Alert archive / Connecticut / Flash Flood Warnings in 2017
Flash Flood Warning 21, NWS Albany, NY
NWS Albany, NY issued this flash flood warning at Sep 5, 2017, 7:29 PM EDT for Northwest Hills Planning Region, Connecticut. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Sep 5, 2017, 7:29 PM EDT (23:29 UTC)
- Expired
- Sep 5, 2017, 10:30 PM EDT
- In force
- 3 hr
- Issued by
- NWS Albany, NY
- Area
- Storm-based polygon
- Flood severity
- None
The radar
The Brookhaven radar (KOKX), 88 km from the middle of the area, began a volume at 23:30 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
Brookhaven, NY (KOKX), launched 12:00Z, 11.5 hours before the alert went out and 88 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
- 217 J/kg
- Mixed-layer CIN
- -103 J/kg
- Mixed-layer LCL
- 902 m above ground
- 0-6 km bulk shear
- 51 kt
- 0-1 km storm-relative helicity
- 150 m²/s²
- 0-3 km storm-relative helicity
- 129 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 0.8
The text
As transmitted.
099
WGUS51 KALY 052329
FFWALY
CTC005-060230-
/O.NEW.KALY.FF.W.0021.170905T2329Z-170906T0230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Albany NY
729 PM EDT TUE SEP 5 2017
The National Weather Service in Albany has issued a
* Flash Flood Warning for...
Southwestern Litchfield County in northern Connecticut...
* Until 1030 PM EDT
* At 727 PM EDT, Doppler radar indicates another round of
thunderstorms producing heavy rain moving across the warned area.
Up to 2 to 3 inches of rain have already fallen. Flash flooding is
expected to begin shortly.
* Some locations that will experience flooding include...
New Milford, New Preston, Woodbury Center, Gaylordsville, Woodbury,
Bethlehem, Washington, Morris, Roxbury, Bridgewater, Bantam,
Hotchkissville, Candlewood Trails, Pomeraug, Lower Merryall, Marble
Dale, Bulls Bridge, Upper Merryall, Erickson Corner and Dempsey
Landing.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Be especially cautious at night when it is harder to recognize the
dangers of flooding.
Please report flooding to the National Weather Service by email at
ALB.stormreport@noaa.gov...
On Facebook at www.facebook.com/nwsalbany or twitter @nwsalbany.
&&
LAT...LON 4149 7337 4151 7339 4149 7344 4152 7344
4163 7350 4165 7349 4166 7349 4167 7352
4172 7351 4173 7315 4156 7312 4156 7316
4152 7316 4151 7321 4151 7332 4148 7333
4148 7335
$$
IAA1 follow-up statement
407
WGUS71 KALY 060223
FFSALY
Flash Flood Statement
National Weather Service Albany NY
1023 PM EDT TUE SEP 5 2017
CTC005-060232-
/O.EXP.KALY.FF.W.0021.000000T0000Z-170906T0230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Litchfield CT-
1023 PM EDT TUE SEP 5 2017
...THE FLASH FLOOD WARNING FOR SOUTHWESTERN LITCHFIELD COUNTY WILL
EXPIRE AT 1030 PM EDT...
The heavy rain has ended. Potential flash flooding is no longer
expected to pose a threat.
LAT...LON 4149 7337 4151 7339 4149 7344 4152 7344
4163 7350 4165 7349 4166 7349 4167 7352
4172 7351 4173 7315 4156 7312 4156 7316
4152 7316 4151 7321 4151 7332 4148 7333
4148 7335
$$
TAWThe office that day
Everything else NWS Albany, NY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 5, 3:48 PM EDT | Special Weather Statement | ALY | 27 min | |
| Sep 5, 4:13 PM EDT | Special Weather Statement | ALY | 32 min | |
| Sep 5, 4:45 PM EDT | Special Weather Statement | ALY | 60 min | |
| Sep 5, 5:00 PM EDT | Severe Thunderstorm Warning | ALY | Northwest Hills Planning Region | 60 min |
| Sep 5, 6:00 PM EDT | Areal Flood Advisory | ALY | Northwest Hills Planning Region | 3 hr |
| Sep 5, 7:37 PM EDT | Severe Thunderstorm Warning | ALY | Northwest Hills Planning Region | 53 min |
Nearby
Flash Flood Warnings in Connecticut, 2017Every flash flood warning in 2017
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.