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DarkSky
08-25-2009, 12:29 AM
<table style="border-collapse: collapse;" border="1" bordercolor="#000000" bgcolor="#e6e6e6" cellpadding="0" cellspacing="0" width="1000"><tbody><tr><td colspan="4" bgcolor="#c0c0c0">2008 STORM DATA (listings below are for St. Catharines - personally witnessed storms only)TA (listings below are for St. Catharines - personally witnessed storms only) = Warning = Watch (tornado watch/warnings will be listed in text)
</td> </tr> <tr> <td align="middle" bgcolor="#e6e6e6" width="7%"> Date</td> <td align="middle" bgcolor="#e6e6e6" width="8%"> Time</td> <td align="middle" bgcolor="#e6e6e6" width="13%"> Cloud Tops</td> <td bgcolor="#e6e6e6"> Description</td> </tr> <tr> <td align="middle" bgcolor="#e6e6e6" width="7%"> Apr.11</td> <td align="middle" bgcolor="#e6e6e6" width="8%"> 23:00</td> <td align="middle" bgcolor="#e6e6e6" width="13%"> 30kft</td> <td bgcolor="#e6e6e6"> light rain, weak thunder/lightning</td> </tr> <tr> <td align="middle" bgcolor="#e6e6e6" width="7%"> May.26</td> <td align="middle" bgcolor="#e6e6e6" width="8%"> 10:00</td> <td align="middle" bgcolor="#e6e6e6" width="13%"> 30kft</td> <td bgcolor="#e6e6e6"> light rain, weak thunder/lightning</td> </tr> <tr> <td rowspan="2" align="middle" bgcolor="#e6e6e6" width="7%"> May.31</td> <td align="middle" bgcolor="#e6e6e6" width="8%"> 00:30</td> <td align="middle" bgcolor="#e6e6e6" width="13%"> 45kft</td> <td bgcolor="#e6e6e6"> light rain, frequent lightning, minimal thunder</td> </tr> <tr> <td align="middle" bgcolor="#ffff00" width="8%"> 14:15</td> <td align="middle" bgcolor="#e6e6e6" width="13%"> 50kft (meso)</td> <td bgcolor="#e6e6e6"> heavy downpours, frequent lightning/thunder</td> </tr> <tr> <td align="middle" width="7%"> Jun.5</td> <td align="middle" width="8%"> 22:15</td> <td align="middle" width="13%"> 40kft</td> <td> frequent lightning with CC/CGs, minimal wind/rain (lightning photos here (http://www.ontariostorms.com/gallery/lightning/index.html))</td> </tr> <tr> <td rowspan="2" align="middle" width="7%"> Jun.8</td> <td align="middle" bgcolor="#ff0000" width="8%"> 19:16
Tornado
Warning
(no tornado)</td> <td align="middle" width="13%"> 45kft</td> <td> Weak dissipating tstorm, weak thunder, no visible lightning, no rain, no wind. Tornado warning issued.</td> </tr> <tr> <td align="middle" bgcolor="#ff0000" width="8%"> 20:30</td> <td align="middle" width="13%"> 50kft</td> <td> Severe thunderstorm - sky went dark out over lake followed by strong winds, heavy rain, very frequent lightning and loud thunder. Lots of CC and CG lightning. Many low scud clouds and horizontal cloud shear visible.</td> </tr> <tr> <td align="middle" width="7%"> Jun.9</td> <td align="middle" bgcolor="#ffff00" width="8%"> 23:00</td> <td align="middle" width="13%"> 40kft</td> <td> faint thunder, minimal lightning. Light rain/winds.</td> </tr> <tr> <td align="middle" width="7%"> Jun.10</td> <td align="middle" width="8%"> 00:30</td> <td align="middle" width="13%"> 40kft</td> <td> moderate thunder/lightning/winds/rain.</td> </tr> <tr> <td align="middle" width="7%"> Jun.13</td> <td align="middle" width="8%"> 21:30</td> <td align="middle" width="13%"> 45kft</td> <td> Intense continuous lightning/thunder. Gusty winds, heavy downpours. (lightning photos here (http://www.ontariostorms.com/gallery/lightning/index.html))</td> </tr> <tr> <td align="middle" width="7%"> Jun.15</td> <td align="middle" bgcolor="#ff0000" width="8%"> 21:30</td> <td align="middle" width="13%"> 35kft</td> <td> Intense lightning, heavy rain, light winds (lightning photos here (http://www.ontariostorms.com/gallery/lightning/index.html))</td> </tr> <tr> <td rowspan="2" align="middle" width="7%"> Jun.16</td> <td align="middle" bgcolor="#ff0000" width="8%"> 00:00</td> <td align="middle" width="13%"> 35kft</td> <td> Intense lightning, heavy rain, light winds (lightning photos here (http://www.ontariostorms.com/gallery/lightning/index.html))</td> </tr> <tr> <td align="middle" bgcolor="#ff0000" width="8%"> 12:30</td> <td align="middle" width="13%"> 40kft</td> <td> Very close lightning, 'canon/explosion' thunder from close CGs, moderate rain, light wind.