Alert archive / Nebraska / Severe Thunderstorm Warnings in 2015

Severe Thunderstorm Warning 152, NWS Cheyenne, WY

July 5, 2015Dawes County, Sioux County, Nebraska

NWS Cheyenne, WY issued this severe thunderstorm warning at Jul 5, 2015, 4:38 PM MDT for Dawes County, Sioux County, Nebraska. It was in force for 24 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: Jul 5, 2015, 4:38 PM MDT (22:38 UTC)
Expired: Jul 5, 2015, 5:02 PM MDT
In force: 24 min
Issued by: NWS Cheyenne, WY
Area: Storm-based polygon
Hail: 1.75 in
Wind: 60.0 mph

Counties Dawes County, NE, Sioux County, NE

The radar

The Rapid City radar (KUDX), 181 km from the middle of the area, began a volume at 22:40 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.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jul 5, 3:51 PM MDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Rapid City, SD (KRAP), launched 12:00Z, 10.6 hours before the alert went out and 174 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: 357 J/kg
Mixed-layer CIN: -280 J/kg
Mixed-layer LCL: 2268 m above ground
0-6 km bulk shear: 31 kt
0-1 km storm-relative helicity: 1 m²/s²
0-3 km storm-relative helicity: 34 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -0.1

Open this sounding in Storm Lab

The text

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

142 
WUUS55 KCYS 052238
SVRCYS
NEC045-165-052330-
/O.NEW.KCYS.SV.W.0152.150705T2238Z-150705T2330Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE CHEYENNE WY
438 PM MDT SUN JUL 5 2015

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A

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

* UNTIL 530 PM MDT

* AT 437 PM MDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR FORT
  ROBINSON CAMPGROUND...OR 31 MILES WEST OF CHADRON...MOVING
  SOUTHEAST AT 20 MPH.

  HAZARD...GOLF BALL SIZE HAIL AND 60 MPH WIND GUSTS. 

  SOURCE...RADAR INDICATED. 

  IMPACT...PEOPLE AND ANIMALS OUTDOORS WILL BE INJURED. EXPECT HAIL 
           DAMAGE TO ROOFS...SIDING...WINDOWS AND VEHICLES. EXPECT 
           WIND DAMAGE TO ROOFS...SIDING AND TREES. 

* LOCATIONS IMPACTED INCLUDE...
  CRAWFORD...FORT ROBINSON CAMPGROUND AND FORT ROBINSON. 

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 4243 10333 4244 10345 4263 10368 4276 10357
      4264 10312
TIME...MOT...LOC 2237Z 302DEG 17KT 4267 10358 

HAIL...1.75IN
WIND...60MPH

$$

HAMMER

1 follow-up statement

042 
WWUS55 KCYS 052302
SVSCYS

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHEYENNE WY
502 PM MDT SUN JUL 5 2015

NEC045-165-052312-
/O.CAN.KCYS.SV.W.0152.000000T0000Z-150705T2330Z/
SIOUX NE-DAWES NE-
502 PM MDT SUN JUL 5 2015

...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL SIOUX AND
SOUTHWESTERN DAWES COUNTIES IS CANCELLED...
                
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSE AN IMMEDIATE THREAT TO LIFE OR PROPERTY. 
THEREFORE THE WARNING HAS BEEN CANCELLED. HOWEVER HEAVY RAIN IS 
STILL POSSIBLE WITH THIS THUNDERSTORM.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1100 PM MDT FOR
CENTRAL NEBRASKA.

TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT
AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
CHEYENNE.

LAT...LON 4243 10333 4244 10345 4263 10368 4276 10357
      4264 10312
TIME...MOT...LOC 2259Z 302DEG 17KT 4261 10344 

$$

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 Jul 5, 4:36 PM MDT, 2 minutes earlier.

Area forecast discussion, Jul 5, 4:36 PM MDT, 2 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE CHEYENNE WY
436 PM MDT SUN JUL 5 2015

