Alert archive / Nebraska / Tornado Warnings in 2011

Tornado Warning 68, NWS Hastings, NE

June 20, 20114 counties in Nebraska

NWS Hastings, NE issued this tornado warning at Jun 20, 2011, 6:00 PM CDT for 4 counties in Nebraska. It was in force for 45 min. 2 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
Jun 20, 2011, 6:00 PM CDT (23:00 UTC)
Expired
Jun 20, 2011, 6:45 PM CDT
In force
45 min
Issued by
NWS Hastings, NE
Area
Storm-based polygon

Counties Hamilton County, NE, Merrick County, NE, Polk County, NE, York County, NE

The radar

The Omaha radar (KOAX), 102 km from the middle of the area, began a volume at 23:02 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

TimeReportWhereRemark
Jun 20, 6:14 PM CDTTORNADO8 W Osceola, NE
Jun 20, 6:20 PM CDTTORNADO9 S Silver Creek, NESHED WAS DESTROYED APPROXIMATELY ONE MILE NORTH OF THE INTERSECTION OF HIGHWAYS 92 AND 39.

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 2 storm reports to this tornado warning; the first came 14 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 watch it was issued in

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

IssuedProductOfficeLasted
Jun 20, 1:00 PM CDTTornado Watch PDSSPC10 hr

The nearest sounding before it

Omaha, NE (KOAX), launched 12:00Z, 11.0 hours before the alert went out and 102 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-pSkew-T log-p diagram, Omaha, NE at 12:00Z on 2011-06-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 104 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Omaha, NE at 12:00Z on 2011-06-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -142 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
104 J/kg
Mixed-layer CIN
-396 J/kg
Mixed-layer LCL
1450 m above ground
0-6 km bulk shear
51 kt
0-1 km storm-relative helicity
-142 m²/s²
0-3 km storm-relative helicity
188 m²/s²
Significant tornado parameter
0.0
Supercell composite
7.5

Open this sounding in Storm Lab

The text

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

376 
WFUS53 KGID 202300
TORGID
NEC081-121-143-185-202345-
/O.NEW.KGID.TO.W.0068.110620T2300Z-110620T2345Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE HASTINGS NE
600 PM CDT MON JUN 20 2011

THE NATIONAL WEATHER SERVICE IN HASTINGS HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHEASTERN HAMILTON COUNTY IN SOUTH CENTRAL NEBRASKA...
  NORTHEASTERN MERRICK COUNTY IN CENTRAL NEBRASKA...
  POLK COUNTY IN EAST CENTRAL NEBRASKA...
  NORTHWESTERN YORK COUNTY IN EAST CENTRAL NEBRASKA...

* UNTIL 645 PM CDT

* AT 558 PM CDT...STORM SPOTTERS AND NATIONAL WEATHER SERVICE DOPPLER
  RADAR WERE TRACKING A LARGE AND EXTREMELY DANGEROUS TORNADO 6 MILES
  WEST OF BENEDICT...OR 11 MILES NORTHWEST OF YORK. DOPPLER RADAR
  SHOWED THIS TORNADO MOVING NORTHEAST AT 40 MPH.

* LOCATIONS IMPACTED INCLUDE...
  BENEDICT...POLK...STROMSBURG...OSCEOLA...SHELBY AND SILVER CREEK.

THIS WARNING REPLACES ALL PREVIOUS TORNADO WARNINGS FOR THE 
YORK...POLK AND HAMILTON COUNTY AREA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TO REPEAT...A LARGE...EXTREMELY DANGEROUS AND POTENTIALLY DEADLY
TORNADO IS ON THE GROUND. TO PROTECT YOUR LIFE...TAKE COVER NOW. MOVE
TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A STURDY BUILDING. AVOID
WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR OUTDOORS...MOVE TO THE
CLOSEST SUBSTANTIAL SHELTER AND PROTECT YOURSELF FROM FLYING DEBRIS.

MOTORISTS SHOULD NOT TAKE SHELTER UNDER HIGHWAY OVERPASSES. AS A LAST
RESORT...EITHER PARK YOUR VEHICLE AND STAY PUT...OR ABANDON YOUR
VEHICLE AND LIE DOWN IN A LOW LYING AREA.

&&

LAT...LON 4087 9764 4096 9791 4131 9775 4131 9770
      4140 9770 4140 9760 4134 9759 4137 9751
      4137 9747 4139 9740 4139 9736 4126 9736
TIME...MOT...LOC 2259Z 206DEG 36KT 4101 9771
HAIL 1.50IN

$$

PFANNKUCH
4 follow-up statements
063 
WWUS53 KGID 202310
SVSGID

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE HASTINGS NE
610 PM CDT MON JUN 20 2011

NEC081-185-202320-
/O.CAN.KGID.TO.W.0068.000000T0000Z-110620T2345Z/
HAMILTON NE-YORK NE-
610 PM CDT MON JUN 20 2011

...THE TORNADO WARNING FOR NORTHWESTERN YORK AND NORTHEASTERN
HAMILTON COUNTIES IS CANCELLED...

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

LAT...LON 4106 9752 4107 9783 4110 9783 4131 9775
      4131 9770 4140 9770 4140 9760 4134 9759
      4137 9751 4139 9736 4126 9736
TIME...MOT...LOC 2310Z 198DEG 39KT 4114 9768

$$

NEC121-143-202345-
/O.CON.KGID.TO.W.0068.000000T0000Z-110620T2345Z/
MERRICK NE-POLK NE-
610 PM CDT MON JUN 20 2011

...A TORNADO WARNING REMAINS IN EFFECT FOR POLK AND NORTHEASTERN
MERRICK COUNTIES UNTIL 645 PM CDT...

