Alert archive / North Dakota / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 124, NWS Grand Forks, ND

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

NWS Grand Forks, ND issued this severe thunderstorm warning at Jul 7, 2000, 10:52 AM CDT for Nelson County, Walsh County, North Dakota. It was in force for 28 min. No storm report in the archive falls 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.

The facts

Issued
Jul 7, 2000, 10:52 AM CDT (15:52 UTC)
Expired
Jul 7, 2000, 11:20 AM CDT
In force
28 min
Issued by
NWS Grand Forks, ND
Area
Whole counties; the outline is the Mesonet’s reconstruction

Counties Nelson County, ND, Walsh County, ND

The radar

The Fargo/Grand Forks radar (KMVX), 88 km from the middle of the area, began a volume at 16:00 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.

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 12:00Z, 3.9 hours before the alert went out and 243 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 071552
SVRFAR
NDC063-099-071622-
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE EASTERN ND-GRAND FORKS
1052 AM CDT FRI JUL 7 2000

THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHWESTERN NELSON COUNTY IN NORTHEAST NORTH DAKOTA
  SOUTH CENTRAL WALSH COUNTY IN NORTHEAST NORTH DAKOTA

* UNTIL 1120 AM CDT

* AT 1050 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  THE LEADING EDGE OF SEVERE THUNDERSTORMS ALONG A LINE EXTENDING
  FROM 30 MILES WEST OF GRAFTON TO 28 MILES SOUTHEAST OF DEVILS
  LAKE...MOVEMENT WAS TO THE NORTHEAST AT 25 MPH.

* SEVERE THUNDERSTORMS WILL BE NEAR...
  MAPES AT 1055 AM CDT...
  MICHIGAN AT 1120 AM CDT...

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

LAT...LON 4828 9805 4780 9851 4785 9828 4829 9782

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, 22 minutes earlier.

Area forecast discussion, Jul 7, 10:30 AM CDT, 22 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, 11:20 AM CDTSevere Thunderstorm WarningFGFGriggs, Nelson30 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.