Alert archive / Massachusetts / Flash Flood Warnings in 2012

Flash Flood Warning 6, NWS Albany, NY

August 11, 2012Berkshire County, Massachusetts

NWS Albany, NY issued this flash flood warning at Aug 11, 2012, 7:14 PM EDT for Berkshire County, Massachusetts. It was in force for 3 hr. 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 11, 2012, 7:14 PM EDT (23:14 UTC)
Expired
Aug 11, 2012, 9:45 PM EDT
In force
3 hr
Issued by
NWS Albany, NY
Area
Storm-based polygon
Flood severity
None

County Berkshire County, MA

The radar

The Albany radar (KENX), 83 km from the middle of the area, began a volume at 23:16 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, 11.2 hours before the alert went out and 67 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 2012-08-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 225 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 2012-08-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 45 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
225 J/kg
Mixed-layer CIN
-48 J/kg
Mixed-layer LCL
600 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
45 m²/s²
0-3 km storm-relative helicity
105 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

164 
WGUS51 KALY 112314
FFWALY
MAC003-120215-
/O.NEW.KALY.FF.W.0006.120811T2314Z-120812T0215Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE ALBANY NY
714 PM EDT SAT AUG 11 2012

THE NATIONAL WEATHER SERVICE IN ALBANY HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  BERKSHIRE COUNTY IN WESTERN MASSACHUSETTS...
  THIS INCLUDES THE CITIES OF...PITTSFIELD...NORTH ADAMS...GREAT
  BARRINGTON...

* UNTIL 1015 PM EDT

* AT 712 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  FLASH FLOODING FROM A THUNDERSTORM OVER THE WARNED AREA.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO LEE...
  SAVOY...NEW ASHFORD...LENOX...FLORIDA...CHESHIRE...BECKET AND ADAMS

PRECAUTIONARY/PREPAREDNESS ACTIONS...

ADDITIONAL RAINFALL AMOUNTS OF 2 INCHES PER HOUR ARE POSSIBLE IN THE 
WARNED AREA.

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...URBAN AREAS...HIGHWAYS...STREETS AND UNDERPASSES
AS WELL AS OTHER DRAINAGE AREAS AND LOW LYING SPOTS.

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...COUNTRY ROADS...AS WELL AS FARMLAND ALONG THE
BANKS OF CREEKS AND STREAMS.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. MOVE
UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS
SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

PLEASE REPORT FLOODING TO THE NATIONAL WEATHER SERVICE BY EMAIL AT
ALB.STORMREPORT@NOAA.GOV OR ON FACEBOOK AT
WWW.FACEBOOK.COM/US.NATIONALWEATHERSERVICE.ALBANY.GOV.

&&

LAT...LON 4239 7300 4238 7306 4233 7306 4231 7299
      4215 7303 4214 7304 4217 7346 4248 7337
      4274 7313 4274 7302 4271 7302 4270 7295
      4267 7298 4266 7296 4263 7294

$$

SNYDER
1 follow-up statement
389 
WGUS71 KALY 120145
FFSALY

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE ALBANY NY
945 PM EDT SAT AUG 11 2012

MAC003-120154-
/O.CAN.KALY.FF.W.0006.000000T0000Z-120812T0215Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BERKSHIRE MA-
945 PM EDT SAT AUG 11 2012

...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR BERKSHIRE COUNTY...

SHOWERS AND THUNDERSTORMS WITH HEAVY RAINFALL HAVE MOVED OUT THE 
AREA...THUS THE THREAT OF FLASH FLOODING HAS ENDED.

PLEASE REPORT FLOODING TO THE NATIONAL WEATHER SERVICE BY EMAIL AT
ALB.STORMREPORT@NOAA.GOV OR ON FACEBOOK AT
WWW.FACEBOOK.COM/US.NATIONALWEATHERSERVICE.ALBANY.GOV

LAT...LON 4239 7300 4238 7306 4233 7306 4231 7299
      4215 7303 4214 7304 4217 7346 4248 7337
      4274 7313 4274 7302 4271 7302 4270 7295
      4267 7298 4266 7296 4263 7294

$$

JPV

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 11, 12:26 PM EDTSevere Thunderstorm WarningALYBerkshire64 min
Aug 11, 12:35 PM EDTTornado WarningALYBerkshire25 min
Aug 11, 2:21 PM EDTAreal Flood AdvisoryALYBerkshire3 hr
Aug 11, 2:52 PM EDTFlash Flood WarningALYBerkshire6 hr
Aug 11, 3:38 PM EDTSevere Thunderstorm WarningALYBerkshire67 min
Aug 11, 4:41 PM EDTAreal Flood AdvisoryALYBerkshire3 hr
Aug 11, 4:48 PM EDTSpecial Weather StatementALYFranklin27 min
Aug 11, 4:59 PM EDTSevere Thunderstorm WarningALYBerkshire61 min

Nearby

Flash Flood Warnings in Massachusetts, 2012Every flash flood warning in 2012

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.