Alert archive / Wyoming / Tornado Warnings in 2001

Tornado Warning 21, NWS Rapid City, SD

July 26, 2001Campbell County, Wyoming

NWS Rapid City, SD issued this tornado warning at Jul 26, 2001, 5:14 PM MDT for Campbell County, Wyoming. It was in force for 31 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 26, 2001, 5:14 PM MDT (23:14 UTC)
Expired
Jul 26, 2001, 5:45 PM MDT
In force
31 min
Issued by
NWS Rapid City, SD
Area
Whole counties; the outline is the Mesonet’s reconstruction

County Campbell County, WY

The nearest sounding before it

Rapid City, SD (KUNR), launched 12:00Z, 11.2 hours before the alert went out and 197 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, Rapid City, SD at 12:00Z on 2001-07-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1164 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, Rapid City, SD at 12:00Z on 2001-07-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 70 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
1164 J/kg
Mixed-layer CIN
-169 J/kg
Mixed-layer LCL
660 m above ground
0-6 km bulk shear
21 kt
0-1 km storm-relative helicity
70 m²/s²
0-3 km storm-relative helicity
122 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 
WFUS53 KUNR 262315
TORRAP

WYC005-262345-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE RAPID CITY SD
514 PM MDT THU JUL 26 2001

THE NATIONAL WEATHER SERVICE IN RAPID CITY SD HAS ISSUED A

* TORNADO WARNING FOR...
  EASTERN CAMPBELL COUNTY IN NORTHEAST WYOMING

* UNTIL 545 PM MDT

* LAW ENFORCEMENT OFFICIALS CONTINUE TO REPORT FUNNEL CLOUDS AND     
  SMALL TORNADOES ACROSS EASTERN CAMPBELL COUNTY.

* LOCATIONS IN THE WARNING INCLUDE...
  RURAL AREAS EAST OF GILLETTE AND WESTON...

MOVE QUICKLY TO A STURDY INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR 
HOME OR BUSINESS. ABANDON YOUR CAR OR MOBILE HOME FOR A STRONGER 
SHELTER.

THIS WARNING EXTENDS THE TORNADO WARNING PREVIOUSLY ISSUED FOR THE
AREA.

LAT...LON 4488 10511 4427 10510 4427 10542 4487 10540

WCJIN-WYNE

&

JOHNSON

The office that day

Everything else NWS Rapid City, SD issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 26, 1:07 AM MDTSevere Thunderstorm WarningUNRCrook38 min
Jul 26, 4:34 PM MDTTornado WarningUNRCampbell41 min
Jul 26, 5:00 PM MDTTornado WarningUNRCrook45 min

Nearby

Tornado Warnings in Wyoming, 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; the sounding from the Mesonet's radiosonde archive.