Alert archive / Minnesota / Tornado Warnings in 1998

Tornado Warning 57, NWS Twin Cities, MN

August 22, 1998Dakota County, Scott County, Minnesota

NWS Twin Cities, MN issued this tornado warning at Aug 22, 1998, 8:10 PM CDT for Dakota County, Scott County, Minnesota. It was in force for 30 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: Aug 22, 1998, 8:10 PM CDT (01:10 UTC)
Expired: Aug 22, 1998, 8:40 PM CDT
In force: 30 min
Issued by: NWS Twin Cities, MN
Area: Whole counties

Counties Dakota County, MN, Scott County, MN

What was reported inside it

Time	Report	Where	Remark
Aug 22, 8:14 PM CDT	Thunderstorm Wind 52	Savage, MN	Trees blown over.

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 watch it was issued in

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

Issued	Product	Office	Lasted
Aug 22, 7:30 PM CDT	Tornado Watch	SPC	6 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 1.2 hours before the alert went out and 32 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 2973 J/kg
Mixed-layer CIN: -7 J/kg
Mixed-layer LCL: 823 m above ground
0-6 km bulk shear: 40 kt
0-1 km storm-relative helicity: 255 m²/s²
0-3 km storm-relative helicity: 351 m²/s²
Significant tornado parameter: 4.3
Supercell composite: 21.4

Open this sounding in Storm Lab

The text

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

928 
WFUS1 KMSP 230112 RRA
TORMSP
MNC037-139-230140-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
810 PM CDT SAT AUG 22 1998

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

* TORNADO WARNING FOR...
  NORTHERN DAKOTA COUNTY IN EAST CENTRAL MINNESOTA
  NORTHERN SCOTT COUNTY IN EAST CENTRAL MINNESOTA

* UNTIL 840 PM CDT

* AT 807 PM CDT...LAW ENFORCEMENT REPORTED A TORNADO NEAR SAVAGE...
  ABOUT 30 MILES SOUTH OF MINNEAPOLIS.  THE STORM WAS MOVING
  EAST AT 25 MPH.

* SOME LOCATIONS AFFECTED
    SAVAGE
    PRIOR LAKE
    BURNSVILLE
    EAGAN

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

DWE


&

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 22, 7:30 PM CDT	Severe Thunderstorm Warning	MPX	Carver, Hennepin	65 min
Aug 22, 7:57 PM CDT	Severe Thunderstorm Warning	MPX	Dakota, Scott	63 min
Aug 22, 8:35 PM CDT	Severe Thunderstorm Warning	MPX	Hennepin, Ramsey, Washington	45 min
Aug 22, 8:35 PM CDT	Severe Thunderstorm Warning	MPX	Carver	45 min
Aug 22, 8:40 PM CDT	Tornado Warning	MPX	Dakota	65 min
Aug 22, 9:14 PM CDT	Flash Flood Warning	MPX	Carver, Dakota, Hennepin, Scott	2 hr
Aug 22, 9:19 PM CDT	Severe Thunderstorm Warning	MPX	Goodhue	51 min
Aug 22, 9:27 PM CDT	Severe Thunderstorm Warning	MPX	Dakota, Scott	63 min
Aug 22, 9:51 PM CDT	Flash Flood Warning	MPX	Scott	69 min
Aug 23, 3:15 AM CDT	Severe Thunderstorm Warning	MPX	Lac qui Parle	45 min
Aug 23, 3:33 AM CDT	Severe Thunderstorm Warning	MPX	Chippewa, Swift	42 min
Aug 23, 4:07 AM CDT	Severe Thunderstorm Warning	MPX	Kandiyohi	58 min
Aug 23, 4:10 AM CDT	Severe Thunderstorm Warning	MPX	Yellow Medicine	35 min
Aug 23, 4:14 AM CDT	Severe Thunderstorm Warning	MPX	Chippewa, Swift	16 min
Aug 23, 4:40 AM CDT	Severe Thunderstorm Warning	MPX	Meeker	60 min
Aug 23, 5:02 AM CDT	Severe Thunderstorm Warning	MPX	Wright	43 min

Nearby

Tornado Warnings in Minnesota, 1998 Every tornado warning in 1998 Tornadoes 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.