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October 2015 Discussion


snowlover2

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There's actually pretty good model agreement (for now) on a tropical system making landfall along the Gulf coast sometime around next weekend.  The question is where it goes and whether the timing will be right with the incoming trough to bring it into our area.  The 12z GFS looks similar to the 00z GGEM.

 

looks to impact or subforum during the big meetup on the 24th :weenie:

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40mph wind gusts with dews plunging through the teens under bright sunshine this afternoon.  Lots of dust in the air from the now open farm fields being scoured off some.

 

Dry weather continues.  Have had 0.03" of precip since Sep 19th.  However, it was very wet before that.  Had over 5" of rain in Sep.

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Weenie image for some of the Great Lakes Snowbelts...especially downwind of Lake Huron. 850mb temps of -6 to -8C and 925mb temps dipping below -2C overnight should support potentially accumulating snows in the higher terrain under any persistent bands. The Lake Huron potential intrigues me the most, as the best parameters there come Saturday night into early Sunday there (favorable time of day) and as the models suggest any band there could be stationary for a few hours. We'll see if any of these potential accumulations can be realized in the lake effect belts.

 

post-525-0-51695600-1444949768_thumb.png

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Dipped down to 42 last night, our coldest of the 2015 fall season. Gonna bundle up, grab some coffee, and go take a fall foliage walk, the best.

Looks like frost, to the possible first freeze, then warming back in the lower 70s to begin the week. Models hinting at some meaningful rain in the middle of next week. We'll see.

This has to be one of the driest first 15 days on October. Yeah?

 

 

 

Using records from Urbana...driest October 1-15 periods:

 

1934:  0.00"

1908:  T

1920:  T

1946:  T

1956:  T

1963:  T

2005:  0.02"

1889:  0.05"

1947:  0.05"

2015:  0.06"

1989:  0.08"

1957:  0.12"

1964:  0.12"

1987:  0.13"

1906:  0.15"

1996:  0.16"

1917:  0.20"

1895:  0.21"

1958:  0.22"

1899:  0.24"

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Weenie image for some of the Great Lakes Snowbelts...especially downwind of Lake Huron. 850mb temps of -6 to -8C and 925mb temps dipping below -2C overnight should support potentially accumulating snows in the higher terrain under any persistent bands. The Lake Huron potential intrigues me the most, as the best parameters there come Saturday night into early Sunday there (favorable time of day) and as the models suggest any band there could be stationary for a few hours. We'll see if any of these potential accumulations can be realized in the lake effect belts.

 

attachicon.gifRPM.png

 

Looks good for our London, Ontario posters.

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Kind of a bipolar day today. Showery and cloudy this morning and then windy and mostly sunny in the afternoon. Managed to get to 66°. Supposed to drop into the upper 30s later on.

The wind has been good at blowing the leaves around and creating little piles everywhere.

 

 

 

 

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Pretty impressive range in temps locally as winds settle off over certain areas. Clinton already at 39, while Moline and Savanna are still in the low 50s. Down to 45 here. Looking forward to the hard freeze tomorrow night.

Skipping the frost and headed straight for the hard freeze. P&C has me at 27 tomorrow night.

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00z GFS still bringing the tropical remnants up here after making landfall in Texas.

 

To give an idea of how rare this would be at this point in the year... the latest landfalling system to hit Texas was an unnamed storm in 1938, which made landfall near Galveston on October 17.  Once you get to Louisiana and eastward, it happens more often.

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I am not as impressed with 0z GFS, 18z had a big deepening low across the Northern Plains, absent on the 0z. (Standard disclaimer applies with timing, etc.) I am impressed by the gusts in Wisconsin today thanks in part to evaporative cooling under dying showers. 71 MPH gust off the Racine shoreline, 66 northwest of Milwaukee, and gusty winds elsewhere in the 40's.

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00z GFS still bringing the tropical remnants up here after making landfall in Texas.

