Weather

853 
fxus61 kgyx 080648 
afdgyx 


Area forecast discussion 
National Weather Service Gray ME 
248 am EDT Monday Sep 8 2008 


Synopsis... 
low pressure will develop over the Ohio Valley later 
today...before moving up the Saint Lawrence River valley tonight 
and Tuesday. High pressure over the Great Lakes will build over 
New England for the rest of the work week. Low pressure will pass 
west of New England next weekend. 


&& 


Near term /through today/... 
relatively quiet for a change. After some patchy morning 
fog...mainly in the Connecticut River valley...it will be drier 
with lower dew points over the region. A weak impulse will move 
through Quebec province...bringing just a slight chance of a 
shower to northern portions today. Mav guidance accepted. 


Hyrdo...rivers remains high...but continue to slowly subside early 
this morning. 


&& 


Short term /tonight/... 
there will be more in the way of cloudiness tonight due to low 
pressure and associated cyclogenesis over the Saint Lawrence River 
valley. Wind fields will be strengthening ahead of this developing 
system which will set the stage for possible localized strong to 
severe thunderstorms on Tuesday. 


&& 


Long term /Tuesday through Sunday/... 
a strong cold front will approach the region Tuesday with the 
frontal passage to occur late Tuesday or Tuesday evening. Thunderstorms 
are expected to develop ahead of the front with some having 
potentially strong winds since a strong wind field develops during 
the afternoon and evening. Behind the front late Tuesday night and Wednesday a 
strong ridge of high pressure builds into the area and becomes anchored 
over the area through Thursday...very dry conditions and cold overnight 
temperatures expected under this high pressure sytem. By Friday a fast moving 
upper level short wave trough with an associated surface low will move 
across the eastern Great Lakes Friday and then through the St Lawrence Friday 
night and Sat. Models bring a good soaking rain with this system. 
Stayed cose to guidance for temperature forecast. 


&& 


Aviation /07z Monday through Friday/... 
short term...mainly VFR conditions across the region...with 
localized IFR/LIFR for a brief period in a few valley locations 
through early this morning. 
Long term...conditions should become MVFR and IFR Tuesday afternoon into 
the evening in advance of a strong cold front...behind the front 
conditions should rapidly become VFR and continue VFR through the 
rest of the week. 


&& 


Marine... 
short term...large swells produced by the remains of Hanna will 
gradually be subsiding today. Small craft advisories (for seas) 
will likely be lowered in a few hours. 


Long term...an increasing southerly wind flow is expected in 
advance of a strong cold front and conditions may reach Small Craft Advisory levels 
in the afternoon and into the evening. High pressure will settle over the 
area for middle to late week with winds/seas to be light. 
&& 


Gyx watches/warnings/advisories... 
ME...none. 
New Hampshire...none. 
Marine...Small Craft Advisory until 5 am EDT early this morning for 
anz150>154. 


&& 


$$