Alert archive / Nebraska / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 6, NWS North Platte, NE

March 18, 2012Lincoln County, Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at Mar 18, 2012, 8:42 PM CDT for Lincoln County, Nebraska. It was in force for 48 min. 16 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
Mar 18, 2012, 8:42 PM CDT (01:42 UTC)
Expired
Mar 18, 2012, 9:30 PM CDT
In force
48 min
Issued by
NWS North Platte, NE
Area
Storm-based polygon
Hail
1.75 in
Wind
60.0 mph

County Lincoln County, NE

The radar

The North Platte radar (KLNX), 109 km from the middle of the area, began a volume at 01:43 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
Mar 18, 8:59 PM CDTHAIL 1.7517 Sw North Platte, NE
Mar 18, 9:10 PM CDTTORNADO4 Sw North Platte, NEWELL DEFINED TORNADO ON THE GROUND WITH MULTIPLE POWER FLASHES WEST OF TOWN.
Mar 18, 9:12 PM CDTTORNADO5 S North Platte, NELAW ENFORCEMENT REPORTS LARGE TORNADO ON THE GROUND NEAR LAKE MALONEY.
Mar 18, 9:15 PM CDTTORNADO4 W North Platte, NE*** 1 INJ *** HOUSE WAS SIGNIFICANTLY DAMAGED NEAR FRONT STREET.OCCUPANT WAS INITIALLY TRAPPED BUT HAS SINCE BEEN RESCUED.
Mar 18, 9:17 PM CDTTORNADONorth Platte, NEPUBLIC REPORTS TORNADO ON THE GROUND 1 MILE WEST OF SOUTH MILLER SCHOOL ROAD
Mar 18, 9:18 PM CDTTORNADO3 Wsw North Platte, NE2 HOUSES DAMAGED. VISUAL CROSSING BAILEY YARDS.
Mar 18, 9:20 PM CDTTORNADO3 Wsw North Platte, NETRAINED SPOTTERS REPORTED DEBRIS CLOUD AND STOVE PIPE TORNADO LOOKING NORTHWEST TOWARD BAILEY YARD.
Mar 18, 9:20 PM CDTTORNADO4 W North Platte, NEPRELIMARY STORM SURVEY INDICATED 1 MINOR INJURY...SEVERAL POWERPOLES SNAPPED AND AT LEAST 3 HOMES HEAVILY DAMAGED JUST WEST OF THE BAILEY YARDS NEAR 9097 WEST FRONT STREET.
Mar 18, 9:20 PM CDTTORNADONorth Platte, NESPOTTER REPORTED WELL DEFINED TORNADO NEAR BAILEY YARD IN NORTH PLATTE.
Mar 18, 9:22 PM CDTTORNADO1 N North Platte, NESPOTTER REPORTED THAT TORNADO HAS ROPED OUT BUT WELL DEFINED WALL CLOUD AND FUNNEL CLOUD STILL EXISTS JUST NORTH OF NORTH PLATTE.
Mar 18, 9:22 PM CDTTORNADONorth Platte, NELAW ENFORCEMENT REPORTED A TORNADO AT BUFFALO AND NORTH RIVER ROAD IN NORTH PLATTE.
Mar 18, 9:28 PM CDTFUNNEL CLOUD5 N North Platte, NESPOTTER REPORTS FUNNEL CLOUD APPROXIMATELY 5 MILES NORTH OF NORTH PLATTE MOVING NORTH
Mar 18, 9:30 PM CDTHAIL 0.5North Platte, NE
Mar 18, 9:30 PM CDTTORNADO10 N North Platte, NETORNADO ON THE GROUND WITH A CYCLIC LIFTING OF THE FUNNEL.
Mar 18, 9:34 PM CDTTSTM WND DMG15 Nne North Platte, NEA 40X22 SHED WAS DESTROYED.
Mar 18, 9:39 PM CDTTORNADO15 N North Platte, NESPOTTER REPORTS TORNADO BECOMING MORE WELL DEFINED. LOCATION IS APPROXIMATE.

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

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 1.7 hours before the alert went out and 28 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 00:00Z on 2012-03-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1047 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, N. Platte/Lee Bi, NE at 00:00Z on 2012-03-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 185 square meters per square second.1939587897Sfc1 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
1047 J/kg
Mixed-layer CIN
-43 J/kg
Mixed-layer LCL
1861 m above ground
0-6 km bulk shear
43 kt
0-1 km storm-relative helicity
185 m²/s²
0-3 km storm-relative helicity
252 m²/s²
Significant tornado parameter
0.1
Supercell composite
6.8

Open this sounding in Storm Lab

The text

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

381 
WUUS53 KLBF 190142
SVRLBF
NEC111-190230-
/O.NEW.KLBF.SV.W.0006.120319T0142Z-120319T0230Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
842 PM CDT SUN MAR 18 2012

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CENTRAL LINCOLN COUNTY IN SOUTHWEST NEBRASKA...