.SHORT TERM...(THIS EVENING THROUGH TUESDAY NIGHT)
ISSUED AT 436 PM MDT SUN JUL 5 2015

CONVECTION HAS REALLY INCREASED THROUGH THE EARLY AFTN OVER
ALBANY/LARAMIE COUNTIES AND PORTIONS OF THE SOUTHERN PANHANDLE.
THIS DEVELOPMENT IS OCCURRING IN ADVANCE OF A WEAK SHORTWAVE LOCATED
OVER WESTERN COLORADO/WYOMING.  THE STORMS OVER LARAMIE COUNTY HAVE
BEEN HEAVY RAIN PRODUCERS WITH A FEW LOCATIONS SHOWING RADAR DERIVED
AMOUNTS OF ONE TO THREE INCHES.  PLENTIFUL MONSOONAL MOISTURE IS
MOVING NORTHEASTWARD INTO THE CWA WITH PW VALUES ABOVE 1.25 INCHES
ACROSS THE PLAINS.  IT APPEARS THAT THE RAIN IS BECOMING MORE
STRATIFORM THOUGH OVER SOUTHEAST WYOMING BEHIND THE COLD FRONT WHICH
SHOULD REDUCE THE HEAVY RAIN/FLASH FLOOD THREAT THROUGH THE
REMAINDER OF THE EVENING.  THE POTENTIAL EXISTS FOR STRONG TO SVR
STORMS TO DEVELOP OVER MAINLY THE FAR PANHANDLE THROUGH THIS
EVENING. SPC MESOANALYSIS SHOWS GOOD INSTABILITY (MLCAPES OF 2000-
2500 J/KG) IN NORTHERN SIOUX AND DAWES COUNTIES WITH BULK SHEAR OF
30 KTS.  THERE IS LESS INSTABILITY TO THE SOUTH ALONG INTERSTATE 80.
A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 11 PM FOR ZONES ALONG
THE EASTERN CWA BORDER IN THE PANHANDLE.  SHORTWAVE TROUGH WILL PASS
EASTWARD INTO WESTERN NEBRASKA BY LATER TONIGHT WITH THE FRONT
PASSING OVER THE ENTIRE CWA.  WILL KEEP 50-70 PERCENT POPS GOING
THROUGH MUCH OF THE NIGHT...BUT AGAIN THE RAIN SHOULD BE MORE
STRATIFORM IN NATURE.

MUCH COOLER ON MONDAY IN THE POST FRONTAL AIRMASS.  SCATTERED
SHOWERS COULD CONTINUE INTO MID MORNING ACROSS SOUTHEAST WY BEFORE
TAPERING OFF.  INSTABILITY WILL BE MUCH LESS THAN PREVIOUS DAYS WITH
THE BEST CHANCE OF THUNDER CONFINED TO AREAS ALONG AND WEST OF THE
LARAMIE RANGE.  CONVECTION BECOMES MORE WIDESPREAD ONCE AGAIN ON
TUES ESPECIALLY OVER SOUTHEAST WYOMING.  CAPE DOES INCREASE TO
AROUND 1000 J/KG ALONG THE LARAMIE RANGE BY THE AFTN BUT DROPS OFF
QUICKLY ACROSS THE PLAINS. GET SOME WARMING ON TUES...HOWEVER TEMPS
WILL STILL BE ABOUT 10 DEGREES BELOW NORMAL.

.LONG TERM...(WEDNESDAY THROUGH SUNDAY)
ISSUED AT 436 PM MDT SUN JUL 5 2015

UNSETTLED AND WARMER CONDITIONS WILL CONTINUE THROUGH THE END OF
THE WEEK AS MOIST SOUTHWEST FLOW REMAINS OVER THE FORECAST AREA.
TEMPERATURES WILL WARM FROM THE 60S AND 70S ON WEDNESDAY BACK INTO
THE UPPER 70S TO LOW 90S FROM WEST TO EAST BY FRIDAY. A FEW PIECES
OF ENERGY WILL MOVE OVERHEAD ON WEDNESDAY...AND WITH PLENTIFUL
MOISTURE IN PLACE THROUGH THE ATMOSPHERIC COLUMN COMBINING WILL
DECENT LLVL UPSLOPE FLOW...SHOULD SEE A GOOD CHANCE FOR SHOWERS
AND THUNDERSTORMS THROUGH THE DAY. DEEP LAYER SHEAR CONTINUES TO
LOOK FAVORABLE FOR A FEW STRONGER STORMS ON WEDNESDAY
AFTERNOON/EVENING SO WILL KEEP MENTION FOR THAT POSSIBILITY IN THE
FORECAST. THURSDAY WILL BE QUITE SIMILAR...HOWEVER INCREASING
TEMPERATURES ALOFT WILL DIMINISH COVERAGE FOR SHOWERS AND
THUNDERSTORMS A BIT WITH THE BEST CHANCE EXPECTED OVER THE
MOUNTAINS. CHANCES FOR STRONG STORMS WILL BE LESS AS WELL. MODELS
ARE CONSISTENT WITH SHOWING THE UPPER LOW OVER CALIFORNIA
BECOMING AN OPEN WAVE AS IT MOVES NORTHEAST ACROSS THE GREAT
BASIN. GFS CONTINUES TO BE THE WETTER SOLUTION VS THE ECMWF ON
FRIDAY...BUT BOTH MODELS SHOW AFTERNOON CONVECTION DEVELOPING IN
THE MOUNTAINS. THE WETTER GFS CARRIES THE CONVECTION EAST IN THE
EVENING WHILE THE DRIER ECMWF KEEPS THE EASTERN ZONES DRY. WILL
KEEP SLIGHT CHANCE POPS IN FOR FRIDAY EVENING UNTIL MODELS BECOME
MORE CONSISTENT. FOR SATURDAY...BOTH MODELS BUILD A STRONG UPPER
LEVEL HIGH PRESSURE CENTER INTO THE SOUTHERN PLAINS...WITH THE
ECMWF BUILDING THAT RIDGE UP INTO THE ROCKIES AS WELL. THE GFS IS
STARTING TO TREND THAT WAY...BUT STILL SWEEPS A BIT MORE MIDLEVEL
ENERGY ACROSS OUR AREA IN THE EVENING. MAINTAINED A SLIGHT CHANCE
FOR T-STORMS OVER THE MOUNTAINS TO ACCOUNT FOR MODEL
DIFFERENCES...BUT LEFT REMAINING AREAS DRY.

