Alert archive / New Jersey / Areal Flood Advisories in 2018

Areal Flood Advisory 256, NWS Philadelphia/Mount Holly

August 21, 20184 counties in New Jersey; Northampton County, Pennsylvania

NWS Philadelphia/Mount Holly issued this areal flood advisory at Aug 21, 2018, 11:47 PM EDT for 4 counties in New Jersey; Northampton County, Pennsylvania. It was in force for 4 hr.

The area

The counties it named.

The facts

Issued
Aug 21, 2018, 11:47 PM EDT (03:47 UTC)
Expired
Aug 22, 2018, 3:45 AM EDT
In force
4 hr
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon

Counties Hunterdon County, NJ, Morris County, NJ, Somerset County, NJ, Warren County, NJ, Northampton County, PA

The radar

The Philadelphia radar (KDIX), 95 km from the middle of the area, began a volume at 03:49 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The office that day

Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 21, 9:34 PM EDTSpecial Marine WarningPHI116 min
Aug 21, 10:46 PM EDTAreal Flood AdvisoryPHIHunterdon, Warren4 hr
Aug 21, 11:18 PM EDTAreal Flood AdvisoryPHIMercer3 hr
Aug 22, 1:12 AM EDTAreal Flood AdvisoryPHISussex5 hr
Aug 22, 1:54 AM EDTAreal Flood AdvisoryPHIAtlantic, Burlington, Camden, Cumberland, Gloucester, Ocean and 1 more4 hr
Aug 21, 8:53 PM EDTAreal Flood AdvisoryPHIBerks, Chester, Montgomery5 hr
Aug 21, 10:16 PM EDTFlash Flood WarningPHIBerks, Chester, Montgomery7 hr
Aug 21, 11:08 PM EDTFlash Flood WarningPHIBucks, Lehigh, Northampton4 hr
Aug 22, 1:14 AM EDTAreal Flood AdvisoryPHIMonroe4 hr
Aug 22, 2:54 AM EDTAreal Flood WarningPHIBucks, Lehigh, Northampton8 hr
Aug 22, 4:36 AM EDTRiver Flood WarningPHIMontgomery6 hr
Aug 22, 5:14 AM EDTAreal Flood WarningPHIBerks, Chester, Montgomery4 hr
Aug 22, 10:04 AM EDTRiver Flood WarningPHIChester, Montgomery, Philadelphia5 hr
Aug 21, 8:05 PM EDTSpecial Weather StatementPHIKent, Sussex40 min
Aug 22, 12:32 AM EDTAreal Flood AdvisoryPHIKent, New Castle3 hr

Nearby

Areal Flood Advisories in New Jersey, 2018Areal Flood Advisories in Pennsylvania, 2018Every areal flood advisory in 2018

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.