Alert archive / Minnesota / Severe Thunderstorm Warnings in 2007
Severe Thunderstorm Warning 305, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Aug 13, 2007, 6:55 PM CDT for Morrison County, Minnesota. It was in force for 65 min. 9 reports 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 13, 2007, 6:55 PM CDT (23:55 UTC)
- Expired
- Aug 13, 2007, 8:00 PM CDT
- In force
- 65 min
- Issued by
- NWS Twin Cities, MN
- Area
- Counties, with a storm outline in the text
County Morrison County, MN
The radar
The Minneapolis radar (KMPX), 151 km from the middle of the area, began a volume at 23:57 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
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 13, 7:10 PM CDT | HAIL 1 | St. Mathias, MN | |
| Aug 13, 7:15 PM CDT | HAIL 1.75 | 10 S Brainerd, MN | 6 INCH DIAMETER OAK TREE DOWNED, HAIL COVERING GROUND. |
| Aug 13, 7:20 PM CDT | HAIL 1 | 1 Nnw Fort Ripley, MN | |
| Aug 13, 7:25 PM CDT | HAIL 1 | Fort Ripley, MN | HAIL IS COVERING GROUND 3 INCHES DEEP. |
| Aug 13, 7:40 PM CDT | HAIL 1 | 7 N Pierz, MN | ELECTRICITY OFF. |
| Aug 13, 7:45 PM CDT | HAIL 1 | 12 N Little Falls, MN | HAIL COVERED GROUND. |
| Aug 13, 8:00 PM CDT | HAIL 1 | Pierz, MN | HAIL LASTED 10 MINUTES. POWER IS OUT. |
| Aug 13, 8:00 PM CDT | HAIL 1.75 | 7 E Little Falls, MN | HAIL COVERED GROUND. |
| Aug 13, 8:02 PM CDT | HAIL 2 | 7 S Hillman, MN | ACTUAL HAIL SIZE 2 1/4 INCHES. |
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 12:00Z, 11.9 hours before the alert went out and 150 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2331 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- 34 m²/s²
- 0-3 km storm-relative helicity
- 56 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
WUUS53 KMPX 132355
SVRMPX
MNC097-140100-
/O.NEW.KMPX.SV.W.0305.070813T2355Z-070814T0100Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
655 PM CDT MON AUG 13 2007
THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
MORRISON COUNTY IN CENTRAL MINNESOTA...
* UNTIL 800 PM CDT
* AT 653 PM CDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM...
CAPABLE OF PRODUCING GOLF BALL SIZE HAIL...AND DAMAGING WINDS IN
EXCESS OF 65 MPH. THIS STORM WAS LOCATED 28 MILES NORTH OF
RANDALL...OR ABOUT 20 MILES NORTHWEST OF BRAINERD...AND MOVING
SOUTHEAST AT 55 MPH.
* LOCATIONS IMPACTED INCLUDE...
RANDALL...
LITTLE FALLS...
PIERZ...
SEVERE THUNDERSTORMS CAN PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE
WARNING. PREPARE TO MOVE TO A PLACE OF SAFETY IN A STURDY STRUCTURE
SUCH AS A BASEMENT OR SMALL INTERIOR ROOM IF A TORNADO IS SPOTTED.
LAT...LON 4629 9437 4628 9463 4593 9455 4584 9380
4610 9382
$$3 follow-up statements
000
WWUS53 KMPX 140011
SVSMPX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
711 PM CDT MON AUG 13 2007
MNC097-140100-
/O.CON.KMPX.SV.W.0305.000000T0000Z-070814T0100Z/
MORRISON MN-
711 PM CDT MON AUG 13 2007
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 800 PM CDT
FOR MORRISON COUNTY...
AT 710 PM CDT...DOPPLER RADAR CONTINUED TO INDICATE A LINE OF SEVERE
THUNDERSTORMS...CAPABLE OF PRODUCING GOLF BALL SIZE HAIL...AND DAMAGING
WINDS IN EXCESS OF 65 MPH. THESE STORMS WERE LOCATED ALONG A LINE
EXTENDING FROM 20 MILES NORTH OF HARDING TO 4 MILES NORTH OF
CUSHING...AND MOVING SOUTHEAST AT 55 MPH.
OTHER LOCATIONS IN THE WARNING INCLUDE CUSHING...RANDALL...PIERZ...
LITTLE FALLS...LASTRUP...HILLMAN...HARDING...GENOLA...FLENSBURG AND
BUCKMAN.
THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE
IMMEDIATELY FOR DAMAGING WINDS...DESTRUCTIVE HAIL...AND DEADLY CLOUD
TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.
LAT...LON 4629 9437 4628 9463 4593 9455 4584 9380
4610 9382
$$
JPR000
WWUS53 KMPX 140020
SVSMPX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
716 PM CDT MON AUG 13 2007
MNC097-140100-
/O.CON.KMPX.SV.W.0305.000000T0000Z-070814T0100Z/
MORRISON MN-
716 PM CDT MON AUG 13 2007
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 800 PM CDT
FOR MORRISON COUNTY...
AT 714 PM CDT...THIS LINE OF THUNDERSTORMS IS CAPABLE OF PRODUCING
BASEBALL SIZE HAIL...AND WINDS IN EXCESS OF 70 MPH. THESE STORMS
WERE LOCATED ALONG A LINE EXTENDING FROM CUSHING TO 17 MILES NORTH
OF HARDING...AND MOVING SOUTHEAST AT 50 MPH.
OTHER LOCATIONS IN THE WARNING INCLUDE CUSHING...SOBIESKI...
RANDALL...PIERZ...LITTLE FALLS...LASTRUP...HILLMAN...HARDING...GENOLA
AND FLENSBURG.
THIS STORM HAS A HISTORY OF PRODUCING SIGNIFICANT WIND DAMAGE AND LARGE
DAMAGING HAIL ACROSS PORTIONS OF SOUTHERN CASS COUNTY. SEEK SHELTER NOW
INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS
LAT...LON 4629 9437 4628 9463 4588 9458 4584 9380
4610 9382
$$
JPR000
WWUS53 KMPX 140026
SVSMPX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
724 PM CDT MON AUG 13 2007
MNC097-140100-
/O.CON.KMPX.SV.W.0305.000000T0000Z-070814T0100Z/
MORRISON MN-
724 PM CDT MON AUG 13 2007
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 800 PM CDT
FOR MORRISON COUNTY...
AT 715 CDT...TREES AND POWER LINES WERE REPORTED TOPPLED IN MOTLEY WITH
THESE STORMS.
AT 723 PM CDT...THESE STORMS WERE LOCATED ALONG A LINE EXTENDING
FROM 3 MILES NORTHEAST OF RANDALL TO 14 MILES NORTH OF HARDING...AND
MOVING SOUTHEAST AT 50 MPH.
OTHER LOCATIONS IN THE WARNING INCLUDE CUSHING...SOBIESKI...
RANDALL...PIERZ...LITTLE FALLS...LASTRUP...HILLMAN...HARDING...GENOLA
AND FLENSBURG.
THIS LINE OF STORMS IS EXTREMELY DANGEROUS...AND HAS A HISTORY OF
PRODUCING DESTRUCTIVE WINDS AND LARGE DAMAGING HAIL. SEEK SHELTER
NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS IF YOU ARE
BOATING HEAD TOWARD SHORE IMMEDIATELY
LAT...LON 4629 9437 4628 9463 4588 9458 4584 9380
4610 9382
$$
JPRNearby
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.