Alert archive / Minnesota / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 316, NWS Twin Cities, MN

September 19, 1998Meeker County, Wright County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Sep 19, 1998, 4:01 PM CDT for Meeker County, Wright County, Minnesota. It was in force for 44 min. 3 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 19, 1998, 4:01 PM CDT (21:01 UTC)
Expired: Sep 19, 1998, 4:45 PM CDT
In force: 44 min
Issued by: NWS Twin Cities, MN
Area: Whole counties

Counties Meeker County, MN, Wright County, MN

The radar

The Minneapolis radar (KMPX), 63 km from the middle of the area, began a volume at 21:02 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

Time	Report	Where	Remark
Sep 19, 4:40 PM CDT	Thunderstorm Wind 60	Howard Lake, MN	Trees and power lines down. Estimated windspeed.
Sep 19, 4:45 PM CDT	Thunderstorm Wind 61	Annandale, MN	Windows blown in.
Sep 19, 4:45 PM CDT	Hail 1	Annandale, 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, 9.0 hours before the alert went out and 61 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: 116 J/kg
Mixed-layer CIN: -293 J/kg
Mixed-layer LCL: 1302 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: 69 m²/s²
0-3 km storm-relative helicity: 78 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.

573 
WUUS1 KMSP 192102 RRA
SVRMSP
MNC093-171-192145-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
401 PM CDT SAT SEP 19 1998

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

* SEVERE THUNDERSTORM WARNING FOR...
  EASTERN MEEKER COUNTY IN CENTRAL MINNESOTA
  WRIGHT COUNTY IN CENTRAL MINNESOTA

* UNTIL 445 PM CDT

* AT 352 PM CDT...THE PUBLIC REPORTED A SEVERE STORM WITH
GOLFBALL SIZE HAIL NEAR DARWIN...ABOUT 10 MILES EAST OF
LITCHFIELD. THE STORM WAS MOVING NORTHEAST AT 35 MPH.

* SOME LOCATIONS AFFECTED
    KINGSTON
    ANNANDALE
    SOUTH HAVEN

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


 WH


&

The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 19, 4:31 PM CDT	Severe Thunderstorm Warning	MPX	Mille Lacs	29 min
Sep 19, 4:58 PM CDT	Severe Thunderstorm Warning	MPX	McLeod, Sibley	47 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 1998 Every 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.