&&

.AVIATION...(FOR THE 18Z TAFS THROUGH 18Z MONDAY AFTERNOON)
ISSUED AT 1220 PM MDT SUN JUL 5 2015

SHOWERS AND THUNDERSTORMS ARE DEVELOPING ALONG THE CO/WY BORDER AT
18Z AND WILL MOVE TO THE NORTHEAST OVER THE NEXT FEW HOURS. THE
COLD FRONT IS STEADILY MOVING SOUTH ACROSS CENTRAL WYOMING AND
SOUTH DAKOTA...AND WILL INITIATE SHOWERS AND STORMS AS IT MOVES
SOUTH ACROSS OUR FORECAST AREA THROUGH THE AFTERNOON. MVFR
CONDITIONS ARE LIKELY IN THE HEAVIER STORMS LATE THIS AFTERNOON
AND EVENING...WITH STRATUS DEVELOPING OVERNIGHT BRINGING THE
POSSIBILITY OF IFR CONDITIONS ALONG THE CHEYENNE RIDGE. RAIN WILL
CONTINUE AT TIMES OVERNIGHT AS WELL AS A WEATHER DISTURBANCE MOVES
OVERHEAD. CONDITIONS SHOULD IMPROVE MID MORNING MONDAY.

&&

.FIRE WEATHER...
ISSUED AT 436 PM MDT SUN JUL 5 2015

NO FIRE WEATHER CONCERNS THROUGH THE MIDDLE OF NEXT WEEK.
WIDESPREAD WETTING RAINS WILL OCCUR THROUGH TONIGHT OVER MUCH OF THE
REGION.  A COLD FRONT WILL BRING MUCH COOLER TEMPERATURES ON MONDAY.
 MINIMUM AFTERNOON HUMIDITY VALUES WILL GENERALLY BE ABOVE 40
PERCENT THROUGH WEDNESDAY.  THERE WILL BE A CHANCE OF AFTERNOON AND
EVENING SHOWERS AND THUNDERSTORMS EACH DAY THROUGH THE MIDDLE OF THE
NEXT WEEK.

&&

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

SHORT TERM...ZF
LONG TERM...RJM
AVIATION...RJM
FIRE WEATHER...ZF

Hazardous weather outlook, Jul 5, 4:09 PM MDT, 29 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHEYENNE WY
409 PM MDT SUN JUL 5 2015

WYZ101>119-062215-
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-
409 PM MDT SUN JUL 5 2015

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

.DAY ONE...THIS AFTERNOON AND TONIGHT

NUMEROUS SHOWERS AND THUNDERSTORMS WILL CONTINUE THROUGH THE
EVENING. HEAVY RAIN WILL BE THE MAIN THREAT WITH THESE STORMS
ACROSS SOUTHEAST WYOMING.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

MUCH COOLER TEMPERATURES ARE EXPECTED ON MONDAY WHICH MAY LIMIT
THUNDERSTORM ACTIVITY. HOWEVER....THUNDERSTORMS WILL BECOME MORE
NUMEROUS BY TUESDAY AND WEDNESDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE REQUIRED THROUGH TONIGHT.

NEZ002-003-019>021-054-055-095-096-062215-
DAWES-BOX BUTTE-SCOTTS BLUFF-BANNER-MORRILL-KIMBALL-CHEYENNE-
NORTH SIOUX-SOUTH SIOUX-
409 PM MDT SUN JUL 5 2015

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF WESTERN
NEBRASKA.

