Alert archive / Nebraska / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 32, NWS North Platte, NE

May 7, 2000Brown County, Keya Paha County, Rock County, Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at May 7, 2000, 8:37 PM CDT for Brown County, Keya Paha County, Rock County, Nebraska. It was in force for 23 min. 2 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
May 7, 2000, 8:37 PM CDT (01:37 UTC)
Expired
May 7, 2000, 9:00 PM CDT
In force
23 min
Issued by
NWS North Platte, NE
Area
Whole counties

Counties Brown County, NE, Keya Paha County, NE, Rock County, NE

The radar

The North Platte radar (KLNX), 100 km from the middle of the area, began a volume at 01:39 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
May 7, 8:50 PM CDTThunderstorm WindSpringview, NEWind damage to shop building
May 7, 9:00 PM CDTHail 0.75Johnstown, 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 7, 3:30 PM CDTTornado WatchSPC6 hr
May 7, 8:00 PM CDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 1.6 hours before the alert went out and 177 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 2000-05-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1647 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°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 2000-05-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 59 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
1647 J/kg
Mixed-layer CIN
-58 J/kg
Mixed-layer LCL
976 m above ground
0-6 km bulk shear
42 kt
0-1 km storm-relative helicity
59 m²/s²
0-3 km storm-relative helicity
84 m²/s²
Significant tornado parameter
0.4
Supercell composite
3.7

Open this sounding in Storm Lab

The text

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

000 
WUUS53 KLBF 080138
SVRLBF
NEC017-103-149-080200-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
837 PM CDT SUN MAY 7 2000

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  KEYA PAHA COUNTY IN NORTH CENTRAL NEBRASKA
  BROWN COUNTY IN NORTH CENTRAL NEBRASKA
  ROCK COUNTY IN NORTH CENTRAL NEBRASKA

* UNTIL 900 PM CDT

* AT 833 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM ALONG A LINE EXTENDING FROM 12 MILES NORTHWEST
  OF SPRINGVIEW TO 6 MILES SOUTH OF AINSWORTH TO 9 MILES WEST OF     
  PURDUM...MOVING EAST AT 45 MPH.

* THE SEVERE THUNDERSTORMS WILL BE...
  NEAR LONG PINE AROUND 845 PM CDT
  NEAR BURTON AROUND 850 PM CDT
  NEAR BASSETT AROUND 855 PM CDT
  NEAR MILLS AROUND 905 PM 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.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 900 PM CDT SUNDAY EVENING FOR
WESTERN NEBRASKA.

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

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 200 AM CDT MONDAY
MORNING FOR WESTERN NEBRASKA. A SEVERE THUNDERSTORM WATCH ALSO
REMAINS IN EFFECT UNTIL 300 AM CDT MONDAY MORNING FOR WESTERN
NEBRASKA.

The office that day

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

IssuedProductOfficeCountiesLasted
May 7, 7:29 PM CDTSevere Thunderstorm WarningLBFCherry61 min
May 7, 7:38 PM CDTSevere Thunderstorm WarningLBFKeith52 min
May 7, 7:46 PM CDTSevere Thunderstorm WarningLBFPerkins59 min
May 7, 7:56 PM CDTSevere Thunderstorm WarningLBFCherry64 min
May 7, 8:15 PM CDTSevere Thunderstorm WarningLBFLincoln60 min
May 7, 8:28 PM CDTSevere Thunderstorm WarningLBFHooker, Thomas62 min
May 7, 8:33 PM CDTSevere Thunderstorm WarningLBFKeith27 min
May 7, 8:40 PM CDTSevere Thunderstorm WarningLBFChase65 min
May 7, 8:44 PM CDTSevere Thunderstorm WarningLBFHayes, Perkins61 min
May 7, 8:49 PM CDTSevere Thunderstorm WarningLBFBlaine, Loup56 min
May 7, 9:06 PM CDTSevere Thunderstorm WarningLBFKeith, Lincoln54 min
May 7, 9:59 PM CDTSevere Thunderstorm WarningLBFCuster, Lincoln61 min
May 7, 10:43 PM CDTSevere Thunderstorm WarningLBFFrontier62 min
May 7, 11:00 PM CDTSevere Thunderstorm WarningLBFCuster45 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 2000Every severe thunderstorm warning in 2000

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; radar from the NEXRAD Level II archive.