Severe Thunderstorm Warning 218, NWS Hastings, NE

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HASTINGS NE
308 PM CDT TUE JUL 9 2013

.SHORT TERM...(THIS EVENING THROUGH WEDNESDAY)
ISSUED AT 306 PM CDT TUE JUL 9 2013

SORT OF ACTIVE 24 HOURS WITH POTENTIAL FOR STORMS LATE
THIS AFTERNOON/EVENING...AND THEN COOLER WEATHER WEDNESDAY.

THE HEAT ADVISORY WILL CONTINUE DESPITE PRESENCE OF CLOUDS
ACROSS MUCH OF NORTHERN KANSAS TODAY. THERE IS STILL SOME
POSSIBILITY OF REACHING 105 DEGREE APPARENT TEMPERATURES
WITH VERY LITTLE VENTILATION (I.E., WIND). IF THUNDERSTORMS
DEVELOP EXTENSIVELY ACROSS NORTH CENTRAL KANSAS...THE ADVISORY
MAY BE LIFTED EARLY.

SPEAKING OF THUNDERSTORMS...INITIAL WEAK CONVECTIVE BOUNDARY
ACROSS NORTHERN KANSAS HAS BEEN THE FOCUS FOR SHOWERS AND ISOLATED
THUNDERSTORMS ALL DAY. IT SHOULD BE THE MAIN FOCUS LATE THIS
AFTERNOON AND EVENING...AND ITS JUST A MATTER OF TIME BEFORE WE
START TO SEE CONVECTIVE ACTIVITY INCREASE ALONG THE FRONT. FORECAST
REFLECTS ISOLATED/SCATTERED THUNDERSTORMS ACROSS THE SOUTHERN 1/2
OF THE AREA THROUGH EVENING HOURS IN ANTICIPATION OF THIS. MODERATE
INSTABILITY AND WEAK SHEAR FAVOR PULSE TYPE STORMS WITH HAIL AND
ISOLATED DOWNBURST TYPE WINDS THE MAIN ISSUE. RAINFALL IS PROBABLY
SPOTTY IN NATURE. A SECOND AREA OF CONCERN IS JUST TO THE WEST OF
THE FORECAST AREA...OR NORTH OF MCCOOK. STARTING TO SEE SOME
CONVERGENCE IN VICINITY OF MID LEVEL FRONTOGENESIS AREA NEARBY. IT
IS VERY UNSTABLE WITH LITTLE CAP. HAVE INCLUDED ISOLATED
THUNDERSTORMS FOR THE WESTERN AREAS FOR 3 TO 4 HOURS TO ACCOUNT FOR
THIS. A THIRD AREA OF CONCERN THIS EVENING IS IN THE NORTHERN HALF
OF THE FORECAST AREA...WHERE THE ACTUAL COLD FRONT IS PROGRESSING
TOWARD AT THIS TIME. CONVERGENCE ALONG THE BOUNDARY IS WEAK IN
GENERAL BUT THERE IS SOME INSTABILITY. ANYTHING WHICH DEVELOPS HERE
LOOKS VERY ISOLATED AND UNCERTAINTY LEADS ME TO LEAVE OUT OF THE
FORECAST AT THIS TIME.

THE MAIN WEATHER NEWS WEDNESDAY WILL BE A COOLER AIRMASS FOR
THE REGION AND WHAT ESSENTIALLY AMOUNTS TO A RETURN TO NEAR
NORMAL. THAT IS JUST ONE STORY. AS THE FRONT LINGERS TO THE
SOUTHWEST OF THE AREA...A WAVE WILL EMERGE FROM THE CENTRAL
ROCKIES AND WOULD MOST LIKELY RIDE SOUTHEAST ALONG THE FRONT.
WHILE THERE IS SOME MODEL AGREEMENT THIS WILL HAPPEN...TIMING
IS TOUGH. THE NAM BRINGS PRECIPITATION IN DURING THE DAY AND
IS MORE OF AN OUTLIER. OTHER MODELS HOLD OFF TIL EVENING AND
OVERNIGHT. INITIAL DEVELOPMENT WILL BE TO THE WEST AND THEN
SHOWER/STORMS WILL MIGRATE EAST AS THURSDAY EVENING APPROACHES.
CONTINUED WITH SMALL CHANCES FOR PRECIPITATION DURING THE DAY
FAVORING WESTERN AREAS. STILL SOME TOO MUCH UNCERTAINTY TO MAKE A
TOTAL LEAP OF FAITH AND INCREASE PRECIPITATION CHANCES DRAMATICALLY.

