Alert archive / Minnesota / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 9, NWS Twin Cities, MN

May 22, 1990Morrison County, Todd County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at May 22, 1990, 3:40 PM CDT for Morrison County, Todd County, Minnesota. It was in force for 35 min. 1 report 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
May 22, 1990, 3:40 PM CDT (20:40 UTC)
Expired
May 22, 1990, 4:15 PM CDT
In force
35 min
Issued by
NWS Twin Cities, MN
Area
Whole counties

Counties Morrison County, MN, Todd 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
May 22, 3:45 PM CDTHail 0.75Todd, 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 12:00Z, 8.7 hours before the alert went out and 153 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 1990-05-22Temperature 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 1990-05-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 60 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1111 m above ground
0-6 km bulk shear
49 kt
0-1 km storm-relative helicity
60 m²/s²
0-3 km storm-relative helicity
42 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 Twin Cities, MN issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 22, 3:11 PM CDTSevere Thunderstorm WarningMPXTodd64 min
May 22, 3:46 PM CDTSevere Thunderstorm WarningMPXMorrison, Todd29 min
May 22, 4:07 PM CDTSevere Thunderstorm WarningMPXBenton, Morrison, Stearns53 min
May 22, 4:07 PM CDTSevere Thunderstorm WarningMPXPope53 min
May 22, 4:26 PM CDTSevere Thunderstorm WarningMPXBenton, Stearns54 min
May 22, 5:05 PM CDTSevere Thunderstorm WarningMPXKandiyohi, Meeker55 min
May 22, 5:42 PM CDTSevere Thunderstorm WarningMPXKandiyohi, Meeker33 min
May 22, 6:13 PM CDTSevere Thunderstorm WarningMPXMcLeod, Renville, Sibley32 min
May 22, 6:59 PM CDTSevere Thunderstorm WarningMPXBlue Earth, Brown, Nicollet61 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.