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Damp, Cool Pattern Locked in for Mid-Week
Dean Slams Yucatan Peninsula

Matt Ross @ 1:30 PM

The transcript from Steve Scolnik's Q & A on Hurricane Dean is now available.

Moist, cool and occasionally rainy weather will be on tap at least today and possibly into tomorrow. The additional rain is a welcome sight for the drought-stricken area. Meanwhile, Hurricane Dean moves across the Yucatan Peninsula this morning before a 2nd landfall on mainland Mexico overnight.

Today and Tonight

Forecast Confidence: HighShowers, Cool. Today will be cloudy, breezy and cool. Showers and occasional thunderstorms are likely throughout the day (70%), especially to the north in the morning and especially to the south later in the day, as a disturbance containing the remnants of Tropical Storm Erin passes by. Some of the storms this afternoon and evening could be strong. Afternoon highs will again be well below normal in the low 70s as a stalled out front likely remains to our south, keeping the cool air locked in. Tonight we will see occasional showers (50%) with overnight lows in the low to mid 60s.

Month-to-date temperature departure from normal for August through Sunday. Even with yesterday and today's temperatures running almost 10 degrees below normal, August will still be averaging 2.5 degrees above normal for the month. Image courtesy of MDA.


Forecast Confidence: HighMostly cloudy, a bit warmer? Wednesday will be partly to mostly cloudy, humid, and slightly warmer -- if the stalled out front to our south is able to drift north (as a warm front), and change the wind direction to southerly. There is a chance of showers (30%) with afternoon highs in the lower 80s (although they could be 5-8 degrees cooler if the warm front does not move to the north of our region). Refer to Jason's forecast for the rest of the week and weekend, which will turn noticeably hotter.

After a heavy shower, the sun briefly appears in Ashburn, Virginia at
7:00 pm yesterday, courtesy of Photographer, Kevin Ambrose.

Tropical Update: Dean

Dean, a catastrophic Category 5 hurricane just prior to landfall, is moving across the Yucatan peninsula after coming ashore near Chetumal, Mexico just north of the Belize border. Dean will weaken somewhat over land before reemerging tonight in the Bay of Campeche with further strengthening possible. Overnight, Dean will make a second Mexican landfall and soon after quickly weaken to a depression over the continent. The U.S., including southern Texas, appears to be out of harms way except for some gusty winds and showers. Stay tuned for further updates as necessary. In the meantime, although I do not personally endorse this activity, you can follow along here with a hurricane chaser's first hand observations from Chetumal, Mexico.

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