Alert archive / North Dakota / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 25, NWS Grand Forks, ND
NWS Grand Forks, ND issued this severe thunderstorm warning at Jun 19, 1997, 6:54 PM CDT for Cass County, North Dakota. It was in force for 36 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
- Jun 19, 1997, 6:54 PM CDT (23:54 UTC)
- Expired
- Jun 19, 1997, 7:30 PM CDT
- In force
- 36 min
- Issued by
- NWS Grand Forks, ND
- Area
- Whole counties
County Cass County, ND
The radar
The Fargo/Grand Forks radar (KMVX), 66 km from the middle of the area, began a volume at 23:57 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
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 19, 7:25 PM CDT | Thunderstorm Wind | West Fargo, ND | Gusty winds blew down a billboard-sized video screen at the Red River Valley Fair. |
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.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jun 19, 3:45 PM CDT | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Aberdeen, SD (KABR), launched 12:00Z, 11.9 hours before the alert went out and 243 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.
- Mixed-layer CAPE
- 130 J/kg
- Mixed-layer CIN
- -90 J/kg
- Mixed-layer LCL
- 572 m above ground
- 0-6 km bulk shear
- 42 kt
- 0-1 km storm-relative helicity
- 21 m²/s²
- 0-3 km storm-relative helicity
- 45 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KFAR 192353 RRA SVRFAR NDC017-200030- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND 654 PM CDT THU JUN 19 1997 THE NATIONAL WEATHER SERVICE IN EASTERN ND/GRAND FORKS HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 730 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN SOUTHEAST NORTH DAKOTA ...CASS COUNTY AT 650 PM CDT...RADAR INDICATED A SEVERE THUNDERSTORM 27 MILES WEST OF FARGO OR 10 MILES EAST OF TOWER CITY MOVING NORTHEAST AT 35 MILES AN HOUR. TOWNS IN THE PATH OF THIS STORM INCLUDE BUFFALO...ABSARAKA AND AMENIA. PERSONS IN THE PATH OF THIS STORM SHOULD TAKE COVER NOW. REMEMBER SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING.
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, 3 hours 50 minutes earlier.
Area forecast discussion, Jun 19, 3:04 PM CDT, 3 hours 50 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, 1:00 PM CDT, 5 hours 54 minutes before
MNZ001>009-013>017-022>024-027>032-040-NDZ006>008-014>016-024- 026>030-038-039-049-052-053-201200- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND 100 PM CDT THU JUN 19 1997 ...THERE IS A RISK FOR SEVERE WEATHER ACROSS EASTERN NORTH DAKOTA AND NORTHWEST MINNESOTA TODAY... SEVERE WEATHER IS POSSIBLE TODAY FOR ALL OF EASTERN NORTH DAKOTA AND IN MINNESOTA WEST OF A LINE FROM ROSEAU TO 30 MILES EAST OF FERGUS FALLS. IN MINNESOTA CITIES INCLUDED ARE ROSEAU...THIEF RIVER FALLS...DETROIT LAKES AND FERGUS FALLS. LARGE HAIL AND DAMAGING WINDS ARE THE MAIN SEVERE WEATHER THREAT. THUNDERSTORMS SHOULD MOVE THE AREA AFTER 4 PM AND WILL MOVE ACROSS THE REGION THROUGH MIDNIGHT. THUNDERSTORMS OVER NORTHWEST MINNESOTA WILL BECOME MORE NUMEROUS OVER THE RED RIVER VALLEY THIS AFTERNOON. THUNDERSTORMS WILL ALSO BECOME MORE NUMEROUS IN NORTHWEST MINNESOTA THIS AFTERNOON THROUGH EARLY THIS EVENING. THE HAZARDOUS WEATHER OUTLOOK IS ISSUED BY THE NATIONAL WEATHER SERVICE IN GRAND FORKS DAILY BY 7 AM AND MAY BE UPDATED IN THE EARLY AFTERNOON IF CONDITIONS WARRENT. HOPPES
Special weather statement, Jun 19, 1:01 PM CDT, 5 hours 53 minutes before
MNZ001>009-013>017-022>024-027>032-040-NDZ006>008-014>016-024- 026>030-038-039-049-052-053-201200- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND 100 PM CDT THU JUN 19 1997 ...THERE IS A RISK FOR SEVERE WEATHER ACROSS EASTERN NORTH DAKOTA AND NORTHWEST MINNESOTA TODAY... SEVERE WEATHER IS POSSIBLE TODAY FOR ALL OF EASTERN NORTH DAKOTA AND IN MINNESOTA WEST OF A LINE FROM ROSEAU TO 30 MILES EAST OF FERGUS FALLS. IN MINNESOTA CITIES INCLUDED ARE ROSEAU...THIEF RIVER FALLS...DETROIT LAKES AND FERGUS FALLS. LARGE HAIL AND DAMAGING WINDS ARE THE MAIN SEVERE WEATHER THREAT. THUNDERSTORMS SHOULD MOVE THE AREA AFTER 4 PM AND WILL MOVE ACROSS THE REGION THROUGH MIDNIGHT. THUNDERSTORMS OVER NORTHWEST MINNESOTA WILL BECOME MORE NUMEROUS OVER THE RED RIVER VALLEY THIS AFTERNOON. THUNDERSTORMS WILL ALSO BECOME MORE NUMEROUS IN NORTHWEST MINNESOTA THIS AFTERNOON THROUGH EARLY THIS EVENING. THE HAZARDOUS WEATHER OUTLOOK IS ISSUED BY THE NATIONAL WEATHER SERVICE IN GRAND FORKS DAILY BY 7 AM AND MAY BE UPDATED IN THE EARLY AFTERNOON IF CONDITIONS WARRENT. HOPPES
Special weather statement, Jun 19, 4:29 PM CDT, 2 hours 25 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, 2 hours 24 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, 34 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
GODONLocal storm report, Jun 19, 6:23 PM CDT, 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 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
GODONThe office that day
Everything else NWS Grand Forks, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 19, 3:41 PM CDT | Severe Thunderstorm Warning | FGF | Grand Forks | 34 min |
| Jun 19, 4:02 PM CDT | Severe Thunderstorm Warning | FGF | Towner | 28 min |
| Jun 19, 4:14 PM CDT | Severe Thunderstorm Warning | FGF | Barnes | 31 min |
| Jun 19, 4:18 PM CDT | Severe Thunderstorm Warning | FGF | Grand Forks | 27 min |
| Jun 19, 4:29 PM CDT | Severe Thunderstorm Warning | FGF | Towner | 16 min |
| Jun 19, 4:52 PM CDT | Severe Thunderstorm Warning | FGF | Steele | 38 min |
| Jun 19, 4:57 PM CDT | Severe Thunderstorm Warning | FGF | Barnes | 33 min |
| Jun 19, 5:44 PM CDT | Severe Thunderstorm Warning | FGF | Steele | 31 min |
| Jun 19, 5:52 PM CDT | Severe Thunderstorm Warning | FGF | Barnes | 38 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.