Alert archive / Nebraska / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 151, NWS North Platte, NE

July 7, 2001Garden County, Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at Jul 7, 2001, 8:04 PM MDT for Garden County, Nebraska. It was in force for 56 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties.

The facts

Issued: Jul 7, 2001, 8:04 PM MDT (02:04 UTC)
Expired: Jul 7, 2001, 9:00 PM MDT
In force: 56 min
Issued by: NWS North Platte, NE
Area: Whole counties; the outline is the Mesonet’s reconstruction

County Garden County, NE

The radar

The North Platte radar (KLNX), 158 km from the middle of the area, began a volume at 01:49 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.

The watch it was issued in

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

Issued	Product	Office	Lasted
Jul 7, 4:45 PM MDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 2.1 hours before the alert went out and 181 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: 1706 J/kg
Mixed-layer CIN: -75 J/kg
Mixed-layer LCL: 2540 m above ground
0-6 km bulk shear: 21 kt
0-1 km storm-relative helicity: 7 m²/s²
0-3 km storm-relative helicity: 85 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.6

Open this sounding in Storm Lab

The text

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

000 
WUUS53 KLBF 080205
SVRLBF

NEC069-080300-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
804 PM MDT SAT JUL 7 2001

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHERN GARDEN COUNTY IN THE PANHANDLE OF NEBRASKA

* UNTIL 900 PM MDT

* AT 757 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM OVER EXTREME NORTHWESTERN GARDEN COUNTY...OR
  ABOUT 16 MILES SOUTHEAST OF ALLIANCE...MOVING EAST AT 15 MPH.

* THE SEVERE THUNDERSTORM WILL BE...

  OVER FARM AND RANGELANDS OF EXTREME NORTHERN GARDEN COUNTY

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.

REPORT SEVERE WEATHER TO THE NEAREST LAW ENFORCEMENT AGENCY FOR RELAY
TO THE NA^TIONAL WEATHER SERVICE.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM MDT
SATURDAY EVENING FOR THE PANHANDLE OF NEBRASKA.

LAT...LON 4200 10276 4185 10276 4185 10209 4199 10208

$$

M. MUTCHLER

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 7, 8:41 PM MDT	Severe Thunderstorm Warning	LBF	Sheridan	49 min
Jul 7, 9:02 PM MDT	Severe Thunderstorm Warning	LBF	Garden	58 min
Jul 7, 9:22 PM MDT	Severe Thunderstorm Warning	LBF	Cherry	53 min
Jul 8, 12:27 AM MDT	Severe Thunderstorm Warning	LBF	McPherson	48 min
Jul 8, 1:03 AM MDT	Severe Thunderstorm Warning	LBF	Lincoln, Logan	42 min
Jul 8, 1:23 AM MDT	Severe Thunderstorm Warning	LBF	Custer	67 min
Jul 8, 2:28 AM MDT	Severe Thunderstorm Warning	LBF	Custer	17 min
Jul 8, 2:54 AM MDT	Severe Thunderstorm Warning	LBF	Garfield, Wheeler	36 min
Jul 8, 3:31 AM MDT	Severe Thunderstorm Warning	LBF	Wheeler	14 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 2001 Every severe thunderstorm warning in 2001

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; radar from the NEXRAD Level II archive.