Alert archive / North Dakota / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 19, NWS Grand Forks, ND

May 6, 2000Nelson County, Walsh County, North Dakota

NWS Grand Forks, ND issued this severe thunderstorm warning at May 6, 2000, 2:53 AM CDT for Nelson County, Walsh County, North Dakota. It was in force for 32 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
May 6, 2000, 2:53 AM CDT (07:53 UTC)
Expired
May 6, 2000, 3:25 AM CDT
In force
32 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), 92 km from the middle of the area, began a volume at 07:56 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 watch it was issued in

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

IssuedProductOfficeLasted
May 5, 9:15 PM CDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 00:00Z, 7.9 hours before the alert went out and 244 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 2000-05-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1703 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Bismarck Municip, ND at 00:00Z on 2000-05-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 26 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
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 060754
SVRFAR
NDC063-099-060825-

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

THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHEASTERN NELSON COUNTY IN NORTHEAST NORTH DAKOTA
  SOUTHWESTERN WALSH COUNTY IN NORTHEAST NORTH DAKOTA

* UNTIL 325 AM CDT

* AT 251 AM CDT...NATIONAL WEATHER SEVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 3 MILES NORTHEAST OF MAPES...OR ABOUT 32 MILES
  EAST OF DEVILS LAKE...MOVING NORTHEAST AT 45 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  WHITMAN AT 300 AM CDT
  LANKIN AT 305 AM CDT

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

LAT...LON 4808 9837 4796 9818 4830 9779 4829 9809

NNNN

The office that day

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

IssuedProductOfficeCountiesLasted
May 5, 9:13 PM CDTSevere Thunderstorm WarningFGFGriggs, Nelson42 min
May 5, 9:53 PM CDTSevere Thunderstorm WarningFGFGriggs, Nelson, Steele42 min
May 5, 9:53 PM CDTSevere Thunderstorm WarningFGFGrand Forks42 min
May 5, 10:10 PM CDTSevere Thunderstorm WarningFGFGriggs40 min
May 5, 10:52 PM CDTSevere Thunderstorm WarningFGFGriggs, Steele33 min
May 6, 1:40 AM CDTSevere Thunderstorm WarningFGFBenson, Eddy30 min
May 6, 1:40 AM CDTSevere Thunderstorm WarningFGFRamsey30 min
May 6, 2:11 AM CDTSevere Thunderstorm WarningFGFBenson, Cavalier, Ramsey29 min
May 6, 2:40 AM CDTSevere Thunderstorm WarningFGFCavalier, Pembina45 min
May 6, 2:42 AM CDTSevere Thunderstorm WarningFGFRamsey28 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.