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2010 Storms of 2009 - specific weather events posted by date

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Old 01-29-2010, 01:47 AM
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Default 2010 Statistics: Ontario Tornadoes and St. Catharines Thunderstorms

The thunderstorm info is of course only for my local area (St. Catharines). If you wish to create a thread like this for your area, please do so!

Any time that has a link on it will go to a specific thread created for that storm.

ONTARIO TORNADO STATISTICS

DATE / TIME / SIZE / LOCATION / DESCRIPTION
-----------------------------------------------------------------------
Jun.05 / 17:00 / F1 / Dalkeit, Ste. Anne de Prescott
- ENVIRONMENT CANADAINVESTIGATORS DOCUMENTED EXTENSIVE DAMAGE TO BARNS..GRAIN BINS..CORN SILOS..HOUSES AND MOBILE HOMES AS WELL AS COUNTLESS BROKEN ANDUPROOTED TREES. BROKEN POWER POLES RESULTED IN LOSS OF POWER FOR SOME LOCATIONS. THE DAMAGE PATH WAS MEASURED TO BE JUST OVER 8 KM LONG ANDRANGED FROM 20 TO 30 METERS WIDE BEFORE APPEARING TO DISSIPATE AT THEONTARIO QUEBEC BORDER. IT IS POSSIBLE THAT THIS TORNADO DID STRENGTHEN AGAIN OVER QUEBEC AS SUBSEQUENT REPORTS OF DAMAGE AT SAINT MART WHICH IS ALONG THE SAME DAMAGE PATH AND LOCATED A FEW KM EAST OF STE-ANNE-DE-PRESCOTT HAVE BEEN RECEIVED BY ENVIRONMENT CANADA.
Jun.06 / ??:?? / St. Joseph Island - AT APPROXIMATELY 4:40 PM ON TUESDAY, JULY 20, A POWERFUL THUNDERSTORM MOVED OVER ST. JOSEPH ISLAND, WHICH IS APPROXIMATELY 40 KM TO THE SOUTHEAST OF SAULT STE. MARIE. A DAMAGE SURVEY CONDUCTED BY A STORM SPOTTER IN THE AREA INDICATED A PATH OF INTERMITTENT DAMAGETO TREES APPROXIMATELY FIVE KM LONG AND 50 METRES WIDE. BASED ON THE DAMAGE, THIS TORNADO WAS RATED AS A FUJITA SCALE ZERO TORNADO.
Jun.06 / 03:00 / F1 / South of Harrow -
THE FIRST TORNADO FROM THIS EVENT OCCURRED SOUTH OF HARROW, BETWEEN DUNN ROAD AND ERIE ROAD, AND WAS RATED AS A FUJITA SCALE ONE TORNADO, WITH PEAK WINDS BETWEEN 120 AND 170 KM/H, AND A PATH LENGTH OF APPROXIMATELY 2 KM.
Jun.06 / ????? / F2 / Leamington - THE SECOND TORNADO OCCURRED ALONG RIDGE ROAD TO THE SOUTHEAST OF HARROW AND WAS RATED AS A FUJITA SCALE TWO TORNADO, WITH PEAK WINDS BETWEEN 180 AND 240 KM/H. THE PATH LENGTH WAS APPROXIMATELY 1 KM.
Jun.06 / ??:?? / F1 / Leamington - THE THIRD TORNADO OCCURRED THROUGH SOUTHERN SECTIONS OF LEAMINGTON AND WAS RATED AS A FUJITA SCALE ONE TORNADO, WITH PEAK WINDS BETWEEN 120 AND 170 KM/H. THE PATH LENGTH WAS APPROXIMATELY 7 KM. THE PARENT THUNDERSTORM WHICH SPAWNED THESE THREE TORNADOES ALSO CAUSED OTHER DAMAGE IN THE AREA DUE TO DOWNBURSTS, WHICH ARE LOCALIZED, POWERFUL WIND GUSTS. SOME OF THESE DOWNBURSTS WERE IN THE FUJITA SCALE ONE RANGE, WITH PEAK WINDS BETWEEN 120 AND 170 KM/H. Videos and info from these tornados here.
Jun.23 / ??:?? / F0 / near Cayuga (Haldimand County) - ENVIRONMENT CANADA IS CONFIRMING THAT A WEAK TORNADO OCCURRED IN THE CAYUGA, ONTARIO AREA (APPROXIMATELY 25 KM SOUTH OF HAMILTON) DURING THE AFTERNOON OF JULY 23, 2010. WITNESSES REPORTED THAT A THIN TORNADO CAUSUED TREE DAMAGE AND TOSSED DEBRIS UP TO 10 METRES AWAY. NO SIGNIFICANT STRUCTURAL DAMAGE TO ANY BUILDING WAS REPORTED. BASED ON THE DAMAGE EVIDENCE, THE TORNADO WAS RATED F-ZERO ON THE FUJITA SCALE (PEAK WIND SPEEDS 60 TO 110 KM/H).
Jun.23 / 18:30 / F2 / Midland - ENVIRONMENT CANADA IS CONFIRMING THAT A FUJITA SCALE 2 TORNADO (PEAK WINDS BETWEEN 180 AND 240 KM/H) OCCURRED IN THE MIDLAND AREA AROUND6:30 PM WEDNESDAY EVENING. THE TORNADO BEGAN IN THE ROWNTREE BEACH AREA WEST OF MIDLAND AND ENDED JUST WEST OF WAUBAUSHENE FOR A TOTA LLENGTH OF APPROXIMATELY 25 KM. THE MAXIMUM WIDTH OF DAMAGE WAS AROUND300 METRES. THE MOST SIGNIFICANT DAMAGE NOTED WITH THIS TORNADO WAS NUMEROUS MOBILE HOMES SEVERELY DAMAGED IN A TRAILER PARK AT THE SOUTH END OF THE TOWN OF MIDLAND. Pictures and video here
Jun.23 / 19:00 / F1 / Midland - A SECOND TORNADO SPAWNED FROM THE SAME THUNDERSTORM THAT MOVED OVER THE MIDLAND AREA OCCURRED AT APPROXIMATELY 7:00 PM. THIS TORNADO BEGAN AROUND THE MAPLE VALLEY AREA APPROXIMATELY 10 KM WEST OF WASHAGO AND ENDED JUST EAST OF WASHAGO. THIS TORNADO WAS RATED AS A FUJITA SCALE ONE TORNADO (PEAK WINDS BETWEEN 120 AND 170 KM/H). THE TOTAL LENGTH OF THE DAMAGE WAS APPROXIMATELY 12 KM BUT WAS INTERMITTENT IN NATURE. THE MAXIMUM WIDTH WAS APPROXIMATELY 60 METRES. THE MOST SIGNIFICANT DAMAGE FROM THIS TORNADO WAS TO FARM BUILDINGS (I.E. A BARN AND SILO) AND A GARAGE.
JUL.23 / ??:?? / F0 / Amherstburg - Environment Canada confirmed Saturday, adding there could have been one more twister in Ruthven. Meteorologist Sarah Wong said the tornado had a track up to a kilometre in length and 100 metres wide. It tore down trees and stripped shingles from roofs, but “the structural damage was confined. It was not severe.” [info: WindsorStar.com]

