Alert archive / Minnesota / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 152, NWS Grand Forks, ND

July 18, 2001Beltrami County, Lake of the Woods County, Minnesota

NWS Grand Forks, ND issued this severe thunderstorm warning at Jul 18, 2001, 8:50 PM CDT for Beltrami County, Lake of the Woods County, Minnesota. It was in force for 55 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties.

The facts

Issued
Jul 18, 2001, 8:50 PM CDT (01:50 UTC)
Expired
Jul 18, 2001, 9:45 PM CDT
In force
55 min
Issued by
NWS Grand Forks, ND
Area
Whole counties; the outline is the Mesonet’s reconstruction

Counties Beltrami County, MN, Lake of the Woods County, MN

The radar

The Fargo/Grand Forks radar (KMVX), 211 km from the middle of the area, began a volume at 01:49 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.

IssuedProductOfficeLasted
Jul 18, 6:30 PM CDTTornado WatchSPC4 hr

The nearest sounding before it

International Fa, MN (KINL), launched 00:00Z, 1.8 hours before the alert went out and 122 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-pSkew-T log-p diagram, International Fa, MN at 00:00Z on 2001-07-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2275 joules per kilogram.LCLEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, International Fa, MN at 00:00Z on 2001-07-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 68 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
2275 J/kg
Mixed-layer CIN
-5 J/kg
Mixed-layer LCL
1506 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
68 m²/s²
0-3 km storm-relative helicity
202 m²/s²
Significant tornado parameter
0.6
Supercell composite
9.1

Open this sounding in Storm Lab

The text

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

000 
WUUS53 KFGF 190152
SVRFAR

MNC007-077-190245-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE EASTERN ND-GRAND FORKS
850 PM CDT WED JUL 18 2001

THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...

  NORTHWESTERN BELTRAMI COUNTY IN NORTH CENTRAL MINNESOTA AND
  SOUTHERN LAKE OF THE WOODS COUNTY IN NORTH CENTRAL MINNESOTA.

* UNTIL 945 PM CDT.

* AT 844 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  THE LEADING EDGE OF SEVERE THUNDERSTORMS ALONG A LINE EXTENDING
  FROM 33 MILES EAST OF ROSEAU TO 24 MILES SOUTH OF ROSEAU...MOVEMENT
  WAS TO THE EAST AT 20 MPH.

* VERY LARGE HAIL AND DAMAGING WINDS ARE POSSIBLE WITH THIS STORM.

* SEVERE THUNDERSTORMS WILL BE NEAR...

  FAUNCE AT 910 PM CDT AND
  CARP AT 930 PM CDT
  FOURTOWN AT 932 PM CDT.

REMEMBER SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE
TORNADOES WITH LITTLE OR NO ADVANCE WARNING.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT WEDNESDAY EVENING
FOR NORTHWESTERN MINNESOTA AND EASTERN NORTH DAKOTA. A TORNADO WATCH
ALSO REMAINS IN EFFECT UNTIL 1000 PM CDT WEDNESDAY EVENING FOR
NORTHWESTERN MINNESOTA.

LAT...LON 4872 9502 4846 9549 4833 9499 4860 9425


$$
BRAZZELL

NNNN

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 18, 8:29 PM CDT, 21 minutes earlier.

Area forecast discussion, Jul 18, 8:29 PM CDT, 21 minutes before
FORECAST DISCUSSION FOR EASTERN NORTH DAKOTA AND NORTHWEST MINNESOTA
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
829 PM CDT WED JUL 18 2001

...DUE TO ONGOING SVR WEATHER WL BE BRIEF...

MSAS AND SFC ANALYSIS SHOWING BEST MOIST CONVERGENCE EXTENDING FROM
E OF GFK TO NR DVL ATTM. SFC WARM FRONT CONT TO MOVE N THRU SE ND
AND INTO NW MN PROVIDING FOCUS FOR ONGOING CONVECTION. ALTHOUGH BEST
FOCUS E OF DVL AREA ATTM...TSTMS CONT JUST E OF THIS AREA AND AM
HESITANT TO DROP WATCH THERE BEFORE EXPIRATION TIME. THUS WL KEEP
TORNADO WATCHES GOING UNTIL 3Z THIS AREA.

