THE LOW TO MID 70S ACROSS MOST OF THE AREA. MODELS SHOW A
SECONDARY SHORTWAVE QUICKLY PUSHING ACROSS THE AREA...RESULTING IN
SOME RAIN SHOWER ACTIVITY AND MAYBE A FEW LIGHTNING STRIKES.

UPPER LEVEL FLOW BECOMES MORE ZONAL FOR TUESDAY WITH INCREASING
TEMPERATURES INTO THE UPPER 70S TO MID 80S ACROSS THE AREA. DRIER
AIR WILL PUSH INTO THE REGION WITH PW/S LOWERING BELOW ONE HALF
INCH DURING THE DAY.

.LONG TERM...(TUESDAY NIGHT THROUGH SATURDAY)
ISSUED AT 300 AM MDT SUN AUG 31 2014

THE LONG TERM FORECAST WILL START OFF DRY AND BREEZY WEDNESDAY UNDER
ZONAL FLOW ACROSS THE CONUS. DOWNSLOPE FLOW WILL PUSH TEMPERATURES
INTO THE 80S ACROSS SOUTHEAST WYOMING AND 90S INTO THE PANHANDLE. BY
THURSDAY AN UPPER LEVEL TROUGH WILL DIG OVER THE PACIFIC NORTHWEST
WITH SOUTHWEST FLOW KICKING IN ACROSS THE CENTRAL AND NORTHERN
ROCKIES. WILL START TO SEE INCREASING CHANCES FOR SHOWERS AND
THUNDERSTORMS LATE THURSDAY AND THEN INTO THURSDAY NIGHT. THURSDAY
SHOULD BE A BIT COOLER AS MID AND UPPER LEVEL CLOUD COVER LIMITS
DEEPER MIXING.

FORECAST MUCH MORE TRICKY FRIDAY AND SATURDAY AS MODEL SOLUTIONS
DIVERGE. GFS DEVELOPS A SLOW MOVING CLOSE LOW OVER THE WESTERN CONUS
WITH RELATIVELY DRY SOUTHWEST FLOW FOR THE FORECAST AREA. THE ECMWF
ON THE OTHER HAND SHOWS A MORE PROGRESSIVE WAVE SUPPRESSING THE RIDGE
OVER THE ROCKIES FRIDAY AND THEN DEVELOPING NORTHWEST FLOW BY
SATURDAY. IN OTHER WORDS THE ECMWF IS NOT ONLY COOLER BUT WOULD ALSO
SUGGESTS INCREASED PRECIPITATION CHANCES. NOT COMPLETELY CONFIDENT IN
EITHER MODEL BUT LEANING TOWARD THE ECMWF AS OVERALL WEATHER PATTERN
PERSISTENCE GOING ALL THE WAY BACK TO LAST WINTER FAVORS NORTHWEST
FLOW.

&&

.AVIATION...(FOR THE 18Z TAFS THROUGH 18Z MONDAY MORNING)
ISSUED AT 1146 AM MDT SUN AUG 31 2014

SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS WILL BE POSSIBLE
THROUGH THE AFTERNOON. MUCH OF THE ACTIVITY WILL SHIFT EASTWARD
OUT OF SOUTHEAST WY BY LATE AFTERNOON. MODERATE RAIN WILL
ACCOMPANY SOME OF THE STRONGER SHOWERS...WITH BRIEF MVFR VIS
POSSIBLE. WEST TO NORTHWEST WINDS WILL BE BREEZY THROUGH 00Z OVER
MUCH OF SOUTHEAST WY WITH GUSTS TO 30 KTS.

&&

.FIRE WEATHER...
ISSUED AT 244 AM MDT SUN AUG 31 2014

NO FIRE WEATHER CONCERNS THROUGH MONDAY...BUT THEN CONCERN OF NEAR
CRITICAL CONDITIONS INCREASE FOR TUESDAY AND WEDNESDAY. A STRONG
WEATHER DISTURBANCE AND ASSOCIATED COLD FRONT WILL MOVE ACROSS
THE AREA EARLY THIS MORNING. SHOWERS AND TSTORMS WILL CONTINUE
ACROSS SOUTHEAST WYOMING AND WESTERN NEBRASKA TODAY WITH GUSTY
WEST TO SOUTHWEST WINDS. DRIER CONDITIONS WILL DEVELOP BY MIDDLE
OF NEXT WEEK WHILE GUSTY WEST WINDS CONTINUE IN AREAS ALONG AND
WEST OF THE LARAMIE RANGE.

