Alert archive / North Dakota / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 29, NWS Grand Forks, ND

July 7, 1990Barnes County, LaMoure County, Ransom County, North Dakota

NWS Grand Forks, ND issued this severe thunderstorm warning at Jul 7, 1990, 11:15 PM CDT for Barnes County, LaMoure County, Ransom County, North Dakota. It was in force for 60 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 7, 1990, 11:15 PM CDT (04:15 UTC)
Expired: Jul 8, 1990, 12:15 AM CDT
In force: 60 min
Issued by: NWS Grand Forks, ND
Area: Whole counties

Counties Barnes County, ND, LaMoure County, ND, Ransom 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 7, 11:34 PM CDT	Hail 1.5	Barnes, 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 00:00Z, 4.3 hours before the alert went out and 192 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: 1810 J/kg
Mixed-layer CIN: -130 J/kg
Mixed-layer LCL: 2576 m above ground
0-6 km bulk shear: 15 kt
0-1 km storm-relative helicity: 33 m²/s²
0-3 km storm-relative helicity: 101 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.2

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KFAR 080421 COR
SVRFAR
NDC003-045-073-080515-

BULLETIN - IMMEDIATE BROADCAST REQUESTED...CORRECTION
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE FARGO ND
1115 PM CDT SAT JUL 7 1990

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM
WARNING EFFECTIVE UNTIL 1215 AM CDT FOR PEOPLE IN THE FOLLOWING
COUNTIES

   IN THE EAST CENTRAL PART OF NORTH DAKOTA
      SOUTHERN BARNES...

   IN THE SOUTHEAST PART OF NORTH DAKOTA
      NORTHEAST LA MOURE...NORTHWEST RANSOM...

AT 1110 PM CDT...RADAR INDICATED A SEVERE THUNDERSTORM 15 MILES
SOUTHEAST OF JAMESTOWN NORTH DAKOTA OR JUST EAST OF THE TOWN
OF MONTPELIER NORTH DAKOTA.  THIS THUNDERSTORM WAS MOVING TO THE
EAST AT 35 MILES AN HOUR.
AT 1105 PM CDT A COOP OBSERVER IN MONTPELIER NORTH DAKOTA
REPORTED WALNUT SIZED HAIL AND VERY HEAVY RAIN WITH THIS
THUNDERSTORM.

SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS IN EXCESS OF 55
MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN.
FOR YOUR PROTECTION...MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR
OF YOUR HOME OR BUSINESS.

REMEMBER...SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE
A TORNADO WITH LITTLE OR NO ADVANCE WARNING...SO BE ON THE LOOKOUT.
IF YOU SPOT A FUNNEL ORT A TORNADO YOU SHOULD SEEK SHELTER IN A
REINFORCED BUILDING OR IN AN INTERIOR ROOM AWAY FROM OUTSIDE WALLS.

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

Local storm report, Jul 7, 7:19 PM CDT, 3 hours 56 minutes before

STORM REPORTS
NATIONAL WEATHER SERVICE FARGO ND
715 PM CDT SAT JULY 7 1990

TIME(CDT) EVENT
500 PM    PUBLIC REPORT OF GOLFBALL SIZED HAIL FOR 5 MINUTES IN
          THE THE CITY OF COMORANT...IN BECKER COUNTY.  RELAYED BY
          KFGO RADIO IN FARGO.

648 PM    HUBBARD COUNTY S.O. REPORTED GOLFBALL SIZED HAIL IN THE
          CITY OF PARK RAPIDS.
EWENS

Local storm report, Jul 7, 9:58 PM CDT, 1 hour 17 minutes before

STORM REPORTS
NATIONAL WEATHER SERVICE FARGO ND
10 PM CDT SAT JULY 7 1990

TIME(CDT) EVENT
900 PM    COOP OBSERVER NEAR WHITMAN NORTH DAKOTA REPORTED 1/4 INCH
          HAIL.  COOP OBSERVER NEAR SOUTHHAM NORTH DAKOTA REPORTED
          WINDS OF 65 MPH.

916 PM    COOP OBSERVER 1 MILES EAST OF INKSTER NORTH DAKOTA REPORTED
          ZERO VISIBILITY IN RAIN...SMALL HAIL...AND WINDS OF 60 MPH.

956 PM    COOP OBSERVER 6 MILES NORTH OF EMERADO NORTH DAKOTA REPORTED
          HEAVY RAIN...SMALL HAIL...AND LIGHT WINDS.
MB

Special weather statement, Jul 7, 10:30 PM CDT, 45 minutes before

NDZ012-013-014-015-016-017-018-MNZ001-006-007-010-011-013- 080430-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE FARGO ND
1030 PM CDT SAT JUL 7 1990

AT 1025 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED 25 MILES WEST OF
JAMESTOWN NEAR MEDINA NORTH DAKOTA.  ANOTHER STRONG THUNDERSTORM WAS
LOCATED 30 MILES SOUTHWEST OF GRAND FORKS NEAR NORTHWOOD NORTH DAKOTA.
THESE THUNDERSTORMS WERE MOVING EAST AT 35 MILES AN HOUR.  THE STORM
WEST OF JAMESTOWN WILL PASS THROUGH THE JAMESTOWN AREA BY 1130 PM CDT...
AND THE STORM SOUTHWEST OF GRAND FORKS WILL BE LOCATED NEAR THE RED
RIVER 10 MILES SOUTH OF GRAND FORKS.

OTHERWISE...SCATTERED SHOWERS AND THUNDERSTORMS WERE OVER NORTHEAST
...CENTRAL AND SOUTHEAST NORTH DAKOTA...NORTHEAST SOUTH DAKOTA AND
WERE MOVING INTO NORTHWEST MINNESOTA.  STRONG STORMS WERE OVER CENTRAL
MINNESOTA IN THE WADENA...STAPLES...45 MILES NORTHEAST OF
ALEXANDRIA.

THUNDERSTORMS ARE EXPECTED TO INTENSIFY OVER EASTERN NORTH DAKOTA AS
AN UPPER LEVEL DISTURBANCE MOVES INTO THE AREA FROM THE WEST.
ADDITIONALLY...THE ATMOSPHERE REMAINS VERY MOIST AND UNSTABLE WITH
THE POTENTIAL FOR SEVERE WEATHER HIGH.  STAY TUNED TO RADIO AND T.V.
AS WELL AS NOAA WEATH#ER RADIO FOR LATER STATEMENTS AND POSSIBLE
WARNINGS.
EWEWNS

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 7, 9:06 PM CDT	Severe Thunderstorm Warning	FGF	Grand Forks, Nelson, Walsh	54 min

Nearby

Severe Thunderstorm Warnings in North Dakota, 1990 Every severe thunderstorm warning in 1990

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.