.DAY ONE...THIS AFTERNOON AND TONIGHT

SCATTERED THUNDERSTORMS WILL BE POSSIBLE THROUGH THE EVENING. SOME
OF THE STORMS COULD BECOME SEVERE WITH LARGE HAIL AND DAMAGING
WINDS ALONG WITH HEAVY RAIN. A SEVERE THUNDERSTORM WATCH IS IN
EFFECT UNTIL 11 PM FOR DAWES...BOX BUTTE...MORRILL...AND CHEYENNE
COUNTIES.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

MUCH COOLER TEMPERATURES ARE EXPECTED ON MONDAY WHICH MAY LIMIT
THUNDERSTORM ACTIVITY. HOWEVER....THUNDERSTORMS WILL BECOME MORE
NUMEROUS BY TUESDAY AND WEDNESDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION COULD BE REQUIRED ACROSS THE WESTERN NEBRASKA
PANHANDLE. PLEASE SEND SEVERE THUNDERSTORM REPORTS TO THE NATIONAL
WEATHER SERVICE IN CHEYENNE.

In the hours before

Special weather statement, Jul 5, 2:55 PM MDT, 1 hour 43 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHEYENNE WY
255 PM MDT SUN JUL 5 2015

NEZ054-052145-
KIMBALL NE-
255 PM MDT SUN JUL 5 2015

...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN KIMBALL COUNTY UNTIL
345 PM MDT...

AT 255 PM MDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR
OLIVER CAMPGROUND...OR 14 MILES WEST OF KIMBALL...MOVING NORTHEAST AT
20 MPH.

NICKEL SIZE HAIL AND WINDS IN EXCESS OF 40 MPH WILL BE POSSIBLE WITH
THIS STORM.

LOCATIONS IMPACTED INCLUDE...
OLIVER RESERVOIR...OLIVER CAMPGROUND AND BUSHNELL.

THIS INCLUDES INTERSTATE 80 IN NEBRASKA BETWEEN MILE MARKERS 3 AND
11.

THIS STORM MAY INTENSIFY...SO BE CERTAIN TO MONITOR LOCAL RADIO AND
TV STATIONS...AS WELL AS LOCAL CABLE TV OUTLETS...FOR ADDITIONAL
INFORMATION AND POSSIBLE WARNINGS FROM THE NATIONAL WEATHER SERVICE.

LAT...LON 4122 10404 4127 10404 4139 10393 4139 10365
      4133 10356 4114 10395
TIME...MOT...LOC 2055Z 231DEG 16KT 4123 10394

HAMMER

Special weather statement, Jul 5, 3:53 PM MDT, 45 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHEYENNE WY
353 PM MDT SUN JUL 5 2015

NEZ095-052230-
NORTH SIOUX NE-
353 PM MDT SUN JUL 5 2015

...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN SIOUX COUNTY UNTIL
430 PM MDT...

AT 353 PM MDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR
MONTROSE...OR 31 MILES SOUTH OF EDGEMONT...MOVING SOUTHEAST AT 20
MPH.

NICKEL SIZE HAIL AND WINDS IN EXCESS OF 40 MPH WILL BE POSSIBLE WITH
THIS STORM.

THIS STORM WILL REMAIN OVER MAINLY RURAL AREAS OF NORTHEASTERN SIOUX
COUNTY.

THIS STORM MAY INTENSIFY...SO BE CERTAIN TO MONITOR LOCAL RADIO AND
TV STATIONS...AS WELL AS LOCAL CABLE TV OUTLETS...FOR ADDITIONAL
INFORMATION AND POSSIBLE WARNINGS FROM THE NATIONAL WEATHER SERVICE.

LAT...LON 4284 10384 4290 10368 4275 10350 4265 10372
TIME...MOT...LOC 2153Z 324DEG 16KT 4285 10374

HAMMER

Special weather statement, Jul 5, 4:05 PM MDT, 33 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHEYENNE WY
405 PM MDT SUN JUL 5 2015

NEZ019-020-052245-
SCOTTS BLUFF NE-BANNER NE-
405 PM MDT SUN JUL 5 2015

...SIGNIFICANT WEATHER ADVISORY FOR NORTH CENTRAL BANNER AND SCOTTS
BLUFF COUNTIES UNTIL 445 PM MDT...

AT 405 PM MDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR
HUBBARD HILL...OR 11 MILES SOUTHWEST OF SCOTTSBLUFF...MOVING
NORTHEAST AT 10 MPH.

DIME SIZE HAIL AND WINDS IN EXCESS OF 40 MPH WILL BE POSSIBLE WITH
THIS STORM.

