* WHAT. Temperatures as low as 33 will result in frost formation. * WHERE. Portions of central, northern and northwest New Jersey and east central and southeast Pennsylvania. * WHEN. From 2 AM to 9 AM EDT Tuesday. * IMPACTS. Frost could kill sensitive outdoor vegetation if left uncovered.

* WHAT. Sub-freezing temperatures as low as 30 expected. * WHERE. Portions of central, northern, northwest and southern New Jersey and east central and southeast Pennsylvania. * WHEN. From 2 AM to 9 AM EDT Tuesday. * IMPACTS. Frost and freeze conditions will kill crops and other sensitive vegetation.

* WHAT. Temperatures as low as 34 will result in frost formation. * WHERE. In Delaware, Kent and Inland Sussex. In Maryland, Kent MD, Queen Annes, Talbot and Caroline. In New Jersey, Cape May. In Pennsylvania, Philadelphia. * WHEN. From 2 AM to 9 AM EDT Tuesday. * IMPACTS. Frost could kill sensitive outdoor vegetation if left uncovered.

* WHAT. Temperatures as low as 33 will result in frost formation. * WHERE. In Delaware, New Castle. In New Jersey, Salem, Gloucester, Camden and Northwestern Burlington. In Pennsylvania, Delaware, Eastern Montgomery and Lower Bucks. * WHEN. From 2 AM to 9 AM EDT Tuesday. * IMPACTS. Frost could kill sensitive outdoor vegetation if left uncovered.

* WHAT. Southwest winds 10 to 20 kt with gusts up to 25 kt and seas 3 to 6 ft expected. * WHERE. Coastal waters from Sandy Hook to Manasquan Inlet NJ out 20 nm and Coastal waters from Manasquan Inlet to Little Egg Inlet NJ out 20 nm. * WHEN. From 4 PM Tuesday to 6 PM EDT Wednesday. * IMPACTS. Conditions will be hazardous to small craft.

* WHAT. Southeast winds 15 to 20 kt with gusts up to 25 kt and choppy waters expected. * WHERE. Delaware Bay waters north of East Point NJ to Slaughter Beach DE and Delaware Bay waters south of East Point NJ to Slaughter Beach DE. * WHEN. From 2 PM to 8 PM EDT Tuesday. * IMPACTS. Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS. Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions.

* WHAT. South winds 10 to 20 kt with gusts up to 25 kt. * WHERE. Chesapeake Bay and adjoining estuaries north of Smith Point VA, and Tidal Potomac from Cobb Island MD to Smith Point VA. * WHEN. From 3 PM Tuesday to 6 AM EDT Wednesday. * IMPACTS. Conditions will be hazardous to small craft.

* WHAT. Southwest winds 10 to 20 kt with gusts up to 25 kt expected. * WHERE. Tidal Potomac River from Key Bridge to Smith Point VA, and Chesapeake Bay and adjoining estuaries north of Smith Point VA. * WHEN. From noon today to 2 PM EDT Wednesday. * IMPACTS. Conditions will be hazardous to small craft.

* WHAT. Temperatures as low as 34 will result in frost formation. * WHERE. Portions of central, north central, northeast, northern and southern Maryland, The District of Columbia, central, northern and northwest Virginia and panhandle West Virginia. * WHEN. Until 8 AM EDT this morning. * IMPACTS. Frost could kill sensitive outdoor vegetation if left uncovered.

The combination of low relative humidity values between 20 and 30 percent, southerly winds around 10-15 mph, gusting between 15 to 20 mph, and drying fuels will increase the potential for the spread of fires this afternoon. Residents are urged to exercise caution handling any potential ignition source. including machinery. cigarettes. and matches. Be sure to properly discard all smoking materials. Any dry grasses and tree litter that ignite will have the potential to spread quickly.

* WHAT. Sub-freezing temperatures as low as 30 expected. * WHERE. Portions of central, northern, northwest and southern New Jersey and east central and southeast Pennsylvania. * WHEN. Until 9 AM EDT this morning. * IMPACTS. Frost and freeze conditions will kill crops and other sensitive vegetation.

* WHAT. Temperatures as low as 33 will result in frost formation. * WHERE. Portions of central, northern and southern Delaware, northeast Maryland, southern New Jersey and southeast Pennsylvania. * WHEN. Until 9 AM EDT this morning. * IMPACTS. Frost could kill sensitive outdoor vegetation if left uncovered.

* WHAT. Southwest winds 10 to 20 kt with gusts up to 25 kt and seas 3 to 6 ft expected. * WHERE. Coastal waters from Sandy Hook to Manasquan Inlet NJ out 20 nm and Coastal waters from Manasquan Inlet to Little Egg Inlet NJ out 20 nm. * WHEN. From 4 PM this afternoon to 6 PM EDT Wednesday. * IMPACTS. Conditions will be hazardous to small craft.

* WHAT. Southeast winds 10 to 15 kt with gusts up to 25 kt and a moderate chop expected. * WHERE. Delaware Bay waters north of East Point NJ to Slaughter Beach DE and Delaware Bay waters south of East Point NJ to Slaughter Beach DE. * WHEN. From 2 PM this afternoon to 8 PM EDT this evening. * IMPACTS. Conditions will be hazardous to small craft.