Severe Thunderstorm Warning 97, NWS Hastings, NE

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HASTINGS NE
646 PM CDT WED JUN 11 2014

.SHORT TERM...(THIS EVENING THROUGH THURSDAY)
ISSUED AT 346 PM CDT WED JUN 11 2014

MAP ANALYSIS INDICATES A CLOSED UPPER TROPOSPHERIC LOW OVER
PORTIONS OF THE MID TO UPPER MISSISSIPPI VALLEY AND GREAT LAKES
REGION...AS WELL AS AN UPPER TROPOSPHERIC SHORT WAVE TROUGH OVER
MONTANA AND WYOMING. UPPER TROPOSPHERIC FLOW IS FAIRLY WEAK ACROSS
MUCH OF THE CONUS...WITH THE EXCEPTION OF A ~110KT JET STREAK NEAR
MAINE AND A ~55KT JET STREAK OVER WYOMING. UPPER TROPOSPHERIC FLOW
OVER OUR AREA MAXES OUT AT AROUND 40KTS NEAR 29000FT AGL PER 12Z
SOUNDING DATA FROM KLBF AND KOAX. WATER VAPOR IMAGERY SHOWS
ENHANCED UPPER TROPOSPHERIC MOISTURE OVER THE EASTERN CONUS...AS
WELL AS OVER PORTIONS OF THE CENTRAL TO NORTHERN HIGH PLAINS AHEAD
OF THE AFOREMENTIONED SHORT WAVE TROUGH AXIS. AT THE SURFACE AN
AREA OF LOW BAROMETRIC PRESSURE EXISTS OVER NORTHEASTERN
COLORADO...AND AN AREA OF HIGH BAROMETRIC PRESSURE EXISTS OVER
NORTHEASTERN OKLAHOMA AND SOUTHEASTERN KANSAS. A WARM FRONT /
STATIONARY BOUNDARY IS NOTED EXTENDING NORTHEAST FROM THE SURFACE
LOW INTO PORTIONS OF WESTERN NEBRASKA AND SOUTH CENTRAL SOUTH
DAKOTA...AND A WEAK DRY LINE EXTENDS SOUTH/SOUTHWEST FROM THE
SURFACE LOW ACROSS PORTIONS OF EASTERN COLORADO AND WESTERN
KANSAS. THE LOWER TROPOSPHERIC WIND FIELD ACROSS OUR AREA REMAINS
FROM THE SOUTHEAST AS A RESULT.

GUIDANCE SUGGESTS THE UPPER TROPOSPHERIC SHORT WAVE TROUGH AXIS
OVER MONTANA AND WYOMING WILL MOVE EAST THROUGH THE NEXT 24
HOURS...CLEARING THE NORTHERN PLAINS BY 06Z TONIGHT...AND MOVING
ACROSS THE UPPER MISSISSIPPI VALLEY AND INTO THE GREAT LAKES
REGION DURING THE DAY THURSDAY. AT THE SURFACE...AN AREA OF LOW
BAROMETRIC PRESSURE IS EXPECTED TO DEVELOP ACROSS THE NORTHERN
PLAINS AND SOUTH CENTRAL CANADA AHEAD OF THE APPROACHING SHORT
WAVE TONIGHT...WITH THIS SURFACE LOW THEN EXPECTED TO MOVE
EAST/NORTHEAST INTO THE GREAT LAKES REGION AND SOUTHEASTERN CANADA
BY 00Z FRIDAY. AS A RESULT...THE WARM FRONT / STATIONARY BOUNDARY
CURRENTLY EXTENDING FROM WESTERN NEBRASKA INTO SOUTH CENTRAL SOUTH
DAKOTA WILL MOVE EAST/SOUTHEAST AS A COLD FRONT ACROSS OUR REGION
THIS EVENING INTO TOMORROW...WITH THIS BAROCLINIC ZONE EXPECTED TO
CLEAR MUCH OF OUR CWA BY 06Z TONIGHT. AN AREA OF HIGH BAROMETRIC
PRESSURE IS THEN EXPECTED TO MOVE INTO OUR AREA POST-FROPA DURING
THE DAY THURSDAY.

