Alert archive / Nebraska / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 290, NWS North Platte, NE

August 11, 20114 counties in Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at Aug 11, 2011, 9:30 PM CDT for 4 counties in Nebraska. It was in force for 45 min. 3 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: Aug 11, 2011, 9:30 PM CDT (02:30 UTC)
Expired: Aug 11, 2011, 10:15 PM CDT
In force: 45 min
Issued by: NWS North Platte, NE
Area: Storm-based polygon
Hail: 2.5 in
Wind: 60.0 mph

Counties Blaine County, NE, Brown County, NE, Cherry County, NE, Thomas County, NE

The radar

The North Platte radar (KLNX), 42 km from the middle of the area, began a volume at 02:30 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

Time	Report	Where	Remark
Aug 11, 9:53 PM CDT	TORNADO	1 Wnw Purdum, NE	TORNADO SNAPPED OFF SEVERAL LARGE LIMBS FROM ELM TREES THAT WERE DISPLACED UP TO 300 FEET TO THE SOUTH. FOUR POWER POLES WERE BROKEN ON THE SOUTH SIDE OF THE ROAD AND AROUND 250 FEET OF BARB WIRE FENCING ON THE NORTH AND SOUTH SIDES OF THE ROAD WAS DAMAGED.
Aug 11, 10:02 PM CDT	HAIL 1.25	1 E Purdum, NE	NOTED WINDS WERE FROM THE SOUTH THEN RAPIDLY SWITCHED AROUND FROM THE NORTH AS THE STORM PASSED.
Aug 11, 10:22 PM CDT	FUNNEL CLOUD	5 Se Purdum, NE

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 one storm report to this severe thunderstorm warning; the first came 32 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.

Issued	Product	Office	Lasted
Aug 11, 4:38 PM CDT	Tornado Watch	SPC	9 hr

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 2.5 hours before the alert went out and 118 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: 2513 J/kg
Mixed-layer CIN: -69 J/kg
Mixed-layer LCL: 1288 m above ground
0-6 km bulk shear: 45 kt
0-1 km storm-relative helicity: 97 m²/s²
0-3 km storm-relative helicity: 281 m²/s²
Significant tornado parameter: 1.9
Supercell composite: 19.6

Open this sounding in Storm Lab

The text

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

744 
WUUS53 KLBF 120230
SVRLBF
NEC009-017-031-171-120315-
/O.NEW.KLBF.SV.W.0290.110812T0230Z-110812T0315Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
930 PM CDT THU AUG 11 2011

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHERN BLAINE COUNTY IN NORTH CENTRAL NEBRASKA...
  SOUTHWESTERN BROWN COUNTY IN NORTH CENTRAL NEBRASKA...
  SOUTHEASTERN CHERRY COUNTY IN NORTH CENTRAL NEBRASKA...
  NORTHEASTERN THOMAS COUNTY IN NORTH CENTRAL NEBRASKA...

* UNTIL 1015 PM CDT

* AT 930 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING LARGE DESTRUCTIVE HAIL UP
  TO TENNIS BALL SIZE...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS
  STORM WAS LOCATED 8 MILES NORTHWEST OF ELSMERE...OR 23 MILES
  NORTHEAST OF THEDFORD...AND MOVING SOUTHEAST AT 25 MPH.

* LOCATIONS IMPACTED INCLUDE...
  LONG LAKE STATE WILDLIFE MANAGEMENT AREA...ELSMERE...PURDUM...
  WILLOW LAKE STATE WILDLIFE MANAGEMENT AREA...HIGHWAY 2 MILE MARKER
  220 AND HIGHWAY 7 MILE MARKER 10.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER
HOUR...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR
YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR
HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE
INTO AREAS WHERE WATER COVERS THE ROAD.

