Grantham, PA Warnings, Watches and Advisories

Do not drive vehicles through flooded areas. The water depth or fast flowing water/mud/debris from a flash flood will make road conditions unsafe. Do not rely soley on data presented here or other third-party websites - always check your official national and local weather service agency website, socials, radio and/or TV stations for making critical decisions related to weather events.

Please carefully read each posted Warning and Alert as it relates to the area(s) being affected. We may provide a wider range of issued severe weather warnings for surrounding cities and counties, so some alerts may not directly impact this location. This is done to help with preparing for severe weather that may overlap or be heading towards Grantham.

Use the Radar Maps link provided to understand the trajectory of a storm.

Severe Thunderstorm Warning issued July 16 at 10:44PM EDT until July 16 at 11:30PM EDT by NWS Mount Holly NJ

SVRPHI The National Weather Service in Mount Holly NJ has issued a * Severe Thunderstorm Warning for... New Castle County in northern Delaware... Northwestern Cumberland County in southern New Jersey... Salem County in southern New Jersey... Northwestern Gloucester County in southern New Jersey... South central Delaware County in southeastern Pennsylvania... * Until 1130 PM EDT. * At 1043 PM EDT, severe thunderstorms were located along a line extending from Cherry Hill to near Brantwood to Warwick, moving east at 45 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Damage to roofs, siding, trees, and power lines is possible. * Locations impacted include... Wilmington, Newark, Bridgeton, Middletown, Chester, Glassboro, Pennsville, Carneys Point, Elsmere, New Castle, Penns Grove, Salem, Woodstown, Alloway, Quinton, Swedesboro, Delaware City, Elmer, Newport, and Shiloh.

Beach Hazards Statement issued July 16 at 10:12PM EDT until July 17 at 11:00PM EDT by NWS Cleveland OH

* WHAT...High risk of rip currents expected. * WHERE...In Ohio, Lorain, Cuyahoga, Lake and Ashtabula Lakeshore Counties. In Pennsylvania, Northern Erie County. * WHEN...From 8 AM EDT Thursday through Thursday evening. * IMPACTS...Wind and wave action will cause currents on the lakeshore. Swimmers should not enter the water. Currents can carry swimmers away from shore through a sand bar and along structures extending out into the lake.

Flood Watch issued July 16 at 9:27PM EDT until July 17 at 12:00AM EDT by NWS Binghamton NY

* WHAT...Flash flooding caused by excessive rainfall continues to be possible. * WHERE...A portion of northeast Pennsylvania, including the following counties, Lackawanna, Luzerne and Wyoming. * WHEN...Until midnight EDT tonight. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. * ADDITIONAL DETAILS... - https://www.weather.gov/safety/flood

Flash Flood Warning issued July 16 at 7:38PM EDT until July 16 at 11:45PM EDT by NWS Mount Holly NJ

FFWPHI The National Weather Service in Mount Holly has issued a * Flash Flood Warning for... West Central Mercer County in central New Jersey... Southeastern Bucks County in southeastern Pennsylvania... * Until 1145 PM EDT. * At 738 PM EDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 0.5 and 1.5 inches of rain have fallen. Additional rainfall amounts up to 1 inch are possible in the warned area. Flash flooding is ongoing or expected to begin shortly. HAZARD...Flash flooding caused by thunderstorms. SOURCE...Radar. IMPACT...Flooding of small creeks and streams, urban areas, highways, streets, and underpasses as well as other drainage and low lying areas. * Some locations that may experience flash flooding include... Philadelphia, Trenton, Bensalem, Ewing, Pennington, Yardley, Newtown, Langhorne, Woodside, Langhorn, Levittown and Washington Crossing.

Heat Advisory issued July 16 at 4:12PM EDT until July 17 at 8:00PM EDT by NWS Mount Holly NJ

* WHAT...Heat index values up to 102 expected. * WHERE...Portions of northern Delaware, central, northern, and southern New Jersey, and southeast Pennsylvania. * WHEN...From 10 AM to 8 PM EDT Thursday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.

Heat Advisory issued July 16 at 4:12PM EDT until July 17 at 8:00PM EDT by NWS Mount Holly NJ

* WHAT...Heat index values up to 100 expected. * WHERE...Portions of northern and northwest New Jersey and east central and southeast Pennsylvania. * WHEN...From 10 AM to 8 PM EDT Thursday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.

Flood Watch issued July 16 at 12:03PM EDT until July 17 at 12:00AM EDT by NWS State College PA

* WHAT...Flash flooding caused by excessive rainfall is possible. * WHERE...A portion of central Pennsylvania, including the following areas, Adams, Columbia, Cumberland, Dauphin, Juniata, Lancaster, Lebanon, Montour, Northern Lycoming, Northumberland, Perry, Schuylkill, Snyder, Southern Lycoming, Sullivan, Union and York. * WHEN...From 5 PM EDT this afternoon through this evening. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Creeks and streams may rise out of their banks. Flooding may occur in poor drainage and urban areas. * ADDITIONAL DETAILS... - Thunderstorms with intense rainfall rates around 2 inches per hour could result in isolated to scattered instances of flash flooding. Rainfall amounts of 2 to 4 inches are possible within a short 1 to 3 hour duration with locally higher amounts up to 5 inches possible. - http://www.weather.gov/safety/flood

Flood Watch issued July 16 at 11:56AM EDT until July 17 at 3:00AM EDT by NWS Mount Holly NJ

* WHAT...Flash flooding caused by excessive rainfall continues to be possible. * WHERE...Portions of east central, northeast, and southeast Pennsylvania, including the following areas, in east central Pennsylvania, Berks, Lehigh and Northampton. In northeast Pennsylvania, Carbon and Monroe. In southeast Pennsylvania, Delaware, Eastern Chester, Eastern Montgomery, Lower Bucks, Philadelphia, Upper Bucks, Western Chester and Western Montgomery. * WHEN...From 3 PM EDT this afternoon through late tonight. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. * ADDITIONAL DETAILS... - Another round of heavy showers and thunderstorms is expected late this afternoon through this evening. Storms will be capable of dropping a quick 1 to 2 inches of rainfall within a 1 to 3 hour period leading to flash flooding. Isolated amounts of 2 to 4 inches will be possible. - http://www.weather.gov/safety/flood