Alert archive / North Dakota / Severe Thunderstorm Warnings in 1991

Severe Thunderstorm Warning 1, NWS Bismarck, ND

May 12, 1991McHenry County, North Dakota

NWS Bismarck, ND issued this severe thunderstorm warning at May 12, 1991, 3:43 PM CDT for McHenry County, North Dakota. It was in force for 62 min.

The area

The counties it named.

The facts

Issued: May 12, 1991, 3:43 PM CDT (20:43 UTC)
Expired: May 12, 1991, 4:45 PM CDT
In force: 62 min
Issued by: NWS Bismarck, ND
Area: Whole counties

County McHenry County, ND

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, May 12, 9:44 AM CDT, 5 hours 59 minutes before

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Special weather statement, May 12, 1:04 PM CDT, 2 hours 39 minutes before

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Special weather statement, May 12, 1:50 PM CDT, 1 hour 53 minutes before

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Special weather statement, May 12, 2:44 PM CDT, 59 minutes before

NDZ001>003-005-122030-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WILLISTON ND
240 PM CDT SUN MAY 12 1991

...TORNADO WATCH IN EFFECT UNTIL 900 PM CDT FOR MOUNTRAIL COUNTY IN
NORTHWEST NORTH DAKOTA...

AT 235 PM CDT...NATIONAL WEATHER SERVICE RADAR IN WILLISTON INDICATED
STRONG THUNDERSTORMS 45 MILES NORTHEAST OF WILLISTON...ALONG THE
MOUNTRAIL/WILLIAMS COUNTY BORDER.  THESE THUNDERSTORMS WERE MOVING TO
THE NORTH AT 40 MILES AN HOUR.

THESE THUNDERSTORMS WILL PRODUCE DEADLY LIGHTNING STRIKES...GUSTY WINDS
...AND HEAVY DOWNPOURS.

RADAR AT 235 PM CDT WAS NOT SHOWING ANY SEVERE WEATHER BUT REMEMBER...
THUNDERSTORMS CAN AND SOMETIMES DO PRODUCE TORNADOES.

OTHER THUNDERSTORMS WEREr DEVELOPING OVER MCKENZIE AND WILLIAMS COUNTIES.

IF THESE THUNDERSTORMS MOVE INTO YOUR AREA...SEEK SHELTER IMMEDIATELY.

MARTIN

Special weather statement, May 12, 3:00 PM CDT, 43 minutes before

NDZ001>018-122200-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BISMARCK ND
255 PM CDT SUN MAY 12 1991

...TORNADO WATCH IN EFFECT FOR CENTRAL NORTH DAKOTA UNTIL 9PM CDT...

VERY UNSTABLE AIR HAS SPAWNED A THREAT OF SEVERE THUNDERSTORMS AND
TORNADOS OVER CENTRAL NORTH DAKOTA THIS AFTERNOON AND EVENING.

AT 255 PM CDT...RADARS SHOWED A BAND OF SCATTERED THUNDERSTORMS ABOUT
30 MILES WIDE EXTENDING FROM THE SOUTH DAKOTA BORDER SOUTH OF BISMARCK
ACROSS EASTERN LAKE SAKAKAWEA TO JUST SOUTHWEST OF MINOT. SOME OF THE
STORMS CONTAINED BRIEF HEAVY RAIN AND POSSIBLE HAIL. THEY WERE MOVING
NORTH ABOUT 30 MPH.

A COLD FRONT JUST WEST OF THIS BAND WILL MOVE EAST ACROSS CENTRAL
NORTH DAKOTA THIS AFTERNOON AND EVENING. IT WILL INCREASE THE RISK
OF SEVERE WEATHER. PERSONS IN CENTRAL NORTH DAKOTA SHOULD STAY ALERT FOR
POSSIBLE FUTURE WARNINGS.

LM

Special weather statement, May 12, 3:42 PM CDT, 1 minute before

NDZ001>003-005-122140-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WILLISTON ND
340 PM CDT SUN MAY 12 1991

...TORNADO WATCH IN EFFECT UNTIL 900 PM CDT FOR MOUNTRAIL COUNTY IN
NORTHWEST NORTH DAKOTA...

AT 335 PM CDT...STRONG THUNDERSTORMS WERE OCCURRING 90 MILES NORTHEAST
OF WILLISTON...BETWEEN THE TOWNS OF AMBROSE AND COLUMBUS NORTH DAKOTA.
OTHER THUNDERSTORMS WERE SCATTERED ACROSS THE AREA.  THUNDERSTORMS WERE
MOVING TO THE NORTHWEST AT 35 MILES AN HOUR.

THESE THUNDERSTORMS MAY PRODUCE DEADLY LIGHTNING STRIKES...HAIL...GUSTY
WINDS...AND HEAVY RAIN.

NATIONAL WEATHER SERVICE RADAR AT 335 PM WAS NOT SHOWING ANY SEVERE
WEATHER BUT REMEMBER...THUNDERSTORMS ARE CAPABLE OF PRODUCING TORNADOES.

IF THUNDERSTORMS MOVE INTO YOUR AREA...SEEK SHELTER AS SOON AS POSSIBLE
...DO NOT DELAY.

MARTIN

The office that day

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

Issued	Product	Office	Counties	Lasted
May 12, 4:28 PM CDT	Severe Thunderstorm Warning	BIS	Burleigh	47 min
May 12, 5:19 PM CDT	Severe Thunderstorm Warning	BIS	Benson	41 min
May 12, 6:05 PM CDT	Tornado Warning	BIS	Benson	40 min
May 12, 6:12 PM CDT	Severe Thunderstorm Warning	BIS	Emmons	33 min
May 12, 6:23 PM CDT	Severe Thunderstorm Warning	BIS	Logan	37 min

Nearby

Severe Thunderstorm Warnings in North Dakota, 1991 Every severe thunderstorm warning in 1991

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.