Alert archive / Minnesota / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 202, NWS Twin Cities, MN

August 10, 20166 counties in Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Aug 10, 2016, 6:25 PM CDT for 6 counties in Minnesota. It was in force for 35 min. 1 report 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 10, 2016, 6:25 PM CDT (23:25 UTC)
Expired
Aug 10, 2016, 7:00 PM CDT
In force
35 min
Issued by
NWS Twin Cities, MN
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Anoka County, MN, Chisago County, MN, Isanti County, MN, Kanabec County, MN, Mille Lacs County, MN, Sherburne County, MN

The radar

The Minneapolis radar (KMPX), 94 km from the middle of the area, began a volume at 23:29 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 10, 7:08 PM CDTTSTM WND GST 511 Ne Mora, MNMESONET STATION MORA 1 ENE /JMRM5/.

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

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Aug 10, 4:20 PM CDTSevere Thunderstorm WatchSPC5 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 11.4 hours before the alert went out and 95 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 2016-08-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 537 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 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 2016-08-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 68 square meters per square second.193958Sfc1 km3 km6 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
537 J/kg
Mixed-layer CIN
-127 J/kg
Mixed-layer LCL
910 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
68 m²/s²
0-3 km storm-relative helicity
109 m²/s²
Significant tornado parameter
0.1
Supercell composite
0.4

Open this sounding in Storm Lab

The text

As transmitted.

038 
WUUS53 KMPX 102325
SVRMPX
MNC003-025-059-065-095-141-110000-
/O.NEW.KMPX.SV.W.0202.160810T2325Z-160811T0000Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
625 PM CDT WED AUG 10 2016

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EASTERN SHERBURNE COUNTY IN CENTRAL MINNESOTA...
  ISANTI COUNTY IN EAST CENTRAL MINNESOTA...
  SOUTHERN KANABEC COUNTY IN EAST CENTRAL MINNESOTA...
  NORTHERN ANOKA COUNTY IN EAST CENTRAL MINNESOTA...
  SOUTHEASTERN MILLE LACS COUNTY IN EAST CENTRAL MINNESOTA...
  WESTERN CHISAGO COUNTY IN EAST CENTRAL MINNESOTA...

* UNTIL 700 PM CDT

* AT 625 PM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
  EXTENDING FROM NEAR KNIFE LAKE TO DALBO TO DUELM...MOVING SOUTHEAST
  AT 45 MPH.

  HAZARD...60 MPH WIND GUSTS. 

  SOURCE...RADAR INDICATED. 

  IMPACT...EXPECT DAMAGE TO ROOFS...SIDING...AND TREES. 

* SEVERE THUNDERSTORMS WILL BE NEAR...
  MORA AROUND 630 PM CDT. 
  BRUNSWICK AND QUAMBA AROUND 635 PM CDT. 
  GRASSTON AROUND 640 PM CDT. 
  CAMBRIDGE...ISANTI AND ZIMMERMAN AROUND 650 PM CDT. 
  ELK RIVER...EAST BETHEL AND ST. FRANCIS AROUND 655 PM CDT. 
  RAMSEY...RUSH CITY AND STACY AROUND 700 PM CDT. 

OTHER LOCATIONS IMPACTED BY THESE SEVERE THUNDERSTORMS INCLUDE
STANCHFIELD...BRANCH...GRANDY...ATHENS...HARRIS...SPRING
LAKE...BETHEL...CEDAR AND KNIFE LAKE.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

TORRENTIAL RAINFALL IS OCCURRING WITH THESE STORMS...AND MAY LEAD TO
FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS.

&&

LAT...LON 4597 9313 4573 9314 4573 9285 4565 9289
      4560 9289 4556 9285 4535 9299 4525 9352
      4556 9384 4556 9376 4567 9375 4572 9353
      4605 9330
TIME...MOT...LOC 2325Z 313DEG 39KT 4594 9329 4568 9347 4557 9395 

HAIL...<.75IN
WIND...60MPH
 
$$
2 follow-up statements
466 
WWUS53 KMPX 102343
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
643 PM CDT WED AUG 10 2016

MNC003-025-059-065-095-141-110000-
/O.CON.KMPX.SV.W.0202.000000T0000Z-160811T0000Z/
SHERBURNE MN-ISANTI MN-KANABEC MN-ANOKA MN-MILLE LACS MN-CHISAGO MN-
643 PM CDT WED AUG 10 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 700 PM CDT
FOR EASTERN SHERBURNE...ISANTI...SOUTHERN KANABEC...NORTHERN ANOKA...
SOUTHEASTERN MILLE LACS AND WESTERN CHISAGO COUNTIES...

AT 643 PM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM NEAR GRASSTON TO CAMBRIDGE TO ORROCK...MOVING
SOUTHEAST AT 45 MPH.

HAZARD...60 MPH WIND GUSTS. 

