Severe Thunderstorm Warning 249, NWS North Platte, NE

000 
WWUS53 KLBF 140137
SVSLBF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
737 PM MDT MON JUL 13 2009

NEC005-069-075-101-140200-
/O.CON.KLBF.SV.W.0249.000000T0000Z-090714T0200Z/
ARTHUR NE-GARDEN NE-GRANT NE-KEITH NE-
737 PM MDT MON JUL 13 2009

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 800 PM MDT
FOR NORTHWESTERN KEITH...SOUTHERN GRANT...EAST CENTRAL GARDEN AND
ARTHUR COUNTIES...

AT 735 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING
WINDS IN EXCESS OF 60 MPH.  THESE STORMS WERE LOCATED ALONG A LINE
EXTENDING FROM SWEDE LAKE TO HAYTHORN LAKE TO 9 MILES WEST OF HIGHWAY
61 MILE MARKER 110...OR ALONG A LINE EXTENDING FROM 22 MILES
NORTHWEST OF ARTHUR TO ARTHUR TO 18 MILES SOUTHWEST OF ARTHUR...
MOVING EAST AT 45 MPH.

SEVERE THUNDERSTORMS WILL BE NEAR...
  HIGHWAY 61 MILE MARKER 150...SAND PUDDIN LAKE AND HIGHWAY 61 MILE
  MARKER 110 BY 745 PM MDT...
  SPRING VALLEY LAKE...GREEN LAKE AND HIGHWAY 92 MILE MARKER 170 BY
  750 PM MDT...
  PRATT LAKE AND THREE MILE LAKE BY 755 PM MDT...
  BUCKTAIL LAKE BY 800 PM MDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS STORM HAS A HISTORY OF PRODUCING DESTRUCTIVE WINDS OF AT LEAST 
60 MPH. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY 
FROM WINDOWS

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1100 PM MDT
MONDAY EVENING FOR WESTERN NEBRASKA.

&&

LAT...LON 4155 10206 4190 10213 4194 10145 4158 10140
      4136 10147 4137 10213
TIME...MOT...LOC 0137Z 259DEG 39KT 4186 10185 4158 10172
          4138 10188

$$

13

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORTH PLATTE NE
338 PM CDT MON JUL 13 2009

.DISCUSSION...
ANOTHER ACTIVE DAY IS INSTORE FOR THE FORECAST AREA. SURFACE LOW
DEVELOPING OVER FAR NW SD THIS AFTERNOON...WHILE A TROF LIES
ACROSS THE FRONT RANGE OF THE ROCKIES. ALSO HAVE A NORTH/SOUTH
THERMAL BOUNDARY OVER THE CENTRAL NEBRASKA...CAUSE BY CLOUDS OVER
CENTRAL/EASTERN NEB.

TONIGHT...THUNDERSTORMS ARE HIGHLY LIKELY EVENTUALLY...AND A GOOD
CHANCE FOR SOME TO REACH SEVERE LIMITS. ALREADY HAVE WATCH BOXES TO
THE NORTH AND WEST. AFTERNOON HEATING HAS ERODED MOST OF THE CAP
OVER CENTRAL NEBRASKA...WHERE DEW PTS AROUND 70 DEGREES. FURTHER
WEST DEW PTS LOWER...HAVE STILL HAVE A SMALL CAP IN PLACE. 12Z
MODELS HAVING A VERY DIFFICULT TIME WITH THE NUMEROUS
BOUNDARIES...AS NONE HAVE QPF WHERE THUNDERSTORMS HAVE BEEN SO FAR
THIS AFTERNOON. 18Z RUN STARTING TO COME IN...AND QUICK ANALYSIS
HAS MUCH BETTER PLACEMENT OF CURRENT ACTIVITY...ALTHOUGH MODELS
DID NOT HANDLE LAST NIGHTS ACTIVITY VERY WELL. 18Z KLBF SOUNDINGS
SHOWED LI/S ALREADY AT -7.0 AND WHEN MODIFIED FOR LATEST
OB...STILL HAVE A SMALL CAP /-15 J/KG/ AND A VERY UNSTABLE
ATMOSPHERE.

