* WHAT. Flash flooding in urban areas caused by excessive rainfall is possible. * WHERE. District of Columbia. Portions of Maryland, including the following areas, Anne Arundel, Central and Southeast Howard, Central and Southeast Montgomery, Charles, Prince Georges and Southern Baltimore. Portions of Virginia, including the following areas, Arlington/Falls Church/Alexandria, Central and Southeast Prince William/Manassas/Manassas Park, Fairfax, King George, Spotsylvania and Stafford. * WHEN. From 8 PM EDT this evening through Sunday morning. * IMPACTS. Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Flooding may occur in poor drainage and urban areas. * ADDITIONAL DETAILS. - As the center of Tropical Storm Ophelia moves north along or near the Interstate 95 corridor, it will produce an area of enhanced rainfall. This is expected to result in 2 to 3 inches of rain, with high end amounts of 4 inches possible. This heavy rainfall will occur in a 1 to 2 hour period, and could result in flash flooding within the urban I-95 corridor. - Please visit www.weather.gov/safety/flood for flood safety and preparedness information

* WHAT. Up to one half foot of inundation above ground level in low lying areas due to tidal flooding. * WHERE. Shoreline along the tidal Potomac River in Prince Georges County in Maryland, and Fairfax, Stafford, and Central and Southeast Prince William Counties in Virginia. * WHEN. Until 5 AM EDT Sunday, especially around the time of high tide. * IMPACTS. Flooding of lots, parks, and roads with only isolated road closures expected.

* WHAT. One to two feet of inundation above ground level in low lying areas due to tidal flooding. * WHERE. Shoreline in the City of Alexandria and Arlington County. * WHEN. Until 7 AM EDT Sunday, especially around the time of high tide. * IMPACTS. Water is expected to approach buildings near King Street and Union Street. * ADDITIONAL DETAILS. Tides two to two and a half feet above normal. The next high tide at Alexandria is at 3:27 AM.

* WHAT. Around one foot of inundation above ground level expected in low lying areas due to tidal flooding. * WHERE. Shoreline in Anne Arundel County. * WHEN. From 8 PM this evening to 8 AM EDT Sunday, especially around the time of high tide. * IMPACTS. At 3.5 feet, water reaches the floor of the Maritime Museum in Annapolis, begins to cover Bowyer Road on the Naval Academy campus, and numerous businesses on Dock Street are flooded, along with the City Dock parking lot. * ADDITIONAL DETAILS. Tides one and a half to two feet above normal. The next high tide at Annapolis U.S. Naval Academy is at 1:13 AM.

* WHAT. Up to one foot of inundation above ground level in low lying areas due to tidal flooding. * WHERE. Shoreline in Calvert County. * WHEN. Until 2 AM EDT Sunday, especially around the time of high tide. * IMPACTS. At 3.0 feet, water is expected to reach backyards near 9th Street in North Beach, and could approach 9th Street. At 3.5 feet, yards are flooded near Charles Street and Williams Street in Solomons. Nearby parking lots and the streets themselves are covered by more than a half foot of water. * ADDITIONAL DETAILS. Tides one and a half to two feet above normal. The next high tide at Chesapeake Beach is at 11:26 PM. The next high tide at Solomons Island is at 9:37 PM.

* WHAT. One to two feet of inundation above ground level in low lying areas due to tidal flooding. * WHERE. Shoreline in the District of Columbia. * WHEN. Until 7 AM EDT Sunday, especially around the time of high tide. * IMPACTS. The unprotected area on the Southwest Waterfront at the DC Seafood Market is expected to flood. Water is expected to approach parts of the Hains Point Loop Road, but it will likely be closed. * ADDITIONAL DETAILS. Tides two to two and a half feet above normal. The next high tide at Washington Channel is at 3:09 AM.

* WHAT. Up to one foot of inundation above ground level in low lying areas due to tidal flooding. * WHERE. Shoreline in Charles and King George Counties. * WHEN. Until 2 PM EDT Sunday, especially around the time of high tide. * IMPACTS. At 3.5 feet, water reaches yards near Cobb Island and docks near Dahlgren. * ADDITIONAL DETAILS. Tides two to two and a half feet above normal. The next high tide at Dahlgren is at 10:01 PM. The next high tide at Indian Head is at 2:55 AM. The next high tide at Goose Bay is at 11:01 PM.

