Moderator: S2k Moderators
NWS Office MPX wrote:A team from the National Weather Service this afternoon has determined the large tornado that struck portions of Le Sueur County yesterday was an F3 Tornado, with winds between 158 and 206 mph. The continuous track of this powerful tornado was from just northeast of Kasota, to four miles northwest of Waterville. At this time it is unknown as to how many twisters dropped from the skies across southern Minnesota on Thursday. The survey team has yet to complete its full investigation and is now headed into Nicollet county to assess further damage. For text information on overall storm damage click here.
NWS Office ABR wrote:F3 tornado in McPherson County
F3 TORNADO IN MCPHERSON COUNTY SOUTH DAKOTA LATE THURSDAY
AFTERNOON...
A STORM SURVEY CREW FROM THE ABERDEEN NATIONAL WEATHER SERVICE
OFFICE HAS DETERMINED THAT THE STRONG TORNADO THAT MOVED ACROSS
SOUTHWESTERN MCPHERSON COUNTY LATE THURSDAY AFTERNOON WAS RATED F3
ON THE FUJITA TORNADO SCALE. F3 INTENSITY WINDSPEEDS RANGE FROM 158
TO 206 MPH.
THE TORNADO INITIALLY TOUCHED DOWN APPROXIMATELY 7 MILES SOUTH
SOUTHWEST OF EUREKA (ON THE CAMPBELL COUNTY LINE) AT 503 PM CDT
AND TRACKED NEARLY IN A STRAIGHT LINE SOUTHEAST TO 6 MILES
SOUTHEAST OF HILLSVIEW AT 530 PM...ON THE GROUND ABOUT 27 MINUTES
FOR 14 MILES. THE WIDTH OF THE TORNADO AT ITS WIDEST POINT WAS
DETERMINED TO BE APPROXIMATELY 300 YARDS.
THE STORM DAMAGE TEAM EXAMINED 4 DIFFERENT DAMAGE SITES...WITH
THE WORST DAMAGE RATED F3 8 MILES SOUTH OF EUREKA AND 2 MILES
SOUTHEAST OF HILLSVIEW.
DAMAGE INCLUDED NUMEROUS POWER POLES SNAPPED OFF...TREES SHREDDED
OF LEAVES...BARK AND/OR UPROOTED. NUMEROUS LIVESTOCK AND DEER
WERE OBSERVED DEAD. DEVASTATING DAMAGE WAS OBSERVED TO FARM
EQUIPMENT...HOMES...BARNS GRAIN BINS AND VEHICLES. A WELL
ANCHORED MOBILE HOME WAS UPROOTED AND COMPLETELY DESTROYED.
DEBRIS FROM EACH SITE WAS OBSERVED UP TO 3 MILES DOWNWIND.
NO DEATHS OCCURRED FROM THE STRONG TORNADO...AND ONLY 1 PERSON
WAS INJURED DUE TO SCRAPES AND BRUISES.
AN ADDITIONAL STATEMENT CONCERNING THE STRONG TORNADO IN
SULLY...HAND AND HYDE COUNTIES WILL BE ISSUED WHEN THE ABERDEEN
STORM SURVEY TEAM HAS COMPLETED COMPILING THE DAMAGE INFORMATION.
WindRunner wrote:Wow . . . you caught the Nicollet multi-vortex tornado? That must have been quite a sight . . . wish your picture of it was a little better, though, it's kind of hard to see the other vortexes. Beautiful pictures otherwise, though, especially the first two.
NWS Office MPX wrote:PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1145 PM CDT FRI AUG 25 2006
...DAMAGE SURVEY FROM LE SUEUR AND NICOLLET COUNTIES...
THE DAMAGE SURVEY WILL CONTINUE THIS WEEKEND...AS DAYLIGHT RAN OUT
ON THE SURVEY TEAM FRIDAY. MUCH OF THE TIME FRIDAY WAS SPENT
CLOSELY EXAMINING THE DAMAGE IN LE SUEUR COUNTY...IN ATTEMPT TO
LOCATE ANY POSSIBLE F4 DAMAGE.
AFTER LOOKING AT ALL THE DEVASTATED AREAS OF LE SUEUR COUNTY... IT
WAS DETERMINED THAT THE TORNADO PRODUCED NO MORE THAN F3 DAMAGE.
FOUR HOMES WERE LEVELED...BUT NONE APPEARED TO HAVE HAD A STRONG
FOUNDATION. SEVERAL VEHICLES WERE ROLLED BUT NONE WERE SENT
AIRBORNE. THERE WERE PLENTY OF SEVERELY BROKEN TREES... BUT THOSE
INDICATED NOTHING MORE THAN F3. THEREFORE THE LE SUEUR COUNTY
PORTION OF THE TORNADO WAS AN F3. THE TORNADO DISSIPATED FIVE MILES
NORTHWEST OF WATERVILLE.
