Alert archive / Nebraska / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 23, NWS North Platte, NE

April 14, 2012Frontier County, Lincoln County, Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at Apr 14, 2012, 3:46 PM CDT for Frontier County, Lincoln County, Nebraska. It was in force for 44 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Apr 14, 2012, 3:46 PM CDT (20:46 UTC)
Expired: Apr 14, 2012, 4:30 PM CDT
In force: 44 min
Issued by: NWS North Platte, NE
Area: Storm-based polygon
Hail: 1.0 in
Wind: 50.0 mph

Counties Frontier County, NE, Lincoln County, NE

The radar

The North Platte radar (KLNX), 141 km from the middle of the area, began a volume at 20:46 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.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

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
Apr 14, 2:33 PM CDT	Tornado Watch	SPC	8 hr

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 12:00Z, 8.8 hours before the alert went out and 49 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1610 m above ground
0-6 km bulk shear: 69 kt
0-1 km storm-relative helicity: 192 m²/s²
0-3 km storm-relative helicity: 202 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

994 
WUUS53 KLBF 142046
SVRLBF
NEC063-111-142130-
/O.NEW.KLBF.SV.W.0023.120414T2046Z-120414T2130Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
346 PM CDT SAT APR 14 2012

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WESTERN FRONTIER COUNTY IN SOUTHWEST NEBRASKA...
  SOUTHEASTERN LINCOLN COUNTY IN SOUTHWEST NEBRASKA...

* UNTIL 430 PM CDT

* AT 341 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL.  THIS
  STORM WAS LOCATED 10 MILES NORTH OF RED WILLOW RESERVOIR STATE
  RECREATION AREA...OR 12 MILES SOUTHWEST OF CURTIS...AND MOVING
  NORTH AT 25 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  MAYWOOD AND CURTIS AROUND 410 PM CDT.
  HANSEN MEMORIAL RESERVE STATE WILDLIFE MANAGEMENT AREA AROUND 425
  PM CDT.

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.

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.

THIS IS A SUPERCELL THUNDERSTORM. DUE TO THE ROTATING NATURE OF THESE
STORMS...THEY ARE CAPABLE OF PRODUCING ALL TYPES OF SEVERE WEATHER...
INCLUDING EXTREMELY LARGE HAIL...DESTRUCTIVE STRAIGHT LINE WINDS AND
POSSIBLY TORNADOES. MOVE QUICKLY TO A SAFE SHELTER...PREFERABLY INTO
AN INTERIOR ROOM...SUCH AS A BATHROOM OR A CLOSET...OR INTO A
BASEMENT.

&&

LAT...LON 4089 10075 4081 10029 4042 10050 4044 10077
TIME...MOT...LOC 2046Z 193DEG 20KT 4053 10066
WIND...HAIL <50MPH 1.00IN

$$

STOPPKOTTE

1 follow-up statement

984 
WWUS53 KLBF 142102
SVSLBF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
402 PM CDT SAT APR 14 2012

NEC063-111-142130-
/O.CON.KLBF.SV.W.0023.000000T0000Z-120414T2130Z/
FRONTIER NE-LINCOLN NE-
402 PM CDT SAT APR 14 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTH CENTRAL
LINCOLN AND WESTERN FRONTIER COUNTIES UNTIL 430 PM CDT...

AT 400 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL.  THIS
STORM WAS LOCATED NEAR MAYWOOD...OR NEAR CURTIS...MOVING NORTH AT 25
MPH.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  HANSEN MEMORIAL RESERVE STATE WILDLIFE MANAGEMENT AREA AROUND 420
  PM CDT.

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.

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 4089 10075 4081 10029 4042 10050 4044 10077
TIME...MOT...LOC 2102Z 193DEG 20KT 4065 10060
WIND...HAIL <50MPH 1.00IN

$$

STOPPKOTTE

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 Apr 14, 3:44 PM CDT, 2 minutes earlier.

