Alert archive / New York / Flash Flood Warnings in 2021

Flash Flood Warning 33, NWS Albany, NY

September 15, 2021Fulton County, Montgomery County, New York

NWS Albany, NY issued this flash flood warning at Sep 15, 2021, 1:21 PM EDT for Fulton County, Montgomery 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
Sep 15, 2021, 1:21 PM EDT (17:21 UTC)
Expired
Sep 15, 2021, 4:30 PM EDT
In force
3 hr
Issued by
NWS Albany, NY
Area
Storm-based polygon
Flood severity
None

Counties Fulton County, NY, Montgomery County, NY

The radar

The Albany radar (KENX), 54 km from the middle of the area, began a volume at 17:22 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

TimeReportWhereRemark
Sep 15, 4:30 PM EDTFLASH FLOODSprakers, NYROAD CLOSURE DUE TO FLOODING NEAR ROUTE 5S AND SPRAKERS HILL RD.

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, 5.4 hours before the alert went out and 66 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.

Skew-T log-pSkew-T log-p diagram, Albany, NY at 12:00Z on 2021-09-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 856 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Albany, NY at 12:00Z on 2021-09-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 214 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
856 J/kg
Mixed-layer CIN
-92 J/kg
Mixed-layer LCL
766 m above ground
0-6 km bulk shear
51 kt
0-1 km storm-relative helicity
214 m²/s²
0-3 km storm-relative helicity
248 m²/s²
Significant tornado parameter
0.7
Supercell composite
6.3

Open this sounding in Storm Lab

The text

As transmitted.

755 
WGUS51 KALY 151721
FFWALY
NYC035-057-152030-
/O.NEW.KALY.FF.W.0033.210915T1721Z-210915T2030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Albany NY
121 PM EDT Wed Sep 15 2021

The National Weather Service in Albany has issued a

* Flash Flood Warning for...
  South Central Fulton County in eastern New York...
  Central Montgomery County in eastern New York...

* Until 430 PM EDT.

* At 121 PM EDT, Trained weather spotters reported thunderstorms 
  producing heavy rain across the warned area with culverts reaching 
  the brim. Between 0.5 and 1 inch of rain has fallen. The expected 
  rainfall rate is 1 to 2 inches in 1 hour. Additional rainfall 
  amounts of 1 to 3 inches are possible in the warned area. Flash 
  flooding is ongoing or expected to begin shortly.

  HAZARD...Flash flooding caused by thunderstorms.

  SOURCE...Trained spotters 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...
  Johnstown, Canajoharie, Fonda, Fort Plain, Fort Johnson, Ames, 
  Tribes Hill, Glen, Charleston, Fultonville, Palatine Bridge, 
  Nelliston, Yosts, Randall, McKinley, Sprakers, Currytown, East 
  Stone Arabia, Flat Creek and Rural Grove.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

Be aware of your surroundings and do not drive on flooded roads.

Please report flooding to the National Weather Service by email 
atALB.stormreport@noaa.gov... On Facebook at 
www.facebook.com/nwsalbany or twitter @nwsalbany.

&&

LAT...LON 4300 7446 4302 7422 4284 7430 4281 7455
      4281 7456 4282 7458 4283 7465 4285 7471
      4285 7473 4286 7476 4291 7475 4292 7475
      4293 7475

