Alert archive / Pennsylvania / Areal Flood Advisories in 2014

Areal Flood Advisory 263, NWS Philadelphia/Mount Holly

May 1, 20145 counties in Pennsylvania

NWS Philadelphia/Mount Holly issued this areal flood advisory at May 1, 2014, 5:31 AM EDT for 5 counties in Pennsylvania. It was in force for 4 hr.

The area

The counties it named.

The facts

Issued: May 1, 2014, 5:31 AM EDT (09:31 UTC)
Expired: May 1, 2014, 9:30 AM EDT
In force: 4 hr
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon

Counties Bucks County, PA, Carbon County, PA, Lehigh County, PA, Monroe County, PA, Northampton County, PA

The radar

The Philadelphia radar (KDIX), 122 km from the middle of the area, began a volume at 09:33 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, 9.5 hours before the alert went out and 215 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 487 m above ground
0-6 km bulk shear: 35 kt
0-1 km storm-relative helicity: 376 m²/s²
0-3 km storm-relative helicity: 684 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

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 May 1, 3:47 AM EDT, 1 hour 44 minutes earlier.

Area forecast discussion, May 1, 3:47 AM EDT, 1 hour 44 minutes before

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Hazardous weather outlook, May 1, 3:55 AM EDT, 1 hour 36 minutes before

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In the hours before

Local storm report, May 1, 12:08 AM EDT, 5 hours 23 minutes before

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1208 AM EDT THU MAY 01 2014

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0147 PM     FLOOD            EAST COVENTRY TWP       40.20N  75.62W
04/30/2014                   CHESTER            PA   TRAINED SPOTTER

            PIGEON CREEK OVERFLOW...HALTEMAN ROAD AND KOLP ROAD
            INTERSECTION IS FLOODED.

0345 PM     FLOOD            MILFORD TWP             40.42N  75.41W
04/30/2014                   BUCKS              PA   EMERGENCY MNGR

            STATE ROAD 663 MILDFORD TWP IS CLOSED DUE TO FLOODING

0345 PM     FLOOD            NEW BRITAIN TWP         40.32N  75.20W
04/30/2014                   BUCKS              PA   EMERGENCY MNGR

            COUNTY LINE ROAD IN NEW BRITAIN TWP IS CLOSED DUE TO
            FLOODING

0609 PM     FLOOD            HOPEWELL TWP            40.35N  74.78W
04/30/2014                   MERCER             NJ   TRAINED SPOTTER

            ROADS FLOODED THROUGHOUT THE TOWNSHIP.

0611 PM     FLOOD            READINGTON TWP          40.57N  74.80W
04/30/2014                   HUNTERDON          NJ   TRAINED SPOTTER

            ROUTE 22 CLOSED DUE TO FLOODING.

0612 PM     FLOOD            STEVENSVILLE            38.98N  76.31W
04/30/2014                   QUEEN ANNE'S       MD   TRAINED SPOTTER

            SEVERAL AREAS OF HIGH STANDING WATER THROUGHOUT KENT
            ISLAND.

0648 PM     FLOOD            AVONDALE                39.82N  75.78W
04/30/2014                   CHESTER            PA   EMERGENCY MNGR

            AN APARTMENT COMPLEX WAS EVACUATED DUE TO FLOODING

0655 PM     FLOOD            MODENA                  39.96N  75.80W
04/30/2014                   CHESTER            PA   EMERGENCY MNGR

            AN APARTMENT COMPLEX WAS EVACUATED DUE TO FLOODING.

0656 PM     FLOOD            WEST CHESTER            39.96N  75.61W
04/30/2014                   CHESTER            PA   EMERGENCY MNGR

            NUMEROUS ROADS CLOSED THROUGHOUT COUNTY

0701 PM     FLOOD            LIMERICK TWP            40.22N  75.54W
04/30/2014                   MONTGOMERY         PA   EMERGENCY MNGR

            SEVERAL ROADS CLOSED DUE TO FLOODING IN THE TOWNSHIP.

0702 PM     FLOOD            SOUTH BRUNSWICK         40.39N  74.53W
04/30/2014                   MIDDLESEX          NJ   EMERGENCY MNGR

            ROUTE 1 SOUTH CLOSED AT RAYMOND ROAD.

0703 PM     FLOOD            HORSHAM TWP             40.20N  75.17W
04/30/2014                   MONTGOMERY         PA   EMERGENCY MNGR

            NUMEROUS ROADS CLOSED DUE TO FLOODING ACROSS THE
            COUNTY.

