From PhillyVoice · · 1m 30s
Rare September Nor'easter Threatens Philly Region
Philly faces rare September nor'easter with flash flood risks amid record warning year
In brief
Philly faces rare September nor'easter with flash flood risks amid record warning year Philly region could see prolonged coastal flooding from a September nor'easter, not typical flash flooding from heavy rain Originally reported by PhillyVoice.
Rare September Storm Approaching
A rare September nor'easter is forecast to hit the Philly region with coastal flooding risks this week.
Early Season Storm Alert
Meteorologists note this storm hits earlier than typical for coastal flooding events but isn't unprecedented.
Record Flash Flood Year
The Philly area has received 156 flash flood warnings this year, exceeding the annual average of 63.
Flash Flood vs. Coastal Flooding
This storm causes longer-duration flooding rather than quick flash floods that trigger immediate warnings.
Delaware River Flooding Risk
Water could be pushed up the Delaware Bay into the tidal portions of the Delaware River, causing flooding in Philadelphia.
Temperature Drop Expected
Temperatures are expected to dip below average with highs in the 60s for the rest of the week.
Storm Origin and Path
The storm is forming off the coast of the Carolinas and Virginia with potential impacts on the East Coast.
Coastal Advisory Timeline
Coastal flood advisories for New Jersey and Delaware start Tuesday night with potential for moderate flooding by Wednesday afternoon.
Flash Flood Warning Context
This year's record 156 flash flood warnings exceed the previous record of 113 set in 2018.
Longer-Duration Flooding
The storm's prolonged rainfall could lead to flooding in Philadelphia without triggering typical flash flood warnings.
The bottom line
Philly region could see prolonged coastal flooding from a September nor'easter, not typical flash flooding from heavy rain
