Several Topics...
Strange Northern Weather...
Here is an image showing the temperatures for the usual biggest cities in Canada. But if you look higher, you will see I added some writing to show you what's going on there. The winds are from the NE for Inuvik (the one furthest to the west) they are from the N for the locality in the middle, Paulatuk and from the SW for the one further East, Kugluktuk. I never knew temperatures could get that high for a village so far to the north. I mean it is warmer there than in Oklahoma City, OK; New Orleans, LA; and even Orlando and Miami, FL!
Thunderstorm:
Yesterday at 12:15AM, I experienced a pretty strong line of thunderstorms for my region's standards. I gathered several images of Radars during the event... Before it started to rain winds quickly picked up to gusts of 45-50 mph for about 10 mins and then the rain came down. It was so heavy that at one point, I could only see about 400m (about 1300ft) from where I was standing. Which I think is pretty amazing for rain. There was also INTENSE lightning. When I say Intense, it was. There wasn't much cloud to ground lightning but a lot of cloud to cloud. I usually saw about 4-5 flashes in 5 seconds. Several houses affected by the line in several communities were burned down because of the lightning. There were some wind reports as well like this one...
27/06 06:45 PM-07:00 PM LAURENTIANS THE CONCEPTION (SEVERAL TREES
HAVE BEEN DAMAGED, INCLUDING VERY LARGE ONES)
Loop / Total Precipitation / Regional Radar / Close Up Radar
(click for larger images)
Cold front passed when I was writting this... The sky was unbelievably dark for the intensity of the line (only rain). At 8:30 the temperature was 21C and Dewpoint at 10C, 8:49.. Temperature 14C and Dewpoint 13C! Wind picked up too when the front passed but right now there's only light rain and almost no wind. It's strange because it looks exactly like the one I talked about above but MUCH weaker. Same Path and same length...
Radar and Echo Tops:
Steve
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"The weather is always interesting." - Jesse Ferrell
Widespread Storms
It's very humid and hot across the usual area with dewpoint in the high 60's andn low 70's. That's why storms are bubbling up all over the place...
FULL RESOLUTION LOOP OF US RADAR (3400 X 1700 PIXELS - 2.2MB)
This blog is only active when active weather is present in the red circle on the map above (click for larger image) which covers Southern Ontario, Southern Quebec, New York, Pennsylvania, Massachusetts, Vermont, Rhode Island, New Jersey and New Hampshire.
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Storm Reports for Today / Yesterday's Storm Reports / Risk of Severe Thunderstorms
(Click for larger image)
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RADAR IMAGES:
-- Southern Ontario Latest
-- Southern Quebec Latest
-- Northeast US Loop
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SEVERE THUNDERSTORMS WATCHES and MESOSCALE DISCUSSION
A SEVERE THUNDERSTORM WATCH ENCOMPASSES PRACTICALLY ALL OF SOUTHWESTERN QUEBEC AND SOUTHERN ONTARIO...
QUEBEC
WEATHER CONDITIONS FOR THESE REGIONS ARE FAVOURABLE FOR THE DEVELOPMENT OF SEVERE THUNDERSTORMS. SOME OF THESE STORMS COULD PRODUCE LARGE HAIL - DAMAGING WINDS - HEAVY RAIN AND INTENSE LIGHTNING. PERSONS IN THESE REGIONS SHOULD BE ON THE LOOKOUT FOR THESE WEATHER CONDITIONS AND LISTEN FOR SUBSEQUENT WATCHES AND PARTICULARLY WARNINGS WHICH WILL BE ISSUED IF SEVERE WEATHER THREATENS. THIS WATCH IS IN EFFECT FROM 1:20 PM TO 8:00 PM EDT.
A LOW PRESSURE SYSTEM OVER THE QUEBEC AND ONTARIO BORDER IS SLOWLY
TRACKING OVER THE PROVINCE OF QUEBEC. WITH THE WARM, HUMID AND
UNSTABLE AIRMASS OVER SOUTHERN QUEBEC, THUNDERSTORMS POTENTIALLY
SEVERE COULD DEVELOP DURING THE DAY AND IN THE EVENING OVER CONCERNED AREAS.