AT 607 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A
CONFIRMED TORNADO.  THIS TORNADO WAS LOCATED 5 MILES NORTHEAST OF
POLK...OR 17 MILES NORTH OF YORK...MOVING NORTH AT 45 MPH.

LOCATIONS IMPACTED INCLUDE...
  OSCEOLA...SHELBY AND SILVER CREEK.

THIS TORNADO HAS A HISTORY OF PRODUCING DAMAGE SINCE THE BRADSHAW 
AREA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.

MOTORISTS SHOULD NOT TAKE SHELTER UNDER HIGHWAY OVERPASSES. AS A LAST
RESORT... EITHER PARK YOUR VEHICLE AND STAY PUT...OR ABANDON YOUR
VEHICLE AND LIE DOWN IN A LOW LYING AREA.

&&

LAT...LON 4106 9752 4107 9783 4110 9783 4131 9775
      4131 9770 4140 9770 4140 9760 4134 9759
      4137 9751 4139 9736 4126 9736
TIME...MOT...LOC 2310Z 198DEG 39KT 4114 9768
HAIL 1.50IN

$$

PFANNKUCH
868 
WWUS53 KGID 202317
SVSGID

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE HASTINGS NE
617 PM CDT MON JUN 20 2011

NEC121-143-202345-
/O.CON.KGID.TO.W.0068.000000T0000Z-110620T2345Z/
MERRICK NE-POLK NE-
617 PM CDT MON JUN 20 2011

...A TORNADO WARNING REMAINS IN EFFECT FOR POLK AND NORTHEASTERN
MERRICK COUNTIES UNTIL 645 PM CDT...

AT 612 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A
CONFIRMED TORNADO.  THIS TORNADO WAS LOCATED 6 MILES NORTHWEST OF
STROMSBURG...OR 21 MILES NORTH OF YORK...MOVING NORTH AT 45 MPH.

AT 614 PM...A NWS EMPLOYEE REPORTED A TORNADO APPROXIMATELY 8 MILES 
WEST OF OSCEOLA.

THIS TORNADO WILL BE NEAR...
  SILVER CREEK AROUND 630 PM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 4111 9764 4112 9777 4114 9781 4131 9775
      4131 9770 4140 9770 4140 9760 4134 9759
      4137 9751 4139 9736 4126 9736
TIME...MOT...LOC 2316Z 198DEG 39KT 4120 9768
HAIL 1.50IN

$$

PFANNKUCH
699 
WWUS53 KGID 202325
SVSGID

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE HASTINGS NE
625 PM CDT MON JUN 20 2011

NEC121-143-202345-
/O.CON.KGID.TO.W.0068.000000T0000Z-110620T2345Z/
MERRICK NE-POLK NE-
625 PM CDT MON JUN 20 2011

...A TORNADO WARNING REMAINS IN EFFECT FOR CENTRAL POLK AND
NORTHEASTERN MERRICK COUNTIES UNTIL 645 PM CDT...

AT 621 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A 
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS POSSIBLE 
TORNADO WAS LOCATED 5 MILES SOUTH OF SILVER CREEK...OR 20 MILES 
SOUTHWEST OF COLUMBUS...MOVING NORTH AT 45 MPH.

THIS DANGEROUS STORM WILL AFFECT MAINLY RURAL AREAS OF CENTRAL POLK 
AND NORTHEASTERN MERRICK COUNTIES...AND A TORNADO MAY PASS VERY 
CLOSE TO SILVER CREEK. 

THIS STORM HAS A HISTORY OF PRODUCING STRONG TORNADOES SINCE IT WAS 
NEAR BRADSHAW. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 4123 9747 4114 9761 4115 9774 4119 9777
      4131 9775 4131 9770 4140 9770 4140 9760
      4134 9759 4137 9751 4138 9745
TIME...MOT...LOC 2324Z 198DEG 39KT 4129 9764
HAIL 1.50IN

$$

PFANNKUCH
176 
WWUS53 KGID 202336
SVSGID

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE HASTINGS NE
636 PM CDT MON JUN 20 2011

NEC121-143-202345-
/O.CON.KGID.TO.W.0068.000000T0000Z-110620T2345Z/
MERRICK NE-POLK NE-
636 PM CDT MON JUN 20 2011

...A TORNADO WARNING REMAINS IN EFFECT FOR NORTH CENTRAL POLK AND
EXTREME NORTHEASTERN MERRICK COUNTIES UNTIL 645 PM CDT...

AT 631 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A 
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS POSSIBLE 
TORNADO WAS LOCATED NEAR SILVER CREEK...OR 17 MILES SOUTHWEST OF 
COLUMBUS...MOVING NORTH AT 35 MPH.

LOCATIONS IMPACTED INCLUDE...
  MAINLY RURAL AREAS OF EXTREME NORTHEASTERN MERRICK COUNTY NEAR     
  SILVER CREEK.

IN ADDITION TO A TORNADO...GOLF BALL SIZE HAIL IS POSSIBLE WITH THIS 
STORM. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 4124 9752 4121 9761 4120 9770 4122 9773
      4131 9775 4131 9770 4140 9770 4140 9760
      4134 9759 4137 9751 4138 9745
TIME...MOT...LOC 2334Z 195DEG 32KT 4135 9764
HAIL 1.75IN

$$

PFANNKUCH

What forecasters said that day

The local office's own words before this tornado warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Hastings, NE wrote its last area forecast discussion before this tornado warning went out at Jun 20, 3:39 PM CDT, 2 hours 21 minutes earlier.

