Alert archive / Minnesota / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 31, NWS Grand Forks, ND

June 11, 2001Wilkin County, Minnesota

NWS Grand Forks, ND issued this severe thunderstorm warning at Jun 11, 2001, 9:06 AM CDT for Wilkin County, Minnesota. It was in force for 24 min. 1 report came from 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, with what was reported inside it.

The facts

Issued
Jun 11, 2001, 9:06 AM CDT (14:06 UTC)
Expired
Jun 11, 2001, 9:30 AM CDT
In force
24 min
Issued by
NWS Grand Forks, ND
Area
Whole counties; the outline is the Mesonet’s reconstruction

County Wilkin County, MN

The radar

The Fargo/Grand Forks radar (KMVX), 152 km from the middle of the area, began a volume at 14:07 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

TimeReportWhereRemark
Jun 11, 9:20 AM CDTHail 0.75Doran, 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

Aberdeen, SD (KABR), launched 12:00Z, 2.1 hours before the alert went out and 216 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, Aberdeen, SD at 12:00Z on 2001-06-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2628 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Aberdeen, SD at 12:00Z on 2001-06-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 432 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
2628 J/kg
Mixed-layer CIN
-211 J/kg
Mixed-layer LCL
1168 m above ground
0-6 km bulk shear
53 kt
0-1 km storm-relative helicity
432 m²/s²
0-3 km storm-relative helicity
444 m²/s²
Significant tornado parameter
0.0
Supercell composite
4.3

Open this sounding in Storm Lab

The text

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

000 
WUUS53 KFGF 111406
SVRFAR
MNC167-111430-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE EASTERN ND-GRAND FORKS
906 AM CDT MON JUN 11 2001

THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WILKIN COUNTY IN WEST CENTRAL MINNESOTA...

* UNTIL 930 AM CDT

* AT 902 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 9 MILES WEST OF DORAN...OR ABOUT 8 MILES SOUTH
  OF WAHPETON...MOVEMENT WAS TO THE NORTHEAST AT 30 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  DORAN AT 915 AM CDT...
  EVERDELL AT 925 AM CDT...

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

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 200 PM CDT MONDAY
AFTERNOON FOR NORTHWESTERN MINNESOTA AND EASTERN NORTH DAKOTA.

LAT...LON 4635 9658 4606 9651 4618 9632 4655 9634


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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 11, 2:50 AM CDT, 6 hours 16 minutes earlier.

Area forecast discussion, Jun 11, 2:50 AM CDT, 6 hours 16 minutes before
FORECAST DISCUSSION FOR EASTERN NORTH DAKOTA AND NORTHWEST MINNESOTA
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS
250 AM CDT MON JUN 11 2001

...FORECAST CHALLENGE TODAY WILL BE SVR WX AND HEAVY RAIN THREAT...

.CURRENT OBSERVATIONS...06Z SFC ANALYSIS SHOWING SFC LOW IN EXTREME
NW SD WITH WARM FRONT EXTENDING NORTHWARD THROUGH ND. COLD FRONT
NOW ENTERING EXTREME NW ND. IR AND RADAR IMAGERY SHOWING 2 LARGE
TSTM CLUSTERS IN NC AND SW ND. 5 MIN LIGHTNING STRIKES SHOWING
AMAZING OVER 800 CG STRIKES WITH THESE SYSTEMS. REFER TO LATEST SPC
SWOMCD FOR LATEST CONVECTIVE TRENDS.

.SHORT TERM...DYNAMIC SITUATION SETTING UP FOR TODAY INTO THE EARLY
EVENING. WENT WITH ETA SOLUTION FOR THIS FORECAST. STRONG H25 100+
KNOT JET MAX RIDING OVER THE CREST OF RIDGE THIS MORNING. STRONG
ISOTACH GRADIENT OF RIGHT ENTRANCE REGION JUST NORTH OF THE BORDER.
THIS IN CONJUNCTION WITH SFC WARM FRONTOGENESIS IS RESULTING IN GOOD
DYNAMIC DESTABILIZATION. ABUNDANT MOISTURE WILL BE PRESENT TODAY
WITH PWATS AROUND 1.5 INCHES. SFC AND H85 THERMODYNAMICS ARE ALSO
IMPRESSIVE. H85 THETA-E VALUES OVER 340K ACROSS SOUTHERN CWA.
THUS...GIVEN RECENT HEAVY RAINS IN SOUTHERN COUNTIES...FLASH FLOOD
WATCH STILL LOOK GOOD AND WILL KEEP IN PLACE. AGREE WITH MAIN POINTS
OF SPC SWODY1. TIMING OF FROPA SHOULD HAVE MOST OF THE CONVECTIVE
ACTIVITY OUT OF THE DVL AREA BY 18Z. WILL KEEP MENTION OF TSTMS IN
THE FAR SE INTO THE EARLY EVENING HOURS.

.MID TERM...TONIGHT THROUGH TUESDAY EVENING SHOULD PROVIDE A QUIET
RESPITE FROM THE SVR WX AS WEAK HIGH PRESSURE RIDGE INTO THE
NORTHERN PLAINS. A STRONG SFC LOW BUILDS INTO THE CENTRAL PLAINS FOR
EARLY WEDNESDAY WITH ANOTHER ROUND OF SIGNIFICANT PRECIPITATION
POSSIBLE. UPPER LEVEL DYNAMICS ARE ONCE AGAIN IMPRESSIVE FOR JUNE
WITH A STRONG COUPLED H25 JET WITH MAX UVV OVER THE DAKOTAS AGAIN IN
THE 06Z-12Z TIME FRAME WEDNESDAY.

.EXTENDED...NO CHANGES PLANNED ATTM.

.FGF...FLASH FLOOD WATCH TODAY FOR RANSOM...SARGENT...RICHLAND...
WILKIN...OTTERTAIL AND GRANT COUNTIES.

BRAMER

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 11, 5:18 AM CDTSevere Thunderstorm WarningFGFMarshall27 min
Jun 11, 9:33 AM CDTSevere Thunderstorm WarningFGFOtter Tail, Wilkin57 min
Jun 11, 10:15 AM CDTFlash Flood WarningFGFOtter Tail, Wilkin30 min
Jun 11, 10:15 AM CDTFlash Flood WarningFGFOtter Tail, Wilkin105 min
Jun 11, 10:29 AM CDTSevere Thunderstorm WarningFGFOtter Tail46 min
Jun 11, 11:01 AM CDTSevere Thunderstorm WarningFGFClay29 min
Jun 11, 11:16 AM CDTSevere Thunderstorm WarningFGFOtter Tail29 min
Jun 11, 11:29 AM CDTSevere Thunderstorm WarningFGFClay31 min
Jun 11, 11:39 AM CDTSevere Thunderstorm WarningFGFWilkin51 min
Jun 11, 11:52 AM CDTSevere Thunderstorm WarningFGFBecker53 min
Jun 11, 11:59 AM CDTSevere Thunderstorm WarningFGFClay46 min
Jun 11, 12:02 PM CDTFlash Flood WarningFGFOtter Tail, Wilkin6 hr
Jun 11, 12:13 PM CDTSevere Thunderstorm WarningFGFOtter Tail62 min
Jun 11, 12:47 PM CDTSevere Thunderstorm WarningFGFBecker, Hubbard58 min
Jun 11, 1:15 PM CDTSevere Thunderstorm WarningFGFOtter Tail60 min
Jun 11, 1:22 PM CDTSevere Thunderstorm WarningFGFOtter Tail, Wadena23 min
Jun 11, 2:15 PM CDTSevere Thunderstorm WarningFGFOtter Tail15 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.