* LOCATIONS AFFECTED - Calvert * WIND - LATEST LOCAL FORECAST: Tropical storm force wind - Peak Wind Forecast: 20-30 mph with gusts to 50 mph, with the strongest winds along the immediate coast - THREAT TO LIFE AND PROPERTY THAT INCLUDES TYPICAL FORECAST UNCERTAINTY IN TRACK, SIZE AND INTENSITY: Potential for wind 39 to 57 mph - The wind threat has remained nearly steady from the previous assessment. - PLAN: Plan for hazardous wind of equivalent tropical storm force. - PREPARE: Remaining efforts to protect property should be completed. Prepare for limited wind damage. - ACT: Move to safe shelter while the wind remains hazardous. - POTENTIAL IMPACTS: Limited - Damage to porches, awnings, carports, sheds, and unanchored mobile homes. Unsecured lightweight objects blown about. - Many large tree limbs broken off. A few trees snapped or uprooted, but with greater numbers in places where trees are shallow rooted. Some fences and roadway signs blown over. - A few roads impassable from debris, particularly within urban or heavily wooded places. Hazardous driving conditions on bridges and other elevated roadways. - Scattered power and communications outages. * STORM SURGE - LATEST LOCAL FORECAST: Localized storm surge possible - Peak Storm Surge Inundation: The potential for 1-3 feet above ground somewhere within surge prone areas - Window of concern: through early Sunday morning - THREAT TO LIFE AND PROPERTY THAT INCLUDES TYPICAL FORECAST UNCERTAINTY IN TRACK, SIZE AND INTENSITY: Potential for storm surge flooding of 1-3 feet above ground - The storm surge threat has remained nearly steady from the previous assessment. - PLAN: Shelter against storm surge flooding of 1-3 feet above ground. - PREPARE: All flood preparations should be complete. Expect flooding of low-lying roads and property. - ACT: Stay away from storm surge prone areas. Continue to follow the instructions of local officials. - POTENTIAL IMPACTS: Unfolding - Potential impacts from the main surge event are unfolding. * FLOODING RAIN - LATEST LOCAL FORECAST: - Peak Rainfall Amounts: Additional 1-3 inches, with locally higher amounts - THREAT TO LIFE AND PROPERTY THAT INCLUDES TYPICAL FORECAST UNCERTAINTY IN TRACK, SIZE AND INTENSITY: Potential for moderate flooding rain - The flooding rain threat has remained nearly steady from the previous assessment. - PLAN: Emergency plans should include the potential for moderate flooding from heavy rain. Evacuations and rescues are possible. - PREPARE: Consider protective actions if you are in an area vulnerable to flooding. - ACT: Heed any flood watches and warnings. Failure to take action may result in serious injury or loss of life. - POTENTIAL IMPACTS: Significant - Moderate rainfall flooding may prompt several evacuations and rescues. - Rivers and tributaries may quickly become swollen with swifter currents and overspill their banks in a few places, especially in usually vulnerable spots. Small streams, creeks, canals, arroyos, and ditches overflow. - Flood waters can enter some structures or weaken foundations. Several places may experience expanded areas of rapid inundation at underpasses, low-lying spots, and poor drainage areas. Some streets and parking lots take on moving water as storm drains and retention ponds overflow. Driving conditions become hazardous. Some road and bridge closures. * TORNADO - LATEST LOCAL FORECAST: - Situation is somewhat favorable for tornadoes - THREAT TO LIFE AND PROPERTY THAT INCLUDES TYPICAL FORECAST UNCERTAINTY IN TRACK, SIZE AND INTENSITY: Potential for a few tornadoes - The tornado threat has remained nearly steady from the previous assessment. - PLAN: Emergency plans should include the potential for a few tornadoes. - PREPARE: If your shelter is particularly vulnerable to tornadoes, prepare to relocate to safe shelter before hazardous weather arrives. - ACT: If a tornado warning is issued, be ready to shelter quickly. - POTENTIAL IMPACTS: Limited - The occurrence of isolated tornadoes can hinder the execution of emergency plans during tropical events. - A few places may experience tornado damage, along with power and communications disruptions. - Locations could realize roofs peeled off buildings, chimneys toppled, mobile homes pushed off foundations or overturned, large tree tops and branches snapped off, shallow-rooted trees knocked over, moving vehicles blown off roads, and small boats pulled from moorings. * FOR MORE INFORMATION: - http://ready.gov/hurricanes