Area forecast discussion, Jun 20, 3:39 PM CDT, 2 hours 21 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HASTINGS NE
339 PM CDT MON JUN 20 2011

.SHORT TERM...TONIGHT THROUGH 00Z FRIDAY. PRIMARY FORECAST
CONCERN CONTINUES TO LIE WITH THE IMPACT FELT BY THE UPPER LEVEL
LOW MOVING THROUGH.

THINGS ARE UNDERWAY AND SO FAR GOING PRETTY MUCH AS
EXPECTED...PROFILER/SATELLITE DATA SHOWING THE MAIN UPPER LEVEL
LOW PRESSURE SYSTEM MAKING ITS WAY FURTHER ONTO THE
PLAINS...CURRENTLY SET UP OVER WRN PORTIONS OF KANSAS. SURFACE LOW
PRESSURE SITTING OVER NC KS/NEAR THE KS/NEB BORDER...WITH THE WARM
FRONTAL BOUNDARY EXTENDING TOWARD THE E/NE. PLENTY OF
INSTABILITY/SHEAR AVAILABLE...SO EXPECTING THUNDERSTORMS TO HAVE
LITTLE TROUBLE BECOMING SEVERE THIS AFTERNOON...AND WITH THE SFC
LOW SHIFTING RIGHT OVER THE CWA AND BOUNDARIES IN PLACE...THE
POTENTIAL FOR TORNADOES CERTAINLY REMAINS. THIS WILL REMAIN THE
MAIN STORY THROUGH THE REST OF THE AFTERNOON AND INTO THIS
EVENING...WITH ADDITIONAL ACTIVITY EXPECTED TO FIRE ALONG THE SFC
FRONT DRAPED THROUGH THE CWA AS THE UPPER LEVEL PUSHES FURTHER
INTO THE REGION.

WESTERN PORTIONS WILL CONTINUE TO SEE WRAP AROUND PRECIPITATION
CHANCES THROUGH THE OVERNIGHT HOURS ON THE BACKSIDE OF THE UPPER
LEVEL LOW AS IT SHIFTS NORTHEAST THROUGH THE CENTRAL PLAINS...WITH
IT EXPECTED TO BE OVER NORTHEASTERN NEBRASKA BY 12Z TUESDAY.  IT
WILL CONTINUE TO GRADUALLY SHIFT E/NE THROUGH THE DAY...WHICH WILL
KEEP PRECIPITATION CHANCES LINGERING AROUND...ESP ACROSS
NORTHEASTERN PORTIONS OF THE CWA.  EXPECTING COOLER CONDITIONS WITH
NORTHWESTERLY WINDS AND CONTINUED CLOUD COVER /AT LEAST FOR PART OF
THE DAY/...WITH HIGHS FORECAST IN THE 70S.  KEPT THUNDER AT AN
ISOLATED MENTION WITH THE BEST INSTABILITY PUSHING EAST OF THE CWA.
ONE CONCERN WILL BE WITH WINDS...WITH PRESSURE RISES AND A TIGHTENED
PRESSURE GRADIENT ACROSS THE CWA. EXPECTING THAT WIND SPEEDS WILL BE
IN AT LEAST THE 20 TO 25 MPH RANGE...UPCOMING SHIFTS WILL HAVE TO
DETERMINE IF THERE IS A NEED FOR A WIND ADV.

KEPT FORECAST FOR TUESDAY NIGHT THROUGH THURSDAY DRY...AS THE CWA
SITS UNDER NORTHWESTERLY UPPER LEVEL FLOW BEHIND TODAYS SYSTEM.
EXPECTING TO SEE CLEARING SKIES WITH THE MORE SUBSIDENT FLOW...WITH
GRADUALLY DIMINISHING WINDS AS SURFACE HIGH PRESSURE CONTINUES TO
SETTLE INTO THE REGION FROM THE WEST.

.LONG TERM...THURSDAY NIGHT THROUGH MONDAY. PRIMARY CONCERNS INCLUDE
SEVERAL CHANCES FOR OFF AND ON...LIKELY MAINLY NOCTURNAL
THUNDERSTORM CHANCES. THIS FORECAST WAS BASED PRIMARILY OFF A BLEND
OF THE DETERMINISTIC 00Z ECMWF RUN...AND THE 00Z GFS ENSEMBLE MEAN.

LOOKING AT THE OVERALL PICTURE FOR THESE 3-4 DAYS...MODELS ARE IN
DECENT AGREEMENT THAT FRI-MON WILL FEATURE A SEASONABLY ACTIVE
QUASI-ZONAL FLOW PATTERN ALOFT...TO THE NORTH OF A SUBTROPICAL MID
LEVEL RIDGE BECOMING ESTABLISHED FROM THE DESERT SOUTHWEST INTO
TX/OK.

STARTING THINGS OFF THURS NIGHT INTO FRI...THE MID/UPPER LEVELS
FEATURE WEAK RIDGING...WITH THE CENTRAL PLAINS IN BETWEEN THE
DEPARTING SHORTWAVE TROUGH ACROSS THE NORTHEAST CONUS...AND ANOTHER
CLOSED H5 LOW CENTERED NEAR THE WASHINGTON STATE/BRITISH COLUMBIA
BORDER. AT THE SURFACE...THE STORY FOR THE ENTIRE FRI-MON PERIOD
GENERALLY HINGES ON THE PLACEMENT OF A CLASSIC JUNE QUASI-STATIONARY
EAST-WEST FRONT...WHICH WILL LIKELY WANDER AROUND SOMEWHERE BETWEEN
SOUTHERN KANSAS AND SOUTHERN NEBRASKA DEPENDING ON THE DAY.
OVERALL...THE FORECAST LOOKS RELATIVELY UNCHANGED FROM PREVIOUS
PACKAGE...WITH SEVERAL...OFF AND ON CHANCES FOR THUNDERSTORMS DURING
THE PERIOD. HAVE SLIGHT CHANCE 20 PERCENT POPS FOCUSED DURING MOST
PERIODS...BUT MADE A MINOR BUMP TO CHANCE 30S FOR FRIDAY
NIGHT...WHICH BASED ON GFS ENSEMBLE DATA LOOKS LIKE THE OVERALL BEST
12-HOUR PRECIP RISK DURING THE EXTENDED PERIOD.

