Alert archive / New York / Flash Flood Warnings in 2021
Flash Flood Warning 28, NWS Albany, NY
NWS Albany, NY issued this flash flood warning at Aug 23, 2021, 1:28 PM EDT for Greene County, Ulster County, New York. It was in force for 3 hr. 3 reports 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
- Aug 23, 2021, 1:28 PM EDT (17:28 UTC)
- Expired
- Aug 23, 2021, 4:30 PM EDT
- In force
- 3 hr
- Issued by
- NWS Albany, NY
- Area
- Storm-based polygon
- Flood severity
- None
Counties Greene County, NY, Ulster County, NY
The radar
The Albany radar (KENX), 42 km from the middle of the area, began a volume at 17:31 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 |
|---|---|---|---|
| Aug 23, 3:20 PM EDT | FLASH FLOOD | 1 S Cairo, NY | MOUNTAIN AVENUE CLOSED DUE TO FLOODING |
| Aug 23, 3:20 PM EDT | FLASH FLOOD | 3 Ne Palenville, NY | PAUL SAXE ROAD CLOSED AT MOUNTAIN TURNPIKE DUE TO FLOODING |
| Aug 23, 3:20 PM EDT | HEAVY RAIN 7.38 | 2 Sse Tannersville, NY | STORM TOTAL |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Albany, NY (KALY), launched 12:00Z, 5.5 hours before the alert went out and 62 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
- 40 J/kg
- Mixed-layer CIN
- -54 J/kg
- Mixed-layer LCL
- 666 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- 180 m²/s²
- 0-3 km storm-relative helicity
- 154 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
195
WGUS51 KALY 231728
FFWALY
NYC039-111-232030-
/O.NEW.KALY.FF.W.0028.210823T1728Z-210823T2030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Albany NY
128 PM EDT Mon Aug 23 2021
The National Weather Service in Albany has issued a
* Flash Flood Warning for...
Southern Greene County in east central New York...
Northeastern Ulster County in east central New York...
* Until 430 PM EDT.
* At 128 PM EDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 1 and 3 inches of rain
have fallen. Additional rainfall amounts up to 1 inch are possible
in the warned area. Flash flooding is ongoing or expected to begin
shortly.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Radar.
IMPACT...Flash flooding of small creeks and streams, urban
areas, highways, streets and underpasses as well as
other poor drainage and low-lying areas.
* Some locations that will experience flash flooding include...
Hunter, Windham, Lanesville, North-South Lake Campground, Cairo,
Ashland, Jewett, Lexington, Tannersville, East Jewett, Maplecrest,
Elka Park, South Jewett, Beecher Corners, Hensonville, Edgewood,
Brooksburg, Haines Falls, Platte Clove and Spruceton.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
LAT...LON 4218 7444 4222 7445 4226 7444 4233 7438
4234 7432 4234 7420 4231 7402 4220 7390
4210 7397 4211 7430
FLASH FLOOD...RADAR INDICATED
$$
DBT1 follow-up statement
817
WGUS71 KALY 231933
FFSALY
Flash Flood Statement
National Weather Service Albany NY
333 PM EDT Mon Aug 23 2021
NYC039-111-232030-
/O.CON.KALY.FF.W.0028.000000T0000Z-210823T2030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Greene NY-Ulster NY-
333 PM EDT Mon Aug 23 2021
...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 430 PM EDT THIS
AFTERNOON FOR SOUTHERN GREENE AND NORTHEASTERN ULSTER COUNTIES...
At 333 PM EDT, local law enforcement reported road closures due to
flash flooding near Cairo and Palenville. Between 1 and 3 inches of
rain have fallen in the last 6 hours. Additional rainfall amounts up
to 0.5 inches are possible in the warned area. Flash flooding is
already occurring.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Law enforcement reported.
IMPACT...Flash flooding of small creeks and streams, urban areas,
highways, streets and underpasses as well as other poor
drainage and low-lying areas.
Some locations that will experience flash flooding include...
Hunter, Windham, Lanesville, North-South Lake Campground, Cairo,
Ashland, Jewett, Lexington, Tannersville, East Jewett, Maplecrest,
Elka Park, South Jewett, Beecher Corners, Hensonville, Edgewood,
Brooksburg, Haines Falls, Platte Clove and Spruceton.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
LAT...LON 4218 7444 4222 7445 4226 7444 4233 7438
4234 7432 4234 7420 4231 7402 4220 7390
4210 7397 4211 7430
FLASH FLOOD...OBSERVED
$$
DBTThe office that day
Everything else NWS Albany, NY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 23, 3:50 AM EDT | River Flood Warning | ALY | Schoharie | 24 hr |
| Aug 23, 5:33 AM EDT | Areal Flood Advisory | ALY | Dutchess, Ulster | 3 hr |
| Aug 23, 7:15 AM EDT | Areal Flood Advisory | ALY | Dutchess, Ulster | 3 hr |
| Aug 23, 11:11 AM EDT | Areal Flood Advisory | ALY | Greene, Ulster | 3 hr |
| Aug 23, 3:18 PM EDT | Areal Flood Advisory | ALY | Rensselaer | 3 hr |
| Aug 23, 4:42 PM EDT | Areal Flood Advisory | ALY | Rensselaer | 3 hr |
Nearby
Flash Flood Warnings in New York, 2021Every flash flood warning in 2021
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.