Alert archive / Nebraska / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 7, NWS North Platte, NE

April 18, 2000Arthur County, Grant County, Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at Apr 18, 2000, 10:44 PM MDT for Arthur County, Grant County, Nebraska. It was in force for 61 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
Apr 18, 2000, 10:44 PM MDT (04:44 UTC)
Expired
Apr 18, 2000, 11:45 PM MDT
In force
61 min
Issued by
NWS North Platte, NE
Area
Whole counties

Counties Arthur County, NE, Grant County, NE

The radar

The North Platte radar (KLNX), 98 km from the middle of the area, began a volume at 04:45 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 18, 10:50 PM MDTThunderstorm Wind 52 EHyannis, NE
Apr 18, 11:00 PM MDTThunderstorm Wind 52 EArthur, 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
Apr 18, 10:30 PM MDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 4.7 hours before the alert went out and 115 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 2000-04-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 190 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 2000-04-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 88 square meters per square second.1939587897117Sfc1 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
190 J/kg
Mixed-layer CIN
-459 J/kg
Mixed-layer LCL
1554 m above ground
0-6 km bulk shear
80 kt
0-1 km storm-relative helicity
88 m²/s²
0-3 km storm-relative helicity
274 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.

000 
WUUS53 KLBF 190446
SVRLBF
NEC005-075-190545-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
1044 PM MDT TUE APR 18 2000

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EASTERN GRANT COUNTY IN WEST CENTRAL NEBRASKA
  EASTERN ARTHUR COUNTY IN WEST CENTRAL NEBRASKA

* UNTIL 1145 PM MDT(1245 AM CDT)

* AT 1042 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM ALONG A LINE EXTENDING FROM 2 MILES WEST OF
  ASHBY TO 14 MILES SOUTH OF HYANNIS TO 4 MILES SOUTH OF ARTHUR...OR
  ALONG A LINE EXTENDING FROM 34 MILES NORTHWEST OF ARTHUR TO 16
  MILES NORTH OF ARTHUR TO 4 MILES SOUTH OF ARTHUR...MOVING EAST AT
  20 MPH.

* THE SEVERE THUNDERSTORMS WILL BE...
  NEAR HYANNIS AROUND 1110 PM MDT
  7 MILES SOUTH OF WHITMAN AROUND 1140 PM MDT

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 WHICH MAY CAUSE 
SERIOUS INJURY AND SEVERE DAMAGE TO PROPERTY. MOVE TO A STURDY 
BUILDING AND STAY AWAY FROM WINDOWS.  DAMAGING WINDS ARE ALSO LIKELY.

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

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 400 AM MDT
WEDNESDAY MORNING(500 AM CDT WEDNESD	AY MORNING) FOR WESTERN NEBRASKA.

FWM

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 18, 9:14 PM MDTSevere Thunderstorm WarningLBFGarden61 min
Apr 18, 9:59 PM MDTSevere Thunderstorm WarningLBFArthur, Garden, Grant61 min
Apr 18, 10:53 PM MDTSevere Thunderstorm WarningLBFHooker, McPherson67 min
Apr 18, 11:05 PM MDTSevere Thunderstorm WarningLBFKeith, Lincoln55 min
Apr 18, 11:39 PM MDTSevere Thunderstorm WarningLBFLogan, Thomas66 min
Apr 18, 11:39 PM MDTSevere Thunderstorm WarningLBFCherry66 min
Apr 18, 11:55 PM MDTSevere Thunderstorm WarningLBFHooker, Lincoln, McPherson35 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.