.LONG TERM...(WEDNESDAY NIGHT THROUGH TUESDAY)
ISSUED AT 306 PM CDT TUE JUL 9 2013

THE BIG PICTURE OVER THE LONG TERM ENTAILS A STUBBORN UPPER LEVEL
RIDGE ABOVE THE OUTLOOK AREA THAT DOES NOT BUDGE MUCH OVER THE
EXTENDED PERIOD. 500 MB ENSEMBLES ARE IN GOOD AGREEMENT WITH REGARDS
TO RIDGING OVER THE OUTLOOK AREA DURING THIS PERIOD...WHICH DOES NOT
APPEAR TO BRING MUCH RAINFALL TO THE AREA EXCEPT FOR SOME SPOTTY
CHANCES HERE AND THERE. HIGH TEMPERATURES WILL RANGE FROM NEAR
NORMAL TO ABOVE NORMAL AS 850 MB TEMPERATURES AVERAGE BETWEEN 24 AND
28 DEGREES CELSIUS THROUGH MUCH OF THE EXTENDED PERIOD DURING PEAK
HEATING. OVERALL...IT APPEARS WE ARE IN STORE FOR HOT AND DRY
CONDITIONS THROUGH THE BEGINNING OF NEXT WEEK.

WE BEGIN ON THURSDAY...WHEN HIGH TEMPERATURES WILL RANGE IN THE
UPPER 80S AND LOWER 90S...WHICH IS RIGHT AROUND NORMAL FOR THIS
TIME OF YEAR. HOWEVER...HIGH TEMPERATURES WILL RISE BACK ABOVE
NORMAL ON BOTH FRIDAY AND SATURDAY...WHEN MERCURY READINGS WILL
LIKELY RANGE BETWEEN 94 AND 104 DEGREES. HEAT ADVISORY CONDITIONS
MAY BECOME EVIDENT ON THESE DAYS...ESPECIALLY OUR SOUTHERN COUNTIES
WHERE HEAT INDICES WILL BE VERY CLOSE TO ADVISORY CRITERIA. THEN WE
WILL FINISH THE REST OF THE PERIOD OUT WITH HIGHS NEAR NORMAL.

AS FOR PRECIPITATION...THERE DOES NOT APPEAR TO BE MUCH CONFIDENCE
OVERALL FROM A GUIDANCE LEVERAGE POINT DUE TO THE LACK OF AGREEMENT
BETWEEN MODELS. WITH THAT BEING SAID...THERE SHOULD BE SOME LINGERING
SHOWER ACTIVITY ONGOING THROUGH THURSDAY FROM THE PREVIOUS NIGHT TO
BEGIN THE LONG TERM. THE NEXT BEST SHOT AT ANY RAIN WILL BE THIS
WEEKEND...WITH SHOWERS POTENTIALLY LINGERING INTO MONDAY.
OTHERWISE...WE ARE LOOKING AT RELATIVELY DRY CONDITIONS. ANY SHOWERS
THAT DO DEVELOP WILL HAVE THE POTENTIAL TO BECOME THUNDERSTORMS IN
SOME OF THE MORE SUITABLE ENVIRONMENTS...BUT NOTHING SCREAMS SEVERE
POTENTIAL AT THE MOMENT.

&&

.AVIATION...(FOR THE 18Z TAFS THROUGH 18Z WEDNESDAY AFTERNOON)
ISSUED AT 1252 PM CDT TUE JUL 9 2013

VFR CONDITIONS ARE FORECAST FOR KGRI AREA. INITIAL OUTFLOW TYPE
BOUNDARY HAS SETTLED SOUTH OF THE NEBRASKA BORDER AND THAT SHOULD
BE FOCUS AREA FOR MOST THUNDERSTORMS TONIGHT. NOT CONFIDENT ENOUGH
FOR ANY PRECIPITATION IN THE TAF. REINFORCING FRONT WILL HELP TO
SOLIDIFY A LIGHT NORTHERN/NORTHEAST BREEZE BY THIS EVENING WHICH
WILL CONTINUE INTO WEDNESDAY. SOME MID/HIGH CLOUDS MAY START TO
INFILTRATE FROM THE WEST BY MIDDAY WEDNESDAY AHEAD OF APPROACHING
MID-LEVEL WAVE.

&&

.GID WATCHES/WARNINGS/ADVISORIES...
NE...HEAT ADVISORY UNTIL 7 PM CDT THIS EVENING FOR NEZ085>087.

KS...HEAT ADVISORY UNTIL 7 PM CDT THIS EVENING FOR KSZ005>007-017>019.