Area forecast discussion, Apr 14, 3:44 PM CDT, 2 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORTH PLATTE NE
344 PM CDT SAT APR 14 2012

.SYNOPSIS...
CLOSED LOW OVER THE 4 CORNERS AREA THIS AFTERNOON WITH DEEPENING
SURFACE LOW OVER NORTHEAST COLORADO. WARM FRONT EXTENDING FROM
THIS SURFACE LOW INTO SOUTHWEST NEBRASKA.

&&

.DISCUSSION...

MODELS IN GOOD AGREEMENT. CLEARING OVER SOUTHWEST NEBRASKA WITH CU
FIELDS DEVELOPING WARM FRONT FRONT SURFACE LOW OVER NORTHEAST
COLORADO AND WARM FRONT INTO SOUTHWEST NEBRASKA. DRYLINE BACK INTO
NORTHEAST COLORADO. TORNADO WATCH IN EFFECT FOR SOUTHWEST...PORTIONS
OF WEST CENTRAL AND NORTH CENTRAL NEBRASKA. TEMPERATURES HAVE
WARMED SOME FOR OVERNIGHT LOWS HAVE KEPT MENTION OF RAIN SNOW MIX
OVER HIGHER ELEVATION OF THE EAST NEBRASKA PANHANDLE. STRONG
GRADIENT WITH COLD AIR ADVECTION BEHIND THE FRONT ON SUNDAY. A
HIGH WIND WARNING IS STILL NOT OUT OF THE QUESTION. A RAW DAY
ACROSS THE AREA AS UPPER LOW SHEARS OUT OVER NORTH PLATTE THROUGH
THE DAY ON SUNDAY. UPPER LOW LOOSENS ITS GRIP SUNDAY NIGHT BUT A
SECONDARY WAVE MOVING IN FAST NORTHWEST FLOW WILL CLIP THE
FORECAST AREA AGAIN MONDAY AFTERNOON. WEAK SYSTEMS CONTINUE
THROUGH THE NORTHWEST FLOW THROUGH THE FIRST PART OF THE WEEK
MOVING ACROSS THE DAKOTAS WITH SOME SHOWERS AND THUNDERSTORMS INTO
NORTHERN NEBRASKA AND NORMAL TEMPERATURES THROUGH THE END OF THE
WEEK.

&&

.AVIATION...
ALTHOUGH NOT CONTINUOUS...THUNDERSTORMS WILL IMPACT THE TAF SITES
THROUGH INTO SUNDAY. THIS WILL OCCUR AS AN AREA OF LOW PRESSURE OVER
EASTERN COLORADO INTENSIFIES AND MOVES NORTHEAST INTO  WESTERN
NEBRASKA TONIGHT. THUNDERSTORMS ARE EXPECTED TO DEVELOP OVER
SOUTHWEST NEBRASKA AND NORTHWEST KANSAS NEAR A WARM FRONT OVER
SOUTHERN NEBRASKA ...THEN MOVE NORTHEAST. ANY STORMS THAT DEVELOP
THROUGH THE EVENING HOURS WILL HAVE THE POTENTIAL FOR LARGE
HAIL...VERY STRONG WINDS...LIGHTNING AND TORNADOES. THE SURFACE LOW
WILL MOVE INTO EASTERN SOUTH DAKOTA BY SUNDAY MORNING
WHICH WILL PUSH THE ASSOCIATED COLD FRONT ACROSS MUCH OF WESTERN
AND NORTH CENTRAL NEBRASKA. STRONG WINDS ARE LIKELY BEHIND THE
FRONT...WITH GUSTS UP TO 50 MPH POSSIBLE IN SOME LOCATIONS.

&&

.LBF WATCHES/WARNINGS/ADVISORIES...WIND ADVISORY FROM
7 AM CDT /6 AM MDT/ TO 7 PM CDT /6 PM MDT/
SUNDAY FOR NEZ004-005-022>025-035>037-056>059-069>071-094.

WIND ADVISORY FROM 1 PM TO 7 PM CDT SUNDAY FOR NEZ006>010-
026>029-038.

