Alert archive / Nebraska / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 293, NWS North Platte, NE

September 6, 2001Cherry County, Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at Sep 6, 2001, 8:02 PM MDT for Cherry County, Nebraska. It was in force for 58 min. 2 reports came from 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, with what was reported inside it.

The facts

Issued
Sep 6, 2001, 8:02 PM MDT (02:02 UTC)
Expired
Sep 6, 2001, 9:00 PM MDT
In force
58 min
Issued by
NWS North Platte, NE
Area
Whole counties; the outline is the Mesonet’s reconstruction

County Cherry County, NE

The radar

The North Platte radar (KLNX), 56 km from the middle of the area, began a volume at 02:05 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
Sep 6, 8:35 PM MDTThunderstorm Wind 52 EBrownlee, NE
Sep 6, 8:35 PM MDTHail 0.75Brownlee, 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
Sep 6, 5:30 PM MDTSevere Thunderstorm WatchSPC5 hr

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 2.0 hours before the alert went out and 132 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 2001-09-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1716 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 2001-09-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -14 square meters per square second.193958Sfc1 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
1716 J/kg
Mixed-layer CIN
-43 J/kg
Mixed-layer LCL
2094 m above ground
0-6 km bulk shear
19 kt
0-1 km storm-relative helicity
-14 m²/s²
0-3 km storm-relative helicity
27 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.

665 
WUUS53 KLBF 070203
SVRLBF
NEC031-070300-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
802 PM MDT THU SEP 6 2001

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A

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

* UNTIL 900 PM MDT(1000 PM CDT)...

* AT 800 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 29 MILES SOUTHWEST OF BROWNLEE...OR ABOUT 8   
  MILES NORTHWEST OF MULLEN...MOVING EAST AT 20 MPH.  OTHER STORMS 
  WERE DEVELOPING RAPIDLY ACROSS THE WARNED AREA AND COULD ALSO 
  BECOME SEVERE.

* THE SEVERE THUNDERSTORM WILL BE...

  9 MILES SOUTHWEST OF BROWNLEE AROUND 1000 PM CDT...

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

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

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM MDT
THURSDAY EVENING(1100 PM CDT THURSDAY EVENING) FOR WESTERN NEBRASKA.

LAT...LON 4211 10150 4247 10143 4244 10066 4213 10058

$$
DP/CDC

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 6, 7:10 PM MDTSevere Thunderstorm WarningLBFGrant, Hooker65 min
Sep 6, 8:08 PM MDTSevere Thunderstorm WarningLBFChase, Perkins67 min
Sep 6, 8:14 PM MDTSevere Thunderstorm WarningLBFHooker46 min
Sep 6, 8:40 PM MDTSevere Thunderstorm WarningLBFThomas65 min
Sep 6, 8:51 PM MDTSevere Thunderstorm WarningLBFCherry54 min
Sep 6, 9:00 PM MDTSevere Thunderstorm WarningLBFBrown, Keya Paha60 min
Sep 6, 9:16 PM MDTSevere Thunderstorm WarningLBFBlaine59 min
Sep 6, 9:36 PM MDTSevere Thunderstorm WarningLBFLogan24 min
Sep 6, 9:50 PM MDTSevere Thunderstorm WarningLBFLincoln55 min
Sep 6, 10:02 PM MDTSevere Thunderstorm WarningLBFCuster58 min
Sep 6, 10:03 PM MDTSevere Thunderstorm WarningLBFBoyd57 min
Sep 6, 10:12 PM MDTSevere Thunderstorm WarningLBFLoup, Rock48 min
Sep 6, 10:23 PM MDTSevere Thunderstorm WarningLBFFrontier67 min
Sep 6, 10:53 PM MDTSevere Thunderstorm WarningLBFHolt67 min
Sep 6, 11:00 PM MDTSevere Thunderstorm WarningLBFCuster60 min
Sep 6, 11:39 PM MDTSevere Thunderstorm WarningLBFBoyd66 min
Sep 6, 11:48 PM MDTSevere Thunderstorm WarningLBFWheeler42 min
Sep 6, 11:57 PM MDTSevere Thunderstorm WarningLBFHolt33 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 2001Every 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.