&&

.CYS WATCHES/WARNINGS/ADVISORIES...
WY...NONE.
NE...NONE.
&&

SHORT TERM...TJT
LONG TERM...SML
AVIATION...FINCH
FIRE WEATHER...TJT

Hazardous weather outlook, Aug 31, 5:56 AM MDT, 9 hours 12 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHEYENNE WY
556 AM MDT SUN AUG 31 2014

NEZ002-003-019>021-054-055-095-096-WYZ101>119-011200-
DAWES-BOX BUTTE-SCOTTS BLUFF-BANNER-MORRILL-KIMBALL-CHEYENNE-
NORTH SIOUX-SOUTH SIOUX-CONVERSE COUNTY LOWER ELEVATIONS-
NIOBRARA COUNTY-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-
556 AM MDT SUN AUG 31 2014

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

.DAY ONE...TODAY AND TONIGHT

SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS WILL OCCUR ACROSS
SOUTHEAST WYOMING AND THE NEBRASKA PANHANDLE TODAY. THE POTENTIAL
FOR SEVERE THUNDERSTORMS IS MINIMAL. THE STRONGEST STORMS WILL
OCCUR OVER EAST CENTRAL WYOMING AND INTO THE NORTHERN NEBRASKA
PANHANDLE WHERE GUSTY WINDS AND SMALL HAIL IS POSSIBLE WITH A FEW
STORMS.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW.

.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

In the hours before

Special weather statement, Aug 31, 9:30 AM MDT, 5 hours 38 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHEYENNE WY
930 AM MDT SUN AUG 31 2014

NEZ054-WYZ118-119-311700-
KIMBALL-CENTRAL LARAMIE COUNTY-EAST LARAMIE COUNTY-
INCLUDING THE CITIES OF...KIMBALL...CHEYENNE...BURNS...
CARPENTER...ALBIN...PINE BLUFFS
930 AM MDT SUN AUG 31 2014

A LINE OF SHOWERS WITH A FEW EMBEDDED THUNDERSTORMS WILL CONTINUE
TO MOVE EAST THROUGH LARAMIE AND KIMBALL COUNTIES THROUGH 11 AM.
THIS INCLUDES THE INTERSTATE 80 CORRIDOR BETWEEN CHEYENNE AND
KIMBALL. LIGHT TO BRIEF MODERATE RAIN AND WIND GUSTS UP TO 50 MPH
WILL OCCUR WITH THIS ACTIVITY.

Special weather statement, Aug 31, 12:36 PM MDT, 2 hours 32 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHEYENNE WY
1236 PM MDT SUN AUG 31 2014

WYZ118-119-311945-
CENTRAL LARAMIE COUNTY-EAST LARAMIE COUNTY-
INCLUDING THE CITIES OF...CHEYENNE...BURNS...CARPENTER...ALBIN...
PINE BLUFFS
1236 PM MDT SUN AUG 31 2014

AT 1230 PM...A LINE OF SHOWERS MOVING ACROSS INTERSTATE 25 WILL
CONTINUE TO MOVE EAST THROUGH LARAMIE COUNTY OVER THE NEXT HOUR.
THIS LINE WILL TRACK ALONG THE INTERSTATE 80 CORRIDOR FROM
CHEYENNE TO PINE BLUFFS. LIGHT RAINFALL OF A FEW HUNDREDTHS OF AN
INCH AND WIND GUSTS UP TO 45 MPH WILL OCCUR WITH THIS ACTIVITY.

Special weather statement, Aug 31, 1:27 PM MDT, 1 hour 41 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHEYENNE WY
127 PM MDT SUN AUG 31 2014

NEZ020-021-054-055-312100-
BANNER-MORRILL-KIMBALL-CHEYENNE-
INCLUDING THE CITIES OF...HARRISBURG...BRIDGEPORT...BAYARD...
KIMBALL...SIDNEY
127 PM MDT SUN AUG 31 2014

AT 125 PM...A LINE OF SHOWERS MOVING THROUGH WESTERN PORTIONS OF
KIMBALL AND BANNER COUNTIES IN THE SOUTHERN NEBRASKA
PANHANDLE WILL CONTINUE TO MOVE EAST AT 30 MPH. THIS
ACTIVITY WILL BRING LIGHT RAIN AND GUSTY WEST WINDS UP TO 45 MPH
TO EASTERN PORTIONS OF KIMBALL AND BANNER COUNTY...IN ADDITION TO
CHEYENNE AND MORRILL COUNTIES THROUGH 3 PM. THIS INCLUDES THE
INTERSTATE 80 CORRIDOR FROM KIMBALL TO SIDNEY.

