Alert archive / Minnesota / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 13, NWS Grand Forks, ND

July 12, 1995Otter Tail County, Minnesota

NWS Grand Forks, ND issued this severe thunderstorm warning at Jul 12, 1995, 4:29 AM CDT for Otter Tail County, Minnesota. It was in force for 61 min.

The area

The counties it named.

The facts

Issued
Jul 12, 1995, 4:29 AM CDT (09:29 UTC)
Expired
Jul 12, 1995, 5:30 AM CDT
In force
61 min
Issued by
NWS Grand Forks, ND
Area
Whole counties

County Otter Tail County, MN

The nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 9.5 hours before the alert went out and 239 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, Minneapolis, MN at 00:00Z on 1995-07-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2299 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, Minneapolis, MN at 00:00Z on 1995-07-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -8 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
2299 J/kg
Mixed-layer CIN
-40 J/kg
Mixed-layer LCL
1369 m above ground
0-6 km bulk shear
44 kt
0-1 km storm-relative helicity
-8 m²/s²
0-3 km storm-relative helicity
122 m²/s²
Significant tornado parameter
0.1
Supercell composite
2.3

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KFAR 120929 RRA
SVRFAR
MNC005-087-111-121030-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING 
NATIONAL WEATHER SERVICE FARGO ND
429 AM CDT WED JUL 12 1995

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM 
WARNING EFFECTIVE UNTIL 530 AM CDT FOR PEOPLE IN THE FOLLOWING 
COUNTIES

   IN THE NORTHWEST PART OF MINNESOTA
      BECKER...MAHNOMEN...THE CITY OF DETROIT LAKES...

   IN THE WEST CENTRAL PART OF MINNESOTA
      OTTER TAIL...THE CITY OF FERGUS FALLS...

AT 430 AM CDT...A LINE OF SEVERE THUNDERSTORMS WAS LOCATED 35 MILES
NORTHEAST OF FARGO...TO FERGUS FALLS.  THIS LINE OF THUNDERSTORMS
WAS MOVING EAST AT NEARLY 70 MPH.

WHEN THUNDERSTORMS ARE OCCURRING...YOU SHOULD MXOVE 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
Jul 12, 3:32 AM CDTSevere Thunderstorm WarningFGFClay, Wilkin58 min
Jul 12, 3:51 AM CDTSevere Thunderstorm WarningFGFTraverse39 min
Jul 12, 3:51 AM CDTSevere Thunderstorm WarningFGFBecker, Otter Tail39 min
Jul 12, 4:29 AM CDTSevere Thunderstorm WarningFGFBecker, Mahnomen61 min
Jul 12, 5:10 AM CDTSevere Thunderstorm WarningFGFBeltrami, Clearwater65 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 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.