Alert archive / North Dakota / Tornado Warnings in 2002

Tornado Warning 4, NWS Bismarck, ND

July 9, 2002McIntosh County, North Dakota

NWS Bismarck, ND issued this tornado warning at Jul 9, 2002, 5:11 PM CDT for McIntosh County, North Dakota. It was in force for 34 min. 3 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Jul 9, 2002, 5:11 PM CDT (22:11 UTC)
Expired: Jul 9, 2002, 5:45 PM CDT
In force: 34 min
Issued by: NWS Bismarck, ND
Area: Counties, with a storm outline in the text

County McIntosh County, ND

The radar

The Aberdeen radar (KABR), 99 km from the middle of the area, began a volume at 22:14 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	Remark
Jul 9, 5:40 PM CDT	Hail 1.75	Ashley, ND
Jul 9, 5:40 PM CDT	Tornado F0	Ashley, ND	Tornado briefly touched down in open country. Rainfall from the storm measured at 2.50 inches. Crops on 3 seperate farms reported wiped out.
Jul 9, 5:40 PM CDT	Thunderstorm Wind 52 E	Ashley, 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, 10.2 hours before the alert went out and 130 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 870 m above ground
0-6 km bulk shear: 45 kt
0-1 km storm-relative helicity: 169 m²/s²
0-3 km storm-relative helicity: 258 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -0.0

Open this sounding in Storm Lab

The text

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

358 
WFUS53 KBIS 092211
TORBIS
NDC051-092245-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE BISMARCK ND
510 PM CDT TUE JUL 9 2002

THE NATIONAL WEATHER SERVICE IN BISMARCK HAS ISSUED A

* TORNADO WARNING FOR...
  EASTERN MCINTOSH COUNTY IN SOUTHEAST NORTH DAKOTA

* UNTIL 545 PM CDT

* AT 510 PM CDT...SKYWARN SPOTTERS REPORTED A TORNADO 2 MILES NORTHWEST
  ASHLEY...OR ABOUT 67 MILES SOUTHWEST OF JAMESTOWN...MOVING SOUTHEAST 
  AT 15 MPH.

* THE TORNADO IS EXPECTED TO BE NEAR...
  ASHLEY AT 515 PM CDT
  RURAL EASTERN MCINTOSH COUNTY AT 530 PM CDT
  
LAT...LON 4619 9942 4603 9955 4594 9917 4608 9905

RSL

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 8, 10:53 PM CDT	Severe Thunderstorm Warning	BIS	Golden Valley	52 min
Jul 9, 12:10 AM CDT	Severe Thunderstorm Warning	BIS	Billings, Stark	65 min
Jul 9, 5:49 PM CDT	Severe Thunderstorm Warning	BIS	Dickey, McIntosh	56 min
Jul 9, 6:18 PM CDT	Severe Thunderstorm Warning	BIS	LaMoure	57 min
Jul 9, 6:48 PM CDT	Severe Thunderstorm Warning	BIS	Dickey	57 min

Nearby

Tornado Warnings in North Dakota, 2002 Every tornado warning in 2002 Tornadoes in 2002

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.