Alert archive / Minnesota / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 45, NWS Duluth, MN

June 18, 2001Pine County, Minnesota; Burnett County, Wisconsin

NWS Duluth, MN issued this severe thunderstorm warning at Jun 18, 2001, 4:16 AM CDT for Pine County, Minnesota; Burnett County, Wisconsin. It was in force for 59 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: Jun 18, 2001, 4:16 AM CDT (09:16 UTC)
Expired: Jun 18, 2001, 5:15 AM CDT
In force: 59 min
Issued by: NWS Duluth, MN
Area: Whole counties

Counties Pine County, MN, Burnett County, WI

The radar

The Duluth radar (KDLH), 98 km from the middle of the area, began a volume at 09:20 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
Jun 18, 4:50 AM CDT	Hail 0.75	Webster, WI
Jun 18, 4:55 AM CDT	Hail 1.75	Webster, WI
Jun 18, 5:10 AM CDT	Hail 1.75	Webster, WI

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 00:00Z, 9.3 hours before the alert went out and 151 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: 38 J/kg
Mixed-layer CIN: -195 J/kg
Mixed-layer LCL: 1536 m above ground
0-6 km bulk shear: 65 kt
0-1 km storm-relative helicity: 116 m²/s²
0-3 km storm-relative helicity: 289 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Duluth, MN wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 17, 2:35 PM CDT, 13 hours 41 minutes earlier.

Area forecast discussion, Jun 17, 2:35 PM CDT, 13 hours 41 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 18, 3:42 AM CDT	Severe Thunderstorm Warning	DLH	Pine	33 min
Jun 18, 5:47 AM CDT	Severe Thunderstorm Warning	DLH	Pine	28 min
Jun 18, 5:25 AM CDT	Severe Thunderstorm Warning	DLH	Washburn	65 min
Jun 18, 6:05 AM CDT	Severe Thunderstorm Warning	DLH	Burnett	25 min
Jun 18, 7:21 AM CDT	Severe Thunderstorm Warning	DLH	Sawyer	54 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2001 Severe Thunderstorm Warnings in Wisconsin, 2001 Every severe thunderstorm warning in 2001

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.