Alert archive / Minnesota / Special Weather Statements in 2016

Special Weather Statement, NWS Grand Forks, ND

September 7, 2016Todd County, Minnesota

NWS Grand Forks, ND issued this special weather statement at Sep 7, 2016, 9:42 PM CDT for Todd County, Minnesota. It was in force for 18 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: Sep 7, 2016, 9:42 PM CDT (02:42 UTC)
Expired: Sep 7, 2016, 10:00 PM CDT
In force: 18 min
Issued by: NWS Grand Forks, ND

County Todd County, MN

The radar

The Minneapolis radar (KMPX), 204 km from the middle of the area, began a volume at 02:44 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

Minneapolis, MN (KMPX), launched 00:00Z, 2.7 hours before the alert went out and 202 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: 303 J/kg
Mixed-layer CIN: -39 J/kg
Mixed-layer LCL: 871 m above ground
0-6 km bulk shear: 59 kt
0-1 km storm-relative helicity: 83 m²/s²
0-3 km storm-relative helicity: 23 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 1.5

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 Grand Forks, ND wrote its last area forecast discussion before this special weather statement went out at Sep 7, 6:50 PM CDT, 2 hours 52 minutes earlier.

Area forecast discussion, Sep 7, 6:50 PM CDT, 2 hours 52 minutes before

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Hazardous weather outlook, Sep 7, 9:21 PM CDT, 21 minutes before

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In the hours before

Local storm report, Sep 7, 7:02 PM CDT, 2 hours 40 minutes before

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Special weather statement, Sep 7, 8:25 PM CDT, 1 hour 17 minutes before

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Local storm report, Sep 7, 8:28 PM CDT, 1 hour 14 minutes before

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Local storm report, Sep 7, 8:45 PM CDT, 57 minutes before

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Local storm report, Sep 7, 8:56 PM CDT, 46 minutes before

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Special weather statement, Sep 7, 9:42 PM CDT, 0 minutes before

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The office that day

Everything else NWS Grand Forks, ND issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Sep 7, 8:25 PM CDT	Special Weather Statement	FGF	Otter Tail, Wadena	50 min

Nearby

Special Weather Statements in Minnesota, 2016 Every special weather statement in 2016

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.