&&

LAT...LON 4202 9970 4190 10041 4227 10055 4244 10023
TIME...MOT...LOC 0230Z 309DEG 23KT 4222 10026
WIND...HAIL 60MPH 2.50IN

$$

SCHULTZ

3 follow-up statements

984 
WWUS53 KLBF 120245
SVSLBF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
945 PM CDT THU AUG 11 2011

NEC009-017-031-171-120315-
/O.CON.KLBF.SV.W.0290.000000T0000Z-110812T0315Z/
BLAINE NE-BROWN NE-THOMAS NE-CHERRY NE-
945 PM CDT THU AUG 11 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHEASTERN
CHERRY...NORTHEASTERN THOMAS...SOUTHWESTERN BROWN AND NORTHERN BLAINE
COUNTIES UNTIL 1015 PM CDT...

AT 946 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING LARGE DESTRUCTIVE HAIL UP TO
TENNIS BALL SIZE...AND DESTRUCTIVE WINDS IN EXCESS OF 70 MPH.  THIS
STORM WAS LOCATED NEAR ELSMERE...OR 21 MILES NORTHEAST OF THEDFORD...
MOVING SOUTHEAST AT 25 MPH.

LOCATIONS IMPACTED INCLUDE...
  ELSMERE...PURDUM...WILLOW LAKE STATE WILDLIFE MANAGEMENT AREA...
  HIGHWAY 2 MILE MARKER 220 AND HIGHWAY 7 MILE MARKER 10.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. TORNADOES CAN
DEVELOP QUICKLY FROM SEVERE THUNDERSTORMS. ALTHOUGH NOT IMMEDIATELY
LIKELY...IF A TORNADO IS SPOTTED ACT QUICKLY AND MOVE TO A PLACE OF
SAFETY INSIDE A STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL
INTERIOR ROOM.

&&

LAT...LON 4221 10052 4241 10019 4202 9970 4190 10041
TIME...MOT...LOC 0246Z 309DEG 23KT 4214 10023
WIND...HAIL 70MPH 2.50IN

$$

SCHULTZ

516 
WWUS53 KLBF 120255
SVSLBF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
955 PM CDT THU AUG 11 2011

NEC009-017-031-171-120315-
/O.CON.KLBF.SV.W.0290.000000T0000Z-110812T0315Z/
BLAINE NE-BROWN NE-THOMAS NE-CHERRY NE-
955 PM CDT THU AUG 11 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHEASTERN
CHERRY...NORTHEASTERN THOMAS...SOUTHWESTERN BROWN AND NORTHERN BLAINE
COUNTIES UNTIL 1015 PM CDT...

AT 955 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING LARGE DESTRUCTIVE HAIL UP TO
TENNIS BALL SIZE...AND DESTRUCTIVE WINDS IN EXCESS OF 70 MPH.  THIS
STORM WAS LOCATED NEAR ELSMERE...OR 20 MILES NORTHWEST OF BREWSTER...
MOVING SOUTHEAST AT 25 MPH.

LOCATIONS IMPACTED INCLUDE...
  HIGHWAY 7 MILE MARKER 10.

A TORNADO WARNING IS ALSO IN EFFECT UNTIL 1015 PM CDT FOR NORTHWESTERN
BLAINE...SOUTHEASTERN CHERRY...AND NORTHEASTERN THOMAS COUNTIES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. TORNADOES CAN
DEVELOP QUICKLY FROM SEVERE THUNDERSTORMS. ALTHOUGH NOT IMMEDIATELY
LIKELY...IF A TORNADO IS SPOTTED ACT QUICKLY AND MOVE TO A PLACE OF
SAFETY INSIDE A STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL
INTERIOR ROOM.

&&

LAT...LON 4221 10052 4241 10019 4202 9970 4190 10041
TIME...MOT...LOC 0254Z 309DEG 23KT 4211 10018
WIND...HAIL 70MPH 2.50IN

$$

SCHULTZ

102 
WWUS53 KLBF 120317
SVSLBF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
1017 PM CDT THU AUG 11 2011

NEC009-017-031-171-120327-
/O.EXP.KLBF.SV.W.0290.000000T0000Z-110812T0315Z/
BLAINE NE-BROWN NE-THOMAS NE-CHERRY NE-
1017 PM CDT THU AUG 11 2011

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN CHERRY...
NORTHEASTERN THOMAS...SOUTHWESTERN BROWN AND NORTHERN BLAINE COUNTIES
HAS EXPIRED...

