Alert archive / Minnesota / Special Weather Statements in 2016

Special Weather Statement, NWS Twin Cities, MN

October 17, 2016Hennepin County, Minnesota

NWS Twin Cities, MN issued this special weather statement at Oct 17, 2016, 5:00 PM CDT for Hennepin County, Minnesota. It was in force for 30 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
Oct 17, 2016, 5:00 PM CDT (22:00 UTC)
Expired
Oct 17, 2016, 5:30 PM CDT
In force
30 min
Issued by
NWS Twin Cities, MN

County Hennepin County, MN

The radar

The Minneapolis radar (KMPX), 5 km from the middle of the area, began a volume at 22:00 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 12:00Z, 10.0 hours before the alert went out and 8 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-pSkew-T log-p diagram, Minneapolis, MN at 12:00Z on 2016-10-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 67 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Minneapolis, MN at 12:00Z on 2016-10-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -53 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
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
67 J/kg
Mixed-layer CIN
-360 J/kg
Mixed-layer LCL
651 m above ground
0-6 km bulk shear
53 kt
0-1 km storm-relative helicity
-53 m²/s²
0-3 km storm-relative helicity
74 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

407 
WWUS83 KMPX 172200
SPSMPX

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
500 PM CDT MON OCT 17 2016

MNZ060-068-172230-
CARVER-HENNEPIN-
500 PM CDT MON OCT 17 2016

...A STRONG THUNDERSTORM WILL AFFECT EAST CENTRAL CARVER AND
SOUTHEASTERN HENNEPIN COUNTIES THROUGH 530 PM CDT...

AT 459 PM CDT...A STRONG THUNDERSTORM WAS LOCATED OVER CHASKA...OR 20
MILES SOUTHWEST OF MINNEAPOLIS...MOVING NORTHEAST AT 50 MPH.

WINDS IN EXCESS OF 30 MPH AND HALF INCH HAIL ARE POSSIBLE WITH THIS
STORM.

LOCATIONS IMPACTED INCLUDE...
MINNEAPOLIS...BLOOMINGTON...PLYMOUTH...EDEN PRAIRIE...MINNETONKA...
EDINA...ST. LOUIS PARK...SHAKOPEE...RICHFIELD...CHASKA...
CHANHASSEN AND GOLDEN VALLEY.

TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY CAUSE
LOCALIZED FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.

FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM.
LIGHTNING CAN STRIKE 10 MILES AWAY FROM A THUNDERSTORM. SEEK A SAFE
SHELTER INSIDE A BUILDING OR VEHICLE.

LAT...LON 4480 9376 4507 9337 4488 9318 4486 9320
      4481 9342 4480 9357 4475 9362 4474 9368
TIME...MOT...LOC 2159Z 235DEG 42KT 4481 9363 

$$

JPC

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 17, 5:31 AM CDTDense Fog AdvisoryMPXBlue Earth, Brown, Chippewa, Faribault, Freeborn, Kandiyohi and 15 more5 hr
Oct 17, 5:22 PM CDTSpecial Weather StatementMPXWashington38 min
Oct 17, 5:42 PM CDTSevere Thunderstorm WarningMPXWashington33 min
Oct 17, 2:30 AM CDTSpecial Weather StatementMPXRusk15 min
Oct 17, 4:42 PM CDTSpecial Weather StatementMPXRusk63 min
Oct 17, 5:59 PM CDTSpecial Weather StatementMPXBarron31 min
Oct 17, 6:08 PM CDTSevere Thunderstorm WarningMPXDunn, Pepin, Pierce, Saint Croix52 min
Oct 17, 6:38 PM CDTSpecial Weather StatementMPXRusk37 min

Nearby

Special Weather Statements in Minnesota, 2016Every 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.