THUNDERSTORMS (St. Catharines area only - ones I've witnessed)
Yellow = Watch issued , Red = Warning issued

DATE / TIME / CELL TOPS / DESCRIPTION
----------------------------------------------------------------------
Apr.06 / 14:42 / 35,000ft / Massive system passing through, 45k ft and severe warnings to the south. Lots of rumbling thunder, minimal visible lightning.
Apr.07 / 09:30 / 45,000ft / Some strong lightning flashes, infrequent thunder, light rain, no wind.
Apr.07 / 11:40 / 40,000ft / Heavy rain, moderate thunder, no visible lightning.
Apr.08 / 14:50 / 30,000ft / long line of scattered rain-thunder clouds pushing through from the SW
May.01 / 12:30 / 25,000ft / light rain and winds, rumbling thunder
May.03 / 18:00 / 25,000ft / very small, weak storm. Light thunder, rain.
May.04 / 08:00 / unknown / the worlds smallest thunderstorm? Hardly showed on radar, did not even register on echo tops map. 2 rumbles of thunder and sprinkle of rain.
May.05 / 18:00 / 45,000ft / skies went dark, light rain, some photogenic CG/CC lightning. LONG lasting storm (still going at midnight)
May.07 / 21:15 / 30,000ft / long-lasting storm system, spread out over large area. Not many localized cells. Very strong winds causing damage in St. Catharines.
May.13 / 20:30 / 40,000ft / disorganized storm system passing through. Light wind, light rain, weak thunder. 30k to 40k echo tops
Jun.01 / 01:30 / 25,000ft / moderate to heavy rain, moderate but infrequent thunder, no wind
Jun.03 / 16:15 / 30,000ft / moderate to heavy rain. Only a few rumbles of thunder, light wind.
Jun.04 / 23:10 / 50,000ft / heavy rain, gusty but moderate wind, very frequent lightning, loud thunder.
Jun.06 / ???? / ???? / another person in the city mentioned the thunder and rain that happened (I must have been asleep)
Jun.16 / 08:00 / ???? / a few good rumblings of thunder, moderate rain, light wind
Jun.24 / 04:00 / ???? / tail end of a large system that went through beginning the day before which brought a significant tornado in Midland
Jun.28 / 14:45 / 40,000ft / dark cloud base, mammatus visible. Brief but torrential downpours x2.
Jul.23 / 21:15 / 50,000ft / lots of thunder, no visible lightning, moderate rain
Jul.28 / 15:30 / 35,000ft / rolling thunder, moderate to heavy rain, light winds with moderate gusts.
Jul.28 / 18:00 / 50,000ft / heavy downpours, strong thunder/lightning, moderate winds
Aug.09 / 17:30 / 30,000ft / Only a couple rumbles of thunder, light rain.
Aug.16 / 00:10 / 40,000ft / very strong winds, torrential horizontal rain, moderate lightning
Aug.21 / 21:00 / 30,000ft / moderate rain, light wind, light to moderate lightning/thunder.
Sep.03 / 13:15 / 30,000ft / heavy rain, no winds, light thunder
Sep.12 / 05:00 / 30,000ft / loud very close thunder, light rain and wind
Oct.11 / 15:30 / 35,000ft / moderate thunder and lightning, lengthy moderate to strong rainfall, light winds.
Nov.23 / 03:00 / 35,000ft / no wind, light to moderate rain, loud but spread-out rumbling thunder

Warnings with no storms:

Jul.17 / 16:18 - severe thunderstorm warning. No storm at all. (cloudy with light rain)

Last edited by DarkSky; 11-23-2010 at 02:39 AM.
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