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

REMEMBER...A TORNADO WARNING REMAINS IN EFFECT FOR WESTERN BLAINE AND
NORTHEASTERN THOMAS COUNTIES UNTIL 1045 PM CDT.

LAT...LON 4221 10052 4241 10019 4202 9970 4190 10041
TIME...MOT...LOC 0255Z 309DEG 23KT 4210 10017

$$

SCHULTZ

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 North Platte, NE wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 11, 9:03 PM CDT, 27 minutes earlier.

Area forecast discussion, Aug 11, 9:03 PM CDT, 27 minutes before

AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE NORTH PLATTE NE
903 PM CDT THU AUG 11 2011

.UPDATE...
ADDED COUNTIES BLAINE...LOUP...GARFIELD AND WHEELER TO TORNADO
WATCH.

&&

.PREV DISCUSSION... /ISSUED 158 PM CDT THU AUG 11 2011/

DISCUSSION...
ANOTHER ROUND OF SEVERE WEATHER IS EXPECTED TO DEVELOP LATE THIS
AFTERNOON AND OVERNIGHT AS WINDS ALOFT REMAIN STRONG...LAPSE RATES
STEEP AND MOIST AND FREEZING LEVELS ARE AROUND 11500 FT AGL. SFC
ANALYSIS...RADAR...SATELLITE...THE HRRR AND CONSENSUS OF NAM...SREF
AND GFS SUGGEST NCNTL NEB ALONG AND EAST OF HIGHWAY 83 AND ALONG AND
NORTH OF NEBRASKA HIGHWAY 2 WILL BE THE MOST LIKELY OR CONGESTED AREA
FOR STORM ACTIVITY. THE RUC IS SUGGESTING THE REST OF THE FCST AREA
WILL BE SOMEWHAT CAPPED LIMITING STORM COVERAGE TO MAINLY ISOLATED
ACTIVITY. THE OVERALL ENVIRONMENT FEATURES HIGH CAPE BUT DRY AIR
ALOFT SOUTH AND WEST BUT HIGH CAPE AND MOIST ALOFT ACROSS THE
AREA OF GREATEST INTEREST...AS MENTIONED ABOVE. THE FATE OF THE HEAVY
CUMULUS BUILD UP ACROSS SWRN NEB REMAINS TO BE SEEN.

STORM ACTIVITY COULD COMMENCE MID TO LATE THIS AFTERNOON AND
CONTINUE MOST OF THE NIGHT BEFORE SETTLING DOWN EARLY FRIDAY MORNING.

SOME LINGERING SHOWER AND THUNDERSTORM ACTIVITY EXITS THE FCST AREA
TO THE EAST FRIDAY MORNING WITH CANADIAN AIR BUILDING IN FOR THE
WEEKEND. THIS HIGH WILL BUILD VERY SLOWLY THROUGH THE UPPER MIDWEST
SATURDAY AND SUNDAY PROVIDING COOL AND STABLE EAST AND SOUTHEAST SFC
WINDS WITH HIGHS IN THE 70S TO LOWER 80S MOST AREAS. THE EXCEPTION
WOULD BE ACROSS THE FAR WEST AND SOUTHWEST WHERE WARM AIR COULD
BEGIN SPREADING NORTH OUT OF ERN COLO AND WRN KS.

THE GFS AND 00Z ECMWF SUGGEST ISOLATED TO PERHAPS SCATTERED
THUNDERSTORMS DEVELOPING ALONG A WARM FRONT MONDAY NIGHT...MAINLY
EAST OF HIGHWAY 83. THEREAFTER THE GREAT UPPER LEVEL RIDGE OF THIS
SUMMER BUILDS NORTH AND BRUSHES NEBRASKA WITH HUMID 80S TO LOWER 90S
TUESDAY AND WEDNESDAY. A COLD FRONT SHOULD BE MAKING ITS WAY INTO THE
FCST AREA WEDNESDAY NIGHT WITH COOLER WEATHER FOR THURSDAY. THE
SLOWER GFS AND GEM WERE FAVORED OVER THE FASTER 00Z ECMWF WHICH
DRIVES THE COLD FRONT THROUGH 1 DAY EARLIER. ISOLATED THUNDERSTORMS
ARE OPERATING TUESDAY NIGHT AND WEDNESDAY NIGHT FOR THE HIGH CAPE
ENVIRONMENT AND APPROACHING COLD FRONT. OTHERWISE THE ATMOSPHERE
SHOULD REMAIN CAPPED AS H7 TEMPS RISE TOWARD 15-16C.