LOWER TROPOSPHERIC CONVERGENCE AND RESULTANT LIFT ALONG THE LOWER
TROPOSPHERIC BAROCLINIC ZONE APPEAR AS THROUGH THEY WILL BE STRONG
ENOUGH TO OVERCOME WHAT LITTLE CIN WILL BE IN EXISTENCE ACROSS THE
AREA AROUND 00Z THIS EVENING. AS A RESULT...QPF FIELDS FROM THE
NAM...OPERATIONAL GFS...EC AND SREF-MEAN...AS WELL AS SIMULATED
REFLECTIVITY FROM THE 1KM WRF-NMM...1KM WRF-ARW AND HRRR ALL
SUGGEST ISOLATED TO PERHAPS SCATTERED CONVECTION WILL DEVELOP
ALONG THE BAROCLINIC ZONE ACROSS OUR CWA AROUND 00Z...PERHAPS AS
EARLY AS 23Z. THESE DATA DO NOT SUGGEST THE CONVECTION WILL BE
OVERLY WIDESPREAD ...PRIMARILY BECAUSE THE UPPER TROPOSPHERIC
SHORT WAVE AND THE BULK OF SYNOPTIC-SCALE OMEGA WILL REMAIN NORTH
OF OUR AREA...BUT IT CERTAINLY APPEARS HIT AND MISS CONVECTIVE
ACTIVITY WILL BE NOTED ACROSS PORTIONS OF THE AREA LATER THIS
EVENING. HEADING INTO THE OVERNIGHT HOURS...SOME SETS OF GUIDANCE
ALSO SUGGEST PRECIPITATION COULD INCREASE IN SPATIAL COVERAGE
PRIMARILY ACROSS OUR SOUTH/SOUTHEAST AS A SMALL-SCALE PERTURBATION
DEVELOPS OVER NORTHERN KANSAS...SOUTH OF THE PRIMARY UPPER
TROPOSPHERIC SHORT WAVE. GIVEN ALL THIS...WENT AHEAD ~20% POPS
ALONG THE BAROCLINIC ZONE STARTING AT 23Z THIS EVENING...WITH POPS
THEN INCREASING TO AROUND 70% ACROSS OUR SOUTH/SOUTHEASTERN CWA
00-06Z. POPS ARE THEN TAPERED OFF TO NEAR ZERO HEADING INTO THE
DAY THURSDAY.

ENHANCED LOWER TROPOSPHERIC MOISTURE...WITH SURFACE DEW POINT
READINGS NEAR 60...ALONG WITH INCREASING UPPER TROPOSPHERIC LAPSE
RATES AS THE SHORT WAVE BRUSHES OUR AREA TO THE NORTH...SHOULD
PROMOTE RESPECTABLE POTENTIAL ENERGY ACROSS THE AREA THROUGH THIS
EVENING...WITH GUIDANCE SUGGESTING 0-1KM MLCAPE VALUES OF 2500 TO
NEAR 3000J/KG WILL BE COMMON ACROSS THE AREA. DEEP LAYER BULK
SHEAR VALUES OF ~25KTS ARE ALSO EXPECTED ACROSS THE REGION THIS
EVENING. GIVEN ALL THIS...IT CERTAINLY SEEMS POSSIBLE A FEW OF THE
UPDRAFTS COULD BE CAPABLE OF PRODUCING LARGE HAIL AND STRONG
THUNDERSTORM WIND GUSTS AND WILL CONTINUE SUCH WORDING IN THE HWO.

ALTHOUGH THE LOWER TROPOSPHERIC BAROCLINIC ZONE WILL CLEAR THE
AREA TONIGHT...A TRULY COOLER LOWER TROPOSPHERIC AIR MASS WILL NOT
LIKELY INFILTRATE OUR AREA UNTIL THE DAY THURSDAY. AS A
RESULT...SIMILAR TEMPERATURE READINGS SHOULD BE REALIZED TONIGHT
WHEN COMPARED TO EARLY THIS MORNING...WITH OVERNIGHT LOW
TEMPERATURES IN THE 50S FORECAST FOR THE MOST PART TONIGHT. THE
INFILTRATION OF A COOLER LOWER TROPOSPHERIC AIR MASS WILL THEN
PROMOTE COOLER TEMPERATURE READINGS ON THURSDAY WHEN COMPARED TO
TODAY...WITH THURSDAY AFTERNOON HIGHS IN THE 70S CURRENTLY
FORECAST.

.LONG TERM...(THURSDAY NIGHT THROUGH WEDNESDAY)
ISSUED AT 346 PM CDT WED JUN 11 2014

PRIMARY FORECAST CONCERN IN THE LONG TERM REMAINS WITH PERIODIC
THUNDERSTORM CHANCES.

