Alert archive / Massachusetts / Flash Flood Watches in 2017
Flash Flood Watch 8, NWS Boston/Norton, MA
NWS Boston/Norton, MA issued this flash flood watch at Oct 23, 2017, 4:01 PM EDT for 13 counties in Massachusetts; 5 counties in Rhode Island; Capitol Planning Region, Northeastern Connecticut Planning Region, Connecticut. It took effect at Oct 24, 2017, 6:00 PM EDT. It was in force for 26 hr.
The area
The counties it named.
The facts
- Issued
- Oct 23, 2017, 4:01 PM EDT (20:01 UTC)
- In effect from
- Oct 24, 2017, 6:00 PM EDT
- Expired
- Oct 25, 2017, 8:00 PM EDT
- In force
- 26 hr
- Issued by
- NWS Boston/Norton, MA
- Flood severity
- None
Counties Capitol Planning Region, CT, Northeastern Connecticut Planning Region, CT, Barnstable County, MA, Bristol County, MA, Dukes County, MA, Essex County, MA, Franklin County, MA, Hampden County, MA, Hampshire County, MA, Middlesex County, MA, Nantucket County, MA, Norfolk County, MA, Plymouth County, MA, Suffolk County, MA, Worcester County, MA, Bristol County, RI, Kent County, RI, Newport County, RI, Providence County, RI, Washington County, RI
The radar
The Boston radar (KBOX), 26 km from the middle of the area, began a volume at 20:04 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 12:00Z, 8.0 hours before the alert went out and 127 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
- 1179 m above ground
- 0-6 km bulk shear
- 11 kt
- 0-1 km storm-relative helicity
- -16 m²/s²
- 0-3 km storm-relative helicity
- 21 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
536 WGUS61 KBOX 232001 FFABOX URGENT - IMMEDIATE BROADCAST REQUESTED Flood Watch National Weather Service Taunton MA 401 PM EDT Mon Oct 23 2017 CTZ002-MAZ002-003-008>011-240415- /O.NEW.KBOX.FF.A.0008.171024T2200Z-171025T1400Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Hartford CT-Western Franklin MA-Eastern Franklin MA- Western Hampshire MA-Western Hampden MA-Eastern Hampshire MA- Eastern Hampden MA- Including the cities of Hartford, Windsor Locks, Charlemont, Greenfield, Orange, Chesterfield, Blandford, Amherst, Northampton, and Springfield 401 PM EDT Mon Oct 23 2017 ...FLASH FLOOD WATCH IN EFFECT FROM TUESDAY EVENING THROUGH WEDNESDAY MORNING... The National Weather Service in Taunton has issued a * Flash Flood Watch for the east slopes of the Berkshires and Litchfield hills as well as the Connecticut river valley. * From Tuesday evening through Wednesday morning * Periods of moderate to heavy rain with the potential for embedded thunderstorms will move over western Massachusetts and Connecticut late tomorrow into tomorrow night. High rainfall rates, combined with a prolonged period of moderate to heavy rain could lead to localized flash flooding at some of the faster responding streams and rivers. Some localized urban flooding is also possible. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flash Flood Watch means that conditions may develop that lead to flash flooding. Flash flooding is a very dangerous situation. You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$
11 follow-up statements
127 WGUS61 KBOX 240203 FFABOX Flood Watch National Weather Service Taunton MA 1003 PM EDT Mon Oct 23 2017 CTZ002-MAZ002-003-008>011-241015- /O.CON.KBOX.FF.A.0008.171024T2200Z-171025T1400Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Hartford CT-Western Franklin MA-Eastern Franklin MA- Western Hampshire MA-Western Hampden MA-Eastern Hampshire MA- Eastern Hampden MA- Including the cities of Hartford, Windsor Locks, Charlemont, Greenfield, Orange, Chesterfield, Blandford, Amherst, Northampton, and Springfield 1003 PM EDT Mon Oct 23 2017 ...FLASH FLOOD WATCH REMAINS FROM TUESDAY EVENING THROUGH WEDNESDAY MORNING... The Flash Flood Watch continues for * Franklin, Hampden, and Hampshire Counties in Western Massachusetts, as well as Hartford County in Northern Connecticut * From Tuesday evening through Wednesday morning. * Moderate to heavy rain will impact Western Massachusetts and Western Connecticut late Tuesday into Tuesday night. Excessive rainfall, especially with any thunderstorms, could lead to localized flash flooding at some of the faster responding streams and rivers in the region. Localized urban flooding is also possible. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flash Flood Watch means that conditions may develop that lead to flash flooding. Flash flooding is a very dangerous situation. You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$
411 WGUS61 KBOX 240743 FFABOX Flood Watch National Weather Service Taunton MA 343 AM EDT Tue Oct 24 2017 CTZ002-MAZ002-003-008>011-241545- /O.CON.KBOX.FF.A.0008.171024T2200Z-171025T1400Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Hartford CT-Western Franklin MA-Eastern Franklin MA- Western Hampshire MA-Western Hampden MA-Eastern Hampshire MA- Eastern Hampden MA- Including the cities of Hartford, Windsor Locks, Charlemont, Greenfield, Orange, Chesterfield, Blandford, Amherst, Northampton, and Springfield 343 AM EDT Tue Oct 24 2017 ...FLASH FLOOD WATCH FROM THIS EVENING THROUGH WEDNESDAY MORNING... The Flash Flood Watch continues for * Franklin, Hampden, and Hampshire Counties in Western Massachusetts, as well as Hartford County in Northern Connecticut * From this evening through Wednesday morning. * Moderate to heavy rain will impact Western Massachusetts and Western Connecticut through tonight with the heaviest expected this afternoon into evening. * Excessive rainfall, especially with any thunderstorms, could lead to localized flash flooding at some of the faster responding streams and rivers in the region. Localized urban flooding is also possible. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flash Flood Watch means that conditions may develop that lead to flash flooding. Flash flooding is a very dangerous situation. You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$
