Alert archive / Nebraska / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 52, NWS North Platte, NE

May 4, 2012Blaine County, Loup County, Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at May 4, 2012, 4:35 PM CDT for Blaine County, Loup County, Nebraska. It was in force for 40 min. 4 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: May 4, 2012, 4:35 PM CDT (21:35 UTC)
Expired: May 4, 2012, 5:15 PM CDT
In force: 40 min
Issued by: NWS North Platte, NE
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Blaine County, NE, Loup County, NE

The radar

The North Platte radar (KLNX), 81 km from the middle of the area, began a volume at 21:35 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
May 4, 4:50 PM CDT	HAIL 1.75	7 E Brewster, NE
May 4, 5:00 PM CDT	HAIL 2	12 E Brewster, NE
May 4, 5:00 PM CDT	HAIL 2.75	9 E Brewster, NE
May 4, 5:23 PM CDT	FUNNEL CLOUD	12 Nw Taylor, 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.

Issued	Product	Office	Lasted
May 4, 2:00 PM CDT	Severe Thunderstorm Watch	SPC	9 hr

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 12:00Z, 9.6 hours before the alert went out and 124 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: 1902 J/kg
Mixed-layer CIN: -97 J/kg
Mixed-layer LCL: 750 m above ground
0-6 km bulk shear: 24 kt
0-1 km storm-relative helicity: 88 m²/s²
0-3 km storm-relative helicity: 198 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 6.1

Open this sounding in Storm Lab

The text

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

043 
WUUS53 KLBF 042135
SVRLBF
NEC009-115-042215-
/O.NEW.KLBF.SV.W.0052.120504T2135Z-120504T2215Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
435 PM CDT FRI MAY 4 2012

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EAST CENTRAL BLAINE COUNTY IN NORTH CENTRAL NEBRASKA...
  NORTHERN LOUP COUNTY IN NORTH CENTRAL NEBRASKA...

* UNTIL 515 PM CDT

* AT 430 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR
  ALMERIA MEADOW STATE WILDLIFE MANAGEMENT AREA...OR 8 MILES
  SOUTHEAST OF BREWSTER...AND MOVING NORTHEAST AT 15 MPH.

* LOCATIONS IMPACTED INCLUDE...
  ALMERIA MEADOW STATE WILDLIFE MANAGEMENT AREA...HORSESHOE BEND LAKE
  AND HIGHWAY 183 MILE MARKER 140.

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.

TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT
AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
IN NORTH PLATTE.

&&

LAT...LON 4186 9975 4191 9980 4209 9949 4209 9947
      4191 9932
TIME...MOT...LOC 2135Z 244DEG 13KT 4190 9971
WIND...HAIL 60MPH 1.00IN

$$

JACOBS

3 follow-up statements

044 
WWUS53 KLBF 042149
SVSLBF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
449 PM CDT FRI MAY 4 2012

NEC009-115-042215-
/O.CON.KLBF.SV.W.0052.000000T0000Z-120504T2215Z/
BLAINE NE-LOUP NE-
449 PM CDT FRI MAY 4 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHERN LOUP
AND EAST CENTRAL BLAINE COUNTIES UNTIL 515 PM CDT...

AT 444 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING PING PONG BALL SIZE HAIL...
AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR
ALMERIA MEADOW STATE WILDLIFE MANAGEMENT AREA...OR 10 MILES EAST OF
BREWSTER...MOVING EAST AT 10 MPH.

LOCATIONS IMPACTED INCLUDE...
  HORSESHOE BEND LAKE AND HIGHWAY 183 MILE MARKER 140.

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.

TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT
AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
IN NORTH PLATTE.

THIS IS A SUPERCELL THUNDERSTORM. DUE TO THE ROTATING NATURE OF
SUPERCELLS...THEY ARE CAPABLE OF PRODUCING ALL TYPES OF SEVERE
WEATHER...INCLUDING EXTREMELY LARGE HAIL...DESTRUCTIVE STRAIGHT LINE
WINDS AND POSSIBLY TORNADOES. BE PREPARED TO ACT QUICKLY SHOULD A
TORNADO OCCUR OR A TORNADO WARNING BE ISSUED.

TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY LEAD
TO FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.

&&

LAT...LON 4191 9932 4186 9972 4191 9976 4209 9949
      4209 9947
TIME...MOT...LOC 2149Z 244DEG 13KT 4191 9965
WIND...HAIL 60MPH 1.50IN

$$

JACOBS

834 
WWUS53 KLBF 042158
SVSLBF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
458 PM CDT FRI MAY 4 2012

NEC009-115-042215-
/O.CON.KLBF.SV.W.0052.000000T0000Z-120504T2215Z/
BLAINE NE-LOUP NE-
458 PM CDT FRI MAY 4 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHERN LOUP
AND EAST CENTRAL BLAINE COUNTIES UNTIL 515 PM CDT...

AT 453 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING PING PONG BALL SIZE HAIL...
AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR
ALMERIA MEADOW STATE WILDLIFE MANAGEMENT AREA...OR 11 MILES EAST OF
BREWSTER...MOVING EAST AT 10 MPH.

