Alert archive / Minnesota / Severe Thunderstorm Warnings in 2007

Severe Thunderstorm Warning 236, NWS Twin Cities, MN

July 13, 2007Benton County, Mille Lacs County, Morrison County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Jul 13, 2007, 9:58 PM CDT for Benton County, Mille Lacs County, Morrison County, Minnesota. It was in force for 47 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
Jul 13, 2007, 9:58 PM CDT (02:58 UTC)
Expired
Jul 13, 2007, 10:45 PM CDT
In force
47 min
Issued by
NWS Twin Cities, MN
Area
Counties, with a storm outline in the text

Counties Benton County, MN, Mille Lacs County, MN, Morrison County, MN

The radar

The Minneapolis radar (KMPX), 116 km from the middle of the area, began a volume at 03:02 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
Jul 13, 10:10 PM CDTTSTM WND DMG1 E Milaca, MN15 INCH DIAMETER TREE DOWN.

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 00:00Z, 3.0 hours before the alert went out and 116 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 2007-07-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 2007-07-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 125 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2108 m above ground
0-6 km bulk shear
52 kt
0-1 km storm-relative helicity
125 m²/s²
0-3 km storm-relative helicity
322 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.

000 
WUUS53 KMPX 140259
SVRMPX
MNC009-095-097-140345-
/O.NEW.KMPX.SV.W.0236.070714T0258Z-070714T0345Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
958 PM CDT FRI JUL 13 2007

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHEAST MORRISON COUNTY IN CENTRAL MINNESOTA...
  MILLE LACS COUNTY IN EAST CENTRAL MINNESOTA...
  BENTON COUNTY IN CENTRAL MINNESOTA...

* UNTIL 1045 PM CDT

* AT 953 PM CDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM...
  CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 65 MPH.  THIS
  STORM WAS LOCATED 18 MILES NORTHWEST OF MILACA...AND MOVING
  SOUTHEAST AT 30 MPH.

* LOCATIONS IMPACTED INCLUDE...
  MILACA...

DOPPLER RADAR HAS INDICATED SOME WEAK ROTATION WITHIN THIS STORM. 
WHILE NOT EXPECTED...A TORNADO MAY STILL DEVELOP. IF A TORNADO IS 
SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A STURDY 
STRUCTURE...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM.

STAY INDOORS...AND AWAY FROM WINDOWS.

LAT...LON 4608 9381 4597 9410 4580 9393 4572 9385
      4573 9364 4580 9351 4589 9354

$$
3 follow-up statements
000 
WWUS53 KMPX 140317
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1016 PM CDT FRI JUL 13 2007

MNC097-140326-
/O.CAN.KMPX.SV.W.0236.000000T0000Z-070714T0345Z/
MORRISON MN-
1016 PM CDT FRI JUL 13 2007

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEAST MORRISON COUNTY IS 
CANCELLED...

LAT...LON 4597 9365 4583 9375 4578 9386 4557 9376
      4564 9352 4569 9352 4580 9351 4589 9354

$$

MNC009-095-140345-
/O.CON.KMPX.SV.W.0236.000000T0000Z-070714T0345Z/
MILLE LACS MN-BENTON MN-
1016 PM CDT FRI JUL 13 2007

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1045 PM CDT
FOR BENTON AND MILLE LACS COUNTIES...

AT 1014 PM CDT...DOPPLER RADAR CONTINUED TO INDICATE A SEVERE
THUNDERSTORM...CAPABLE OF PRODUCING PENNY SIZE HAIL...AND DAMAGING
WINDS IN EXCESS OF 65 MPH.  THIS STORM WAS LOCATED NEAR MILACA...OR
ABOUT 12 MILES WEST OF OGILVIE...AND MOVING SOUTHEAST AT 45 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE PEASE...MILACA...FORESTON AND
BOCK.

THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE
IMMEDIATELY FOR DAMAGING WINDS...DESTRUCTIVE HAIL...AND DEADLY CLOUD
TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.

LAT...LON 4597 9365 4583 9375 4578 9386 4557 9376
      4564 9352 4569 9352 4580 9351 4589 9354

$$
000 
WWUS53 KMPX 140329
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1029 PM CDT FRI JUL 13 2007

MNC009-140339-
/O.CAN.KMPX.SV.W.0236.000000T0000Z-070714T0345Z/
BENTON MN-
1029 PM CDT FRI JUL 13 2007

...THE SEVERE THUNDERSTORM WARNING FOR BENTON COUNTY IS CANCELLED...

LAT...LON 4589 9354 4575 9372 4569 9381 4561 9376
      4558 9369 4556 9352 4564 9351 4569 9351
      4580 9351

$$

MNC095-140345-
/O.CON.KMPX.SV.W.0236.000000T0000Z-070714T0345Z/
MILLE LACS MN-
1029 PM CDT FRI JUL 13 2007

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1045 PM CDT
FOR MILLE LACS COUNTY...

AT 1027 PM CDT...DOPPLER RADAR CONTINUED TO INDICATE A SEVERE
THUNDERSTORM...CAPABLE OF PRODUCING NICKEL SIZE HAIL...AND DAMAGING
WINDS IN EXCESS OF 65 MPH.  THIS STORM WAS LOCATED 6 MILES EAST OF
PEASE...OR ABOUT 12 MILES SOUTHWEST OF OGILVIE...AND MOVING SOUTHEAST
AT 45 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE PRINCETON...PEASE...FORESTON 
AND BOCK.

THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE
IMMEDIATELY FOR DAMAGING WINDS...DESTRUCTIVE HAIL...AND DEADLY CLOUD
TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.

LAT...LON 4589 9354 4575 9372 4569 9381 4561 9376
      4558 9369 4556 9352 4564 9351 4569 9351
      4580 9351

$$
000 
WWUS53 KMPX 140342
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1042 PM CDT FRI JUL 13 2007

MNC095-140352-
/O.EXP.KMPX.SV.W.0236.000000T0000Z-070714T0345Z/
MILLE LACS MN-
1042 PM CDT FRI JUL 13 2007

...THE SEVERE THUNDERSTORM WARNING FOR MILLE LACS COUNTY EXPIRES AT
1045 PM CDT...

SEVERE STORMS HAVE MOVED OUT OF COUNTY. HOWEVER...MORE THUNDERSTORMS 
WERE DEVELOPING IN THE AREA...REMAIN ALERT FOR POSSIBLE ADDITIONAL 
WARNINGS. REPORT SEVERE WEATHER TO LOCAL LAW ENFORCEMENT FOR RELAY 
TO THE NATIONAL WEATHER SERVICE.

LAT...LON 4589 9354 4575 9372 4569 9381 4561 9376
      4558 9369 4556 9352 4564 9351 4569 9351
      4580 9351

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 13, 10:26 PM CDTSevere Thunderstorm WarningMPXIsanti49 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2007Every severe thunderstorm warning in 2007

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.