(photos here (http://www.ontariostorms.com/gallery/clouds/index2.html))</td> </tr> <tr> <td align="middle" width="7%"> Jun.23</td> <td align="middle" bgcolor="#ffff00" width="8%"> 12:30</td> <td align="middle" width="13%"> 40kft</td> <td> Tiny little cell put down a brief burst of heavy rain and weak-moderate thunder.</td> </tr> <tr> <td align="middle" width="7%"> Jun.28</td> <td align="middle" width="8%"> 02:30</td> <td align="middle" width="13%"> ?</td> <td> moderate thunder/lightning, moderate rain, light winds</td> </tr> <tr> <td align="middle" width="7%"> Jun.29</td> <td align="middle" bgcolor="#ff0000" width="8%"> 12:45</td> <td align="middle" width="13%"> 40kft</td> <td> Torrential downpours and very visible rain core while chasing, constant thunder, strong lightning, large hail reported at Niagara Airport, and in St. Catharines (Walmart on Welland Ave.) Warning (http://www.ontariostorms.com/2008/080629-warning-1329.htm).</td> </tr> <tr> <td align="middle" width="7%"> Jul.11</td> <td align="middle" width="8%"> 06:00</td> <td align="middle" width="13%"> 35kft</td> <td> Heavy rain, loud thunder and close lightning strikes (but not many)</td> </tr> <tr> <td align="middle" width="7%"> Jul.16</td> <td align="middle" width="8%"> 06:30</td> <td align="middle" width="13%"> ?</td> <td> Light thunder/rain.</td> </tr> <tr> <td align="middle" width="7%"> Jul.17</td> <td align="middle" width="8%"> 03:45</td> <td align="middle" width="13%"> 35kft</td> <td> Frequent lightning, moderate rain, light winds.</td> </tr> <tr> <td align="middle" width="7%"> Jul.19</td> <td align="middle" width="8%"> 14:00</td> <td align="middle" width="13%"> 25kft</td> <td> Cell 1: Light rain/thunder. Cell 2: heavy rain, moderate wind, frequent thunder, very close CG lightning producing 'cannon' thunder (big 'BANG!' sounding like a truck just hit the house)</td> </tr> <tr> <td align="middle" width="7%"> Jul.21</td> <td align="middle" bgcolor="#ff0000" width="8%"> 14:27</td> <td align="middle" width="13%"> no storm</td> <td> No storm, no rain, blue sky.</td> </tr> <tr> <td align="middle" width="7%"> Jul.22</td> <td align="middle" bgcolor="#ff0000" width="8%"> 22:15</td> <td align="middle" width="13%"> 45kft</td> <td> Continuous lightning, very active low-level cloud structure. (lightning photos here (http://www.ontariostorms.com/gallery/lightning/index.html))
Earlier in the day this system produced a tornado (pictures are online including airborne debris) in Welland in the afternoon.</td> </tr> <tr> <td align="middle" width="7%"> Jul.23</td> <td align="middle" bgcolor="#ffff00" width="8%"> 00:45</td> <td align="middle" width="13%"> 35kft</td> <td> Small but very circular (on radar) cell passed through producing frequent lightning</td> </tr> <tr> <td align="middle" width="7%"> Jul.23</td> <td align="middle" bgcolor="#ffff00" width="8%"> 12:45</td> <td align="middle" width="13%"> 35kft</td> <td> Moderate thunder/lightning. Heavy rain, light wind.</td> </tr> <tr> <td rowspan="2" align="middle" width="7%"> Jul.24</td> <td align="middle" width="8%"> 07:15</td> <td align="middle" width="13%"> 30kft</td> <td> Very tiny storm on radar put out a LOUD show. Lots of close CG lightning and very loud thunder. Heavy rain for long periods.</td> </tr> <tr> <td align="middle" width="8%"> 14:15</td> <td align="middle" width="13%"> 35kft</td> <td> Moderate to heavy rain, CG lightning. Light to medium winds. 