426 WGUS61 KBOX 241436 FFABOX Flood Watch National Weather Service Taunton MA 1036 AM EDT Tue Oct 24 2017 CTZ002-MAZ002-003-008>011-242245- /O.CON.KBOX.FF.A.0008.171024T2200Z-171025T1400Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Hartford CT-Western Franklin MA-Eastern Franklin MA- Western Hampshire MA-Western Hampden MA-Eastern Hampshire MA- Eastern Hampden MA- Including the cities of Hartford, Windsor Locks, Charlemont, Greenfield, Orange, Chesterfield, Blandford, Amherst, Northampton, and Springfield 1036 AM EDT Tue Oct 24 2017 ...FLASH FLOOD WATCH REMAINS IN EFFECT FROM 6 PM EDT THIS EVENING THROUGH WEDNESDAY MORNING... The Flash Flood Watch continues for * Franklin, Hampshire and Hampden counties in western Massachusetts, as well as Hartford county in northern Connecticut. * From this evening through Wednesday morning. * Moderate to heavy rain will impact western Massachusetts and western Connecticut through tonight with the heaviest expected this afternoon into evening. * Excessive rainfall, especially with any thunderstorms, could lead to localized flash flooding at some of the faster responding streams and rivers in the region. Localized urban flooding is also possible. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flash Flood Watch means that conditions may develop that lead to flash flooding. Flash flooding is a very dangerous situation. You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$
217 WGUS61 KBOX 241605 FFABOX URGENT - IMMEDIATE BROADCAST REQUESTED Flood Watch National Weather Service Taunton MA 1205 PM EDT Tue Oct 24 2017 CTZ003-004-MAZ004-012-250015- /O.EXA.KBOX.FF.A.0008.171024T2200Z-171025T1400Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Tolland CT-Windham CT-Northern Worcester MA-Southern Worcester MA- Including the cities of Union, Vernon, Putnam, Willimantic, Barre, Fitchburg, Milford, and Worcester 1205 PM EDT Tue Oct 24 2017 ...FLASH FLOOD WATCH IN EFFECT FROM 6 PM EDT THIS EVENING THROUGH WEDNESDAY MORNING... The National Weather Service in Taunton has expanded the * Worcester county in central Massachusetts as well as Tolland and Windham counties in northern Connecticut. * From this evening through Wednesday morning. * Moderate to heavy rain will impact central Massachusetts into northeastern Connecticut through tonight, with the heaviest from this evening through early Wednesday morning. * Excessive rainfall, especially with any thunderstorms, could lead to localized flash flooding at some of the faster responding streams and rivers in the region. Localized urban flooding is also possible. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flash Flood Watch means that conditions may develop that lead to flash flooding. Flash flooding is a very dangerous situation. You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$ CTZ002-MAZ002-003-008>011-250015- /O.CON.KBOX.FF.A.0008.171024T2200Z-171025T1400Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Hartford CT-Western Franklin MA-Eastern Franklin MA- Western Hampshire MA-Western Hampden MA-Eastern Hampshire MA- Eastern Hampden MA- Including the cities of Hartford, Windsor Locks, Charlemont, Greenfield, Orange, Chesterfield, Blandford, Amherst, Northampton, and Springfield 1205 PM EDT Tue Oct 24 2017 ...FLASH FLOOD WATCH REMAINS IN EFFECT FROM 6 PM EDT THIS EVENING THROUGH WEDNESDAY MORNING... The Flash Flood Watch continues for * Franklin, Hampshire and Hampden counties in western Massachusetts, as well as Hartford county in north central Connecticut. * From this evening through Wednesday morning. * Moderate to heavy rain will impact western Massachusetts and western Connecticut through tonight with the heaviest expected this evening into early Wednesday morning. * Excessive rainfall, especially with any thunderstorms, could lead to localized flash flooding at some of the faster responding streams and rivers in the region. Localized urban flooding is also possible. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flash Flood Watch means that conditions may develop that lead to flash flooding. Flash flooding is a very dangerous situation. You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$
657 WGUS61 KBOX 241953 FFABOX URGENT - IMMEDIATE BROADCAST REQUESTED Flood Watch National Weather Service Taunton MA 353 PM EDT Tue Oct 24 2017 MAZ005>007-013>024-026-RIZ001>008-250400- /O.EXB.KBOX.FF.A.0008.171025T0600Z-171025T2200Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Central Middlesex MA-Western Essex MA-Eastern Essex MA- Western Norfolk MA-Southeast Middlesex MA-Suffolk MA- Eastern Norfolk MA-Northern Bristol MA-Western Plymouth MA- Eastern Plymouth MA-Southern Bristol MA-Southern Plymouth MA- Barnstable MA-Dukes MA-Nantucket MA-Northern Middlesex MA- Northwest Providence RI-Southeast Providence RI-Western Kent RI- Eastern Kent RI-Bristol RI-Washington RI-Newport RI- Block Island RI- Including the cities of Framingham, Lowell, Lawrence, Gloucester, Foxborough, Norwood, Cambridge, Boston, Quincy, Taunton, Brockton, Plymouth, Fall River, New Bedford, Mattapoisett, Chatham, Falmouth, Provincetown, Vineyard Haven, Nantucket, Ayer, Foster, Smithfield, Providence, Coventry, West Greenwich, East Greenwich, Warwick, West Warwick, Bristol, Narragansett, Westerly, Newport, and New Shoreham 353 PM EDT Tue Oct 24 2017 ...FLASH FLOOD WATCH IN EFFECT FROM 2 AM EDT WEDNESDAY THROUGH WEDNESDAY AFTERNOON... The National Weather Service in Taunton has expanded the * Flash Flood Watch to include eastern Massachusetts and all of Rhode Island, including Barnstable, Bristol, Dukes, Essex, Middlesex, Nantucket, Norfolk, Plymouth, and Suffolk counties in Massachusetts as well as Block Island, Bristol, Kent, Newport, Providence, and Washington counties in Rhode Island. * From early Wednesday through Wednesday afternoon. * Moderate to heavy rain will impact eastern Massachusetts and Rhode Island beginning early Wednesday morning, with the heaviest rainfall expected from early Wednesday morning through Wednesday afternoon. * Excessive rainfall, especially with any thunderstorms, could lead to localized flash flooding at some of the faster responding streams and rivers in the region. Localized urban flooding is also possible. