Alert archive / Nebraska / Tornado Warnings in 2001

Tornado Warning 32, NWS Hastings, NE

August 23, 2001Harlan County, Nebraska

NWS Hastings, NE issued this tornado warning at Aug 23, 2001, 4:43 PM CDT for Harlan County, Nebraska. It was in force for 32 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
Aug 23, 2001, 4:43 PM CDT (21:43 UTC)
Expired
Aug 23, 2001, 5:15 PM CDT
In force
32 min
Issued by
NWS Hastings, NE
Area
Whole counties

County Harlan County, NE

The radar

The Grand Island radar (KUEX), 83 km from the middle of the area, began a volume at 21:46 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
Aug 23, 5:00 PM CDTHail 0.75Alma, NE
Aug 23, 5:20 PM CDTThunderstorm Wind 56 EOrleans, 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 nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 12:00Z, 9.7 hours before the alert went out and 146 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 2001-08-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2466 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 2001-08-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 22 square meters per square second.1939Sfc1 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
2466 J/kg
Mixed-layer CIN
-32 J/kg
Mixed-layer LCL
665 m above ground
0-6 km bulk shear
12 kt
0-1 km storm-relative helicity
22 m²/s²
0-3 km storm-relative helicity
19 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.

316 
WFUS53 KGID 232143
TORGRI
NEC083-232215-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE HASTINGS NE
443 PM CDT THU AUG 23 2001

THE NATIONAL WEATHER SERVICE IN HASTINGS HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHWESTERN HARLAN COUNTY IN SOUTH CENTRAL NEBRASKA

* UNTIL 515 PM CDT

* AT 441 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  DEVELOPING TORNADO OVER NORTHWESTERN HARLAN COUNTY...OR ABOUT 13
  MILES SOUTHWEST OF HOLDREGE...MOVING NORTHEAST AT 10 MPH.

SOME LOCATIONS NEAR THE PATH OF THIS TORNADO INCLUDE RURAL
NORTHWESTERN HARLAN COUNTY.

PEOPLE IN NORTHWESTERN HARLAN COUNTY SHOULD TAKE SHELTER IMMEDIATELY 
IN A BASEMENT OR SMALL INTERIOR ROOM ON THE LOWEST FLOOR.

THIS WARNING REPLACES THE SEVERE THUNDERSTORM WARNING PREVIOUSLY 
ISSUED FOR THE COUNTY. 

IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER IN A NEARBY BUILDING. AS A
LAST RESORT...SEEK SHELTER IN A DITCH OR LOW SPOT AND COVER YOUR HEAD
WITH YOUR HANDS.

$$

NNNN

MORITZ

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 23, 3:58 PM CDTSevere Thunderstorm WarningGIDFurnas, Gosper47 min
Aug 23, 4:34 PM CDTSevere Thunderstorm WarningGIDFurnas, Harlan, Phelps41 min
Aug 23, 4:36 PM CDTSevere Thunderstorm WarningGIDGosper39 min
Aug 23, 5:13 PM CDTSevere Thunderstorm WarningGIDHarlan47 min
Aug 23, 5:29 PM CDTSevere Thunderstorm WarningGIDFranklin61 min
Aug 23, 6:09 PM CDTSevere Thunderstorm WarningGIDWebster66 min
Aug 23, 6:37 PM CDTSevere Thunderstorm WarningGIDAdams53 min
Aug 23, 6:44 PM CDTSevere Thunderstorm WarningGIDNuckolls61 min

Nearby

Tornado Warnings in Nebraska, 2001Every tornado warning in 2001Tornadoes 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.