Alert archive / Minnesota / Severe Thunderstorm Warnings in 1992

Severe Thunderstorm Warning 34, NWS Grand Forks, ND

July 15, 1992Koochiching County, Minnesota

NWS Grand Forks, ND issued this severe thunderstorm warning at Jul 15, 1992, 2:39 PM CDT for Koochiching County, Minnesota. It was in force for 36 min.

The area

The counties it named.

The facts

Issued
Jul 15, 1992, 2:39 PM CDT (19:39 UTC)
Expired
Jul 15, 1992, 3:15 PM CDT
In force
36 min
Issued by
NWS Grand Forks, ND
Area
Whole counties

County Koochiching County, MN

The nearest sounding before it

Minneapolis, MN (KSTC), launched 12:00Z, 7.7 hours before the alert went out and 378 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, Minneapolis, MN at 12:00Z on 1992-07-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Minneapolis, MN at 12:00Z on 1992-07-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 143 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1100 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
143 m²/s²
0-3 km storm-relative helicity
205 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

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 14, 7:54 PM CDTSevere Thunderstorm WarningFGFSteele66 min
Jul 14, 8:59 PM CDTSevere Thunderstorm WarningFGFSteele61 min
Jul 14, 10:00 PM CDTSevere Thunderstorm WarningFGFTraill30 min
Jul 14, 11:47 PM CDTSevere Thunderstorm WarningFGFGriggs58 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 1992Every severe thunderstorm warning in 1992

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.