Alert archive / Minnesota / Severe Thunderstorm Warnings in 1988

Severe Thunderstorm Warning 27, NWS Grand Forks, ND

June 18, 1988Hubbard County, Minnesota

NWS Grand Forks, ND issued this severe thunderstorm warning at Jun 18, 1988, 9:24 PM CDT for Hubbard County, Minnesota. It was in force for 66 min.

The area

The counties it named.

The facts

Issued: Jun 18, 1988, 9:24 PM CDT (02:24 UTC)
Expired: Jun 18, 1988, 10:30 PM CDT
In force: 66 min
Issued by: NWS Grand Forks, ND
Area: Whole counties

County Hubbard County, MN

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

International Fa, MN (KINL), launched 00:00Z, 2.4 hours before the alert went out and 202 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: 882 J/kg
Mixed-layer CIN: -151 J/kg
Mixed-layer LCL: 1984 m above ground
0-6 km bulk shear: 43 kt
0-1 km storm-relative helicity: 57 m²/s²
0-3 km storm-relative helicity: 122 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.4

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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, Jun 18, 5:32 PM CDT, 3 hours 52 minutes before

SPECIAL WEATHER STATEMENT RADAR SUMMARY
NATIONAL WEATHER SERVICE FARGO ND
535 PM CDT SAT JUN 18 1988

...SEVERE THUNDERSTORM WATCH FOR EASTERN NORTH DAKOTA...NORTHWEST AND
   WEST CENTRAL MINNESOTA UNTIL 1000PM CDT.

AT 525 PM CDT...AN ISOLATED STRONG THUNDERSTORM HAD DEVELOPED RAPIDLY
OVER EAST CENTRAL NORTH DAKOTA 50 MILES SOUTHWEST OF GRAND FORKS. THIS
STORM WILL MOVE THROUGH THE ANETA...SHARON/FINLEY AREAS BY 630 PM CDT.

THIS STORM COULD PRODUCE BRIEF HEAVY RAIN...DANGEROUS LIGHTNING AND
STRONG WINDS. MOVEMENT OF THIS STORM WAS EAST AT 45 MILES AN HOUR.

ELSEWHERE...SCATTERED SHOWERS AND THUNDERSTORMS...A FEW WITH HEAVY RAIN
CONTINUED OVER NORTHEAST NORTH DAKOTA...NORTHWEST AND NORTH CENTRAL
MINNESOTA.

MOVEMENT WAS EAST AT 45 MILES AN HOUR.
VOELKER

Local storm report, Jun 18, 7:30 PM CDT, 1 hour 54 minutes before

STORM REPORTS
NATIONAL WEATHER SERVICE FARGO ND
710 PM CDT SAT JUN 18 1988

TIME      EVENT
540 PM     GOLFBALL SIZE HAIL REPORTED IN BINFORD NORTH DAKOTA...45
           MILES SOUTHWEST OF THE GRAND FORKS AIR FORCE BASE. REPORTED
           BY GRIGG COUNTY SHERIFF.
550 PM     GRIGGS COUNTY SHERIFF REPORTED PEA TO WALNUT SIZED HAIL AT
           COOPERSTOWN NORTH DAKOTA.
545 PM     GRIGGS COUNTY SHERIFF REPORTED 11/2 HAIL 5 NORTHEAST OF
           COOPERSTOWN.
600 PM     2 INCH DIAMETER HAIL REPORTED IN BINFORD AREA NORTH DAKOTA
           AND IN JESSIE AREA...50 MILES SOUTHWEST OF GRAND FORKS.
615 PM     AIR FORCE COOP ABSERVER 15 MILES SOUTHEAST OF COOPERSTOWN
           REPORTED TORNADO> ON THE GROUND.

Local storm report, Jun 18, 8:10 PM CDT, 1 hour 14 minutes before

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Local storm report, Jun 18, 8:47 PM CDT, 37 minutes before

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        The site you requested is temporarily down for maintenance or an unexpected outage.
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The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 18, 7:17 PM CDT	Tornado Warning	FGF	Traill	58 min
Jun 18, 7:12 PM CDT	Severe Thunderstorm Warning	FGF	Mahnomen, Norman, Polk	63 min
Jun 18, 7:35 PM CDT	Tornado Warning	FGF	Mahnomen, Norman	55 min
Jun 18, 7:45 PM CDT	Severe Thunderstorm Warning	FGF	Beltrami, Clearwater	60 min
Jun 18, 8:15 PM CDT	Severe Thunderstorm Warning	FGF	Mahnomen, Norman, Polk	60 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 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.