 

To give an idea of how rare this would be at this point in the year... the latest landfalling system to hit Texas was an unnamed storm in 1938, which made landfall near Galveston on October 17.  Once you get to Louisiana and eastward, it happens more often.

0z GGEM keeps it across the south.

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ball-less trough is definitely the issue, makes sense given the general pattern

 

 

Timing is important.  We'll be heading into late October so you'd normally expect to get more impressive troughs than a month or two ago.

 

Storm is just offshore of Louisiana on the 00z ECMWF at the end of the run. 

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12z GFS seems to be taking the storm a little farther west going through the plains for the most part.

 

 

 

That would be so against climo it's not even funny.  In the context of the run though, it makes sense given the deep trough out west and strong ridge to the east.

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ILN has upgraded basically the nw half of the cwa to a freeze warning tonight. Freeze watch continues tomorrow night.

 

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE WILMINGTON OH
304 PM EDT FRI OCT 16 2015

INZ050-058-059-066-OHZ026-034-035-042>046-051>054-056-060>062-065-
070-170315-
/O.UPG.KILN.FR.Y.0005.151017T0600Z-151017T1400Z/
/O.NEW.KILN.FZ.W.0003.151017T0600Z-151017T1400Z/
/O.CON.KILN.FZ.A.0001.151018T0500Z-151018T1400Z/
WAYNE-FAYETTE-UNION-FRANKLIN-HARDIN-MERCER-AUGLAIZE-DARKE-SHELBY-
LOGAN-DELAWARE-MIAMI-CHAMPAIGN-CLARK-MADISON-LICKING-PREBLE-
MONTGOMERY-GREENE-FAIRFIELD-BUTLER-
INCLUDING THE CITIES OF...RICHMOND...CONNERSVILLE...LIBERTY...
BROOKVILLE...KENTON...ADA...CELINA...COLDWATER...WAPAKONETA...
ST. MARYS...NEW BREMEN...MINSTER...GREENVILLE...SIDNEY...
BELLEFONTAINE...MARYSVILLE...DELAWARE...TROY...PIQUA...
TIPP CITY...URBANA...SPRINGFIELD...LONDON...JEFFERSON...
PLAIN CITY...NEWARK...EATON...CAMDEN...DAYTON...KETTERING...
BEAVERCREEK...FAIRBORN...XENIA...LANCASTER...PICKERINGTON...
HAMILTON...MIDDLETOWN...FAIRFIELD...OXFORD
304 PM EDT FRI OCT 16 2015

...FREEZE WARNING IN EFFECT FROM 2 AM TO 10 AM EDT SATURDAY...
...FREEZE WATCH REMAINS IN EFFECT FROM LATE SATURDAY NIGHT
THROUGH SUNDAY MORNING...

THE NATIONAL WEATHER SERVICE IN WILMINGTON HAS ISSUED A FREEZE
WARNING...WHICH IS IN EFFECT FROM 2 AM TO 10 AM EDT SATURDAY.

* TEMPERATURES...LOWS AROUND 30.

* IMPACTS...SENSITIVE PLANTS LEFT OUTDOORS AND UNPROTECTED MAY BE
  DAMAGED OR KILLED IF NOT PROTECTED.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

REMEMBER...A FREEZE WARNING MEANS TEMPERATURES AT OR BELOW
32 DEGREES FAHRENHEIT...ARE IMMINENT OR HIGHLY LIKELY IN AND
CLOSE TO THE WARNED AREA.

REMEMBER...A FREEZE WATCH MEANS TEMPERATURES AT OR BELOW
32 DEGREES FAHRENHEIT...ARE POSSIBLE IN AND CLOSE TO THE WATCH
AREA.

 

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12z Euro generally agrees track wise with the 12z GGEM but is slower and stronger at landfall on the TX/LA border at hour 216 and by 240 is in west TN/N MS border.

 

 

Would be lying if I said that it hadn't crossed my mind about a way to turn this into a rare GOM tropical remnant snow event.  Looks like the northern system could have some flake potential in the Dakotas, etc.  Really though I just want some activity.

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