FFA LOCATIONS LOOK REASONABLE...AND WL CONT AS PREVIOUSLY FORECAST.
ALL SAID...NO BIG CHANGES NEEDED ATTM. WL SEND EVENING UPDATE AFTER
3Z.

.FGF...FLASH FLOOD WATCH UNTIL MIDNIGHT ALONG AND NORTH OF A DVL-GFK
LINE...FOR REST OF FA OVERNIGHT.

RJT

In the hours before

Local storm report, Jul 18, 2:59 PM CDT, 5 hours 51 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE EASTERN NORTH DAKOTA/GRAND FORKS
259 PM CDT WED JUL 18 2001

...ADDTIONAL REPORT...

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

0810 PM    7 N 4 E BARNEY                ND   TORNADO
07/17/01   RICHLAND                           TOUCHDOWN REPORTED BY
                                              FARMER.  70 FOOT
                                              COTTONWOOD TREES
                                              UPROOTED AND TWISTED IN
                                              DIFFERENT DIRECTIONS.
                                              AWNINGS OF HOME AND A
                                              BARN WAS DESTROYED.

NNNN
Local storm report, Jul 18, 3:12 PM CDT, 5 hours 38 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE EASTERN NORTH DAKOTA/GRAND FORKS
418 AM CDT WED JUL 18 2001

...UPDATED TIMES FROM EARLIER REPORTS...

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

0337 PM    10 N BEMIDJI              MN   .75 INCH HAIL
07/17/01   BELTRAMI

0350 PM    9 N BEMIDJI               MN   1 INCH HAIL
07/17/01   BELTRAMI                       AMATUER RADIO REPORT

0350 PM    7 W FINLEY                ND   2 INCH HAIL
07/17/01   GRIGGS

0354 PM    9 N BEMIDJI               MN   .75 INCH HAIL
07/17/01   BELTRAMI                       AMATUER RADIO REPORT

0400 PM    7 N BEMIDJI               MN   1 INCH HAIL
07/17/01   BELTRAMI

0404 PM    4 E COOPERSTOWN           ND   1 INCH HAIL
07/17/01   GRIGGS

0405 PM    10 N BEMIDJI              MN   1 INCH HAIL
07/17/01   BELTRAMI                       AMATUER RADIO REPORT

0405 PM    5 W FINLEY                ND   1.75 INCH HAIL
07/17/01   STEELE

0405 PM    5 W FINLEY                ND   1.75 INCH HAIL
07/17/01   STEELE

0425 PM    3 N BEMIDJI               MN   1.5 INCH HAIL
07/17/01   BELTRAMI

0428 PM    3 S FINLEY                ND   1 INCH HAIL
07/17/01   STEELE

0430 PM    10 NW FOUR TOWN           MN   1.75 INCH HAIL
07/17/01   BELTRAMI

0430 PM    11 NW FOUR TOWN           MN   1.25 INCH HAIL
07/17/01   BELTRAMI

0435 PM    5 N HOPE                  ND   1.75 INCH HAIL
07/17/01   STEELE

0435 PM    3 S SALOL                 MN   1 INCH HAIL
07/17/01   ROSEAU

0435 PM    2 NW BEMIDJI              MN   1.5 INCH HAIL
07/17/01   BELTRAMI

0440 PM    15 N GRYGLA               MN   .75 INCH HAIL
07/17/01   ROSEAU

0453 PM    4 W KELLIHER              MN   .75 INCH HAIL
07/17/01   BELTRAMI

0459 PM    15 E BEMIDJI              MN   2.75 INCH HAIL
07/17/01   BELTRAMI

0500 PM    7 SW FINLEY               ND   2 INCH HAIL
07/17/01   STEELE                         GROUND WAS WHITE; HAIL
                                          FELL FOR OVER 15 MINUTES

