Alert archive / Minnesota / Tornado Warnings in 1998

Tornado Warning 54, NWS Twin Cities, MN

August 19, 1998Stearns County, Minnesota

NWS Twin Cities, MN issued this tornado warning at Aug 19, 1998, 5:58 PM CDT for Stearns County, Minnesota. It was in force for 32 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Aug 19, 1998, 5:58 PM CDT (22:58 UTC)
Expired
Aug 19, 1998, 6:30 PM CDT
In force
32 min
Issued by
NWS Twin Cities, MN
Area
Whole counties

County Stearns County, MN

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Aug 19, 3:15 PM CDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 11.0 hours before the alert went out and 111 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 1998-08-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 585 joules per kilogram.LCLLFCEL10008507005003002001001 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 1998-08-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 265 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
585 J/kg
Mixed-layer CIN
-256 J/kg
Mixed-layer LCL
475 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
265 m²/s²
0-3 km storm-relative helicity
317 m²/s²
Significant tornado parameter
0.0
Supercell composite
4.4

Open this sounding in Storm Lab

The text

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

557 
WFUS1 KMSP 192259 RRA
TORMSP
MNC145-192330-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
558 PM CDT WED AUG 19 1998

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

* TORNADO WARNING FOR...
  NORTHEASTERN STEARNS COUNTY IN CENTRAL MINNESOTA

* UNTIL 630 PM CDT

* AT 555 PM CDT...DOPPLER RADAR DETECTED A POSSIBLE TORNADO NEAR ST
  FRANCIS...OR 18 MILES NORTHWEST OF ST CLOUD.  THE STORM WAS MOVING
  EAST SOUTHEAST AT 30 MPH.

* SOME LOCATIONS AFFECTED
    ST STEPHEN
    ST ANTHONY
    AVON
    ST JOSEPH

GO TO THE BASEMENT OR A SMALL INTERIOR ROOM ON THE LOWEST FLOOR

JUSKIE

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 19, 3:10 PM CDTSevere Thunderstorm WarningMPXDouglas35 min
Aug 19, 3:44 PM CDTSevere Thunderstorm WarningMPXDouglas, Pope61 min
Aug 19, 4:00 PM CDTSevere Thunderstorm WarningMPXTodd50 min
Aug 19, 4:08 PM CDTSevere Thunderstorm WarningMPXMorrison47 min
Aug 19, 5:34 PM CDTTornado WarningMPXMorrison31 min
Aug 19, 5:42 PM CDTFlash Flood WarningMPXPope, Stevens2 hr
Aug 19, 6:30 PM CDTSevere Thunderstorm WarningMPXStearns65 min
Aug 19, 6:44 PM CDTSevere Thunderstorm WarningMPXChippewa, Lac qui Parle, Swift61 min
Aug 19, 6:55 PM CDTFlash Flood WarningMPXSwift3 hr
Aug 19, 6:58 PM CDTTornado WarningMPXStearns47 min

Nearby

Tornado Warnings in Minnesota, 1998Every tornado warning in 1998Tornadoes 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; the sounding from the Mesonet's radiosonde archive.