Friday, May 3, 2013

Cooler Today, Elevated Fire Risk

High pressure centered near Prince Edward Island is helping to stall a frontal boundary along the Mississippi River and is pushing northeasterly flow into New England.  This will keep the region cooler than the past few days but we also stay dry.  We should get some beneficial rain in the 7-10 day range.  HOWEVER until then (and if it doesn't happen...longer) there is Elevated Fire Danger. See this NWS special weather statement. 

Friday-Sunday forecast
Low pressure off the Atlantic moved Southwest from the Canadian Maritime and backed the high pressure to the north.  This changed the wind direction so instead of a warm southwest flow we had a cool northeast flow.  The wind will remain from the NE today.  Currently temperatures look like this
2 m temps 5 am (image weatherbell)
Areas in Western CT and the Pioneer Valley of MA are the warmest.  These areas will be able to rise into the mid 60's today.  Here is the surface chart
WPC surface analysis 330 am 
High temperatures today 
09z RAP 2 m temp 3 pm (image weatherbell)
Eastern MA is low to mid 50's.  Central MA, Eastern CT and Northern RI are around 60.  Western MA and CT are near 65.  Here is a look at the low level winds at 2 pm
06z NAM 10 m winds, direction (image weatherbell)
Some cloud cover over the Cape this afternoon will be gone by early evening.  Regionwide temperatures will fall to the mid to upper 40's overnight.  On Saturday temperatures will be warmer, but relative humidity will be lower and winds will still be in the 15-20 mph range.  However I cannot rule out a spot shower in the CT River Valley
06z NAM hires 2 m temps 2 pm Sat (image weatherbell)
Here is the simulated radar for 2 pm
06z NAM hires simulated radar (image weatherbell)
That will be good for them because look how low the Relative Humidity is.  
06z NAM 2 m RH 2 pm Sat (image weatherbell)
Clear skies Saturday night will allow for temps to drop into the mid to upper 30's.  Temps rebound on Sunday as the wind direction begins to go more westerly.  
06z NAM hires 2 m temps Sun 2 PM (image weatherbell)
Cape and Islands are cooler.  More over the weekend, have a happy Friday.








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