Alert archive / Pennsylvania / Areal Flood Advisories in 2018
Areal Flood Advisory 311, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this areal flood advisory at Sep 28, 2018, 12:10 AM EDT for Sussex County, Warren County, New Jersey; 5 counties in Pennsylvania. It was in force for 13 hr.
The area
The counties it named.
The facts
- Issued
- Sep 28, 2018, 12:10 AM EDT (04:10 UTC)
- Expired
- Sep 28, 2018, 1:00 PM EDT
- In force
- 13 hr
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
Counties Sussex County, NJ, Warren County, NJ, Berks County, PA, Carbon County, PA, Lehigh County, PA, Monroe County, PA, Northampton County, PA
The radar
The Philadelphia radar (KDIX), 127 km from the middle of the area, began a volume at 04:13 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 nearest sounding before it
Brookhaven, NY (KOKX), launched 00:00Z, 4.2 hours before the alert went out and 210 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1225 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- -2 m²/s²
- 0-3 km storm-relative helicity
- 54 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this areal flood advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Philadelphia/Mount Holly wrote its last area forecast discussion before this areal flood advisory went out at Sep 27, 9:53 PM EDT, 2 hours 17 minutes earlier.
Area forecast discussion, Sep 27, 9:53 PM EDT, 2 hours 17 minutes before
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</html>Hazardous weather outlook, Sep 27, 3:45 PM EDT, 8 hours 25 minutes before
Hazardous Weather Outlook National Weather Service Mount Holly NJ 345 PM EDT Thu Sep 27 2018 DEZ001-MDZ008-012-NJZ001-007>010-012-013-015>019-PAZ054-055-060>062- 070-071-101>106-281945- New Castle-Cecil-Kent MD-Sussex-Warren-Morris-Hunterdon-Somerset- Middlesex-Western Monmouth-Mercer-Salem-Gloucester-Camden- Northwestern Burlington-Carbon-Monroe-Berks-Lehigh-Northampton- Delaware-Philadelphia-Western Chester-Eastern Chester- Western Montgomery-Eastern Montgomery-Upper Bucks-Lower Bucks- 345 PM EDT Thu Sep 27 2018 ...FLOOD WATCH IN EFFECT FROM 8 PM EDT THIS EVENING THROUGH LATE TONIGHT... This Hazardous Weather Outlook is for northern Delaware, northeast Maryland, central New Jersey, northern New Jersey, northwest New Jersey, southern New Jersey, east central Pennsylvania, northeast Pennsylvania and southeast Pennsylvania. .DAY ONE...This Afternoon and Tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flood Watch. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. DEZ002-003-MDZ015-019-020-NJZ020>023-027-281945- Kent-Inland Sussex-Queen Annes-Talbot-Caroline-Ocean-Cumberland- Atlantic-Cape May-Southeastern Burlington- 345 PM EDT Thu Sep 27 2018 This Hazardous Weather Outlook is for central Delaware, southern Delaware, northeast Maryland and southern New Jersey. .DAY ONE...This Afternoon and Tonight. A period of heavy rain overnight may lead to isolated areas of poor drainage flooding. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. DEZ004-NJZ014-024>026-281945- Delaware Beaches-Eastern Monmouth-Atlantic Coastal Cape May- Coastal Atlantic-Coastal Ocean- 345 PM EDT Thu Sep 27 2018 This Hazardous Weather Outlook is for southern Delaware, central New Jersey and southern New Jersey. .DAY ONE...This Afternoon and Tonight. There is a moderate risk for the formation of dangerous rip currents through this evening. A period of heavy rain overnight may lead to isolated areas of poor drainage flooding. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. ANZ430-431-450>455-281945- Delaware Bay waters north of East Point NJ to Slaughter Beach DE- Delaware Bay waters south of East Point NJ to Slaughter Beach DE- Coastal waters from Sandy Hook to Manasquan Inlet NJ out 20 nm- Coastal waters from Manasquan Inlet to Little Egg Inlet NJ out 20 nm- Coastal waters from Little Egg Inlet to Great Egg Inlet NJ out 20 nm- Coastal waters from Great Egg Inlet to Cape May NJ out 20 nm- Coastal waters from Cape May NJ to Cape Henlopen DE out 20 nm- Coastal waters from Cape Henlopen to Fenwick Island DE out 20 nm- 345 PM EDT Thu Sep 27 2018 This Hazardous Weather Outlook is for Atlantic coastal waters and Delaware Bay Waters. .DAY ONE...This Afternoon and Tonight. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures.
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 28, 1:44 AM EDT | Areal Flood Advisory | PHI | Hunterdon, Mercer, Morris, Somerset | 5 hr |
| Sep 28, 2:14 AM EDT | Small Craft Advisory | PHI | 16 hr | |
| Sep 28, 3:13 AM EDT | Areal Flood Warning | PHI | Burlington, Camden, Gloucester, Hunterdon, Mercer, Middlesex and 3 more | 4 hr |
| Sep 28, 3:23 AM EDT | Areal Flood Advisory | PHI | Atlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 4 more | 4 hr |
| Sep 28, 4:36 AM EDT | Areal Flood Warning | PHI | Middlesex, Monmouth, Ocean | 6 hr |
| Sep 28, 7:46 AM EDT | Areal Flood Warning | PHI | Hunterdon, Mercer, Morris, Somerset | 12 hr |
| Sep 28, 12:46 PM EDT | Areal Flood Advisory | PHI | Warren | 4 hr |
| Sep 28, 4:59 AM EDT | River Flood Warning | PHI | Chester | 7 hr |
| Sep 28, 5:33 AM EDT | River Flood Warning | PHI | Montgomery | 6 hr |
| Sep 28, 7:33 AM EDT | Areal Flood Warning | PHI | Bucks, Chester, Delaware, Montgomery, Philadelphia | 5 hr |
| Sep 28, 8:28 AM EDT | River Flood Warning | PHI | Chester, Delaware | 13 hr |
| Sep 28, 8:33 AM EDT | River Flood Warning | PHI | Chester, Montgomery, Philadelphia | 7 hr |
| Sep 28, 12:31 PM EDT | Areal Flood Warning | PHI | Montgomery, Philadelphia | 2 hr |
| Sep 28, 3:03 AM EDT | Areal Flood Advisory | PHI | New Castle | 6 hr |
| Sep 28, 5:12 AM EDT | River Flood Warning | PHI | New Castle | 99 min |
Nearby
Areal Flood Advisories in Pennsylvania, 2018Areal Flood Advisories in New Jersey, 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.