AS FOR THURSDAY NIGHT INTO FRIDAY...SOMEWHAT HESITANTLY LEFT OUT
SLIGHT CHANCE POPS...ALTHOUGH 00Z ECMWF WOULD SUGGEST THAT POPS MAY
ULTIMATELY BE REQUIRED ACROSS AT LEAST THE EASTERN HALF OF THE CWA
LATE THURS NIGHT INTO FRI MORNING AS DECENT LOW LEVEL JET
CONVERGENCE/THETA-E ADVECTION FOCUSES INTO THE AREA. HOWEVER WITH
THE GFS ENSEMBLE MUCH LESS BULLISH FOR NOW...WILL LEAVE IT DRY FOR
NOW. AS STATED EARLIER...FOCUSED HIGHEST POPS FOR NOW ON FRIDAY
NIGHT PERIOD...AS BOTH GFS/ECMWF ARE IN DECENT AGREEMENT WORKING A
LOW AMPLITUDE SHORTWAVE THROUGH THE MID LEVEL FLOW...ENHANCING THE
LOW LEVEL FORCING FROM ANOTHER NOCTURNAL LOW LEVEL JET POKING
NORTHWARD OUT OF KANSAS. ADDITIONAL WAVES PASS THROUGH BOTH SAT
NIGHT AND SUN NIGHT...AND ALTHOUGH THE CURRENT POPS DON/T OUTWARDLY
REFLECT IT...THIS LOOKS LIKE A FAIRLY CLASSIC JUNE PATTERN FAVORING
EVENING/OVERNIGHT CONVECTION VERSUS DAYTIME STORMS...EITHER VIA THE
LOW LEVEL JET OR FROM HIGH PLAINS STORMS ROLLING EASTWARD INTO THE
AREA. AS ALWAYS...A POTENTIALLY STRONG MID LEVEL CAP EVIDENT BY H7
TEMPS IN EXCESS OF +12C WILL DICTATE THE SOUTHERN EXTENT OF
CONVECTION...AND PATTERN SUGGESTS NEBRASKA COUNTIES WILL ULTIMATELY
BE ASSIGNED HIGHER STORM CHANCES THAN KANSAS.

ALTHOUGH NO PERIOD STANDS OUT FOR A MAJOR SEVERE WEATHER RISK...THE
PERSISTENCE OF 30-40KT OF DEEP LAYER SHEAR ON THE NORTHERN PERIPHERY
OF THE SOUTHERN PLAINS RIDGE...ALONG WITH THE RETURN OF AMPLE
MOISTURE/INSTABILITY IN THE FORM OF ALMOST DAILY MUCAPE VALUES OF AT
LEAST 1000-2000 J/KG...SUGGESTS THAT PERIODIC SEVERE STORM CHANCES
WILL EXIST...ALONG WITH CHANCES FOR LOCALLY HEAVY RAINFALL. WOULD BE
RATHER SURPRISED IF THE CWA DOESN/T END UP IN AT LEAST 1 SPC SLIGHT
RISK DURING THE FRI-MON PERIOD...AND POSSIBLY ALL DAYS.

IN SUMMARY...AN ACTIVE PATTERN OF OFF AND ON THUNDERSTORM CHANCES
WILL HIGHLIGHT THE EXTENDED...AND THERE ARE A BOAT LOAD OF DETAILS
TO IRON OUT IN THE COMING DAYS.

TEMPERATURE WISE...MADE OVERALL FEW CHANGES TO PREVIOUS FORECAST.
HIGH TEMPS FRI-MON ARE FORECAST TO HOVER WITHIN A FEW DEGREES OF
LATE JUNE NORMALS MOST AREAS...WITH LOW TO MID 80S PREVALENT ACROSS
NEBRASKA ZONES...AND MID 80S TO LOW 90S IN NORTH CENTRAL KS.
OBVIOUSLY THE TEMPERATURE DETAILS WILL BE HEAVILY MODULATED BY THE
PLACEMENT/TIMING OF CONVECTION...AND HOW FAR NORTH OR SOUTH THE
QUASI-STATIONARY EAST-WEST FRONT WILL BE SHOVED AROUND. ALTHOUGH
USED A MODEL/GUIDANCE BLEND FOR HIGHS EACH DAY...THE 00Z ECMWF ALONE
SEEMS TO BE A BIT MORE AGGRESSIVE BRINGING WARMER AIR NORTH INTO
MUCH OF THE CWA FRI-MON...SUGGESTING THAT ESPECIALLY KS ZONES COULD
SEE MORE IN THE WAY OF 90S VERSUS UPPER 80S. TIME WILL TELL. MORNING
LOWS WILL GENERALLY FALL BETWEEN THE UPPER 50S AND MID 60S EACH
MORNING.