COLD FRONT TO PUSH ACROSS THE AREA OVERNIGHT AND TOMORROW
MORNING...AND AM EXPECTING TO SEE THUNDERSTORMS DEVELOP ALONG THE
FRONT. ALSO HAVE A SLIGHT CHANCE FOR DEVELOP OVER EASTERN ZONES
WELL AHEAD OF THE FRONT...MAINLY THIS EVENING. CLOUDS MAY HAVE
BEEN ENOUGH TO KEEP THIS FROM FIRING. SHEER IS GOOD AND EXPECT
SOME ROTATING THUNDERSTORMS...HOWEVER OVERNIGHT FAVORS HAIL...BUT
A TORNADO CAN NOT BE RULED OUT.

SLIGHTLY COOLER AND DRIER AIR FILLS IN BEHIND THE FRONT FOR
TUESDAY. EXPECT THE FRONT LOCATION TO BE SOUTH AND EAST OF THE
AREA...THUS HAVE GONE DRY. HOWEVER...DRY SPELL TO BE SHORT
LIVED...AS FRONT LIFTS BACK NORTH FOR WEDNESDAY. MEANWHILE A RIDGE
BEGINS TO BUILD NORTH FROM THE DESERT SOUTHWEST INTO THE WESTERN
ROCKIES. THIS WILL CONTINUE TO KEEP US IN AN ACTIVE PATTERN FOR
THE REMAINDER OF THE WEEK AND INTO THE WEEKEND. TEMPERATURES TO BE
SEASONAL /80S AND LOWER 90S/ AND MOISTURE WILL RETURN TO THE
REGION...THUS LATE AFTERNOON AND OVERNIGHT THUNDERSTORMS REMAIN IN
THE FORECAST.

&&

.AVIATION...
SCATTERED SHOWERS AND THUNDERSTORMS WILL DEVELOP ACROSS THE AREA
LATE THIS AFTERNOON AND TONIGHT AHEAD OF A COLD FRONT.
VISIBILITIES MAY DROP TO LOW MVFR CONDITIONS IN HEAVY RAIN WITH
THE THUNDERSTORMS. CIGS WILL REMAIN VFR. THE COLD FRONT WILL
LIKELY EXTEND ALONG A LINE FROM NEAR KANW TO KLBF BY 12Z TUE. EAST
OF THIS FRONT...EXPECT THE SOUTHERLY WINDS USHERING ABUNDANT
MOISTURE INTO THE AREA TO PRODUCE MVFR/IFR CIGS IN STRATUS CLOUDS.
WEST OF THE FRONT...WESTERLY DOWNSLOPE WINDS WILL KEEP SKIES VFR.
THE ONE CAVEAT IS THE ACTUAL LOCATION OF THE FRONT. COMPUTER
MODELS ARE NOT IN AGREEMENT WITH THIS SO THE LOCATION GIVEN ABOVE
IS MY BEST ESTIMATION SO THEREFORE DID NOT INCLUDE THE MVFR CIGS
IN THE KLBF TAF. THE FRONT WILL MARCH EASTWARD WITH MVFR CIGS
BECOMING VFR IN THE KBBW AREA BY 17Z AND KONL BY 19Z.

&&

.LBF WATCHES/WARNINGS/ADVISORIES...NONE.

&&

SHORT TERM/EXTENDED...MASEK
AVIATION...DDB

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE NORTH PLATTE NE
328 PM CDT MON JUL 13 2009

NEZ004>010-022>029-035>038-056>059-069>071-094-142030-
SHERIDAN-EASTERN CHERRY-KEYA PAHA-BOYD-BROWN-ROCK-HOLT-GARDEN-
GRANT-HOOKER-THOMAS-BLAINE-LOUP-GARFIELD-WHEELER-ARTHUR-MCPHERSON-
LOGAN-CUSTER-DEUEL-KEITH-PERKINS-LINCOLN-CHASE-HAYES-FRONTIER-
WESTERN CHERRY-
328 PM CDT MON JUL 13 2009 /228 PM MDT MON JUL 13 2009/

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF WESTERN AND
NORTH CENTRAL NEBRASKA.

.DAY ONE...TONIGHT.

THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS OVER ALL OF
WESTERN AND NORTH CENTRAL NEBRASKA TONIGHT. A COLD FRONT WILL
MOVE EAST ACROSS WESTERN NEBRASKA TONIGHT WITH THUNDERSTORMS
DEVELOPING ALONG AND AHEAD OF THE FRONT. THE MAIN THREAT WITH
THUNDERSTORMS THAT DEVELOP WILL BE LARGE HAIL...DAMAGING WINDS AND
HEAVY RAIN. HOWEVER...AN ISOLATED TORNADO CAN NOT BE RULED OUT
ACROSS WESTERN CHERRY COUNTY AND THE EASTERN PANHANDLE.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY.

