Alert archive / North Dakota / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 2, NWS Grand Forks, ND

June 20, 1995Steele County, North Dakota

NWS Grand Forks, ND issued this severe thunderstorm warning at Jun 20, 1995, 8:09 PM CDT for Steele County, North Dakota. It was in force for 66 min.

The area

The counties it named.

The facts

Issued
Jun 20, 1995, 8:09 PM CDT (01:09 UTC)
Expired
Jun 20, 1995, 9:15 PM CDT
In force
66 min
Issued by
NWS Grand Forks, ND
Area
Whole counties

County Steele County, ND

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 00:00Z, 1.2 hours before the alert went out and 238 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, Bismarck Municip, ND at 00:00Z on 1995-06-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 422 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, Bismarck Municip, ND at 00:00Z on 1995-06-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 151 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
422 J/kg
Mixed-layer CIN
-283 J/kg
Mixed-layer LCL
1214 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
151 m²/s²
0-3 km storm-relative helicity
231 m²/s²
Significant tornado parameter
0.0
Supercell composite
8.4

Open this sounding in Storm Lab

The text

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

000 
WUUS1 KFAR 210109 RRA
SVRFAR
NDC091-210215-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING 
NATIONAL WEATHER SERVICE FARGO ND
809 PM CDT TUE JUN 20 1995

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM 
WARNING EFFECTIVE UNTIL 915 PM CDT FOR PEOPLE IN THE FOLLOWING 
COUNTY

   IN THE EAST CENTRAL PART OF NORTH DAKOTA
      STEELE

AT 805PM CDT...RADAR INDICATED A SEVERE THUNDERSTORM 40 TO 45 MILES
NORTHEAST OF JAMESTOWN...IN THE HOPE/FINLEY/COOPERSTOWN AREAS. THE
STORM WAS MOVING NORTHEAST AT 35 MILES AN HOUR.

WHEN THUNDERSTORMS ARE OCCURRING...YOU SHOULD MOVE INSIDE A
STRONG BUILDING.  DO NOT STAND NEAR WINDOWS.  DO NOT USE TELEPHONES
OR ELECTRICAL APPLIANCES UNTIL THE STORM HAS PASSED.

ARMSTRONG

The office that day

Everything else NWS Grand Forks, ND issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 20, 8:34 PM CDTSevere Thunderstorm WarningFGFGrand Forks56 min
Jun 21, 5:31 PM CDTSevere Thunderstorm WarningFGFCass, Ransom59 min
Jun 21, 6:11 PM CDTTornado WarningFGFCass64 min

Nearby

Severe Thunderstorm Warnings in North Dakota, 1995Every severe thunderstorm warning in 1995

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.