Alert archive / Minnesota / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 31, NWS Grand Forks, ND
NWS Grand Forks, ND issued this severe thunderstorm warning at Jun 19, 1997, 10:21 PM CDT for Otter Tail County, Minnesota. It was in force for 39 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, 10:21 PM CDT (03:21 UTC)
- Expired
- Jun 19, 1997, 11:00 PM CDT
- In force
- 39 min
- Issued by
- NWS Grand Forks, ND
- Area
- Whole counties
County Otter Tail County, MN
The radar
The Fargo/Grand Forks radar (KMVX), 175 km from the middle of the area, began a volume at 03:21 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, 10:40 PM CDT | Thunderstorm Wind 50 | Battle Lake, MN | High wind downed tree limbs and tossed boats around. |
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, 10:00 PM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
The nearest sounding before it
Minneapolis, MN (KMPX), launched 00:00Z, 3.4 hours before the alert went out and 239 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
- 528 J/kg
- Mixed-layer CIN
- -166 J/kg
- Mixed-layer LCL
- 702 m above ground
- 0-6 km bulk shear
- 59 kt
- 0-1 km storm-relative helicity
- 200 m²/s²
- 0-3 km storm-relative helicity
- 313 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 6.1
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KFAR 200320 RRA SVRFAR MNC111-200400- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND 1021 PM CDT THU JUN 19 1997 THE NATIONAL WEATHER SERVICE IN EASTERN ND/GRAND FORKS HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1100 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN WEST CENTRAL MINNESOTA ...SOUTHERN OTTER TAIL COUNTY AT 1020 PM...RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS AT THE OTTER TAIL AND WILKIN COUNTY LINES NEAR FOXHOME OR 5 MILES WEST OF FERGUS FALLS. THE STORMS ARE MOVING EAST AT 30 MPH. THESE STORM WILL REACH FERGUS FALLS AROUND 1030 PM AND PRODUCE WINDS IN EXCESS OF 55 MPH. REMEMBER SEVERE THUND0ERSTORMS 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, 8:53 PM CDT, 1 hour 28 minutes earlier.
Area forecast discussion, Jun 19, 8:53 PM CDT, 1 hour 28 minutes before
FORECAST DISCUSSION FOR EASTERN NORTH DAKOTA AND NORTHWEST MINNESOTA NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND 850 PM CDT THU JUN 19 1997 SVR WX IS FORECAST CHALLENGE TONIGHT. TORNADO WATCH REMAINS IN EFFECT FOR MOST OF CWFA. SFC COLD FRONT IS JUST CROSSING ND BORDER INTO MN. HOWEVER...MOST OF SVR ACTIVITY IS CONCENTRATED AT THIS POINT IN SE ND ALONG OUTFLOW BOUNDARY. LATEST ADAP CHARTS CONTINUE TO SHOW GOOD MOISTURE CONVERGENCE...THE LOWEST LI'S AND NO CAP ACROSS THIS AREA. ALTHOUGH SE ND AND WC MN ARE IN BEST LOCATION FOR SVR...WILL NEED TO CONTINUE TO MONITOR FOR PULSE SVR FARTHER NORTH ALONG FRONT AS WELL. HAVE ALREADY UPDATED ZONE SETS EARLIER THIS EVENING FOR SVR WX AND WILL NOT SEND UPDATE AT THIS TIME. WILL UPDATE LATER AFTER TOR WATCHES EXPIRE AND AS SVR THREAT PASSES. NG
In the hours before
Special weather statement, Jun 19, 4:29 PM CDT, 5 hours 52 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, 5 hours 51 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, 4 hours 1 minute 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, 3 hours 58 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
GODONSpecial weather statement, Jun 19, 6:57 PM CDT, 3 hours 24 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, 3 hours 23 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.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 19, 7:54 PM CDT | Severe Thunderstorm Warning | FGF | Polk | 36 min |
Nearby
Severe Thunderstorm Warnings in Minnesota, 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.