2 reports of funnels in Smithville.</td> </tr> <tr> <td rowspan="2" align="middle" width="7%"> Jul.26</td> <td align="middle" width="8%"> 09:30</td> <td align="middle" width="13%"> 30kft</td> <td> Weak storm, light rain, but produced some close lightning and loud thunder.</td> </tr> <tr> <td align="middle" bgcolor="#ff0000" width="8%"> 14:30</td> <td align="middle" width="13%"> 40kft</td> <td> Strong storm out on lake near Hamilton dissipated as it approached. Light wind/thunder, sprinkle of rain.</td> </tr> <tr> <td align="middle" width="7%"> Jul.30</td> <td align="middle" width="8%"> 10:50</td> <td align="middle" width="13%"> 35kft</td> <td> Weak storm</td> </tr> <tr> <td align="middle" width="7%"> Aug.05</td> <td align="middle" bgcolor="#ff0000" width="8%"> 18:00</td> <td align="middle" width="13%"> 50kft</td> <td> Moderate thunder, little visible lightning, moderate rain, no wind.</td> </tr> <tr> <td align="middle" width="7%"> Aug.07</td> <td align="middle" bgcolor="#ff0000" width="8%"> 17:30</td> <td align="middle" width="13%"> 41kft</td> <td> Weak but continuous thunder, moderate visible lightning, light winds. Storm developed to the south and continued to move south so we just got the back-end of it here. Not sure why a warning was issued half an hour after the storm was past the city.</td> </tr> <tr> <td align="middle" width="7%"> Aug.09</td> <td align="middle" bgcolor="#ff0000" width="8%"> 15:30</td> <td align="middle" width="13%"> 40kft</td> <td> Severe storm put out some active low-level cloud formations and some nice scud clouds. Light rain, moderate wind. Moderate thunder/lightning. Time-lapse video in videos section (http://www.ontariostorms.com/movies/index.html).</td> </tr> <tr> <td align="middle" width="7%"> Aug.11</td> <td align="middle" width="8%"> 19:30</td> <td align="middle" width="13%"> 30kft</td> <td>
</td> </tr> <tr> <td align="middle" width="7%"> Aug.17</td> <td align="middle" width="8%"> 06:00</td> <td align="middle" width="13%"> ?</td> <td> Some close lightning and very loud thunder, light winds, moderate rain.</td> </tr> <tr> <td align="middle" width="7%"> Aug.24</td> <td align="middle" width="8%"> 13:45</td> <td align="middle" width="13%"> 40kft</td> <td> Moderate rolling thunder, moderate rain, light wind. Power went out.</td> </tr> <tr> <td align="middle" width="7%"> Oct.26</td> <td align="middle" width="8%"> 18:00</td> <td align="middle" width="13%"> 25kft</td> <td> Strong thunder/lightning. Very dark sky, strong wind gusts.</td> </tr> <tr> <td colspan="4" align="middle" bgcolor="#c0c0c0"> 2007 Ontario Tornado Listing (F# = confirmed, F? = probable)</td> </tr> <tr> <td align="middle" bgcolor="#e6e6e6" width="7%"> May.26</td> <td align="middle" bgcolor="#e6e6e6" width="8%"> ?</td> <td align="middle" bgcolor="#e6e6e6" width="13%"> Windy Lake Provincial Park (near Sudbury)</td> <td align="left" bgcolor="#e6e6e6" width="71%"> F0</td> </tr> <tr> <td align="middle" bgcolor="#e6e6e6" width="7%"> May.26</td> <td align="middle" width="8%"> ?</td> <td align="middle" bgcolor="#e6e6e6" width="13%"> Reynolds Lake (NE of North Bay)</td> <td align="left" bgcolor="#e6e6e6" width="71%"> F0</td> </tr> <tr> <td align="middle" bgcolor="#e6e6e6" width="7%"> Jun.6</td> <td align="middle" bgcolor="#e6e6e6" width="8%"> 18:00</td> <td align="middle" bgcolor="#e6e6e6" width="13%"> Sault Ste. Marie</td> <td align="left" bgcolor="#e6e6e6" width="71%"> possible F0-F1 Severe thunderstorms passed through the Sault Ste Marie area on Friday June 6 near 6 PM EDT. Damage was reported at a tractor dealership near echo bay. Photographic evidence suggests most of The damage was rated as Fujita scale zero (f zero) associated With winds up to 115 km/h. However a roof was torn off a warehouse suggesting winds in the Fujita one range (f1) between 120 to 170 km/h.