NOT A LOT OF CHANGES NEEDED/MADE TO THE FORECAST FOR THE START OF
THE LONG TERM PERIOD...WITH IT REMAINING DRY DURING THE THURSDAY
NIGHT/FRIDAY TIME FRAME. MODELS REMAIN IN GOOD AGREEMENT SHOWING
NORTHWESTERLY FLOW IN PLACE IN UPPER LEVELS OVER THE PLAINS...SET
UP BETWEEN LOW PRESSURE/TROUGH AXIS MOVING INTO THE GREAT
LAKES/MIDWEST REGIONS...AND A RIDGE AXIS EXTENDING NORTH THROUGH
THE ROCKIES FROM HIGH PRESSURE OVER MEXICO. ANOTHER LOW PRESSURE
LOOKS TO BE MAKING ITS WAY ONTO THE PAC NW COAST. THROUGH THE
OVERNIGHT HOURS AND FRIDAY...THESE FEATURES SLIDE EAST...WITH THE
RIDGE AXIS MOVING RIGHT THROUGH THE CWA...ENDING UP TO THE EAST BY
FRIDAY EVENING. AT THE SURFACE...HIGH PRESSURE DOMINATES THE
PATTERN ON THURSDAY NIGHT
...WITH CONTINUED LIGHTER NE/E WINDS...BEFORE SLIDING OFF TO THE
EAST FRIDAY...WITH STRONGER SOUTHERLY WINDS RETURNING BY FRIDAY
AFTERNOON AS LOW PRESSURE DEEPENS TO THE WEST. STILL LOOKING AT A
REBOUND IN TEMPS FOR FRIDAY CLOSER TO NORMAL...WITH NEAR 80 IN THE
EAST TO MID 80S IN THE WEST.

LATE FRIDAY NIGHT INTO SUNDAY MORNING IS THE PERIOD WITH THE NEXT
BEST CHANCES FOR THUNDERSTORMS...MAINLY LATE SATURDAY AFTERNOON
INTO THE EVENING/OVERNIGHT PERIOD. FRIDAY NIGHT...MODELS ARE
SHOWING THAT ABOVE MENTIONED UPPER LEVEL LOW OVER THE PAC NW
HAVING SHIFTED EAST IN CENTRAL/ERN PORTIONS OF THE
MONTANA/CANADIAN BORDER. A PIECE OF SHORTWAVE ENERGY EJECTED OUT
AHEAD OF THE MAIN TROUGH AXIS LOOKS TO MOVE THROUGH THE
REGION...WITH AN 50-ISH+ KT LLJ IN PLACE. SOME MODELS SHOWING THE
POTENTIAL FOR THE DEVELOPMENT OF SOME THUNDERSTORMS...BUT NOT ALL
ARE IN AGREEMENT /THE EC IS DRY/...SHOWING THE AREA CAPPED WITH
BETTER CHANCES FURTHER WEST AND NORTH OF THE CWA...ALONG THE
BETTER CONVERGENCE ZONES OF THE LLJ. CANT COMPLETELY RULE OUT AT
LEAST SOME SCATTERED ACTIVITY...SO HAVE A SLIGHT CHANCE MENTION
GOING AFTER 06Z. IF STORMS DO DEVELOP...THEY COULD LINGER INTO THE
MORNING HOURS...BUT WOULD EVENTUALLY PUSH OFF TO THE EAST. THE
MAIN FOCUS THROUGH THIS PERIOD LIES WITH ANOTHER SURFACE COLD
FRONT/DRY LINE APPROACHING FROM THE NW/W. THUNDERSTORMS ARE
EXPECTED TO DEVELOP LATE IN THE AFTERNOON/PERHAPS EARLY
EVENING...DEPENDING ON CAPPING...BEFORE CONTINUING ITS TREK E/SE
THROUGH THE REGION. WILL CONTINUE TO NEED TO KEEP AN EYE ON THIS
PERIOD FOR SEVERE WEATHER...WITH MODELS SHOWING A GOOD COMBO OF
INSTABILITY/SHEAR. WILL SEE HOW THINGS TREND IN COMING MODEL RUNS.
THINKING THAT ANY LINGERING ACTIVITY INTO SUNDAY WOULD MOVE EAST
OUT OF THE BY BY LATE MORNING/MIDDAY...LEAVING THE REST OF THE DAY
DRY. AS FAR AS TEMPS GO...HIGHS ON SAT AHEAD OF THE FRONT LOOK TO
REACH INTO THE MID 80S TO NEAR 90...WITH A SLIGHT COOL DOWN ON
SUNDAY BEHIND THE FRONT FROM NEAR 80 NORTH TO MID 80S SOUTH.