THE TEAM ONLY HAD ENOUGH TIME TO EXAMINE THE TORNADO TRACK AS FAR
WEST AS KASOTA. THERE WAS OBVIOUS DAMAGE ON BOTH SIDES OF THE
MINNESOTA RIVER AT KASOTA...AND SO THE TORNADO THAT DEVASTATED LE
SUEUR COUNTY DID ORIGINATE IN NICOLLET COUNTY. BUT DUE TO THE LOSS
OF DAYLIGHT...WE WERE UNABLE TO DETERMINE HOW FAR WEST IT WENT INTO
NICOLLET COUNTY. IT IS POSSIBLE IT STARTED IN OR NEAR THE CITY OF
NICOLLET...BUT THERE IS NO WAY TO KNOW FOR SURE...YET. THAT
INFORMATION WILL BE DETERMINED THIS WEEKEND.
IT IS ALSO UNCERTAIN HOW MANY TORNADOES DEVELOPED ACROSS SOUTHERN
MINNESOTA ON THURSDAY. THERE ARE NUMEROUS CREDIBLE REPORTS OF
TORNADOES TOUCHING DOWN BRIEFLY SOUTH AND WEST OF NICOLLET... AS
WELL AS SOUTH OF COURTLAND. THIS IS WHERE VIDEO WILL PLAY AN
IMPORTANT ROLE...AS WELL AS SPOTTER REPORTS AND 911 LOGS. THERE
WERE ALSO SOME REPORTS OF TOUCHDOWNS IN EXTREME EASTERN LE SUEUR
COUNTY INTO RICE COUNTY...IN AREAS OUTSIDE KILKENNY... WATERVILLE
AND MORRISTOWN. THESE WILL ALSO BE RESEARCHED. MORE INFORMATION
WILL BE PROVIDED AS SOON AS POSSIBLE.
NWS Office FSD wrote:PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
725 PM CDT FRI AUG 25 2006
...DAMAGE SURVEY CONDUCTED IN BEADLE COUNTY...
THE NATIONAL WEATHER SERVICE IN SIOUX FALLS COMPLETED A GROUND
DAMAGE SURVEY OF THE LOCATIONS WITHIN BEADLE COUNTY THAT WERE
AFFECTED BY TORNADOES ON AUGUST 24 2006. THE PURPOSE OF A GROUND
DAMAGE SURVEY IS TO ASSESS THE MAGNITUDE AND THE EXTENT OF THE
DAMAGE. THE ANSWERS TO THOSE QUESTIONS HELP DETERMINE THE STRENGTH
OF THE TORNADOES AND DETERMINE A RATING...KNOWN AS THE FUJITA SCALE
RATING.
AS A RESULT OF THE SURVEY...IT WAS DETERMINED THAT FOUR TORNADOES
OCCURRED IN BEADLE COUNTY FROM 638 PM TO 740 PM CDT. A DAMAGE PATH
EXTENDED FROM TWO MILES SOUTH OF WESSINGTON TO SEVEN MILES SOUTH OF
CAVOUR. THE STRONGEST TORNADO OCCURRED SOUTH OF WOLSEY RESULTING IN
TWO MINOR INJURIES AND CONSIDERABLE DEVASTATION TO NUMEROUS
FARMSTEADS ALONG THE WAY. IT WAS DETERMINED THAT A F3 RATING ON THE
FUJITA SCALE WAS APPROPRIATE FOR THIS TORNADO. A F3 RATING MEANS
THAT WINDS ASSOCIATED WITH THE TORNADO RANGED FROM 158 TO 206 MPH.
THE OTHER TORNADOES VARIED FROM A F0 (40 TO 74 MPH) RATING TO A F2
(113 TO 157 MPH) RATING.
ON SATURDAY MORNING...AUGUST 26 2006...AN AERIAL SURVEY WILL ALSO BE
CONDUCTED OF THE AREA. THE AERIAL SURVEY WILL RESULT IN A BETTER
ASSESSMENT OF THE TORNADO TRACKS AND EXTENT OF THE DAMAGE PATHS. IT
MAY ALSO RESULT IN A MODIFICATION TO THE FINAL COUNT OF TORNADOES
THAT OCCURRED IN BEADLE COUNTY ON AUGUST 24. THE NWS IN SIOUX FALLS
WILL USE THE RESULTS OF BOTH OF THESE SURVEYS ALONG WITH RADAR DATA
AND SPOTTER REPORTS TO WRITE A FINAL STORM DAMAGE REPORT THAT WILL
BE RELEASED ON MONDAY AUGUST 28. IT WILL BE POSTED ON
http://WWW.WEATHER.GOV/SIOUX FALLS.
IF YOU HAVE FURTHER QUESTIONS CONCERNING THESE TORNADOES OR THE
RESULTS OF THE SURVEY...CONTACT GREG HARMON OR TODD HEITKAMP AT THE
NWS OFFICE SIOUX FALLS.
$$
TODD HEITKAMP
WARNING COORDINATION METEOROLOGIST
NWS - SIOUX FALLS
Return to “USA & Caribbean Weather”
Users browsing this forum: No registered users and 22 guests
