Alert archive / Minnesota / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 24, NWS Grand Forks, ND

June 8, 2001Becker County, Otter Tail County, Minnesota

NWS Grand Forks, ND issued this severe thunderstorm warning at Jun 8, 2001, 7:40 PM CDT for Becker County, Otter Tail County, Minnesota. It was in force for 35 min. 2 reports 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 8, 2001, 7:40 PM CDT (00:40 UTC)
Expired
Jun 8, 2001, 8:15 PM CDT
In force
35 min
Issued by
NWS Grand Forks, ND
Area
Whole counties; the outline is the Mesonet’s reconstruction

Counties Becker County, MN, Otter Tail County, MN

The radar

The Fargo/Grand Forks radar (KMVX), 144 km from the middle of the area, began a volume at 00:40 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 8, 7:55 PM CDTThunderstorm WindFrazee, MNLarge tree branches were blown down.
Jun 8, 7:55 PM CDTHail 1Dent, 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 00:00Z, 0.7 hours before the alert went out and 271 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, Minneapolis, MN at 00:00Z on 2001-06-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Minneapolis, MN at 00:00Z on 2001-06-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 46 square meters per square second.19395878Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2108 m above ground
0-6 km bulk shear
39 kt
0-1 km storm-relative helicity
46 m²/s²
0-3 km storm-relative helicity
97 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 090041
SVRFAR

MNC005-111-090115-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE EASTERN ND-GRAND FORKS
740 PM CDT FRI JUN 8 2001

THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHERN BECKER COUNTY IN NORTHWEST MINNESOTA...
  NORTH CENTRAL OTTER TAIL COUNTY IN WEST CENTRAL MINNESOTA...

* UNTIL 815 PM CDT

* AT 735 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 3 MILES NORTHWEST OF DUNVILLA...OR ABOUT 13
  MILES SOUTHWEST OF DETROIT LAKES...MOVEMENT WAS TO THE EAST AT 40
  MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  SHOREHAM AT 745 PM CDT...
  VERGAS AT 750 PM CDT...
  FRAZEE AT 800 PM CDT...
  EVERGREEN AT 815 PM CDT...

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

LAT...LON 4678 9612 4660 9609 4663 9536 4686 9540


$$
HOPPES


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 Jun 8, 2:20 PM CDT, 5 hours 20 minutes earlier.

Area forecast discussion, Jun 8, 2:20 PM CDT, 5 hours 20 minutes before
FORECAST DISCUSSION FOR EASTERN NORTH DAKOTA AND NORTHWEST MINNESOTA
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS
220 PM CDT FRI JUN 8 2001

FORECAST CHALLENGE WILL BE CONVECTION THROUGH PERIOD

.OVERVIEW...
UPPER WAVE AND SFC TROUGH CONTINUES TO MOVE EAST INTO THE RED RIVER
VALLEY THIS AFTERNOON. CONVECTION IS GETTING MORE INTENSE NEAR
INTERNATIONAL BORDER ATTM...WITH ANOTHER CELL IN NORTHWEST FA. ETA
MODEL DID THE BEST WITH MOISTURE...SO WILL UTILIZE.

.SHORT TERM...
CONVECTION THIS EVENING ENTERING MN SHOULD SLOWLY DIE WITH DAY TIME
HEATING OVERNIGHT...BUT SHOULD PERSIST TO AROUND 04Z AFTER UPPER WAVE
MOVES THROUGH AREA. THERE MAY BE A SEVERE STORM OR TWO THIS
EVENING...WITH LIFT FROM SHORTWAVE AND DECENT INSTABILITY. LATER
TONIGHT...850MB LOW LEVEL JET DEVELOPS IN CENTRAL SD...WITH
SHOWALTER/S APPROACHING -2C IN SOUTHEAST ND BY 12Z SAT. THIS COULD
BRING A ROUND OF THUNDERSTORMS INTO SOUTHEAST ND LATE TONIGHT. TEMPS
SHOULD FALL INTO THE MIDDLE 50S.

