Alert archive / North Dakota / Severe Thunderstorm Watches in 2002

Severe Thunderstorm Watch 495

July 5, 20028 counties in North Dakota

The Storm Prediction Center issued this severe thunderstorm watch at Jul 5, 2002, 1:00 AM CDT for 8 counties in North Dakota. It was in force for 5 hr.

The area

The outline as issued.

The facts

Issued
Jul 5, 2002, 1:00 AM CDT (06:00 UTC)
Expired
Jul 5, 2002, 6:00 AM CDT
In force
5 hr
Issued by
the Storm Prediction Center

Counties Burke County, ND, Divide County, ND, McKenzie County, ND, McLean County, ND, Mountrail County, ND, Renville County, ND, Ward County, ND, Williams County, ND

Warnings issued inside it

1 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

IssuedProductOfficeCountiesLasted
Jul 5, 2:41 AM CDTSevere Thunderstorm WarningBISBurke, Mountrail64 min

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 00:00Z, 6.0 hours before the alert went out and 219 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 2002-07-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2483 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 00:00Z on 2002-07-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 73 square meters per square second.193958Sfc1 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
2483 J/kg
Mixed-layer CIN
-39 J/kg
Mixed-layer LCL
1896 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
73 m²/s²
0-3 km storm-relative helicity
292 m²/s²
Significant tornado parameter
0.3
Supercell composite
17.7

Open this sounding in Storm Lab

Nearby

Severe Thunderstorm Watches in North Dakota, 2002Every severe thunderstorm watch 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; the sounding from the Mesonet's radiosonde archive.