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flash Flood Watch means that conditions may develop that lead to flash flooding. Flash flooding is a very dangerous situation. You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$ CTZ002>004-MAZ002>004-008>012-250400- /O.CON.KBOX.FF.A.0008.171024T2200Z-171025T1400Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Hartford CT-Tolland CT-Windham CT-Western Franklin MA- Eastern Franklin MA-Northern Worcester MA-Western Hampshire MA- Western Hampden MA-Eastern Hampshire MA-Eastern Hampden MA- Southern Worcester MA- Including the cities of Hartford, Windsor Locks, Union, Vernon, Putnam, Willimantic, Charlemont, Greenfield, Orange, Barre, Fitchburg, Chesterfield, Blandford, Amherst, Northampton, Springfield, Milford, and Worcester 353 PM EDT Tue Oct 24 2017 ...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH WEDNESDAY MORNING... The Flash Flood Watch continues for * Franklin, Hampden, Hampshire and Worcester counties in Massachusetts as well as Hartford, Tolland and Windham counties in northern Connecticut. * Through Wednesday morning. * Moderate to heavy rain will impact western and central Massachusetts and most of northern Connecticut, with the heaviest expected this evening into early Wednesday morning. * Excessive rainfall, especially with any thunderstorms, could lead to localized flash flooding at some of the faster responding streams and rivers in the region. Localized urban flooding is also possible. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flash Flood Watch means that conditions may develop that lead to flash flooding. Flash flooding is a very dangerous situation. You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$
257 WGUS61 KBOX 250232 FFABOX Flood Watch National Weather Service Taunton MA 1032 PM EDT Tue Oct 24 2017 ...Potentially Dangerous and Life Threatening Flash Flood Event... .A solid south to north line of widespread rain with embedded heavier showers and thunderstorms will slowly sweep east across Southern New England overnight. Already reports of 1 to 3 inches within roughly an hour has resulted in flash flood warnings across the Connecticut River Valley. Expecting this threat to move into the Boston to Providence corridor towards Wednesday morning. Given such excessive rainfall in urban corridors in a short period of time, this is a potentially dangerous and life threatening situation. MAZ005>007-013>024-026-RIZ001>008-251045- /O.CON.KBOX.FF.A.0008.171025T0600Z-171025T2200Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Central Middlesex MA-Western Essex MA-Eastern Essex MA- Western Norfolk MA-Southeast Middlesex MA-Suffolk MA- Eastern Norfolk MA-Northern Bristol MA-Western Plymouth MA- Eastern Plymouth MA-Southern Bristol MA-Southern Plymouth MA- Barnstable MA-Dukes MA-Nantucket MA-Northern Middlesex MA- Northwest Providence RI-Southeast Providence RI-Western Kent RI- Eastern Kent RI-Bristol RI-Washington RI-Newport RI- Block Island RI- Including the cities of Framingham, Lowell, Lawrence, Gloucester, Foxborough, Norwood, Cambridge, Boston, Quincy, Taunton, Brockton, Plymouth, Fall River, New Bedford, Mattapoisett, Chatham, Falmouth, Provincetown, Vineyard Haven, Nantucket, Ayer, Foster, Smithfield, Providence, Coventry, West Greenwich, East Greenwich, Warwick, West Warwick, Bristol, Narragansett, Westerly, Newport, and New Shoreham 1032 PM EDT Tue Oct 24 2017 ...FLASH FLOOD WATCH FROM 2 AM EDT WEDNESDAY THROUGH WEDNESDAY AFTERNOON... The Flash Flood Watch continues for * Eastern and Southeastern Massachusetts as well as all of Rhode Island * From 2 am Wednesday through Wednesday afternoon. * Moderate to heavy rain will impact the region beginning early Wednesday morning continuing through Wednesday afternoon. * Excessive rainfall, especially with any thunderstorms, could lead to flash flooding at some of the faster responding streams and rivers in the region as well as in urban centers. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flash Flood Watch means that conditions may develop that lead to flash flooding. Flash flooding is a very dangerous situation. You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$ CTZ002>004-MAZ002>004-008>012-251045- /O.CON.KBOX.FF.A.0008.000000T0000Z-171025T1400Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Hartford CT-Tolland CT-Windham CT-Western Franklin MA- Eastern Franklin MA-Northern Worcester MA-Western Hampshire MA- Western Hampden MA-Eastern Hampshire MA-Eastern Hampden MA- Southern Worcester MA- Including the cities of Hartford, Windsor Locks, Union, Vernon, Putnam, Willimantic, Charlemont, Greenfield, Orange, Barre, Fitchburg, Chesterfield, Blandford, Amherst, Northampton, Springfield, Milford, and Worcester 1032 PM EDT Tue Oct 24 2017 ...FLASH FLOOD WATCH UNTIL 10 AM EDT WEDNESDAY... The Flash Flood Watch continues for * Western and Central Massachusetts as well as Northern Connecticut * Until 10 am Wednesday. * Moderate to heavy rain is presently ongoing and will continue through early Wednesday morning. * Rainfall rates of 1 to 3 inches in an hour have been observed and flash flood warnings are currently in effect for the Connecticut River Valley. * Additional rainfall will contribute to flash flooding at some of the faster responding streams and rivers in the region as well as in urban centers. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flash Flood Watch means that conditions may develop that lead to flash flooding. Flash flooding is a very dangerous situation. You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$ Sipprell