ISOLATED THUNDERSTORMS ARE POSSIBLE EACH NIGHT FROM WEDNESDAY
NIGHT THROUGH SUNDAY NIGHT AS SOUTHEAST UPSLOPE WINDS COMBINE WITH
WEAK UPPER LEVEL DISTURBANCES TO PROVIDE A MOIST...UNSTABLE
ENVIRONMENT FOR THUNDERSTORM DEVELOPMENT. THE MAIN THREAT FROM THE
THUNDERSTORMS WILL BE HEAVY RAIN...GUSTY WINDS...DEADLY LIGHTNING.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED TONIGHT ACROSS MUCH OF WESTERN
AND NORTH CENTRAL NEBRASKA.

&&

THIS PRODUCT IS NOW AVAILABLE...ALONG WITH OTHER WEATHER...
HYDROLOGICAL AND CLIMATOLOGICAL INFORMATION...AT
HTTP://WWW.WEATHER.GOV/NORTHPLATTE

DDB

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE NORTH PLATTE NE
306 PM CDT MON JUL 13 2009

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

0945 PM     TSTM WND GST     5 NE ANSELMO            41.67N 99.80W
07/12/2009  E60.00 MPH       CUSTER             NE   PUBLIC

            VERY HEAVY RAIN AND MARBLE SIZED HAIL BEING DRIVEN BY
            STRONG THUNDERSTORM WIND GUSTS.

0954 PM     HAIL             6 E ANSELMO             41.62N 99.75W
07/12/2009  E1.00 INCH       CUSTER             NE   PUBLIC

            MARBLE TO QUARTER SIZE HAIL OCCURRING AT TIME OF REPORT
            ALONG WITH VERY HEAVY RAINFALL AND STRONG WIND GUSTS.

1009 PM     TSTM WND GST     3 S CHAPPELL            41.05N 102.47W
07/12/2009  E65.00 MPH       DEUEL              NE   PUBLIC

            POWERFUL WINDS DRIVING VERY HEAVY RAINFALL WITH HAIL OF
            UNKNOWN SIZE 3 MILES SOUTH OF CHAPPELL.

1221 AM     HAIL             14 N OSHKOSH            41.61N 102.34W
07/13/2009  E1.00 INCH       GARDEN             NE   PUBLIC

1221 AM     HEAVY RAIN       OSHKOSH                 41.41N 102.34W
07/13/2009  M1.30 INCH       GARDEN             NE   PUBLIC

1231 AM     HEAVY RAIN       NORTH PLATTE            41.13N 100.77W
07/13/2009  M1.00 INCH       LINCOLN            NE   PUBLIC

1231 AM     HAIL             NORTH PLATTE            41.13N 100.77W
07/13/2009  M0.50 INCH       LINCOLN            NE   PUBLIC

0115 AM     HAIL             4 SE HERSHEY            41.12N 100.95W
07/13/2009  E1.00 INCH       LINCOLN            NE   PUBLIC

0700 AM     HEAVY RAIN       5 NE NORTH PLATTE       41.18N 100.70W
07/13/2009  M1.46 INCH       LINCOLN            NE   MESONET

            STORM TOTAL RAINFALL REPORT FURNISHED BY A NEBRASKA
            RAINFALL ASSESSMENT AND INFORMATION NETWORK OBSERVER.

0700 AM     HEAVY RAIN       5 WNW MERNA             41.51N 99.85W
07/13/2009  M1.38 INCH       CUSTER             NE   MESONET

            HIGH WINDS OF UNKNOWN SPEED ALONG WITH SOME PEA SIZE HAIL
            ALSO REPORTED. STORM TOTAL RAINFALL REPORT FURNISHED BY A
            NEBRASKA RAINFALL ASSESSMENT AND INFORMATION NETWORK
            OBSERVER.

0700 AM     HEAVY RAIN       5 SSE NORTH PLATTE      41.07N 100.74W
07/13/2009  M1.02 INCH       LINCOLN            NE   MESONET

            STORM TOTAL RAINFALL REPORT FURNISHED BY A NEBRASKA
            RAINFALL ASSESSMENT AND INFORMATION NETWORK OBSERVER.