ONTARIO
Severe thunderstorms are possible early this afternoon and evening.
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.
Weather radar and satellite show scattered severe thunderstorms are developing in the hot and humid air. These storms are capable of producing torrential rain and damaging wind gusts up to 100 km/h.
A cold front currently over northeastern Ontario will sweep across southern Ontario today triggering thunderstorms early this afternoon and evening in the hot and humid airmass. A few thunderstorms will also trigger before the advance of the cold front over southwestern and southcentral Ontario along lake breeze boundaries which will form off of Lake Erie and Lake Ontario.
There is potential that some of these thunderstorms may become severe with main threats being damaging winds...Torrential downpours...And intense lightning. Hail is also possible and there is a lesser risk of a tornado.
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US:
THE NWS STORM PREDICTION CENTER HAS ISSUED A
SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
WESTERN CONNECTICUT
WESTERN MASSACHUSETTS
NORTHERN NEW JERSEY
CENTRAL AND EASTERN NEW YORK
CENTRAL AND EASTERN PENNSYLVANIA
SOUTHERN VERMONT
EFFECTIVE THIS WEDNESDAY AFTERNOON AND EVENING FROM 100 PM UNTIL
800 PM EDT.
HAIL TO 1.5 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70
MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.
THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 95
STATUTE MILES NORTH AND SOUTH OF A LINE FROM 20 MILES EAST
NORTHEAST OF PITTSFIELD MASSACHUSETTS TO 40 MILES SOUTHWEST OF
DUBOIS PENNSYLVANIA. FOR A COMPLETE DEPICTION OF THE WATCH SEE
THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU6).
REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE
FAVORABLE FOR SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH
AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR
THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS
AND POSSIBLE WARNINGS. SEVERE THUNDERSTORMS CAN AND OCCASIONALLY
DO PRODUCE TORNADOES.
DISCUSSION...SCATTERED THUNDERSTORMS ARE INCREASING IN COVERAGE
THROUGHOUT REGION OF MOIST/UNSTABLE AIR MASS ACROSS PARTS OF NY/PA.
THESE STORMS ARE LIKELY TO PERSIST THROUGH THE AFTERNOON AND SPREAD
EASTWARD INTO WESTERN NEW ENGLAND. DESPITE RATHER WEAK VERTICAL
SHEAR...ISOLATED MULTICELL STORMS WILL BE CAPABLE OF DAMAGING WINDS
AND HAIL.
AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60
KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM
MOTION VECTOR 27025.
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"The weather is always interesting." - Jesse Ferrell
Derecho? - Yes
Is this a Derecho? (Click for Larger Image)
Is sure looks like it. I am also wondering about the line in front of the whole complex (just ahead); is it a gust front? Everytime I see a Derecho I see an associated line in front so that's why I think it's a Derecho. Here is the associated Mesoscale Discussion...
MESOSCALE DISCUSSION 1289
NWS STORM PREDICTION CENTER NORMAN OK
0555 PM CDT TUE JUN 26 2007
AREAS AFFECTED...NERN NM...CENTRAL/WRN PORTIONS TX PANHANDLE...TX
SOUTH-PLAINS...CENTRAL/WRN PORTIONS OK PANHANDLE...PARTS OF
S-CENTRAL/SERN CO.
CONCERNING...SEVERE THUNDERSTORM WATCH 452...
VALID 262255Z - 270100Z
THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 452
CONTINUES.
ADDITIONAL WW WILL BE REQUIRED FARTHER S ACROSS PORTIONS
E-CENTRAL/SERN NM AND SWRN PANHANDLE/SOUTH-PLAINS AREA OF W TX.
SFC ANALYSIS SHOWS FRONTAL ZONE FROM N-CENTRAL KS SWWD ACROSS SERN
CO NEAR AR RIVER...WITH LOWER THETAE AND SOMEWHAT MORE NLY FLOW
COMPONENT TO ITS N. ENELY TO ELY FLOW EXISTS BETWEEN FRONT AND
CONFLUENCE LINE ANALYZED ROUGHLY ALONG SRN BORDER OF OK PANHANDLE.