274 WGUS61 KBOX 250738 FFABOX URGENT - IMMEDIATE BROADCAST REQUESTED Flood Watch National Weather Service Taunton MA 338 AM EDT Wed Oct 25 2017 ...Threat of Flash Flooding Continues... .Widespread rain with embedded heavier showers and thunderstorms continues to slowly sweep east producing rainfall rates of around an inch per hour, upwards of 2 inches per hour, over thickly settled urban areas. Smaller streams and tributaries slightly slower to respond, the FLASH FLOOD WATCH continues for all of Southern New England except areas west of the Berkshires despite the heavier rain having moved east. CTZ004-MAZ004>007-012>016-026-RIZ001>004-006-008-251545- /O.EXT.KBOX.FF.A.0008.000000T0000Z-171025T1600Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Windham CT-Northern Worcester MA-Central Middlesex MA- Western Essex MA-Eastern Essex MA-Southern Worcester MA- Western Norfolk MA-Southeast Middlesex MA-Suffolk MA- Eastern Norfolk MA-Northern Middlesex MA-Northwest Providence RI- Southeast Providence RI-Western Kent RI-Eastern Kent RI- Washington RI-Block Island RI- Including the cities of Putnam, Willimantic, Barre, Fitchburg, Framingham, Lowell, Lawrence, Gloucester, Milford, Worcester, Foxborough, Norwood, Cambridge, Boston, Quincy, Ayer, Foster, Smithfield, Providence, Coventry, West Greenwich, East Greenwich, Warwick, West Warwick, Narragansett, Westerly, and New Shoreham 338 AM EDT Wed Oct 25 2017 ...FLASH FLOOD WATCH UNTIL NOON EDT TODAY... The Flash Flood Watch is in effect for * Windham County in Connecticut. Essex, Middlesex, Norfolk, Suffolk, and Worcester Counties in Massachusetts. Block Island, Kent, Providence, and Washington Counties in Rhode Island * Until noon today. * Moderate to heavy rain is presently ongoing producing rainfall rates of 1 up to 2 inches per hour. Anticipate impacts through the morning commute continuing through early afternoon. * Excessive rainfall, especially with any thunderstorms, could lead to flash flooding at some of the faster responding streams and rivers in the region as well as in urban centers. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flash Flood Watch means that conditions may develop that lead to flash flooding. Flash flooding is a very dangerous situation. You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$ MAZ017>021-RIZ005-007-251545- /O.EXT.KBOX.FF.A.0008.000000T0000Z-171025T2000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Northern Bristol MA-Western Plymouth MA-Eastern Plymouth MA- Southern Bristol MA-Southern Plymouth MA-Bristol RI-Newport RI- Including the cities of Taunton, Brockton, Plymouth, Fall River, New Bedford, Mattapoisett, Bristol, and Newport 338 AM EDT Wed Oct 25 2017 ...FLASH FLOOD WATCH THROUGH THIS AFTERNOON... The Flash Flood Watch is in effect for * Bristol and Plymouth Counties in Massachusetts. Bristol and Newport Counties in Rhode Island * Through this afternoon. * Moderate to heavy rain is presently ongoing producing rainfall rates of 1 up to 2 inches per hour. Anticipate impacts through the morning commute continuing through early afternoon. * Excessive rainfall, especially with any thunderstorms, could lead to flash flooding at some of the faster responding streams and rivers in the region as well as in urban centers. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flash Flood Watch means that conditions may develop that lead to flash flooding. Flash flooding is a very dangerous situation. You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$ CTZ002-003-MAZ002-003-008>011-251000- /O.EXT.KBOX.FF.A.0008.000000T0000Z-171025T1000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Hartford CT-Tolland CT-Western Franklin MA-Eastern Franklin MA- Western Hampshire MA-Western Hampden MA-Eastern Hampshire MA- Eastern Hampden MA- Including the cities of Hartford, Windsor Locks, Union, Vernon, Charlemont, Greenfield, Orange, Chesterfield, Blandford, Amherst, Northampton, and Springfield 338 AM EDT Wed Oct 25 2017 ...FLASH FLOOD WATCH UNTIL 6 AM EDT EARLY THIS MORNING... The Flash Flood Watch is in effect for * Hartford and Tolland Counties in Connecticut. Franklin, Hampden, and Hampshire Counties in Massachusetts * Until 6 AM EDT early this morning. * While heavy rain has concluded across the region, light to moderate rain continues for the next couple of hours. The region inundated with 1 to 3 inches overnight, smaller streams and tributaries have been slower to respond and are now rising to flood stage at this time. Subsequently the flash flood watch continues. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flash Flood Watch means that conditions may develop that lead to flash flooding. Flash flooding is a very dangerous situation. You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$ MAZ022>024-251545- /O.EXT.KBOX.FF.A.0008.000000T0000Z-171026T0000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Barnstable MA-Dukes MA-Nantucket MA- Including the cities of Chatham, Falmouth, Provincetown, Vineyard Haven, and Nantucket 338 AM EDT Wed Oct 25 2017 ...FLASH FLOOD WATCH THROUGH THIS EVENING... The Flash Flood Watch is in effect for * Barnstable, Dukes, and Nantucket Counties in Massachusetts * Through this evening. * Moderate to heavy rain will impact the region into this afternoon and into the evening hours. * Excessive rainfall, especially with any thunderstorms, could lead to flash flooding at some of the faster responding streams and rivers in the region as well as in urban centers. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flash Flood Watch means that conditions may develop that lead to flash flooding. Flash flooding is a very dangerous situation. You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$
