Alert archive / North Dakota / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 126, NWS Grand Forks, ND

July 7, 2000Griggs County, Nelson County, North Dakota

NWS Grand Forks, ND issued this severe thunderstorm warning at Jul 7, 2000, 11:20 AM CDT for Griggs County, Nelson County, North Dakota. It was in force for 30 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 7, 2000, 11:20 AM CDT (16:20 UTC)
Expired
Jul 7, 2000, 11:50 AM CDT
In force
30 min
Issued by
NWS Grand Forks, ND
Area
Whole counties; the outline is the Mesonet’s reconstruction

Counties Griggs County, ND, Nelson County, ND

The radar

The Fargo/Grand Forks radar (KMVX), 76 km from the middle of the area, began a volume at 16:20 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 7, 11:23 AM CDTHail 1Binford, 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 12:00Z, 4.3 hours before the alert went out and 199 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 12:00Z on 2000-07-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1735 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 12:00Z on 2000-07-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 8 square meters per square second.1939587897Sfc1 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
1735 J/kg
Mixed-layer CIN
-209 J/kg
Mixed-layer LCL
712 m above ground
0-6 km bulk shear
55 kt
0-1 km storm-relative helicity
8 m²/s²
0-3 km storm-relative helicity
55 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.3

Open this sounding in Storm Lab

The text

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

000 
WUUS53 KFGF 071621
SVRFAR
NDC063-071651-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE EASTERN ND-GRAND FORKS
1120 AM CDT FRI JUL 7 2000

THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHERN NELSON COUNTY IN NORTHEAST NORTH DAKOTA

* UNTIL 1150 AM CDT

* AT 1115 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 3 MILES NORTHWEST OF MCVILLE...OR ABOUT 37
  MILES SOUTHEAST OF DEVILS LAKE...MOVEMENT WAS TO THE EAST AT 45
  MPH.

* THE SEVERE THUNDERSTORM WILL REMAIN IN RURAL AREAS OF   
  SOUTHERN NELSON COUNTY.

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

LAT...LON 4783 9845 4770 9826 4774 9794 4795 9799

NNNN
1 follow-up statement
000 
WUUS53 KFGF 071620 RRA
SVRFAR
NDC039-071650-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE EASTERN ND-GRAND FORKS
1120 AM CDT FRI JUL 7 2000

THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHERN GRIGGS COUNTY IN SOUTHEAST NORTH DAKOTA

* UNTIL 1150 AM CDT

* AT 1115 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 3 MILES SOUTHWEST OF BINFORD...OR ABOUT 45
  MILES SOUTHEAST OF DEVILS LAKE...MOVEMENT WAS TO THE EAST AT 30
  MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  JESSIE AT 1125 AM CDT...

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

LAT...LON 4757 9857 4744 9838 4758 9801 4768 9817

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 7, 10:30 AM CDT, 50 minutes earlier.

Area forecast discussion, Jul 7, 10:30 AM CDT, 50 minutes before
FORECAST DISCUSSION FOR EASTERN NORTH DAKOTA AND NORTHWEST MINNESOTA
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
1030 AM CDT FRI JUL 7 2000

-14C TEMP REPORTED AT 500 HPA ACRS SRN MAN WHICH IS COOLER THAN
MODELS HAVE FCST. SAME AT 700 AND 850 HPA. COOLER AIR THAN XPCD IS
CREATING TSRA ACRS CWFA. 88D HAS TSRA OVR GFK COUNTY AND BELTRAMI
MOVG E. WL KEEP CHC TSRA FOR TDY. WL CHECK ZONES.

.FGF...NONE.
HOPPES

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 7, 2:21 AM CDTSevere Thunderstorm WarningFGFCass29 min
Jul 7, 2:49 AM CDTSevere Thunderstorm WarningFGFCass31 min
Jul 7, 4:44 AM CDTSevere Thunderstorm WarningFGFCavalier, Towner31 min
Jul 7, 6:03 AM CDTSevere Thunderstorm WarningFGFRamsey, Walsh32 min
Jul 7, 6:18 AM CDTSevere Thunderstorm WarningFGFEddy32 min
Jul 7, 6:37 AM CDTSevere Thunderstorm WarningFGFWalsh28 min
Jul 7, 6:52 AM CDTSevere Thunderstorm WarningFGFEddy, Nelson28 min
Jul 7, 7:05 AM CDTSevere Thunderstorm WarningFGFBenson30 min
Jul 7, 9:45 AM CDTSevere Thunderstorm WarningFGFNelson30 min
Jul 7, 10:11 AM CDTSevere Thunderstorm WarningFGFGrand Forks29 min
Jul 7, 10:52 AM CDTSevere Thunderstorm WarningFGFNelson, Walsh28 min
Jul 7, 11:28 AM CDTSevere Thunderstorm WarningFGFGrand Forks47 min
Jul 7, 11:43 AM CDTSevere Thunderstorm WarningFGFSteele32 min
Jul 7, 11:52 AM CDTFlash Flood WarningFGFGrand Forks6 hr
Jul 7, 11:52 AM CDTFlash Flood WarningFGFGrand Forks, Nelson6 hr
Jul 7, 12:15 PM CDTSevere Thunderstorm WarningFGFSteele, Traill45 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.