Event extended (time). Flash Flood Watch from 9/23/2021 4:00 AM to 9/24/2021 2:00 AM EDT for Southern PA. More information.
Interactive NWS Alert
Radar valid at 200 am EDT, Sep 24th 2021
Juniata-Tioga-Northern Lycoming-Sullivan-Southern Lycoming-Union-
Including the cities of Lancaster, Wellsboro, Lebanon, Trout Run,
Bloomsburg, Danville, Selinsgrove, Shamokin, Sunbury, Harrisburg,
Williamsport, Mansfield, York, Berwick, Laporte, Mifflintown,
Newport, Lewisburg, Pottsville, Gettysburg, Hershey, and Carlisle
617 PM EDT Wed Sep 22 2021
...FLASH FLOOD WATCH NOW IN EFFECT FROM 4 AM EDT THURSDAY THROUGH
LATE THURSDAY NIGHT...
The Flash Flood Watch is now in effect for
* 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, Tioga, Union and York.
* From 4 AM EDT Thursday through late Thursday night.
* Heavy rain is expected to develop in the pre-dawn hours on
Thursday, and then continue into Thursday evening. Rainfall totals
of 2 to 4 inches are forecast, with locally higher amounts up to 6
You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.
iNWS is an experimental service intended for NWS core partners,
including emergency managers, community leaders and other government