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Posted at 8:35 PM ET, 05/12/2008

Update: Rain Gradually Pulling Out

By Jason Samenow

*Flood warnings lifted except for Fairfax, Loudoun, Fauquier and Montgomery Counties*

The final bands of rain are rotating through the region. Precipitation will end from southwest to northeast between 10 p.m. and midnight. Continue to exercise caution as some streams are still rising. Turn around, don't drown.

By Jason Samenow  | May 12, 2008; 8:35 PM ET
Categories:  Updates  
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Parts of Daingerfield Island were under water late this afternoon, but by and large the Potomac was already receding by the time I got there at 4pm. The debris line was only about 3 feet back from the bank - much lower than I had expected. Standing water blocked the main parking area and I guess shut down Indigo Landing for the night, but I was surprised to see much less standing water up and down the GW Parkway than I had actually thought I'd see.

Posted by: ~sg | May 12, 2008 9:21 PM | Report abuse

Jason: you mentioned earlier that "We don't do weather for the print edition" of the Washington Post. Considering that your forecasts are a lot more accurate for the DC area than Accuweather's, or even the NWS version's, why not take over that responsibility?

Posted by: mcleaNed | May 12, 2008 9:34 PM | Report abuse

mcleaNed: Let me play devil's advocate here. Do we really want our beholden-to-no-one CWG team doing the WaPo print forecasts...a service for which they should undoubtedly be paid? Would the Gang then have as much time (and affection!) to lavish on us - or would they find their attention split? Just some things to think about, that's all.

Posted by: ~sg | May 12, 2008 9:39 PM | Report abuse

Up our way Seneca Creek is at bank full and Whites Ferry is closed.

Posted by: JT | May 12, 2008 9:50 PM | Report abuse

I'm only talking about the two paragraphs at the top left of the weather page; the national forecasts could be replaced with stroller pictures, for all I care. The Metro editors would just copy and paste the Weather Gang's DC forecast for the next day onto the page.

For example, tomorrow's forecast would read:

TUESDAY: Welcome relief. Partly sunny. Mid to upper 60s. Tomorrow it will be about 10 degrees cooler than average, but relative to today, a vast improvement. A good deal of sunshine will allow us to dry out. It will remain a bit breezy, with northerly winds at 10-15 mph.

WEDNESDAY may be the pick of the week with sunny skies and a high of 70-75. But a cold front approaches at night that may well stall over the region giving us on and off rain chances through the weekend. Confidence: Medium-High

Posted by: mcleaNed | May 12, 2008 10:20 PM | Report abuse

Are we really to believe that CWG is beholden-to-no-one and unpaid?

Posted by: curious-cwg-fan | May 12, 2008 10:21 PM | Report abuse

Just glad we are drying out for a bit. It's supposed to be April Showers bring May Flowers. Not May showers bring June flowers, otherwise the rest of the joke just does not work.

Also, is it me or does the wet weather also affect the pollen count by making things grow more? This is probably a basic question, so don't laugh at me too hard when answering.

Posted by: ep | May 12, 2008 11:29 PM | Report abuse

EP: I'm not a pollen expert, but I would think the greener, the more pollen potential. More water-->healthier vegetation-->more pollen. Pollen specialists/biologists, correct me if I'm wrong.

Posted by: Jason, Capital Weather Gang | May 13, 2008 8:48 AM | Report abuse


We have editors that make sure we type and spel reel nice, but other than that, what you see if what you get here.

Posted by: Jamie Jones, CapitalWeather Gang | May 13, 2008 9:08 AM | Report abuse

Generally, the greener and more healthy the vegetation, the more pollen, including wind-blown pollen. This will be particularly true of grasses later this spring.

However, the drier the weather, the more wind-blown pollen is in the air. One positive effect of all this rain is that it "washes out" the wind-blown tree and grass pollen.

When the rain quits and the grass blooms again there will be more grass pollen in the air.

One note on pollen. Pollen from showy flowers rarely if ever causes allergic reactions. This pollen is spread by bees, beetles, flies and other INSECTS and not carried on the wind. It is generally incorrect to blame fall pollen allergies on goldenrod or aster flowers which are insect-pollinated when the real culprits are the wind-borne ragweed and artemesia pollen. Similarly the flowering trees of spring are not the allergy culprits. Please don't blame your apples, azaleas, cherries, plums and dogwoods for your hay fever. The real culprits are the inconspicuous flowers of the wind-blown pollinators (birch, beech, oak, hickory, elm, ash and walnut).

Posted by: El Bombo | May 13, 2008 10:26 AM | Report abuse

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