Alert archive / Minnesota / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 220, NWS Twin Cities, MN

August 19, 20164 counties in Minnesota; Polk County, Saint Croix County, Wisconsin

NWS Twin Cities, MN issued this severe thunderstorm warning at Aug 19, 2016, 3:15 AM CDT for 4 counties in Minnesota; Polk County, Saint Croix County, Wisconsin. It was in force for 45 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
Aug 19, 2016, 3:15 AM CDT (08:15 UTC)
Expired
Aug 19, 2016, 4:00 AM CDT
In force
45 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, Washington County, MN, Polk County, WI, Saint Croix County, WI

The radar

The Minneapolis radar (KMPX), 99 km from the middle of the area, began a volume at 08:17 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, 8.3 hours before the alert went out and 101 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 00:00Z on 2016-08-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 185 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 00:00Z on 2016-08-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 184 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
185 J/kg
Mixed-layer CIN
-378 J/kg
Mixed-layer LCL
2171 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
184 m²/s²
0-3 km storm-relative helicity
216 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

738 
WUUS53 KMPX 190815
SVRMPX
MNC003-025-059-163-WIC095-109-190900-
/O.NEW.KMPX.SV.W.0220.160819T0815Z-160819T0900Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
315 AM CDT FRI AUG 19 2016

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHERN WASHINGTON COUNTY IN EAST CENTRAL MINNESOTA...
  ISANTI COUNTY IN EAST CENTRAL MINNESOTA...
  NORTHEASTERN ANOKA COUNTY IN EAST CENTRAL MINNESOTA...
  CHISAGO COUNTY IN EAST CENTRAL MINNESOTA...
  NORTHERN ST. CROIX COUNTY IN WEST CENTRAL WISCONSIN...
  POLK COUNTY IN NORTHWESTERN WISCONSIN...

* UNTIL 400 AM CDT

* AT 315 AM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
  EXTENDING FROM NEAR ST. FRANCIS TO NEAR WYOMING TO NEAR RIVER
  FALLS...MOVING NORTHEAST AT 45 MPH.

  HAZARD...60 MPH WIND GUSTS. 

  SOURCE...RADAR INDICATED. 

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

* SEVERE THUNDERSTORMS WILL BE NEAR...
  STACY AROUND 325 AM CDT. 
  CHISAGO CITY...LINDSTROM AND CENTER CITY AROUND 330 AM CDT. 
  RUSH CITY AROUND 355 AM CDT. 
  FREDERIC AND LUCK AROUND 400 AM CDT. 

OTHER LOCATIONS IMPACTED BY THESE SEVERE THUNDERSTORMS INCLUDE
BRANCH...OTISVILLE...WILD RIVER STATE
PARK...ATHENS...CUSHING...NYE... OSCEOLA AIRPORT...RUSH CITY
AIRPORT...DERONDA AND SPENCER BROOK.

THIS INCLUDES THE FOLLOWING HIGHWAYS...
 INTERSTATE 35 BETWEEN MILE MARKERS 133 AND 163.
 U.S. HIGHWAY 8 IN MINNESOTA BETWEEN MILE MARKERS 1 AND 5...AND
BETWEEN MILE MARKERS 7 AND 22.
 U.S. HIGHWAY 61 BETWEEN MILE MARKERS 161 AND 165.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4572 9242 4541 9215 4517 9216 4510 9213
      4516 9277 4532 9306 4552 9352 4557 9351
      4574 9320 4573 9285 4564 9288 4565 9253
      4573 9252
TIME...MOT...LOC 0815Z 227DEG 37KT 4540 9345 4533 9305 4490 9256 

HAIL...<.75IN
WIND...60MPH
 
$$

JPC
1 follow-up statement
304 
WWUS53 KMPX 190851
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
351 AM CDT FRI AUG 19 2016

MNC003-163-190900-
/O.CAN.KMPX.SV.W.0220.000000T0000Z-160819T0900Z/
WASHINGTON MN-ANOKA MN-
351 AM CDT FRI AUG 19 2016

...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN WASHINGTON AND
NORTHEASTERN ANOKA COUNTIES IS CANCELLED...

