Alert archive / Massachusetts / Flash Flood Warnings in 2017
Flash Flood Warning 24, NWS Boston/Norton, MA
NWS Boston/Norton, MA issued this flash flood warning at Aug 3, 2017, 6:31 PM EDT for Franklin County, Massachusetts. It was in force for 119 min. 3 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
- Aug 3, 2017, 6:31 PM EDT (22:31 UTC)
- Expired
- Aug 3, 2017, 8:30 PM EDT
- In force
- 119 min
- Issued by
- NWS Boston/Norton, MA
- Area
- Storm-based polygon
- Flood severity
- None
County Franklin County, MA
The radar
The Albany radar (KENX), 92 km from the middle of the area, began a volume at 22:34 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 3, 7:15 PM EDT | FLASH FLOOD | Heath, MA | BROOK EXCEEDED CULVERT FLOODING A SECTION OF ROUTE 8A |
| Aug 3, 7:15 PM EDT | FLASH FLOOD | Heath, MA | ROWE ROAD WASHED OUT IN SEVERAL PLACES. |
| Aug 3, 7:30 PM EDT | FLASH FLOOD | Rowe, MA | SIDE OF ROADS WASHED OUT |
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, 10.5 hours before the alert went out and 72 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
- 12 J/kg
- Mixed-layer CIN
- -273 J/kg
- Mixed-layer LCL
- 855 m above ground
- 0-6 km bulk shear
- 11 kt
- 0-1 km storm-relative helicity
- -15 m²/s²
- 0-3 km storm-relative helicity
- 30 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
308
WGUS51 KBOX 032231
FFWBOX
MAC011-040030-
/O.NEW.KBOX.FF.W.0024.170803T2231Z-170804T0030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Taunton MA
631 PM EDT THU AUG 3 2017
The National Weather Service in Taunton has issued a
* Flash Flood Warning for...
Northwestern Franklin County in western Massachusetts...
* Until 830 PM EDT
* At 630 PM EDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Up to two inches of rain have
already fallen. Flash flooding is expected to begin shortly.
* Some locations that will experience flooding include...
Monroe, Charlemont, Heath and Rowe.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Flash Flood Warning means that flooding will occur quickly, and
could be life threatening for those who try to drive through flooded
roads or underpasses. Find alternate routes. Those near small streams
need to get to higher ground immediately.
&&
LAT...LON 4268 7298 4270 7295 4270 7298 4272 7298
4272 7286 4266 7282 4265 7295 4267 7296
4266 7298
$$
Frank3 follow-up statements
269
WGUS71 KBOX 032303
FFSBOX
Flash Flood Statement
National Weather Service Taunton MA
703 PM EDT THU AUG 3 2017
MAC011-040030-
/O.CON.KBOX.FF.W.0024.000000T0000Z-170804T0030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Franklin MA-
703 PM EDT THU AUG 3 2017
...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 830 PM EDT FOR
NORTHWESTERN FRANKLIN COUNTY...
At 701 PM EDT, Doppler radar indicated thunderstorms producing
torrential rain across the warned area. Radar estimates that 3.90
inches has fallen in between Rowe and Heath. Flash flooding is
expected. Do not drive through flooded roadways.
Some locations that will experience flooding include...
Charlemont, Heath and Rowe.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Flash Flood Warning means that flooding will occur quickly, and
could be life threatening for those who try to drive through flooded
roads or underpasses. Find alternate routes. Those near small streams
need to get to higher ground immediately.
&&
LAT...LON 4267 7294 4269 7292 4270 7293 4271 7291
4272 7286 4266 7282 4265 7295 4266 7294
$$
Frank339
WGUS71 KBOX 032332
FFSBOX
Flash Flood Statement
National Weather Service Taunton MA
732 PM EDT THU AUG 3 2017
MAC011-040030-
/O.CON.KBOX.FF.W.0024.000000T0000Z-170804T0030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Franklin MA-
732 PM EDT THU AUG 3 2017
...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 830 PM EDT FOR
NORTHWESTERN FRANKLIN COUNTY...
At 731 PM EDT, Doppler radar indicated that the heaviest rain has
exited the region. However, radar estimated that 4 inches of rain
fell in a very short time between Rowe and Heath. Therefore, runoff
may still result in flash flooding through 830 pm. Do not drive
through flooded roadways.
Some locations that will experience flooding include...
Heath and Rowe.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Flash Flood Warning means that flooding will occur quickly, and
could be life threatening for those who try to drive through flooded
roads or underpasses. Find alternate routes. Those near small streams
need to get to higher ground immediately.
&&
LAT...LON 4267 7294 4269 7292 4270 7293 4271 7291
4272 7286 4266 7282 4265 7295 4266 7294
$$
Frank699
WGUS71 KBOX 040003
FFSBOX
Flash Flood Statement
National Weather Service Taunton MA
803 PM EDT THU AUG 3 2017
MAC011-040013-
/O.CAN.KBOX.FF.W.0024.000000T0000Z-170804T0030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Franklin MA-
803 PM EDT THU AUG 3 2017
...THE FLASH FLOOD WARNING FOR NORTHWESTERN FRANKLIN COUNTY IS
CANCELLED...
The heavy rain has ended. Flooding is no longer expected to pose a
threat. Please continue to heed any remaining road closures from the
earlier heavy rain.
LAT...LON 4267 7294 4269 7292 4270 7293 4271 7291
4272 7286 4266 7282 4265 7295 4266 7294
$$
FrankThe office that day
Everything else NWS Boston/Norton, MA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 2, 8:09 PM EDT | Areal Flood Advisory | BOX | Bristol | 66 min |
| Aug 3, 6:03 PM EDT | Special Weather Statement | BOX | Franklin | 42 min |
| Aug 3, 6:06 PM EDT | Areal Flood Advisory | BOX | Franklin | 54 min |
| Aug 3, 7:06 PM EDT | Areal Flood Advisory | BOX | Franklin | 114 min |
| Aug 3, 7:28 PM EDT | Special Weather Statement | BOX | Franklin | 47 min |
Nearby
Flash Flood Warnings in Massachusetts, 2017Every flash flood warning in 2017
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.