0900 PM     FLOOD            AMBLER                  40.15N  75.22W
04/30/2014                   MONTGOMERY         PA   TRAINED SPOTTER

            FLOODING FROM THE WISSAHICKON CREEK HAS CLOSED SEVERAL
            ROADS IN THE AREA.

0908 PM     FLOOD            MARLBORO                40.32N  74.25W
04/30/2014                   MONMOUTH           NJ   PUBLIC

            ROADS CLOSED DUE TO FLOODING

0926 PM     FLOOD            STANTON                 39.72N  75.64W
04/30/2014                   NEW CASTLE         DE   TRAINED SPOTTER

            ROUTE 7 SOUTH AND ROUTE 2 IN NEWARK CLOSED.

1100 PM     FLOOD            PHOENIXVILLE            40.13N  75.52W
04/30/2014                   CHESTER            PA   TRAINED SPOTTER

            FRENCH CREEK FLOODING COVENTRYVILLE ROAD AND WARWICK
            PARK.

&&

EVENT NUMBER PHI1400151 PHI1400152 PHI1400153 PHI1400154 PHI1400155
PHI1400156 PHI1400158 PHI1400157 PHI1400159 PHI1400160 PHI1400161
PHI1400162 PHI1400165 PHI1400163 PHI1400164 PHI1400166

GORSE

Local storm report, May 1, 12:41 AM EDT, 4 hours 50 minutes before

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1241 AM EDT THU MAY 01 2014

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0147 PM     FLOOD            EAST COVENTRY TWP       40.20N  75.62W
04/30/2014                   CHESTER            PA   TRAINED SPOTTER

            PIGEON CREEK OVERFLOW...HALTEMAN ROAD AND KOLP ROAD
            INTERSECTION IS FLOODED.

0345 PM     FLOOD            MILFORD TWP             40.42N  75.41W
04/30/2014                   BUCKS              PA   EMERGENCY MNGR

            STATE ROAD 663 MILDFORD TWP IS CLOSED DUE TO FLOODING

0345 PM     FLOOD            NEW BRITAIN TWP         40.32N  75.20W
04/30/2014                   BUCKS              PA   EMERGENCY MNGR

            COUNTY LINE ROAD IN NEW BRITAIN TWP IS CLOSED DUE TO
            FLOODING

0609 PM     FLOOD            HOPEWELL TWP            40.35N  74.78W
04/30/2014                   MERCER             NJ   TRAINED SPOTTER

            ROADS FLOODED THROUGHOUT THE TOWNSHIP.

0611 PM     FLOOD            READINGTON TWP          40.57N  74.80W
04/30/2014                   HUNTERDON          NJ   TRAINED SPOTTER

            ROUTE 22 CLOSED DUE TO FLOODING.

0612 PM     FLOOD            STEVENSVILLE            38.98N  76.31W
04/30/2014                   QUEEN ANNE'S       MD   TRAINED SPOTTER

            SEVERAL AREAS OF HIGH STANDING WATER THROUGHOUT KENT
            ISLAND.

0648 PM     FLOOD            AVONDALE                39.82N  75.78W
04/30/2014                   CHESTER            PA   EMERGENCY MNGR

            AN APARTMENT COMPLEX WAS EVACUATED DUE TO FLOODING

0655 PM     FLOOD            MODENA                  39.96N  75.80W
04/30/2014                   CHESTER            PA   EMERGENCY MNGR

            AN APARTMENT COMPLEX WAS EVACUATED DUE TO FLOODING.

0656 PM     FLOOD            WEST CHESTER            39.96N  75.61W
04/30/2014                   CHESTER            PA   EMERGENCY MNGR

            NUMEROUS ROADS CLOSED THROUGHOUT COUNTY

0700 PM     FLOOD            MARLBORO                40.32N  74.25W
04/30/2014                   MONMOUTH           NJ   LAW ENFORCEMENT

            MULTIPLE WATER RESCUES IN THE COUNTY DUE TO MOTORISTS
            ATTEMPTING TO DRIVE THROUGH FLOODED ROADWAYS.

0701 PM     FLOOD            LIMERICK TWP            40.22N  75.54W
04/30/2014                   MONTGOMERY         PA   EMERGENCY MNGR

            SEVERAL ROADS CLOSED DUE TO FLOODING IN THE TOWNSHIP.

0702 PM     FLOOD            SOUTH BRUNSWICK         40.39N  74.53W
04/30/2014                   MIDDLESEX          NJ   EMERGENCY MNGR

            ROUTE 1 SOUTH CLOSED AT RAYMOND ROAD.

