Alert archive / Minnesota / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 22, NWS Grand Forks, ND
NWS Grand Forks, ND issued this severe thunderstorm warning at Jun 19, 1997, 5:14 PM CDT for Polk County, Minnesota. It was in force for 31 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, 5:14 PM CDT (22:14 UTC)
- Expired
- Jun 19, 1997, 5:45 PM CDT
- In force
- 31 min
- Issued by
- NWS Grand Forks, ND
- Area
- Whole counties
County Polk County, MN
The radar
The Fargo/Grand Forks radar (KMVX), 74 km from the middle of the area, began a volume at 22:16 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, 5:39 PM CDT | Hail 0.75 | Euclid, MN |
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 nearest sounding before it
International Fa, MN (KINL), launched 12:00Z, 10.2 hours before the alert went out and 246 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1473 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- -4 m²/s²
- 0-3 km storm-relative helicity
- 37 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KFAR 192215 RRA SVRFAR MNC119-192245- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND 514 PM CDT THU JUN 19 1997 THE NATIONAL WEATHER SERVICE IN EASTERN ND/GRAND FORKS HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 545 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN NORTHWEST MINNESOTA ...WESTERN POLK COUNTY AT 511 PM CDT...DOPPLER RADAR CONTINUED TO INDICATE A SEVERE THUNDERSTORM NEAR THE TOWNS OF SHERACK AND EUCLID OR 10 MILES NORTHEAST OF GRAND FORKS. THIS STORM IS MOVING EAST AT 20 MPH AND WILL EFFECT THE TOWNS OF SHERACK AND EUCLID. A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA. REMEMBER SEVERE T&HUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING. REMAIN CALM BUT BE ALERT TO RAPIDLY CHANGING WEATHER CONDITIONS. GSF
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, 2 hours 10 minutes earlier.
Area forecast discussion, Jun 19, 3:04 PM CDT, 2 hours 10 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, 4 hours 14 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, 4 hours 13 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, 45 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, 44 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. &
The office that day
Everything else NWS Grand Forks, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 19, 4:47 PM CDT | Severe Thunderstorm Warning | FGF | Polk | 28 min |
| Jun 19, 5:26 PM CDT | Tornado Warning | FGF | Polk | 34 min |
| Jun 19, 6:04 PM CDT | Tornado Warning | FGF | Polk | 11 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.