Alert archive / Minnesota / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 186, NWS Twin Cities, MN

July 27, 2016Isanti County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Jul 27, 2016, 12:54 PM CDT for Isanti County, Minnesota. It was in force for 51 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: Jul 27, 2016, 12:54 PM CDT (17:54 UTC)
Expired: Jul 27, 2016, 1:45 PM CDT
In force: 51 min
Issued by: NWS Twin Cities, MN
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Isanti County, MN

The radar

The Minneapolis radar (KMPX), 89 km from the middle of the area, began a volume at 17:53 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, 5.9 hours before the alert went out and 89 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 889 J/kg
Mixed-layer CIN: -75 J/kg
Mixed-layer LCL: 1057 m above ground
0-6 km bulk shear: 18 kt
0-1 km storm-relative helicity: 26 m²/s²
0-3 km storm-relative helicity: 58 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

576 
WUUS53 KMPX 271754
SVRMPX
MNC059-271845-
/O.NEW.KMPX.SV.W.0186.160727T1754Z-160727T1845Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1254 PM CDT WED JUL 27 2016

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHERN ISANTI COUNTY IN EAST CENTRAL MINNESOTA...

* UNTIL 145 PM CDT

* AT 1254 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR CAMBRIDGE
  AIRPORT...OR 8 MILES NORTHWEST OF CAMBRIDGE...MOVING EAST AT 30
  MPH.

  HAZARD...60 MPH WIND GUSTS AND QUARTER SIZE HAIL. 

  SOURCE...RADAR INDICATED. 

  IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT WIND DAMAGE 
           TO ROOFS...SIDING...AND TREES. 

* THIS SEVERE THUNDERSTORM WILL REMAIN OVER MAINLY RURAL AREAS OF
  NORTHERN ISANTI COUNTY...INCLUDING THE FOLLOWING LOCATIONS:
  STANCHFIELD...DALBO...CAMBRIDGE AIRPORT AND GRANDY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4556 9314 4555 9309 4554 9309 4552 9351
      4569 9350 4574 9329 4573 9314
TIME...MOT...LOC 1754Z 271DEG 24KT 4562 9336 

HAIL...1.00IN
WIND...60MPH
 
$$

JRB

4 follow-up statements

877 
WWUS53 KMPX 271807
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
107 PM CDT WED JUL 27 2016

MNC059-271845-
/O.CON.KMPX.SV.W.0186.000000T0000Z-160727T1845Z/
ISANTI MN-
107 PM CDT WED JUL 27 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 145 PM CDT
FOR NORTHERN ISANTI COUNTY...

AT 107 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR CAMBRIDGE
AIRPORT...OR NEAR CAMBRIDGE...MOVING EAST AT 25 MPH.

HAZARD...60 MPH WIND GUSTS AND QUARTER SIZE HAIL. 

SOURCE...RADAR INDICATED. 

IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT WIND DAMAGE TO 
         ROOFS...SIDING...AND TREES. 

LOCATIONS IMPACTED INCLUDE...
CAMBRIDGE...SPENCER BROOK...STANCHFIELD...DALBO...
CAMBRIDGE AIRPORT AND GRANDY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4556 9314 4555 9309 4554 9309 4552 9349
      4561 9345 4570 9346 4574 9329 4573 9314
TIME...MOT...LOC 1807Z 270DEG 23KT 4562 9326 

HAIL...1.00IN
WIND...60MPH
 
$$

JRB

427 
WWUS53 KMPX 271823
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
123 PM CDT WED JUL 27 2016

MNC059-271845-
/O.CON.KMPX.SV.W.0186.000000T0000Z-160727T1845Z/
ISANTI MN-
123 PM CDT WED JUL 27 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 145 PM CDT
FOR NORTHWESTERN ISANTI COUNTY...

AT 122 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED OVER GRANDY...OR 7
MILES NORTHEAST OF CAMBRIDGE...MOVING EAST AT 25 MPH.