LOCATIONS IMPACTED INCLUDE...
SCOTTSBLUFF...GERING...TERRYTOWN...HUBBARD HILL AND SCOTTS BLUFF
NATIONAL MONUMENT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

THIS STORM MAY INTENSIFY...SO BE CERTAIN TO MONITOR LOCAL RADIO AND
TV STATIONS...AS WELL AS LOCAL CABLE TV OUTLETS...FOR ADDITIONAL
INFORMATION AND POSSIBLE WARNINGS FROM THE NATIONAL WEATHER SERVICE.

&&

LAT...LON 4166 10386 4177 10394 4198 10372 4176 10350
TIME...MOT...LOC 2205Z 235DEG 11KT 4174 10380

HAMMER

Local storm report, Jul 5, 4:13 PM MDT, 25 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHEYENNE WY
413 PM MDT SUN JUL 05 2015

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

0345 PM     HAIL             15 N BAYARD             41.97N 103.32W
07/05/2015  E1.75 INCH       MORRILL            NE   TRAINED SPOTTER

&&

GCLAYCOM

Local storm report, Jul 5, 4:23 PM MDT, 15 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHEYENNE WY
423 PM MDT SUN JUL 05 2015

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

0340 PM     TSTM WND DMG     21 N BAYARD             42.06N 103.32W
07/05/2015                   BOX BUTTE          NE   TRAINED SPOTTER

            WINDOWS BROKEN OUT OF HOUSE FROM LARGE HAIL. HAIL SIZE
            UNKNOWN.

0410 PM     TSTM WND GST     2 SW ANGORA             41.85N 103.13W
07/05/2015  M54 MPH          MORRILL            NE   STORM CHASER

&&

GCLAYCOM

Special weather statement, Jul 5, 4:32 PM MDT, 6 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHEYENNE WY
432 PM MDT SUN JUL 5 2015

NEZ002-095-052315-
NORTH SIOUX NE-DAWES NE-
432 PM MDT SUN JUL 5 2015

...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN SIOUX AND
SOUTHWESTERN DAWES COUNTIES UNTIL 515 PM MDT...

AT 432 PM MDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR
FORT ROBINSON CAMPGROUND...OR 31 MILES WEST OF CHADRON...MOVING
SOUTHEAST AT 25 MPH.

NICKEL SIZE HAIL AND WINDS IN EXCESS OF 40 MPH WILL BE POSSIBLE WITH
THIS STORM.

LOCATIONS IMPACTED INCLUDE...
CRAWFORD...FORT ROBINSON CAMPGROUND AND FORT ROBINSON.

THIS STORM MAY INTENSIFY...SO BE CERTAIN TO MONITOR LOCAL RADIO AND
TV STATIONS...AS WELL AS LOCAL CABLE TV OUTLETS...FOR ADDITIONAL
INFORMATION AND POSSIBLE WARNINGS FROM THE NATIONAL WEATHER SERVICE.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1100 PM MDT FOR
CENTRAL NEBRASKA.

LAT...LON 4245 10327 4244 10341 4267 10374 4281 10359
      4259 10310
TIME...MOT...LOC 2232Z 307DEG 20KT 4270 10359

HAMMER

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 4, 6:23 PM MDT	Severe Thunderstorm Warning	CYS	Banner, Morrill, Scotts Bluff	52 min
Jul 4, 7:13 PM MDT	Severe Thunderstorm Warning	CYS	Banner, Cheyenne, Kimball, Morrill	47 min
Jul 4, 7:57 PM MDT	Severe Thunderstorm Warning	CYS	Cheyenne	63 min
Jul 5, 2:46 PM MDT	Special Weather Statement	CYS	Box Butte	44 min
Jul 5, 2:55 PM MDT	Special Weather Statement	CYS	Kimball	50 min
Jul 5, 3:22 PM MDT	Severe Thunderstorm Warning	CYS	Box Butte, Morrill	53 min
Jul 5, 3:53 PM MDT	Special Weather Statement	CYS	Sioux	37 min
Jul 5, 4:05 PM MDT	Special Weather Statement	CYS	Scotts Bluff	40 min
Jul 5, 4:32 PM MDT	Special Weather Statement	CYS	Dawes	43 min
Jul 5, 4:44 PM MDT	Areal Flood Advisory	CYS	Scotts Bluff	3 hr
Jul 5, 5:16 PM MDT	Flash Flood Warning	CYS	Scotts Bluff	5 hr
Jul 5, 5:35 PM MDT	Special Weather Statement	CYS	Box Butte	40 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 2015 Every severe thunderstorm warning in 2015

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.