806 WGUS61 KBOX 250826 FFABOX Flood Watch National Weather Service Taunton MA 426 AM EDT Wed Oct 25 2017 ...Threat of Flash Flooding Continues... .Widespread rain with embedded heavier showers and thunderstorms continues to slowly sweep east producing rainfall rates of around an inch per hour, upwards of 2 inches per hour, over thickly settled urban areas. Smaller streams and tributaries slightly slower to respond, the FLASH FLOOD WATCH continues for all of Southern New England except areas west of the Berkshires despite the heavier rain having moved east. CTZ002-003-MAZ002-003-008>011-250930- /O.CAN.KBOX.FF.A.0008.000000T0000Z-171025T1000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Hartford CT-Tolland CT-Western Franklin MA-Eastern Franklin MA- Western Hampshire MA-Western Hampden MA-Eastern Hampshire MA- Eastern Hampden MA- Including the cities of Hartford, Windsor Locks, Union, Vernon, Charlemont, Greenfield, Orange, Chesterfield, Blandford, Amherst, Northampton, and Springfield 426 AM EDT Wed Oct 25 2017 ...FLASH FLOOD WATCH IS CANCELLED... The Flash Flood Watch for portions of northern Connecticut and western Massachusetts has been cancelled. Small streams and tributaries have mostly crested and are expected to remain below flood stage. $$ CTZ004-MAZ004-012-026-250930- /O.CAN.KBOX.FF.A.0008.000000T0000Z-171025T1600Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Windham CT-Northern Worcester MA-Southern Worcester MA- Northern Middlesex MA- Including the cities of Putnam, Willimantic, Barre, Fitchburg, Milford, Worcester, and Ayer 426 AM EDT Wed Oct 25 2017 ...FLASH FLOOD WATCH IS CANCELLED... The Flash Flood Watch for portions of northern Connecticut and Massachusetts has been cancelled. Small streams and tributaries have mostly crested and are expected to remain below flood stage. $$ MAZ005>007-013>016-RIZ001>004-006-008-251600- /O.CON.KBOX.FF.A.0008.000000T0000Z-171025T1600Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Central Middlesex MA-Western Essex MA-Eastern Essex MA- Western Norfolk MA-Southeast Middlesex MA-Suffolk MA- Eastern Norfolk MA-Northwest Providence RI- Southeast Providence RI-Western Kent RI-Eastern Kent RI- Washington RI-Block Island RI- Including the cities of Framingham, Lowell, Lawrence, Gloucester, Foxborough, Norwood, Cambridge, Boston, Quincy, Foster, Smithfield, Providence, Coventry, West Greenwich, East Greenwich, Warwick, West Warwick, Narragansett, Westerly, and New Shoreham 426 AM EDT Wed Oct 25 2017 ...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL NOON EDT TODAY... The Flash Flood Watch continues for * Central and Southeast Middlesex, Essex, Norfolk, and Suffolk Counties in Massachusetts. Block Island, Kent, Providence, and Washington Counties in Rhode Island * Until noon today. * Moderate to heavy rain is presently ongoing producing rainfall rates of 1 up to 2 inches per hour. Anticipate impacts through the morning commute continuing through the morning. * Excessive rainfall, especially with any thunderstorms, could lead to flash flooding at some of the faster responding streams and rivers in the region as well as in urban centers. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flash Flood Watch means that conditions may develop that lead to flash flooding. Flash flooding is a very dangerous situation. You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$ MAZ017>021-RIZ005-007-251630- /O.CON.KBOX.FF.A.0008.000000T0000Z-171025T2000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Northern Bristol MA-Western Plymouth MA-Eastern Plymouth MA- Southern Bristol MA-Southern Plymouth MA-Bristol RI-Newport RI- Including the cities of Taunton, Brockton, Plymouth, Fall River, New Bedford, Mattapoisett, Bristol, and Newport 426 AM EDT Wed Oct 25 2017 ...FLASH FLOOD WATCH UNTIL 4 PM EDT THIS AFTERNOON... The Flash Flood Watch continues for * Bristol and Plymouth Counties in Massachusetts. Bristol and Newport Counties in Rhode Island * Until 4 PM this afternoon. * Moderate to heavy rain is presently ongoing producing rainfall rates of 1 up to 2 inches per hour. Anticipate impacts through the morning commute continuing through early afternoon. * Excessive rainfall, especially with any thunderstorms, could lead to flash flooding at some of the faster responding streams and rivers in the region as well as in urban centers. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flash Flood Watch means that conditions may develop that lead to flash flooding. Flash flooding is a very dangerous situation. You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$ MAZ022>024-251630- /O.CON.KBOX.FF.A.0008.000000T0000Z-171026T0000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Barnstable MA-Dukes MA-Nantucket MA- Including the cities of Chatham, Falmouth, Provincetown, Vineyard Haven, and Nantucket 426 AM EDT Wed Oct 25 2017 ...FLASH FLOOD WATCH THROUGH THIS EVENING... The Flash Flood Watch continues for * Barnstable, Dukes, and Nantucket Counties in Massachusetts * Through this evening. * Moderate to heavy rain will impact the region this morning and continue into the evening hours. * Excessive rainfall, especially with any thunderstorms, could lead to flash flooding at some of the faster responding streams and rivers in the region as well as in urban centers. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flash Flood Watch means that conditions may develop that lead to flash flooding. Flash flooding is a very dangerous situation. You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$
226 WGUS61 KBOX 250831 FFABOX Flood Watch National Weather Service Taunton MA 431 AM EDT Wed Oct 25 2017 MAZ005>007-013>016-RIZ001>004-006-008-251600- /O.CON.KBOX.FF.A.0008.000000T0000Z-171025T1600Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Central Middlesex MA-Western Essex MA-Eastern Essex MA- Western Norfolk MA-Southeast Middlesex MA-Suffolk MA- Eastern Norfolk MA-Northwest Providence RI- Southeast Providence RI-Western Kent RI-Eastern Kent RI- Washington RI-Block Island RI- Including the cities of Framingham, Lowell, Lawrence, Gloucester, Foxborough, Norwood, Cambridge, Boston, Quincy, Foster, Smithfield, Providence, Coventry, West Greenwich, East Greenwich, Warwick, West Warwick, Narragansett, Westerly, and New Shoreham 431 AM EDT Wed Oct 25 2017 ...FLASH FLOOD WATCH UNTIL NOON EDT TODAY... The Flash Flood Watch continues for * Central and Southeast Middlesex, Essex, Norfolk, and Suffolk Counties in Massachusetts. Block Island, Kent, Providence, and Washington Counties in Rhode Island * Until noon today. * Moderate to heavy rain is presently ongoing producing rainfall rates of 1 up to 2 inches per hour. Anticipate impacts through the morning commute. * Excessive rainfall, especially with any thunderstorms, could lead to flash flooding at some of the faster responding streams and rivers in the region as well as in urban centers. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flash Flood Watch means that conditions may develop that lead to flash flooding. Flash flooding is a very dangerous situation. You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$ MAZ017>021-RIZ005-007-251645- /O.CON.KBOX.FF.A.0008.000000T0000Z-171025T2000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Northern Bristol MA-Western Plymouth MA-Eastern Plymouth MA- Southern Bristol MA-Southern Plymouth MA-Bristol RI-Newport RI- Including the cities of Taunton, Brockton, Plymouth, Fall River, New Bedford, Mattapoisett, Bristol, and Newport 431 AM EDT Wed Oct 25 2017 ...FLASH FLOOD WATCH UNTIL 4 PM EDT THIS AFTERNOON... The Flash Flood Watch continues for * Bristol and Plymouth Counties in Massachusetts. Bristol and Newport Counties in Rhode Island * Until 4 PM EDT this afternoon. * Moderate to heavy rain is presently ongoing producing rainfall rates of 1 up to 2 inches per hour. Anticipate impacts through the morning commute continuing through early afternoon. * Excessive rainfall, especially with any thunderstorms, could lead to flash flooding at some of the faster responding streams and rivers in the region as well as in urban centers. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flash Flood Watch means that conditions may develop that lead to flash flooding. Flash flooding is a very dangerous situation. You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$ MAZ022>024-251645- /O.CON.KBOX.FF.A.0008.000000T0000Z-171026T0000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Barnstable MA-Dukes MA-Nantucket MA- Including the cities of Chatham, Falmouth, Provincetown, Vineyard Haven, and Nantucket 431 AM EDT Wed Oct 25 2017 ...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH THIS EVENING... The Flash Flood Watch continues for * Barnstable, Dukes, and Nantucket Counties in Massachusetts * Through this evening. * Moderate to heavy rain will impact the region this morning and continue into the evening hours. * Excessive rainfall, especially with any thunderstorms, could lead to flash flooding at some of the faster responding streams and rivers in the region as well as in urban centers. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flash Flood Watch means that conditions may develop that lead to flash flooding. Flash flooding is a very dangerous situation. You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$
584 WGUS61 KBOX 251549 FFABOX Flood Watch National Weather Service Taunton MA 1149 AM EDT Wed Oct 25 2017 MAZ005>007-013>016-RIZ001>004-006-008-251700- /O.EXP.KBOX.FF.A.0008.000000T0000Z-171025T1600Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Central Middlesex MA-Western Essex MA-Eastern Essex MA- Western Norfolk MA-Southeast Middlesex MA-Suffolk MA- Eastern Norfolk MA-Northwest Providence RI- Southeast Providence RI-Western Kent RI-Eastern Kent RI- Washington RI-Block Island RI- Including the cities of Framingham, Lowell, Lawrence, Gloucester, Foxborough, Norwood, Cambridge, Boston, Quincy, Foster, Smithfield, Providence, Coventry, West Greenwich, East Greenwich, Warwick, West Warwick, Narragansett, Westerly, and New Shoreham 1149 AM EDT Wed Oct 25 2017 ...FLASH FLOOD WATCH WILL EXPIRE AT NOON EDT TODAY... Periods of light to moderate rain will cross through the area during this afternoon and tonight. However the heavier rainfall has shifted to the east. The Flash Flood Watch that has been in effect for Boston, northeast and Metro West Massachusetts, and much of Rhode Island will expire at noon EDT today. $$ MAZ017>021-RIZ005-007-252000- /O.CON.KBOX.FF.A.0008.000000T0000Z-171025T2000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Northern Bristol MA-Western Plymouth MA-Eastern Plymouth MA- Southern Bristol MA-Southern Plymouth MA-Bristol RI-Newport RI- Including the cities of Taunton, Brockton, Plymouth, Fall River, New Bedford, Mattapoisett, Bristol, and Newport 1149 AM EDT Wed Oct 25 2017 ...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL 4 PM EDT THIS AFTERNOON... The Flash Flood Watch continues for * Portions of southeastern Massachusetts and Rhode Island, including the following areas, in southeastern Massachusetts, Bristol and Plymouth. In Rhode Island, Bristol and Newport. * Until 4 PM EDT this afternoon * Periods of rain will continue this afternoon. The potential exists for rainfall rates of 1 to 2 inches per hour. * Excessive rainfall could lead to flash flooding at some of the faster responding streams and rivers in the region as well as in urban centers. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flash Flood Watch means that conditions may develop that lead to flash flooding. Flash flooding is a very dangerous situation. You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$ MAZ022>024-260000- /O.CON.KBOX.FF.A.0008.000000T0000Z-171026T0000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Barnstable MA-Dukes MA-Nantucket MA- Including the cities of Chatham, Falmouth, Provincetown, Vineyard Haven, and Nantucket 1149 AM EDT Wed Oct 25 2017 ...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING... The Flash Flood Watch continues for * A portion of southeastern Massachusetts, including the following areas, Barnstable, Dukes, and Nantucket. * Until 8 PM EDT this evening * Periods of rain, moderate to heavy at times, will impact the region this afternoon and continue into the evening hours. * Excessive rainfall, especially with any thunderstorms, could lead to flash flooding in urban centers and other poor drainage areas. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flash Flood Watch means that conditions may develop that lead to flash flooding. Flash flooding is a very dangerous situation. You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$ NMB