&&

.AVIATION...18Z TAF. PRIMARY FORECAST CONCERN FOR THIS TAF PERIOD
LIES WITH A FRONTAL BOUNDARY PUSHING THROUGH THE AREA AND
THUNDERSTORM CHANCES. A LARGE UPPER LEVEL LOW PRESSURE SYSTEM WILL
CONTINUE TO MAKE ITS WAY ONTO THE PLAINS TODAY...AND IS EXPECTED
TO BE THE FORCING BEHIND ANOTHER ROUND OF THUNDERSTORMS. AT THE
SURFACE...LOW PRESSURE CURRENTLY SITS OVER NC KS...WITH A FRONTAL
BOUNDARY EXTENDING EAST NEAR THE NE/KS BORDER AND ANOTHER NORTH
THROUGH THE GENERAL AREA OF THE TERMINAL. THIS IS MAKING THE WIND
FORECAST TRICKY...BUT AM EXPECTING EASTERLY WINDS TO REMAIN THE
CASE THIS AFTERNOON...GRADUALLY GETTING A MORE NORTHERLY COMPONENT
THIS EVENING...BEFORE BECOMING NORTHWESTERLY TONIGHT. EXACT
STARTING TIME/POINT FOR THUNDERSTORM ACTIVITY A LITTLE DIFFICULT
TO NAIL DOWN...BUT AM EXPECTING THE BETTER CHANCES FOR
THUNDERSTORMS TO AFFECT THE TERMINAL AREA TO COME IN THE MID
AFTERNOON TO EARLY EVENING HOURS. OBVIOUSLY ONCE ACTIVITY ACTUALLY
STARTS THE TIMES MAY HAVE TO BE ADJUSTED.

&&

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

SHORT/AVIATION...ADO
LONG...PFANNKUCH
Hazardous weather outlook, Jun 20, 12:05 PM CDT, 5 hours 55 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE HASTINGS NE
1205 PM CDT MON JUN 20 2011

KSZ005>007-017>019-NEZ039>041-046>049-060>064-072>077-082>087-
211200-
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-
1205 PM CDT MON JUN 20 2011

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

.DAY ONE...THIS AFTERNOON AND TONIGHT.

THERE IS A CHANCE FOR SEVERE THUNDERSTORMS ACROSS THE ENTIRE
OUTLOOK AREA...ESPECIALLY DURING THE MID AFTERNOON THROUGH
EVENING HOURS. THERE WILL BE THE POTENTIAL FOR HAIL UP TO THE SIZE
OF TENNIS BALLS...DAMAGING WIND GUSTS TO 70 MPH...AND ISOLATED
TORNADOES. THE PRIMARY RISK FOR SEVERE WEATHER...INCLUDING
TORNADOES...FOCUSES ALONG AND NORTH OF A LINE FROM RAVENNA TO
GENEVA NEBRASKA.

LOCALLY HEAVY RAINFALL IN EXCESS OF ONE INCH IS POSSIBLE ACROSS
THE OUTLOOK AREA THROUGH TONIGHT...WHICH COULD LEAD TO FLOODING
CONCERNS.

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

THERE WILL BE A CHANCE FOR ISOLATED THUNDERSTORMS ACROSS THE
OUTLOOK AREA ON TUESDAY. A FEW MAY BE ON THE STRONG SIDE...WITH
HAIL UP TO THE SIZE OF NICKELS AND GUSTY WINDS UP TO 50 MPH
POSSIBLE.

BETWEEN FRIDAY NIGHT AND SUNDAY...THERE ARE VARIOUS...OFF AND ON
CHANCES FOR THUNDERSTORMS ACROSS THE OUTLOOK AREA. ALTHOUGH IT IS
TOO EARLY TO DETERMINE SPECIFICS...IT IS LIKELY THAT AT LEAST A
FEW SEVERE THUNDERSTORMS WITH LARGE HAIL AND DAMAGING WINDS WILL
AFFECT THE REGION DURING THIS TIME...ALONG WITH THE POSSIBILITY OF
LOCALLY HEAVY RAINFALL.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL LIKELY BE NEEDED THIS AFTERNOON AND
EVENING...ESPECIALLY NORTH OF A LINE FROM RAVENNA TO GENEVA
NEBRASKA.

&&

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

ADO/PFANNKUCH

In the hours before

Local storm report, Jun 20, 5:47 PM CDT, 13 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HASTINGS NE
547 PM CDT MON JUN 20 2011

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

0540 PM     TORNADO          4 SW HAMPTON            40.84N 97.94W
06/20/2011                   HAMILTON           NE   FIRE DEPT/RESCUE

            HAMPTON FIRE DEPARTMENT REPORTS TORNADO DAMAGE TO POWER
            LINES, GRAIN BINS, TREES AND PIVOT IRRIGATION SYSTEMS.

&&

REED
Local storm report, Jun 20, 5:49 PM CDT, 11 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HASTINGS NE
549 PM CDT MON JUN 20 2011

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

0549 PM     TORNADO          8 W YORK                40.87N 97.75W
06/20/2011                   YORK               NE   TRAINED SPOTTER

            TORNADO ON THE GROUND.

&&

NWS
Local storm report, Jun 20, 5:50 PM CDT, 10 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HASTINGS NE
550 PM CDT MON JUN 20 2011

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

0550 PM     TORNADO          3 E HAMPTON             40.88N 97.83W
06/20/2011                   HAMILTON           NE   TRAINED SPOTTER

            TORNADO ON THE GROUND 3 TO 4 MILES EAST OF HAMPTON

&&

NWS
Local storm report, Jun 20, 5:54 PM CDT, 6 minutes before
PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE HASTINGS NE
554 PM CDT MON JUN 20 2011

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

0250 PM     TORNADO          2 NW LONG ISLAND        39.97N 99.56W
06/20/2011                   PHILLIPS           KS   LAW ENFORCEMENT

            LAW ENFORCEMENT REPORTS TORNADO 2 MILES NORTHWEST OF LONG
            ISLAND MOVING NORTHEAST.

