Alert archive / North Dakota / Severe Thunderstorm Warnings in 1987

Severe Thunderstorm Warning 21, NWS Bismarck, ND

July 19, 1987Emmons County, North Dakota

NWS Bismarck, ND issued this severe thunderstorm warning at Jul 19, 1987, 11:48 PM CDT for Emmons County, North Dakota. It was in force for 72 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 19, 1987, 11:48 PM CDT (04:48 UTC)
Expired: Jul 20, 1987, 1:00 AM CDT
In force: 72 min
Issued by: NWS Bismarck, ND
Area: Whole counties

County Emmons 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 20, 12:30 AM CDT	Hail 1.75	Emmons, 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

Bismarck Municip, ND (KBIS), launched 00:00Z, 4.8 hours before the alert went out and 64 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: 90 J/kg
Mixed-layer CIN: -185 J/kg
Mixed-layer LCL: 1852 m above ground
0-6 km bulk shear: 52 kt
0-1 km storm-relative helicity: -8 m²/s²
0-3 km storm-relative helicity: 77 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KBIS 200448
SVRBIS
NDC029-200545-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BISMARCK ND
1148 PM CDT SUN JUL 19 1987

THE NATIONAL WEATHER SERVICE HAS ISSUED A SE~VERE THUNDERSTORM 
WARNING EFFECTIVE UNTIL 1245 AM CDT FOR PEOPLE IN THE FOLLOWING 
COUNTY OF

SOUTH CENTRAL NORTH DAKOTA...EMMONS

THIS WARNING CLUDES THE TOWNS OF LINTON AND STRASBURG.
.
.

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 19, 7:25 PM CDT, 4 hours 23 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BISMARCK ND
615 PM MDT SUN JUL 19 1987

...STRONG THUNDERSTORMS DEVELOPING OVER SOUTHWEST NORTH DAKOTA...

AT 610 PM MDT RADAR INDICATED A SMALL GROUP OF INTENSIFYING
THUNDERSTORMS OVER THE SOUTHWESTERN CORNER OF NORTH DAKOTA.

THE STRONGEST THUNDERSTORM WAS LOCATED OVER THE SOUTHWEST CORNER OF
THE STATE...25 MILES SOUTHWEST OF BOWMAN...OR 65 MILES SOUTHWEST
OF DICKINSON. THE THUNDERSTORM WAS MOVING NORTHEAST AT 20 MPH AND
WILL LIKELY PASS NEAR THE TOWNS BOWMAN AND SCRANTON BEFORE 7 PM MDT.
VERY HEAVY RAIN...SMALL HAIL...GUSTY WINDS UP TO 50 MPH...AND
DANGEROUS LIGHTNING CAN BE EXPECTED WITH THE PASSAGE OF THIS
THUNDERSTORM.

ANOTHER THUNDERSTORM...WITH HEAVY RAIN...WAS LOCATED 25 MILES SOUTH
OF DICKINSON AND WILL PASS NEAR THE TOWNS OF REGENT AND MOTT.

IF THREATENING WEATHER APPROACHES TAKE COVER IMMEDIATELY.

LEBLANG

Local storm report, Jul 19, 10:15 PM CDT, 1 hour 33 minutes before

STORM REPORTS
NATIONAL WEATHER SERVICE BISMARCK ND
1015 PM CDT SUN JUL 19 1987

TIME    ZONE    EVENT...LOCATION...REMARKS

805 PM  CDT     PEA SIZE HAIL NEAR AMIDON IN SLOPE COUNTY.

820 PM  CDT     MCARBLE SIZE HAIL...VERY HEAVY RAIN 8 MILES WEST OF
                HETTINGER IN ADAMS COUNTY.

907 PM          GOLFBALL SIZE HAIL  .75 INCH RAIN FELL IN 15 MIN
                AT REGENT IN HETTINGER COUNTY.

TURNER

Special weather statement, Jul 19, 10:16 PM CDT, 1 hour 32 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WILLISTON ND
915 PM MDT SUN JUL 19 1987

...STRONG THUNDERSTORMS DEVELOPING IN DUNN AND MOUNTRAIL COUNTIES
IN WESTCENTRAL NORTH DAKOTA...

AT 905 PM MDT WILLISTON RADAR INDICATED A LINE OF THUNDERSTORMS
DEVELOPING FROM MANNING IN DUNN COUNTY TO 10 MILES SOUTH OF PARSHALL
IN MOUNTRAIL COUNTY. THE STRONGEST THUNDERSTORM WAS LOCATED SOUTH
OF PARSHALL.

PERSONS IN THE VICINITY OF THESE STORMS SHOULDD BE PREPARED FOR GUSTY
WINDS...SMALL HAIL...DANGEROUS LIGHTNING STRIKES AND BRIEF HEAVY RAIN.
IF THREATENING WEATHER APPROACHES BE PREPARED TO SEEK SAFE SHELTER.

THE STORMS WERE MOVING TO THE NORTHEAST AT 25 MPH.

NEWKIRK

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 19, 8:17 PM CDT	Severe Thunderstorm Warning	BIS	Adams	58 min
Jul 19, 9:22 PM CDT	Tornado Warning	BIS	Adams, Sioux	38 min
Jul 19, 9:58 PM CDT	Tornado Warning	BIS	Sioux	32 min
Jul 19, 10:02 PM CDT	Severe Thunderstorm Warning	BIS	Grant	58 min
Jul 19, 10:34 PM CDT	Tornado Warning	BIS	Adams	26 min
Jul 19, 10:46 PM CDT	Severe Thunderstorm Warning	BIS	Sioux	59 min
Jul 19, 11:52 PM CDT	Severe Thunderstorm Warning	BIS	Sioux	68 min
Jul 20, 12:58 AM CDT	Severe Thunderstorm Warning	BIS	Emmons, Logan, McIntosh	62 min
Jul 20, 1:25 AM CDT	Severe Thunderstorm Warning	BIS	Bowman	65 min
Jul 20, 2:31 AM CDT	Tornado Warning	BIS	Hettinger	29 min
Jul 20, 2:46 AM CDT	Severe Thunderstorm Warning	BIS	Hettinger	29 min
Jul 20, 3:15 AM CDT	Severe Thunderstorm Warning	BIS	Grant, Hettinger, Slope	60 min
Jul 20, 3:15 AM CDT	Severe Thunderstorm Warning	BIS	Bowman	60 min
Jul 20, 3:53 AM CDT	Severe Thunderstorm Warning	BIS	Morton	37 min
Jul 20, 4:17 AM CDT	Severe Thunderstorm Warning	BIS	Adams, Hettinger	58 min
Jul 20, 5:07 AM CDT	Severe Thunderstorm Warning	BIS	Grant	68 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; the sounding from the Mesonet's radiosonde archive.