Alert archive / North Dakota / Severe Thunderstorm Warnings in 1993

Severe Thunderstorm Warning 45, NWS Bismarck, ND

July 23, 1993McIntosh County, North Dakota

NWS Bismarck, ND issued this severe thunderstorm warning at Jul 23, 1993, 5:03 PM CDT for McIntosh County, North Dakota. It was in force for 57 min.

The area

The counties it named.

The facts

Issued: Jul 23, 1993, 5:03 PM CDT (22:03 UTC)
Expired: Jul 23, 1993, 6:00 PM CDT
In force: 57 min
Issued by: NWS Bismarck, ND
Area: Whole counties

County McIntosh County, ND

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 12:00Z, 10.1 hours before the alert went out and 121 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 0 m above ground
0-6 km bulk shear: 31 kt
0-1 km storm-relative helicity: 49 m²/s²
0-3 km storm-relative helicity: 61 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

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, Jul 23, 12:51 PM CDT, 4 hours 12 minutes before

NDZ001>018-231900-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BISMARCK ND
1250 PM CDT FRI JUL 23 1993

...WEAK FUNNELS HAVE BEEN REPORTED SOUTHWEST OF MINOT...

AT 1245 PM FUNNEL CLOUDS WERE SIGHTED TO THE SOUTHWEST OF MINOT.
THESE WERE PROBABLY COLD AIR FUNNEL CLOUDS...AND WERE MOVING TOWARD
THE NORTHEAST AT 25 MPH.

THESE WEAK FUNNEL CLOUDS ARE NOT ASSOCIATED WITH SEVERE THUNDERSTORMS.
THEY ARE FORMED BY THUNDERSHOWERS OR RAIN SHOWERS WHEN UNIQUE
METEOROLOGICAL CONDITIONS ARE MET.

THESE FUNNELS GENERALLY DO NOT REACH THE GROUND AND ARE USUALLY SHORT
LIVED. THEY HAVE...HOWEVER...ON RARE OCCASION TOUCHED THE GROUND AND
CAUSED DAMAGE. BECASUE OF THIS POSSIBILITY...SEEK SHELTER IFl THESE
WEAK FUNNELS ARE OBSERVED IN YOUR AREA.
<
RCM

Special weather statement, Jul 23, 2:15 PM CDT, 2 hours 48 minutes before

NDZ001-003>005-232000-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WILLISTON ND
215 PM CDT FRI JUL 23 1993

SHOWERS AND THUNDERSTORMS CONTINUE ACROSS WESTERN NORTH DAKOTA..THE
STRONGEST THUNDERSTORM IS LOCATED IN WEST CENTRAL BURKE COUNTY.  THE
THUNDERSTORM IS 50 NAUTICAL MILES NORTHEAST OF WILLISTON, NORTH DAKOTA.
THIS THUNDERSTORM AND A SERIES OF SHOWERS AND THUNDERSTORMS CONTINUE
IN AN ARC FROM PLENTYWOOD MONTANA TO CROSBY NORTH DAKOTA TO JUST SOUTH
OF MINOT NORTH DAKOTA.  THE STORMS ARE VERY SLOW..MOVING TO THE NNW AT
10 MPH.

THESE STORMS ARE CAPABLE OF PRODUCING VERY HEAVY RAIN..SMALL HAIL..GUSTY
WINDS AND DANGEROUS LIGHTNING.  IN THE MINOT AREA A FEW COLD AIR FUNNELS
HAVE BEEN REPORTED..THESE ARE USUALLY SHORT LIVED AND RARELY TOUCH THE
GROUND.  HOWEVER BECAUSE OF THE POSSIBILITY OF TOUCHING THE GROUND THESE
FUNNELS..AS WELL AS THE HAIL AND LIGHTNING..PERSONS IN THE PATH SHOULD
SEEK SHELTER IF OBSERVED IN YOUR VICINITY.
ALLARD

Special weather statement, Jul 23, 2:18 PM CDT, 2 hours 45 minutes before

NDZ001>018-232000-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BISMARCK ND
215 PM CDT FRI JUL 23 1993

...MORE FUNNEL CLOUD SIGHTNINGS NEAR MINOT...

AT 205 PM...A FUNNEL CLOUD WAS SIGHTED BY A PILOT JUST WEST OF BERTHOLD
...WHICH IS 25 MILES WEST NORTHWEST OF MINOT ON HIGHWAY 2. MEANWHILE
ANOTHER FUNNEL CLOUD WAS SIGHTED 10 MILES SOUTH OF MOHALL...OR 35 MILES
NORTHWEST OF MINOT.

THESE...AND OTHER FUNNEL CLOUD SIGHTINGS IN THE AREA...ARE PROBABLY
COLD AIR FUNNEL CLOUDS. THESE WEAK FUNNELS FORM IN COOL AND UNSTABLE
AIR.

COLD AIR FUNNELS RARELY TOUCH DOWN...AND ONLY FOR A FEW MOMENTS WHEN
THEY DO. BECAUSE THERE IS A SLIGHT RISK WITH THESE FUNNEL CLOUDS...
PERSONS WHO DO SIGHT SUC@H SMALL ROTATING CLOUDS SHOULD KEEP AN EYE ON
THEM AND TAKE SHELTER IN A STURDY HOME IF A TOUCHDOWN LOOKS IMMINENT.

RCM

Special weather statement, Jul 23, 3:41 PM CDT, 1 hour 22 minutes before

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Special weather statement, Jul 23, 4:25 PM CDT, 38 minutes before

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Special weather statement, Jul 23, 4:42 PM CDT, 21 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 22, 7:32 PM CDT	Severe Thunderstorm Warning	BIS	McLean, Sheridan	43 min
Jul 23, 2:44 PM CDT	Tornado Warning	BIS	Kidder, Stutsman	19 min
Jul 23, 2:44 PM CDT	Tornado Warning	BIS	Wells	46 min

Nearby

Severe Thunderstorm Warnings in North Dakota, 1993 Every 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.