Alert archive / Massachusetts / Flash Flood Warnings in 2005

Flash Flood Warning 1, NWS Boston/Norton, MA

June 9, 2005Franklin County, Massachusetts

NWS Boston/Norton, MA issued this flash flood warning at Jun 9, 2005, 2:44 PM EDT for Franklin County, Massachusetts. It was in force for 2 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
Jun 9, 2005, 2:44 PM EDT (18:44 UTC)
Expired
Jun 9, 2005, 4:45 PM EDT
In force
2 hr
Issued by
NWS Boston/Norton, MA
Area
Counties, with a storm outline in the text

County Franklin County, MA

The radar

The Albany radar (KENX), 112 km from the middle of the area, began a volume at 18:46 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, 6.7 hours before the alert went out and 95 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 2005-06-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 65 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 2005-06-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 52 square meters per square second.1939Sfc1 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
65 J/kg
Mixed-layer CIN
-278 J/kg
Mixed-layer LCL
810 m above ground
0-6 km bulk shear
21 kt
0-1 km storm-relative helicity
52 m²/s²
0-3 km storm-relative helicity
116 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.

000 
WGUS51 KBOX 091845
FFWBOX
MAC011-092045-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TAUNTON MA
244 PM EDT THU JUN 9 2005

THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTHERN FRANKLIN COUNTY IN WESTERN MASSACHUSETTS

* UNTIL 445 PM EDT

* AT 236 PM EDT...VERY HEAVY RAIN WAS REPORTED FROM A THUNDERSTORM
  NEAR CONWAY...OR ABOUT 9 MILES SOUTHWEST OF GREENFIELD. THE STORM
  PRODUCING VERY HEAVY RAIN WAS NEARLY STATIONARY.

* THE THUNDERSTORM PRODUCING VERY HEAVY RAIN WILL BE NEAR...
  CONWAY BY 255 PM EDT
  WHATELY BY 400 PM EDT
  SUNDERLAND BY 415 PM EDT

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY.

THE HEAVY RAINFALL AND SLOW MOVEMENT OF THESE STORMS MAY RESULT IN
FLOODING OF ROAD INTERSECTIONS AND LOW LYING AREAS...INCLUDING
UNDERPASSES AND TUNNELS. KNOW ALTERNATE ROUTES FOR TRAVEL IN CASE
ROADS BECOME IMPASSABLE.

LAT...LON 4258 7279 4250 7283 4243 7262 4246 7255
      4254 7261

$$

AED
1 follow-up statement
000 
WGUS71 KBOX 091954
FFSBOX
MAC011-092002-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
352 PM EDT THU JUN 9 2005

...THE FLASH FLOOD WARNING FOR FOR SOUTHERN FRANKLIN COUNTY IS
CANCELLED...

THE FLASH FLOOD WARNING ISSUED EARLIER FOR SOUTHERN FRANKLIN COUNTY 
HAS BEEN CANCELLED.  THE THUNDERSTORM PRODUCING HEAVY RAIN OVER 
FRANKLIN COUNTY HAS DISSIPATED.  THEREFORE THE THREAT OF FLASH 
FLOODING HAS ENDED.

LAT...LON 4258 7279 4250 7283 4243 7262 4246 7255
      4254 7261

$$

Nearby

Flash Flood Warnings in Massachusetts, 2005Every flash flood warning in 2005

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.