Alert archive / New Jersey / Areal Flood Advisories in 2013

Areal Flood Advisory 106, NWS Philadelphia/Mount Holly

July 12, 2013Cape May County, New Jersey

NWS Philadelphia/Mount Holly issued this areal flood advisory at Jul 12, 2013, 2:29 PM EDT for Cape May County, New Jersey. It was in force for 6 hr.

The area

The counties it named.

The facts

Issued: Jul 12, 2013, 2:29 PM EDT (18:29 UTC)
Expired: Jul 12, 2013, 8:30 PM EDT
In force: 6 hr
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon

County Cape May County, NJ

The radar

The Dover AFB radar (KDOX), 59 km from the middle of the area, began a volume at 18:30 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

Washington/Dulle, VA (KIAD), launched 12:00Z, 6.5 hours before the alert went out and 221 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: 892 m above ground
0-6 km bulk shear: 11 kt
0-1 km storm-relative helicity: -59 m²/s²
0-3 km storm-relative helicity: 194 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 Jul 12, 12:38 PM EDT, 1 hour 51 minutes earlier.

Area forecast discussion, Jul 12, 12:38 PM EDT, 1 hour 51 minutes before

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Hazardous weather outlook, Jul 12, 11:04 AM EDT, 3 hours 25 minutes before

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In the hours before

Local storm report, Jul 12, 1:43 PM EDT, 46 minutes before

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
143 PM EDT FRI JUL 12 2013

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

0545 AM     FLASH FLOOD      STEVENSVILLE            38.98N  76.31W
07/12/2013                   QUEEN ANNE'S       MD   911 CALL CENTER

            FLOODING ALONG ROUTE 8 JUST SOUTH OF STEVENSVILLE...
            FROM BATTS NECK ROAD SOUTHWARD... WITH ABOUT 4 INCHES OF
            WATER COVERING THE ROAD.

1000 AM     FLASH FLOOD      UPPER PROVIDENCE        39.96N  75.42W
07/12/2013                   DELAWARE           PA   911 CALL CENTER

            WATER RESCUE DUE TO RAPIDLY RISING WATERS. TIME
            ESTIMATED BASED ON RADAR.

1130 AM     FLASH FLOOD      4 E EASTON              38.77N  76.00W
07/12/2013                   TALBOT             MD   911 CALL CENTER

            KINGSTON LANDING ROAD WASHED OUT IN SPOTS AND IS
            CLOSED.

1130 AM     FLOOD            EASTON                  38.77N  76.08W
07/12/2013                   TALBOT             MD   911 CALL CENTER

            4 ROADS CLOSED DUE TO FLOODING INCLUDING HIGHWAYS 309
            AND 328.

&&

EVENT NUMBER PHI1300262 PHI1300263 PHI1300264 PHI1300265

GAINES

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 12, 3:45 AM EDT	Small Craft Advisory	PHI		25 hr
Jul 12, 4:08 AM EDT	Flash Flood Watch	PHI	Atlantic, Camden, Cape May, Cumberland, Gloucester, Salem	17 hr
Jul 12, 4:00 PM EDT	Areal Flood Advisory	PHI	Atlantic, Cape May, Cumberland, Salem	7 hr
Jul 12, 4:04 PM EDT	Areal Flood Advisory	PHI	Burlington, Camden, Gloucester, Hunterdon, Mercer, Middlesex and 2 more	4 hr
Jul 12, 4:23 PM EDT	Areal Flood Advisory	PHI	Middlesex, Monmouth, Somerset	4 hr
Jul 12, 4:47 PM EDT	Areal Flood Advisory	PHI	Hunterdon, Morris, Somerset, Sussex, Warren	4 hr
Jul 12, 5:54 PM EDT	Special Weather Statement	PHI	Atlantic, Camden	66 min
Jul 12, 6:54 PM EDT	Special Weather Statement	PHI	Atlantic, Camden	66 min
Jul 12, 7:57 PM EDT	Special Weather Statement	PHI	Burlington, Camden, Gloucester, Ocean	63 min
Jul 12, 9:13 AM EDT	Areal Flood Advisory	PHI	Chester, Delaware, Montgomery	4 hr
Jul 12, 10:01 AM EDT	Flash Flood Warning	PHI	Delaware	4 hr
Jul 12, 10:49 AM EDT	Areal Flood Advisory	PHI	Chester	4 hr
Jul 12, 7:21 AM EDT	Areal Flood Advisory	PHI	Sussex	10 hr
Jul 12, 9:20 AM EDT	Areal Flood Advisory	PHI	Kent, Sussex	8 hr
Jul 12, 12:15 PM EDT	Areal Flood Advisory	PHI	Kent, New Castle	14 hr
Jul 12, 1:18 PM EDT	Flash Flood Warning	PHI	Kent	4 hr
Jul 12, 1:24 PM EDT	Flash Flood Warning	PHI	Sussex	4 hr
Jul 12, 1:33 PM EDT	Flash Flood Warning	PHI	Sussex	4 hr
Jul 12, 5:18 PM EDT	Areal Flood Advisory	PHI	Sussex	4 hr

Nearby

Areal Flood Advisories in New Jersey, 2013 Every areal flood advisory in 2013

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.