&&

SHORT TERM/EXTENDED...POWER
AVIATION...BROOKS

Hazardous weather outlook, Apr 14, 3:37 PM CDT, 9 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE NORTH PLATTE NE
337 PM CDT SAT APR 14 2012

NEZ004>010-022>029-035>038-056>059-069>071-094-152045-
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-
337 PM CDT SAT APR 14 2012 /237 PM MDT SAT APR 14 2012/

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

.DAY ONE...TONIGHT.

THUNDERSTORMS ARE EXPECTED THROUGH MID EVENING ACROSS MUCH OF
SOUTHWEST INTO NORTH CENTRAL NEBRASKA. SOME OF THESE STORMS MAY
CONTAIN VERY LARGE HAIL AND ISOLATED STRONG TORNADOES. THE STORMS
WILL TRACK NORTHEAST.

A MODERATE RISK FOR SEVERE THUNDERSTORMS EXTENDS GENERALLY EAST
OF A LINE FROM STOCKVILLE...THROUGH SUTHERLAND...MULLEN...AND
VALENTINE. JUST TO THE EAST...A HIGH RISK AREA EXTENDS GENERALLY
EAST OF A LINE FROM CALLAWAY...THROUGH BREWSTER...AND ONEILL.
PLEASE STAY TUNED FOR UPDATED INFORMATION AS THIS SIGNIFICANT
EVENT UNFOLDS.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY.

AS THE STRONG STORM SYSTEM LIFTS FROM EASTERN SOUTH DAKOTA INTO
MINNESOTA ON SUNDAY...STRONG NORTHWEST WINDS OF 25 TO 35 MPH WITH
GUSTS TO AROUND 50 MPH WILL OCCUR ALONG WITH AN AREA OF SHOWERS
LIFTING ACROSS THE OUTLOOK AREA. THERE IS THE POTENTIAL FOR A MIX
OF RAIN AND SNOW FOR AREAS WEST OF VALENTINE THROUGH OGALLALA
SUNDAY MORNING.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL LIKELY BE NEEDED INTO THIS EVENING.

&&

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

BROOKS

In the hours before

Local storm report, Apr 14, 11:45 AM CDT, 4 hours 1 minute before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
1145 AM CDT SAT APR 14 2012

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

1144 AM     HAIL             6 S BARTLETT            41.80N 98.55W
04/14/2012  E0.25 INCH       WHEELER            NE   EMERGENCY MNGR

            GROUND COVERED.

&&

JSWEET

Local storm report, Apr 14, 11:52 AM CDT, 3 hours 54 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
1152 AM CDT SAT APR 14 2012

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

1151 AM     HAIL             7 E BURWELL             41.78N 99.00W
04/14/2012  E0.25 INCH       GARFIELD           NE   PUBLIC

&&

CVP

Local storm report, Apr 14, 11:53 AM CDT, 3 hours 53 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
1153 AM CDT SAT APR 14 2012

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

1152 AM     HAIL             9 ESE ERICSON           41.73N 98.52W
04/14/2012  E2.75 INCH       GREELEY            NE   PUBLIC

&&

JSWEET

Special weather statement, Apr 14, 12:06 PM CDT, 3 hours 40 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
1206 PM CDT SAT APR 14 2012

NEZ028-029-141745-
GARFIELD NE-WHEELER NE-
1206 PM CDT SAT APR 14 2012

...SIGNIFICANT WEATHER ADVISORY FOR WHEELER AND EXTREME EASTERN
GARFIELD COUNTIES UNTIL 1245 PM CDT...

AT 1204 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING
A STRONG THUNDERSTORM 6 MILES NORTH OF ERICSON...OR 22 MILES
EAST OF BURWELL...MOVING EAST AT 35 MPH.

HAIL UP TO THE SIZE OF NICKELS AND WIND GUSTS UP TO 50 MPH ARE
EXPECTED WITH THIS STORM...ALONG WITH HEAVY RAIN AND FREQUENT
DANGEROUS LIGHTNING.

LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...
  ERICSON...
  BARTLETT...
  PIBEL LAKE STATE RECREATION AREA...
  FOUR CORNERS...

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.