This product covers Eastern West Virginia, Central and Western Maryland, Northern and Northwestern Virginia, and the District of Columbia **Tropical storm conditions continue across Southern Maryland** NEW INFORMATION --------------- * CHANGES TO WATCHES AND WARNINGS: - None * CURRENT WATCHES AND WARNINGS: - A Tropical Storm Warning is in effect for Calvert and St. Marys * STORM INFORMATION: - About 150 miles south of Washington DC or about 180 miles south-southwest of Baltimore MD - 36.8N 77.3W - Storm Intensity 40 mph - Movement North or 360 degrees at 12 mph SITUATION OVERVIEW ------------------ Tropical Storm Ophelia will move north-northeast up the I-95 corridor through Sunday. Storm surge is expected to be the main threat to our area, especially along the western shore of the Chesapeake Bay and the tidal Potomac River where inundation of 1 to 3 feet is expected. In particular, St. Mary's County could see significant impacts from surge where 2 to 3 feet of inundation is likely. The highest water levels will be around high tides through early Sunday morning. Widespread additional rainfall amounts of 1 to 3 inches are expected, with localized amounts up to 4 inches possible. This may result in isolated instances of flooding, especially for low-lying and flood prone areas. The heaviest rain is most likely to occur through early Sunday morning. Tropical storm force wind gusts, likely between 40 and 55 mph, are expected over southern Maryland and the nearby waters south of North Beach MD along the Chesapeake Bay, and southeast of Cobb Island MD along the tidal Potomac River. The strongest winds will persist through this evening. Gusty winds and a saturated ground will likely cause downed trees and power outages, especially along the immediate western shoreline of the Chesapeake Bay. While the severe weather threat is low, a brief tornado or two cannot out be ruled out across southern Maryland through this evening. POTENTIAL IMPACTS ----------------- * SURGE: Potential significant impacts from the main surge event are unfolding along the western shore of the Chesapeake Bay and tidal Potomac River. If realized, these impacts include: - Localized inundation with storm surge flooding mainly along immediate shorelines and in low-lying spots, or in areas farther inland near where higher surge waters move ashore. - Sections of near-shore roads and parking lots become overspread with surge water. Driving conditions dangerous in places where surge water covers the road. - Moderate beach erosion. Heavy surf also breaching dunes, mainly in usually vulnerable locations. Strong rip currents. - Minor to locally moderate damage to marinas, docks, boardwalks, and piers. A few small craft broken away from moorings. * FLOODING RAIN: Potential impacts from the flooding rain are unfolding. If realized, these impacts include: - Moderate rainfall flooding may prompt several evacuations and rescues. - Rivers and tributaries may quickly become swollen with swifter currents and overspill their banks in a few places, especially in usually vulnerable spots. Small streams, creeks, canals, arroyos, and ditches overflow. - Flood waters can enter some structures or weaken foundations. Several places may experience expanded areas of rapid inundation at underpasses, low-lying spots, and poor drainage areas. Some streets and parking lots take on moving water as storm drains and retention ponds overflow. Driving conditions become hazardous. Some road and bridge closures. Potential impacts from the flooding rain are still unfolding across southern Maryland. Remain well guarded against locally hazardous flood waters having possible elevated impacts. * WIND: Potential impacts from the main wind event are unfolding. If realized, these impacts include: - Damage to porches, awnings, carports, sheds, and unanchored mobile homes. Unsecured lightweight objects blown about. - Many large tree limbs broken off. A few trees snapped or uprooted, but with greater numbers in places where trees are shallow rooted. Some fences and roadway signs blown over. - A few roads impassable from debris, particularly within urban or heavily wooded places. Hazardous driving conditions on bridges and other elevated roadways. - Scattered power and communications outages. * TORNADOES: Potential impacts from tornadoes are unfolding. If realized, these impacts include: - The occurrence of isolated tornadoes can hinder the execution of emergency plans during tropical events. - A few places may experience tornado damage, along with power and communications disruptions. - Locations could realize roofs peeled off buildings, chimneys toppled, mobile homes pushed off foundations or overturned, large tree tops and branches snapped off, shallow-rooted trees knocked over, moving vehicles blown off roads, and small boats pulled from moorings. PRECAUTIONARY/PREPAREDNESS ACTIONS ---------------------------------- * EVACUATIONS: Listen to local official for recommended preparedness actions, including possible evacuation. If ordered to evacuate, do so immediately. For those not under evacuation orders, assess the risk from wind, falling trees, and flooding at your location. If you decide to move, relocate to a safer location nearby. If you do not relocate, help keep roadways open for those under evacuation orders. * OTHER PREPAREDNESS INFORMATION: Now is the time to stay inside and away from windows. Listen for updates and be ready in case you lose electrical power. Keep a battery- powered radio, charged cell phone and flashlight handy. Keep your cell phone charged and in power-saving mode. If you lose power, use it sparingly and mainly for personal emergencies and check-ins. * ADDITIONAL SOURCES OF INFORMATION: - For information on appropriate preparations see ready.gov - For information on creating an emergency plan see getagameplan.org - For additional disaster preparedness information see redcross.org NEXT UPDATE ----------- The next local statement will be issued by the National Weather Service in Baltimore MD/Washington DC around 11:30 PM EDT, or sooner if conditions warrant.