0305 PM     TORNADO          6 S STAMFORD            40.04N 99.59W
06/20/2011                   HARLAN             NE   LAW ENFORCEMENT

            3 TORNADOES SPOTTED 6 MILES SOUTH OF STAMFORD.

0305 PM     HAIL             6 S STAMFORD            40.04N 99.59W
06/20/2011  E1.50 INCH       HARLAN             NE   LAW ENFORCEMENT

0328 PM     TORNADO          4 N STAMFORD            40.19N 99.59W
06/20/2011                   HARLAN             NE   TRAINED SPOTTER

            RAIN WRAPPED TORNADO REPORTED BY TRAINED SPOTTER.

0331 PM     FUNNEL CLOUD     6 N ATLANTA             40.46N 99.47W
06/20/2011                   PHELPS             NE   EMERGENCY MNGR

0332 PM     TORNADO          6 NNE STAMFORD          40.21N 99.55W
06/20/2011                   HARLAN             NE   STORM CHASER

            TORNADO LASTED APPROXIMATELY 3 MINUTES.

0344 PM     HAIL             3 SW OVERTON            40.71N 99.58W
06/20/2011  E1.50 INCH       DAWSON             NE   LAW ENFORCEMENT

            DIME TO PING PONG BALL SIZE HAIL 2 TO 3 MILES SOUTHWEST
            OF OVERTON ON INTERSTATE 80.

0344 PM     TORNADO          4 S ELM CREEK           40.66N 99.38W
06/20/2011                   PHELPS             NE   LAW ENFORCEMENT

            DAMAGE TO SOME RESIDENCES AND PIPE LINES. PIVOTS TURNED
            OVER.

0345 PM     HAIL             OVERTON                 40.74N 99.54W
06/20/2011  E1.75 INCH       DAWSON             NE   TRAINED SPOTTER

0350 PM     FUNNEL CLOUD     1 E ELM CREEK           40.72N 99.36W
06/20/2011                   BUFFALO            NE   TRAINED SPOTTER

            TRAINED SPOTTER REPORTED FUNNEL CLOUD ON EAST SIDE OF ELM
            CREEK.

0350 PM     HAIL             3 SW OVERTON            40.71N 99.58W
06/20/2011  E1.00 INCH       DAWSON             NE   EMERGENCY MNGR

0350 PM     TSTM WND GST     2 W OVERTON             40.74N 99.58W
06/20/2011  E60.00 MPH       DAWSON             NE   LAW ENFORCEMENT

0350 PM     TORNADO          2 SW ELM CREEK          40.70N 99.40W
06/20/2011                   BUFFALO            NE   EMERGENCY MNGR

            EMERGENCY MANAGER REPORTS 2 TORNADOES ON THE GROUND WITH
            DEBRIS.

0400 PM     TSTM WND DMG     ELM CREEK               40.72N 99.38W
06/20/2011                   BUFFALO            NE   EMERGENCY MNGR

            ROOF DAMAGED IN ELM CREEK.

0400 PM     TORNADO          ELM CREEK               40.72N 99.38W
06/20/2011                   BUFFALO            NE   STORM CHASER

            ROOF PARTIALLY REMOVED FROM HOME ON WEST SIDE OF ELM
            CREEK. POWER LINES DOWN

0411 PM     TSTM WND DMG     2 W ELM CREEK           40.72N 99.41W
06/20/2011                   BUFFALO            NE   LAW ENFORCEMENT

            SEMI WAS OVERTURNED ON HIGHWAY 30.

0415 PM     TORNADO          6 NNE ELM CREEK         40.80N 99.33W
06/20/2011                   BUFFALO            NE   STORM CHASER

            LARGE TORNADO BECOMING RAIN WRAPPED.

0416 PM     HAIL             10 N ELM CREEK          40.86N 99.38W
06/20/2011  E2.75 INCH       BUFFALO            NE   FIRE DEPT/RESCUE

0416 PM     HAIL             7 NW GIBBON             40.82N 98.94W
06/20/2011  E1.00 INCH       BUFFALO            NE   TRAINED SPOTTER

0419 PM     HAIL             10 NW GIBBON            40.85N 98.98W
06/20/2011  E2.00 INCH       BUFFALO            NE   STORM CHASER

0425 PM     HAIL             MILLER                  40.93N 99.39W
06/20/2011  E0.88 INCH       BUFFALO            NE   CO-OP OBSERVER

            POWER IS OUT IN MILLER.

0426 PM     TORNADO          6 SE MILLER             40.87N 99.31W
06/20/2011                   BUFFALO            NE   TRAINED SPOTTER

            HOUSES DAMAGED AND GRAIN BINS DESTROYED. POWER LINES
            ACROSS ROADWAY AND CENTER PIVOTS TURNED OVER.

0435 PM     HAIL             MILLER                  40.93N 99.39W
06/20/2011  E1.00 INCH       BUFFALO            NE   CO-OP OBSERVER

0435 PM     TORNADO          6 SE MILLER             40.87N 99.31W
06/20/2011                   BUFFALO            NE   BROADCAST MEDIA

            ROPE TORNADO ON GROUND SOUTHEAST OF MILLER.

0435 PM     TORNADO          2 N AMHERST             40.87N 99.27W
06/20/2011                   BUFFALO            NE   TRAINED SPOTTER

            HIGH VOLTAGE POWER LINES DOWN 2 MILES NORTH OF AMHERST.
            GARAGE IS DAMAGED AND A HOUSE IS DESTROYED.