BROOKS

Special weather statement, Apr 14, 12:29 PM CDT, 3 hours 17 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
1229 PM CDT SAT APR 14 2012

NEZ094-141815-
WESTERN CHERRY NE-
1129 AM MDT SAT APR 14 2012

...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN CHERRY COUNTY UNTIL
1215 PM MDT...

AT 1128 AM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING
A STRONG THUNDERSTORM NEAR SHELL LAKE STATE WILDLIFE MANAGEMENT
AREA...OR 10 MILES NORTHEAST OF GORDON...MOVING NORTHEAST AT 45 MPH.

HAIL UP TO THE SIZE OF PENNIES AND WIND GUSTS UP TO 40 MPH ARE
EXPECTED WITH THIS STORM.

LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...
  HIGHWAY 61 CROSSING THE NIOBRARA RIVER...
  MERRIMAN...
  ELI...

BROOKS

Local storm report, Apr 14, 12:42 PM CDT, 3 hours 4 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
1242 PM CDT SAT APR 14 2012

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

1220 PM     HAIL             7 NW BARTLETT           41.96N 98.65W
04/14/2012  E0.25 INCH       WHEELER            NE   PUBLIC

&&

JSWEET

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 14, 11:21 AM CDT	Severe Thunderstorm Warning	LBF	Wheeler	54 min
Apr 14, 11:28 AM CDT	Severe Thunderstorm Warning	LBF	Garfield	47 min
Apr 14, 12:14 PM CDT	Severe Thunderstorm Warning	LBF	Holt, Wheeler	28 min
Apr 14, 3:14 PM CDT	Wind Advisory	LBF	Arthur, Blaine, Boyd, Brown, Chase, Cherry and 20 more	31 hr
Apr 14, 4:01 PM CDT	Severe Thunderstorm Warning	LBF	Lincoln, Logan, McPherson	44 min
Apr 14, 4:13 PM CDT	Severe Thunderstorm Warning	LBF	Logan, Thomas	47 min
Apr 14, 4:20 PM CDT	Severe Thunderstorm Warning	LBF	Lincoln, Logan, McPherson	25 min
Apr 14, 4:22 PM CDT	Severe Thunderstorm Warning	LBF	Lincoln, Logan	38 min
Apr 14, 4:28 PM CDT	Tornado Warning	LBF	Logan, McPherson	32 min
Apr 14, 4:45 PM CDT	Severe Thunderstorm Warning	LBF	Lincoln, Logan, McPherson	30 min
Apr 14, 5:00 PM CDT	Severe Thunderstorm Warning	LBF	Logan	45 min
Apr 14, 5:08 PM CDT	Severe Thunderstorm Warning	LBF	Lincoln	22 min
Apr 14, 5:19 PM CDT	Flash Flood Warning	LBF	Logan	4 hr
Apr 14, 5:19 PM CDT	Tornado Warning	LBF	Lincoln	26 min
Apr 14, 5:41 PM CDT	Areal Flood Advisory	LBF	Lincoln	6 hr
Apr 14, 5:44 PM CDT	Tornado Warning	LBF	Lincoln	16 min
Apr 14, 6:01 PM CDT	Tornado Warning	LBF	Lincoln	29 min
Apr 14, 6:09 PM CDT	Severe Thunderstorm Warning	LBF	Custer	51 min
Apr 14, 6:09 PM CDT	Severe Thunderstorm Warning	LBF	Lincoln	51 min
Apr 14, 6:19 PM CDT	Tornado Warning	LBF	Lincoln	41 min
Apr 14, 6:33 PM CDT	Severe Thunderstorm Warning	LBF	Lincoln, Logan	27 min
Apr 14, 6:34 PM CDT	Tornado Warning	LBF	Blaine, Custer, Loup	26 min
Apr 14, 6:41 PM CDT	Tornado Warning	LBF	Lincoln	33 min
Apr 14, 6:54 PM CDT	Flash Flood Warning	LBF	Lincoln, Logan	4 hr
Apr 14, 6:55 PM CDT	Severe Thunderstorm Warning	LBF	Lincoln, Logan	65 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 2012 Every severe thunderstorm warning in 2012

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.