Alert archive / North Dakota / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 21, NWS Grand Forks, ND

June 19, 1997Barnes County, North Dakota

NWS Grand Forks, ND issued this severe thunderstorm warning at Jun 19, 1997, 4:57 PM CDT for Barnes County, North Dakota. It was in force for 33 min. 2 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
Jun 19, 1997, 4:57 PM CDT (21:57 UTC)
Expired
Jun 19, 1997, 5:30 PM CDT
In force
33 min
Issued by
NWS Grand Forks, ND
Area
Whole counties

County Barnes County, ND

The radar

The Fargo/Grand Forks radar (KMVX), 87 km from the middle of the area, began a volume at 21:57 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.

What was reported inside it

TimeReportWhereRemark
Jun 19, 5:15 PM CDTHail 0.75Litchville, ND
Jun 19, 5:25 PM CDTHail 0.75Litchville, 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.

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

Bismarck Municip, ND (KBIS), launched 12:00Z, 10.0 hours before the alert went out and 201 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, Bismarck Municip, ND at 12:00Z on 1997-06-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 14 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, Bismarck Municip, ND at 12:00Z on 1997-06-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 0 square meters per square second.1939Sfc1 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
14 J/kg
Mixed-layer CIN
-233 J/kg
Mixed-layer LCL
1521 m above ground
0-6 km bulk shear
0 kt
0-1 km storm-relative helicity
0 m²/s²
0-3 km storm-relative helicity
0 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KFAR 192155 RRA
SVRFAR
NDC003-192230-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
457 PM CDT THU JUN 19 1997
 
THE NATIONAL WEATHER SERVICE IN EASTERN ND/GRAND FORKS HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  530 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN SOUTHEAST NORTH DAKOTA
 
   ...BARNES COUNTY
 
AT 452 PM CDT...RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS FROM 5
MILES WEST OF VALLEY CITY TO 25 MILES SOUTHWEST OF VALLEY CITY NEAR
LITCHVILLE NORTH DAKOTA. THESE STORMS WERE MOVING NORTHEAST AT 35 MILES
AN HOUR.
 
 
REMEMBER SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO
PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING.

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 19, 3:41 PM CDTSevere Thunderstorm WarningFGFGrand Forks34 min
Jun 19, 4:02 PM CDTSevere Thunderstorm WarningFGFTowner28 min
Jun 19, 4:14 PM CDTSevere Thunderstorm WarningFGFBarnes31 min
Jun 19, 4:18 PM CDTSevere Thunderstorm WarningFGFGrand Forks27 min
Jun 19, 4:29 PM CDTSevere Thunderstorm WarningFGFTowner16 min
Jun 19, 4:52 PM CDTSevere Thunderstorm WarningFGFSteele38 min
Jun 19, 5:44 PM CDTSevere Thunderstorm WarningFGFSteele31 min
Jun 19, 5:52 PM CDTSevere Thunderstorm WarningFGFBarnes38 min
Jun 19, 6:54 PM CDTSevere Thunderstorm WarningFGFCass36 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.