Special weather statement, Aug 31, 1:33 PM MDT, 1 hour 35 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHEYENNE WY
133 PM MDT SUN AUG 31 2014

NEZ020-021-054-055-312100-
BANNER-MORRILL-KIMBALL-CHEYENNE-
INCLUDING THE CITIES OF...HARRISBURG...BRIDGEPORT...BAYARD...
KIMBALL...SIDNEY
133 PM MDT SUN AUG 31 2014

AT 125 PM...A LINE OF SHOWERS MOVING THROUGH WESTERN PORTIONS OF
KIMBALL AND BANNER COUNTIES IN THE SOUTHERN NEBRASKA
PANHANDLE WILL CONTINUE TO MOVE EAST AT 30 MPH. THIS
ACTIVITY WILL BRING LIGHT RAIN AND GUSTY WEST WINDS UP TO 50 MPH
TO EASTERN PORTIONS OF KIMBALL AND BANNER COUNTY...IN ADDITION TO
CHEYENNE AND MORRILL COUNTIES THROUGH 3 PM. THIS INCLUDES THE
INTERSTATE 80 CORRIDOR FROM KIMBALL TO SIDNEY.

Special weather statement, Aug 31, 1:55 PM MDT, 1 hour 13 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHEYENNE WY
155 PM MDT SUN AUG 31 2014

WYZ102-312045-
NIOBRARA COUNTY WY-
155 PM MDT SUN AUG 31 2014

...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN NIOBRARA COUNTY
UNTIL 245 PM MDT...

AT 152 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A
STRONG THUNDERSTORM 17 MILES NORTHWEST OF MULE CREEK JUNCTION...OR 37
MILES WEST OF EDGEMONT...MOVING EAST AT 30 MPH.

HAIL UP TO ONE-HALF INCH IN DIAMETER AND WIND GUSTS UP TO 50 MPH ARE
EXPECTED WITH THIS STORM.

LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...
MAINLY RURAL AREAS OF EXTREME NORTHEASTERN NIOBRARA COUNTY.

IF THREATENING WEATHER APPROACHES YOUR AREA...TAKE SHELTER IN A
STURDY BUILDING.

&&

LAT...LON 4350 10404 4342 10405 4343 10463 4351 10463
      4351 10406
TIME...MOT...LOC 1955Z 263DEG 24KT 4348 10449

MAZUR

Special weather statement, Aug 31, 2:45 PM MDT, 23 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHEYENNE WY
245 PM MDT SUN AUG 31 2014

NEZ002-312130-
DAWES NE-
245 PM MDT SUN AUG 31 2014

...SIGNIFICANT WEATHER ADVISORY FOR NORTHERN DAWES COUNTY UNTIL 330
PM MDT...

AT 242 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A
STRONG THUNDERSTORM NEAR WHITNEY LAKE...OR 19 MILES WEST OF
CHADRON...MOVING EAST AT 25 MPH.

HAIL UP TO ONE-HALF INCH IN DIAMETER AND WIND GUSTS UP TO 50 MPH ARE
EXPECTED WITH THIS STORM...ALONG WITH HEAVY RAIN.

LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...
  CHADRON...
  WHITNEY LAKE...
  CHADRON AIRPORT...
  WHITNEY...

IF THREATENING WEATHER APPROACHES YOUR AREA...TAKE SHELTER IN A
STURDY BUILDING.

TORRENTIAL RAIN...WHICH MAY FLOOD LOW LYING AREAS SUCH AS DITCHES AND
UNDERPASSES...IS ALSO LIKELY. DO NOT DRIVE YOUR VEHICLE ON A FLOODED
ROADWAY.

&&

LAT...LON 4271 10346 4289 10351 4301 10316 4301 10285
      4274 10285
TIME...MOT...LOC 2045Z 259DEG 25KT 4282 10335

HAMMER

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 30, 6:00 PM MDT	Special Weather Statement	CYS	Dawes	30 min
Aug 30, 6:33 PM MDT	Special Weather Statement	CYS	Dawes	27 min
Aug 31, 2:45 PM MDT	Special Weather Statement	CYS	Dawes	45 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 2014 Every severe thunderstorm warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.