LOW LEVEL SHEAR PROFILES N OF CONFLUENCE LINE FAVOR SWD TO SEWD
MOVING STORMS WITH INTERMITTENT SUPERCELL STRUCTURES...AND
CONTINUING POTENTIAL FOR OCCASIONAL LARGE HAIL AND STG-SVR GUSTS.
STRONG DIRECTIONAL SHEAR WILL CONTINUE S OF ONGOING CONVECTION IN
ERN NM AND W TX WITH SLY SFC FLOW BENEATH NLY MIDLEVEL WINDS.
ENLARGED LOW LEVEL HODOGRAPHS E OF TX/NM BORDER INDICATE SUPERCELL
POTENTIAL AND FAVORED SWWD MOTION FOR DISCRETE STORMS...WITH 0-3 KM
SRH 150-300 J/KG AND WEAKENING WITH WWD EXTENT. MODIFIED SOUNDINGS
SUGGEST DEEP AND WELL-MIXED BOUNDARY LAYER AHEAD OF NERN NM/TX
PANHANDLE ACTIVITY. THESE FACTORS WILL SUPPORT NOT ONLY CONTINUED
RISK OF LARGE HAIL...BUT ALSO INCREASING THREAT OF DAMAGING GUSTS.
COLD POOL DEVELOPMENT WILL BECOME BETTER ORGANIZED AS CONVECTION
EVOLVES UPSCALE INTO MCS. RESULTING COMPLEX WILL MOVE SWD OUT OF WW
WELL BEFORE SCHEDULED 04Z EXPIRATION...WITH FORWARD PROPAGATION
POTENTIALLY FORCING ADDITIONAL DEVELOPMENT DESPITE STRONGER SBCINH
ACROSS SERN NM.
..EDWARDS.. 06/26/2007
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WIND PROB / RISK OF SVR TSTRMS
(click for larger image)
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I will write another blog tomorrow on the potential severe thunderstorms across the usual area I talk about...
FULL RESOLUTION LOOP OF US RADAR (3400 X 1700 PIXELS - 2.2MB)
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"The weather is always interesting." - Jesse Ferrell
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Updated: 1:54 AM GMT on June 27, 2007
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3-4 Supercells south of Brandon, MB
I don't know if I am right but I see 3 supercells in this radar loop as well as 4 tornadoes. There are Tornado Warnings for all three cells. I have never seen so many supercells one beside each other and they are probably all producing tornadoes because of the visible hooks. Location: Just around Brandon, Manitoba. The same region yesterday saw 4 tornadoes as well. One was F4... I don't know about the others.
This is a quick blog entry because as soon as I saw that, I knew it was something very unusual and I would like to have it in my archive. Comments greatly appreciated to know if I am right about this "very unusual" event.
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"The weather is always interesting." - Jesse Ferrell
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Updated: 2:20 AM GMT on June 24, 2007
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Severe Thunderstorms - June 19, 2007
First of all, I was away for the passed three weeks so if any severe weather events occurred, well, I wasn't near a computer the whole time. There were probably some events in the red circle below in the past weeks because I don't think it's possible to have 3 weeks of nothing. Anyways now I am back and today there is some severe storms to talk about and it's only 12:40 as I'm writing this.
FULL RESOLUTION LOOP OF US RADAR (3400 X 1700 PIXELS - 2.2MB)
This blog is only active when active weather is present in the red circle on the map above (click for larger image) which covers Southern Ontario, Southern Quebec, New York, Pennsylvania, Massachusetts, Vermont, Rhode Island, New Jersey and New Hampshire.
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Storm Reports for Today / Yesterday's Storm Reports / Risk of Severe Thunderstorms
(Click for larger image)
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RADAR IMAGES:
-- Southern Ontario Latest
-- Southern Quebec Latest
-- Northeast US Loop
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"The weather is always interesting." - Jesse Ferrell
