Alert archive / New York / Flash Flood Warnings in 2021

Flash Flood Warning 12, NWS Albany, NY

July 14, 2021Columbia County, New York; Berkshire County, Massachusetts

NWS Albany, NY issued this flash flood warning at Jul 14, 2021, 7:06 PM EDT for Columbia County, New York; Berkshire County, Massachusetts. It was in force for 3 hr. 4 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
Jul 14, 2021, 7:06 PM EDT (23:06 UTC)
Expired
Jul 14, 2021, 10:15 PM EDT
In force
3 hr
Issued by
NWS Albany, NY
Area
Storm-based polygon
Flood severity
None

Counties Berkshire County, MA, Columbia County, NY

The radar

The Albany radar (KENX), 56 km from the middle of the area, began a volume at 23:09 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
Jul 14, 7:10 PM EDTFLASH FLOOD1 Wnw Canaan, NYSTATE ROUTE 295 FLOODED AT COLANE RD INTERSECTION.
Jul 14, 7:17 PM EDTFLASH FLOOD4 Ene Chatham, NYNEW CONCORD ROAD FLOODED BETWEEN STATE ROUTE 295 AND COUNTY ROUTE 9.
Jul 14, 7:47 PM EDTFLASH FLOOD4 Nw Austerlitz, NYCOUNTY ROUTE 24 FLOODED BETEEN COUNTY ROUTE 9 AND STONEWALL ROAD.
Jul 14, 8:05 PM EDTFLASH FLOOD1 Ssw Chatham, NYSTATE ROUTE 66 FLOODED AT INTERSECTION OF DARDESS DR.

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, 11.1 hours before the alert went out and 46 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 2021-07-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 20 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 2021-07-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 129 square meters per square second.193958Sfc1 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
20 J/kg
Mixed-layer CIN
-211 J/kg
Mixed-layer LCL
871 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
129 m²/s²
0-3 km storm-relative helicity
134 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

As transmitted.

455 
WGUS51 KALY 142306
FFWALY
MAC003-NYC021-150215-
/O.NEW.KALY.FF.W.0012.210714T2306Z-210715T0215Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Albany NY
706 PM EDT Wed Jul 14 2021

The National Weather Service in Albany has issued a

* Flash Flood Warning for...
  Central Berkshire County in western Massachusetts...
  Northeastern Columbia County in east central New York...

* Until 1015 PM EDT.

* At 706 PM EDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Between 1.5 and 2.5 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...
  Pittsfield, Chatham, New Lebanon, Ghent, Canaan, Richmond, 
  Queechy, Flatbrook, Canaan Center, New Lebanon Center, Lebanon 
  Springs, Shaker Village, Carey Corner, Stevens Corner, New 
  Britain, West Pittsfield, Barkerville, Stearnsville, East Chatham 
  and Red Rock.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4236 7341 4231 7363 4238 7364 4243 7353
      4249 7345 4249 7332 4248 7319 4241 7318

FLASH FLOOD...RADAR INDICATED

$$

JPV
1 follow-up statement
373 
WGUS71 KALY 150214
FFSALY

Flash Flood Statement
National Weather Service Albany NY
1014 PM EDT Wed Jul 14 2021

MAC003-NYC021-150224-
/O.EXP.KALY.FF.W.0012.000000T0000Z-210715T0215Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Berkshire MA-Columbia NY-
1014 PM EDT Wed Jul 14 2021

...FLASH FLOOD WARNING WILL EXPIRE AT 1015 PM EDT THIS EVENING FOR 
CENTRAL BERKSHIRE AND NORTHEASTERN COLUMBIA COUNTIES...

Flood waters have receded. Flooding is no longer expected to pose a 
threat. Please continue to heed remaining road closures.

LAT...LON 4236 7341 4231 7363 4238 7364 4243 7353
      4249 7345 4249 7332 4248 7319 4241 7318

$$

JPV

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 13, 10:59 PM EDTSpecial Weather StatementALYHamilton, Herkimer46 min
Jul 13, 11:21 PM EDTSpecial Weather StatementALYOtsego39 min
Jul 13, 11:47 PM EDTSpecial Weather StatementALYFulton, Hamilton, Herkimer, Montgomery43 min
Jul 14, 12:42 AM EDTSpecial Weather StatementALYUlster48 min
Jul 14, 1:08 PM EDTSpecial Weather StatementALYSaratoga37 min
Jul 14, 1:53 PM EDTSpecial Weather StatementALYWashington52 min
Jul 14, 2:32 PM EDTSpecial Weather StatementALYRensselaer43 min
Jul 14, 2:47 PM EDTSpecial Weather StatementALYRensselaer43 min
Jul 14, 2:58 PM EDTSevere Thunderstorm WarningALYRensselaer, Saratoga, Washington62 min
Jul 14, 3:09 PM EDTSevere Thunderstorm WarningALYAlbany, Rensselaer66 min
Jul 14, 3:18 PM EDTSevere Thunderstorm WarningALYWashington57 min
Jul 14, 3:22 PM EDTAreal Flood AdvisoryALYAlbany, Rensselaer3 hr
Jul 14, 3:44 PM EDTFlash Flood WarningALYRensselaer2 hr
Jul 14, 3:53 PM EDTSevere Thunderstorm WarningALYRensselaer52 min
Jul 14, 4:14 PM EDTFlash Flood WarningALYRensselaer3 hr
Jul 14, 4:15 PM EDTSevere Thunderstorm WarningALYRensselaer28 min
Jul 14, 4:49 PM EDTFlash Flood WarningALYRensselaer3 hr
Jul 14, 4:51 PM EDTSpecial Weather StatementALYRensselaer24 min
Jul 14, 5:39 PM EDTAreal Flood AdvisoryALYColumbia3 hr
Jul 14, 5:54 PM EDTAreal Flood AdvisoryALYRensselaer3 hr
Jul 14, 6:12 PM EDTAreal Flood WarningALYRensselaer3 hr
Jul 14, 6:47 PM EDTAreal Flood WarningALYRensselaer3 hr
Jul 14, 6:49 PM EDTSpecial Weather StatementALYColumbia41 min
Jul 14, 6:56 PM EDTSpecial Weather StatementALYGreene64 min
Jul 14, 7:14 PM EDTAreal Flood AdvisoryALYColumbia2 hr
Jul 14, 7:57 PM EDTAreal Flood WarningALYRensselaer3 hr
Jul 14, 5:10 PM EDTSpecial Weather StatementALYBerkshire35 min
Jul 14, 7:30 PM EDTSpecial Weather StatementALYBerkshire30 min
Jul 14, 7:36 PM EDTAreal Flood AdvisoryALYBerkshire114 min

Nearby

Flash Flood Warnings in New York, 2021Flash Flood Warnings in Massachusetts, 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.