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16-10-2011, 19:15   #1
 
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Active Cold Front - 17th October 2011

This may well turn into a complete flop but there seems to be a possibility that tomorrow's cold front passage will be accompanied by some very squally winds as well as some heavy rain in places

HIRLAM 850 temps and windspeed for tomorrow:



Very sharp temperature gradient aligned with the cold front so a chance that there may be some convective elements contained within the actual front which could lead to very strong winds locally as it moves over the country tomorrow afternoon. Small chance of thunder also.

One to watch.
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16-10-2011, 19:26   #2
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Looks powerful with 120 kt wind at 500 mbs and rapid thickness falls at the height of the daytime heating cycle, would not be surprised if there are some reports of thunder, hail and damaging wind gusts including but not confined to the Dublin region.

For those in the north, this will not just blow through with clearing to follow. The surface winds may actually ramp up overnight into Tuesday, so there may be two wind max periods, one around 1100h then another around 0300h Tuesday. Further south and east, the mid-day frontal passage will probably be the stronger of the two peaks. Timing this for 1200-1300h Galway and 1300-1400h Dublin (will be moving east at 70-80 knots).
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16-10-2011, 19:49   #3
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Cameras at the ready so! ... Might try have a time-lapse for the day!
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16-10-2011, 19:52   #4
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Originally Posted by Iancar29 View Post
Cameras at the ready so! ... Might try have a time-lapse for the day!
Damn you having your camera LOL I'm not getting my D90 till end of November
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16-10-2011, 19:55   #5
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Will we see snow in Blessington Co. Wicklow we are 600 + above sea level?
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16-10-2011, 20:01   #6
 
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Will we see snow in Blessington Co. Wicklow we are 600 + above sea level?
You mean 600 FEET. Snow only above around 400 METRES (1,300 feet) in the north.
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16-10-2011, 20:02   #7
fr wishy washy
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Ah well I live in hope.
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16-10-2011, 20:09   #8
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Damn you having your camera LOL I'm not getting my D90 till end of November
Well... ill be using my Brother's D200 for the time-lapse.

Wish i had gotten my GO Pro HD camera earlier!
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16-10-2011, 21:01   #9
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Finally some weather to talk about & watch out for that isn't in FI or MT's winter forecast
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16-10-2011, 22:14   #10
 
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Met Eireann's sea area forecast has gale force to strong gale force to storm force winds .... !
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17-10-2011, 09:38   #11
 
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SIGMET for thunderstorms in the northwest this morning.
Quote:
EISN SIGMET 02 VALID 170800/171000 EINN- EISN SHANNON FIR/UIR EMBD TS OBS WITHIN 40NM OF LINE N53 W015 TO N5415 W006 TOP FL280 MOV SE AT 10KT INTSF=
Valid 0800 - 1000 UTC. Shannon FIR/UIR.
Embedded thunderstorms observed within 40 nautical miles of a line from N53 W15 to N54.15 W06, tops 28,000 feet, moving southeastwards at 10 knots and intensifying.

Last edited by Su Campu; 17-10-2011 at 10:29.
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17-10-2011, 10:25   #12
 
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SIGMET for thunderstorms in the northwest this morning.


Valid 0800 - 1000 UTC. Shannon FIR/UIR.
Embedded thunderstorms observed within 40 nautical miles of a line from N53 W15 to N54.15 W06, tops 28,000 feet, moving southwestards at 10 knots and intensifying.
You mean moving southeast, right?
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17-10-2011, 10:25   #13
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FINNER CAMP(A) SW 05 LIGHT SLEET 8 90 1.3 1005
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17-10-2011, 10:28   #14
 
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You mean moving southeast, right?
Of course, thanks!
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17-10-2011, 10:29   #15
 
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FINNER CAMP(A) SW 05 LIGHT SLEET 8 90 1.3 1005
That's incorrect. It's been reading sleet and snow all morning, but it's due to the low visibility. Temp and dewpoint +8/+7 °C
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