799 WGUS61 KBOX 252003 FFABOX Flood Watch National Weather Service Taunton MA 403 PM EDT Wed Oct 25 2017 MAZ017>021-RIZ005-007-252115- /O.EXP.KBOX.FF.A.0008.000000T0000Z-171025T2000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Northern Bristol MA-Western Plymouth MA-Eastern Plymouth MA- Southern Bristol MA-Southern Plymouth MA-Bristol RI-Newport RI- Including the cities of Taunton, Brockton, Plymouth, Fall River, New Bedford, Mattapoisett, Bristol, and Newport 403 PM EDT Wed Oct 25 2017 ...FLASH FLOOD WATCH HAS EXPIRED... The Flash Flood Watch for portions of southeastern Massachusetts and Rhode Island has expired. Showers will linger across Rhode Island and southeast Massachusetts, but heavy rainfall that could produce flooding has ended. $$ MAZ022>024-260000- /O.CON.KBOX.FF.A.0008.000000T0000Z-171026T0000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Barnstable MA-Dukes MA-Nantucket MA- Including the cities of Chatham, Falmouth, Provincetown, Vineyard Haven, and Nantucket 403 PM EDT Wed Oct 25 2017 ...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING... The Flash Flood Watch continues for * A portion of southeastern Massachusetts, including the following areas, Barnstable, Dukes, and Nantucket. * Until 8 PM EDT this evening. * Periods of rain, moderate to heavy at times, will impact the region this afternoon and continue into the evening hours. * Excessive rainfall, especially with any thunderstorms, could lead to flash flooding in urban centers and other poor drainage areas. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flash Flood Watch means that conditions may develop that lead to flash flooding. Flash flooding is a very dangerous situation. You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$
What forecasters said that day
The local office's own words before this flash flood watch went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Boston/Norton, MA wrote its last area forecast discussion before this flash flood watch went out at Oct 23, 10:59 AM EDT, 5 hours 2 minutes earlier.
Area forecast discussion, Oct 23, 10:59 AM EDT, 5 hours 2 minutes before
Area Forecast Discussion
National Weather Service Taunton MA
1059 AM EDT Mon Oct 23 2017
.SYNOPSIS...
High pressure offshore will provide mild temperatures today but
also increasing humidity. A slow moving cold front will bring
rounds of heavy rain Tuesday into Wednesday with a period of
strong to damaging wind gusts possible. A few lingering showers
are possible Thursday, but the trend towards drier, less humid
and more seasonable temperatures are expected Thursday into
Friday. Above normal temperatures may return by this weekend.
&&
.NEAR TERM /UNTIL 6 PM THIS EVENING/...
1025 AM Update...
Patchy dense fog lingers across portions of the region,
though not as organized as it was earlier this morning so
allowed the Dense Fog Advisory to expire. Low clouds also linger
across most of the interior, though noting breaks in the clouds
across portions of the CT valley and across coastal SE RI and S
Mass including Cape Cod and the islands on the latest GOES-16
(prelim, non-operational) satellite imagery. Seems the light
wind field across eastern areas holding from the SE, which
appears to keep the low visibility going into early this
afternoon before briefly lifting through the remainder of the
day.
Still some question as to whether any scattered showers will
develop across portions of the CT valley later this afternoon.
Noting some differences in model solutions for later this
afternoon/evening as to whether there will be enough low level
lift and instability for any showers to develop there. Have kept
slight chance POPs mainly for the E slopes of the Berkshires
after 18Z or so, which might slip toward the
Springfield/Hartford areas later today.
As the winds slowly veer to S during the remainder of the day,
will see temps slowly rise even with the cloud cover. Have kept
max temps in the mid-upper 60s across the interior higher
terrain to the lower 70s elsewhere.
Have updated forecast to incorporate current trends through the
remainder of the day.
Previous Discussion...
As the visibility slowly improves, lower clouds will linger a
while longer. This will mean somewhat lower max temperatures,
but still well above normal for mid/late October.
Much of today should remain dry, but cannot completely dismiss
the possibility of a few showers reaching western MA and
portions of CT late today.
&&
.SHORT TERM /6 PM THIS EVENING THROUGH 6 PM TUESDAY/...
Precipitable water increases tonight into Tuesday. Widespread
showers arrive along a cold front late tonight into Tuesday,
especially from Worcester county west. Strong winds of 35-40 kt
jet just off the deck. Gusty winds will be more likely within
areas of heavier rainfall, especially Tuesday.
Low temperatures tonight should be close to our normal high
temperatures, with some increase in temperatures Tuesday from
the strong low level warm advection.
&&
.LONG TERM /TUESDAY NIGHT THROUGH SUNDAY/...
Highlights...
* Period of strong to damaging wind gusts possible Tue into Wed
* Heavy rain will result in an urban/street flooding threat
Tue-Wed along with low risk of isolated flash flood threat
* Less humid & more seasonable weather finally return Thu/Fri
Tue night and Wed...
Synoptic Overview...
Slow moving cold front becomes parallel to upper flow as mid
level trough takes on negative tilt. This front will be
associated with an impressive warm conveyor belt up the eastern
seaboard containing subtropical moisture with PWATs near the
2.00 inch mark, or nearly 3 std deviations above normal. Also
embedded within this warm conveyor belt is very strong wind
anomalies with 925 mb wind speeds of 55-65 kts, +4 std
deviations above climo! This low level jet builds a low level
thermal anomaly with nearly moist adiabatic lapse rates above
this warm anomaly. This very strong low level jet also advects
surface dew pts into the mid and upper 60s across southern New
England late Tue into early Wed, generating MUcapes of 300-500
j/kg, very impressive for late Oct.
Wind risk...