.LONG TERM...
ACTIVE PATTERN SHOULD CONTINUE WITH WARM AIR ADVECTION CONTINUING
WITH GOOD MID LEVEL FLOW. SFC WARM FRONT WILL DEVELOP IN NEAR
NORTHEAST SD...WITH FAIRLY WEAK PRESSURE PATTERN OVER FA.
INSTABILITY AND MOISTURE WILL BE PLENTIFUL THROUGH SUNDAY...WITH
CAPES AROUND 2000 J/KG AND PRECIPITABLE WATERS AROUND 1.20 INCHES
ACROSS ALL BUT EXTREME NORTHEAST FA. EVEN IN NORTHEAST....CAPES
APPROACH 1500 J/KG WITH PRECIPITABLE WATERS NEARING 1 INCH BY 00Z
SUNDAY. STORMS SHOULD HOLD OFF ACROSS NORTHERN FA ON SATURDAY UNTIL
AFTERNOON...WITH THE REST OF AREA SEEING A CHANCE AT ANY TIME
SATURDAY. A POTENT SHORTWAVE WILL RIDE OVER RIDGE SATURDAY
NIGHT...AND EXPECT AN MCS TO DEVELOP ACROSS SOUTHEAST ND AND RIDE
SOUTHEAST BY SUNDAY MORNING.  TIMING OF SHORTWAVES IS TOUGH...AND WITH
BOUNDARIES LEFT OVER FROM CONVECTION WILL JUST MENTION A CHANCE FOR
STORMS ALL DAY SUNDAY...WITH BEST CHANCES FROM LATE AFTERNOON
THROUGH THE NIGHT. EXPECT SOME SEVERE STORMS THROUGHOUT
WEEKEND...WITH BEST CHANCES SATURDAY AFTERNOON/EVENING...THEN AGAIN
SUNDAY AFTERNOON AND SUNDAY NIGHT WITH ANOTHER MCS POSSIBLE AS
SOUTHWEST FLOW DEVELOPS. TEMPS WILL BE AROUND 80 TO 85...WITH
DEWPOINTS NEAR 60 MAKING IT FEEL QUITE MUGGY. EXPECT LOWS IN THE
MIDDLE 50S TO AROUND 60 AS WELL. FWC HAS A GOOD HANDLE ON
SITUATION...AND WILL FOLLOW FAIRLY CLOSELY.

STILL SOME TIMINING DIFFERENCES ON THE EXTEDNED MODELS IN WHEN THE
50H MOTHER LOW EJECTS OUT OF THE MOUNTAIN STATES NEXT WEEK. UNTIL
THE LOW EJECTS OUT CAN NOT RULE OUT A CHANCE OF SHOWERS AND
THUNDERSTORMS ON ANY GIVEN DAY IN SOUTHWEST FLOW ALOFT. CONFIDENCE
BEGINS TO DIMINISH IN THE FORECAST RIGHT AT THE START OF THE
EXTENDED. THE ECMWF IS NOW THE FASTEST OF THE MODELS WITH THE
CANADIAN STILL THE SLOWEST. MRF IS IN THE MIDDLE OF THE ROAD AND IS
NOTORIOUSLY TO FAST IN THESE SITUATIONS. WILL CONTINUE TOWARDS THE
TRANSISTION TO A MORE ACTIVE PATTEREN FROM PREVIOUS EXTENDED. WITH
THE AMOUNT OF INSTABILITY COULD SEE SEVERE TSRA AND HEAVY RAINS
THROUGH WEDENSDAY.
.FGF...NONE.

KELLENBENZ/BRAZZELL

In the hours before

Local storm report, Jun 8, 4:18 PM CDT, 3 hours 22 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE EASTERN NORTH DAKOTA/GRAND FORKS
418 PM CDT FRI JUN 08 2001

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

0855 PM    11 NE LANCASTER           MN   .75 INCH HAIL
06/08/01   KITTSON
Local storm report, Jun 8, 4:18 PM CDT, 3 hours 22 minutes before
PRELIMINARY LOCAL STORM REPORT...CORRECTION...
NATIONAL WEATHER SERVICE EASTERN NORTH DAKOTA/GRAND FORKS
418 PM CDT FRI JUN 08 2001

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

0355 PM    11 NE LANCASTER           MN   .75 INCH HAIL
06/08/01   KITTSON

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 9, 2:10 PM CDTSevere Thunderstorm WarningFGFGrant35 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.