Alert archive / Nebraska / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 26, NWS North Platte, NE

April 14, 2012Lincoln County, Logan County, McPherson County, Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at Apr 14, 2012, 4:20 PM CDT for Lincoln County, Logan County, McPherson County, Nebraska. It was in force for 25 min. 5 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
Apr 14, 2012, 4:20 PM CDT (21:20 UTC)
Expired
Apr 14, 2012, 4:45 PM CDT
In force
25 min
Issued by
NWS North Platte, NE
Area
Storm-based polygon
Hail
1.0 in
Wind
50.0 mph

Counties Lincoln County, NE, Logan County, NE, McPherson County, NE

The radar

The North Platte radar (KLNX), 63 km from the middle of the area, began a volume at 21:23 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
Apr 14, 4:23 PM CDTHAIL 14 S Ringgold, NEHAIL COVERING THE GROUND WITH THE LARGESTTHE SIZE OF QUARTERS.
Apr 14, 4:25 PM CDTHAIL 0.510 N North Platte, NE
Apr 14, 4:30 PM CDTHAIL 17 Nw North Platte, NE
Apr 14, 4:30 PM CDTHAIL 18 Sw Stapleton, NE
Apr 14, 4:40 PM CDTHAIL 1.757 W Stapleton, NE

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The watch it was issued in

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

IssuedProductOfficeLasted
Apr 14, 2:33 PM CDTTornado WatchSPC8 hr

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 12:00Z, 9.3 hours before the alert went out and 34 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, N. Platte/Lee Bi, NE at 12:00Z on 2012-04-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, N. Platte/Lee Bi, NE at 12:00Z on 2012-04-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 192 square meters per square second.1939587897117Sfc1 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
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.

964 
WUUS53 KLBF 142120
SVRLBF
NEC111-113-117-142145-
/O.NEW.KLBF.SV.W.0026.120414T2120Z-120414T2145Z/

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

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTH CENTRAL LINCOLN COUNTY IN SOUTHWEST NEBRASKA...
  SOUTHWESTERN LOGAN COUNTY IN WEST CENTRAL NEBRASKA...
  SOUTHEASTERN MCPHERSON COUNTY IN WEST CENTRAL NEBRASKA...

* UNTIL 445 PM CDT

* AT 418 PM CDT...TRAINED WEATHER SPOTTERS REPORTED A SEVERE
  THUNDERSTORM PRODUCING QUARTER SIZE HAIL.  THIS STORM WAS LOCATED
  NEAR NORTH PLATTE...AND MOVING NORTH AT 40 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  RINGGOLD AROUND 445 PM CDT.

OTHER LOCATIONS IMPACTED BY THIS SEVERE THUNDERSTORM INCLUDE HIGHWAY
97 MILE MARKER 10 AND HIGHWAY 92 MILE MARKER 220.

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 4160 10088 4159 10058 4112 10063 4112 10087
TIME...MOT...LOC 2120Z 182DEG 33KT 4121 10074
WIND...HAIL <50MPH 1.00IN

$$

POWER
1 follow-up statement
376 
WWUS53 KLBF 142131
SVSLBF

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

NEC111-113-117-142145-
/O.CON.KLBF.SV.W.0026.000000T0000Z-120414T2145Z/
LINCOLN NE-LOGAN NE-MCPHERSON NE-
431 PM CDT SAT APR 14 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHEASTERN
MCPHERSON...SOUTHWESTERN LOGAN AND NORTH CENTRAL LINCOLN COUNTIES
UNTIL 445 PM CDT...

AT 427 PM CDT...TRAINED WEATHER SPOTTERS REPORTED A SEVERE
THUNDERSTORM PRODUCING QUARTER SIZE HAIL.  THIS STORM WAS LOCATED 10
MILES NORTH OF NORTH PLATTE...MOVING NORTH AT 40 MPH.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  RINGGOLD AROUND 445 PM CDT.

OTHER LOCATIONS IMPACTED BY THE SEVERE THUNDERSTORM INCLUDE HIGHWAY
92 MILE MARKER 220.

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 4160 10088 4159 10058 4112 10063 4112 10087
TIME...MOT...LOC 2131Z 182DEG 33KT 4131 10074
WIND...HAIL <50MPH 1.00IN

$$

POWER

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 14, 11:21 AM CDTSevere Thunderstorm WarningLBFWheeler54 min
Apr 14, 11:28 AM CDTSevere Thunderstorm WarningLBFGarfield47 min
Apr 14, 12:14 PM CDTSevere Thunderstorm WarningLBFHolt, Wheeler28 min
Apr 14, 3:14 PM CDTWind AdvisoryLBFArthur, Blaine, Boyd, Brown, Chase, Cherry and 20 more31 hr
Apr 14, 3:46 PM CDTSevere Thunderstorm WarningLBFFrontier, Lincoln44 min
Apr 14, 4:01 PM CDTSevere Thunderstorm WarningLBFLincoln, Logan, McPherson44 min
Apr 14, 4:13 PM CDTSevere Thunderstorm WarningLBFLogan, Thomas47 min
Apr 14, 4:22 PM CDTSevere Thunderstorm WarningLBFLincoln, Logan38 min
Apr 14, 4:28 PM CDTTornado WarningLBFLogan, McPherson32 min
Apr 14, 4:45 PM CDTSevere Thunderstorm WarningLBFLincoln, Logan, McPherson30 min
Apr 14, 5:00 PM CDTSevere Thunderstorm WarningLBFLogan45 min
Apr 14, 5:08 PM CDTSevere Thunderstorm WarningLBFLincoln22 min
Apr 14, 5:19 PM CDTFlash Flood WarningLBFLogan4 hr
Apr 14, 5:19 PM CDTTornado WarningLBFLincoln26 min
Apr 14, 5:41 PM CDTAreal Flood AdvisoryLBFLincoln6 hr
Apr 14, 5:44 PM CDTTornado WarningLBFLincoln16 min
Apr 14, 6:01 PM CDTTornado WarningLBFLincoln29 min
Apr 14, 6:09 PM CDTSevere Thunderstorm WarningLBFCuster51 min
Apr 14, 6:09 PM CDTSevere Thunderstorm WarningLBFLincoln51 min
Apr 14, 6:19 PM CDTTornado WarningLBFLincoln41 min
Apr 14, 6:33 PM CDTSevere Thunderstorm WarningLBFLincoln, Logan27 min
Apr 14, 6:34 PM CDTTornado WarningLBFBlaine, Custer, Loup26 min
Apr 14, 6:41 PM CDTTornado WarningLBFLincoln33 min
Apr 14, 6:54 PM CDTFlash Flood WarningLBFLincoln, Logan4 hr
Apr 14, 6:55 PM CDTSevere Thunderstorm WarningLBFLincoln, Logan65 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 2012Every 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.