0442 PM     HAIL             GILTNER                 40.77N 98.15W
06/20/2011  E1.00 INCH       HAMILTON           NE   FIRE DEPT/RESCUE

0445 PM     TORNADO          3 SE PLEASANTON         40.94N 99.05W
06/20/2011                   BUFFALO            NE   TRAINED SPOTTER

            STOVEPIPE TORNADO ON THE GROUND.

0448 PM     HAIL             5 S GRAND ISLAND        40.85N 98.37W
06/20/2011  E1.75 INCH       HALL               NE   TRAINED SPOTTER

            GOLF BALL SIZE HAIL JUST NORTH OF INTERSTATE 80.

0451 PM     HAIL             GRAND ISLAND            40.92N 98.37W
06/20/2011  E1.00 INCH       HALL               NE   AMATEUR RADIO

            QUARTER SIZE HAIL REPORTED ON THE NORTHWEST PART OF GRAND
            ISLAND.

0459 PM     HAIL             GRAND ISLAND            40.92N 98.37W
06/20/2011  E0.88 INCH       HALL               NE   BROADCAST MEDIA

            NICKEL SIZE HAIL WEST OF GRAND ISLAND AT HUSKER HIGHWAY
            AND HWY 30 INTERSECTION.

0501 PM     HAIL             10 S AURORA             40.72N 98.00W
06/20/2011  E0.88 INCH       HAMILTON           NE   EMERGENCY MNGR

            NICKEL SIZE HAIL 10 MILES SOUTH OF AURORA ON HIGHWAY 14.

0506 PM     TORNADO          3 WSW ROCKVILLE         41.10N 98.88W
06/20/2011                   SHERMAN            NE   STORM CHASER

            TORNADO ON THE GROUND JUST LIFTED.

0512 PM     TSTM WND DMG     GRAND ISLAND            40.92N 98.37W
06/20/2011                   HALL               NE   LAW ENFORCEMENT

            A LARGE TREE FELL ON A HOUSE NEAR ENGLEMAN AND ABBOTT
            ROADS ON THE WEST SIDE OF GRAND ISLAND.

0521 PM     FUNNEL CLOUD     2 W YORK                40.87N 97.63W
06/20/2011                   YORK               NE   TRAINED SPOTTER

0526 PM     TORNADO          6 SSW HAMPTON           40.80N 97.93W
06/20/2011                   HAMILTON           NE   FIRE DEPT/RESCUE

            FIRE DEPARTMENT REPORTS TORNADO ON GROUND 2 MILES SOUTH
            AND 1 WEST OF HAMPTON INTERSTATE EXCHANGE.

0534 PM     HAIL             3 WSW BRADSHAW          40.87N 97.80W
06/20/2011  E1.25 INCH       YORK               NE   TRAINED SPOTTER

0534 PM     TORNADO          2 W HAMPTON             40.88N 97.93W
06/20/2011                   HAMILTON           NE   LAW ENFORCEMENT

0540 PM     TORNADO          4 SW HAMPTON            40.84N 97.94W
06/20/2011                   HAMILTON           NE   FIRE DEPT/RESCUE

            HAMPTON FIRE DEPARTMENT REPORTS TORNADO DAMAGE TO POWER
            LINES, GRAIN BINS, TREES AND PIVOT IRRIGATION SYSTEMS.

0549 PM     TORNADO          8 W YORK                40.87N 97.75W
06/20/2011                   YORK               NE   TRAINED SPOTTER

            TORNADO ON THE GROUND.

0550 PM     TORNADO          3 E HAMPTON             40.88N 97.83W
06/20/2011                   HAMILTON           NE   TRAINED SPOTTER

            TORNADO ON THE GROUND 3 TO 4 MILES EAST OF HAMPTON

&&

REED
Local storm report, Jun 20, 5:55 PM CDT, 5 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HASTINGS NE
555 PM CDT MON JUN 20 2011

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

0555 PM     TORNADO          6 N BRADSHAW            40.97N 97.75W
06/20/2011                   YORK               NE   TRAINED SPOTTER

            TORNADO STILL ON THE GROUND.

&&

NWS
Local storm report, Jun 20, 5:58 PM CDT, 2 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HASTINGS NE
558 PM CDT MON JUN 20 2011

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

0554 PM     TORNADO          6 N BRADSHAW            40.97N 97.75W
06/20/2011                   YORK               NE   TRAINED SPOTTER

            LARGE MULTIPLE VORTEX TORNADO ON THE GROUND.

