Alert archive / New York / Flash Flood Warnings in 2011
Flash Flood Warning 9, NWS Albany, NY
NWS Albany, NY issued this flash flood warning at May 20, 2011, 5:23 PM EDT for Northwest Hills Planning Region, Connecticut; Dutchess County, Ulster County, New York. It was in force for 3 hr. 1 report came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- May 20, 2011, 5:23 PM EDT (21:23 UTC)
- Expired
- May 20, 2011, 8:28 PM EDT
- In force
- 3 hr
- Issued by
- NWS Albany, NY
- Area
- Storm-based polygon
- Flood severity
- None
Counties Northwest Hills Planning Region, CT, Dutchess County, NY, Ulster County, NY
The radar
The Brookhaven radar (KOKX), 101 km from the middle of the area, began a volume at 21:26 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| May 20, 5:35 PM EDT | FLASH FLOOD | 5 Nw Waterbury, CT | FLOODING ON RT. 63 BETWEEN ECHO LAKE RD AND WOODRUFF AVE...PORTIONS OF WOODRUFF AVE AND SCOTT AVE...AS WELL AS INTERSECTION OF RTS. 6 AND 63. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Brookhaven, NY (KOKX), launched 12:00Z, 9.4 hours before the alert went out and 101 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
- 49 J/kg
- Mixed-layer CIN
- -125 J/kg
- Mixed-layer LCL
- 735 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- 4 m²/s²
- 0-3 km storm-relative helicity
- 2 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
053
WGUS51 KALY 202123
FFWALY
CTC005-NYC027-111-210315-
/O.NEW.KALY.FF.W.0009.110520T2123Z-110521T0315Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE ALBANY NY
523 PM EDT FRI MAY 20 2011
THE NATIONAL WEATHER SERVICE IN ALBANY HAS ISSUED A
* FLASH FLOOD WARNING FOR...
SOUTHERN DUTCHESS COUNTY IN EAST CENTRAL NEW YORK...
THIS INCLUDES THE CITIES OF...POUGHKEEPSIE...PAWLING...BEACON...
SOUTHEASTERN ULSTER COUNTY IN EAST CENTRAL NEW YORK...
LITCHFIELD COUNTY IN NORTHERN CONNECTICUT...
THIS INCLUDES THE CITIES OF...TORRINGTON...NEW MILFORD...
* UNTIL 1115 PM EDT
* AT 516 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
THUNDERSTORMS PRODUCING VERY HEAVY RAIN WHICH IS EXPECTED TO
PRODUCE FLASH FLOODING OVER THE WARNED AREA.
* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO WINSTED...
THOMASTON...TERRYVILLE...NORFOLK...NEW PRESTON...NEW HARTFORD...
LITCHFIELD...GAYLORDSVILLE...FALLS VILLAGE...CORNWALL BRIDGE...
CANAAN...TORRINGTON...WINGDALE...RED OAKS MILL AND HIGHLAND
PRECAUTIONARY/PREPAREDNESS ACTIONS...
ADDITIONAL RAINFALL AMOUNTS OF 1 TO 4 INCHES ARE POSSIBLE IN THE
WARNED AREA.
MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE YOUR VEHICLE INTO
AREAS WHERE THE WATER COVERS THE ROADWAY. FLOOD WATERS ARE USUALLY
DEEPER THAN THEY APPEAR. JUST ONE FOOT OF FLOWING WATER IS POWERFUL
ENOUGH TO SWEEP VEHICLES OFF THE ROAD. WHEN ENCOUNTERING FLOODED
ROADS MAKE THE SMART CHOICE...TURN AROUND...DONT DROWN.
PLEASE REPORT FLOODING TO THE NATIONAL WEATHER SERVICE BY EMAIL AT
ALB.STORMREPORT@NOAA.GOV.
&&
LAT...LON 4146 7400 4158 7396 4158 7405 4173 7404
4172 7341 4205 7335 4204 7300 4197 7302
4197 7288 4182 7294 4179 7301 4164 7298
4155 7315 4151 7316 4147 7332 4147 7331
4151 7339 4149 7345 4166 7351 4152 7353
$$1 follow-up statement
477
WGUS71 KALY 210028
FFSALY
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE ALBANY NY
828 PM EDT FRI MAY 20 2011
CTC005-NYC027-111-210036-
/O.CAN.KALY.FF.W.0009.000000T0000Z-110521T0315Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
LITCHFIELD CT-ULSTER NY-DUTCHESS NY-
828 PM EDT FRI MAY 20 2011
...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR SOUTHERN
DUTCHESS...SOUTHEASTERN ULSTER AND LITCHFIELD COUNTIES...
THE THUNDERSTORMS WHICH PRODUCED VERY HEAVY RAIN ACROSS PARTS OF THE
WARNED AREA HAVE MOVED OUT OF THE REGION. THEREFORE THE FLASH FLOOD
WARNING HAS BEEN CANCELLED.
PLEASE REPORT FLOODING TO THE NATIONAL WEATHER SERVICE BY EMAIL AT
ALB.STORMREPORT@NOAA.GOV.
LAT...LON 4146 7400 4158 7396 4158 7405 4173 7404
4172 7341 4205 7335 4204 7300 4197 7302
4197 7288 4182 7294 4179 7301 4164 7298
4155 7315 4151 7316 4147 7332 4147 7331
4151 7339 4149 7345 4166 7351 4152 7353
$$The office that day
Everything else NWS Albany, NY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 20, 2:18 PM EDT | Flash Flood Warning | ALY | Northwest Hills Planning Region | 6 hr |
| May 19, 8:47 PM EDT | Flash Flood Warning | ALY | Columbia, Greene | 6 hr |
| May 19, 9:52 PM EDT | River Flood Warning | ALY | Oneida | 11 hr |
| May 20, 1:16 PM EDT | Areal Flood Advisory | ALY | Columbia, Dutchess | 60 min |
| May 20, 2:35 PM EDT | Flash Flood Warning | ALY | Rensselaer, Saratoga, Warren, Washington | 2 hr |
| May 20, 2:47 PM EDT | Severe Thunderstorm Warning | ALY | Columbia, Greene | 43 min |
| May 20, 3:16 PM EDT | Severe Thunderstorm Warning | ALY | Saratoga, Warren, Washington | 44 min |
| May 20, 3:46 PM EDT | Flash Flood Warning | ALY | Albany, Columbia, Greene, Rensselaer, Saratoga, Schenectady | 5 hr |
| May 20, 4:03 PM EDT | Flash Flood Warning | ALY | Fulton, Hamilton, Herkimer, Montgomery | 6 hr |
| May 20, 5:02 PM EDT | Special Weather Statement | ALY | Putnam | 28 min |
| May 20, 5:39 PM EDT | Special Weather Statement | ALY | Washington | 66 min |
| May 20, 6:59 PM EDT | Flash Flood Warning | ALY | Rensselaer, Saratoga, Schenectady, Washington | 3 hr |
Nearby
Flash Flood Warnings in New York, 2011Flash Flood Warnings in Connecticut, 2011Every flash flood warning in 2011
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.