PDA

View Full Version : Jul.23, 2013 - severe thunderstorms


tice23
07-23-2013, 11:21 AM
Not a big weather day by any, means, however there is currently a cell near london that has caught my attention, its only 20,000 ft, not producing hail but it is rotating significantly on radar, and has maintained a slight hook shape since it made landfall. no watches or warnings yet nor will there likely be, but it's atleast noteworthy IMO.

Thunderbolt
07-23-2013, 01:45 PM
Watch up for southern/southwestern Ontario

WWCN11 CWTO 231638
SEVERE WEATHER BULLETIN
ISSUED BY ENVIRONMENT CANADA
AT 12:38 PM EDT TUESDAY 23 JULY 2013.
---------------------------------------------------------------------
WATCHES/WARNINGS IN EFFECT FOR SOUTHERN ONTARIO...

SEVERE THUNDERSTORM WATCH FOR:
=NEW= WINDSOR - ESSEX - CHATHAM-KENT
=NEW= SARNIA - LAMBTON
=NEW= ELGIN
=NEW= LONDON - MIDDLESEX
=NEW= SIMCOE - DELHI - NORFOLK
=NEW= WOODSTOCK - TILLSONBURG - OXFORD COUNTY
=NEW= GODERICH - BLUEWATER - SOUTHERN HURON COUNTY
=NEW= STRATFORD - MITCHELL - SOUTHERN PERTH COUNTY.

RISK OF SEVERE THUNDERSTORMS THIS AFTERNOON.

AN AREA OF THUNDERSTORMS FROM LOWER MICHIGAN WILL MOVE ACROSS
PORTIONS OF THE ABOVE REGIONS THIS AFTERNOON. A FEW OF THESE
STORMS WILL BE CAPABLE OF PRODUCING DAMAGING WINDS AND LARGE
HAIL.

THIS IS AN ALERT TO THE POTENTIAL DEVELOPMENT OF SEVERE
THUNDERSTORMS WITH LARGE HAIL, DAMAGING WINDS OR HEAVY
RAINFALL..MONITOR WEATHER CONDITIONS AND LISTEN FOR UPDATED
BULLETINS.

---------------------------------------------------------------------
==DISCUSSION==
REFER TO YOUR LOCAL PUBLIC FORECAST FOR FURTHER DETAILS.

END/OSPC

tice23
07-23-2013, 02:17 PM
Then again, I could be wrong :P

A line of t-storms is forming over michighan and covers the width of the severe watch. The storms look slightly turbulent with tops of up to 35,000ft.

benjaminblizzard
07-23-2013, 03:06 PM
There are storms firing up just north of me that look fairly strong.

obwan
07-23-2013, 05:16 PM
The storm near millbrook could be putting downs some nice size hail, also has a nice hook to it and is showing rotation at the higher levels.

WayfaringStranger
07-23-2013, 05:30 PM
New Severe Thunderstorm warnings up for: Kaladar - Bannockburn - Bon Echo Park - Stirling - Tweed - Madoc

A line of strong thunderstorms is tracking eastward across or toward the Stirling-Tweed and Mamora area. These storms could have isolated wind gusts reaching the severe criteria of 90 km/hr.

Emergency Management Ontario recommends that you take cover immediately, if threatening weather approaches.

Strong wind gusts and hail can damage property and cause injuries. Local downpours can cause flash floods.

Go indoors and move away from windows and skylights. Avoid areas of the building that could be affected by falling debris such as tree limbs. Stay on the lower floor of your home or building and if the storm is particularly severe go to the basement.

Avoid driving through water on roads. Even shallow fast moving water across a road can sweep a vehicle away.

In Canada, lightning kills up to 10 people every year. Remember, when thunder roars, go indoors.

For more information:
http://www.emergencymanagementontario.ca/english/beprepared/beprepared.html .

Environment Canada continues to monitor the situation closely. Stay tuned to your local media or Weatheradio for further updates. If you would like to report severe weather, you can send an email to storm.ontario@<hidden>.

Updated or ended by 5:00 PM EDT.

WayfaringStranger
07-23-2013, 06:00 PM
New (in addition to the previously mentioned areas) Severe Thunderstorm Warning for:
Plevna - Sharbot Lake - Western Lanark County - Barry's Bay - Killaloe




A line of strong thunderstorms is tracking eastward through or toward the above regions. A few of these storms could be locally severe with winds gusts of 90 km/h and large hail.

Persons in or near this area should be on the lookout for adverse weather conditions and take necessary safety precautions. Watch for updated statements.

Please refer to the latest public forecasts for further details and continue to monitor the situation through your local radio and television stations or Weatheradio.

benjaminblizzard
07-23-2013, 06:40 PM
The heavens just opened up in TO. Heavy, quick downpour, canon thunder, followed by a double rainbow :D

DarkSky
07-23-2013, 08:33 PM
Big storm just developed right on top of me. Skies went dark so I checked the radar. 'Couple tiny little cells forming over the lake, 25k tops.

