Alert archive / Minnesota / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 112, NWS Grand Forks, ND

July 1, 1997Lake of the Woods County, Minnesota

NWS Grand Forks, ND issued this severe thunderstorm warning at Jul 1, 1997, 3:50 PM CDT for Lake of the Woods County, Minnesota. It was in force for 25 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: Jul 1, 1997, 3:50 PM CDT (20:50 UTC)
Expired: Jul 1, 1997, 4:15 PM CDT
In force: 25 min
Issued by: NWS Grand Forks, ND
Area: Whole counties

County Lake of the Woods County, MN

The radar

The Fargo/Grand Forks radar (KMVX), 227 km from the middle of the area, began a volume at 20:53 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
Jul 1, 4:10 PM CDT	Hail 0.75	Carp, 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

Minneapolis, MN (KMPX), launched 12:00Z, 8.8 hours before the alert went out and 447 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1531 J/kg
Mixed-layer CIN: -61 J/kg
Mixed-layer LCL: 923 m above ground
0-6 km bulk shear: 22 kt
0-1 km storm-relative helicity: 41 m²/s²
0-3 km storm-relative helicity: 63 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.7

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KFAR 012049 RRA
SVRFAR
MNC077-012115-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
350 PM CDT TUE JUL 1 1997
 
THE NATIONAL WEATHER SERVICE IN EASTERN ND/GRAND FORKS HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  415 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN NORTH CENTRAL MINNESOTA
 
   ...LAKE OF THE WOODS COUNTY
 
AT 348 PM A SEVERE THUNDERSTORM WAS 10 MILES SOUTH OF BAUDETTE MINNESOTA
MOVING SLOWLY NORTH...AROUND 10 MILES AN HOUR. IF YOU LIVE IN THE
BAUDETTE AREA SEEK SHELTER NOW.
 
WHEN THUNDERSTORMS ARE OCCURRING...MOVE INTO A STRONG BUILDING.
DON'T USE TELEPHONES OR ELECTRICAL APPLIANCES AND STAY AWAY FROM
WINDOWS.
EWENS

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 Jul 1, 2:15 PM CDT, 1 hour 35 minutes earlier.

Area forecast discussion, Jul 1, 2:15 PM CDT, 1 hour 35 minutes before

FORECAST DISCUSSION FOR EASTERN NORTH DAKOTA AND NORTHWEST MINNESOTA
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
215 PM CDT TUE JUL 1 1997

WL KEEP SHORT WITH CONVECTION FIRING ACRS AREA.  FRONTAL BOUNDARY /THE
ONE I EARLIER SAID WD REMAIN STATIONARY/ NOW SLOWLY MOVING NORTH WITH
STG STHRLY FLOW AHEAD OF LOW. FRONT NOW XTNDS ROUGHLY FM JMS...TO
GFK...TO ROX...WITH GFK DWPT SHOOTING UP FM 59 TO 65 IN ONE HOUR.  KMVX
88D NOW SHOWING SOME STG CONVECTION FIRING UP OVER SOUTHEAST ND...JUST
ALONG AND S OF THIS FNT. MODELS IN FAIRLY GOOD AGREEMENT WITH
LOCATION/SPEED OF SYSTEM...BRINGING SFC LOW IN GENERAL VCNTY OF FSE/DTL
BY 12Z. GIVEN TRACK OF SYSTEM...STILL THINK HVY PCPN LIKELY ACRS CWA
WITH NRN HALF OF CWA RECEIVING MAJORITY OF PCPN FROM OVERRUNNING AND SRN
HALF OF CWA RCVG MORE FM STG CONVECTION. REGARDLESS OF HOW PCPN
FALLS...STILL EXPCT HIGH PCPN AMTS SO WL KEEP FLASH FLOOD WATCH IN
PLACE THRU TONIGHT ACRS ENTR CWA.

SUGGESTIONS FOR ND...KEEP FLASH FLOOD WATCH FOR ALL ND CWA.
  FOR DVL...WD INCLUDE PEMBINA AND WALSH IN THIS GROUP...FEEL NO MENTION
OF SVR NEEDED.  WINDY WITH SHOWERS AND TSTMS.  VERY HEAVY RAIN AND
FLOODING PSBL.  GUSTY NORTHEAST WIND 15-30.  LOW MID-UPR 50S.
  FOR GFK...WINDY WITH SHOWERS AND THUNDERSTORMS...SOME MAY BE SEVERE
THIS EVENING.  VERY HEAVY RAIN AND FLOODING PSBL.  NORTHEAST WIND
INCREASING TO 15 TO 30 MPH.  LOW UPPR 50S-LOW 60S.
  FOR FAR...SAME AS GFK EXCPT WND BCMG NORTHEAST AND INCRG TO 15-30 MPH.
LOW 60-65.

SUGGESTIONS FOR MN...KEEP FLASH FLOOD WATCH FOR ALL MN CWA.
  BREAK OFF NRN PTN OF KITTSON...ROSEAU...L.O.W...MARSHALL.  SHOWERS
AND TSTMS /NO SVR MENTION/.  VERY HEAVY RAIN POSSIBLE.  WIND NORTHEAST
10 TO 20.  LOWS 55-60.
  FOR RMDR...SHOWERS AND THUNDERSTORMS...SOME TSTMS PSBLY SEVERE THIS
EVENING.  WIND EAST-SE 10-20...LOWS 60-65.

