Alert archive / Massachusetts / Flash Flood Warnings in 2012
Flash Flood Warning 13, NWS Boston/Norton, MA
NWS Boston/Norton, MA issued this flash flood warning at Aug 4, 2012, 2:38 PM EDT for Franklin County, Massachusetts. 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
- Aug 4, 2012, 2:38 PM EDT (18:38 UTC)
- Expired
- Aug 4, 2012, 5:30 PM EDT
- In force
- 3 hr
- Issued by
- NWS Boston/Norton, MA
- Area
- Storm-based polygon
- Flood severity
- None
County Franklin County, MA
The radar
The Albany radar (KENX), 91 km from the middle of the area, began a volume at 18:41 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
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 4, 4:31 PM EDT | FLASH FLOOD | Charlemont, MA | WATER 2 FEET DEEP ON ROUTE 2 IN WESTERN CHARLEMONT |
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, 6.6 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.
- Mixed-layer CAPE
- 1175 J/kg
- Mixed-layer CIN
- -113 J/kg
- Mixed-layer LCL
- 1047 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- 21 m²/s²
- 0-3 km storm-relative helicity
- 65 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
077
WGUS51 KBOX 041838
FFWBOX
MAC011-042130-
/O.NEW.KBOX.FF.W.0013.120804T1838Z-120804T2130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TAUNTON MA
238 PM EDT SAT AUG 4 2012
THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A
* FLASH FLOOD WARNING FOR...
NORTHWESTERN FRANKLIN COUNTY IN WESTERN MASSACHUSETTS...
* UNTIL 530 PM EDT
* AT 230 PM EDT...STRONG THUNDERSTORMS CONTINUED TO FORM AND
TRAVERSE THE SAME AREAS OF WESTERN FRANKLIN COUNTY. DOPPLER RADAR
INDICATED THAT UP TO 3 INCHES OF RAIN HAD ALREADY FALLEN IN THE
COLD RIVER BASIN...WHICH RUNS RIGHT ALONG ROUTE 2 IN WESTERN
CHARLEMONT. AN ADDITIONAL 1 TO 2 INCHES OF RAIN IS POSSIBLE
THROUGH THE LATE AFTERNOON HOURS. RISES ARE EXPECTED IN OTHER
BASINS INCLUDING THE NORTH BRANCH OF THE DEERFIELD RIVER.
FLASH FLOODING OF SMALL STREAMS AND URBAN AREAS IS OCCURRING OR
IMMINENT. THOSE NEAR STREAMS AND CREEKS...OR IN AREAS PRONE TO
FLOODING SHOULD MOVE TO HIGHER GROUND IMMEDIATELY. AVOID FLOODED
ROADS. THE WATER MAY BE TOO DEEP TO ALLOW VEHICLES TO CROSS SAFELY...
OR THE ROADWAY MAY BE UNDERMINED. TURN AROUND...DONT DROWN!
&&
LAT...LON 4274 7301 4274 7286 4259 7286 4259 7297
4266 7296 4266 7299 4268 7299 4270 7296
4270 7300
$$
FIELD2 follow-up statements
407
WGUS71 KBOX 041912
FFSBOX
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
312 PM EDT SAT AUG 4 2012
MAC011-042130-
/O.CON.KBOX.FF.W.0013.000000T0000Z-120804T2130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
FRANKLIN MA-
312 PM EDT SAT AUG 4 2012
...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 530 PM EDT FOR
NORTHWESTERN FRANKLIN COUNTY...
AT 310 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE NUMEROUS THUNDERSTORMS WITH TORRENTIAL RAINS AND FREQUENT
LIGHTNING OVER WESTERN FRANKLIN COUNTY. THE FLASH FLOOD THREAT HAS
INCREASED AND THERE IS A POTENTIAL FOR A VERY SERIOUS SITUATION TO
DEVELOP IF SEVERAL MORE INCHES OF RAIN OCCUR.
DOPPLER RADAR WAS INDICATING THAT 3 TO 4 INCHES OF RAIN HAVE FALLEN
NEAR THE BORDER OF BERKSHIRE AND FRANKLIN COUNTY...OVER THE COLD
RIVER AND NORTH BRANCH OF THE DEERFIELD RIVER. THE POTENTIAL EXISTS
FOR ANOTHER 2 TO 3 INCHES TO FALL AS STORMS CONTINUE TO FORM OVER
THE SAME AREAS.
LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
CHARLEMONT...ROWE...AND MONROE.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...COUNTRY ROADS...AS WELL AS FARMLAND ALONG THE
BANKS OF CREEKS AND STREAMS.
MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE YOUR VEHICLE INTO
AREAS WHERE THE WATER COVERS THE ROADWAY. FLOOD WATERS ARE USUALLY
DEEPER THAN THEY APPEAR. JUST ONE FOOT OF FLOWING WATER IS POWERFUL
ENOUGH TO SWEEP VEHICLES OFF THE ROAD. WHEN ENCOUNTERING FLOODED
ROADS MAKE THE SMART CHOICE...TURN AROUND...DONT DROWN.
CAMPERS AND HIKERS SHOULD AVOID STREAMS OR CREEKS.
TO REPORT FLOODING...HAVE THE NEAREST LAW ENFORCEMENT AGENCY RELAY
YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN
TAUNTON.
&&
LAT...LON 4274 7301 4274 7286 4259 7286 4259 7297
4266 7296 4266 7299 4268 7299 4270 7296
4270 7300
$$
FIELD225
WGUS71 KBOX 041913 CCA
FFSBOX
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
313 PM EDT SAT AUG 4 2012
MAC011-042130-
/O.CON.KBOX.FF.W.0013.000000T0000Z-120804T2130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
FRANKLIN MA-
313 PM EDT SAT AUG 4 2012
...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 530 PM EDT FOR
NORTHWESTERN FRANKLIN COUNTY...
AT 310 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE NUMEROUS THUNDERSTORMS WITH TORRENTIAL RAINS AND FREQUENT
LIGHTNING OVER WESTERN FRANKLIN COUNTY. THE FLASH FLOOD THREAT HAS
INCREASED AND THERE IS A POTENTIAL FOR A VERY SERIOUS SITUATION TO
DEVELOP IF SEVERAL MORE INCHES OF RAIN OCCUR.
DOPPLER RADAR WAS INDICATING THAT 3 TO 4 INCHES OF RAIN HAVE FALLEN
NEAR THE BORDER OF BERKSHIRE AND FRANKLIN COUNTY...OVER THE COLD
RIVER AND NORTH BRANCH OF THE DEERFIELD RIVER. THE POTENTIAL EXISTS
FOR ANOTHER 2 TO 3 INCHES TO FALL AS STORMS CONTINUE TO FORM OVER
THE SAME AREAS.
LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
CHARLEMONT...ROWE...AND MONROE.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
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.
MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE YOUR VEHICLE INTO
AREAS WHERE THE WATER COVERS THE ROADWAY. FLOOD WATERS ARE USUALLY
DEEPER THAN THEY APPEAR. JUST ONE FOOT OF FLOWING WATER IS POWERFUL
ENOUGH TO SWEEP VEHICLES OFF THE ROAD. WHEN ENCOUNTERING FLOODED
ROADS MAKE THE SMART CHOICE...TURN AROUND...DONT DROWN.
CAMPERS AND HIKERS SHOULD AVOID STREAMS OR CREEKS.
TO REPORT FLOODING...HAVE THE NEAREST LAW ENFORCEMENT AGENCY RELAY
YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN
TAUNTON.
&&
LAT...LON 4274 7301 4274 7286 4259 7286 4259 7297
4266 7296 4266 7299 4268 7299 4270 7296
4270 7300
$$
FIELDThe office that day
Everything else NWS Boston/Norton, MA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 4, 1:17 PM EDT | Heat Advisory | BOX | Norfolk, Worcester | 3 hr |
| Aug 4, 1:42 PM EDT | Special Weather Statement | BOX | Franklin | 48 min |
| Aug 4, 1:53 PM EDT | Areal Flood Advisory | BOX | Franklin | 3 hr |
| Aug 4, 4:23 PM EDT | Areal Flood Advisory | BOX | Franklin, Hampshire | 2 hr |
| Aug 4, 5:41 PM EDT | Special Weather Statement | BOX | Middlesex | 34 min |
| Aug 4, 5:43 PM EDT | Severe Thunderstorm Warning | BOX | Middlesex, Worcester | 47 min |
| Aug 4, 6:02 PM EDT | Areal Flood Advisory | BOX | Franklin, Middlesex, Worcester | 3 hr |
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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.