MONDAY THROUGH WEDNESDAY...STILL SEEING THE POTENTIAL FOR
THUNDERSTORM CHANCES...WITH A GENERALLY ZONAL PATTERN IN PLACE IN
THE UPPER LEVELS ACROSS THE REGION...AND PERIODIC DISTURBANCES
MOVING THROUGH. LOT OF UNCERTAINTY WITH TIMING/LOCATION THIS FAR
OUT...SO KEPT POPS LOW...HARD TO HAVE MUCH CONFIDENCE. HIGHS LOOK
TO BE FAIRLY SIMILAR...GENERALLY RANGING FROM NEAR 80 IN THE NORTH
TO MID/UPPER 80S IN THE SOUTH.

&&

.AVIATION...(FOR THE 00Z TAFS THROUGH 00Z THURSDAY EVENING)
ISSUED AT 640 PM CDT WED JUN 11 2014

THUNDERSTORMS ARE BEGINNING TO DEVELOP NEAR KGRI. AT 645 PM
CDT...A COLD FRONT EXTENDED FROM JUST SOUTH OF SAINT PAUL TO NEAR
WOOD RIVER...AND OFF TO THE SOUTHWEST FROM THERE. THE FIRST ECHO
ON RADAR IS DUE NORTH OF KGRI...JUST NORTH OF ST LIBORY.
ADDITIONAL THUNDERSTORMS WILL QUICKLY DEVELOP ALONG THE BOUNDARY
OVER THE NEXT FEW HOURS AND WILL CERTAINLY BE IN THE KGRI VICINITY
THROUGH AROUND 10 PM...AT WHICH POINT THEY SHOULD ALL HAVE PASSED
OFF TO THE SOUTHEAST. WILL HAVE TO WATCH OUT FOR THE POSSIBILITY
OF SEVERE THUNDERSTORMS THROUGH 10 PM AT KGRI. THE WIND WILL TURN
TO THE NORTH BEHIND THE FRONT BY 01Z TO 02Z. THE WIND WILL REMAIN
OUT OF THE NORTH THROUGH THE REMAINDER OF THE TAF VALID. PERIOD.

&&

.GID WATCHES/WARNINGS/ADVISORIES...
NE...NONE.
KS...NONE.
&&

SHORT TERM...BRYANT
LONG TERM...ADO
AVIATION...WESELY

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE HASTINGS NE
324 PM CDT WED JUN 11 2014

NEZ060-121200-
DAWSON-
324 PM CDT WED JUN 11 2014

THIS HAZARDOUS WEATHER OUTLOOK IS FOR DAWSON COUNTY IN SOUTH
CENTRAL NEBRASKA.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

THUNDERSTORMS WILL BE POSSIBLE ACROSS THE OUTLOOK AREA...STARTING
PRIMARILY AFTER 6 PM CDT AND CONTINUING INTO THE OVERNIGHT HOURS.
STRONG TO SEVERE STORMS WILL BE POSSIBLE BETWEEN 6 AND 10 PM
CDT...WITH HAIL UP TO THE SIZE OF A GOLFBALL AND THUNDERSTORM WIND
GUSTS TO AROUND 60 MPH BEING THE PRIMARY SEVERE WEATHER THREATS.

MINOR FLOODING IS EXPECTED TO CONTINUE ALONG THE PLATTE RIVER
THROUGH WEST-CENTRAL DAWSON COUNTY.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY.

MINOR FLOODING IS EXPECTED TO CONTINUE ALONG THE PLATTE RIVER
THROUGH WEST-CENTRAL DAWSON COUNTY DURING THE DAY THURSDAY.

OFF AND ON THUNDERSTORM CHANCES RETURN TO THE FORECAST AREA LATE
FRIDAY NIGHT THROUGH TUESDAY. AT THIS TIME...IT APPEARS THE BEST
CHANCE FOR MORE WIDESPREAD THUNDERSTORM ACTIVITY WILL OCCUR LATE
SATURDAY AFTERNOON AND EVENING.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED BETWEEN 6 AND 10 PM CDT.

