Alert archive / Minnesota / Special Weather Statements in 2016

Special Weather Statement, NWS Twin Cities, MN

August 4, 20168 counties in Minnesota

NWS Twin Cities, MN issued this special weather statement at Aug 4, 2016, 7:31 AM CDT for 8 counties in Minnesota. It was in force for 59 min. 8 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Aug 4, 2016, 7:31 AM CDT (12:31 UTC)
Expired
Aug 4, 2016, 8:30 AM CDT
In force
59 min
Issued by
NWS Twin Cities, MN

Counties Carver County, MN, Dakota County, MN, Hennepin County, MN, Le Sueur County, MN, Ramsey County, MN, Rice County, MN, Scott County, MN, Wright County, MN

The radar

The Minneapolis radar (KMPX), 18 km from the middle of the area, began a volume at 12:34 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.

What was reported inside it

TimeReportWhereRemark
Aug 4, 7:32 AM CDTTSTM WND DMGWinsted, MNTREES DOWN. POWER OUTAGE. TIME ESTIMATED FROM RADAR. .
Aug 4, 7:36 AM CDTTSTM WND GST 58Winsted, MN.
Aug 4, 7:40 AM CDTTSTM WND DMGWinsted, MNLARGE TREE TOPPLED. REPORT VIA SOCIAL MEDIA.
Aug 4, 7:55 AM CDTTSTM WND DMG3 Nne Montrose, MNLATE REPORT. NUMEROUS 2 FOOT DIAMETER TREES DOWN.
Aug 4, 8:00 AM CDTTSTM WND DMGDelano, MNSEVERAL LARGE OAK TREES DOWN, INCLUDING SOME BROKEN OFF 10-15 FEET OFF THE GROUND.
Aug 4, 8:05 AM CDTTSTM WND DMG1 S Greenfield, MNTEN INCH DIAMETER TREE DOWN JUST SOUTH OF CR 50.
Aug 4, 8:07 AM CDTTSTM WND DMGMaple Plain, MNTWO INCH DIAMETER TREE LIMBS DOWN. TIME ESTIMATED FROM RADAR.
Aug 4, 8:30 AM CDTTSTM WND DMGMaple Grove, MNTREE LIMBS APPROXIMATELY 2-5 INCHES IN DIAMETER SEVERED. SOME SIDING PEELED OFF SHED. DAMAGE OCCURRED ON EAST FISH LAKE ROAD.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 0.5 hours before the alert went out and 15 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 2016-08-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1323 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 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 2016-08-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 214 square meters per square second.19395878Sfc1 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
1323 J/kg
Mixed-layer CIN
-94 J/kg
Mixed-layer LCL
839 m above ground
0-6 km bulk shear
41 kt
0-1 km storm-relative helicity
214 m²/s²
0-3 km storm-relative helicity
158 m²/s²
Significant tornado parameter
0.7
Supercell composite
8.2

Open this sounding in Storm Lab

The text

As transmitted.

017 
WWUS83 KMPX 041231
SPSMPX

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
731 AM CDT THU AUG 4 2016

MNZ058>063-067>070-075>077-041330-
ANOKA-CARVER-DAKOTA-WRIGHT-MEEKER-SCOTT-SIBLEY-WASHINGTON-NICOLLET-
HENNEPIN-RICE-LE SUEUR-RAMSEY-
731 AM CDT THU AUG 4 2016

...A LINE OF STRONG THUNDERSTORMS WILL AFFECT CARVER...WESTERN
DAKOTA...SOUTHERN ANOKA...SOUTHWESTERN WASHINGTON...HENNEPIN...
EASTERN SIBLEY...WRIGHT...EAST CENTRAL MEEKER...SCOTT...NORTHEASTERN
NICOLLET...NORTHWESTERN RICE...RAMSEY AND LE SUEUR COUNTIES...

AT 731 AM CDT...RADAR INDICATED STRONG THUNDERSTORMS WERE LOCATED
ALONG A LINE EXTENDING FROM NEAR DASSEL TO NEAR WINSTED TO MAYER TO
NEAR WACONIA TO NEAR BELLE PLAINE TO NEAR NORSELAND. MOVEMENT WAS
EAST AT 40 MPH.

WINDS IN EXCESS OF 40 MPH ARE POSSIBLE WITH THESE STORMS.

LOCATIONS IMPACTED INCLUDE...
MINNEAPOLIS...ST. PAUL...FARIBAULT...NORTHFIELD...BUFFALO...
BLOOMINGTON...BROOKLYN PARK...PLYMOUTH...EAGAN...WOODBURY...
MAPLE GROVE AND COON RAPIDS.

THIS INCLUDES THE FOLLOWING HIGHWAYS...
 INTERSTATE 35 BETWEEN MILE MARKERS 58 AND 88.
 INTERSTATE 94 IN MINNESOTA BETWEEN MILE MARKERS 199 AND 250.
 U.S. HIGHWAY 10 IN MINNESOTA BETWEEN MILE MARKERS 223 AND 240.

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

LAT...LON 4436 9415 4464 9397 4479 9394 4490 9398
      4492 9401 4497 9401 4497 9412 4509 9447
      4528 9381 4521 9336 4512 9299 4491 9292
      4430 9326
TIME...MOT...LOC 1231Z 263DEG 36KT 4508 9427 4501 9407 4491 9388 4481
9384 4465 9386 4444 9400

$$

SPD

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 4, 1:37 AM CDTSpecial Weather StatementMPXDouglas, Pope, Stevens53 min
Aug 4, 2:08 AM CDTSpecial Weather StatementMPXTodd67 min
Aug 4, 2:33 AM CDTSpecial Weather StatementMPXMorrison57 min
Aug 4, 2:40 AM CDTSevere Thunderstorm WarningMPXMorrison, Todd50 min
Aug 4, 3:23 AM CDTSpecial Weather StatementMPXMille Lacs52 min
Aug 4, 3:46 AM CDTSevere Thunderstorm WarningMPXKanabec, Mille Lacs44 min
Aug 4, 5:18 AM CDTSpecial Weather StatementMPXYellow Medicine42 min
Aug 4, 5:34 AM CDTSpecial Weather StatementMPXWright41 min
Aug 4, 5:49 AM CDTSpecial Weather StatementMPXYellow Medicine56 min
Aug 4, 6:02 AM CDTSevere Thunderstorm WarningMPXHennepin, Wright28 min
Aug 4, 6:10 AM CDTSevere Thunderstorm WarningMPXBrown, Redwood, Renville, Yellow Medicine50 min
Aug 4, 6:52 AM CDTSpecial Weather StatementMPXCarver, Hennepin, Ramsey, Washington53 min
Aug 4, 7:52 AM CDTSevere Thunderstorm WarningMPXCarver, Hennepin, Wright26 min
Aug 4, 8:18 AM CDTSpecial Weather StatementMPXAnoka27 min
Aug 4, 8:35 AM CDTSpecial Weather StatementMPXChisago25 min
Aug 4, 12:53 PM CDTSevere Thunderstorm WarningMPXSteele22 min
Aug 4, 9:01 AM CDTSpecial Weather StatementMPXPierce29 min
Aug 4, 9:22 AM CDTSpecial Weather StatementMPXPepin23 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.