Alert archive / Minnesota / Special Weather Statements in 2015

Special Weather Statement, NWS Twin Cities, MN

June 29, 2015Hennepin County, Minnesota

NWS Twin Cities, MN issued this special weather statement at Jun 29, 2015, 3:12 PM CDT for Hennepin County, Minnesota. It was in force for 33 min. 11 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
Jun 29, 2015, 3:12 PM CDT (20:12 UTC)
Expired
Jun 29, 2015, 3:45 PM CDT
In force
33 min
Issued by
NWS Twin Cities, MN

County Hennepin County, MN

The radar

The Minneapolis radar (KMPX), 43 km from the middle of the area, began a volume at 20:11 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
Jun 29, 3:15 PM CDTHAIL 1Otsego, MNHAIL OCCURRED FOR 10 MINUTES. REPORTED VIA FACEBOOK.
Jun 29, 3:20 PM CDTHAIL 0.752 Nne Rogers, MN
Jun 29, 3:20 PM CDTHAIL 1.753 Ssw Elk River, MN
Jun 29, 3:20 PM CDTHAIL 1.754 Ssw Elk River, MN
Jun 29, 3:33 PM CDTHAIL 1Rogers, MNREPORTED VIA TWITTER.
Jun 29, 3:45 PM CDTHAIL 0.5Maple Grove, MNREPORTED VIA TWITTER.
Jun 29, 3:50 PM CDTHAIL 0.75Elk River, MNREPORTED VIA TWITTER.
Jun 29, 3:50 PM CDTHAIL 1.25Maple Grove, MNREPORTED VIA TWITTER.
Jun 29, 3:53 PM CDTHAIL 1.25Maple Grove, MNALSO REPORTED 3 TO 4 INCH DIAMETER BRANCHES DOWN. HAIL AND BRANCHES DOWN NEAR DALLAS AND BERKSHIRE ROADS.
Jun 29, 3:54 PM CDTHAIL 0.88Maple Grove, MN
Jun 29, 3:55 PM CDTHAIL 25 Nnw Plymouth, MN

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, 8.2 hours before the alert went out and 43 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 2015-06-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 160 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 2015-06-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 55 square meters per square second.193958Sfc1 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
160 J/kg
Mixed-layer CIN
-46 J/kg
Mixed-layer LCL
1297 m above ground
0-6 km bulk shear
41 kt
0-1 km storm-relative helicity
55 m²/s²
0-3 km storm-relative helicity
86 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.4

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

227 
WWUS83 KMPX 292012
SPSMPX

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
312 PM CDT MON JUN 29 2015
 
MNZ051-059-060-292045-
SHERBURNE-WRIGHT-HENNEPIN-
312 PM CDT MON JUN 29 2015

...A STRONG THUNDERSTORM WILL AFFECT NORTHWESTERN HENNEPIN...EAST
CENTRAL WRIGHT AND SOUTHEASTERN SHERBURNE COUNTIES...

AT 312 PM CDT...A STRONG THUNDERSTORM WAS OVER OTSEGO...OR 15 MILES
NORTHEAST OF BUFFALO...MOVING SOUTH AT 30 MPH.

WINDS IN EXCESS OF 40 MPH AND DIME SIZE HAIL ARE POSSIBLE WITH THIS
STORM.

LOCATIONS IMPACTED INCLUDE...
BROOKLYN PARK...PLYMOUTH...MAPLE GROVE...RAMSEY...ELK RIVER...ST.
MICHAEL...OTSEGO...ROGERS...ALBERTVILLE...CORCORAN...MEDINA AND
INDEPENDENCE.

THIS INCLUDES INTERSTATE 94 IN MINNESOTA BETWEEN MILE MARKERS 202 AND
219.
 
THIS STORM MAY INTENSIFY...SO BE CERTAIN TO MONITOR LOCAL RADIO AND
TV STATIONS...AS WELL AS LOCAL CABLE TV OUTLETS...FOR ADDITIONAL
INFORMATION AND POSSIBLE WARNINGS FROM THE NATIONAL WEATHER SERVICE.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM CDT FOR
EAST CENTRAL MINNESOTA.

LAT...LON 4529 9351 4525 9352 4523 9347 4506 9338
      4504 9366 4534 9366 4535 9354
TIME...MOT...LOC 2012Z 346DEG 26KT 4529 9359 
$$

BORGHOFF

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 29, 1:19 PM CDTSpecial Weather StatementMPXMille Lacs26 min
Jun 29, 3:19 PM CDTSevere Thunderstorm WarningMPXHennepin, Wright56 min
Jun 29, 3:56 PM CDTSevere Thunderstorm WarningMPXHennepin64 min
Jun 29, 4:28 PM CDTSevere Thunderstorm WarningMPXDakota, Scott47 min
Jun 29, 5:00 PM CDTSevere Thunderstorm WarningMPXChisago, Isanti60 min
Jun 29, 5:32 PM CDTSevere Thunderstorm WarningMPXAnoka, Chisago, Washington58 min
Jun 29, 6:02 PM CDTSevere Thunderstorm WarningMPXAnoka, Isanti43 min
Jun 29, 6:28 PM CDTSevere Thunderstorm WarningMPXAnoka, Ramsey, Washington47 min
Jun 29, 6:48 PM CDTSevere Thunderstorm WarningMPXAnoka, Ramsey42 min
Jun 29, 3:13 AM CDTDense Fog AdvisoryMPXBarron, Chippewa, Dunn, Eau Claire, Pepin, Pierce and 3 more6 hr
Jun 29, 2:52 PM CDTSpecial Weather StatementMPXChippewa38 min
Jun 29, 3:24 PM CDTSpecial Weather StatementMPXBarron51 min
Jun 29, 3:33 PM CDTSpecial Weather StatementMPXEau Claire27 min
Jun 29, 3:35 PM CDTSpecial Weather StatementMPXBarron25 min
Jun 29, 4:39 PM CDTSevere Thunderstorm WarningMPXDunn, Eau Claire25 min

Nearby

Special Weather Statements in Minnesota, 2015Every 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.