UPDATE: 9:50 p.m.
No changes to the forecast:
>>> Dense Fog through mid-morning Tuesday.
>>> Windy with occasional rain Tuesday.
>>> Windy and much colder late Tuesday night with rain changing to freezing rain and sleet Wednesday morning.
>>> My confidence in our receiving accumulations of frozen precipitation on Wednesday is high, while amounts are less certain. You should expect travel problems Wednesday afternoon through Thursday morning. Take Care - Steve
Another Arctic Plunge; Ice/Snow Potential
5:00 p.m. Mon 2 March 2015
Look for temperatures to remain steady or slowly rise overnight as southerly winds kick in; the warmer air blowing over the cold, wet ground will make for some locally dense fog. Occasional light rain and a few showers are also possible.
Tuesday will be a windy and mild day with highs in the 50s east and north to 60s west and south. I expect little if any sunshine and there will be a chance of rain throughout the day. The chance for precipitation increases Tuesday night as an arctic cold front and deep mid-level trough approach.
The front passes sometime late Tuesday night or early Wednesday, and rain is expected to change to freezing rain and then sleet as the cold air deepens behind the front. It may eventually change to all snow before ending. Highs on Wednesday will remain in the 30s…and probably fall to the 20s before sunset, making it easy for the precipitation to stick to the already-cold ground.
Amounts of ice/snow are uncertain at this time; the mid-level trough is quite potent and it also has a good plume of high-level moisture associated with it; the situation will be drier closer to the surface and this makes for a difficult forecast as to amounts. The easier portion of the forecast is high confidence that we will get SOME frozen precipitation, so you should prepare for potential travel problems from early Wednesday through mid-morning Thursday.
Skies should clear in the wake of the trough’s passage allowing rapid melting Thursday afternoon, with warmer weather and some sunshine in the cards for this weekend.
Here are the numbers:
Tonight: 40% Rain, Foggy…..Temps 38-44 by morning
Tuesday: Windy, 50% Rain…..Highs 50s east and north to 60s west and south
Wednesday: Windy, 70% Ice or Snow…..30s a.m. falling to 20s p.m.
Thursday: Mostly Sunny…..24/42
Sunday: Mostly Sunny…..33/58
News 12 / Weather Authority