Alert archive / North Dakota / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 102, NWS Grand Forks, ND

July 4, 2000Barnes County, North Dakota

NWS Grand Forks, ND issued this severe thunderstorm warning at Jul 4, 2000, 8:43 PM CDT for Barnes County, North Dakota. It was in force for 47 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
Jul 4, 2000, 8:43 PM CDT (01:43 UTC)
Expired
Jul 4, 2000, 9:30 PM CDT
In force
47 min
Issued by
NWS Grand Forks, ND
Area
Whole counties; the outline is the Mesonet’s reconstruction

County Barnes County, ND

The radar

The Fargo/Grand Forks radar (KMVX), 86 km from the middle of the area, began a volume at 01:43 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
Jul 4, 9:00 PM CDTHail 0.75Leal, 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 nearest sounding before it

Bismarck Municip, ND (KBIS), launched 00:00Z, 1.7 hours before the alert went out and 186 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, Bismarck Municip, ND at 00:00Z on 2000-07-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1565 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, Bismarck Municip, ND at 00:00Z on 2000-07-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 76 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
1565 J/kg
Mixed-layer CIN
-56 J/kg
Mixed-layer LCL
683 m above ground
0-6 km bulk shear
41 kt
0-1 km storm-relative helicity
76 m²/s²
0-3 km storm-relative helicity
86 m²/s²
Significant tornado parameter
0.8
Supercell composite
4.7

Open this sounding in Storm Lab

The text

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

000 
WUUS53 KFGF 050142
SVRFAR
NDC003-050228-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE EASTERN ND-GRAND FORKS
843 PM CDT TUE JUL 4 2000

THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHWESTERN BARNES COUNTY IN SOUTHEAST NORTH DAKOTA

* UNTIL 930 PM CDT

* AT 838 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 4 MILES SOUTH OF WIMBLEDON...OR ABOUT 26 MILES
  NORTHWEST OF VALLEY CITY...MOVEMENT WAS TO THE EAST AT 25 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  LEAL AT 855 PM CDT...
  DAZEY AT 910 PM CDT...
  BALD HILL DAM AT 925 PM CDT...

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

LAT...LON 4721 9847 4704 9848 4702 9806 4722 9806

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 4, 8:25 PM CDT, 18 minutes earlier.

Area forecast discussion, Jul 4, 8:25 PM CDT, 18 minutes before
FORECAST DISCUSSION FOR EASTERN NORTH DAKOTA AND NORTHWEST MINNESOTA
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
825 PM CDT TUE JUL 4 2000

MESSY SFC PATTERN THIS EVENING WITH NUMEROUS BOUNDARIES OVER ND.
SFC LOW LOCATED IN SCNTRL ND WITH ANOTHER LOW IN SW SD.  SFC TROUGHS
LOCATED FROM SE MANITOBA TO CNTRL ND THEN TO WRN SD.  WARM FRONT
FROM THE ND LOW EAST INTO CNTRL/SRN MN.

COMPLEX OF TSTMS IN ERN ND HAS BEEN MOVING SLOWLY EAST WITH
STRONGEST TSTMS DEVELOPING SOUTH WITH TIME ALL EVENING.  THIS
21Z/00Z RUC MAINTAINS TIGHT 85H THETA-E RIDGE CNTRL ND...NR A
BIS-DVL LINE.  THIS DOES NOT MOVE EAST MUCH OVERNIGHT.  THUS
ANTICIPATE CELLS TO CONTINUE TO BUILD SOUTH WITH TIME INTO THIS RICH
THETA-E AIR...WITH GREATEST THREAT OF SVR WEATHER JMS/VCY AREA NEXT
FEW HOURS.  VERY HIGH PWAT (1.50+) SO HEAVY RAIN A BIG THREAT WHERE
CELLS TRAIN.  THICKNESS PATTERN SHOWS MCS WILL GENERALLY MOVE
DEVELOP SOUTHEAST WITH TIME HOWEVER IT WILL RUN INTO LESS RICH
THETA-E AIR.  SO SVR/HEAVY RAIN MAY DIMINISH OVERNIGHT.

IN ADDITION...MCS IN SE MT WILL TRACK INTO SW/SCNTRL ND TONIGHT
AND ACCORDING TO ETA TRACK ACROSS ND OVERNIGHT.  UNCERTAIN HOW
CURRENT ACTIVITY WILL INFLUENCE ANY MCS THAT WILL MOVE IN FROM THE
WEST.

WILL BROADBRUSH CWFA WITH SCT TSRA TONIGHT AND MENTION LOCALLY HEAVY
RAIN.

.FGF...NONE.

RIDDLE

In the hours before

Local storm report, Jul 4, 7:54 PM CDT, 49 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE EASTERN NORTH DAKOTA/GRAND FORKS
754 PM CDT TUE JUL 04 2000

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

0600 PM    4 N OBERON                ND   60 MPH TSTM GUST
07/04/00   BENSON                         ANTENNAS BLOWN DOWN AND
                                          TREES DOWN

0612 PM    5 W NEW ROCKFORD          ND   1 INCH HAIL
07/04/00   EDDY

N

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 4, 7:57 PM CDTSevere Thunderstorm WarningFGFNelson28 min
Jul 4, 9:34 PM CDTSevere Thunderstorm WarningFGFGrand Forks31 min
Jul 4, 10:08 PM CDTSevere Thunderstorm WarningFGFGrand Forks32 min
Jul 4, 10:53 PM CDTSevere Thunderstorm WarningFGFBarnes32 min
Jul 4, 11:10 PM CDTSevere Thunderstorm WarningFGFCass30 min
Jul 4, 11:40 PM CDTSevere Thunderstorm WarningFGFRansom45 min
Jul 4, 11:42 PM CDTSevere Thunderstorm WarningFGFCass43 min
Jul 5, 12:05 AM CDTFlash Flood WarningFGFBarnes, Cass6 hr
Jul 5, 12:25 AM CDTSevere Thunderstorm WarningFGFRansom30 min
Jul 5, 12:38 AM CDTSevere Thunderstorm WarningFGFSargent32 min
Jul 5, 12:54 AM CDTSevere Thunderstorm WarningFGFRichland46 min
Jul 5, 1:16 AM CDTFlash Flood WarningFGFRansom, Richland, Sargent5 hr
Jul 5, 1:21 AM CDTSevere Thunderstorm WarningFGFSargent29 min

Nearby

Severe Thunderstorm Warnings in North Dakota, 2000Every 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; radar from the NEXRAD Level II archive.