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5-day forecast
Forecast
As of 11:40 am EDT on September 5, 2008 This Afternoon...Partly sunny with a slight chance of showers and thunderstorms. Highs in the upper 80s. Southeast winds around 10 mph. Chance of rain 20 percent. Tonight...Showers with a slight chance of thunderstorms. Lows in the lower 70s. East winds 10 to 15 mph. Chance of rain near 100 percent. Saturday...Rain and scattered thunderstorms. Rain may be heavy at times. Strong winds with highs in the mid 70s. East winds 40 to 50 mph. Chance of rain near 100 percent.
Almanac Key: T = Trace of precipitation; MM = data not available
Flash Flood Watch Issued by the National Weather Service at 5:14 PM EDT on September 5, 2008 ... Flash Flood Watch now in effect from Saturday morning through Saturday evening... The Flash Flood Watch is now in effect for * portions of Maryland... the District of Columbia... Virginia and northeast West Virginia... including the following areas... in Maryland... Anne Arundel... Calvert... Carroll... Charles... Frederick MD... Harford... Howard... Montgomery... northern Baltimore... Prince Georges... southern Baltimore... St. Marys and Washington. The District of Columbia. In Virginia... Albemarle... Arlington/Falls Church/Alexandria... Augusta... Clarke... Culpeper... Fairfax... Fauquier... Frederick VA... Greene... King George... Loudoun... Madison... Nelson... Orange... Page... Prince William/Manassas/Manassas Park... Rappahannock... Rockingham... Shenandoah... Spotsylvania... Stafford and Warren. In northeast West Virginia... Berkeley and Jefferson. * From Saturday morning through Saturday evening * heavy rain associated with Tropical Storm Hanna will move northwest across the region this evening into Saturday. It appears at this time that the heaviest rains would fall late Friday night into late Saturday afternoon. This is largely dependent on the exact track of Hanna. However... along the path of this storm totals of 4 to 7 inches with localized amounts up to 10 inches are expected. Latest flash flood guidance indicates that amounts of 3 to 4 inches in 3 hours or less will cause small streams and creeks to flow out of their banks. * If heavy rain develops... expect small streams to overflow and low lying roads to flood. Do not ever drive into flood waters. A Flash Flood Watch means that conditions may develop that lead to flash flooding. Flash flooding is a very dangerous situation. You should monitor later forecasts and be prepared to take action should flash flood warnings be issued. Peloquin Back to top Tropical Storm Warning Issued by the National Weather Service at 5:00 PM EDT on September 5, 2008 Chesapeake-Bay-Sandy-Point-MD 38.85n 76.40w 500 PM EDT Fri Sep 5 2008 Chesapeake-Bay-Sandy-Point-MD 38.85n 76.40w 230 PM EDT Fri Sep 5 2008 ... Tropical Storm Warning remains in effect... ... New information... The position of Tropical Storm Hanna was updated. ... Areas affected... This statement recommends actions to be taken by persons in... central Maryland... northern Maryland... southern Maryland... the District of Columbia... central Virginia and northern Virginia. ... Watches/warnings... Please listen to NOAA Weather Radio or go to weather.Gov on the internet for more information about these additional hazards. Flash Flood Watch. ... Precautionary/preparedness actions... Preparations to protect life and property should be rushed to completion. Listen to NOAA Weather Radio. Bring inside any outdoor objects that can be picked up by the wind. ... Storm surge and storm tide... Coastal storm surge of 1 to 3 feet above normal tide levels can be expected along the western shore of the Chesapeake Bay and the tidal Potomac River. The highest water levels are expected during the high tidal cycle occurring late Saturday morning and afternoon. Areas that will be prone to coastal flooding on Saturday will be Edgewater in Anne Arundel County... Broomes Island and Benedict in Calvert County... areas along the Port Tobacco river in Charles County... and areas along the Wicomico river... Chaptico... Coltons Point... Breton Bay... St. Clements Bay... St. George Island... and areas along the St. Marys River in St. Marys County. Here are the times of high tides on Saturday for locations from north to south along the Chesapeake Bay... Havre de Grace... 2:44 PM Bowley Bar... 12:22 PM Fort McHenry... 11:31 am Fells Point... 11:40 am Annapolis... 10:01 am Chesapeake Beach... 8:44 am Broomes Island... 7:18 am Solomons Island... 6:53 am Point Lookout... 6:03 am And along the tidal Potomac River... Washington Channel... 1:34 PM Reagan National Airport... 1:50 PM Alexandria... 1:52 PM Quantico... 12:42 PM Port Tobacco river... 9:26 am Dahlgren... 8:34 am Coltons Point... 8:16 am Colonial Beach... 8:07 am Piney Point... 7:40 am ... Winds... Sustained winds of 30 to 40 mph with gusts up to 50 mph are possible beginning early Saturday morning and lasting into the evening. The strongest winds will occur east of the Interstate 95 corridor... with southern Maryland having the highest likelihood of strongest winds. Winds of this magnitude may cause trees and power lines to fall and cause scattered power outages. ... Probability of hurricane/tropical storm conditions... For Baltimore MD... There is a 25 percent chance of winds 39 mph or greater. For Annapolis MD... There is a 30 percent chance of winds 39 mph or greater. For Washington DC... There a 25 percent chance of winds 39 mph or greater. ... Inland flooding... Rain will begin across southern Maryland this evening. The heaviest rainfall is expected Saturday morning and afternoon. Rainfall totals of 4 to 8 inches are possible. In areas that experience heavy rain bands up to 10 inches of rain may occur. Tropical storms are capable of producing very heavy rainfall in a short amount of time. While it has been dry during the past month it will be possible for smaller creeks and streams in the region to rise above bankfull very quickly... creating a flash flood and a potentially life threatening situation. If you see flash flooding occurring... report this to law enforcement immediately. Motorists should be alert for flooding on roadways on Saturday. ... Tornadoes... There is a risk of isolated tornadoes along and east of the Interstate 95 corridor Saturday. Tornadoes associated with tropical systems most often occur in thunderstorms embedded in rain bands well away from the center and are not accompanied by hail or a lot of lightning. ... Next update... This statement will be updated by 600 PM. Back to top
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