PM Update: Chance of evening showers; sunny and windy Wednesday; Tour the National Weather Service

* Fire weather watch Wednesday morning through evening *


Radar & lightning: Latest regional radar shows movement of precipitation and lightning strikes over past two hours. Refresh page to update. Click here or on image to enlarge. Or see radar bigger on our Weather Wall.

Rain showers, mostly light, drifted through the region this afternoon as temperatures hovered around 70 degrees.  Widely scattered showers, and possibly a rumble of thunder,  are possible again this evening before gradual clearing.  Sunshine returns Wednesday, but temperatures are about 10 degrees lower than today and gusty winds make it feel even cooler.

Through Tonight: A break in the rain for the commute home, but a broken line of showers and possibly a thunderstorm may roll through the region between 7 and 10 p.m. from northwest to southeast.  The chance of rain is 30-40 percent, with the highest chances in the northern part of the region.  After 10 or 11 p.m., skies slowly clear, with lows from near 40 in our cooler suburbs to the upper 40s downtown.  Winds become out of the northwest, at 10-15 mph, with some gusts over 20 mph possible.

Tomorrow (Wednesday): Sunshine is back and blue skies should prevail.  But winds from the northwest at 10-20 mph, gusting to 30 mph, usher in cooler air.  Highs range from 59 to 64 (northwest to south) but when you step out of the sun into the shade, it feels markedly cooler.  The day may not require a heavy coat but a warm fleece or light weight jacket is probably a good call.  The combination of dry air and windy conditions has prompted the National Weather Service to hoist a Fire Weather Watch as conditions may become favorable for wildfires to spread in open areas.

See Matt Rogers’ forecast through the weekend. And if you haven’t already, join us on Facebook and follow us on Twitter . For related traffic news, check out Dr. Gridlock.

Bluebells at Bull Run Regional Park (Kathy Swendiman via Flickr)

Bluebells at Bull Run Regional Park (Kathy Swendiman via Flickr)

Pollen: Tree pollen is HIGH and climbing at 665.81 grains/cubic meter (yesterday was 104). Believe it or not, this count is still below average.

Today’s rain (through 4 p.m.): Reagan National Airport: 0.02″, Dulles 0.04″, BWI 0.02″.

Video tour of the National Weather Service Forecast Office in Sterling: Here’s an inside look at our local National Weather Service forecast office, which serves the Washington, D.C. and Baltimore region.  This video was released in the past week:

Also on Capital Weather Gang

Beautiful bluebells bloom along Bull Run (PHOTOS)