Alert archive / New York / Flash Flood Warnings in 2021

Flash Flood Warning 5, NWS Albany, NY

June 30, 2021Columbia County, New York; Berkshire County, Massachusetts

NWS Albany, NY issued this flash flood warning at Jun 30, 2021, 5:58 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
Jun 30, 2021, 5:58 PM EDT (21:58 UTC)
Expired
Jun 30, 2021, 8:45 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), 83 km from the middle of the area, began a volume at 22:00 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
Jun 30, 7:00 PM EDTFLASH FLOOD3 Nnw Becket, MAESTIMATED 6 TO 8 INCHES OF WATER COVERING ROUTE 8 NEAR WASHINGTON TOWN PARK. TIME ESTIMATED BY RADAR.
Jun 30, 7:15 PM EDTFLASH FLOOD1 Nnw Lenoxdale, MAFLOODING AT THE INTERSECTION OF HOUSATONIC STREET AND EAST STREETR
Jun 30, 7:15 PM EDTFLASH FLOOD3 Nnw Becket, MAFLOODING ON ROUTE 8 IN BECKET
Jun 30, 7:30 PM EDTHEAVY RAIN 2.29Lenoxdale, MASTORM TOTAL AS OF 7:30PM

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, 10.0 hours before the alert went out and 71 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 2021-06-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 113 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Albany, NY at 12:00Z on 2021-06-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 66 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
113 J/kg
Mixed-layer CIN
-257 J/kg
Mixed-layer LCL
1162 m above ground
0-6 km bulk shear
45 kt
0-1 km storm-relative helicity
66 m²/s²
0-3 km storm-relative helicity
98 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

As transmitted.

025 
WGUS51 KALY 302158
FFWALY
MAC003-NYC021-010100-
/O.NEW.KALY.FF.W.0005.210630T2158Z-210701T0100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Albany NY
558 PM EDT Wed Jun 30 2021

The National Weather Service in Albany has issued a

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

* Until 900 PM EDT.

* At 558 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 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...
  Pittsfield, Lee, Lenox, Becket, Austerlitz, Housatonic, 
  Stockbridge, Richmond, West Stockbridge, Washington, Alford, 
  Tyringham, Lenox Dale, East Lee, Lenox Station, Leisure Lee, South 
  Lee, Eastover, Wheatleigh and Mahkeenac Shores.

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.

Stay away or be swept away. River banks and culverts can become 
unstable and unsafe.

&&

LAT...LON 4223 7351 4241 7345 4243 7300 4238 7301
      4239 7307 4238 7307 4233 7306 4232 7304
      4231 7303 4231 7302 4231 7301 4231 7300
      4225 7300 4221 7301

FLASH FLOOD...RADAR INDICATED

$$

TAW
2 follow-up statements
764 
WGUS71 KALY 302316
FFSALY

Flash Flood Statement
National Weather Service Albany NY
716 PM EDT Wed Jun 30 2021

NYC021-302326-
/O.CAN.KALY.FF.W.0005.000000T0000Z-210701T0100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Columbia NY-
716 PM EDT Wed Jun 30 2021

...FLASH FLOOD WARNING IS CANCELLED FOR EAST CENTRAL COLUMBIA 
COUNTY...

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

LAT...LON 4224 7342 4241 7338 4243 7300 4238 7301
      4239 7307 4233 7306 4232 7304 4231 7303
      4231 7302 4231 7301 4231 7300 4225 7300
      4221 7302

$$

MAC003-010100-
/O.CON.KALY.FF.W.0005.000000T0000Z-210701T0100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Berkshire MA-
716 PM EDT Wed Jun 30 2021

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 9 PM EDT THIS EVENING 
FOR CENTRAL BERKSHIRE COUNTY...

At 716 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 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...
  Pittsfield, Lee, Lenox, Becket, Housatonic, Stockbridge, Richmond, 
  West Stockbridge, Washington, Tyringham, Leisure Lee, East Lee, 
  Lenox Dale, Lenox Station, Eastover, South Lee, West Becket, New 
  Lenox, The Center At Lenox and Wheatleigh.

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.

Stay away or be swept away. River banks and culverts can become 
unstable and unsafe.

&&

LAT...LON 4224 7342 4241 7338 4243 7300 4238 7301
      4239 7307 4233 7306 4232 7304 4231 7303
      4231 7302 4231 7301 4231 7300 4225 7300
      4221 7302

FLASH FLOOD...RADAR INDICATED

$$

TAW
548 
WGUS71 KALY 010045
FFSALY

Flash Flood Statement
National Weather Service Albany NY
845 PM EDT Wed Jun 30 2021

MAC003-010055-
/O.CAN.KALY.FF.W.0005.000000T0000Z-210701T0100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Berkshire MA-
845 PM EDT Wed Jun 30 2021

...FLASH FLOOD WARNING IS CANCELLED FOR CENTRAL BERKSHIRE COUNTY...

