Alert archive / Minnesota / Special Weather Statements in 2018

Special Weather Statement, NWS Duluth, MN

August 5, 2018Koochiching County, Minnesota

NWS Duluth, MN issued this special weather statement at Aug 5, 2018, 12:13 AM CDT for Koochiching 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 outline as issued.

The facts

Issued: Aug 5, 2018, 12:13 AM CDT (05:13 UTC)
Expired: Aug 5, 2018, 12:45 AM CDT
In force: 32 min
Issued by: NWS Duluth, MN

County Koochiching County, MN

The radar

The Duluth radar (KDLH), 220 km from the middle of the area, began a volume at 05:15 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

International Fa, MN (KINL), launched 00:00Z, 5.2 hours before the alert went out and 31 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: 201 J/kg
Mixed-layer CIN: -148 J/kg
Mixed-layer LCL: 896 m above ground
0-6 km bulk shear: 45 kt
0-1 km storm-relative helicity: -9 m²/s²
0-3 km storm-relative helicity: 6 m²/s²
Significant tornado parameter: -0.0
Supercell composite: -0.2

Open this sounding in Storm Lab

The text

As transmitted.

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Aug 4, 6:47 PM CDT, 5 hours 26 minutes earlier.

Area forecast discussion, Aug 4, 6:47 PM CDT, 5 hours 26 minutes before

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Hazardous weather outlook, Aug 4, 3:37 PM CDT, 8 hours 36 minutes before

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In the hours before

Special weather statement, Aug 4, 6:30 PM CDT, 5 hours 43 minutes before

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Special weather statement, Aug 4, 7:09 PM CDT, 5 hours 4 minutes before

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Special weather statement, Aug 4, 7:47 PM CDT, 4 hours 26 minutes before

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Special weather statement, Aug 4, 9:03 PM CDT, 3 hours 10 minutes before

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Special weather statement, Aug 4, 11:49 PM CDT, 24 minutes before

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Special weather statement, Aug 5, 12:13 AM CDT, 0 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
Aug 4, 7:09 PM CDT	Special Weather Statement	DLH		36 min
Aug 4, 7:47 PM CDT	Special Weather Statement	DLH		28 min
Aug 4, 9:03 PM CDT	Special Weather Statement	DLH		27 min
Aug 4, 11:49 PM CDT	Special Weather Statement	DLH	Koochiching	26 min
Aug 5, 12:36 AM CDT	Special Weather Statement	DLH	Koochiching	24 min
Aug 5, 1:30 AM CDT	Special Weather Statement	DLH	Koochiching	30 min
Aug 5, 3:54 PM CDT	Special Weather Statement	DLH	Lake	36 min
Aug 5, 4:32 PM CDT	Special Weather Statement	DLH	Lake	28 min
Aug 5, 5:01 PM CDT	Special Weather Statement	DLH	Cook	14 min
Aug 5, 5:21 PM CDT	Special Weather Statement	DLH	Cook	9 min
Aug 5, 5:32 PM CDT	Special Weather Statement	DLH	Cook	13 min
Aug 5, 3:41 PM CDT	Special Weather Statement	DLH	Sawyer	34 min
Aug 5, 3:54 PM CDT	Severe Thunderstorm Warning	DLH	Ashland, Price, Sawyer	51 min
Aug 5, 4:43 PM CDT	Severe Thunderstorm Warning	DLH	Price	25 min

Nearby

Special Weather Statements in Minnesota, 2018 Every special weather statement in 2018

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.