Alert archive / North Dakota / Tornado Warnings in 1992

Tornado Warning 7, NWS Grand Forks, ND

July 9, 1992Cass County, North Dakota

NWS Grand Forks, ND issued this tornado warning at Jul 9, 1992, 4:33 PM CDT for Cass County, North Dakota. It was in force for 27 min. 1 report 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
Jul 9, 1992, 4:33 PM CDT (21:33 UTC)
Expired
Jul 9, 1992, 5:00 PM CDT
In force
27 min
Issued by
NWS Grand Forks, ND
Area
Whole counties

County Cass County, ND

What was reported inside it

TimeReportWhereRemark
Jul 9, 4:35 PM CDTTornado F0Cass, ND

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. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 12:00Z, 9.6 hours before the alert went out and 263 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 12:00Z on 1992-07-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 13 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 12:00Z on 1992-07-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 63 square meters per square second.1939587897Sfc1 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
13 J/kg
Mixed-layer CIN
-170 J/kg
Mixed-layer LCL
916 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
63 m²/s²
0-3 km storm-relative helicity
44 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 
TTAA00 KFAR 092133
TORFAR
NDC017-092200-

BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED 
TORNADO WARNING 
NATIONAL WEATHER SERVICE FARGO ND
433 PM CDT THU JUL 9 1992

THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WARNING 
EFFECTIVE UNTIL 500 PM CDT FOR PEOPLE IN THE FOLLOWING COUNTY

   IN THE EAST CENTRAL PART OF NORTH DAKOTA
      EASTERN CASS

AT 428 PM CDT...A FUNNEL CLOUD WAS SPOTED 15 MILES NORWEST OF
THE AIRPORT AT FARGO ND MOVING SOUTHEAST.

TAKE COVER NOW...THIS WARNING INCLUDES THE FARGO/MOORHEAD AREA.

MORINR

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 9, 2:07 PM CDTSevere Thunderstorm WarningFGFGriggs, Nelson53 min
Jul 9, 2:19 PM CDTSevere Thunderstorm WarningFGFNelson41 min
Jul 9, 2:58 PM CDTSevere Thunderstorm WarningFGFGriggs, Steele62 min
Jul 9, 4:00 PM CDTSevere Thunderstorm WarningFGFSteele60 min
Jul 9, 4:20 PM CDTSevere Thunderstorm WarningFGFCass, Traill55 min
Jul 9, 4:56 PM CDTTornado WarningFGFCass34 min
Jul 9, 5:07 PM CDTSevere Thunderstorm WarningFGFTraill68 min
Jul 9, 5:43 PM CDTSevere Thunderstorm WarningFGFCass47 min

Nearby

Tornado Warnings in North Dakota, 1992Every tornado warning in 1992Tornadoes in 1992

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.