Alert archive / Nebraska / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 21, NWS North Platte, NE

May 7, 2014Custer County, Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at May 7, 2014, 7:47 PM CDT for Custer County, Nebraska. It was in force for 43 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: May 7, 2014, 7:47 PM CDT (00:47 UTC)
Expired: May 7, 2014, 8:30 PM CDT
In force: 43 min
Issued by: NWS North Platte, NE
Area: Storm-based polygon
Hail: 1.25 in
Wind: 60.0 mph

County Custer County, NE

The radar

The North Platte radar (KLNX), 103 km from the middle of the area, began a volume at 00:50 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	Remark
May 7, 8:05 PM CDT	TSTM WND DMG	8 Sw Callaway, NE	SMALL BRANCES DOWN FROM STRONG WINDS.
May 7, 8:15 PM CDT	TSTM WND GST 60	6 S Callaway, 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 7, 7:26 PM CDT	Severe Thunderstorm Watch	SPC	4 hr

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 0.8 hours before the alert went out and 47 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: 848 J/kg
Mixed-layer CIN: -63 J/kg
Mixed-layer LCL: 1435 m above ground
0-6 km bulk shear: 64 kt
0-1 km storm-relative helicity: 40 m²/s²
0-3 km storm-relative helicity: 154 m²/s²
Significant tornado parameter: 0.3
Supercell composite: 3.7

Open this sounding in Storm Lab

The text

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

019 
WUUS53 KLBF 080047
SVRLBF
NEC041-080130-
/O.NEW.KLBF.SV.W.0021.140508T0047Z-140508T0130Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
747 PM CDT WED MAY 7 2014

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHWESTERN CUSTER COUNTY IN CENTRAL NEBRASKA...

* UNTIL 830 PM CDT

* AT 745 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR BRADY...AND
  MOVING NORTHEAST AT 40 MPH.

  HAZARD...60 MPH WIND GUSTS AND HALF DOLLAR SIZE HAIL.

  SOURCE...RADAR INDICATED.

  IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT WIND DAMAGE TO
           ROOFS...SIDING AND TREES.

* LOCATIONS IMPACTED INCLUDE...
  CALLAWAY...ETNA AND LODI.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS STORM IS PRODUCING LARGE HAIL. SEEK SHELTER NOW INSIDE A STURDY
STRUCTURE AND STAY AWAY FROM WINDOWS.

LARGE HAIL...DAMAGING WINDS AND CONTINUOUS CLOUD TO GROUND LIGHTNING
IS OCCURRING WITH THIS STORM. MOVE INDOORS IMMEDIATELY. LIGHTNING
KILLS. REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO
BE STRUCK BY LIGHTNING.

&&

LAT...LON 4105 10024 4131 10023 4136 9973 4105 9978
      4104 9990 4104 10001 4104 10022
TIME...MOT...LOC 0047Z 244DEG 35KT 4105 10027

HAIL...1.25IN
WIND...60MPH

$$

STOPPKOTTE

2 follow-up statements

742 
WWUS53 KLBF 080106
SVSLBF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
806 PM CDT WED MAY 7 2014

NEC041-080130-
/O.CON.KLBF.SV.W.0021.000000T0000Z-140508T0130Z/
CUSTER NE-
806 PM CDT WED MAY 7 2014

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHWESTERN
CUSTER COUNTY UNTIL 830 PM CDT...

AT 759 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED 14 MILES NORTH OF
GOTHENBURG...AND MOVING NORTHEAST AT 40 MPH.

HAZARD...60 MPH WIND GUSTS AND QUARTER SIZE HAIL.

SOURCE...RADAR INDICATED.

IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT WIND DAMAGE TO
         ROOFS...SIDING AND TREES.

LOCATIONS IMPACTED INCLUDE...
CALLAWAY AND LODI.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS STORM IS PRODUCING LARGE HAIL. SEEK SHELTER NOW INSIDE A STURDY
STRUCTURE AND STAY AWAY FROM WINDOWS.

LARGE HAIL...DAMAGING WINDS AND CONTINUOUS CLOUD TO GROUND LIGHTNING
IS OCCURRING WITH THIS STORM. MOVE INDOORS IMMEDIATELY. LIGHTNING
KILLS. REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO
BE STRUCK BY LIGHTNING.

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

&&

LAT...LON 4105 10024 4131 10023 4136 9973 4105 9978
      4104 9990 4104 10001 4104 10022
TIME...MOT...LOC 0106Z 232DEG 35KT 4117 10006

HAIL...1.00IN
WIND...60MPH

$$

STOPPKOTTE

261 
WWUS53 KLBF 080141
SVSLBF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
841 PM CDT WED MAY 7 2014

NEC041-080150-
/O.EXP.KLBF.SV.W.0021.000000T0000Z-140508T0130Z/
CUSTER NE-
841 PM CDT WED MAY 7 2014

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN CUSTER COUNTY HAS
EXPIRED...

THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED
AREA.  HOWEVER...GUSTY WINDS ARE STILL POSSIBLE WITH THIS 
THUNDERSTORM. ALSO...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT 
FOR SOUTHEAST CUSTER COUNTY UNTIL 915 PM CDT.

IN ADDITION...STRONG THUNDERSTORMS MAY REDEVELOP...AND A SEVERE 
THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1 AM CDT.

LAT...LON 4105 10024 4131 10023 4136 9973 4105 9978
      4104 9990 4104 10001 4104 10022
TIME...MOT...LOC 0106Z 232DEG 35KT 4117 10006

$$

STOPPKOTTE

The office that day

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

Issued	Product	Office	Counties	Lasted
May 7, 7:02 PM CDT	Severe Thunderstorm Warning	LBF	Arthur, Garden, Keith	43 min
May 7, 7:15 PM CDT	Severe Thunderstorm Warning	LBF	Frontier	45 min
May 7, 7:26 PM CDT	Severe Thunderstorm Warning	LBF	Lincoln	49 min
May 7, 8:24 PM CDT	Severe Thunderstorm Warning	LBF	Custer	51 min
May 8, 9:56 AM CDT	Winter Storm Warning	LBF	Sheridan	6 hr
May 8, 9:56 AM CDT	Winter Weather Advisory	LBF	Cherry	6 hr

Nearby

Severe Thunderstorm Warnings in Nebraska, 2014 Every severe thunderstorm warning in 2014

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.