IN ADDITION...AT 450 PM CDT GOLF BALL SIZE HAIL WAS REPORTED 7 MILES 
EAST OF BREWSTER WITH THIS STORM.

LOCATIONS IMPACTED INCLUDE...
  HORSESHOE BEND LAKE AND HIGHWAY 183 MILE MARKER 140.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT
AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
IN NORTH PLATTE.

THIS IS A SUPERCELL THUNDERSTORM. DUE TO THE ROTATING NATURE OF
SUPERCELLS...THEY ARE CAPABLE OF PRODUCING ALL TYPES OF SEVERE
WEATHER...INCLUDING EXTREMELY LARGE HAIL...DESTRUCTIVE STRAIGHT LINE
WINDS AND POSSIBLY TORNADOES. BE PREPARED TO ACT QUICKLY SHOULD A
TORNADO OCCUR OR A TORNADO WARNING BE ISSUED.

TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY LEAD
TO FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.

&&

LAT...LON 4191 9932 4186 9972 4191 9976 4209 9949
      4209 9947
TIME...MOT...LOC 2158Z 244DEG 13KT 4191 9963
WIND...HAIL 60MPH 1.50IN

$$

JACOBS

556 
WWUS53 KLBF 042203
SVSLBF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
503 PM CDT FRI MAY 4 2012

NEC009-042212-
/O.CAN.KLBF.SV.W.0052.000000T0000Z-120504T2215Z/
BLAINE NE-
503 PM CDT FRI MAY 4 2012

...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL BLAINE COUNTY IS
CANCELLED...

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

TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT
AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
IN NORTH PLATTE.

LAT...LON 4191 9932 4187 9969 4195 9969 4209 9949
      4209 9947
TIME...MOT...LOC 2202Z 244DEG 13KT 4192 9961

$$

NEC115-042215-
/O.CON.KLBF.SV.W.0052.000000T0000Z-120504T2215Z/
LOUP NE-
503 PM CDT FRI MAY 4 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHERN LOUP
COUNTY UNTIL 515 PM CDT...

AT 458 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING LARGE DESTRUCTIVE HAIL UP TO
BASEBALL SIZE...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM
WAS LOCATED NEAR ALMERIA MEADOW STATE WILDLIFE MANAGEMENT AREA...OR
12 MILES EAST OF BREWSTER...MOVING EAST AT 10 MPH.

IN ADDITION...AT 5 PM CDT BASEBALL SIZE HAIL WAS REPORTED 9 MILES 
EAST OF BREWSTER WITH THIS STORM.

LOCATIONS IMPACTED INCLUDE...
  HORSESHOE BEND LAKE AND HIGHWAY 183 MILE MARKER 140.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT
AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
IN NORTH PLATTE.

THIS IS A SUPERCELL THUNDERSTORM. DUE TO THE ROTATING NATURE OF
SUPERCELLS...THEY ARE CAPABLE OF PRODUCING ALL TYPES OF SEVERE
WEATHER...INCLUDING EXTREMELY LARGE HAIL...DESTRUCTIVE STRAIGHT LINE
WINDS AND POSSIBLY TORNADOES. BE PREPARED TO ACT QUICKLY SHOULD A
TORNADO OCCUR OR A TORNADO WARNING BE ISSUED.

TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY LEAD
TO FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.

&&

LAT...LON 4191 9932 4187 9969 4195 9969 4209 9949
      4209 9947
TIME...MOT...LOC 2202Z 244DEG 13KT 4192 9961
WIND...HAIL 60MPH 2.75IN

$$

JACOBS

The office that day

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

Issued	Product	Office	Counties	Lasted
May 4, 3:14 AM CDT	Dense Fog Advisory	LBF	Arthur, Chase, Custer, Deuel, Frontier, Hayes and 5 more	3 hr
May 4, 3:34 PM CDT	Severe Thunderstorm Warning	LBF	Boyd, Holt	41 min
May 4, 3:50 PM CDT	Severe Thunderstorm Warning	LBF	Cherry, Hooker	40 min
May 4, 4:14 PM CDT	Severe Thunderstorm Warning	LBF	Boyd, Holt	16 min
May 4, 4:44 PM CDT	Severe Thunderstorm Warning	LBF	Cherry, Hooker, Thomas	27 min
May 4, 5:10 PM CDT	Severe Thunderstorm Warning	LBF	Loup	50 min
May 4, 5:24 PM CDT	Tornado Warning	LBF	Loup	36 min
May 4, 5:41 PM CDT	Severe Thunderstorm Warning	LBF	Garfield, Loup	49 min
May 4, 5:50 PM CDT	Severe Thunderstorm Warning	LBF	Custer, Garfield, Loup	29 min
May 4, 6:10 PM CDT	Severe Thunderstorm Warning	LBF	Garfield, Wheeler	50 min
May 4, 6:32 PM CDT	Tornado Warning	LBF	Garfield, Wheeler	28 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.