Alert archive / Minnesota / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 319, NWS Twin Cities, MN

September 25, 1998Douglas County, Todd County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Sep 25, 1998, 10:20 PM CDT for Douglas County, Todd County, Minnesota. It was in force for 65 min. 6 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 25, 1998, 10:20 PM CDT (03:20 UTC)
Expired
Sep 25, 1998, 11:25 PM CDT
In force
65 min
Issued by
NWS Twin Cities, MN
Area
Whole counties

Counties Douglas County, MN, Todd County, MN

The radar

The Minneapolis radar (KMPX), 180 km from the middle of the area, began a volume at 03:20 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What was reported inside it

TimeReportWhereRemark
Sep 25, 10:40 PM CDTHail 0.88Long Prairie, MN
Sep 25, 10:46 PM CDTHail 1.75Long Prairie, MN
Sep 25, 10:49 PM CDTHail 1Long Prairie, MN
Sep 25, 10:50 PM CDTHail 1.75Long Prairie, MNMany home and vehicle windows broken on the north side of the city.
Sep 25, 10:55 PM CDTThunderstorm Wind 55Grey Eagle, MN12 large trees blown down. Trailer homes damaged. Docks destroyed.
Sep 25, 11:15 PM CDTThunderstorm Wind 50Grey Eagle, MNTrees blown down. Several roofs blown off. Estimated windspeed.

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.

The nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 3.3 hours before the alert went out and 178 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 1998-09-26Temperature 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°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Minneapolis, MN at 00:00Z on 1998-09-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 247 square meters per square second.1939587897117Sfc1 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
1859 m above ground
0-6 km bulk shear
74 kt
0-1 km storm-relative helicity
247 m²/s²
0-3 km storm-relative helicity
276 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

651 
WUUS1 KMSP 260322 RRA
SVRMSP
MNC041-153-260425-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1020 PM CDT FRI SEP 25 1998

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES/CHANHASSEN HAS
ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EASTERN DOUGLAS COUNTY IN WEST CENTRAL MINNESOTA
  TODD COUNTY IN CENTRAL MINNESOTA

* UNTIL 1125 PM CDT

* AT AT 1020 PM CDT...DOPPLER RADAR INDICATED A SEVERE STORM WITH
  LARGE HAIL NEAR CARLOS OR 10 MILES NORTHEAST OF ALEXANDRIA.
  THE STORM WAS MOVING EAST AT 40 MPH.

* SOME LOCATIONS AFFECTED
    LONG PRAIRIE
    OSAKIS

THIS IS A DANGEROUS STORM.  STAY INDOORS AWAY FROM WINDOWS.


SCOTT

The office that day

Everything else NWS Twin Cities, MN issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Sep 25, 10:59 PM CDTSevere Thunderstorm WarningMPXMorrison61 min
Sep 25, 11:48 PM CDTSevere Thunderstorm WarningMPXBenton, Mille Lacs62 min
Sep 26, 12:12 AM CDTTornado WarningMPXIsanti, Kanabec33 min
Sep 26, 12:26 AM CDTSevere Thunderstorm WarningMPXChisago34 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 1998Every severe thunderstorm warning in 1998

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; radar from the NEXRAD Level II archive.