Alert archive / New Jersey / Coastal Flood Watches in 2008

Coastal Flood Watch 2, NWS Philadelphia/Mount Holly

September 24, 20087 counties in New Jersey; Delaware County, Philadelphia County, Pennsylvania

NWS Philadelphia/Mount Holly issued this coastal flood watch at Sep 24, 2008, 5:15 AM EDT for 7 counties in New Jersey; Delaware County, Philadelphia County, Pennsylvania. It took effect at Sep 25, 2008, 3:00 PM EDT. It was in force for .

The area

The counties it named.

The facts

Issued: Sep 24, 2008, 5:15 AM EDT (09:15 UTC)
In effect from: Sep 25, 2008, 3:00 PM EDT
Expired: Sep 25, 2008, 4:44 AM EDT
In force
Issued by: NWS Philadelphia/Mount Holly

Counties Atlantic County, NJ, Burlington County, NJ, Camden County, NJ, Cape May County, NJ, Cumberland County, NJ, Gloucester County, NJ, Salem County, NJ, Delaware County, PA, Philadelphia County, PA

The radar

The Philadelphia radar (KDIX), 63 km from the middle of the area, began a volume at 09:15 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

Wallops Is Stn, VA (KWAL), launched 00:00Z, 9.3 hours before the alert went out and 193 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: 1 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 987 m above ground
0-6 km bulk shear: 10 kt
0-1 km storm-relative helicity: 11 m²/s²
0-3 km storm-relative helicity: 55 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 coastal flood watch 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 coastal flood watch went out at Sep 24, 4:47 AM EDT, 28 minutes earlier.

Area forecast discussion, Sep 24, 4:47 AM EDT, 28 minutes before

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Hazardous weather outlook, Sep 24, 4:00 AM EDT, 1 hour 15 minutes before

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      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
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        The site you requested is temporarily down for maintenance or an unexpected outage.
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The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 24, 5:31 AM EDT	Coastal Flood Statement	PHI	Atlantic, Cape May, Monmouth, Ocean	11 hr
Sep 24, 5:39 AM EDT	Gale Watch	PHI		11 hr
Sep 24, 2:52 PM EDT	Wind Advisory	PHI	Atlantic, Burlington, Cape May, Cumberland, Middlesex, Monmouth and 1 more	35 hr
Sep 24, 4:31 PM EDT	High Surf Advisory	PHI	Atlantic, Cape May, Monmouth, Ocean	49 hr

Nearby

Coastal Flood Watches in New Jersey, 2008 Coastal Flood Watches in Pennsylvania, 2008 Every coastal flood watch in 2008

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.