</td> </tr> <tr> <td align="middle" bgcolor="#e6e6e6" width="7%"> Jun.8</td> <td align="middle" bgcolor="#e6e6e6" width="8%"> 17:00</td> <td align="middle" bgcolor="#e6e6e6" width="13%"> Lucan (north of London)</td> <td align="left" bgcolor="#e6e6e6" width="71%"> F1 UPON REVIEW OF PHOTOGRAPHS AND CONVERSATIONS WITH AN EYEWITNESS. THIS TORNADO'S PATH WAS ABOUT 1 KM LONG AND 10 TO 20 METRES WIDE. THE MOST SIGNIFICANT DAMAGE WAS THE TOTAL ROOF REMOVAL OF A SHED. THIS TORNADO IS THE THIRD TORNADO OF THE SEASON SO FAR IN ONTARIO.
</td> </tr> <tr> <td align="middle" bgcolor="#e6e6e6" width="7%"> Jun.8</td> <td align="middle" bgcolor="#e6e6e6" width="8%"> 18:00</td> <td align="middle" bgcolor="#e6e6e6" width="13%"> 30km east of Sarnia, hwy.402</td> <td align="left" bgcolor="#e6e6e6" width="71%"> F0 THE TORNADO OCCURED ONLY BRIEFLY AND DID NO APPRECIABLE DAMAGE. IT HAS BEEN RATED AS A FUJITA SCALE ZERO TORNADO - PEAK WINDS UP TO 110 KM/H - WHICH IS THE WEAKEST ON THE FUJITA SCALE THAT GOES UP TO 5. FUJITA SCALE 5 TORNADOES HAVE WINDS BETWEEN 420 AND 510 KM/H.
</td> </tr> <tr> <td align="middle" bgcolor="#e6e6e6" width="7%"> Jun.22</td> <td align="middle" bgcolor="#e6e6e6" width="8%"> ?</td> <td align="middle" bgcolor="#e6e6e6" width="13%"> NE of Bryanston (near London)</td> <td align="left" bgcolor="#e6e6e6" width="71%"> F0 Video: http://www.youtube.com/watch?v=Y9xa11KC32M
</td> </tr> <tr> <td align="middle" bgcolor="#e6e6e6" width="7%"> Jul.22</td> <td align="middle" bgcolor="#e6e6e6" width="8%"> afternoon</td> <td align="middle" bgcolor="#e6e6e6" width="13%"> Welland</td> <td align="left" bgcolor="#e6e6e6" width="71%"> (http://www.ontariostorms.com/2008/080722-tornado_%28sandra%29.jpg)(photo credit: Sandra)
F0 Photos from different storm spotters in the area show funnel as well as airborne debris. CONFIRMED TORNADO IN WELLAND ON TUESDAY JUNE 22.