&&

NWS

The office that day

Everything else NWS Hastings, NE issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 19, 8:58 PM CDTSevere Thunderstorm WarningGIDFurnas, Gosper62 min
Jun 19, 9:25 PM CDTTornado WarningGIDFurnas35 min
Jun 19, 9:48 PM CDTTornado WarningGIDFurnas, Gosper27 min
Jun 19, 9:56 PM CDTTornado WarningGIDFurnas34 min
Jun 19, 10:02 PM CDTSevere Thunderstorm WarningGIDFurnas, Gosper, Harlan, Phelps58 min
Jun 19, 10:21 PM CDTAreal Flood WarningGIDFurnas, Gosper12 hr
Jun 19, 10:29 PM CDTTornado WarningGIDFurnas, Harlan46 min
Jun 19, 10:53 PM CDTSevere Thunderstorm WarningGIDFranklin, Harlan, Kearney, Phelps67 min
Jun 19, 11:14 PM CDTTornado WarningGIDFranklin, Harlan, Kearney, Phelps31 min
Jun 19, 11:15 PM CDTSevere Thunderstorm WarningGIDGreeley, Howard, Sherman, Valley45 min
Jun 19, 11:26 PM CDTSpecial Weather StatementGIDDawson34 min
Jun 19, 11:53 PM CDTSevere Thunderstorm WarningGIDGreeley, Howard52 min
Jun 19, 11:55 PM CDTSpecial Weather StatementGIDKearney35 min
Jun 20, 12:03 AM CDTSevere Thunderstorm WarningGIDDawson42 min
Jun 20, 12:21 AM CDTSpecial Weather StatementGIDPolk9 min
Jun 20, 12:29 AM CDTSpecial Weather StatementGIDGosper31 min
Jun 20, 12:33 AM CDTSpecial Weather StatementGIDAdams27 min
Jun 20, 12:37 AM CDTSevere Thunderstorm WarningGIDAdams, Buffalo, Hall, Kearney38 min
Jun 20, 12:37 AM CDTSevere Thunderstorm WarningGIDFurnas, Gosper38 min
Jun 20, 12:39 AM CDTSevere Thunderstorm WarningGIDGreeley, Howard, Merrick, Nance51 min
Jun 20, 12:42 AM CDTSevere Thunderstorm WarningGIDDawson48 min
Jun 20, 12:52 AM CDTTornado WarningGIDFurnas, Gosper23 min
Jun 20, 1:08 AM CDTSevere Thunderstorm WarningGIDFurnas, Gosper, Harlan, Phelps52 min
Jun 20, 1:24 AM CDTSevere Thunderstorm WarningGIDMerrick, Nance51 min
Jun 20, 1:29 AM CDTSpecial Weather StatementGIDValley31 min
Jun 20, 1:29 AM CDTSevere Thunderstorm WarningGIDDawson, Gosper, Phelps31 min
Jun 20, 1:42 AM CDTSevere Thunderstorm WarningGIDBuffalo, Kearney, Phelps48 min
Jun 20, 1:51 AM CDTSevere Thunderstorm WarningGIDPolk39 min
Jun 20, 2:02 AM CDTTornado WarningGIDMerrick, Polk28 min
Jun 20, 2:07 AM CDTSevere Thunderstorm WarningGIDAdams, Buffalo, Hall, Kearney38 min
Jun 20, 2:30 AM CDTSevere Thunderstorm WarningGIDGreeley, Howard, Nance14 min
Jun 20, 3:07 AM CDTSpecial Weather StatementGIDMerrick23 min
Jun 20, 3:25 AM CDTSevere Thunderstorm WarningGIDHamilton, Merrick, Polk, York35 min
Jun 20, 3:55 AM CDTSevere Thunderstorm WarningGIDMerrick, Polk, York32 min
Jun 20, 4:40 AM CDTRiver Flood WarningGIDBuffalo, Kearney8 days
Jun 20, 2:20 PM CDTTornado WarningGIDFurnas, Harlan40 min
Jun 20, 2:57 PM CDTTornado WarningGIDFurnas, Harlan33 min
Jun 20, 3:19 PM CDTSpecial Weather StatementGIDPhelps26 min
Jun 20, 3:23 PM CDTSevere Thunderstorm WarningGIDDawson, Gosper, Phelps52 min
Jun 20, 3:29 PM CDTTornado WarningGIDFurnas, Harlan, Phelps19 min
Jun 20, 3:29 PM CDTTornado WarningGIDBuffalo, Dawson, Gosper, Phelps31 min
Jun 20, 3:49 PM CDTSpecial Weather StatementGIDBuffalo26 min
Jun 20, 3:58 PM CDTTornado WarningGIDBuffalo, Dawson, Gosper, Phelps47 min
Jun 20, 4:03 PM CDTSevere Thunderstorm WarningGIDBuffalo, Sherman42 min
Jun 20, 4:24 PM CDTSpecial Weather StatementGIDClay, Fillmore, Hamilton, York51 min
Jun 20, 4:33 PM CDTTornado WarningGIDBuffalo, Sherman42 min
Jun 20, 4:40 PM CDTSevere Thunderstorm WarningGIDClay, Fillmore, Hall, Hamilton, Howard, Merrick and 1 more31 min
Jun 20, 4:46 PM CDTTornado WarningGIDBuffalo, Sherman44 min
Jun 20, 5:05 PM CDTSevere Thunderstorm WarningGIDClay, Fillmore, Greeley, Hall, Hamilton, Howard and 4 more55 min
Jun 20, 5:08 PM CDTSevere Thunderstorm WarningGIDSherman, Valley52 min
Jun 20, 5:18 PM CDTTornado WarningGIDHamilton, York27 min
Jun 20, 5:25 PM CDTTornado WarningGIDGreeley, Howard, Sherman, Valley50 min
Jun 20, 5:35 PM CDTSpecial Weather StatementGIDThayer25 min
Jun 20, 5:39 PM CDTTornado WarningGIDHamilton, Merrick, Polk, York36 min
Jun 20, 5:44 PM CDTTornado WarningGIDPolk, York31 min
Jun 20, 5:53 PM CDTSevere Thunderstorm WarningGIDGreeley, Hamilton, Howard, Merrick, Nance, Polk and 3 more52 min
Jun 20, 6:00 PM CDTAreal Flood WarningGIDGreeley, Howard, Sherman, Valley6 hr
Jun 20, 6:20 PM CDTSpecial Weather StatementGIDFurnas25 min
Jun 20, 6:31 PM CDTSevere Thunderstorm WarningGIDFurnas44 min
Jun 20, 6:43 PM CDTSevere Thunderstorm WarningGIDMerrick, Nance, Polk17 min

Nearby

Tornado Warnings in Nebraska, 2011Every tornado warning in 2011Tornadoes in 2011

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.