0510 PM    9 E COOPERSTOWN           ND   .75 INCH HAIL
07/17/01   GRIGGS

0521 PM    BEMIDJI                   MN   1.75 INCH HAIL
07/17/01   BELTRAMI                       AMATUER RADIO REPORT

0550 PM    GRACETON                  MN   .75 INCH HAIL
07/17/01   LAKE OF THE WOODS

0550 PM    GRACETON                  MN   .75 INCH HAIL
07/17/01   LAKE OF THE WOODS

0600 PM    LYNCHBURG                 ND   2.75 INCH HAIL
07/17/01   CASS

0615 PM    3 N CHAFFEE               ND   4.50 INCH HAIL
07/17/01   CASS                           BROKEN WINDOWS

0620 PM    3 NE CHAFFEE              ND   3 INCH HAIL
07/17/01   CASS

0624 PM    3 W REDBY                 MN   TORNADO
07/17/01   BELTRAMI

0624 PM    SAUM                      MN   TORNADO
07/17/01   BELTRAMI                       AMATUER RADIO REPORT

0631 PM    6 N BEMIDJI               MN   1 INCH HAIL
07/17/01   BELTRAMI

0636 PM    4 N BEMIDJI               MN   .75 INCH HAIL
07/17/01   BELTRAMI                       REPORT FROM THE NORTH
                                          SHORE OF LAKE BEMIDJI FROM
                                          AMATUER RADIO

0638 PM    BEMIDJI                   MN   1 INCH HAIL
07/17/01   BELTRAMI

0643 PM    6 N BEMIDJI               MN   1 INCH HAIL
07/17/01   BELTRAMI

0650 PM    9 N BEMIDJI               MN   1.5 INCH HAIL
07/17/01   BELTRAMI

0652 PM    2 S TURTLE RIVER          MN   1 INCH HAIL
07/17/01   BELTRAMI

0656 PM    3 SW FUNKLEY              MN   TORNADO
07/17/01   BELTRAMI

0658 PM    5 NW FUNKLEY              MN   TORNADO
07/17/01   BELTRAMI

0700 PM    7 E BEMIDJI               MN   .88 INCH HAIL
07/17/01   BELTRAMI

0700 PM    FUNKLEY                   MN   TORNADO
07/17/01   BELTRAMI

0705 PM    1 E FUNKLEY               MN   TORNADO
07/17/01   BELTRAMI

0710 PM    7 N BEMIDJI               MN   1 INCH HAIL
07/17/01   BELTRAMI

0727 PM    8 SE LEONARD              ND   .75 INCH HAIL
07/17/01   RICHLAND

0727 PM    8 SE LEONARD              ND   70 MPH TSTM GUST
07/17/01   RICHLAND

0728 PM    HINES                     MN   .75 INCH HAIL
07/17/01   BELTRAMI

0731 PM    TENSTRIKE                 MN   .75 INCH HAIL
07/17/01   BELTRAMI

0740 PM    BROCKET                   ND   .75 INCH HAIL
07/17/01   RAMSEY

0744 PM    OYLEN                     MN   1.75 INCH HAIL
07/17/01   WADENA

0745 PM    14 E BEMIDJI              MN   1 INCH HAIL
07/17/01   BELTRAMI

0747 PM    PONEMAH                   MN   1.75 INCH HAIL
07/17/01   BELTRAMI

0751 PM    ROOSEVELT                 MN   1 INCH HAIL
07/17/01   ROSEAU

0755 PM    1 E ROOSEVELT             MN   .75 INCH HAIL
07/17/01   LAKE OF THE WOODS

0800 PM    1 E ROOSEVELT             MN   .75 INCH HAIL
07/17/01   LAKE OF THE WOODS

0810 PM    8 N BARNEY                ND   1 INCH HAIL
07/17/01   RICHLAND

0810 PM    8 N BARNEY                ND   WIND DAMAGE
07/17/01   RICHLAND                       BARN AND MACHINE SHED
                                          KNOCKED OVER...RADIO
                                          TOWERS AND TREES ALSO
                                          BLOWN DOWN.

