Alert archive / Minnesota / Tornado Warnings in 1998

Tornado Warning 13, NWS Duluth, MN

May 15, 1998Saint Louis County, Minnesota

NWS Duluth, MN issued this tornado warning at May 15, 1998, 7:42 PM CDT for Saint Louis County, Minnesota. It was in force for 33 min. 5 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
May 15, 1998, 7:42 PM CDT (00:42 UTC)
Expired
May 15, 1998, 8:15 PM CDT
In force
33 min
Issued by
NWS Duluth, MN
Area
Whole counties

County Saint Louis County, MN

What was reported inside it

TimeReportWhereRemark
May 15, 7:45 PM CDTThunderstorm Wind 50Twig, MN
May 15, 7:45 PM CDTHail 0.75Hibbing, MN
May 15, 8:00 PM CDTThunderstorm Wind 55Brimson, MN
May 15, 8:10 PM CDTThunderstorm Wind 52Eveleth, MN
May 15, 8:15 PM CDTThunderstorm Wind 52Markham, 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 watch it was issued in

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

IssuedProductOfficeLasted
May 15, 4:30 PM CDTTornado WatchSPC6 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 0.7 hours before the alert went out and 317 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 00:00Z on 1998-05-16Temperature 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 00:00Z on 1998-05-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 128 square meters per square second.1939587897Sfc1 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
1770 m above ground
0-6 km bulk shear
69 kt
0-1 km storm-relative helicity
128 m²/s²
0-3 km storm-relative helicity
105 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.

000 
TTAA00 KDLH 160041 RRA
TORDLH
MNC137-MNZ524-160115-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE DULUTH MN
742 PM CDT FRI MAY 15 1998

THE NATIONAL WEATHER SERVICE IN DULUTH HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHERN AND SOUTHEASTERN ST. LOUIS COUNTY INCLUDING ADJACENT
  COASTAL WATERS IN NORTHEASTERN MINNESOTA

* UNTIL 815 PM CDT

* AT 738 PM CDT...SKYWARN SPOTTERS INDICATED A TORNADO 4 MILES
  NORTH OF DULUTH... MOVING NORTH AT 35 MPH.

* THE TORNADO IS EXPECTED TO BE NEAR...
  ARNOLD BY 745 PM

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

SHIMON

The office that day

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

IssuedProductOfficeCountiesLasted
May 15, 7:00 PM CDTSevere Thunderstorm WarningDLHCarlton, Saint Louis60 min
May 15, 7:28 PM CDTTornado WarningDLHSaint Louis32 min
May 15, 7:32 PM CDTSevere Thunderstorm WarningDLHKoochiching63 min
May 15, 7:55 PM CDTSevere Thunderstorm WarningDLHItasca, Saint Louis60 min
May 15, 8:32 PM CDTSevere Thunderstorm WarningDLHCook, Lake, Saint Louis63 min
May 15, 9:27 PM CDTSevere Thunderstorm WarningDLHCook63 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.