Alert archive / North Dakota / Severe Thunderstorm Warnings in 1986

Severe Thunderstorm Warning 50, NWS Grand Forks, ND

July 16, 1986Ransom County, Richland County, North Dakota

NWS Grand Forks, ND issued this severe thunderstorm warning at Jul 16, 1986, 11:33 AM CDT for Ransom County, Richland County, North Dakota. It was in force for 57 min. 3 reports 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 16, 1986, 11:33 AM CDT (16:33 UTC)
Expired
Jul 16, 1986, 12:30 PM CDT
In force
57 min
Issued by
NWS Grand Forks, ND
Area
Whole counties

Counties Ransom County, ND, Richland 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

TimeReportWhereRemark
Jul 16, 11:53 AM CDTHail 2.75Ransom, ND
Jul 16, 12:10 PM CDTHail 2.75Richland, ND
Jul 16, 12:10 PM CDTThunderstorm Wind 0Richland, 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 nearest sounding before it

Aberdeen, SD (KHON), launched 12:00Z, 4.6 hours before the alert went out and 183 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, Aberdeen, SD at 12:00Z on 1986-07-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1381 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, Aberdeen, SD at 12:00Z on 1986-07-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 0 square meters per square second.19395878Sfc1 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
1381 J/kg
Mixed-layer CIN
-293 J/kg
Mixed-layer LCL
1263 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
0 m²/s²
0-3 km storm-relative helicity
125 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.8

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KFAR 161633
SVRFAR
NDC077-073-161730-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE FARGO ND
1133 AM CDT WED JUL 16 1986

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM 
WARNING EFFECTIVE UNTIL 1230 PM CDT FOR PEOPLE IN THE FOLLOWING 
COUNTIES OF

SOUTHEAST NORTH DAKOTA...NORTHERN RICHLAND AND EASTERN RANSOM

AT 1125 AM CDT...RADAR INDICATED A SEVERE THUNDERSTORM 45 MILES
SOUTHWEST OF FARGO NORTH DAKOTA OR JUST EAST OF THE TOWN OF
LISBON IN SOUTHEAST NORTH DAKOTA.  THIS THUNDERSTORM WAS MOVING
TO THE EAST AT 35 MILES AN HOUR.

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.

IF THREATENING WEATHER APPROACHES...YOU SHOULD GO TO A PLACE OF
SAFETY IMMEDIATELY.  REPORT ALL SEVERE WEATHER TO YOUR LOCAL LAW
ENFORCEMENT AGENCY AFTER THE STORM PASSES.

MB

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 16, 5:43 AM CDT, 5 hours 50 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE FARGO ND
535 AM CDT WED JUL 16 1986

...SEVERE THUNDERSTORM WATCH IN EFFECT FOR A LARGE PART OF CENTRAL
   NORTH DAKOTA UNTIL 7 AM CDT...

AT 530 AM AN ISOLATED THUNDERSTORM WITH VERY HEAVY RAIN WAS OVER
CENTRAL STEVENS COUNTY OF WEST CENTRAL MINNESOTA IN THE VICINITY OF
MORRIS. THIS THUNDERSTORM WAS MOVING NORTHEAST AT 25 MILES AN HOUR
AN SHOULD MOVE INTO DOUGLAS COUNTY OF WEST CENTRAL MINNESOTA NEAR
THE CITY OF ALEXANDRIA BY 630 AM. VERY HEAVY RAIN..GUSTY WINDS AND
SMALL HAIL MAY ACCOMPANY THIS STORM.

OTHER SCATTERED SHOWERS AND THUNDERSTORMS WERE OCCURRING OVER PARTS
OF CENTRAL AND SOUTHEAST NORTH DAKOTA..NORTHEAST SOUTH DAKOTA AND
WEST CENTRAL MINNESOTA.

ONE THUNDERSTORM WITH HEAVY RAIN WAS OVER DICKEY COUNTY OF SOUTHEAST
NORTH DAKOTA NEAR THE TOWN OF FULLERTON OR ABOUT 45 MILES SOUTH OF
JAMESTOWN NORTH DAKOTA. THIS THUNDERSTORM WAS MOVING NORTHEAST AND
SHOULD MtOVE INTO EASTERN LA MOURE COUNTY OF SOUTHEAST NORTH DAKOTA
AROUND THE TOWNS OF LA MOURE AND VERONA BY 630 AM.

THE GENERAL AREA OF SHOWERS AND THUNDERSTORMS WAS MOVING NORTHEAST
AT 20 TO 25 MILES AN HOUR.
SPIES
Special weather statement, Jul 16, 10:42 AM CDT, 51 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE FARGO ND
1035 AM CDT WED JUL 16 1986

...THUNDERSTORMS FIRE UP OVER SOUTHEAST NORTH DAKOTA...

AT 1026 AM CDT A THUNDERSTORM W

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 16, 12:31 PM CDTSevere Thunderstorm WarningFGFRichland59 min

Nearby

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

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; the sounding from the Mesonet's radiosonde archive.