The heavy rain has ended. Flooding is no longer expected to pose a 
threat. Please continue to heed remaining road closures.

LAT...LON 4224 7342 4241 7338 4243 7300 4238 7301
      4239 7307 4233 7306 4232 7304 4231 7303
      4231 7302 4231 7301 4231 7300 4225 7300
      4221 7302

$$

TAW

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 29, 8:33 PM EDTSpecial Weather StatementALYColumbia27 min
Jun 29, 8:53 PM EDTSpecial Weather StatementALYColumbia37 min
Jun 29, 9:29 PM EDTSpecial Weather StatementALYColumbia46 min
Jun 29, 10:53 PM EDTAreal Flood AdvisoryALYColumbia, Greene, Ulster3 hr
Jun 29, 11:05 PM EDTSevere Thunderstorm WarningALYColumbia, Greene, Ulster32 min
Jun 30, 11:14 AM EDTSpecial Weather StatementALYHamilton46 min
Jun 30, 11:59 AM EDTSpecial Weather StatementALYHamilton31 min
Jun 30, 12:50 PM EDTSpecial Weather StatementALYHerkimer25 min
Jun 30, 1:13 PM EDTSpecial Weather StatementALYWarren32 min
Jun 30, 1:16 PM EDTSpecial Weather StatementALYHamilton29 min
Jun 30, 1:22 PM EDTSevere Thunderstorm WarningALYHerkimer38 min
Jun 30, 1:41 PM EDTSevere Thunderstorm WarningALYFulton, Herkimer49 min
Jun 30, 1:45 PM EDTSpecial Weather StatementALYFulton45 min
Jun 30, 2:18 PM EDTSevere Thunderstorm WarningALYFulton, Montgomery, Saratoga, Schenectady, Warren42 min
Jun 30, 2:21 PM EDTSpecial Weather StatementALYSchenectady39 min
Jun 30, 2:41 PM EDTSpecial Weather StatementALYSchoharie34 min
Jun 30, 2:53 PM EDTSpecial Weather StatementALYColumbia37 min
Jun 30, 2:54 PM EDTSevere Thunderstorm WarningALYRensselaer, Saratoga, Schenectady, Washington36 min
Jun 30, 2:59 PM EDTSpecial Weather StatementALYMontgomery31 min
Jun 30, 3:00 PM EDTSpecial Weather StatementALYRensselaer30 min
Jun 30, 3:24 PM EDTSevere Thunderstorm WarningALYRensselaer, Washington30 min
Jun 30, 3:25 PM EDTAreal Flood AdvisoryALYRensselaer44 min
Jun 30, 3:31 PM EDTSpecial Weather StatementALYRensselaer29 min
Jun 30, 3:35 PM EDTAreal Flood AdvisoryALYRensselaer55 min
Jun 30, 3:35 PM EDTSevere Thunderstorm WarningALYColumbia40 min
Jun 30, 4:01 PM EDTSevere Thunderstorm WarningALYRensselaer27 min
Jun 30, 4:36 PM EDTSpecial Weather StatementALYSchoharie24 min
Jun 30, 4:47 PM EDTSevere Thunderstorm WarningALYAlbany, Schoharie43 min
Jun 30, 5:31 PM EDTSpecial Weather StatementALYColumbia44 min
Jun 30, 5:34 PM EDTSevere Thunderstorm WarningALYColumbia56 min
Jun 30, 5:43 PM EDTSpecial Weather StatementALYUlster47 min
Jun 30, 5:45 PM EDTSpecial Weather StatementALYColumbia30 min
Jun 30, 5:49 PM EDTAreal Flood AdvisoryALYColumbia80 min
Jun 30, 6:12 PM EDTSevere Thunderstorm WarningALYDutchess48 min
Jun 30, 6:32 PM EDTSevere Thunderstorm WarningALYUlster28 min
Jun 30, 6:34 PM EDTSevere Thunderstorm WarningALYDutchess, Ulster41 min
Jun 30, 6:58 PM EDTAreal Flood AdvisoryALYDutchess, Ulster107 min
Jun 30, 7:08 PM EDTSevere Thunderstorm WarningALYDutchess67 min
Jun 30, 3:29 PM EDTSpecial Weather StatementALYBerkshire31 min
Jun 30, 3:32 PM EDTSpecial Weather StatementALYBerkshire43 min
Jun 30, 3:48 PM EDTSevere Thunderstorm WarningALYBerkshire14 min
Jun 30, 4:09 PM EDTSevere Thunderstorm WarningALYBerkshire21 min
Jun 30, 4:39 PM EDTSpecial Weather StatementALYBerkshire36 min
Jun 30, 5:09 PM EDTAreal Flood AdvisoryALYBerkshire2 hr

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.