Nice dark cloud base with lots of movement in the clouds, tendrils hanging down swirling around (I shot some video that I'll try and do a time lapse with).

Right now (30mins later) it's developed into a nice tstorm line, lots of reds showing on radar, and 35k cloud tops.

Just had some heavy rain, no wind. Thunder/lightning is moderate right now, but it looks like the storms are moving to the ESE.

DarkSky
07-24-2013, 06:10 AM
About 7PM :

http://img825.imageshack.us/img825/3575/6xfr.jpg

http://img69.imageshack.us/img69/6281/ewoo.jpg

DarkSky
07-24-2013, 06:14 AM
Apparently there was a severe thunderstorm warning issued that I just found out about:


326
WUCN11 CWTO 232351
SEVERE THUNDERSTORM WARNING
ISSUED BY ENVIRONMENT CANADA
AT 7:51 PM EDT TUESDAY 23 JULY 2013.
---------------------------------------------------------------------
SEVERE THUNDERSTORM WARNING FOR:
=NEW= ST. CATHARINES - GRIMSBY - NORTHERN NIAGARA REGION
=NEW= NIAGARA FALLS - WELLAND - SOUTHERN NIAGARA REGION.

---------------------------------------------------------------------
==DISCUSSION==
UPDATED OR ENDED BY 8:40 PM EDT.

AT 7:40 PM, METEOROLOGISTS ARE TRACKING A SEVERE THUNDERSTORM
CAPABLE OF PRODUCING HAIL, STRONG WINDS AND LOCALLY HEAVY DOWNPOURS.

COMMUNITIES IN THE PATH INCLUDE: NIAGARA FALLS, FORT ERIE.

EMERGENCY MANAGEMENT ONTARIO RECOMMENDS THAT YOU TAKE COVER
IMMEDIATELY, IF THREATENING WEATHER APPROACHES.

STRONG WIND GUSTS AND HAIL CAN DAMAGE PROPERTY AND CAUSE INJURIES.
LOCAL DOWNPOURS CAN CAUSE FLASH FLOODS.

GO INDOORS AND MOVE AWAY FROM WINDOWS AND SKYLIGHTS. AVOID AREAS OF
THE BUILDING THAT COULD BE AFFECTED BY FALLING DEBRIS SUCH AS TREE
LIMBS. STAY ON THE LOWER FLOOR OF YOUR HOME OR BUILDING AND IF THE
STORM IS PARTICULARLY SEVERE GO TO THE BASEMENT.

AVOID DRIVING THROUGH WATER ON ROADS. EVEN SHALLOW FAST MOVING WATER
ACROSS A ROAD CAN SWEEP A VEHICLE AWAY.

IN CANADA, LIGHTNING KILLS UP TO 10 PEOPLE EVERY YEAR. REMEMBER,
WHEN THUNDER ROARS, GO INDOORS.

FOR MORE INFORMATION:
http://www.emergencymanagementontario.ca/ENGLISH/BEPREPARED/BEPREPARED.HTML
.

ENVIRONMENT CANADA CONTINUES TO MONITOR THE SITUATION CLOSELY. STAY
TUNED TO YOUR LOCAL MEDIA OR WEATHERADIO FOR FURTHER UPDATES. IF YOU
WOULD LIKE TO REPORT SEVERE WEATHER, YOU CAN SEND AN EMAIL TO
STORM.ONTARIO(AT)EC.GC.CA.

END/SPC

obwan
07-24-2013, 11:40 PM
Hey Darksky it was a nice storm started here with some pea sized hail mixed with giant rain drops then turned into a deluge with 40mph winds from the north.
One sidebar to the EC storm warning, it was posted at 7:51pm you posted at 7:33pm and said the storm had been going for a half and hour. By 7:51pm the main part had passed and the rain had stopped here. maybe not in niagara falls and fort erie.

davefootball123
07-25-2013, 12:43 AM
Hey Darksky it was a nice storm started here with some pea sized hail mixed with giant rain drops then turned into a deluge with 40mph winds from the north.
One sidebar to the EC storm warning, it was posted at 7:51pm you posted at 7:33pm and said the storm had been going for a half and hour. By 7:51pm the main part had passed and the rain had stopped here. maybe not in niagara falls and fort erie.

That is the issue with region(sub-region) based warnings, EC now adds communities impact into some of their warnings as you can see above, a good addition, but far from a fix to the issue. Although, having Niagara Falls and Fort Erie in the communities kind of contradicts their warning regions added in that warning, as both are in Southern Niagara Region, so the warning for Northern Niagara Region was basically a waste.

DarkSky
07-25-2013, 06:51 AM
Time lapse:

Jul.23/2013: Severe thunderstorm clouds time-lapse. St. Catharines, ON - YouTube