Alert archive / North Dakota / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 14, NWS Grand Forks, ND

May 6, 2000Benson County, Eddy County, North Dakota

NWS Grand Forks, ND issued this severe thunderstorm warning at May 6, 2000, 1:40 AM CDT for Benson County, Eddy County, North Dakota. It was in force for 30 min. 2 reports 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: May 6, 2000, 1:40 AM CDT (06:40 UTC)
Expired: May 6, 2000, 2:10 AM CDT
In force: 30 min
Issued by: NWS Grand Forks, ND
Area: Whole counties

Counties Benson County, ND, Eddy County, ND

What was reported inside it

Time	Report	Where	Remark
May 6, 2:00 AM CDT	Hail 1	Minnewaukan, ND
May 6, 2:15 AM CDT	Hail 1	St Michael, ND

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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
May 5, 9:15 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 00:00Z, 6.7 hours before the alert went out and 172 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: 1703 J/kg
Mixed-layer CIN: -86 J/kg
Mixed-layer LCL: 1710 m above ground
0-6 km bulk shear: 48 kt
0-1 km storm-relative helicity: 26 m²/s²
0-3 km storm-relative helicity: 184 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 5.5

Open this sounding in Storm Lab

The text

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

000 
WUUS53 KFGF 060641
SVRFAR
NDC005-027-071-060710-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE EASTERN ND-GRAND FORKS
140 AM CDT SAT MAY 6 2000

THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EXTREME NORTHWESTERN EDDY COUNTY IN NORTHEAST NORTH DAKOTA
  SOUTHEASTERN BENSON COUNTY IN NORTHEAST NORTH DAKOTA
  SOUTHWESTERN RAMSEY COUNTY IN NORTHEAST NORTH DAKOTA

* UNTIL 210 AM CDT

* AT 136 AM CDT...NATIONAL WEATHER SEVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 5 MILES SOUTHEAST OF FLORA...OR ABOUT 27 MILES
  SOUTHWEST OF DEVILS LAKE...MOVING NORTHEAST AT 40 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  OBERON AT 145 AM CDT
  FORT TOTTEN AT 200 AM CDT
  DEVILS LAKE AT 210 AM CDT

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

LAT...LON 4791 9953 4778 9933 4809 987o4 4830 9901

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 May 5, 8:55 PM CDT, 4 hours 45 minutes earlier.

Area forecast discussion, May 5, 8:55 PM CDT, 4 hours 45 minutes before

FORECAST DISCUSSION FOR EASTERN NORTH DAKOTA AND NORTHWEST MINNESOTA
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS
855 PM CDT FRI MAY 5 2000

SEVERE THUNDERSTORMS CONTINUE TO FIRE OVER NW MN THIS EVENING...WITH
SVR THUNDERSTORM WATCH JUST ARRIVING. MOST ACTIVITY CONFINED ALONG
AND NORTH OF SFC BOUNDARY ATTM WHERE BEST MOISTURE CONVERGENCE
LOCATED. WITH MAIN UPPER LEVEL SYSTEM STILL WELL OFF TO THE
SOUTHEAST AND WITH SFC LOW STILL HOLDING OVER ERN WY...LOOK LIKE IT
WILL BE A BUSY NIGHT.

WILL NOT MAKE ANY ADJUSTMENTS TO ZONES OTHER THAN ADDING IN WATCH
WHICH WILL BE ISSUED SHORTLY.

RJT

In the hours before

Local storm report, May 6, 1:33 AM CDT, 7 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE EASTERN NORTH DAKOTA/GRAND FORKS
133 AM CDT SAT MAY 06 2000

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

0820 PM    LAKE BRONSON              MN   .75 INCH HAIL
05/05/00   KITTSON                        DIME SIZED HAIL REPORTED
                                          BY SPOTTER

0842 PM    KARLSTAD                  MN   .88 INCH HAIL
05/05/00   KITTSON                        NICKLE SIZED HAIL REPORTED
                                          BY SPOTTER

0850 PM    LAKE BRONSON              MN   .88 INCH HAIL
05/05/00   KITTSON                        NICKLE SIZE HAIL REPORTED
                                          BY SPOTTER

0852 PM    BADGER                    MN   1 INCH HAIL
05/05/00   ROSEAU                         QUARTER SIZE HAIL FELL FOR
                                          5 TO 10 MINUTES. DIME SIZE
                                          HAIL ALSO REPORTED AT
                                          BADGER

0900 PM    MIDDLE RIVER              MN   WIND DAMAGE
05/05/00   MARSHALL                       METAL BUILDING LOST
                                          PORTION OF ROOF AND WAS
                                          MOVED OFF OF FOUNDATION
                                          DELAYED REPORT FROM HAM
                                          OPERATOR

0920 PM    BINFORD                   ND   1.5 INCH HAIL
05/05/00   GRIGGS                         QUARTER SIZE HAIL ALSO
                                          REPORTED IN BINFORD AT 817
                                          PM CST

0925 PM    16 NE MIDDLE RIVER        MN   .75 INCH HAIL
05/05/00   MARSHALL                       DIME SIZE HAIL REPORTED BY
                                          SPOTTER

0950 PM    ANETA                     ND   1.5 INCH HAIL
05/05/00   NELSON                         1.5 INCH HAIL REPORTED BY
                                          SPOTTER

0956 PM    ANETA                     ND   1.75 INCH HAIL
05/05/00   NELSON                         GOLFBALL SIZE HAIL
                                          REPORTED BY SHERIFF OFFICE

NNNN

RJT

The office that day

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

Issued	Product	Office	Counties	Lasted
May 5, 9:13 PM CDT	Severe Thunderstorm Warning	FGF	Griggs, Nelson	42 min
May 5, 9:53 PM CDT	Severe Thunderstorm Warning	FGF	Griggs, Nelson, Steele	42 min
May 5, 9:53 PM CDT	Severe Thunderstorm Warning	FGF	Grand Forks	42 min
May 5, 10:10 PM CDT	Severe Thunderstorm Warning	FGF	Griggs	40 min
May 5, 10:52 PM CDT	Severe Thunderstorm Warning	FGF	Griggs, Steele	33 min
May 6, 1:40 AM CDT	Severe Thunderstorm Warning	FGF	Ramsey	30 min
May 6, 2:11 AM CDT	Severe Thunderstorm Warning	FGF	Benson, Cavalier, Ramsey	29 min
May 6, 2:40 AM CDT	Severe Thunderstorm Warning	FGF	Cavalier, Pembina	45 min
May 6, 2:42 AM CDT	Severe Thunderstorm Warning	FGF	Ramsey	28 min
May 6, 2:53 AM CDT	Severe Thunderstorm Warning	FGF	Nelson, Walsh	32 min

Nearby

Severe Thunderstorm Warnings in North Dakota, 2000 Every severe thunderstorm warning in 2000

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.