Alert archive / North Dakota / Severe Thunderstorm Warnings in 1989

Severe Thunderstorm Warning 22, NWS Grand Forks, ND

July 8, 1989Barnes County, Cass County, North Dakota

NWS Grand Forks, ND issued this severe thunderstorm warning at Jul 8, 1989, 10:15 PM CDT for Barnes County, Cass County, North Dakota. It was in force for 40 min.

The area

The counties it named.

The facts

Issued
Jul 8, 1989, 10:15 PM CDT (03:15 UTC)
Expired
Jul 8, 1989, 10:55 PM CDT
In force
40 min
Issued by
NWS Grand Forks, ND
Area
Whole counties

Counties Barnes County, ND, Cass County, ND

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 00:00Z, 3.3 hours before the alert went out and 232 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 1989-07-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 767 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 1989-07-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 100 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
767 J/kg
Mixed-layer CIN
-194 J/kg
Mixed-layer LCL
3252 m above ground
0-6 km bulk shear
51 kt
0-1 km storm-relative helicity
100 m²/s²
0-3 km storm-relative helicity
312 m²/s²
Significant tornado parameter
0.0
Supercell composite
3.6

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 9, 4:00 AM CDTSevere Thunderstorm WarningFGFClearwater60 min
Jul 8, 9:55 PM CDTSevere Thunderstorm WarningFGFGriggs, Steele65 min

Nearby

Severe Thunderstorm Warnings in North Dakota, 1989Every severe thunderstorm warning in 1989

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.