Alert archive / North Dakota / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 28, NWS Grand Forks, ND

June 19, 1997Ransom County, North Dakota

NWS Grand Forks, ND issued this severe thunderstorm warning at Jun 19, 1997, 8:51 PM CDT for Ransom County, North Dakota. It was in force for 24 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jun 19, 1997, 8:51 PM CDT (01:51 UTC)
Expired
Jun 19, 1997, 9:15 PM CDT
In force
24 min
Issued by
NWS Grand Forks, ND
Area
Whole counties

County Ransom County, ND

The radar

The Fargo/Grand Forks radar (KMVX), 122 km from the middle of the area, began a volume at 01:53 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Jun 19, 3:45 PM CDTTornado WatchSPC6 hr

The nearest sounding before it

Aberdeen, SD (KABR), launched 00:00Z, 1.9 hours before the alert went out and 182 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 00:00Z on 1997-06-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 941 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 00:00Z on 1997-06-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 3 square meters per square second.1939587897117Sfc1 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
941 J/kg
Mixed-layer CIN
-5 J/kg
Mixed-layer LCL
1569 m above ground
0-6 km bulk shear
57 kt
0-1 km storm-relative helicity
3 m²/s²
0-3 km storm-relative helicity
140 m²/s²
Significant tornado parameter
0.1
Supercell composite
0.7

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KFAR 200149 RRA
SVRFAR
NDC073-200215-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
851 PM CDT THU JUN 19 1997
 
THE NATIONAL WEATHER SERVICE IN EASTERN ND/GRAND FORKS HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  915 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN SOUTHEAST NORTH DAKOTA
 
   ...RANSOM COUNTY
 
AT 845 PM...A SEVERE THUNDERSTORM WAS LOCATED 15 MILES EAST OF LISBON OR
NEAR MCLEOD. THIS STORM WAS MOVING EAST AT 20 MPH.
 
REMEMBER SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO
PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING.
 
SCHUMACHER

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.

NWS Grand Forks, ND wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 19, 3:04 PM CDT, 5 hours 47 minutes earlier.

Area forecast discussion, Jun 19, 3:04 PM CDT, 5 hours 47 minutes before
FORECAST DISCUSSION FOR EASTERN NORTH DAKOTA AND NORTHWEST MINNESOTA
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
304 PM CDT THU JUN 19 1997

FIRST PERIOD DISCUSSION...GRIDDED DATA SUGGEST CONVECTIVE
INHIBITION FAIRLY STRONG ACRS SRN SD AND SRN MN BUT IS ALSO
WHERE CAPES ARE THE HIEST.  MODEL CAPES OFF OF GRIDDED DATA
RUNNING ARND 1500-1800 J/KG.  ADAP CAP STRENGTH WEAK ACRS THE ERN
DAKS AND WRN MN. CAPS ARE STRNGR FARTHER S WHICH WOULD BE
XPCTD ON RFQ OF JET.  SATELLITE SHOWS ENHANCED CU LINE IN THE
WRN PART OF CWA WHICH MAY BE TROF LINE. COULD SEE DEVELOPMENT
ALNG THIS LINE. THINK MOST OF PRECIP SHUD MOV OUT OF AREA BY
MIDNITE. MOS TEMPS LOOK GOOD FOR LOW TNGT. TEMPS SHUD BE IN
THE THE MID 50 IN DVL...UPR 50S IN GFK, FAR, HCO, CKN, FSE,
TVF, ROX, BDE, BJI...ARND 60 IN PKD, FFM.

HOPPES

In the hours before

Special weather statement, Jun 19, 4:29 PM CDT, 4 hours 22 minutes before
NDZ003-192200-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
429 PM CDT THU JUN 19 1997

...SEVERE THUNDERSTORM WARNING IN EFFECT UNTIL 445 PM CDT FOR BARNES
COUNTY OF SOUTHEAST NORTH DAKOTA...

AT 425 PM CDT RADAR INDICATED A SEVERE THUNDERSTORM NEAR ROGERS OR 15
MILES NORTHWEST OF VALLEY CITY MOVING NORTHEAST AT 35 MILES AN HOUR.
THIS STORM PRODUCED 3/4 INCH HAIL NEAR ROGERS.  PERSONS NEAR LAKE
ASHTABULA SHOULD TAKE SHELTER IMMEDIATELY.

REMEMBER SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO
PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING.

&
Special weather statement, Jun 19, 4:30 PM CDT, 4 hours 21 minutes before
NDZ003-192200-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
429 PM CDT THU JUN 19 1997

...SEVERE THUNDERSTORM WARNING IN EFFECT UNTIL 445 PM CDT FOR BARNES
COUNTY OF SOUTHEAST NORTH DAKOTA...

