Alert archive / Nebraska / Severe Thunderstorm Warnings in 2015

Severe Thunderstorm Warning 13, NWS North Platte, NE

April 24, 2015Blaine County, Loup County, Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at Apr 24, 2015, 7:15 PM CDT for Blaine County, Loup County, Nebraska. It was in force for 45 min. 2 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 24, 2015, 7:15 PM CDT (00:15 UTC)
Expired
Apr 24, 2015, 8:00 PM CDT
In force
45 min
Issued by
NWS North Platte, NE
Area
Storm-based polygon
Hail
1.0 in
Wind
50.0 mph

Counties Blaine County, NE, Loup County, NE

The radar

The North Platte radar (KLNX), 84 km from the middle of the area, began a volume at 00:18 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 24, 7:25 PM CDTHAIL 0.753 Sse Brewster, NE
Apr 24, 7:30 PM CDTHAIL 14 S Brewster, NEHAIL HAS COMPLETELY COVERED THE GROUND

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, 0.3 hours before the alert went out and 122 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 2015-04-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 683 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 2015-04-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 20 square meters per square second.19395878Sfc1 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
683 J/kg
Mixed-layer CIN
-38 J/kg
Mixed-layer LCL
1923 m above ground
0-6 km bulk shear
10 kt
0-1 km storm-relative helicity
20 m²/s²
0-3 km storm-relative helicity
50 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.

556 
WUUS53 KLBF 250015
SVRLBF
NEC009-115-250100-
/O.NEW.KLBF.SV.W.0013.150425T0015Z-150425T0100Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
715 PM CDT FRI APR 24 2015

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A

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

* UNTIL 800 PM CDT

* AT 713 PM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
  EXTENDING FROM 11 MILES NORTH OF ALMERIA TO 8 MILES WEST OF ALMERIA
  TO BREWSTER...AND MOVING SOUTHEAST AT 10 MPH.

  HAZARD...QUARTER SIZE HAIL.

  SOURCE...RADAR INDICATED.

  IMPACT...DAMAGE TO VEHICLES IS EXPECTED.

* LOCATIONS IMPACTED INCLUDE...
  ALMERIA...CALAMUS RESERVOIR STATE RECREATION AREA...HORSESHOE BEND
  LAKE...HANNAMON BAYOU CAMPGROUND...VALLEY VIEW FLAT CAMPGROUND AND
  NUNDA SHOAL CAMPGROUND.

THIS INCLUDES HIGHWAY 183 BETWEEN MILE MARKERS 126 AND 146.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

TORRENTIAL RAINFALL IS OCCURRING WITH THESE STORMS...AND MAY LEAD TO
FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS!

&&

LAT...LON 4174 9949 4177 9986 4200 10008 4193 9979
      4209 9948 4209 9943 4195 9922 4187 9922
TIME...MOT...LOC 0015Z 310DEG 7KT 4198 9946 4184 9968
          4191 9987

HAIL...1.00IN
WIND...<50MPH

$$

BUTTLER
2 follow-up statements
406 
WWUS53 KLBF 250035
SVSLBF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
735 PM CDT FRI APR 24 2015

NEC009-115-250100-
/O.CON.KLBF.SV.W.0013.000000T0000Z-150425T0100Z/
BLAINE NE-LOUP NE-
735 PM CDT FRI APR 24 2015

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR LOUP AND EAST
CENTRAL BLAINE COUNTIES UNTIL 800 PM CDT...

AT 734 PM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM 12 MILES NORTHEAST OF ALMERIA TO 6 MILES WEST OF
ALMERIA TO 5 MILES SOUTHWEST OF BREWSTER...AND MOVING SOUTHEAST AT 10
MPH.

HAZARD...QUARTER SIZE HAIL.

SOURCE...RADAR INDICATED.

IMPACT...DAMAGE TO VEHICLES IS EXPECTED.

LOCATIONS IMPACTED INCLUDE...
ALMERIA...CALAMUS RESERVOIR STATE RECREATION AREA...HORSESHOE BEND
LAKE...HANNAMON BAYOU CAMPGROUND...VALLEY VIEW FLAT CAMPGROUND AND
NUNDA SHOAL CAMPGROUND.

THIS INCLUDES HIGHWAY 183 BETWEEN MILE MARKERS 126 AND 146.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

TORRENTIAL RAINFALL IS OCCURRING WITH THESE STORMS...AND MAY LEAD TO
FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS!

&&

LAT...LON 4174 9949 4177 9986 4200 10008 4193 9979
      4209 9948 4209 9943 4195 9922 4187 9922
TIME...MOT...LOC 0035Z 310DEG 7KT 4199 9944 4184 9965
          4187 9990

HAIL...1.00IN
WIND...<50MPH

$$

BUTTLER
448 
WWUS53 KLBF 250057
SVSLBF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
757 PM CDT FRI APR 24 2015

NEC009-115-250107-
/O.EXP.KLBF.SV.W.0013.000000T0000Z-150425T0100Z/
BLAINE NE-LOUP NE-
757 PM CDT FRI APR 24 2015

...THE SEVERE THUNDERSTORM WARNING FOR LOUP AND EAST CENTRAL BLAINE
COUNTIES WILL EXPIRE AT 800 PM CDT...

THE LINE OF STORMS WHICH PROMPTED THE WARNING HAS WEAKENED BELOW
SEVERE LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR 
PROPERTY.  HOWEVER...SMALL HAIL UP TO NICKLE SIZE AND HEAVY RAIN ARE 
STILL POSSIBLE WITH THESE THUNDERSTORMS.

LAT...LON 4174 9949 4177 9986 4200 10008 4193 9979
      4209 9948 4209 9943 4195 9922 4187 9922
TIME...MOT...LOC 0057Z 310DEG 7KT 4196 9940 4181 9961
          4184 9986

$$

BUTTLER

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 24, 7:59 PM CDTAreal Flood AdvisoryLBFBlaine, Loup6 hr

Nearby

Severe Thunderstorm Warnings in Nebraska, 2015Every severe thunderstorm warning in 2015

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.