* 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. S winds 15 to 20 kt with gusts up to 30 kt and seas 4 to 6 ft expected. * WHERE. Sandy Hook NJ to Fire Island Inlet NY out 20 nm. * WHEN. From 6 PM this evening to 6 AM EDT Thursday. * IMPACTS. Conditions will be hazardous to small craft.

* WHAT. S winds around 15 kt with gusts up to 25 kt expected. * WHERE. Lower New York Bay and Sandy Hook Bay, near the harbor entrance. * WHEN. From 4 PM this afternoon to midnight EDT tonight. * IMPACTS. Conditions will be hazardous to small craft.

The combination of low relative humidity between 25 and 30 percent, south winds 10 to 15 mph gusting over 20 mph, and drying fuels, will increase the potential for the spread of fires from around midday until around sunset. Conditions may be even more conducive to fire growth and spread Wednesday afternoon and early evening following a cold frontal passage, with relative humidity falling to 25 to 30 percent and west winds gusting to 25 to 30 mph. This will depend on whether any wetting rain occurs with the frontal passage. People should exercise caution handling any potential ignition sources, including machinery, cigarettes, and matches. Any fires that ignite in dry grasses and tree litter will have the potential to spread quickly.

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.