SOURCE...RADAR INDICATED. 

IMPACT...EXPECT DAMAGE TO ROOFS...SIDING...AND TREES. 

THESE SEVERE STORMS WILL BE NEAR...  CAMBRIDGE AND ISANTI AROUND 650
PM CDT.   RAMSEY...EAST BETHEL...ST. FRANCIS...RUSH CITY AND STACY
AROUND 700   PM CDT. 

OTHER LOCATIONS IMPACTED BY THESE SEVERE THUNDERSTORMS INCLUDE
STANCHFIELD...BRANCH...GRANDY...ATHENS...HARRIS...SPRING
LAKE...BETHEL...CEDAR AND KNIFE LAKE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

TORRENTIAL RAINFALL IS OCCURRING WITH THESE STORMS...AND MAY LEAD TO
FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS.

&&

LAT...LON 4597 9313 4573 9314 4573 9285 4565 9289
      4560 9289 4556 9285 4535 9299 4525 9352
      4556 9384 4556 9376 4567 9375 4572 9353
      4605 9330
TIME...MOT...LOC 2343Z 313DEG 39KT 4582 9311 4556 9329 4545 9377 

HAIL...<.75IN
WIND...60MPH
 
$$
535 
WWUS53 KMPX 102355
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
655 PM CDT WED AUG 10 2016

MNC003-025-059-065-095-141-110004-
/O.EXP.KMPX.SV.W.0202.000000T0000Z-160811T0000Z/
SHERBURNE MN-ISANTI MN-KANABEC MN-ANOKA MN-MILLE LACS MN-CHISAGO MN-
655 PM CDT WED AUG 10 2016

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN SHERBURNE...ISANTI...
SOUTHERN KANABEC...NORTHERN ANOKA...SOUTHEASTERN MILLE LACS AND
WESTERN CHISAGO COUNTIES WILL EXPIRE AT 700 PM CDT...
    
THE STORMS WHICH PROMPTED THE WARNING HAVE MOVED OUT OF THE AREA.
THEREFORE THE WARNING WILL BE ALLOWED TO EXPIRE.  HOWEVER GUSTY
WINDS OF 40 TO 50 MPH AND HEAVY RAIN ARE STILL OCCURRING WITH THESE
THUNDERSTORMS.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL MIDNIGHT CDT FOR
CENTRAL AND EAST CENTRAL MINNESOTA...AND NORTHWESTERN WISCONSIN.

LAT...LON 4597 9313 4573 9314 4573 9285 4565 9289
      4560 9289 4556 9285 4535 9299 4525 9352
      4556 9384 4556 9376 4567 9375 4572 9353
      4605 9330
TIME...MOT...LOC 2353Z 313DEG 39KT 4582 9311 4556 9329 4545 9377 

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 10, 3:46 AM CDTSevere Thunderstorm WarningMPXStevens44 min
Aug 10, 4:06 AM CDTSevere Thunderstorm WarningMPXDouglas, Pope39 min
Aug 10, 4:28 AM CDTSevere Thunderstorm WarningMPXStevens, Swift32 min
Aug 10, 4:47 AM CDTSevere Thunderstorm WarningMPXDouglas, Pope, Stearns, Swift, Todd43 min
Aug 10, 5:03 AM CDTSpecial Weather StatementMPXLac qui Parle, Swift57 min
Aug 10, 5:33 AM CDTSpecial Weather StatementMPXMorrison, Stearns, Todd42 min
Aug 10, 11:00 AM CDTFlash Flood WatchMPXAnoka, Benton, Blue Earth, Brown, Carver, Chippewa and 36 more32 hr
Aug 10, 3:18 PM CDTSpecial Weather StatementMPXDouglas27 min
Aug 10, 3:42 PM CDTSpecial Weather StatementMPXKandiyohi33 min
Aug 10, 3:48 PM CDTSevere Thunderstorm WarningMPXKandiyohi42 min
Aug 10, 4:16 PM CDTSpecial Weather StatementMPXSwift29 min
Aug 10, 4:26 PM CDTSevere Thunderstorm WarningMPXChippewa, Lac qui Parle, Swift34 min
Aug 10, 4:30 PM CDTSpecial Weather StatementMPXMille Lacs60 min
Aug 10, 4:32 PM CDTSevere Thunderstorm WarningMPXKandiyohi43 min
Aug 10, 5:43 PM CDTSpecial Weather StatementMPXMille Lacs2 hr
Aug 10, 6:21 PM CDTSevere Thunderstorm WarningMPXKandiyohi39 min
Aug 10, 6:35 PM CDTSevere Thunderstorm WarningMPXLac qui Parle, Swift40 min
Aug 10, 6:58 PM CDTSpecial Weather StatementMPXAnoka, Chisago47 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2016Every severe thunderstorm warning 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.