Alert archive / Massachusetts / Flash Flood Warnings in 2014
Flash Flood Warning 6, NWS Boston/Norton, MA
NWS Boston/Norton, MA issued this flash flood warning at May 27, 2014, 10:36 PM EDT for 4 counties in Massachusetts. It was in force for 114 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- May 27, 2014, 10:36 PM EDT (02:36 UTC)
- Expired
- May 28, 2014, 12:30 AM EDT
- In force
- 114 min
- Issued by
- NWS Boston/Norton, MA
- Area
- Storm-based polygon
- Flood severity
- None
Counties Essex County, MA, Middlesex County, MA, Norfolk County, MA, Suffolk County, MA
The radar
The Boston radar (KBOX), 45 km from the middle of the area, began a volume at 02:35 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
Chatham, MA (KCHH), launched 00:00Z, 2.6 hours before the alert went out and 113 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 529 m above ground
- 0-6 km bulk shear
- 49 kt
- 0-1 km storm-relative helicity
- 249 m²/s²
- 0-3 km storm-relative helicity
- 375 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
775
WGUS51 KBOX 280236
FFWBOX
MAC009-017-021-025-280430-
/O.NEW.KBOX.FF.W.0006.140528T0236Z-140528T0430Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TAUNTON MA
1036 PM EDT TUE MAY 27 2014
THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A
* FLASH FLOOD WARNING FOR...
SUFFOLK COUNTY IN EASTERN MASSACHUSETTS...
SOUTHEASTERN MIDDLESEX COUNTY IN NORTHEAST MASSACHUSETTS...
NORTHEASTERN NORFOLK COUNTY IN EASTERN MASSACHUSETTS...
SOUTH CENTRAL ESSEX COUNTY IN NORTHEAST MASSACHUSETTS...
* UNTIL 1230 AM EDT
* AT 1034 PM EDT...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING
HEAVY RAIN ACROSS AREAS JUST WEST OF BOSTON INCLUDING SUDBURY AND
WAYLAND. UP TO ONE TO TWO INCHES OF RAIN HAS ALREADY FALLEN WITH
THIS AREA OF STORMS. EXPECT THAT THIS HEAVY RAINFALL WILL CONTINUE
AS THE STORM MOVES INTO THE BOSTON METRO AREA...RESULTING IN URBAN
FLASH FLOODING.
* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
BOSTON...CAMBRIDGE...QUINCY...LYNN...NEWTON...SOMERVILLE...
FRAMINGHAM...WALTHAM...MALDEN...BROOKLINE...MEDFORD...WEYMOUTH...
REVERE...ARLINGTON...EVERETT...SALEM...WOBURN...BRAINTREE...
CHELSEA...NATICK...RANDOLPH...WATERTOWN...LEXINGTON...NEEDHAM...
NORWOOD...WELLESLEY...MILTON...MELROSE...STOUGHTON AND SAUGUS.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
RAPID AND POTENTIALLY LIFE THREATENING FLOODING OF STREETS AND
UNDERPASSES IS IMMINENT. DO NOT DRIVE THROUGH FLOODED ROADS AND FIND
ALTERNATE ROUTES.
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 4246 7094 4242 7091 4242 7099 4237 7097
4234 7087 4236 7096 4233 7094 4229 7102
4227 7099 4227 7095 4230 7096 4233 7089
4226 7092 4210 7107 4230 7144 4249 7127
4249 7086
$$
RLG1 follow-up statement
060
WGUS71 KBOX 280337
FFSBOX
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
1137 PM EDT TUE MAY 27 2014
MAC009-280346-
/O.CAN.KBOX.FF.W.0006.000000T0000Z-140528T0430Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
ESSEX MA-
1137 PM EDT TUE MAY 27 2014
...THE FLASH FLOOD WARNING FOR SOUTH CENTRAL ESSEX COUNTY IS
CANCELLED...
THE HEAVY RAIN HAS ENDED...AND FLOODING IS NO LONGER EXPECTED TO POSE
A THREAT. PLEASE CONTINUE TO HEED ALL ROAD CLOSURES.
LAT...LON 4226 7092 4210 7107 4230 7144 4242 7126
4232 7096 4229 7102 4227 7099 4227 7095
4230 7096 4230 7090
$$
MAC017-021-025-280430-
/O.CON.KBOX.FF.W.0006.000000T0000Z-140528T0430Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SUFFOLK MA-MIDDLESEX MA-NORFOLK MA-
1137 PM EDT TUE MAY 27 2014
...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1230 AM EDT FOR
SUFFOLK...SOUTHEASTERN MIDDLESEX AND NORTHEASTERN NORFOLK COUNTIES...
AT 1136 PM EDT...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING
HEAVY RAIN ACROSS THE WARNED AREA. UP TO TWO INCHES OF RAIN HAVE
ALREADY FALLEN. HEAVIEST RAINFALL IS OCCURRING ACROSS THE
NATICK...WESTWOOD...NORWOOD...AND CANTON AREAS.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
RAPID AND POTENTIALLY LIFE THREATENING FLOODING OF STREETS AND
UNDERPASSES IS IMMINENT. DO NOT DRIVE THROUGH FLOODED ROADS AND FIND
ALTERNATE ROUTES.
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 4226 7092 4210 7107 4230 7144 4242 7126
4232 7096 4229 7102 4227 7099 4227 7095
4230 7096 4230 7090
$$
RLGThe office that day
Everything else NWS Boston/Norton, MA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 27, 10:39 PM EDT | Areal Flood Advisory | BOX | Middlesex, Worcester | 2 hr |
Nearby
Flash Flood Warnings in Massachusetts, 2014Every flash flood warning in 2014
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.