0805 PM    MOORETON                  ND   65 MPH TSTM GUST
07/17/01   RICHLAND

0820 PM    MOORETON                  ND   79 MPH TSTM GUST
07/17/01   RICHLAND

0838 PM    10 N PARK RAPIDS          MN   .88 INCH HAIL
07/17/01   HUBBARD

0838 PM    2 S FINGAL                ND   2 INCH HAIL
07/17/01   BARNES

0846 PM    10 NE PARK RAPIDS         MN   1.75 INCH HAIL
07/17/01   HUBBARD

0854 PM    1 N ROTHSAY               MN   62 MPH TSTM GUST
07/17/01   WILKIN

0855 PM    7 SW ALICE                ND   1.75 INCH HAIL
07/17/01   CASS

0855 PM    3 SE MOORETON             ND   1.75 INCH HAIL
07/17/01   RICHLAND

0903 PM    FERGUS FALLS              MN   65 MPH TSTM GUST
07/17/01   OTTER TAIL

0915 PM    SHELDON                   ND   .75 INCH HAIL
07/17/01   RANSOM

0955 PM    5 SW LISBON               ND   1.5 INCH HAIL
07/17/01   RANSOM

1007 PM    PARKERS PRAIRIE           MN   .75 INCH HAIL
07/17/01   OTTER TAIL

1010 PM    6 S LISBON                ND   1.75 INCH HAIL
07/17/01   RANSOM

1015 PM    7 S LISBON                ND   1.75 INCH HAIL
07/17/01   RANSOM                

1100 PM    5 E MOORETON              ND   1 INCH HAIL
07/17/01   RICHLAND
Local storm report, Jul 18, 3:17 PM CDT, 5 hours 33 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE EASTERN NORTH DAKOTA/GRAND FORKS
317 PM CDT WED JUL 18 2001

...LATE REPORT...

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

0800 PM    WALCOTT                   ND   WIND DAMAGE
07/17/01   RICHLAND                       ROOF OF WALCOTT FIRE
                                          STATION BLOWN OFF.
                                          MANY TREES UPROOTED.

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 18, 7:04 PM CDTSevere Thunderstorm WarningFGFKittson41 min
Jul 18, 7:08 PM CDTFlash Flood WarningFGFKittson3 hr
Jul 18, 7:23 PM CDTSevere Thunderstorm WarningFGFLake of the Woods52 min
Jul 18, 7:36 PM CDTTornado WarningFGFLake of the Woods39 min
Jul 18, 7:45 PM CDTSevere Thunderstorm WarningFGFKittson45 min
Jul 18, 7:54 PM CDTSevere Thunderstorm WarningFGFRoseau66 min
Jul 18, 8:09 PM CDTFlash Flood WarningFGFLake of the Woods, Roseau2 hr
Jul 18, 8:44 PM CDTTornado WarningFGFMarshall46 min
Jul 18, 9:01 PM CDTSevere Thunderstorm WarningFGFRoseau29 min
Jul 18, 9:43 PM CDTSevere Thunderstorm WarningFGFLake of the Woods47 min
Jul 18, 9:51 PM CDTSevere Thunderstorm WarningFGFPolk39 min
Jul 18, 10:00 PM CDTSevere Thunderstorm WarningFGFBeltrami45 min
Jul 18, 10:14 PM CDTFlash Flood WarningFGFLake of the Woods, Roseau3 hr
Jul 18, 10:32 PM CDTSevere Thunderstorm WarningFGFPolk28 min
Jul 18, 10:37 PM CDTSevere Thunderstorm WarningFGFMarshall38 min
Jul 18, 11:04 PM CDTSevere Thunderstorm WarningFGFBeltrami41 min
Jul 18, 11:11 PM CDTSevere Thunderstorm WarningFGFPennington49 min
Jul 18, 11:18 PM CDTTornado WarningFGFPennington, Red Lake27 min
Jul 18, 11:42 PM CDTTornado WarningFGFRed Lake33 min
Jul 19, 12:14 AM CDTTornado WarningFGFPolk31 min
Jul 19, 12:27 AM CDTFlash Flood WarningFGFMarshall, Polk2 hr
Jul 19, 12:54 AM CDTSevere Thunderstorm WarningFGFNorman66 min
Jul 19, 1:09 AM CDTSevere Thunderstorm WarningFGFPolk66 min
Jul 19, 1:28 AM CDTSevere Thunderstorm WarningFGFClay47 min
Jul 19, 1:59 AM CDTSevere Thunderstorm WarningFGFMarshall46 min
Jul 19, 2:05 AM CDTSevere Thunderstorm WarningFGFMahnomen, Norman40 min
Jul 19, 2:15 AM CDTSevere Thunderstorm WarningFGFClay30 min
Jul 19, 2:28 AM CDTSevere Thunderstorm WarningFGFBecker47 min
Jul 19, 2:52 AM CDTSevere Thunderstorm WarningFGFBeltrami, Clearwater, Hubbard38 min
Jul 19, 3:12 AM CDTSevere Thunderstorm WarningFGFBecker63 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2001Every severe thunderstorm warning in 2001

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.