Alert archive / New York / Flash Flood Watches in 2007
Flash Flood Watch 3, NWS New York, NY
NWS New York, NY issued this flash flood watch at Aug 9, 2007, 4:12 PM EDT for 4 counties in New York; Hudson County, Passaic County, New Jersey. It took effect at Aug 10, 2007, 12:00 AM EDT. It was in force for 12 hr.
The area
The counties it named.
The facts
- Issued
- Aug 9, 2007, 4:12 PM EDT (20:12 UTC)
- In effect from
- Aug 10, 2007, 12:00 AM EDT
- Expired
- Aug 10, 2007, 11:45 AM EDT
- In force
- 12 hr
- Issued by
- NWS New York, NY
- Flood severity
- None
Counties Hudson County, NJ, Passaic County, NJ, Bronx County, NY, Kings County, NY, New York County, NY, Richmond County, NY
The radar
The Philadelphia radar (KDIX), 96 km from the middle of the area, began a volume at 20:16 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
Phillips Aaf/Abe, MD (KAPG), launched 12:00Z, 8.2 hours before the alert went out and 225 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
- 30 J/kg
- Mixed-layer CIN
- -330 J/kg
- Mixed-layer LCL
- 1529 m above ground
- 0-6 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- -22 m²/s²
- 0-3 km storm-relative helicity
- 73 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
What forecasters said that day
The local office's own words before this flash flood watch went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS New York, NY wrote its last area forecast discussion before this flash flood watch went out at Aug 9, 3:12 PM EDT, 1 hour earlier.
Area forecast discussion, Aug 9, 3:12 PM EDT, 1 hour before
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</html>Hazardous weather outlook, Aug 9, 5:45 AM EDT, 10 hours 27 minutes before
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Flash Flood Watches in New York, 2007Flash Flood Watches in New Jersey, 2007Every flash flood watch in 2007
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.