Alert archive / Nebraska / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 4, NWS North Platte, NE

May 5, 2002Holt County, Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at May 5, 2002, 6:00 PM CDT for Holt County, Nebraska. It was in force for 45 min. 1 report 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 5, 2002, 6:00 PM CDT (23:00 UTC)
Expired
May 5, 2002, 6:45 PM CDT
In force
45 min
Issued by
NWS North Platte, NE
Area
Counties, with a storm outline in the text

County Holt County, NE

What was reported inside it

TimeReportWhereRemark
May 5, 6:15 PM CDTHail 1Amelia, NE

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
May 5, 4:30 PM CDTTornado WatchSPC7 hr

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 12:00Z, 11.0 hours before the alert went out and 201 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 12:00Z on 2002-05-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 172 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 12:00Z on 2002-05-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 169 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
172 J/kg
Mixed-layer CIN
-207 J/kg
Mixed-layer LCL
655 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
169 m²/s²
0-3 km storm-relative helicity
156 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.1

Open this sounding in Storm Lab

The text

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

000 
WUUS53 KLBF 052300
SVRLBF
NEC089-052345-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
559 PM CDT SUN MAY 5 2002

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  HOLT COUNTY IN NORTH CENTRAL NEBRASKA...

* UNTIL 645 PM CDT...

* AT 558 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  THE MOST DANGEROUS PART OF A SEVERE THUNDERSTORM 3 MILES NORTHWEST
  OF AMELIA...OR ABOUT 23 MILES SOUTHWEST OF ONEILL...MOVING EAST AT
  30 MPH.

* THE SEVERE THUNDERSTORM WILL BE...

  8 MILES NORTH OF CHAMBERS AROUND 620 PM CDT...
  11 MILES SOUTH OF EMMET AROUND 625 PM CDT...
  7 MILES SOUTH OF ONEILL AROUND 640 PM CDT...
  2 MILES WEST OF INMAN AROUND 645 PM CDT...

THIS STORM HAS HAD A HISTORY OF PRODUCING LARGE HAIL.

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.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1100 PM CDT SUNDAY EVENING
FOR NORTH CENTRAL NEBRASKA.

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

LAT...LON 4250 9921 4212 9919 4225 9837 4263 9840

The office that day

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

IssuedProductOfficeCountiesLasted
May 5, 5:02 PM CDTSevere Thunderstorm WarningLBFLincoln43 min
May 5, 5:12 PM CDTSevere Thunderstorm WarningLBFHolt48 min
May 5, 5:44 PM CDTSevere Thunderstorm WarningLBFLincoln46 min
May 5, 6:29 PM CDTSevere Thunderstorm WarningLBFLincoln46 min
May 5, 6:32 PM CDTSevere Thunderstorm WarningLBFBlaine43 min
May 5, 6:37 PM CDTTornado WarningLBFBlaine23 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 2002Every severe thunderstorm warning in 2002

Sources

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