&&

SHORT TERM...NOAA/NWS/MORITZ
LONG TERM...GUERRERO
AVIATION...NOAA/NWS/MORITZ

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE HASTINGS NE
707 PM CDT TUE JUL 9 2013

KSZ005>007-017>019-NEZ039>041-046>049-060>064-072>077-082>087-
101200-
PHILLIPS-SMITH-JEWELL-ROOKS-OSBORNE-MITCHELL-VALLEY-GREELEY-NANCE-
SHERMAN-HOWARD-MERRICK-POLK-DAWSON-BUFFALO-HALL-HAMILTON-YORK-
GOSPER-PHELPS-KEARNEY-ADAMS-CLAY-FILLMORE-FURNAS-HARLAN-FRANKLIN-
WEBSTER-NUCKOLLS-THAYER-
707 PM CDT TUE JUL 9 2013

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

.DAY ONE...THIS EVENING AND TONIGHT.

SCATTERED THUNDERSTORMS ARE EXPECTED TO CONTINUE TO MOVE ACROSS
THE OUTLOOK AREA THROUGH THE REMAINDER OF THE EVENING HOURS. THE
THREAT FOR STRONG TO SEVERE STORMS WILL CONTINUE...WITH LOCALIZED
WIND GUSTS TO 65 MPH AND PING PONG BALL SIZE HAIL
POSSIBLE...THOUGH AN ISOLATED TORNADO CANNOT BE COMPLETELY RULED
OUT.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.

THERE ARE SMALL CHANCES FOR MAINLY NON SEVERE THUNDERSTORMS
WEDNESDAY AND WEDNESDAY NIGHT. A FEW OF THOSE STORMS COULD LINGER
INTO EARLY THURSDAY MORNING. THUNDERSTORMS RETURN TO THE FORECAST
BEGINNING SATURDAY NIGHT...WITH INTERMITTENT CHANCES THROUGH
MONDAY.

HEAT INDEX VALUES ON BOTH FRIDAY AND SATURDAY WILL RANGE FROM 98
TO 105 DEGREES FOR MOST OF THE OUTLOOK AREA...WHICH IS AT OR NEAR
HEAT ADVISORY CRITERIA. THE HIGHER VALUES WILL BE ACROSS NORTH
CENTRAL KANSAS...AND THE BORDER COUNTIES IN FAR SOUTHERN NEBRASKA.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED LATE THIS EVENING AND TONIGHT.

&&

MORE INFORMATION MAY BE OBTAINED AT THE FOLLOWING WEB PAGE:
   HTTP://WWW.WEATHER.GOV/HASTINGS  (ALL LOWERCASE)

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SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HASTINGS NE
622 PM CDT TUE JUL 9 2013

NEZ060-100015-
DAWSON NE-
622 PM CDT TUE JUL 9 2013

...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN DAWSON COUNTY UNTIL
715 PM CDT...

AT 619 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A
STRONG THUNDERSTORM 7 MILES SOUTH OF OCONTO...OR 19 MILES NORTH OF
LEXINGTON...MOVING SOUTHEAST AT 15 MPH.

HAIL UP TO THE SIZE OF NICKELS AND WIND GUSTS UP TO 40 MPH ARE
EXPECTED WITH THIS STORM...ALONG WITH HEAVY RAIN.

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

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 4105 9991 4104 9942 4081 9974 4101 9999
TIME...MOT...LOC 2323Z 299DEG 14KT 4105 9979

GUERRERO

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HASTINGS NE
818 PM CDT TUE JUL 9 2013

NEZ082-100130-
FURNAS NE-
818 PM CDT TUE JUL 9 2013

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN FURNAS COUNTY UNTIL
830 PM CDT...

AT 815 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A
STRONG THUNDERSTORM NEAR WILSONVILLE...OR 25 MILES NORTHWEST OF
NORTON...MOVING SOUTHEAST AT 25 MPH.

HAIL UP TO THE SIZE OF PENNIES AND WIND GUSTS UP TO 50 MPH ARE
EXPECTED WITH THIS STORM.

LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...
  WILSONVILLE...
  HENDLEY...

THIS STORM MAY INTENSIFY...AND A SEVERE THUNDERSTORM WATCH IS IN
EFFECT FOR THIS AREA. 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 4026 10004 4000 9969 4001 10020 4020 10020
TIME...MOT...LOC 0119Z 334DEG 23KT 4013 10009

HALBLAUB

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HASTINGS NE
831 PM CDT TUE JUL 09 2013

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

0823 PM     HAIL             2 SE WILSONVILLE        40.09N 100.08W
07/09/2013  E1.00 INCH       FURNAS             NE   TRAINED SPOTTER

            QUARTER SIZED HAIL WITH DIME SIZED HAIL MIXED IN.

&&

PBEDA