Alert archive / New York / Flash Flood Watches in 2009
Flash Flood Watch 4, NWS Albany, NY
NWS Albany, NY issued this flash flood watch at Jul 29, 2009, 3:45 AM EDT for 13 counties in New York; Bennington County, Windham County, Vermont; Berkshire County, Massachusetts. It took effect at Jul 29, 2009, 12:00 PM EDT. It was in force for 18 hr.
The area
The counties it named.
The facts
- Issued
- Jul 29, 2009, 3:45 AM EDT (07:45 UTC)
- In effect from
- Jul 29, 2009, 12:00 PM EDT
- Expired
- Jul 30, 2009, 5:58 AM EDT
- In force
- 18 hr
- Issued by
- NWS Albany, NY
- Flood severity
- None
Counties Berkshire County, MA, Albany County, NY, Columbia County, NY, Dutchess County, NY, Fulton County, NY, Greene County, NY, Montgomery County, NY, Rensselaer County, NY, Saratoga County, NY, Schenectady County, NY, Schoharie County, NY, Ulster County, NY, Warren County, NY, Washington County, NY, Bennington County, VT, Windham County, VT
The radar
The Albany radar (KENX), 26 km from the middle of the area, began a volume at 07:42 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
Albany, NY (KALY), launched 00:00Z, 7.8 hours before the alert went out and 3 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
- 482 J/kg
- Mixed-layer CIN
- -30 J/kg
- Mixed-layer LCL
- 1529 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- 30 m²/s²
- 0-3 km storm-relative helicity
- 56 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.8
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 Albany, NY wrote its last area forecast discussion before this flash flood watch went out at Jul 29, 1:24 AM EDT, 2 hours 21 minutes earlier.
Area forecast discussion, Jul 29, 1:24 AM EDT, 2 hours 21 minutes before
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</html>The office that day
Everything else NWS Albany, NY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 29, 2:02 PM EDT | Severe Thunderstorm Warning | ALY | Albany, Columbia, Greene, Rensselaer | 58 min |
| Jul 29, 2:19 PM EDT | Areal Flood Advisory | ALY | Columbia, Greene, Rensselaer | 3 hr |
| Jul 29, 2:43 PM EDT | Flash Flood Warning | ALY | Columbia, Greene | 6 hr |
| Jul 29, 3:02 PM EDT | Areal Flood Advisory | ALY | Fulton, Hamilton, Saratoga, Warren | 3 hr |
| Jul 29, 3:11 PM EDT | Severe Thunderstorm Warning | ALY | Ulster | 64 min |
| Jul 29, 3:26 PM EDT | Areal Flood Advisory | ALY | Ulster | 3 hr |
| Jul 29, 3:37 PM EDT | Areal Flood Advisory | ALY | Fulton, Saratoga, Warren, Washington | 3 hr |
| Jul 29, 3:54 PM EDT | Flash Flood Warning | ALY | Fulton, Saratoga, Warren | 3 hr |
| Jul 29, 4:04 PM EDT | Flash Flood Warning | ALY | Rensselaer | 6 hr |
| Jul 29, 4:13 PM EDT | Flash Flood Warning | ALY | Washington | 4 hr |
| Jul 29, 4:22 PM EDT | Severe Thunderstorm Warning | ALY | Columbia, Dutchess, Greene, Ulster | 53 min |
| Jul 29, 4:58 PM EDT | Severe Thunderstorm Warning | ALY | Columbia, Greene, Rensselaer | 62 min |
| Jul 29, 5:51 PM EDT | Areal Flood Advisory | ALY | Montgomery | 3 hr |
| Jul 29, 6:09 PM EDT | Flash Flood Warning | ALY | Montgomery, Saratoga, Schenectady | 3 hr |
| Jul 29, 3:55 PM EDT | Areal Flood Advisory | ALY | Berkshire | 4 hr |
| Jul 29, 5:55 PM EDT | Flash Flood Warning | ALY | Berkshire | 4 hr |
Nearby
Flash Flood Watches in New York, 2009Flash Flood Watches in Vermont, 2009Flash Flood Watches in Massachusetts, 2009Every flash flood watch in 2009
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.