HAZARD...60 MPH WIND GUSTS AND QUARTER SIZE HAIL. 

SOURCE...RADAR INDICATED. 

IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT WIND DAMAGE TO 
         ROOFS...SIDING...AND TREES. 

LOCATIONS IMPACTED INCLUDE...
CAMBRIDGE...STANCHFIELD...CAMBRIDGE AIRPORT AND GRANDY. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4556 9314 4554 9315 4552 9344 4563 9335
      4572 9337 4574 9329 4573 9314
TIME...MOT...LOC 1822Z 270DEG 23KT 4562 9314 

HAIL...1.00IN
WIND...60MPH
 
$$

JRB

259 
WWUS53 KMPX 271832
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
132 PM CDT WED JUL 27 2016

MNC059-271845-
/O.CON.KMPX.SV.W.0186.000000T0000Z-160727T1845Z/
ISANTI MN-
132 PM CDT WED JUL 27 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 145 PM CDT
FOR NORTH CENTRAL ISANTI COUNTY...

AT 131 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED OVER GRANDY...OR 7
MILES NORTHEAST OF CAMBRIDGE...MOVING EAST AT 25 MPH.

HAZARD...60 MPH WIND GUSTS AND QUARTER SIZE HAIL. 

SOURCE...RADAR INDICATED. 

IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT WIND DAMAGE TO 
         ROOFS...SIDING...AND TREES. 

LOCATIONS IMPACTED INCLUDE...
CAMBRIDGE...STANCHFIELD...CAMBRIDGE AIRPORT AND GRANDY. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4556 9314 4554 9315 4553 9337 4563 9327
      4574 9324 4573 9314
TIME...MOT...LOC 1831Z 270DEG 21KT 4562 9314 

HAIL...1.00IN
WIND...60MPH
 
$$

JRB

417 
WWUS53 KMPX 271838
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
138 PM CDT WED JUL 27 2016

MNC059-271847-
/O.EXP.KMPX.SV.W.0186.000000T0000Z-160727T1845Z/
ISANTI MN-
138 PM CDT WED JUL 27 2016

...THE SEVERE THUNDERSTORM WARNING FOR NORTH CENTRAL ISANTI COUNTY
WILL EXPIRE AT 145 PM CDT...
        
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND HAVE EXITED THE WARNED AREA. THEREFORE THE WARNING WILL
BE ALLOWED TO EXPIRE.  HOWEVER HEAVY RAIN IS STILL POSSIBLE WITH THIS
THUNDERSTORM.

LAT...LON 4556 9314 4554 9315 4553 9337 4563 9327
      4574 9324 4573 9314
TIME...MOT...LOC 1836Z 271DEG 24KT 4562 9314 

$$

JRB

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 27, 4:18 AM CDT	Special Weather Statement	MPX	Stevens, Swift	42 min
Jul 27, 4:57 AM CDT	Special Weather Statement	MPX	Chippewa, Swift	48 min
Jul 27, 10:37 AM CDT	Special Weather Statement	MPX	McLeod	38 min
Jul 27, 11:58 AM CDT	Severe Thunderstorm Warning	MPX	Carver, McLeod, Wright	32 min
Jul 27, 12:29 PM CDT	Severe Thunderstorm Warning	MPX	Carver, Hennepin, Wright	31 min
Jul 27, 1:00 PM CDT	Severe Thunderstorm Warning	MPX	Hennepin	33 min
Jul 27, 1:05 PM CDT	Special Weather Statement	MPX	Sherburne	25 min
Jul 27, 1:44 PM CDT	Special Weather Statement	MPX	Chisago, Isanti	61 min
Jul 27, 1:50 PM CDT	Special Weather Statement	MPX	Anoka, Ramsey, Washington	70 min
Jul 27, 3:24 PM CDT	Special Weather Statement	MPX	Rice	36 min
Jul 27, 3:27 PM CDT	Special Weather Statement	MPX	Ramsey, Washington	63 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2016 Every 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.