* UNTIL 930 PM CDT

* AT 838 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING GOLF BALL SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR
  DICKENS...OR 17 MILES NORTH OF HAYES CENTER...AND MOVING NORTH AT
  60 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  LAKE MALONEY STATE RECREATION AREA AROUND 900 PM CDT.
  NORTH PLATTE AROUND 905 PM CDT.

OTHER LOCATIONS IMPACTED BY THIS SEVERE THUNDERSTORM INCLUDE HIGHWAY
83 MILE MARKER 90 AND HIGHWAY 97 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 4076 10111 4139 10105 4139 10035 4072 10080
TIME...MOT...LOC 0142Z 198DEG 51KT 4081 10095
WIND...HAIL 60MPH 1.75IN

$$

TAYLOR
2 follow-up statements
969 
WWUS53 KLBF 190153
SVSLBF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
753 PM MDT SUN MAR 18 2012

NEC111-190230-
/O.CON.KLBF.SV.W.0006.000000T0000Z-120319T0230Z/
LINCOLN NE-
853 PM CDT SUN MAR 18 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR CENTRAL
LINCOLN COUNTY UNTIL 930 PM CDT...

AT 848 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING GOLF BALL SIZE HAIL...AND
DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR
DICKENS...OR 22 MILES SOUTH OF NORTH PLATTE...MOVING NORTH AT 50 MPH.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  LAKE MALONEY STATE RECREATION AREA AROUND 910 PM CDT.
  NORTH PLATTE AROUND 915 PM CDT.

OTHER LOCATIONS IMPACTED BY THE SEVERE THUNDERSTORM INCLUDE HIGHWAY
83 MILE MARKER 70...HIGHWAY 83 MILE MARKER 90 AND HIGHWAY 83 MILE
MARKER 100.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS STORM HAS EXHIBITED SOME WEAK ROTATION. TORNADOES CAN DEVELOP
QUICKLY FROM SEVERE THUNDERSTORMS. ALTHOUGH ONE IS 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 4076 10111 4139 10105 4139 10035 4072 10080
TIME...MOT...LOC 0153Z 201DEG 42KT 4089 10089
WIND...HAIL 60MPH 1.75IN

$$

TAYLOR
074 
WWUS53 KLBF 190200
SVSLBF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
900 PM CDT SUN MAR 18 2012

NEC111-190230-
/O.CON.KLBF.SV.W.0006.000000T0000Z-120319T0230Z/
LINCOLN NE-
900 PM CDT SUN MAR 18 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR CENTRAL
LINCOLN COUNTY UNTIL 930 PM CDT...

AT 857 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING GOLF BALL SIZE HAIL...AND
DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED 9 MILES
NORTHEAST OF DICKENS...OR 15 MILES SOUTHWEST OF NORTH PLATTE...MOVING
NORTH AT 45 MPH.

IN ADDITION...AT 859 PM CDT GOLF BALL SIZE HAIL WAS REPORTED 17 
MILES SOUTHWEST OF NORTH PLATTE WITH THIS STORM.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  LAKE MALONEY STATE RECREATION AREA AROUND 910 PM CDT.
  NORTH PLATTE AROUND 915 PM CDT.

OTHER LOCATIONS IMPACTED BY THE SEVERE THUNDERSTORM INCLUDE HIGHWAY
83 MILE MARKER 90.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS STORM HAS EXHIBITED SOME WEAK ROTATION. TORNADOES CAN DEVELOP
QUICKLY FROM SEVERE THUNDERSTORMS. ALTHOUGH ONE IS 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 4076 10111 4139 10105 4139 10035 4072 10080
TIME...MOT...LOC 0159Z 199DEG 38KT 4096 10089
WIND...HAIL 60MPH 1.75IN

$$

TAYLOR

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 18, 7:06 PM CDTSevere Thunderstorm WarningLBFKeith, Lincoln, Perkins39 min
Mar 18, 7:38 PM CDTSevere Thunderstorm WarningLBFArthur, Keith, Lincoln, McPherson52 min
Mar 18, 7:53 PM CDTSevere Thunderstorm WarningLBFHayes, Lincoln52 min
Mar 18, 8:05 PM CDTSevere Thunderstorm WarningLBFCherry, Hooker, McPherson40 min
Mar 18, 9:04 PM CDTTornado WarningLBFLincoln26 min
Mar 18, 9:28 PM CDTTornado WarningLBFLincoln, Logan, McPherson32 min
Mar 18, 9:32 PM CDTSevere Thunderstorm WarningLBFCherry21 min
Mar 18, 9:43 PM CDTTornado WarningLBFCherry32 min
Mar 18, 10:05 PM CDTSevere Thunderstorm WarningLBFCherry, Logan, Thomas40 min
Mar 18, 10:14 PM CDTTornado WarningLBFCherry16 min
Mar 19, 4:19 AM CDTRed Flag WarningLBFArthur, Cherry, Deuel, Garden, Grant, Keith and 1 more15 hr

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.