Last night was another brutal night of rainfall in the Mid-Atlantic/Northeast.
Strong t-storms prompted tornado Warnings last night near Annapolis.
About 5" of rainfall fell since 3:30pm
yesterday in the Balt/Wash area. ***MANY streets are closed, and do NOT
drive through standing water.**
More heavy rainfall today. Full forecast follows.
Be careful.
Rob
WEATHER SUMMARY
SYNOPSIS...
The
remnants of Tropical Storm Lee that developed last Friday south of
Louisiana and made landfall over the weekend merged with a frontal
system
that stalled over the U.S. That front has drawn
moisture in from both the Gulf and the Atlantic Ocean creating massive
rainfall along the U.S. East Coast. The system is being blocked from
exiting by Hurricane Katia, currently offshore
of the U.S., and fortunately forecast to move north-northeast into the
Atlantic (and allowing Lee's remnants to move away).
Meanwhile,
Heavy rainfall remains in the forecast from the Mid-Atlantic to New
England today and tonight as the remnants of Lee continue to weaken
over the Ohio Valley.
Rainfall totals Yesterday:
Washington National Airport: 2.82"
(Since Sept. 1 - 5.24")
BWI AIRPORT: 3.4" (Since Sept. 1 -
6.83")
Richmond, VA : 3.76" (record) - (Since Sept. 1 -
4.78")
Wallops Island, VA: 0.00" yesterday
Central Park, NY: 1.21" (Since Sept. 1 -
4.43")
Newark, NJ: 1.09" (Since Sept. 1-
4.29")
LOCAL Rainfall from Sunday until 7 a.m. today, Sept. 8, 2011:
Bowie, Md. 10 inches.
-
Isolated areas have received high amounts of rainfall - ***HEAVIEST
RAINFALL TODAY WILL BE IN A LINE FROM BALTIMORE TO WASHINGTON, EAST.
SAFETY TIPS FOR FLOODED ROADWAYS
Except
for heat related fatalities, more deaths occur from flooding than any
other hazard. Why? Most people fail to realize the power
of water. For example, six inches of fast-moving flood water can knock you off your feet.
IMPORTANT INFORMATION ABOUT FLASH FLOODING:
Most
flash floods are caused by slow moving thunderstorms, thunderstorms
that move repeatedly over the same area or heavy rains from tropical
storms
and hurricanes. These floods can develop within minutes or hours
depending on the intensity and duration of the rain, the topography,
soil conditions and ground cover.
Flash
floods can roll boulders, tear out trees, destroy buildings and
bridges, and scour out new channels. Rapidly rising water can reach
heights
of 30 feet or more. Furthermore, flash flood-producing rains can also
trigger catastrophic mud slides.
SAFETY TIPS:
* Avoid areas already flooded, especially if the water is flowing fast.
*
Do not attempt to cross flowing streams. Turn Around Don't Drown
* Road beds may be washed out under flood waters. NEVER drive through flooded roadways.
* Turn Around Don't Drown If your vehicle is suddenly caught in rising water, leave it immediately and seek higher ground.
* Do not camp or park your vehicle along streams and washes, particularly during threatening conditions.
* Be especially cautious at night when it is harder to recognize flood dangers.
*If flooding occurs, get to higher ground. Get out of areas subject to flooding. This includes dips, low spots, canyons, washes
etc.
VIDEO From YOUTUBE- Flooding in Historic Ellicott City, Maryland, Sept. 7, 2011, from the remnants of Tropical Storm Lee
BALTIMORE/WASHINGTON –
FLASH FLOODING THIS MORNING from North of Baltimore/PA Line,
south of Washington DC in a line.
**FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH LATE TONIGHT
*COASTAL FLOOD ADVISORY IN EFFECT UNTIL 8 PM EDT TONIGHT
...THE FLOOD WARNING REMAINS IN EFFECT UNTIL 1030 AM EDT FOR URBAN
AREAS AND SMALL STREAMS IN St. Marys...Charles...Calvert...Prince
Georges And Anne Arundel Counties
***Some Severe Flooding of Streams and Rivers:
1) Western Branch At Upper Marlboro Was At
20.72 Feet At 7 Am.
This is the highest level ever recorded at this site...which has been
in operation since 1985. More than seven feet of water was reported to
be
flowing over water street near this gauge location.
2) The Patuxent River Near Bowie
Is At 18.61 Feet At 7 am. This Is Approaching The Highest Level Since 1972.
3) Historic Downtown Ellicott City
experienced flooded roadways yesterday with more than 6" of water on the main roads.
Today:
Showers and possibly a thunderstorm today and tonight. Some of the storms could produce heavy rainfall. High near 80.
(Up to an inch possible, much higher amounts poss. In thunderstorms)
Low 68
Friday: Mostly cloudy, scattered showers and thunderstorms, with some clearing in PM high near 81. Low 68 (a quarter inch more rain poss.)
Saturday: Partly sunny, isolated Shower/t-storm, better chance in PM, with a high near 82. Low 65
Sunday: Mostly sunny, Scattered PM/night time showers and thunderstorms. high near 79. Low 65
Friday: Mostly cloudy, scattered showers and thunderstorms, with some clearing in PM high near 81. Low 68 (a quarter inch more rain poss.)
Saturday: Partly sunny, isolated Shower/t-storm, better chance in PM, with a high near 82. Low 65
Sunday: Mostly sunny, Scattered PM/night time showers and thunderstorms. high near 79. Low 65
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