Alert archive / North Dakota / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 7, NWS Grand Forks, ND

May 5, 2000Grand Forks County, North Dakota

NWS Grand Forks, ND issued this severe thunderstorm warning at May 5, 2000, 9:53 PM CDT for Grand Forks County, North Dakota. It was in force for 42 min. 3 reports 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: May 5, 2000, 9:53 PM CDT (02:53 UTC)
Expired: May 5, 2000, 10:35 PM CDT
In force: 42 min
Issued by: NWS Grand Forks, ND
Area: Whole counties; the outline is the Mesonet’s reconstruction

County Grand Forks County, ND

The radar

The Fargo/Grand Forks radar (KMVX), 50 km from the middle of the area, began a volume at 02:54 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

Time	Report	Where
May 5, 10:15 PM CDT	Hail 1	Northwood, ND
May 5, 10:15 PM CDT	Hail 1.75	Sharon, ND
May 5, 10:15 PM CDT	Hail 0.75	Aneta, 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, 2.9 hours before the alert went out and 241 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 060254
SVRFAR
NDC035-039-063-091-060335-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE EASTERN ND-GRAND FORKS
953 PM CDT FRI MAY 5 2000

THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WESTERN GRAND FORKS COUNTY IN NORTHEAST NORTH DAKOTA
  SOUTHEASTERN NELSON COUNTY IN NORTHEAST NORTH DAKOTA
  EXTREME NORTHEASTERN GRIGGS COUNTY IN SOUTHEAST NORTH DAKOTA
  NORTHERN STEELE COUNTY IN SOUTHEAST NORTH DAKOTA

* UNTIL 1035 PM CDT

* AT 949 PM CDT...NATIONAL WEATHER SEVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM OVER ANETA...OR ABOUT 47 MILES WEST OF GRAND
  FORKS...MOVING NORTHEAST AT 35 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  LOGAN CENTER AT 1010 PM CDT
  NORTHWOOD AT 1020 PM CDT
  LARIMORE AT 1025 PM CDT

REMEMBER SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE 
TORNADOES WITH LITTLE OR NO ADVANCE WARNI3NG.

LAT...LON 4781 9820 4755 9798 4760 9748 4810 9752

BRAZZELL

NNNN

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, 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	Benson, Eddy	30 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; radar from the NEXRAD Level II archive.