Severe Thunderstorm Warning 5, NWS Grand Forks, ND

Issued

May 12, 1986, 12:08 AM CDT (05:08 UTC)

Expired

May 12, 1986, 1:15 AM CDT

In force

67 min

Issued by

NWS Grand Forks, ND

Area

Whole counties

County Grand Forks County, ND

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

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.

000 
TTAA00 KFAR 120508
SVRFAR
NDC035-120615-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE FARGO ND
1208 AM CDT MON MAY 12 1986

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM 
WARNING EFFECTIVE UNTIL 115 AM CDT FOR PEOPLE IN THE FOLLOWING 
COUNTIES OF

NORTHEAST NORTH DAKOTA...SOUTHERN GRAND FORKS AND CITY OF GRAND FORKS

AT 1155 PM CDT RADAR INDICATED A SEVERE THUNDERSTORM 10 MILES SOUTH
OF NORTHWOOD NORTH DAKOTA IN SOUTHWEST GRAND FORKS COUNTY MOVING
NORTHEAST AT 25 MILES AN HOUR.

AT 1155 PM 3/4 INCH HAIL WAS REPORTED NEAR THE CITY OF NORTHWOOD
NORTH DAKOTA.

REMEMBER...SEVERE THUNDERSTORMS CAN PRODUCE DAMAGING WINDS IN EXCESS
OF 58 MPH AND/OR HAIL 3/4 OF AN INCH OR LARGER...DEADLY LIGHTNING...
AND HEAVY RAINS THAT CAN QUICKLY FLOOD A LOW LYING AREA.

THESE STORMS CAN AND OCCASIONALLY DO PRODUCE A TORNADO WITH LITTLE
OR NO ADVANCE WARNING...SO YOU SHOULD BE ON THE LOOKOUT AND BE
PREPARED TO MOVE TO A PLACE OF SAFETY.

THIS SLOW MOVING THUNDERSTORM MAY CAUSE FLOODING OF SMALL STREAMS
AND UNDERPASSES.

SPIES

In the hours before

STORM REPORT
NATIONAL WEATHER SERVICE FARGO ND
815 PM CDT SUN MAY 11 1986

415 PM CDT...LANGDON ND SHERIFFS OFFICE REPORTED PEA SIZE HAIL 15
             MILES WEST OF LANGDON ND IN WESTERN CAVALIER COUNTY.

540 PM CDT...LANGDON ND SHERIFFS OFFICE REPORTED PEA TO MARBLE SIZE
             HAIL IN LANGDON ND IN CENTRAL CAVALIER COUNTY.

755 PM CDT...PEMBINA ND COUNTY SHERIFF REPORTED EGG SIZE HAIL AT
             MOUNTAIN ND IN SOUTHWEST PEMBINA COUNTY.
SPIES

STORM REPORT
NATIONAL WEATHER SERVICE FARGO ND
1115 PM CDT SUN MAY 11 1986

TIME    EVENT
900PM   CO OPERATIVE OBSERVER REPORTED 1/2 TO 3/4 INCH HAIL 7 MILES
        NORTHWEST OF CAVALIER NORTH DAKOTA AS WELL AS .85 IN RAIN.

900PM   COURTNEY NORTH DAKOTA, 1 NW, CO OPERATIVE OBSERVER REPORTED 1/4
        INCH HAIL..VERY HEAVY RAIN..NO HAIL.

955PM   20 MILES WEST OF SHARON NORTH DAKOTA..CO OPERATIVE OBSERVER
        REPORTED VERY HEAVY RAIN..NO HAIL..HIGH WINDS 55 TO 60 MPH.

1032PM  1/4 INCH HAIL REPORTED BY AMATUER RADIO OPERATOR IN COOPERSTOWN
        NORTH DAKOTA.

1050PM  ARVILLA NORTH DAKOTA CO OPERATIVE OBSERVER REPORTED 1/4 INCH
        HAIL AND VERY HEAVY RAIN.

1105PM  HANNAFORD NORTH DAKOTA REPORTED HIWAY 1 WAS UNDER 3 TO 4 INCHES
        OF WATER OVER THE ROAD.  JUST SOUTH OF HANNAFORD NORTH DAKOTA
        VISIBILITY REPORTED NEAR ZERO WIND WINDS ESTIMATED 60 TO 70 MPH.
EWENS

Severe Thunderstorm Warnings in North Dakota, 1986Every severe thunderstorm warning in 1986

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; the sounding from the Mesonet's radiosonde archive.