Alert archive / Minnesota / Severe Thunderstorm Warnings in 2015

Severe Thunderstorm Warning 113, NWS Twin Cities, MN

July 24, 2015Blue Earth County, Waseca County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Jul 24, 2015, 4:18 AM CDT for Blue Earth County, Waseca County, Minnesota. It was in force for 22 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 24, 2015, 4:18 AM CDT (09:18 UTC)
Expired: Jul 24, 2015, 4:40 AM CDT
In force: 22 min
Issued by: NWS Twin Cities, MN
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Blue Earth County, MN, Waseca County, MN

The radar

The Minneapolis radar (KMPX), 98 km from the middle of the area, began a volume at 09:17 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, 9.3 hours before the alert went out and 98 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1530 m above ground
0-6 km bulk shear: 12 kt
0-1 km storm-relative helicity: 1 m²/s²
0-3 km storm-relative helicity: 83 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

430 
WUUS53 KMPX 240918
SVRMPX
MNC013-161-241000-
/O.NEW.KMPX.SV.W.0113.150724T0918Z-150724T1000Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
418 AM CDT FRI JUL 24 2015

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EAST CENTRAL BLUE EARTH COUNTY IN SOUTH CENTRAL MINNESOTA...
  SOUTHERN WASECA COUNTY IN SOUTH CENTRAL MINNESOTA...

* UNTIL 500 AM CDT

* AT 417 AM CDT...A SEVERE THUNDERSTORM WAS LOCATED OVER PEMBERTON...
  OR 15 MILES SOUTHEAST OF MANKATO...MOVING EAST AT 40 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 BE NEAR...
  WALDORF AROUND 425 AM CDT.
  NEW RICHLAND AROUND 445 AM CDT.

OTHER LOCATIONS IMPACTED BY THIS SEVERE THUNDERSTORM INCLUDE OTISCO
AND ALMA CITY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

&&

LAT...LON 4395 9388 4404 9388 4405 9341 4385 9341
TIME...MOT...LOC 0917Z 276DEG 33KT 4399 9380 

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

JRB

2 follow-up statements

286 
WWUS53 KMPX 240934
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
434 AM CDT FRI JUL 24 2015

MNC013-240944-
/O.CAN.KMPX.SV.W.0113.000000T0000Z-150724T1000Z/
BLUE EARTH MN-
434 AM CDT FRI JUL 24 2015

...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL BLUE EARTH COUNTY
IS CANCELLED...
    
THE SEVERE THUNDERSTORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF 
THE WARNED AREA. THEREFORE THE WARNING HAS BEEN CANCELLED.

LAT...LON 4393 9376 4404 9376 4405 9341 4385 9341
TIME...MOT...LOC 0934Z 276DEG 33KT 4397 9358 

$$

MNC161-241000-
/O.CON.KMPX.SV.W.0113.000000T0000Z-150724T1000Z/
WASECA MN-
434 AM CDT FRI JUL 24 2015

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 500 AM CDT
FOR SOUTHERN WASECA COUNTY...

AT 434 AM CDT...A SEVERE THUNDERSTORM WAS LOCATED OVER OTISCO...OR 19
MILES SOUTHWEST OF OWATONNA...MOVING EAST AT 40 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 STORM WILL BE NEAR...
  NEW RICHLAND AROUND 440 AM CDT.

OTHER LOCATIONS IMPACTED BY THIS SEVERE THUNDERSTORM INCLUDE OTISCO
AND ALMA CITY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

&&

LAT...LON 4393 9376 4404 9376 4405 9341 4385 9341
TIME...MOT...LOC 0934Z 276DEG 33KT 4397 9358 

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

JRB

876 
WWUS53 KMPX 240940
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
440 AM CDT FRI JUL 24 2015

MNC161-240950-
/O.CAN.KMPX.SV.W.0113.000000T0000Z-150724T1000Z/
WASECA MN-
440 AM CDT FRI JUL 24 2015

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN WASECA COUNTY IS
CANCELLED...
                
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSE AN IMMEDIATE THREAT TO LIFE OR PROPERTY.
THEREFORE THE WARNING HAS BEEN CANCELLED.  HOWEVER HEAVY RAIN IS
STILL OCCURRING WITH THIS THUNDERSTORM.

LAT...LON 4393 9376 4404 9376 4405 9341 4385 9341
TIME...MOT...LOC 0938Z 276DEG 33KT 4396 9350 

$$

JRB

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 23, 11:27 PM CDT	Special Weather Statement	MPX	Douglas, Pope	48 min
Jul 24, 12:11 AM CDT	Special Weather Statement	MPX	Meeker, Stearns, Todd	49 min
Jul 24, 1:00 AM CDT	Special Weather Statement	MPX	Benton, Meeker, Stearns, Wright	60 min
Jul 24, 1:30 AM CDT	Severe Thunderstorm Warning	MPX	Carver, McLeod, Wright	45 min
Jul 24, 1:39 AM CDT	Special Weather Statement	MPX	Martin, Watonwan	36 min
Jul 24, 2:11 AM CDT	Special Weather Statement	MPX	Morrison, Stearns, Todd	49 min
Jul 24, 2:25 AM CDT	Severe Thunderstorm Warning	MPX	Pope, Stevens	35 min
Jul 24, 3:00 AM CDT	Special Weather Statement	MPX	Freeborn, Goodhue, Rice, Steele	60 min
Jul 24, 3:05 AM CDT	Special Weather Statement	MPX	Meeker, Wright	55 min
Jul 24, 3:07 AM CDT	Special Weather Statement	MPX	Meeker, Wright	53 min
Jul 24, 3:37 AM CDT	Special Weather Statement	MPX	Meeker, Pope, Stearns	3 hr
Jul 24, 3:54 AM CDT	Special Weather Statement	MPX	Hennepin, Wright	66 min
Jul 24, 4:04 AM CDT	Special Weather Statement	MPX	Le Sueur, Waseca	41 min
Jul 24, 4:32 AM CDT	Special Weather Statement	MPX	Carver, Scott	58 min
Jul 24, 4:36 AM CDT	Flash Flood Warning	MPX	Kandiyohi, Meeker, Pope, Stearns, Swift, Wright	6 hr
Jul 24, 5:18 AM CDT	Special Weather Statement	MPX	Le Sueur	57 min
Jul 24, 5:51 AM CDT	Special Weather Statement	MPX	Waseca	54 min
Jul 24, 6:37 AM CDT	Severe Thunderstorm Warning	MPX	Blue Earth, Faribault, Freeborn, Steele, Waseca	53 min
Jul 24, 6:54 AM CDT	Tornado Warning	MPX	Freeborn, Steele	21 min
Jul 24, 7:11 AM CDT	Severe Thunderstorm Warning	MPX	Faribault, Freeborn	49 min
Jul 24, 7:32 AM CDT	Special Weather Statement	MPX	Freeborn	58 min
Jul 24, 4:51 PM CDT	Special Weather Statement	MPX	Mille Lacs	24 min
Jul 24, 5:18 PM CDT	Special Weather Statement	MPX	Kanabec	57 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2015 Every severe thunderstorm warning 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.