Alert archive / Massachusetts / Flash Flood Warnings in 2013
Flash Flood Warning 46, NWS Boston/Norton, MA
NWS Boston/Norton, MA issued this flash flood warning at Aug 31, 2013, 3:36 PM EDT for Franklin County, Massachusetts. It was in force for 4 hr. 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 31, 2013, 3:36 PM EDT (19:36 UTC)
- Expired
- Aug 31, 2013, 7:30 PM EDT
- In force
- 4 hr
- Issued by
- NWS Boston/Norton, MA
- Area
- Storm-based polygon
- Flood severity
- None
County Franklin County, MA
The radar
The Albany radar (KENX), 123 km from the middle of the area, began a volume at 19:37 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 31, 4:15 PM EDT | FLOOD | Greenfield, MA | EDEN TRAIL FLOODED AND IMPASSABLE |
| Aug 31, 5:18 PM EDT | FLASH FLOOD | Greenfield, MA | PART OF STETSON DRIVE IS WASHED OUT...THE ROAD HAS BEEN CLOSED. |
| Aug 31, 5:40 PM EDT | FLASH FLOOD | Bernardston, MA | SEVERAL DIRT ROADS WERE WASHED OUT....VIA FACEBOOK |
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, 7.6 hours before the alert went out and 104 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
- 1006 J/kg
- Mixed-layer CIN
- -62 J/kg
- Mixed-layer LCL
- 684 m above ground
- 0-6 km bulk shear
- 14 kt
- 0-1 km storm-relative helicity
- 123 m²/s²
- 0-3 km storm-relative helicity
- 157 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
472
WGUS51 KBOX 311936
FFWBOX
MAC011-312130-
/O.NEW.KBOX.FF.W.0046.130831T1936Z-130831T2130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TAUNTON MA
336 PM EDT SAT AUG 31 2013
THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A
* FLASH FLOOD WARNING FOR...
NORTHERN FRANKLIN COUNTY IN WESTERN MASSACHUSETTS...
* UNTIL 530 PM EDT
* AT 336 PM EDT...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING
HEAVY RAIN ACROSS THE WARNED AREA. FLASH FLOODING IS EXPECTED TO
BEGIN SHORTLY.
* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
GREENFIELD...ORANGE...DEERFIELD...MONTAGUE...NORTHFIELD...
BERNARDSTON...CONWAY...SHELBURNE...ERVING...COLRAIN...GILL...
WENDELL...WARWICK AND LEYDEN.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A FLASH FLOOD WARNING IS ISSUED FOR RAPID AND POTENTIALLY LIFE
THREATENING FLOODING. IN URBAN AREAS AVOID FLOODED ROADS AND OBEY
ROAD CLOSURES. THOSE NEAR SMALL STREAMS MUST HEAD FOR HIGHER GROUND
IMMEDIATELY.
&&
LAT...LON 4273 7265 4272 7233 4255 7228 4253 7270
4271 7275
$$
RLG3 follow-up statements
810
WGUS51 KBOX 312126
FFWBOX
MAC011-312330-
/O.EXT.KBOX.FF.W.0046.000000T0000Z-130831T2330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TAUNTON MA
526 PM EDT SAT AUG 31 2013
THE NATIONAL WEATHER SERVICE IN TAUNTON HAS EXTENDED THE
* FLASH FLOOD WARNING FOR...
NORTHERN FRANKLIN COUNTY IN WESTERN MASSACHUSETTS...
* UNTIL 730 PM EDT
* AT 523 PM EDT...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING
HEAVY RAIN ACROSS THE WARNED AREA. RADAR ESTIMATED RAINFALL
INDICATES TOTAL RAINFALL BETWEEN 4 AND 6 INCHES OF RAIN ALREADY.
THIS STORM IS NEARLY STATIONARY AND WILL CONTINUE TO PRODUCE RAIN
OVER THE GREENFIELD/LEYDEN AREA IN PARTICULAR. FLASH FLOODING IS
EXPECTED TO BEGIN SHORTLY.
* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
GREENFIELD...ORANGE...DEERFIELD...MONTAGUE...NORTHFIELD...
BERNARDSTON...CONWAY...SHELBURNE...ERVING...COLRAIN...GILL...
WENDELL...WARWICK AND LEYDEN.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
MOST FLOOD DEATHS OCCUR IN VEHICLES. TURN AROUND...DONT DROWN.
&&
LAT...LON 4273 7265 4272 7233 4255 7228 4253 7270
4271 7275
$$
RLG894
WGUS71 KBOX 312253
FFSBOX
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
653 PM EDT SAT AUG 31 2013
MAC011-312330-
/O.CON.KBOX.FF.W.0046.000000T0000Z-130831T2330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
FRANKLIN MA-
653 PM EDT SAT AUG 31 2013
...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 730 PM EDT FOR
NORTHERN FRANKLIN COUNTY...
AT 648 PM EDT...WHILE THE INITIAL STORMS CAUSING THE HEAVY RAIN HAVE
MOVED OUT OF THE WARNED AREA...MORE STORMS ARE ABOUT TO MOVE INTO
NORTHERN FRANKLIN COUNTY. THESE NEW STORMS WILL BE CAPABLE OF
PRODUCING ADDITIONAL FLOODING. RADAR ESTIMATED RAINFALL FROM THE
PREVIOUS STORM WAS BETWEEN 4 AND 5 INCHES.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A FLASH FLOOD WARNING IS ISSUED FOR RAPID AND POTENTIALLY LIFE
THREATENING FLOODING. IN URBAN AREAS AVOID FLOODED ROADS AND OBEY
ROAD CLOSURES. THOSE NEAR SMALL STREAMS MUST HEAD FOR HIGHER GROUND
IMMEDIATELY.
&&
LAT...LON 4273 7265 4272 7233 4255 7228 4253 7270
4271 7275
$$
RLG554
WGUS71 KBOX 312324
FFSBOX
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
724 PM EDT SAT AUG 31 2013
MAC011-312333-
/O.EXP.KBOX.FF.W.0046.000000T0000Z-130831T2330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
FRANKLIN MA-
724 PM EDT SAT AUG 31 2013
...THE FLASH FLOOD WARNING FOR NORTHERN FRANKLIN COUNTY WILL EXPIRE
AT 730 PM EDT...
WHILE IT IS STILL RAINING ACROSS THE WARNED AREA. THE STORM HAS
WEAKENED AND IS NO LONGER PRODUCING HIGH RAINFALL RATES. FLOODING
IS NO LONGER EXPECTED TO POSE A THREAT.
LAT...LON 4273 7265 4272 7233 4255 7228 4253 7270
4271 7275
$$
RLGThe office that day
Everything else NWS Boston/Norton, MA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 31, 1:57 PM EDT | Small Craft Advisory | BOX | 5 hr | |
| Aug 31, 3:20 PM EDT | Special Weather Statement | BOX | Franklin | 40 min |
| Aug 31, 3:34 PM EDT | Severe Thunderstorm Warning | BOX | Franklin | 41 min |
| Aug 31, 7:13 PM EDT | Special Weather Statement | BOX | Hampshire | 47 min |
Nearby
Flash Flood Warnings in Massachusetts, 2013Every flash flood warning in 2013
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.