Synopsis For The Tidal Potomac And Md Portion Of The Chesapeake Bay
Tropical Storm Hanna is expected to affect the waters late tonight and Saturday. Monitor the latest advisories and forecasts from the National Hurricane Center on this storm.
Forecast as of 6:26 PM EDT on September 5, 2008
Tidal Potomac From Key Bridge To Indian Head-
Tidal Potomac From Indian Head To Cobb Island-
Tropical Storm Warning in effect
Tonight
Se winds 5 to 10 kt with gusts up to 25 kt... increasing to 20 kt with gusts up to 25 kt late. Waves 1 to 2 ft. Showers with isolated tstms. Vsby 1 nm or less in tstms.
Sat
NE winds 25 to 35 kt with gusts up to 45 kt. Waves 2 to 3 ft. Showers. Vsby 1 nm or less.
Sat Night
NW winds 25 to 30 kt...diminishing to 10 to 15 kt with gusts up to 20 kt after midnight. Waves 2 to 3 ft...subsiding to 1 ft after midnight.
Sun
N winds 5 to 10 kt. Waves 1 ft or less.
Sun Night
S winds 5 kt. Waves less than 1 ft.
Mon
Se winds 5 to 10 kt. Waves 1 ft or less.
Mon Night
S winds 5 to 10 kt. Waves 1 ft or less.
Tue
NW winds 5 kt. Waves less than 1 ft. A chance of showers and tstms.
Wed
E winds 5 to 10 kt. Waves 1 ft or less. Winds and waves higher in and near tstms.
This statement recommends actions to be taken by persons with interests on the Chesapeake Bay and tidal Potomac River.
... Watches/warnings...
No additional hazards are in effect.
... Precautionary/preparedness actions...
All mariners should remain in port on Saturday. Boat owners should check their moorings.
... Winds...
Sustained winds of 34 knots with gusts up to 50 knots are possible beginning early Saturday morning and lasting into the late afternoon.
... Probability of hurricane/tropical storm conditions...
The probability of tropical storm conditions ranges from near 25 percent on the upper Potomac and Northern Bay to near 50 percent across the lower Potomac and Middle Bay.
... Tornadoes...
There is a risk of isolated tornadoes and waterspouts Saturday. Tornadoes and waterspouts 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.