Alert archive / North Dakota / Severe Thunderstorm Warnings in 1987

Severe Thunderstorm Warning 37, NWS Bismarck, ND

July 31, 1987Mercer County, Morton County, North Dakota

NWS Bismarck, ND issued this severe thunderstorm warning at Jul 31, 1987, 6:24 PM MDT for Mercer County, Morton County, North Dakota. It was in force for 26 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued: Jul 31, 1987, 6:24 PM MDT (00:24 UTC)
Expired: Jul 31, 1987, 6:50 PM MDT
In force: 26 min
Issued by: NWS Bismarck, ND
Area: Whole counties

Counties Mercer County, ND, Morton County, ND

The radar

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

What was reported inside it

Time	Report	Where	Remark
Jul 31, 6:50 PM MDT	Thunderstorm Wind 70	Mercer, ND

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.

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 31, 3:13 PM MDT, 3 hours 11 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BISMARCK ND
415 PM CDT FRI JUL 31 1987

...PACIFIC COOL FRONT TO BRING SOME RELIEF TO NORTH DAKOTA SATURDAY...

A COOL FRONT NOW OVER WESTERN MONTANA IS EXPECTED TO MOVE RAPIDLY
EASTWARD TONIGHT...AND REACH WESTERN NORTH DAKOTA SATURDAY MORNING.
THIS FRONT SHOULD MOVE EASTWARD ACROSS NORTH DAKOTA SATURDAY...AND
THROUGH THE ENTIRE STATE BY SATURDAY NIGHT.

WITH THE PASSAGE OF THIS FRONT...DRIER NORTHWEST WINDS WILL LESSEN
THE HUMIDITIES SOMEWHAT...HOWEVER MAXIMUM TEMPERATURES SATURDAY WILL
STILL BE IN THE MID 80S TO NEAR 90 OVER WEST AND CENTRAL NORTH DAKOTA.

IN THE EAST...SATURDAY WILL BE HOT AND HUMID WITH TEMPERATURES REACHING
THE LOW TO MID 90S...AND NO RELIEF IS EXPECTED THERE UNTIL SATURDAY
NIGHT.

IN THE MEANTIME...WARM AND HUMID CONDITIONS WILL CONTINUE STATEWIDE
THROUGH TONIGHT...AND ALL PERSONS SHOULD CONTINUE TO TAKE PROTECTIVE
MEASURES FROM THE HEAT STRESSf.
RCM

Special weather statement, Jul 31, 4:53 PM MDT, 1 hour 31 minutes before

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Special weather statement, Jul 31, 5:33 PM MDT, 51 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BISMARCK ND
630 PM CDT FRI JUL 31 1987

...THUNDERSTORMS CONTINUING IN WESTERN NORTH DAKOTA...

AT 625 PM CDT NUMEROUS THUNDERSTORMS CONTINUED TO DEVELOP IN WESTERN
NORTH DAKOTA STRETCHING FROM 30 MILES EAST OF WILLISTON TO 30 MILES
SOUTH OF DICKINSON. THE STRONGEST THUNDERSTORMS WERE FOUND NEAR NEW
ENGLAND NORTH DAKOTA...15 SOUTH OF DICKINSON.

THESE THUNDERSTORMS WERE MOVING NORTHEAST AT 35 MILES AN HOUR.

HEAVY RAIN...HAIL...STRONG WINDS...AND FREQUENT LIGHTNING CAN BE
EXPECTED WITH THESE THUNDERSTORMS.

AT 610 PM CDT NEW ENGLAND RECEIVED 50 MPH WINDS AND VERY HEAVY
RAIN.
AT 617 PM CDT BELFIELD REPORTED 1.77 INCHES OF RAIN IN ONE HOUR.

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 31, 6:30 PM MDT	Severe Thunderstorm Warning	BIS	Grant	60 min
Jul 31, 6:59 PM MDT	Severe Thunderstorm Warning	BIS	Mercer, Oliver	61 min
Jul 31, 7:39 PM MDT	Severe Thunderstorm Warning	BIS	McLean	51 min

Nearby

Severe Thunderstorm Warnings in North Dakota, 1987 Every severe thunderstorm warning in 1987

Sources

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