AVIATION...
SCATTERED SEVERE STORMS ARE EXPECTED FROM 21 UTC THROUGH AT LEAST 06
UTC. IFR CONDITIONS...HAIL...AND SURFACE WINDS OF 50 KTS OR GREATER
ARE EXPECTED WITH THE STORMS. HOWEVER...CONFIDENCE IN IMPACTS AT ANY
GIVEN LOCALE IS MODEST AT BEST GIVEN SCATTERED NATURE OF THE STORMS.
A WEAK COLD FRONT WILL MOVE ACROSS THE REGION 06 TO 12 UTC...AND IS
EXPECTED TO BRING YET ANOTHER ROUND OF TSRA TO NORTHERN NEB. IN THE
WAKE OF THE STORMS AND BEHIND THE FRONT...STRATUS COULD FORM...BUT
LOW CONFIDENCE PREVENTS ITS INCLUSION IN THE KLBF OR KVTN TAFS.

&&

.LBF WATCHES/WARNINGS/ADVISORIES...TORNADO WATCH 767 UNTIL
 MIDNIGHT CDT NE004>010-023>029.

&&

SHORT TERM/AVIATION...POWER

Hazardous weather outlook, Aug 11, 3:35 PM CDT, 5 hours 55 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE NORTH PLATTE NE
335 PM CDT THU AUG 11 2011

NEZ004>010-022>029-035>038-056>059-069>071-094-122045-
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-
335 PM CDT THU AUG 11 2011 /235 PM MDT THU AUG 11 2011/

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

.DAY ONE...TONIGHT.

SEVERE THUNDERSTORMS ARE POSSIBLE OVER ALL OF THE WESTERN AND NORTH
CENTRAL PARTS OF NEBRASKA INTO TONIGHT. SCATTERED STORMS CAPABLE OF
PRODUCING VERY LARGE HAIL AND DAMAGING WINDS ARE LIKELY THROUGH THE
EVENING HOURS. AN ISOLATED TORNADO IS POSSIBLE. THE PRIMARY THREAT
WILL TRANSITION TO ONE OF DAMAGING WINDS AND HEAVY RAIN OVERNIGHT.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY.

A CHANCE OF THUNDERSTORMS WILL LINGER OVER NORTH CENTRAL NEBRASKA ON
FRIDAY. SLIGHT CHANCES FOR STORMS WILL THEN RETURN EARLY NEXT WEEK.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED LATE THIS AFTERNOON INTO TONIGHT.

&&

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

CJS

In the hours before

Local storm report, Aug 11, 8:25 PM CDT, 1 hour 5 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
825 PM CDT THU AUG 11 2011

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

0815 PM     FUNNEL CLOUD     3 SW JOHNSTOWN          42.54N 100.10W
08/11/2011                   BROWN              NE   TRAINED SPOTTER

&&

JAHSENMA

Local storm report, Aug 11, 8:38 PM CDT, 52 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
838 PM CDT THU AUG 11 2011

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

0832 PM     HAIL             29 S VALENTINE          42.45N 100.55W
08/11/2011  E1.25 INCH       CHERRY             NE   PUBLIC

&&

JAHSENMA

Local storm report, Aug 11, 8:45 PM CDT, 45 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
845 PM CDT THU AUG 11 2011

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

0835 PM     HAIL             29 S VALENTINE          42.45N 100.55W
08/11/2011  E2.75 INCH       CHERRY             NE   PUBLIC

&&

JAHSENMA

Local storm report, Aug 11, 8:59 PM CDT, 31 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
859 PM CDT THU AUG 11 2011

