Alert archive / Minnesota / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 364, NWS Grand Forks, ND

August 26, 2001Clay County, Norman County, Minnesota

NWS Grand Forks, ND issued this severe thunderstorm warning at Aug 26, 2001, 9:18 AM CDT for Clay County, Norman County, Minnesota. It was in force for 42 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: Aug 26, 2001, 9:18 AM CDT (14:18 UTC)
Expired: Aug 26, 2001, 10:00 AM CDT
In force: 42 min
Issued by: NWS Grand Forks, ND
Area: Whole counties; the outline is the Mesonet’s reconstruction

Counties Clay County, MN, Norman County, MN

The radar

The Fargo/Grand Forks radar (KMVX), 63 km from the middle of the area, began a volume at 14:19 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 nearest sounding before it

International Fa, MN (KINL), launched 12:00Z, 2.3 hours before the alert went out and 287 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 2826 m above ground
0-6 km bulk shear: 51 kt
0-1 km storm-relative helicity: -24 m²/s²
0-3 km storm-relative helicity: 71 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

000 
WUUS53 KFGF 261418
SVRFAR
SVRFAR
MNC027-107-261500-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE EASTERN ND-GRAND FORKS
918 AM CDT SUN AUG 26 2001

THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...

  NORTHWESTERN CLAY COUNTY IN NORTHWEST MINNESOTA AND
  NORMAN COUNTY IN NORTHWEST MINNESOTA.

* UNTIL 1000 AM CDT.

* AT 914 AM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 4 MILES SOUTHEAST OF PERLEY...OR ABOUT 18 MILES
  NORTH OF FARGO...MOVEMENT WAS TO THE NORTHEAST AT 25 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...

  BORUP AT 940 AM...
  ADA AT 950 AM AND
  HADLER AT 955 AM.

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

LAT...LON 4720 9682 4702 9673 4733 9619 4749 9645


$$
08
DK

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 Aug 26, 8:35 AM CDT, 43 minutes earlier.

Area forecast discussion, Aug 26, 8:35 AM CDT, 43 minutes before

FORECAST DISCUSSION FOR EASTERN NORTH DAKOTA AND NORTHWEST MINNESOTA
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
835 AM CDT SUN AUG 26 2001

...FORECAST PROBLEM IS ONGOING TSTMS AND FLOODING POTENTIAL...

DEW POINT GRADIENT REMAINS SET UP ACROSS SOUTHEASTERN ND INTO
WESTERN MN WITH ELEVATED THUNDERSTORMS CONTINUING TO TRACK EASTWARD
NORTH OF THIS SFC MOISTURE BOUNDARY. THE THUNDERSTORMS ARE EXPECTED
TO BECOME SURFACE BASED AS THE DAY CONTINUES. TRAINING STORMS ARE
POSSIBLE THIS AFTERNOON OVER GROUND THAT HAS BECOME SATURATED OVER
THE LAST TWO NIGHTS. THUS...WILL ISSUE A FLASH FLOOD WATCH FOR THIS
AREA AND ADJACENT AREAS INTO MN WHERE TSTMS PRODUCING MODERATE TO
HEAVY RAINFALL ATTM.

WILL ALSO STRENGTHEN WORDING FOR THUNDERSTORMS IN OTHER ZONE GROUPS
TO THE NORTH OF THE WATCH AREA.

.FGF...FLASH FLOOD WATCH TODAY AND TONIGHT FOR SOUTHEASTERN ND
       AND PORTIONS OF NORTHWESTERN MN INCLUDING
       NDZ024-028>030-038-039-049-052-053 AND
       MNZ002-003-027>032-040

BRAMER

In the hours before

Special weather statement, Aug 26, 6:50 AM CDT, 2 hours 28 minutes before

MNZ001>009-013>017-022>024-027>032-040-NDZ006>008-014>016-024-
026>030-038-039-049-052>054-261345-

SPECIAL WEATHER STATEMENT
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
650 AM CDT SUN AUG 26 2001

...SLIGHT RISK FOR SEVERE WEATHER IN PARTS OF EASTERN NORTH
DAKOTA...NORTHWEST AND WEST CENTRAL MINNESOTA TODAY...

SYNOPSIS...AN AREA OF LOW PRESSURE...CURRENTLY CENTERED BETWEEN
BISMARCK AND MOBRIDGE...WILL MOVE EAST THROUGH THE REGION TODAY...
PROVIDING THE FOCUS FOR THUNDERSTORM DEVELOPMENT...SOME OF WHICH
COULD BE SEVERE.

AREA OF CONCERN...SEVERE THUNDERSTORMS ARE POSSIBLE TODAY EAST OF A
HALLOCK TO GRAND FORKS TO ECKELSON LINE.

TIME...PRIMARILY IN EASTERN NORTH DAKOTA THIS MORNING. THEN...SLOWLY
SHIFT INTO NORTHWEST AND WEST CENTRAL MINNESOTA BY THIS AFTERNOON.

TYPE OF HAZARD...THE MAIN THREATS ARE LARGE HAIL AND VERY HEAVY
RAIN...WITH ISOLATED TORNADOES ALSO POSSIBLE.

NG

Local storm report, Aug 26, 9:17 AM CDT, 1 minute before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE EASTERN NORTH DAKOTA/GRAND FORKS
917 AM CDT SUN AUG 26 2001

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

0510 AM    9 SW SANBORN              ND   .75 INCH HAIL
08/26/01   BARNES

0645 AM    8 S VALLEY CITY           ND   .75 INCH HAIL
08/26/01   BARNES

0700 AM    ANSELM                    ND   WIND DAMAGE
08/26/01   RANSOM                         LARGE TREE LIMBS DOWN

0715 AM    5 N ORISKA                ND   .75 INCH HAIL
08/26/01   BARNES

0810 AM    5 NE HOPE                 ND   .75 INCH HAIL
08/26/01   STEELE

0845 AM    5 W WYNDMERE              ND   .75 INCH HAIL
08/26/01   RICHLAND

0905 AM    BARNEY                    ND   .75 INCH HAIL
08/26/01   RICHLAND

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 26, 9:14 AM CDT	Severe Thunderstorm Warning	FGF	Wilkin	46 min
Aug 26, 4:56 PM CDT	Severe Thunderstorm Warning	FGF	Marshall	49 min
Aug 26, 5:50 PM CDT	Severe Thunderstorm Warning	FGF	Pennington	40 min
Aug 26, 6:42 PM CDT	Severe Thunderstorm Warning	FGF	Red Lake	33 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2001 Every 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.