0703 PM     FLOOD            HORSHAM TWP             40.20N  75.17W
04/30/2014                   MONTGOMERY         PA   EMERGENCY MNGR

            NUMEROUS ROADS CLOSED DUE TO FLOODING ACROSS THE
            COUNTY.

0720 PM     FLOOD            BUSHKILL TWP            40.79N  75.34W
04/30/2014                   NORTHAMPTON        PA   TRAINED SPOTTER

            WEST DOUGLASVILLE ROAD BETWEEN GOVE AND CLEARFIELD IS
            CLOSED DUE TO FLOODING FROM THE BUSHKILL CREEK. THE
            WATER WAS AT LEAST 6 INCHES DEEP.

0900 PM     FLOOD            AMBLER                  40.15N  75.22W
04/30/2014                   MONTGOMERY         PA   TRAINED SPOTTER

            FLOODING FROM THE WISSAHICKON CREEK HAS CLOSED SEVERAL
            ROADS IN THE AREA.

0908 PM     FLOOD            MARLBORO                40.32N  74.25W
04/30/2014                   MONMOUTH           NJ   PUBLIC

            ROADS CLOSED DUE TO FLOODING

0926 PM     FLOOD            STANTON                 39.72N  75.64W
04/30/2014                   NEW CASTLE         DE   TRAINED SPOTTER

            ROUTE 7 SOUTH AND ROUTE 2 IN NEWARK CLOSED.

1100 PM     FLOOD            PHOENIXVILLE            40.13N  75.52W
04/30/2014                   CHESTER            PA   TRAINED SPOTTER

            FRENCH CREEK FLOODING COVENTRYVILLE ROAD AND WARWICK
            PARK.

1100 PM     FLOOD            RINGOES                 40.43N  74.87W
04/30/2014                   HUNTERDON          NJ   SOCIAL MEDIA

            SEVERAL ROADWAYS IMPASSABLE DUE TO FLOODING.

1200 AM     FLOOD            LOWER MACUNGIE TWP      40.52N  75.58W
05/01/2014                   LEHIGH             PA   TRAINED SPOTTER

            LITTLE LEHIGH FLOODING AND SPRING CREEK ROAD IS CLOSED.

&&

EVENT NUMBER PHI1400151 PHI1400152 PHI1400153 PHI1400154 PHI1400155
PHI1400156 PHI1400158 PHI1400157 PHI1400159 PHI1400167 PHI1400160
PHI1400161 PHI1400162 PHI1400168 PHI1400165 PHI1400163 PHI1400164
PHI1400166 PHI1400169 PHI1400170

GORSE

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 30, 8:16 PM EDT	Areal Flood Warning	PHI	Burlington, Monmouth, Ocean	26 hr
Apr 30, 9:17 PM EDT	River Flood Warning	PHI	Morris, Somerset	56 hr
Apr 30, 9:17 PM EDT	River Flood Warning	PHI	Essex, Morris, Passaic	6 days
Apr 30, 9:17 PM EDT	River Flood Warning	PHI	Essex, Passaic	5 days
Apr 30, 9:25 PM EDT	River Flood Warning	PHI	Morris, Passaic	40 hr
Apr 30, 11:44 PM EDT	River Flood Warning	PHI	Morris	53 hr
Apr 30, 11:50 PM EDT	River Flood Warning	PHI	Morris, Passaic	35 hr
Apr 30, 11:50 PM EDT	River Flood Warning	PHI	Bergen, Morris, Passaic	9 hr
May 1, 1:52 AM EDT	Coastal Flood Warning	PHI	Burlington, Camden, Gloucester, Mercer	4 hr
May 1, 9:30 AM EDT	Marine Dense Fog Advisory	PHI		6 hr
May 1, 10:05 AM EDT	Areal Flood Warning	PHI	Cumberland, Salem	3 days
May 1, 11:50 AM EDT	Areal Flood Warning	PHI	Hunterdon, Mercer, Middlesex, Morris, Somerset, Sussex and 1 more	6 hr
May 1, 1:56 PM EDT	River Flood Warning	PHI	Passaic	26 hr
May 1, 2:58 PM EDT	Coastal Flood Advisory	PHI	Burlington, Camden, Gloucester	110 min
May 1, 5:47 PM EDT	Areal Flood Warning	PHI	Hunterdon, Mercer, Middlesex, Morris, Somerset, Sussex and 1 more	20 hr

Nearby

Areal Flood Advisories in Pennsylvania, 2014 Every 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.