STRAGER

In the hours before

Local storm report, Jul 1, 11:00 AM CDT, 4 hours 50 minutes before

PRELIMINARY LOCAL STORM REPORT...DELAYED REPORTS
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
925 AM CDT TUE JUL 01 1997

TIME(CDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0612 PM    12S ROSEAU                MN   TORNADO
06/27/97   ROSEAU

0830 PM    11 NE GRYGLA              MN   WIND DAMAGE
06/27/97   BELTRAMI                       LARGE TREES DOWN.

0905 PM    7 SW WASKISH              MN   WIND DAMAGE
06/27/97   BELTRAMI                       NUMEROUS LARGE TREES DOWN.

0930 PM    30 N PARK RAPIDS          MN   0.75 INCH HAIL
06/27/97   HUBBARD

1010 PM    ANETA                     ND   1.00 INCH HAIL
06/27/97   NELSON

1015 PM    GONVICK                   MN   1.00 INCH HAIL
06/27/97   CLEARWATER

1055 PM    5 N BAGLEY                MN   0.75 INCH HAIL
06/27/97   CLEARWATER

1045 PM    10 N GULLY                MN   0.75 INCH HAIL
06/27/97   PENNINGTON

1123 PM    3 N GULLY                 MN   0.75 INCH HAIL
06/27/97   POLK

1220 AM    1 S BUXTON                ND   0.75 INCH HAIL
06/28/97   TRAILL

1245 AM    1 W BEMIDJI               MN   WIND DAMAGE
06/28/97   BELTRAMI                       LARGE TREES DOWN.

1245 AM    1 1/2 S NAYTAHWAUSH       MN   1.75 INCH HAIL
06/28/97   MAHNOMEN

0110 AM    1 S NAYTAHWAUSH           MN   1.25 INCH HAIL
06/28/97   MAHNOMEN

0130 AM    1 S NAYTAHWAUSH           MN   1.25 INCH HAIL
6/28/97    MAHNOMEN

0130 AM    3 E SHARON                ND   1.75 INCH HAIL
06/28/87   STEELE

0135 AM    13S BEMIDJI               MN   WIND DAMAGE
06/28/97   HUBBARD                        **2 INJ**
                                          AUTOMOBILE FLIPPED OVER.

0200 AM    33 N PARK RAPIDS          MN   WIND DAMAGE
06/28/97   HUBBARD                        FISH HOUSE BLOWN OVER.

0230 AM    6 NE BEAULIEU             MN   0.75 INCH HAIL
06/28/97   MAHNOMEN

0245 AM    ISLAND LAKE               MN   0.75 INCH HAIL
06/28/97   MAHNOMEN

0300 AM    6 NE BEAULIEU             MN   FLOODING
06/28/97   MAHNOMEN                       4.10 INCHES OF RAIN CAUSED
                                          FLOODED ROADS.

0330 AM    LANGBY                    MN   FLOODING
06/28/97   POLK

0330 AM    EBRO                      MN   FLOODING
06/28/97   CLEARWATER                     HWY 2 CLOSED.

0835 AM    6 S FORT RANSOM           ND   TORNADO
06/28/97   RANSOM

0900 AM    4S DETROIT LAKES          MN   0.75 INCH HAIL
06/28/97   BECKER

1030 AM    MILNER                    ND   0.75 INCH HAIL
06/28/97   SARGENT

1125 AM    5 SE HANKINSON            ND   TORNADO
06/28/97   RICHLAND

 BELLES

Local storm report, Jul 1, 11:48 AM CDT, 4 hours 2 minutes before

PRELIMINARY LOCAL STORM REPORT...DELAYED REPORTS
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
1150 AM CDT TUE JUL 01 1997

TIME(CDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0850 PM    VERGAS                    MN   1.00 INCH HAIL
06/28/97   OTTER TAIL

0930 PM    VERGAS                    MN   1.00 INCH HAIL
06/28/97   OTTER TAIL

 BELLES

Local storm report, Jul 1, 11:50 AM CDT, 4 hours before

PRELIMINARY LOCAL STORM REPORT...DELAYED REPORTS
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
1150 AM CDT TUE JUL 01 1997

TIME(CDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0850 PM    VERGAS                    MN   1.00 INCH HAIL
06/28/97   OTTER TAIL

0930 PM    VERGAS                    MN   1.00 INCH HAIL
06/28/97   OTTER TAIL

 BELLES

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 1, 8:35 AM CDT	Severe Thunderstorm Warning	FGF	Red Lake	25 min
Jul 1, 3:40 PM CDT	Flash Flood Warning	FGF	Polk	2 hr
Jul 1, 4:44 PM CDT	Severe Thunderstorm Warning	FGF	Lake of the Woods	46 min
Jul 1, 5:37 PM CDT	Tornado Warning	FGF	Polk	38 min
Jul 1, 6:16 PM CDT	Tornado Warning	FGF	Polk	14 min
Jul 1, 6:45 PM CDT	Tornado Warning	FGF	Polk	30 min
Jul 1, 6:58 PM CDT	Severe Thunderstorm Warning	FGF	Red Lake	17 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 1997 Every 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.