Alert archive / North Dakota / Severe Thunderstorm Warnings in 1988

Severe Thunderstorm Warning 13, NWS Grand Forks, ND

May 28, 1988Cavalier County, North Dakota

NWS Grand Forks, ND issued this severe thunderstorm warning at May 28, 1988, 7:29 PM CDT for Cavalier County, North Dakota. It was in force for 61 min.

The area

The counties it named.

The facts

Issued: May 28, 1988, 7:29 PM CDT (00:29 UTC)
Expired: May 28, 1988, 8:30 PM CDT
In force: 61 min
Issued by: NWS Grand Forks, ND
Area: Whole counties

County Cavalier County, ND

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 00:00Z, 0.5 hours before the alert went out and 278 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1277 J/kg
Mixed-layer CIN: -63 J/kg
Mixed-layer LCL: 2359 m above ground
0-6 km bulk shear: 21 kt
0-1 km storm-relative helicity: -8 m²/s²
0-3 km storm-relative helicity: 32 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.3

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KFAR 290029
SVRFAR
NDC019-290130-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING 
NATIONAL WEATHER SERVICE FARGO ND
729 PM CDT SAT MAY 28 1988

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM 
WARNING EFFECTIVE UNTIL 830 PM CDT FOR PEOPLE IN THE FOLLOWING 
COUNTY

   IN THE NORTHEAST PART OF NORTH DAKOTA
      SOUTHERN CAVALIER

725 PM CDT A SEVERE THUNERSTORM WAS LOCATED NEAR NEKOMA IN SOUTHERN
CAVALIER COUNTY OF NORTHEAST NORTH DAKOTA. THIS THUNDERSTORM WAS
MOVING NORTH AT 10 MILES AN HOUR. THIS THUNDERSTORM HAD PRODUCED
3/4 INCH HAIL IN NEKOMA NORTH DAKOTA..CAVALIER COUNTY.

SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS IN EXCESS OF 55
MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN.
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR
OF YOUR HOME OR BUSINESS.  HEAVY RAIN MAY FLOOD ROADWAYS QUICKLY
...AVOID DRIVING INTO AREAS WHERE WATER COVERS THE ROAD.

THIS IS A DANGEROUS STORM.  IF YOU ARE IN ITS PATH...PREPARE FOR
DAMAGING WINDS...LARGE HAIL...AND DEADLY LIGHTNING.  PEOPLE OUTSIDE
SHOULD MOVE TO SHELTER...PREFERABLY INSIDE A STRONG BUILDING.  ONCE
INSIDE...STAY AWAY FROM WINDOWS.

ANDERSEN

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Special weather statement, May 28, 5:56 PM CDT, 1 hour 33 minutes before

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE FARGO ND
555 PM CDT SAT MAY 28 1988

...SEVERE THUNDERSTORM WATCH FOR PARTS OF EASTERN NORTH DAKOTA AND MUCH
OF NORTHERN MINNESOTA UNTIL 11PM CDT...

AT 530 PM CDT...A DANGEROUS THUNDERSTORM WAS LOCATED JUST EAST OF DEVILS
LAKE MOVING NORTHEAST AT 15 MILES AN HOUR.  THIS THUNDERSTORM HAD
PRODUCED LARGE HAIL...3/4 INCH...IN DEVILS LAKE.  THIS STORM WILL MOVE
NORTHEAST INTO SOUTHERN CAVALIER COUNTY AND WESTERN WALSH COUNTY OF
NORTHEAST NORTH DAKOTA BY 630 PM CDT.  IF YOU LIVE IN THE PATH OF THIS
STORM BE PREPARED TO MOVE TO A SAFE PLACE.

IN ADDITION...WIDELY SCATTERED THUNDERSTORMS WERE LOCATED OVER NORTHWEST
MINNESOTA IN THE THIEF RIVER FALLS AREA.  THE STRONGEST STORM WAS 20
MILES NORTHWEST OF THIEF RIVER FALLS.  OTHER THUNDERSTORMS AND SHOWERS
WERE DEVELOPING OVER WEST CENTRAL MINNESOTA NEAR ALEXANDRIA.

CONDITIONS ARE FAVORABLE FOR THE CONTINUED CEVELOPMEINT OF THESE AND
OTHER THUNDERSTORMS THROUGHOUT THE WATCH AREA DURING THE EVENING.
STAY TUNED TO RADIO ...T.V. AS ELL AS NOAA WEATHER RADIO FOR LATER
STATEMENTS AND POSSIBLE WARNINGS.
EWENS

Local storm report, May 28, 6:50 PM CDT, 39 minutes before

STORM REPORTS
NATIONAL WEATHER SERVICE FARGO ND
645 PM CDT SAT MAY 28 1988

TIME       EVENT
6PM CDT    1/4 TO 1/2 INCH HAIL REPORTED IN THE CITY OF ALEXANDRIA
           MINNESOTA BY THE DOUGLAS COUNTY MINNESOTA SHERIFFS DEPT.
620 PM CDT DOUGLAS COUNTY SHERIFFS DEPT..ALEXANDRIA MINNESOTA..REPORTED
           THUNDERSTORM HAD MOVED NORTH OF CITY. REPORTED LOTS OF HAIL
           ..VERY HEAVY RAIN AND GUSTY WINDS.
ANDERSEN

Special weather statement, May 28, 7:01 PM CDT, 28 minutes before

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE FARGO ND
658 PM CDT SAT MAY 28 1988

...SEVERE THUNDERSTORM WARNING IN EFFECT FOR DOUGLAS AND SOUTHEAST
OTTERTAIL COUNTIES UNTIL 715 PM CDT...
...SEVERE THUNDERSTORM WARNING IN EFFECT FOR SOUTHERN CAVALIER COUNTY
OF NORTHEAST NORTH DAKOTA UNTIL 735 PM...

...SEVERE THUNDERSTORM WATCH FOR PARTS OF EASTERN NORTH DAKOTA AND MUCH
OF NORTHERN MINNESOTA UNTIL 11PM CDT...

AT 758 PM CDT A DANGEROUS THUNDERSTORM WAS LOCATED 15 MILES SOUTH OF
PARKERS PRAIRIE IN SOUTHEAST OTTER TAIL COUNTY OF MINNESOTA. THIS
THUNDERSTORM WAS MOVING NORTH AT 25 MILES AN HOUR AND WILL BE PASSING
THROUGH THE SOUTHEAST CORNER OF OTTER TAIL COUNTY BETWEEN THE TOWNS
OF BATTLE LAKE AND OTTER TAIL BY 735 PM CDT. THIS THUNDERSTORM HAD
PRODUCED SMALL HAIL..BRIEF HEAVY RAIN AND GUSTY WINDS.

BE PREPARED TO SEEK SHELTER IN NECESSARY.
ANDERSEN

The office that day

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

Issued	Product	Office	Counties	Lasted
May 28, 9:25 PM CDT	Severe Thunderstorm Warning	FGF	Grand Forks, Walsh	65 min

Nearby

Severe Thunderstorm Warnings in North Dakota, 1988 Every severe thunderstorm warning in 1988

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.