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Posted at 05:00 AM ET, 01/16/2013

D.C. area forecast: Snow chances increasing for Thursday; Inauguration Day chill awaits

EXPRESS FORECAST

Today: Cloudy, showery. Low-to-mid 40s. | Tonight: Partly to mostly cloudy. 30s. | Tomorrow: 50-60% chance of snow, sleet and/or rain. Upper 30s to low 40s. | A Look Ahead | Get Express Forecast by E-mail

TODAY'S DAILY DIGIT

A somewhat subjective rating of the day’s weather, on a scale of 0 to 10


Sorry to say, but another day of cold, damp and gray. Anyone else starving for some sun? Get the Digit on Twitter | Discuss on Facebook

SNOW POTENTIAL INDEX

A daily assessment of the potential for *accumulating* snow for the next week on a 0-10 scale. More info


SPI: 4 ↑ - Thurs-Thurs night system could bring some wet snow if it doesn’t slide south. Minor accumulation not out of the question. Get the SPI on Twitter | Discuss on Facebook

FORECAST IN DETAIL


Suddenly, this week’s weather has gotten interesting. Not so much today, which is mostly a repeat of yesterday’s damp and dreary chill. But tomorrow could be a different story. Models have been trending north with a storm that was originally poised to bypass us to the south, raising the possibility of some wet snow Thursday into Thursday evening, that is if the storm doesn’t trend back to the south. Things quiet down Friday into the weekend, with a warmer Saturday in the works, and then a cold shot arriving just in time for Inauguration Day.

Today (Wednesday): Steadier early-to-mid morning rain should taper thereafter. But occasional showers or drizzle may linger into early afternoon. The sun remains mostly a no-show, with overcast ruling the skies one more day, except maybe some late-afternoon peeks of sun. Between the clouds and the dampness, highs in the low-to-mid 40s feel rather chilly. Confidence: Medium-High

Tonight: Breezes from the west and northwest try to dry out the air just a bit. Most everyone should see lows in the 30s - ranging from the low-to-mid 30s in the suburbs to the mid-to-upper 30s downtown - under mostly cloudy skies. Confidence: Medium-High

For related traffic news, check out Dr. Gridlock. Keep reading for the forecast through the weekend...

Tomorrow (Thursday): Models have trended north with the next storm system, which initially looked like it would stay to our south. That means we’re now facing a 50-60% chance of snow, sleet and/or rain, mainly midday into evening. With highs only in the upper 30s to low 40s and temperatures lower than that during any heavier precipitation, minor snow and/or sleet accumulations are possible, especially on grass and side roads. It’s also possible the northward trend reverses back to the south, leaving us with little in the way of precipitation. We’ll update later today as new model information comes in. Confidence: Low

Tomorrow night: That chance of snow, sleet and/or rain lingers into the evening before skies clear overnight. Colder air moving in behind the storm drops our lows to the mid-20s to low 30s. Confidence: Low

A LOOK AHEAD

Partly to mostly sunny skies provide a nice change of pace for Friday, but they are courtesy a cold high-pressure system that caps highs in the low-to-mid 40s. Friday night lows find their way back down to the mid-20s to low 30s. Confidence: Medium-High

The weekend starts off nicely on Saturday as flow from the southwest brings a substantial bump in temperatures with highs in the 50s, followed by not-too-cold Saturday night lows in the 30s. Sunday is shaping up as breezy and a bit cooler with highs in the mid-40s to near 50. Both days should feature partly to mostly sunny skies. Confidence: Medium

Inauguration Day still looks cold with highs in the 30s to near 40 and the potential for afternoon flurries. Confidence:Medium

By  |  05:00 AM ET, 01/16/2013

Categories:  Forecasts

 
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