wpostServer: http://css.washingtonpost.com/wpost

The Post Most: Local

Posted at 05:00 AM ET, 02/26/2013

D.C. area forecast: Raw and rainy this afternoon into tonight; briefly mild tomorrow, then colder

EXPRESS FORECAST

Today: Cold rain developing midday. 40-45. | Tonight: Rain. 40-45. | Tomorrow: Mostly cloudy. 55-60. | 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


The rain only affects one rush hour today and we really need the rain after a dry February. 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: 2 (→) - Outside risk of wet flakes Tues midday and Wed night mainly far north and west suburbs. Rain favored elsewhere.. Get the SPI on Twitter | Discuss on Facebook

FORECAST IN DETAIL


A major storm system that delivered a blizzard to the Southern Plains aims to bring big rains to our area later today and tonight, triggering a Flood Watch. Warmer weather arrives tonight and especially tomorrow, before another round of cold weather returns late this week into the weekend.

Today (Tuesday): Not the best of days, but remind yourself that we need the rain! Cloudy with precipitation developing by late morning or early afternoon, which could be mixed with sleet or even some stray snowflakes (especially northwest of the District) before quickly transitioning and then staying all rain. Winds pick up in the afternoon to 15-20 mph out of the east with higher gusts, making it feel quite raw unfortunately. Highs in the low-to-mid 40s should be reached by late afternoon. Confidence: Medium-High

Tonight: Rain, possibly heavy at times during the evening rush hour toward midnight. It should then taper off during the overnight AM hours. Winds are still irksome in the evening toward midnight with 15-20 mph frequently and higher gusts, but then calming down gradually after midnight. The total precipitation expectation is between .75” and 1.25” with the heaviest amounts more likely north and west of the city. Temperatures hold steady in the low-to-mid 40s. Confidence: Medium-High

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

Tomorrow (Wednesday): Mostly cloudy with some scattered showers still possible, but the big story will be temperatures pushing up into the mid-to-upper 50s with some 60-degree readings possible. Winds come from the west and southwest at 5-10 mph with some higher gusts. Confidence: Medium-High

Tomorrow night: Colder air behind the storm system finally works into the area with temperatures falling into the mid-to-upper 30s under partly to mostly cloudy skies. Some unsettled weather associated with the upper level low part of the storm could trigger a few rain or snow showers. Let’s give it a 30% chance for now. Confidence: Low-Medium

A LOOK AHEAD

Thursday still holds the clouds and maybe a chance of a shower or flurry, especially in the morning. Highs in the upper 40s to low 50s with light winds. Thursday night turns even colder under partly cloudy skies with lows in the upper 20s in the outer suburbs to the low and middle 30s in the city. Confidence: Medium

Friday and the weekend are still set to experience a late-season cold outbreak with partly cloudy conditions. Highs range mainly through the low-and-mid 40s with lows in the 20s to low 30s. I wouldn’t be surprised to find some teens in the outer suburbs, especially to the west and north. As of right now, Sunday looks to be the coldest day with highs near 40 or into the very low 40s (we should normally be in the low 50s by this point in early March). Confidence: Medium

By  |  05:00 AM ET, 02/26/2013

Categories:  Forecasts

 
Read what others are saying
     

    © 2011 The Washington Post Company