Alert archive / Nebraska / Severe Thunderstorm Warnings in 2003

Severe Thunderstorm Warning 113, NWS North Platte, NE

June 23, 2003Custer County, Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at Jun 23, 2003, 6:04 AM CDT for Custer County, Nebraska. It was in force for 86 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jun 23, 2003, 6:04 AM CDT (11:04 UTC)
Expired: Jun 23, 2003, 7:30 AM CDT
In force: 86 min
Issued by: NWS North Platte, NE
Area: Counties, with a storm outline in the text

County Custer County, NE

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 11.1 hours before the alert went out and 70 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: 3917 J/kg
Mixed-layer CIN: -19 J/kg
Mixed-layer LCL: 1508 m above ground
0-6 km bulk shear: 43 kt
0-1 km storm-relative helicity: -14 m²/s²
0-3 km storm-relative helicity: 38 m²/s²
Significant tornado parameter: -0.3
Supercell composite: -2.7

Open this sounding in Storm Lab

The text

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

894 
WUUS53 KLBF 231104
SVRLBF
NEC041-231230-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
603 AM CDT MON JUN 23 2003

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A

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

* UNTIL 730 AM CDT

* AT 556 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  THE MOST DANGEROUS PART OF A SEVERE THUNDERSTORM ALONG A LINE
  EXTENDING FROM 9 MILES WEST OF CALLAWAY TO BROKEN BOW TO BERWYN 
  TO 8 MILES EAST OF WESTERVILLE...MOVING NORTHEAST AT 20 MPH.

* SEVERE THUNDERSTORMS WILL BE NEAR...
  OVER WEISSERT AROUND 615 AM CDT
  OVER MERNA AROUND 630 AM CDT
  OVER COMSTOCK AROUND 645 AM CDT
  OVER SARGENT AROUND 655 AM CDT
  4 MILES SOUTHEAST OF ANSELMO AROUND 705 AM CDT
  OVER GATES AROUND 720 AM CDT

IF YOU ARE IN THE PATH OF THIS STORM...SEEK SHELTER IN A SMALL
INTERIOR ROOM AWAY FROM WINDOWS. A BASEMENT OFFERS THE BEST
PROTECTION.

THIS THUNDERSTORM IS CAPABLE OF PRODUCING LARGE HAIL AND DAMAGING
WINDS.

THIS THUNDERSTORM IS PRODUCING VERY HEAVY RAINFALL. TRAVEL ON 
UNPAVED ROADS IS NOT ADVISED.  ROADS COULD BECOME WASHED OUT.  IF 
YOU ARE IN A LOW LYING AREA BE ALERT FOR RAPIDLY RISING WATER. DO 
NOT DRIVE ON WATER COVERED ROADS.

REPORT SEVERE WEATHER TO THE NEAREST LAW ENFORCEMENT AGENCY FOR RELAY
TO THE NATIONAL WEATHER SERVICE.

LAT...LON 4108 10016 4107 9924 4172 9924 4160 10020

$$
CDC

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 22, 8:30 PM CDT	Severe Thunderstorm Warning	LBF	Wheeler	60 min
Jun 23, 1:20 AM CDT	Severe Thunderstorm Warning	LBF	Brown, Cherry	55 min
Jun 23, 4:34 AM CDT	Severe Thunderstorm Warning	LBF	Custer	86 min
Jun 23, 7:12 AM CDT	Severe Thunderstorm Warning	LBF	Blaine, Brown, Loup, Rock	63 min
Jun 23, 8:01 AM CDT	Severe Thunderstorm Warning	LBF	Garfield, Loup	29 min
Jun 23, 9:53 AM CDT	Severe Thunderstorm Warning	LBF	Holt	52 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 2003 Every severe thunderstorm warning in 2003

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive.