Alert archive / Minnesota / Special Weather Statements in 2019

Special Weather Statement, NWS Twin Cities, MN

September 29, 2019Anoka County, Chisago County, Minnesota

NWS Twin Cities, MN issued this special weather statement at Sep 29, 2019, 11:21 PM CDT for Anoka County, Chisago County, Minnesota. It was in force for 84 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 29, 2019, 11:21 PM CDT (04:21 UTC)
Expired: Sep 30, 2019, 12:45 AM CDT
In force: 84 min
Issued by: NWS Twin Cities, MN

Counties Anoka County, MN, Chisago County, MN

The radar

The Minneapolis radar (KMPX), 58 km from the middle of the area, began a volume at 04:22 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

Green Bay/Straub, WI (KGRB), launched 00:00Z, 4.4 hours before the alert went out and 407 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 599 m above ground
0-6 km bulk shear: 27 kt
0-1 km storm-relative helicity: 153 m²/s²
0-3 km storm-relative helicity: 247 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

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 Twin Cities, MN wrote its last area forecast discussion before this special weather statement went out at Sep 29, 8:06 PM CDT, 3 hours 15 minutes earlier.

Area forecast discussion, Sep 29, 8:06 PM CDT, 3 hours 15 minutes before

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Hazardous weather outlook, Sep 29, 6:38 PM CDT, 4 hours 43 minutes before

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In the hours before

Special weather statement, Sep 29, 9:41 PM CDT, 1 hour 40 minutes before

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Special weather statement, Sep 29, 11:21 PM CDT, 0 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 29, 9:41 PM CDT	Special Weather Statement	MPX	McLeod	49 min
Sep 30, 2:42 AM CDT	Special Weather Statement	MPX	Mille Lacs	63 min
Sep 30, 5:27 AM CDT	Special Weather Statement	MPX	Benton, Morrison	63 min
Sep 30, 6:36 AM CDT	Special Weather Statement	MPX	Chisago, Isanti, Kanabec	54 min
Sep 30, 3:04 PM CDT	Flash Flood Watch	MPX	Faribault, Freeborn, Steele	28 hr
Sep 30, 6:53 PM CDT	Special Weather Statement	MPX	Anoka, Carver, Hennepin	52 min
Sep 30, 12:31 AM CDT	Special Weather Statement	MPX	Barron, Polk	59 min

Nearby

Special Weather Statements in Minnesota, 2019 Every special weather statement in 2019

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.