THE STORMS WHICH PROMPTED THE WARNING HAVE MOVED OUT OF THE WARNED
AREA. THEREFORE THE SEVERE THUNDERSTORM WARNING FOR NORTHERN
WASHINGTON AND NORTHEASTERN ANOKA HAS BEEN CANCELLED.

LAT...LON 4572 9242 4541 9215 4517 9216 4510 9213
      4515 9267 4523 9277 4530 9275 4530 9283
      4539 9292 4543 9317 4573 9320 4573 9285
      4565 9289 4564 9286 4565 9253 4573 9252
TIME...MOT...LOC 0850Z 226DEG 37KT 4564 9308 4557 9268 4514 9234 

$$

MNC025-059-WIC095-109-190900-
/O.CON.KMPX.SV.W.0220.000000T0000Z-160819T0900Z/
ISANTI MN-CHISAGO MN-ST. CROIX WI-POLK WI-
351 AM CDT FRI AUG 19 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 400 AM CDT
FOR EASTERN ISANTI...CHISAGO...NORTHERN ST. CROIX AND POLK
COUNTIES...

AT 350 AM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM NEAR HARRIS TO CUSHING TO CYLON...MOVING NORTHEAST 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...
  FREDERIC...LUCK AND CLEAR LAKE AROUND 400 AM CDT. 

OTHER LOCATIONS IMPACTED BY THESE SEVERE THUNDERSTORMS INCLUDE
BRANCH...OTISVILLE...WILD RIVER STATE PARK...CUSHING...NYE...OSCEOLA
AIRPORT...RUSH CITY AIRPORT...DERONDA...WANDEROOS AND STANCHFIELD.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

TO REPORT SEVERE WEATHER CONTACT YOUR NEAREST LAW ENFORCEMENT AGENCY.
THEY WILL SEND YOUR REPORT TO THE NATIONAL WEATHER SERVICE OFFICE IN
THE TWIN CITIES.

&&

LAT...LON 4572 9242 4541 9215 4517 9216 4510 9213
      4515 9267 4523 9277 4530 9275 4530 9283
      4539 9292 4543 9317 4573 9320 4573 9285
      4565 9289 4564 9286 4565 9253 4573 9252
TIME...MOT...LOC 0850Z 226DEG 37KT 4564 9308 4557 9268 4514 9234 

HAIL...<.75IN
WIND...60MPH
 
$$

JPC

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 18, 10:39 PM CDTSpecial Weather StatementMPXRice51 min
Aug 18, 11:08 PM CDTSpecial Weather StatementMPXYellow Medicine52 min
Aug 18, 11:32 PM CDTSpecial Weather StatementMPXGoodhue43 min
Aug 19, 12:48 AM CDTSpecial Weather StatementMPXBlue Earth, McLeod, Nicollet, Sibley57 min
Aug 19, 1:45 AM CDTSpecial Weather StatementMPXCarver, Le Sueur, McLeod, Rice, Scott, Steele and 1 more45 min
Aug 19, 1:58 AM CDTSevere Thunderstorm WarningMPXCarver, Hennepin, McLeod47 min
Aug 19, 2:21 AM CDTSevere Thunderstorm WarningMPXCarver, Hennepin, Wright24 min
Aug 19, 2:45 AM CDTSevere Thunderstorm WarningMPXAnoka, Hennepin, Isanti, Ramsey, Sherburne, Washington and 1 more60 min
Aug 19, 3:01 AM CDTSevere Thunderstorm WarningMPXWashington44 min
Aug 18, 11:46 PM CDTSevere Thunderstorm WarningMPXDunn, Pepin, Pierce27 min
Aug 19, 3:24 AM CDTSpecial Weather StatementMPXPepin, Pierce36 min
Aug 19, 3:38 AM CDTSevere Thunderstorm WarningMPXDunn, Pepin, Pierce, Saint Croix22 min
Aug 19, 4:02 AM CDTSevere Thunderstorm WarningMPXBarron, Chippewa, Dunn, Eau Claire, Pepin, Pierce and 3 more58 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2016Severe Thunderstorm Warnings in Wisconsin, 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.