Alert archive / North Dakota / Severe Thunderstorm Warnings in 1993

Severe Thunderstorm Warning 14, NWS Grand Forks, ND

June 23, 1993Sargent County, North Dakota

NWS Grand Forks, ND issued this severe thunderstorm warning at Jun 23, 1993, 8:34 PM CDT for Sargent County, North Dakota. It was in force for 56 min.

The area

The counties it named.

The facts

Issued
Jun 23, 1993, 8:34 PM CDT (01:34 UTC)
Expired
Jun 23, 1993, 9:30 PM CDT
In force
56 min
Issued by
NWS Grand Forks, ND
Area
Whole counties

County Sargent County, ND

The nearest sounding before it

Minneapolis, MN (KSTC), launched 00:00Z, 1.6 hours before the alert went out and 344 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 1993-06-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 508 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 1993-06-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 152 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
508 J/kg
Mixed-layer CIN
-48 J/kg
Mixed-layer LCL
778 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
152 m²/s²
0-3 km storm-relative helicity
190 m²/s²
Significant tornado parameter
0.3
Supercell composite
2.9

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 23, 6:41 PM CDT, 1 hour 53 minutes before
NDZ012-013-014-015-016-017-018-MNZ001-006-007-010-011-013-240030-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE FARGO ND
635 PM CDT WED JUN 23 1993

...SEVERE THUNDERSTORM WATCH IN EFFECT FOR A LARGE PORTION OF EASTERN
   NORTH DAKOTA UNTIL MIDNIGHT...

AT 625 PM CDT...WIDELY SCATTERED SHOWERS AND THUNDERSTORMS...SOME WITH
VERY HEAVY RAIN CONTINUE TO DEVELOP OVER SOUTHEAST NORTH DAKOTA...NORTH-
EAST SOUTH DAKOTA AND A PORTION OF NORTH CENTRAL MINNESOTA.

THE STRONGEST THUNDERSTORMS...WITH VERY HEAVY RAIN WERE GENERALLY OVER
NORTHEAST SOUTH DAKOTA FROM AROUND ABERDEEN TO NORTHEAST OF ABERDEEN
NEAR BRITTON.

THUNDERSTORMS WITH HEAVY RAIN WERE ALSO OVER SOUTHEAST NORTH DAKOTA
MAINLY OVER RANSOM COUNTY...WEST AND SOUTHEAST OF LISBON.

ANOTHER AREA OF SCATTERED THUNDERSTORMS WAS OVER NORTH CENTRAL MINNESOTA
FROM AROUND BEMIDJI...NORTHWARD TO THE RAINY RIVER EAST OF BAUDETTE
ALONG THE INTERNATIONAL BORDER.

THESE SHOWERS AND THUNDERSTORMS WERE ALL MOVING NORTH-NORTHEAST AT
35 MILES AN HOUR AND AREAL COVERAGE HAD INCREASED SINCE 530 PM.

LARGE HAIL...DAMAGING WINDS...DANGEROUS LIGHTNING AND VERY HEAVY RAIN
ARE ALL POSSIBLE WITH THESE THUNDERSTORMS.
SPIES

Nearby

Severe Thunderstorm Warnings in North Dakota, 1993Every severe thunderstorm warning in 1993

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.