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==WEATHER EVENT DISCUSSION==
LATE ON THE AFTERNOON OF JULY 22ND..AN EAST TO WEST LINE OF THUNDERSTORMS DEVELOPED OVER THE NIAGARA PENINSULA IN RESPONSE TO AN UNSTABLE ATMOSPHERE AND SURFACE CONVERGENCE AS A RESULT OF NORTHEAST
WINDS OFF OF LAKE ONTARIO. ONE OF THE THUNDERSTORM CELLS WAS OBSERVED TO FORM A FUNNEL CLOUD IN THE VICINITY OF WOODLAWN ROAD IN WELLAND. PHOTOGRAPHIC EVIDENCE OF SHEET METAL BEING THROWN ABOUT FROM A NEARBY CONSTRUCTION SITE..AND FIRST HAND REPORTS OF WIND ROTATION AT THE SURFACE..HAS LED ENVIRONMENT CANADA TO CONCLUDE THAT A WEAK TORNADO WAS PRESENT AROUND 5.30 PM. NO OTHER SIGNIFICANT DAMAGE WAS REPORTED. THIS TORNADO HAS THUS BEEN ASSESSED AS FUJITA SCALE ZERO (WIND SPEEDS OF UP TO 110 KM/H). THIS REPRESENTS THE 7TH OFFICIAL TORNADO IN ONTARIO THIS SEASON. THE SUMMER SEVERE WEATHER SEASON RUNS FROM LATE APRIL UNTIL EARLY OCTOBER. ON AVERAGE ONTARIO RECEIVES ABOUT 11 TORNADOES PER SEASON.
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TIME(LCL) LOCATION EVENT DESCRIPTION
5.30 PM WELLAND CONFIRMED F-ZERO TORNADO (VICINITY OF WOODLAWN ROAD)

</td> </tr> <tr> <td align="middle" bgcolor="#e6e6e6" width="7%"> Jul.27</td> <td align="middle" bgcolor="#e6e6e6" width="8%">
</td> <td align="middle" bgcolor="#e6e6e6" width="13%"> Coboconk (n. Balsam Lake, East of Lake Simcoe)</td> <td align="left" bgcolor="#e6e6e6" width="71%"> F1 (photo credit: Krista Lamb)
AWCN11 CWTO 292149
WEATHER SUMMARY FOR ALL OF SOUTHERN ONTARIO AND THE NATIONAL CAPITAL REGION ISSUED BY ENVIRONMENT CANADA TORONTO AT 5:24 PM EDT TUESDAY 29 JULY 2008. CONFIRMED TORNADO IN NORTH OF COBOCONK ON SATURDAY JULY 26.
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==WEATHER EVENT DISCUSSION==
AT APPROXIMATELY 2:30 PM SATURDAY JULY 26TH A TORNADO TOUCHED DOWN JUST NORTH OF COBOCONK IN THE SILVER LAKE AREA. THE MOST SIGNIFICANT DAMAGE WAS TO AN AREA OF TREES JUST WEST OF SILVER LAKE. THE STAND WAS DECIMATED WITH TREES BEING UPROOTED AND SNAPPED OFF AT HEIGHT. A DAMAGE SURVEY TEAM FROM ENVORONMENT CANADA HAS ASSESSED THE TORNADO AS F-1 ON THE FUJUTA SCALE WITH WINDS BETWEEN 120 AND 170 KILOMETRES PER HOUR. THIS REPRESENTS THE 8TH OFFICIAL TORNADO IN ONTARIO THIS SEASON. THE SUMMER SEVERE WEATHER SEASON RUNS FROM LATE APRIL UNTIL EARLY OCTOBER. ON AVERAGE ONTARIO RECEIVES ABOUT 11 TORNADOES PER SEASON.
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DATE
TIME(LCL) LOCATION EVENT DESCRIPTION
2.30 PM COBOCONK AREA CONFIRMED F-1 TORNADO</td> </tr> <tr> <td align="middle" bgcolor="#e6e6e6" width="7%"> Jul.30</td> <td align="middle" bgcolor="#e6e6e6" width="8%"> 19:00</td> <td align="middle" bgcolor="#e6e6e6" width="13%"> Hickson (n. of Woodstock)</td> <td align="left" bgcolor="#e6e6e6" width="71%"> Article here (http://www.woodstocksentinelreview.com/ArticleDisplay.aspx?e=1138200).</td> </tr> </tbody></table>