Alert archive / North Dakota / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 36, NWS Grand Forks, ND
NWS Grand Forks, ND issued this severe thunderstorm warning at Jun 22, 1997, 8:02 PM CDT for Cass County, North Dakota. It was in force for 28 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 22, 1997, 8:02 PM CDT (01:02 UTC)
- Expired
- Jun 22, 1997, 8:30 PM CDT
- In force
- 28 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 01:04 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.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jun 22, 4:30 PM CDT | Tornado Watch | SPC | 7 hr |
The nearest sounding before it
Aberdeen, SD (KABR), launched 00:00Z, 1.0 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
- 1720 J/kg
- Mixed-layer CIN
- -221 J/kg
- Mixed-layer LCL
- 1224 m above ground
- 0-6 km bulk shear
- 52 kt
- 0-1 km storm-relative helicity
- 320 m²/s²
- 0-3 km storm-relative helicity
- 538 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 33.1
The text
As transmitted, in the capitals the NWS used until 2016.
667 WUUS1 KFAR 230103 RRA SVRFAR NDC017-230130- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND 802 PM CDT SUN JUN 22 1997 THE NATIONAL WEATHER SERVICE IN EASTERN ND/GRAND FORKS HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 830 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN SOUTHEAST NORTH DAKOTA ...NORTHERN CASS COUNTY AT 8 PM CDT RADAR INDICATED A SEVERE THUNDERSTORM 25 MILES NORTHEAST OF VALLEY CITY OR 6 MILES SOUTH OF PAGE NORTH DAKOTA. MOVEMENT WAS EAST AT 30 MPH. THE THUNDERSTORM WILL BE BETWEEN ERIE AND ARTHUR NORTH DAKOTA AROUND 830 PM CDT. REMEMBER SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING. HOPPES
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 22, 3:01 PM CDT, 5 hours 1 minute earlier.
Area forecast discussion, Jun 22, 3:01 PM CDT, 5 hours 1 minute before
FORECAST DISCUSSION FOR EASTERN NORTH DAKOTA AND NORTHWEST MINNESOTA NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND 300 PM CDT SUN JUN 22 1997 FIRST PERIOD DISCUSSION...MODEL FCST STRM MOVEMENT TO TURN FM E TO THE NE TDY AS FLO ALFT TURNS FM W TO SW. HOWEVER CURRENT STRMS IN SD HAVE BEEN TURNING TO THE RIGHT. STRMS XPCTD TO DEVELOP ALNG WM FNTL BNDRY IN NRN SD. MODELS MOV FNTL BNDRY SLOLY NWD OVRNT. SUSPECT STRMS WL CONT THE SAME TREND OF BEING RIGHT MOVERS ARND RING OF FIRE AS WM FNT MOVS NE. MODEL HAVE LOWEST LI`S IN CNTRL ND OVRNT. THINK STRMS WL FIRE UP IN S CNTRL ND THIS EVE AND MOV E/SE AND FIRE IN NE ND LATER TNGT. SHUD BE IN WM SECTOR TNGT WITH QUITE HI DWPTS. OVRNT LOWS SHUD BE ARND 70 IN FAR, VLLY CITY... UPR 60S IN GFK, CKN, FSE, TVF, DTL, PKD...MID 60S IN BJI, ROX ,BDE. HOPPES
In the hours before
Local storm report, Jun 22, 7:25 PM CDT, 37 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND 724 PM CDT SUN JUN 22 1997
TIME(CDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0720 PM 3-1/2 E OF VALLEY CITY ND 3/4 INCH HAIL
07/22/97 BARNESLocal storm report, Jun 22, 7:26 PM CDT, 36 minutes before
PRELIMINARY LOCAL STORM REPORT...CORRECTION FOR MONTH OF EVENT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
726 PM CDT SUN JUN 22 1997
TIME(CDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0720 PM 3-1/2 E OF VALLEY CITY ND 3/4 INCH HAIL
06/22/97 BARNESLocal storm report, Jun 22, 7:27 PM CDT, 35 minutes before
PRELIMINARY LOCAL STORM REPORT...CORRECTION FOR MONTH OF EVENT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
726 PM CDT SUN JUN 22 1997
TIME(CDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0720 PM 3-1/2 E OF VALLEY CITY ND 3/4 INCH HAIL
06/22/97 BARNESThe office that day
Everything else NWS Grand Forks, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 22, 7:05 PM CDT | Severe Thunderstorm Warning | FGF | Barnes | 25 min |
| Jun 22, 7:31 PM CDT | Severe Thunderstorm Warning | FGF | Barnes, Cass | 29 min |
| Jun 22, 8:26 PM CDT | Severe Thunderstorm Warning | FGF | Steele, Traill | 34 min |
| Jun 22, 8:33 PM CDT | Severe Thunderstorm Warning | FGF | Cass | 27 min |
| Jun 22, 9:49 PM CDT | Severe Thunderstorm Warning | FGF | Richland | 26 min |
| Jun 22, 10:12 PM CDT | Severe Thunderstorm Warning | FGF | Richland | 33 min |
| Jun 22, 11:59 PM CDT | Severe Thunderstorm Warning | FGF | Ramsey | 31 min |
| Jun 23, 12:56 AM CDT | Severe Thunderstorm Warning | FGF | Cass | 34 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.