* WHAT. Northeast winds 20 to 30 kt with gusts up to 40 kt and waves 2 to 4 ft. * WHERE. Tidal Potomac River from Key Bridge to Cobb Island MD, Chesapeake Bay north of North Beach MD, Patapsco River including Baltimore Harbor, Chester River to Queenstown MD, and Eastern Bay. * WHEN. Until midnight EDT tonight. * IMPACTS. Strong winds will cause hazardous waves which could capsize or damage vessels.

* WHAT. Northeast winds 15 to 25 kt with gusts up to 35 kt and waves 2 to 4 ft. * WHERE. Tidal Potomac River from Key Bridge to Cobb Island MD, Chesapeake Bay north of North Beach MD, Patapsco River including Baltimore Harbor, Chester River to Queenstown MD, and Eastern Bay. * WHEN. Until midnight EDT tonight. * IMPACTS. Strong winds will cause hazardous waves which could capsize or damage vessels.

This product covers Eastern West Virginia, Central and Western Maryland, Northern and Northwestern Virginia, and District of Columbia **OPHELIA NOW A TROPICAL DEPRESSION** NEW INFORMATION --------------- * CHANGES TO WATCHES AND WARNINGS: - All watches and warnings have been canceled * CURRENT WATCHES AND WARNINGS: - None * STORM INFORMATION: - About 140 miles south-southwest of Washington DC or about 170 miles south-southwest of Baltimore MD - 37.0N 77.6W - Storm Intensity 35 mph - Movement North or 355 degrees at 9 mph SITUATION OVERVIEW ------------------ The remnants of Ophelia will move north-northeast up the I-95 corridor through Sunday. Tidal flooding and flooding from heavy rain remain threats through Sunday. Please consult Flood and Coastal Flood alerts for more information. POTENTIAL IMPACTS ----------------- * SURGE: Potential significant impacts from the main surge event are ongoing along the western shore of the Chesapeake Bay and tidal Potomac River. If realized, these impacts include: - Localized inundation with storm surge flooding mainly along immediate shorelines and in low-lying spots, or in areas farther inland near where higher surge waters move ashore. - Sections of near-shore roads and parking lots become overspread with surge water. Driving conditions dangerous in places where surge water covers the road. - Moderate beach erosion. Heavy surf also breaching dunes, mainly in usually vulnerable locations. Strong rip currents. - Minor to locally moderate damage to marinas, docks, boardwalks, and piers. A few small craft broken away from moorings. * FLOODING RAIN: Additional impacts from flooding rain are still a concern. Remain well guarded against locally hazardous flood waters having further impacts of elevated potential. PRECAUTIONARY/PREPAREDNESS ACTIONS ---------------------------------- Allow extra time for emergency vehicles to reach you as they navigate road hazards. When clearing out fallen trees, be careful with chainsaws and axes. Always wear protective gear and keep others at a safe distance. Leaning trees and those which have fallen on roofs or power lines can be especially dangerous. If you are not in good health or unsure about what you are doing, have someone with tree cutting experience do the job. Never cut trees without a partner. If using a generator, avoid carbon monoxide poisoning by following instructions provided by the manufacturer. Operate your generator in a well-ventilated space outside of your living area and away from open doors and windows. Be alert for any lingering wind gusts which could take down weakened trees and/or power lines. Be alert for potential flooding from rising rivers and streams which may have yet to crest. Remain informed of the latest river forecasts and heed any flood watches and warnings. NEXT UPDATE ----------- As it pertains to this event. this will be the last local statement issued by the National Weather Service in Baltimore MD/Washington DC regarding the effects of tropical cyclone hazards upon the area.