0700 AM     HEAVY RAIN       1 WNW NORTH PLATTE      41.14N 100.79W
07/13/2009  M1.05 INCH       LINCOLN            NE   MESONET

            STORM TOTAL RAINFALL REPORT FURNISHED BY A NEBRASKA
            RAINFALL ASSESSMENT AND INFORMATION NETWORK OBSERVER.

0700 AM     HEAVY RAIN       3 WSW HERSHEY           41.14N 101.05W
07/13/2009  M1.11 INCH       LINCOLN            NE   MESONET

            STORM TOTAL RAINFALL REPORT FURNISHED BY A NEBRASKA
            RAINFALL ASSESSMENT AND INFORMATION NETWORK OBSERVER.

0700 AM     HEAVY RAIN       4 E NORTH PLATTE        41.13N 100.70W
07/13/2009  M1.22 INCH       LINCOLN            NE   MESONET

            STORM TOTAL RAINFALL REPORT FURNISHED BY A NEBRASKA
            RAINFALL ASSESSMENT AND INFORMATION NETWORK OBSERVER.

0700 AM     HEAVY RAIN       10 WSW BIG SPRINGS      41.01N 102.25W
07/13/2009  M1.34 INCH       DEUEL              NE   MESONET

            PEA SIZE HAIL WAS ALSO REPORTED. STORM TOTAL RAINFALL
            REPORT FURNISHED BY A NEBRASKA RAINFALL ASSESSMENT AND
            INFORMATION NETWORK OBSERVER.

0700 AM     HEAVY RAIN       2 N BROKEN BOW          41.43N 99.64W
07/13/2009  M1.38 INCH       CUSTER             NE   MESONET

            STORM TOTAL RAINFALL REPORT FURNISHED BY A NEBRASKA
            RAINFALL ASSESSMENT AND INFORMATION NETWORK OBSERVER.

0700 AM     HEAVY RAIN       6 NE NORTH PLATTE       41.19N 100.69W
07/13/2009  M1.41 INCH       LINCOLN            NE   MESONET

            STORM TOTAL RAINFALL REPORT FURNISHED BY A NEBRASKA
            RAINFALL ASSESSMENT AND INFORMATION NETWORK OBSERVER.

0700 AM     HEAVY RAIN       1 ENE NORTH PLATTE      41.14N 100.75W
07/13/2009  M1.50 INCH       LINCOLN            NE   MESONET

            STORM TOTAL RAINFALL REPORT FURNISHED BY A NEBRASKA
            RAINFALL ASSESSMENT AND INFORMATION NETWORK OBSERVER.

0700 AM     HEAVY RAIN       6 SSW BERWYN            41.27N 99.54W
07/13/2009  M1.83 INCH       CUSTER             NE   MESONET

            STORM TOTAL RAINFALL REPORT FURNISHED BY A NEBRASKA
            RAINFALL ASSESSMENT AND INFORMATION NETWORK OBSERVER.

0700 AM     HEAVY RAIN       7 SSW NORTH PLATTE      41.04N 100.82W
07/13/2009  M1.67 INCH       LINCOLN            NE   MESONET

            STORM TOTAL RAINFALL REPORT FURNISHED BY A NEBRASKA
            RAINFALL ASSESSMENT AND INFORMATION NETWORK OBSERVER.

0700 AM     HEAVY RAIN       6 NE NORTH PLATTE       41.19N 100.69W
07/13/2009  M1.80 INCH       LINCOLN            NE   MESONET

            STORM TOTAL RAINFALL REPORT FURNISHED BY A NEBRASKA
            RAINFALL ASSESSMENT AND INFORMATION NETWORK OBSERVER.

&&

SCARMEL

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
755 PM CDT MON JUL 13 2009

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

0754 PM     TSTM WND GST     CROOKSTON               42.93N 100.75W
07/13/2009  E60 MPH          CHERRY             NE   PUBLIC

            VERY STRONG WIND GUSTS REPORTED BY THE PUBLIC.

&&

CARMEL

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
804 PM CDT MON JUL 13 2009

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

0801 PM     TSTM WND GST     8 ESE LISCO             41.46N 102.48W
07/13/2009  E60 MPH          GARDEN             NE   PUBLIC

            PUBLIC REPORTED AT LEAST 60 MPH WIND GUSTS AND 8 INCH
            TREE LIMBS DOWN.

&&

13

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
812 PM CDT MON JUL 13 2009

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

0812 PM     HAIL             VALENTINE               42.87N 100.55W
07/13/2009  E0.75 INCH       CHERRY             NE   TRAINED SPOTTER

&&

CARMEL