Alert archive / New York / Flash Flood Warnings in 2021
Flash Flood Warning 29, NWS Albany, NY
NWS Albany, NY issued this flash flood warning at Aug 27, 2021, 7:58 PM EDT for Ulster County, New York. It was in force for 111 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Aug 27, 2021, 7:58 PM EDT (23:58 UTC)
- Expired
- Aug 27, 2021, 9:49 PM EDT
- In force
- 111 min
- Issued by
- NWS Albany, NY
- Area
- Storm-based polygon
- Flood severity
- None
County Ulster County, NY
The radar
The Albany radar (KENX), 95 km from the middle of the area, began a volume at 00:01 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 12:00Z, 12.0 hours before the alert went out and 114 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
- 325 J/kg
- Mixed-layer CIN
- -107 J/kg
- Mixed-layer LCL
- 983 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- -39 m²/s²
- 0-3 km storm-relative helicity
- 11 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.7
The text
As transmitted.
283
WGUS51 KALY 272358
FFWALY
NYC111-280200-
/O.NEW.KALY.FF.W.0029.210827T2358Z-210828T0200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Albany NY
758 PM EDT Fri Aug 27 2021
The National Weather Service in Albany has issued a
* Flash Flood Warning for...
Central Ulster County in east central New York...
* Until 1000 PM EDT.
* At 758 PM EDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 1 and 2 inches of rain
have fallen. The expected rainfall rate is 1 to 2 inches in 1
hour. Additional rainfall amounts of 1 to 2 inches 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...
Napanoch, Ulster Heights, Lackawack, Sholam, Honk Hill and
Dairyland.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Move to higher ground now. Act quickly to protect your life.
&&
LAT...LON 4183 7440 4173 7437 4174 7454 4175 7457
4176 7456 4178 7454 4180 7452 4181 7452
4183 7449 4184 7448
FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL...1-2 INCHES IN 1 HOUR
$$
Evbuoma1 follow-up statement
026
WGUS71 KALY 280149
FFSALY
Flash Flood Statement
National Weather Service Albany NY
949 PM EDT Fri Aug 27 2021
NYC111-280159-
/O.CAN.KALY.FF.W.0029.000000T0000Z-210828T0200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Ulster NY-
949 PM EDT Fri Aug 27 2021
...FLASH FLOOD WARNING IS CANCELLED FOR CENTRAL ULSTER COUNTY...
The heavy rain has ended. Flooding is no longer expected to pose a
threat. Please continue to heed remaining road closures.
LAT...LON 4183 7440 4173 7437 4174 7454 4175 7457
4176 7456 4178 7454 4180 7452 4181 7452
4183 7449 4184 7448
$$
ATEThe office that day
Everything else NWS Albany, NY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 27, 3:40 PM EDT | Special Weather Statement | ALY | Schoharie | 50 min |
| Aug 27, 3:46 PM EDT | Special Weather Statement | ALY | Schoharie | 29 min |
| Aug 27, 4:14 PM EDT | Areal Flood Advisory | ALY | Schoharie | 81 min |
| Aug 27, 5:04 PM EDT | Special Weather Statement | ALY | Greene | 26 min |
| Aug 27, 5:29 PM EDT | Special Weather Statement | ALY | Ulster | 31 min |
| Aug 27, 6:23 PM EDT | Special Weather Statement | ALY | Ulster | 52 min |
| Aug 27, 7:02 PM EDT | Areal Flood Advisory | ALY | Ulster | 118 min |
| Aug 27, 7:10 PM EDT | Special Weather Statement | ALY | Ulster | 50 min |
| Aug 27, 7:26 PM EDT | Areal Flood Advisory | ALY | Ulster | 2 hr |
| Aug 27, 7:29 PM EDT | Areal Flood Advisory | ALY | Ulster | 2 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.