Alert archive / Minnesota / Tornado Warnings in 1998

Tornado Warning 24, NWS Twin Cities, MN

June 16, 1998Freeborn County, Minnesota

NWS Twin Cities, MN issued this tornado warning at Jun 16, 1998, 4:18 PM CDT for Freeborn 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
Jun 16, 1998, 4:18 PM CDT (21:18 UTC)
Expired
Jun 16, 1998, 4:50 PM CDT
In force
32 min
Issued by
NWS Twin Cities, MN
Area
Whole counties

County Freeborn County, MN

The radar

The Minneapolis radar (KMPX), 132 km from the middle of the area, began a volume at 21:24 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.

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 9.3 hours before the alert went out and 132 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 1998-06-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 147 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 1998-06-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 90 square meters per square second.1939Sfc1 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
147 J/kg
Mixed-layer CIN
-89 J/kg
Mixed-layer LCL
1150 m above ground
0-6 km bulk shear
11 kt
0-1 km storm-relative helicity
90 m²/s²
0-3 km storm-relative helicity
99 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.

135 
WFUS1 KMSP 162121 RRA
TORMSP
MNC047-162150-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
418 PM CDT TUE JUN 16 1998

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

* TORNADO WARNING FOR...
  WESTERN FREEBORN COUNTY IN SOUTH CENTRAL MINNESOTA

* UNTIL 450 PM CDT

* AT 418 PM CDT...SEVERE WEATHER SPOTTERS REPORTED A TORNADO NEAR
  ALDEN OR 10 MILES WEST OF ALBERT LEA.  THE STORM WAS MOVING WEST
  AT 10 MPH.

* SOME LOCATIONS AFFECTED
    CONGER
    ALDEN
    MANCHESTER
    FREEBORN

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

TIPTON

&

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 15, 8:12 PM CDTSevere Thunderstorm WarningMPXWashington48 min
Jun 15, 9:03 PM CDTSevere Thunderstorm WarningMPXChisago, Isanti47 min
Jun 16, 4:07 PM CDTSevere Thunderstorm WarningMPXRamsey33 min
Jun 16, 5:39 PM CDTSevere Thunderstorm WarningMPXRamsey31 min
Jun 16, 5:51 PM CDTSevere Thunderstorm WarningMPXAnoka34 min
Jun 16, 6:22 PM CDTSevere Thunderstorm WarningMPXScott33 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; radar from the NEXRAD Level II archive.