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DarkSky
02-11-2010, 04:10 PM
April 18th - Severe Thunderstorm
<hr> Skies went black over a period of about 15 seconds, winds and rain picked up followed by about 10 mins of pea-sized hail.
Damage in Niagara Falls heard on the scanner, of a large tree collapsing the front of a house. No injuries reported (thanks Mark)
75 knot wind gust (86 mph or 140 kmh) reported from Niagara Falls NY airport at 11 am (thanks Rob)

DAMAGE: Large trees crashed through walls and roofs of homes, damage to cars, shingles and roofs ripped from homes in Niagara Falls and St. Catharines, large part of roof ripped off school, debris thrown into nearby field.
Click thumbnails below for radar and satellite images:
http://www.ontariostorms.com/2004/apr18/radar-apr18_small.gif (http://www.ontariostorms.com/2004/apr18/radar-apr18.gif) http://www.ontariostorms.com/2004/apr18/radar-summary-2004-apr18-1000_small.gif (http://www.ontariostorms.com/2004/apr18/radar-summary-2004-apr18-1000.gif) http://www.ontariostorms.com/2004/apr18/hires-sat-2004-apr18-1050_small.jpg (http://www.ontariostorms.com/2004/apr18/hires-sat-2004-apr18-1050.jpg) http://www.ontariostorms.com/2004/apr18/doppler-2004-apr18-1050_small.gif (http://www.ontariostorms.com/2004/apr18/doppler-2004-apr18-1050.gif)
RIGHT CLICK here and select "Save Target As" FOR A MOVIE CLIP (http://www.ontariostorms.com/movies/2004-apr18-10am-hail.wmv) (Size: 10mb)
(.WMV format - make sure you have the latest Windows MediaPlayer installed)
http://www.ontariostorms.com/2004/apr18/2004-apr18_001.jpghttp://www.ontariostorms.com/2004/apr18/2004-apr18_002.jpghttp://www.ontariostorms.com/2004/apr18/2004-apr18_003.jpghttp://www.ontariostorms.com/2004/apr18/2004-apr18_004.jpghttp://www.ontariostorms.com/2004/apr18/2004-apr18_005.jpghttp://www.ontariostorms.com/2004/apr18/2004-apr18_006.jpghttp://www.ontariostorms.com/2004/apr18/2004-apr18_007.jpg
St Catharines - Grimsby - northern Niagara region
10:47 AM EDT Sunday 18 April 2004
Severe thunderstorm warning for
St Catharines - Grimsby - northern Niagara region issued
Niagara Falls - Welland - southern Niagara region
10:37 AM EDT Sunday 18 April 2004
Severe thunderstorm watch for
Niagara Falls - Welland - southern Niagara region issued
Thunderstorms producing large hail and strong winds are expected over
the above regions this morning.
This is an alert to the potential development of severe thunderstorms
with large hail and damaging winds.
Monitor weather conditions..Listen for updated statements.
If threatening weather approaches take immediate safety precautions.
Strong to severe thunderstorms continue to move eastward and will move out of the regions near midday.
Please refer to the latest public forecasts for further details.