Saturday starts with fog, drizzle and spotty showers with some pockets of freezing drizzle and freezing rain just north and west of the city as temperatures hover in the low 30s throughout the greater Springfield area. Conditions will continue to deteriorate through the day with heavier rain developing along with gusty winds.
A vigorous low pressure system will move across the Great Lakes into Canada over the weekend. A cold front will push through here late Saturday night but before it does so there will be a strong southerly flow out ahead of the front which brings the warmer temperatures today and early tonight. There will be a widespread area of precipitation ahead of the front as well. Rain quickly becomes steady with local downpours this afternoon and evening tapering off to showers before ending around midnight. Rainfall totals generally between 1 to 1.5 inches, with some local 2 inch totals possible. This amount of rain coupled with blocked storm drains due to the snow banks and frozen ground means the rainfall will runoff and not be absorbed into the ground and in some instances will create street flooding because of the blocked drains. This has prompted a Flood Watch to be issued by the National Weather Service that remains in effect into Sunday afternoon.
Although it will be a bit cooler on the backside of the front on Sunday temperatures do remain above normal as the air mass behind the front is not all that cold. Unfortunately a strong and gusty west wind will keep it blustery through the day despite a return to sunshine.
High pressure returns by Monday and it remains mild for this time of year. Our next chance for precipitation is Tuesday as low pressure approaches and with mild temperatures in place this is looking to be another rain event. Cooler air on the backside of the storm may change the precipitation to snow showers at night into Wednesday.
If you are attending the Patriots game Saturday night there is no doubt it will be wet and a gusty southerly wind will be in place. The upside, temperatures in the upper 40s to low 50s.
72 Hour Outlook:
Saturday: Areas of fog with showers this morning becoming a steadier rain this afternoon. Locally heavy downpours possible after mid afternoon. Becoming warmer and windy. Highs into the low and mid 50s. South winds gusting 35 to 40 mph by late in the day.
Saturday night: Windy and mild. Rain, locally heavy at times this evening, diminishing to showers before ending around midnight. Temperatures in the upper 40s to low 50s early, gradually taper back into the upper 30s to low 40s by morning. Gusty south winds to 40 mph possible, shifting southwest then west to northwest after midnight and diminishing to 12 to 22 mph.
Sunday: Partly cloudy early, becoming mostly sunny and windy. Not as mild. Highs in the low to mid 40s. West to northwest winds gusting 30 to 35 mph.
Sunday night: Mostly clear skies and cooler. Lows in the mid to upper 20s. Diminishing winds.
Monday and Monday night: Partly cloudy, becoming mostly cloudy overnight. Highs in the mid to upper 40s. Overnight lows in the mid 30s.