AT 425 PM CDT RADAR INDICATED A SEVERE THUNDERSTORM NEAR ROGERS OR 15
MILES NORTHWEST OF VALLEY CITY MOVING NORTHEAST AT 35 MILES AN HOUR.
THIS STORM PRODUCED 3/4 INCH HAIL NEAR ROGERS.  PERSONS NEAR LAKE
ASHTABULA SHOULDb TAKE SHELTER IMMEDIATELY.

REMEMBER SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO
PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING.

&
Local storm report, Jun 19, 6:20 PM CDT, 2 hours 31 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
620 PM CDT THU JUN 19 1997

TIME(CDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0409 PM    10 NW SANBORN             ND   0.75 INCH HAIL
06/19/97   BARNES

0410 PM    GRAND FORKS AIR BASE      ND   65 KNOT WIND
06/19/97   GRAND FORKS

0420 PM    2 W ROGERS                ND   0.75 INCH HAIL
06/19/97   BARNES

0430 PM    PERTH                     ND   0.75 INCH HAIL
06/19/97   TOWNER

0435 PM    1 N 1 E PERTH             ND   0.75 INCH HAIL
06/19/97   TOWNER

0450 PM    5W HOPE                   ND   0.75 INCH HAIL
06/19/97   STEELE

0500 PM    6.5 W HOPE                ND   0.75 INCH HAIL
06/19/97   STEELE

0539 PM    1 W EUCLID                MN   0.75 INCH HAIL
06/19/97   POLK

GODON
Local storm report, Jun 19, 6:23 PM CDT, 2 hours 28 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
620 PM CDT THU JUN 19 1997

TIME(CDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0409 PM    10 NW SANBORN             ND   0.75 INCH HAIL
06/19/97   BARNES

0410 PM    GRAND FORKS AIR BASE      ND   65 KNOT WIND
06/19/97   GRAND FORKS

0420 PM    2 W ROGERS                ND   0.75 INCH HAIL
06/19/97   BARNES

0430 PM    PERTH                     ND   0.75 INCH HAIL
06/19/97   TOWNER

0435 PM    1 N 1 E PERTH             ND   0.75 INCH HAIL
06/19/97   TOWNER

0450 PM    5W HOPE                   ND   0.75 INCH HAINL
06/19/97   STEELE

0500 PM    6.5 W HOPE                ND   0.75 INCH HAIL
06/19/97   STEELE

0539 PM    1 W EUCLID                MN   0.75 INCH HAIL
06/19/97   POLK

GODON
Special weather statement, Jun 19, 6:57 PM CDT, 1 hour 54 minutes before
NDZ006>008-014>016-024-026>030-038-039-049-052-053-200100-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
657 PM CDT THU JUN 19 1997

...TORNADO WATCH NO LONGER IN EFFECT FOR PARTS OF NORTHEAST AND EAST
CENTRAL NORTH DAKOTA...
...TORNADO WATCH REMAINS IN EFFECT UNTIL 10 PM CDT FOR EAST CENTRAL AND
SOUTHEASTERN NORTH DAKOTA...

THE TORNADO WATCH IS NO LONGER IN EFFECT WEST OF A GRAND FORKS TO HOPE
TO VALLEY CITY LINE.  THUNDERSTORMS REMAIN POSSIBLE THIS EVENING...BUT
THE SEVERE WEATHER SHOULD BE EAST OF THE AREA.

THE COUNTIES WHICH REMAIN IN THE TORNADO WATCH UNTIL 10 PM CDT ARE AS
FOLLOWS:  TRAILL...CASS...RANSOM...RICHLAND AND SARGENT.

NG
Special weather statement, Jun 19, 6:58 PM CDT, 1 hour 53 minutes before
NDZ006>008-014>016-024-026>030-038-039-049-052-053-200100-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
657 PM CDT THU JUN 19 1997

...TORNADO WATCH NO LONGER IN EFFECT FOR PARTS OF NORTHEAST AND EAST
CENTRAL NORTH DAKOTA...
...TORNADO WATCH REMAINS IN EFFECT UNTIL 10 PM CDT FOR EAST CENTRAL AND
SOUTHEASTERN NORTH DAKOTA...

THE TORNADO WATCH IS NO LONGER IN EFFECT WEST OF A GRAND FORKS TO HOPE
TO VALLEY CITY LINE.  THUNDERSTORMS REMAIN POSSIBLE THIS EVENING...BUT
THE SEVERE WEATHER SHOULD BE EAST OF THE AREA.

THE COUNTIES WHICH REMAIN IN THE TORNADO WATCH UNTIL 10 PM CDT ARE AS
FOLLOWS:  TRAILL...CASS...RANSOM...RICHLAND AND SARGENT.

NG

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 19, 8:08 PM CDTSevere Thunderstorm WarningFGFRansom37 min
Jun 19, 9:03 PM CDTSevere Thunderstorm WarningFGFRichland27 min
Jun 19, 9:30 PM CDTSevere Thunderstorm WarningFGFRichland30 min

Nearby

Severe Thunderstorm Warnings in North Dakota, 1997Every severe thunderstorm warning in 1997

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.