&&

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

KSZ005>007-017>019-NEZ039>041-046>049-061>064-072>077-082>087-
121200-
PHILLIPS-SMITH-JEWELL-ROOKS-OSBORNE-MITCHELL-VALLEY-GREELEY-NANCE-
SHERMAN-HOWARD-MERRICK-POLK-BUFFALO-HALL-HAMILTON-YORK-GOSPER-
PHELPS-KEARNEY-ADAMS-CLAY-FILLMORE-FURNAS-HARLAN-FRANKLIN-WEBSTER-
NUCKOLLS-THAYER-
324 PM CDT WED JUN 11 2014

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

.DAY ONE...THIS AFTERNOON AND TONIGHT.

THUNDERSTORMS WILL BE POSSIBLE ACROSS THE OUTLOOK AREA...STARTING
PRIMARILY AFTER 6 PM CDT AND CONTINUING INTO THE OVERNIGHT HOURS.
STRONG TO SEVERE STORMS WILL BE POSSIBLE BETWEEN 6 AND 10 PM
CDT...WITH HAIL UP TO THE SIZE OF A GOLFBALL AND THUNDERSTORM WIND
GUSTS TO AROUND 60 MPH BEING THE PRIMARY SEVERE WEATHER THREATS.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY.

OFF AND ON THUNDERSTORM CHANCES RETURN TO THE FORECAST AREA LATE
FRIDAY NIGHT THROUGH TUESDAY. AT THIS TIME...IT APPEARS THE BEST
CHANCE FOR MORE WIDESPREAD THUNDERSTORM ACTIVITY WILL OCCUR LATE
SATURDAY AFTERNOON AND EVENING.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED BETWEEN 6 AND 10 PM CDT.

&&

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

BRYANT/ADO

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PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HASTINGS NE
738 PM CDT WED JUN 11 2014

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

0732 PM     HAIL             4 N JUNIATA             40.65N 98.51W
06/11/2014  E1.00 INCH       ADAMS              NE   PUBLIC

            PHONE REPORT OF QUARTER SIZED HAIL 4N AND 1E OF JUNIATA

&&

PBEDA

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HASTINGS NE
738 PM CDT WED JUN 11 2014

KSZ006-007-120115-
JEWELL KS-SMITH KS-
738 PM CDT WED JUN 11 2014

...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL SMITH AND NORTHWESTERN
JEWELL COUNTIES UNTIL 815 PM CDT...

AT 738 PM CDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR
ATHOL...OR 21 MILES EAST OF PHILLIPSBURG...MOVING EAST AT 25 MPH.

NICKEL SIZE HAIL AND WIND GUSTS UP TO 50 MPH WILL BE POSSIBLE WITH
THIS STORM.

LOCATIONS IMPACTED INCLUDE...
SMITH CENTER...KENSINGTON...LEBANON...ATHOL AND BELLAIRE.

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 3977 9905 3995 9901 3990 9850 3960 9860
TIME...MOT...LOC 0038Z 292DEG 20KT 3986 9894

ADO

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HASTINGS NE
742 PM CDT WED JUN 11 2014

KSZ017-018-120130-
OSBORNE KS-ROOKS KS-
742 PM CDT WED JUN 11 2014

...SIGNIFICANT WEATHER ADVISORY FOR EASTERN ROOKS AND WEST CENTRAL
OSBORNE COUNTIES UNTIL 830 PM CDT...

AT 741 PM CDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 8
MILES SOUTH OF ZURICH...OR 13 MILES NORTHEAST OF ELLIS...MOVING
NORTHEAST AT 35 MPH.

NICKEL SIZE HAIL AND WIND GUSTS UP TO 50 MPH WILL BE POSSIBLE WITH
THIS STORM.

LOCATIONS IMPACTED INCLUDE...
PLAINVILLE...WOODSTON...ZURICH AND CODELL.

LAT...LON 3914 9956 3951 9914 3931 9890 3913 9918
TIME...MOT...LOC 0041Z 226DEG 29KT 3910 9944

HEINLEIN

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HASTINGS NE
752 PM CDT WED JUN 11 2014

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

0750 PM     HAIL             4 N HASTINGS            40.65N 98.39W
06/11/2014  E1.25 INCH       ADAMS              NE   OFFICIAL NWS OBS

            FALLING AT THE OFFICE

&&

PBEDA