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

0854 PM     TORNADO          10 S JOHNSTOWN          42.43N 100.06W
08/11/2011                   BROWN              NE   TRAINED SPOTTER

&&

JAHSENMA

Local storm report, Aug 11, 9:04 PM CDT, 26 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
904 PM CDT THU AUG 11 2011

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

0902 PM     TORNADO          10 S JOHNSTOWN          42.43N 100.06W
08/11/2011                   BROWN              NE   FIRE DEPT/RESCUE

            TORNADO ON THE GROUND 10 MILES SOUTH AND ONE MILE EAST OF
            JOHNSTOWN

&&

BROOKS

Local storm report, Aug 11, 9:20 PM CDT, 10 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
920 PM CDT THU AUG 11 2011

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

0840 PM     HAIL             12 NW IMPERIAL          40.64N 101.80W
08/11/2011  E2.50 INCH       CHASE              NE   PUBLIC

&&

JAHSENMA

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 11, 7:03 PM CDT	Severe Thunderstorm Warning	LBF	Boyd, Holt, Keya Paha, Rock	42 min
Aug 11, 7:46 PM CDT	Severe Thunderstorm Warning	LBF	Boyd, Holt, Keya Paha, Rock	44 min
Aug 11, 7:48 PM CDT	Tornado Warning	LBF	Brown, Cherry	27 min
Aug 11, 7:55 PM CDT	Severe Thunderstorm Warning	LBF	Brown, Keya Paha, Rock	50 min
Aug 11, 8:02 PM CDT	Severe Thunderstorm Warning	LBF	Chase, Perkins	28 min
Aug 11, 8:07 PM CDT	Tornado Warning	LBF	Brown, Cherry	23 min
Aug 11, 8:21 PM CDT	Tornado Warning	LBF	Cherry	39 min
Aug 11, 8:30 PM CDT	Severe Thunderstorm Warning	LBF	Chase	45 min
Aug 11, 8:30 PM CDT	Tornado Warning	LBF	Brown, Cherry	30 min
Aug 11, 8:40 PM CDT	Severe Thunderstorm Warning	LBF	Brown, Holt, Keya Paha, Rock	51 min
Aug 11, 8:58 PM CDT	Tornado Warning	LBF	Brown	32 min
Aug 11, 8:59 PM CDT	Tornado Warning	LBF	Cherry	31 min
Aug 11, 9:50 PM CDT	Tornado Warning	LBF	Blaine, Cherry, Thomas	25 min
Aug 11, 10:14 PM CDT	Tornado Warning	LBF	Blaine, Thomas	31 min
Aug 11, 10:29 PM CDT	Severe Thunderstorm Warning	LBF	Blaine, Custer, Loup	46 min
Aug 11, 10:38 PM CDT	Severe Thunderstorm Warning	LBF	Brown, Cherry	52 min
Aug 11, 10:45 PM CDT	Severe Thunderstorm Warning	LBF	Blaine, Custer	45 min
Aug 11, 11:17 PM CDT	Severe Thunderstorm Warning	LBF	Custer, Garfield, Loup	43 min
Aug 11, 11:25 PM CDT	Severe Thunderstorm Warning	LBF	Blaine, Brown, Cherry, Thomas	65 min
Aug 12, 12:09 AM CDT	Severe Thunderstorm Warning	LBF	Blaine, Custer, Loup	51 min
Aug 12, 1:00 AM CDT	Severe Thunderstorm Warning	LBF	Custer, Loup	45 min
Aug 12, 1:24 AM CDT	Severe Thunderstorm Warning	LBF	Cherry, Sheridan	66 min
Aug 12, 1:57 AM CDT	Severe Thunderstorm Warning	LBF	Cherry	27 min
Aug 12, 2:41 AM CDT	Severe Thunderstorm Warning	LBF	Cherry	49 min
Aug 12, 3:02 AM CDT	Severe Thunderstorm Warning	LBF	Cherry	32 min
Aug 12, 3:57 AM CDT	Areal Flood Advisory	LBF	Brown, Cherry, Rock	6 hr

Nearby

Severe Thunderstorm Warnings in Nebraska, 2011 Every severe thunderstorm warning 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.