FLASH FLOOD...OBSERVED
EXPECTED RAINFALL...1-2 INCHES IN 1 HOUR

$$

ATE

The office that day

Everything else NWS Albany, NY issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Sep 15, 7:02 AM EDTSpecial Weather StatementALYHamilton, Herkimer58 min
Sep 15, 12:19 PM EDTSpecial Weather StatementALYSaratoga26 min
Sep 15, 12:31 PM EDTSevere Thunderstorm WarningALYMontgomery, Schenectady, Schoharie59 min
Sep 15, 12:47 PM EDTSpecial Weather StatementALYSaratoga, Washington28 min
Sep 15, 12:54 PM EDTSevere Thunderstorm WarningALYFulton, Montgomery, Saratoga, Schenectady51 min
Sep 15, 1:05 PM EDTSpecial Weather StatementALYWashington25 min
Sep 15, 1:18 PM EDTSevere Thunderstorm WarningALYSaratoga, Washington57 min
Sep 15, 1:28 PM EDTAreal Flood AdvisoryALYFulton, Montgomery, Saratoga, Schenectady9 min
Sep 15, 1:32 PM EDTAreal Flood AdvisoryALYSaratoga, Washington16 min
Sep 15, 1:37 PM EDTFlash Flood WarningALYFulton, Montgomery, Saratoga, Schenectady3 hr
Sep 15, 1:45 PM EDTAreal Flood AdvisoryALYWashington2 hr
Sep 15, 1:46 PM EDTSevere Thunderstorm WarningALYSaratoga, Washington44 min
Sep 15, 1:48 PM EDTFlash Flood WarningALYSaratoga, Washington3 hr
Sep 15, 1:52 PM EDTAreal Flood AdvisoryALYWashington3 hr
Sep 15, 1:55 PM EDTAreal Flood AdvisoryALYMontgomery, Schenectady, Schoharie3 hr
Sep 15, 2:13 PM EDTSpecial Weather StatementALYSchenectady32 min
Sep 15, 2:15 PM EDTSevere Thunderstorm WarningALYWashington60 min
Sep 15, 2:22 PM EDTAreal Flood AdvisoryALYRensselaer, Saratoga, Schenectady, Washington26 min
Sep 15, 2:26 PM EDTSpecial Weather StatementALYSchoharie34 min
Sep 15, 2:28 PM EDTSevere Thunderstorm WarningALYRensselaer, Saratoga, Washington62 min
Sep 15, 2:35 PM EDTSpecial Weather StatementALYRensselaer25 min
Sep 15, 2:48 PM EDTFlash Flood WarningALYRensselaer, Saratoga, Schenectady, Washington3 hr
Sep 15, 2:56 PM EDTSpecial Weather StatementALYRensselaer49 min
Sep 15, 2:59 PM EDTAreal Flood AdvisoryALYAlbany, Rensselaer3 hr
Sep 15, 2:59 PM EDTSpecial Weather StatementALYAlbany31 min
Sep 15, 3:00 PM EDTSevere Thunderstorm WarningALYRensselaer60 min
Sep 15, 3:03 PM EDTAreal Flood AdvisoryALYWashington3 hr
Sep 15, 3:19 PM EDTSpecial Weather StatementALYUlster26 min
Sep 15, 3:29 PM EDTSpecial Weather StatementALYRensselaer31 min
Sep 15, 3:33 PM EDTSpecial Weather StatementALYGreene27 min
Sep 15, 3:39 PM EDTSevere Thunderstorm WarningALYAlbany, Columbia, Greene, Rensselaer66 min
Sep 15, 3:48 PM EDTAreal Flood AdvisoryALYAlbany, Columbia, Greene, Rensselaer3 hr
Sep 15, 3:50 PM EDTSpecial Weather StatementALYUlster25 min
Sep 15, 4:02 PM EDTAreal Flood AdvisoryALYColumbia, Rensselaer3 hr
Sep 15, 4:19 PM EDTSpecial Weather StatementALYColumbia26 min
Sep 15, 4:31 PM EDTSevere Thunderstorm WarningALYColumbia, Greene, Rensselaer59 min
Sep 15, 4:41 PM EDTAreal Flood AdvisoryALYColumbia, Greene, Rensselaer3 hr
Sep 15, 4:51 PM EDTAreal Flood AdvisoryALYGreene, Ulster3 hr
Sep 15, 5:00 PM EDTSpecial Weather StatementALYGreene30 min
Sep 15, 5:13 PM EDTSpecial Weather StatementALYUlster32 min
Sep 15, 5:16 PM EDTAreal Flood WarningALYFulton, Hamilton, Montgomery, Saratoga, Schenectady, Schoharie and 2 more3 hr
Sep 15, 5:26 PM EDTFlash Flood WarningALYUlster2 hr
Sep 15, 5:30 PM EDTAreal Flood AdvisoryALYUlster3 hr
Sep 15, 5:31 PM EDTSpecial Weather StatementALYColumbia29 min
Sep 15, 5:41 PM EDTSpecial Weather StatementALYUlster34 min
Sep 15, 5:48 PM EDTFlash Flood WarningALYColumbia, Greene97 min
Sep 15, 5:55 PM EDTSpecial Weather StatementALYGreene35 min
Sep 15, 6:08 PM EDTSpecial Weather StatementALYColumbia37 min
Sep 15, 6:32 PM EDTSpecial Weather StatementALYDutchess43 min
Sep 15, 7:39 PM EDTSpecial Weather StatementALYUlster36 min

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.