Alert archive / Pennsylvania / Areal Flood Advisories in 2014
Areal Flood Advisory 376, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this areal flood advisory at Oct 16, 2014, 3:37 AM EDT for Monroe County, Northampton County, Pennsylvania. It was in force for 4 hr.
The area
The counties it named.
The facts
- Issued
- Oct 16, 2014, 3:37 AM EDT (07:37 UTC)
- Expired
- Oct 16, 2014, 7:30 AM EDT
- In force
- 4 hr
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
Counties Monroe County, PA, Northampton County, PA
The radar
The Philadelphia radar (KDIX), 132 km from the middle of the area, began a volume at 07:41 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, 7.6 hours before the alert went out and 207 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
- 282 J/kg
- Mixed-layer CIN
- -11 J/kg
- Mixed-layer LCL
- 598 m above ground
- 0-6 km bulk shear
- 48 kt
- 0-1 km storm-relative helicity
- 230 m²/s²
- 0-3 km storm-relative helicity
- 226 m²/s²
- Significant tornado parameter
- 0.3
- Supercell composite
- 2.9
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 Oct 15, 9:57 PM EDT, 5 hours 40 minutes earlier.
Area forecast discussion, Oct 15, 9:57 PM EDT, 5 hours 40 minutes before
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</html>Hazardous weather outlook, Oct 15, 4:02 PM EDT, 11 hours 35 minutes before
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</html>In the hours before
Special weather statement, Oct 16, 12:09 AM EDT, 3 hours 28 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1209 AM EDT THU OCT 16 2014
DEZ001>003-NJZ016>018-021-PAZ070-071-102-160515-
CAMDEN NJ-CUMBERLAND NJ-DELAWARE PA-EASTERN CHESTER PA-GLOUCESTER NJ-
INLAND SUSSEX DE-KENT DE-NEW CASTLE DE-PHILADELPHIA PA-SALEM NJ-
1209 AM EDT THU OCT 16 2014
...A STRONG THUNDERSTORM WILL AFFECT CENTRAL CHESTER...DELAWARE...
GLOUCESTER...KENT...NEW CASTLE...NORTHWESTERN CAMDEN...NORTHWESTERN
SUSSEX...SALEM...SOUTHWESTERN PHILADELPHIA AND WESTERN CUMBERLAND
COUNTIES...
AT 1205 AM EDT...A STRONG THUNDERSTORM WAS NEAR SEAFORD...MOVING
NORTH AT 60 MPH.
WIND GUSTS TO 50 MPH ARE POSSIBLE WITH THIS STORM.
VERY HEAVY RAIN WILL FALL FROM THIS STORM...AND WILL CAUSE WATER TO
POND ON ROADS AND FILL POOR DRAINAGE AREAS. THE RAIN CAN CAUSE RAPID
RISES ON SMALL STREAMS AND CREEKS.
THIS STORM WILL BE NEAR HOUSTON...HARRINGTON...FARMINGTON...AND
MILFORD AROUND 1220 AM...MAGNOLIA...RISING SUN...RIVERVIEW...AND KENT
ACRES AROUND 1230 AM...DOVER AND LITTLE CREEK AROUND 1240 AM.
LAT...LON 3865 7569 4001 7570 4000 7534 3993 7499
3921 7517 3946 7555 3957 7552 3959 7555
3947 7558 3927 7540 3906 7539 3901 7532
3893 7532 3888 7525 3863 7531
FORECASTER: HEAVENERThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 16, 12:09 AM EDT | Special Weather Statement | PHI | Gloucester, Salem | 66 min |
| Oct 16, 4:50 AM EDT | Special Weather Statement | PHI | Hunterdon, Mercer, Middlesex, Morris, Somerset, Sussex and 1 more | 85 min |
| Oct 16, 5:53 AM EDT | Special Weather Statement | PHI | Middlesex, Monmouth, Morris, Somerset, Sussex | 97 min |
| Oct 16, 3:29 PM EDT | Small Craft Advisory for Hazardous Seas | PHI | 12 hr | |
| Oct 16, 1:35 AM EDT | Areal Flood Advisory | PHI | Berks, Carbon, Lehigh, Monroe | 6 hr |
Nearby
Areal Flood Advisories in Pennsylvania, 2014Every areal flood advisory in 2014
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.