Alert archive / Minnesota / Special Weather Statements in 2015

Special Weather Statement, NWS Twin Cities, MN

September 16, 2015Benton County, Minnesota

NWS Twin Cities, MN issued this special weather statement at Sep 16, 2015, 8:18 PM CDT for Benton County, Minnesota. It was in force for 27 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 16, 2015, 8:18 PM CDT (01:18 UTC)
Expired: Sep 16, 2015, 8:45 PM CDT
In force: 27 min
Issued by: NWS Twin Cities, MN

County Benton County, MN

The radar

The Minneapolis radar (KMPX), 97 km from the middle of the area, began a volume at 01:21 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, 1.3 hours before the alert went out and 96 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: 1342 J/kg
Mixed-layer CIN: -91 J/kg
Mixed-layer LCL: 1427 m above ground
0-6 km bulk shear: 19 kt
0-1 km storm-relative helicity: 172 m²/s²
0-3 km storm-relative helicity: 354 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.

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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 16, 7:10 PM CDT, 1 hour 8 minutes earlier.

Area forecast discussion, Sep 16, 7:10 PM CDT, 1 hour 8 minutes before

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Hazardous weather outlook, Sep 16, 3:40 PM CDT, 4 hours 38 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
340 PM CDT WED SEP 16 2015

MNZ041>045-047>070-073>078-082>085-091>093-WIZ014>016-023>028-
172045-
DOUGLAS-TODD-MORRISON-MILLE LACS-KANABEC-STEVENS-POPE-STEARNS-
BENTON-SHERBURNE-ISANTI-CHISAGO-LAC QUI PARLE-SWIFT-CHIPPEWA-
KANDIYOHI-MEEKER-WRIGHT-HENNEPIN-ANOKA-RAMSEY-WASHINGTON-
YELLOW MEDICINE-RENVILLE-MCLEOD-SIBLEY-CARVER-SCOTT-DAKOTA-
REDWOOD-BROWN-NICOLLET-LE SUEUR-RICE-GOODHUE-WATONWAN-BLUE EARTH-
WASECA-STEELE-MARTIN-FARIBAULT-FREEBORN-POLK-BARRON-RUSK-
ST. CROIX-PIERCE-DUNN-PEPIN-EAU CLAIRE-
340 PM CDT WED SEP 16 2015

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL AND
SOUTHERN MINNESOTA... AND WEST CENTRAL WISCONSIN.

.DAY ONE...TONIGHT

THUNDERSTORMS ARE POSSIBLE TONIGHT. WIDESPREAD SEVERE WEATHER IS
NOT EXPECTED...BUT THERE COULD BE A COUPLE STRONG STORMS THAT
PRODUCE GUSTY WINDS OR HAIL.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

MORE WIDESPREAD THUNDERSTORMS ARE EXPECTED THURSDAY AFTERNOON
INTO THURSDAY NIGHT. A FEW STRONG TO SEVERE STORMS WILL BE
POSSIBLE. ISOLATED LARGE HAIL AND DAMAGING WINDS ARE POSSIBLE
WITH THE ACTIVITY THURSDAY AFTERNOON.

.SPOTTER INFORMATION STATEMENT...

SKYWARN SPOTTER ACTIVATION WILL NOT BE NEEDED THROUGH
TONIGHT...BUT MAY BE NEEDED THURSDAY AFTERNOON.

JLT

In the hours before

Special weather statement, Sep 16, 8:18 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 17, 4:15 AM CDT	Severe Thunderstorm Warning	MPX	Anoka, Hennepin, Ramsey	45 min
Sep 17, 6:27 AM CDT	Special Weather Statement	MPX	Ramsey	63 min
Sep 17, 6:38 AM CDT	Flash Flood Warning	MPX	Dakota, Ramsey, Washington	2 hr
Sep 17, 7:31 AM CDT	Special Weather Statement	MPX	Washington	59 min
Sep 17, 10:06 AM CDT	Special Weather Statement	MPX	Dakota	54 min
Sep 17, 11:05 AM CDT	Special Weather Statement	MPX	Ramsey	40 min
Sep 17, 11:59 AM CDT	Special Weather Statement	MPX	Carver	46 min
Sep 17, 12:41 PM CDT	Special Weather Statement	MPX	Hennepin, Ramsey	49 min
Sep 17, 3:26 PM CDT	Severe Thunderstorm Warning	MPX	McLeod	33 min
Sep 17, 3:43 PM CDT	Severe Thunderstorm Warning	MPX	Dakota, Rice	33 min
Sep 17, 4:01 PM CDT	Special Weather Statement	MPX	Carver	29 min
Sep 17, 3:44 AM CDT	Special Weather Statement	MPX	Barron	46 min
Sep 17, 7:41 AM CDT	Flash Flood Warning	MPX	Barron, Polk	3 hr
Sep 17, 8:13 AM CDT	Special Weather Statement	MPX	Barron, Dunn	62 min
Sep 17, 9:02 AM CDT	Special Weather Statement	MPX	Dunn, Rusk	58 min

Nearby

Special Weather Statements in Minnesota, 2015 Every special weather statement in 2015

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.