Alert archive / Minnesota / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 119, NWS Twin Cities, MN

September 7, 1990Kandiyohi County, Meeker County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Sep 7, 1990, 5:05 AM CDT for Kandiyohi County, Meeker County, Minnesota. It was in force for 55 min. 2 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Sep 7, 1990, 5:05 AM CDT (10:05 UTC)
Expired
Sep 7, 1990, 6:00 AM CDT
In force
55 min
Issued by
NWS Twin Cities, MN
Area
Whole counties

Counties Kandiyohi County, MN, Meeker County, MN

The radar

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

What was reported inside it

TimeReportWhereRemark
Sep 7, 5:55 AM CDTHail 2Kandiyohi, MN
Sep 7, 6:00 AM CDTThunderstorm Wind 61Meeker, MN

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. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.

The nearest sounding before it

Minneapolis, MN (KSTC), launched 00:00Z, 10.1 hours before the alert went out and 97 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 00:00Z on 1990-09-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 584 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Minneapolis, MN at 00:00Z on 1990-09-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -40 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
584 J/kg
Mixed-layer CIN
-72 J/kg
Mixed-layer LCL
1272 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
-40 m²/s²
0-3 km storm-relative helicity
-1 m²/s²
Significant tornado parameter
-0.0
Supercell composite
-0.8

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 Twin Cities, MN issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Sep 7, 3:52 AM CDTSevere Thunderstorm WarningMPXPope, Swift43 min
Sep 7, 4:15 AM CDTSevere Thunderstorm WarningMPXKandiyohi45 min
Sep 7, 4:53 AM CDTSevere Thunderstorm WarningMPXStearns67 min
Sep 7, 6:14 AM CDTSevere Thunderstorm WarningMPXSibley31 min
Sep 7, 6:32 AM CDTSevere Thunderstorm WarningMPXLe Sueur, Nicollet28 min
Sep 7, 7:23 AM CDTSevere Thunderstorm WarningMPXBlue Earth, Waseca37 min
Sep 7, 3:36 PM CDTSevere Thunderstorm WarningMPXMartin39 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 1990Every severe thunderstorm warning in 1990

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.