Alert archive / Minnesota / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 334, NWS Twin Cities, MN

October 14, 1998Martin County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Oct 14, 1998, 2:37 PM CDT for Martin County, Minnesota. It was in force for 28 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
Oct 14, 1998, 2:37 PM CDT (19:37 UTC)
Expired
Oct 14, 1998, 3:05 PM CDT
In force
28 min
Issued by
NWS Twin Cities, MN
Area
Whole counties

County Martin County, MN

The radar

The Minneapolis radar (KMPX), 152 km from the middle of the area, began a volume at 19:36 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
Oct 14, 2:47 PM CDTHail 1Welcome, 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.

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 7.6 hours before the alert went out and 151 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 1998-10-14Temperature 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 1998-10-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 91 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
834 m above ground
0-6 km bulk shear
41 kt
0-1 km storm-relative helicity
91 m²/s²
0-3 km storm-relative helicity
213 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.

293 
WUUS1 KMSP 141939 RRA
SVRMSP
MNC091-142005-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
237 PM CDT WED OCT 14 1998

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

* SEVERE THUNDERSTORM WARNING FOR...
  WESTERN MARTIN COUNTY IN SOUTH CENTRAL MINNESOTA

* UNTIL 305 PM CDT

* AT 235 PM CDT...DOPPLER RADAR INDICATED A SEVERE STORM WITH LARGE
  HAIL 10 MILES SOUTHWEST OF TRIMONT..OR ABOUT 25 MILES WEST OF
  FAIRMONT.  THE STORM WAS MOVING NORTHEAST AT 30 MPH.

* SOME LOCATIONS AFFECTED
    TRIMONT
    RURAL AREAS SOUTHWEST OF TRIMONT

THIS IS A DANGEROUS STORM...WITH LARGE HAIL.  STAY INDOORS AWAY
FROM WINDOWS.

KRAUSE

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 14, 2:25 PM CDTSevere Thunderstorm WarningMPXBrown25 min
Oct 14, 2:47 PM CDTSevere Thunderstorm WarningMPXBrown33 min
Oct 14, 3:03 PM CDTSevere Thunderstorm WarningMPXNicollet, Renville, Sibley32 min
Oct 14, 3:09 PM CDTSevere Thunderstorm WarningMPXMcLeod41 min
Oct 14, 3:16 PM CDTSevere Thunderstorm WarningMPXMartin49 min
Oct 14, 3:34 PM CDTSevere Thunderstorm WarningMPXRenville, Sibley41 min
Oct 14, 3:53 PM CDTSevere Thunderstorm WarningMPXMcLeod37 min
Oct 14, 6:24 PM CDTSevere Thunderstorm WarningMPXWatonwan61 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.