As mentioned above low level jet peaks at about 55-65 kt late
Tue into early Wed. Heavier showers (via precip drag) and
especially potential low top fine line (very strong frontal
convergence coupled with marginal instability) across western
MA/CT will increase the risk for stronger winds aloft mixing to
the surface. Given leaves remain on most trees, this will
exacerbate the risk for downed limbs or even some trees with
localized power outages. Wind headlines will likely be needed as
we draw closer to the event.
Heavy rain...
Subtropical moisture streams up the eastern seaboard with PWATs
nearing 2 inches, +4 std deviations from climo for about 24-30
hrs! This duration coupled with strong frontal forcing and
marginal instability should be sufficient for periods of heavy
showers with isolated thunder possible. Much of the global
guidance offering a widespread 1-2" rainfall amounts with
localized 3-5" possible especially eastern NY into western MA/CT
given greater risk of low top fine line.
Thu...
Global guidance including ensembles suggest dry slot moves
across the area, thus a drying trend develops. However cold pool
aloft combined with cyclonic low may result in isolated diurnal
showers especially across the high terrain. Otherwise mainly
dry weather is expected. Turning less humid but only seasonably
cool.
Fri through the weekend...
Looks like a period of short wave ridging between departing
trough and next trough upstream arriving here Sunday or early
next week. Ensembles suggest post frontal airmass Fri will be
close to seasonably normal and continuing into Sat along with
mainly dry weather. Ensembles also advertising long wave eastern
seaboard trough reloads with new jet energy around Sunday with
subtropical connection given high amplitude trough.
&&
.AVIATION /15Z MONDAY THROUGH FRIDAY/...
Forecaster Confidence Levels...
Low - less than 30 percent.
Moderate - 30 to 60 percent.
High - greater than 60 percent.
Short Term /through Tuesday/....
Through this afternoon...Moderate confidence mainly in timing of
any showers developing over western areas during the afternoon.
Some lingering MVFR-IFR conditions across portions of the region
but should become mainly VFR by around 18Z or so. However, MVFR
CIGS may return across western MA/N central CT during the late
afternoon. May see isolated showers move into western areas
after 18Z-20Z. S winds increase to around 10 kt.
Tonight...Moderate confidence. Conditions lower to MVFR-IFR
across N central and western areas this evening in scattered
showers and patchy fog. VFR conditions to start across S central
and eastern areas, but CIGS lower to MVFR to local IFR after
midnight as showers slowly move E. Patchy fog will lower VSBYS
to MVFR to local IFR as well. S winds gusting to 20-25 kt along
S coastal areas after midnight.
Tuesday...High confidence in trends. Moderate confidence in
timing. Mainly IFR with occasional MVFR in low CIGS rain/fog. Some
occasional TS also possible with heavy RA at times. Winds gust
20-30 kt most of the region out of the S-SE with a few gusts
30-40 kt mainly SE MA/Cape/Islands. Cannot rule out stronger
gusts everywhere in heavier rainfall/thunderstorms. Areas of
LLWS likely, especially after 15Z.
KBOS Terminal...Moderate confidence in TAF due to timing issues
with CIG improvement later this morning. Possible IFR could
linger longer than current forecast.
KBDL Terminal...Moderate confidence in TAF. Mainly VFR. May see
brief MVFR-IFR VSBYS in patchy fog through 14Z or so but should
improve by morning push.
Outlook /Tuesday Night through Friday/...
Tuesday Night: Mainly MVFR, with local IFR possible. Windy with
gusts to 35 kt. SHRA, chance TSRA, patchy BR.
Wednesday: Mainly VFR, with local IFR possible. Windy with
gusts to 30 kt. SHRA, chance TSRA, patchy BR.
Wednesday Night: Mainly VFR, with areas MVFR possible. Breezy.
Chance SHRA.
Thursday: Mainly VFR, with areas MVFR possible. Chance SHRA.
Thursday Night through Friday:VFR.
&&
.MARINE...
Forecaster Confidence Levels...
Low - less than 30 percent.
Moderate - 30 to 60 percent.
High - greater than 60 percent.
Short Term /through Tuesday/...
Relatively light winds and seas continue across the waters into
this evening. Increasing south winds ahead of a cold front will
also mean building seas tonight into Tuesday, especially across
the southern coastal waters. Moderate risk for gale force gusts
Tuesday across most of the waters.
Lingering pockets of poor visibility linger off E coastal Mass,
but should improve during the early to mid afternoon.
Outlook /Tuesday Night through Friday/...
Tuesday Night: Low risk for gale force winds with gusts up to
35 kt. Rough seas up to 12 ft. Rain showers, chance of
thunderstorms, patchy fog. Local visibility 1 to 3 nm.
Wednesday: Low risk for Small Craft Advisory winds with gusts
up to 30 kt. Rough seas up to 13 ft. Rain showers, chance of
thunderstorms, patchy fog. Local visibility 1 nm or less.
Wednesday Night: Winds less than 25 kt. Rough seas up to 11 ft.
Rain showers.
Thursday: Winds less than 25 kt. Areas of rough seas. Chance of
rain showers.
Thursday Night: Winds less than 25 kt. Local rough seas. Slight
chance of rain showers.
Friday: Winds less than 25 kt. Areas of seas approaching 5 ft.
&&
.BOX WATCHES/WARNINGS/ADVISORIES...
CT...None.
MA...None.
RI...None.
MARINE...Gale Watch from Tuesday morning through Wednesday morning for
ANZ231>235-237-255-256.
Small Craft Advisory from 8 AM to 6 PM EDT Tuesday for ANZ230-
251.
Gale Watch from Tuesday afternoon through Tuesday evening for
ANZ236.
Gale Watch from Tuesday afternoon through Wednesday morning
for ANZ250-254.
&&
SYNOPSIS...Belk/Nocera
NEAR TERM...Nocera/EVT
SHORT TERM...Belk
LONG TERM...Nocera
AVIATION...Belk/Nocera/EVT
MARINE...Belk/Nocera/EVTHazardous weather outlook, Oct 23, 3:57 AM EDT, 12 hours 4 minutes before
Hazardous Weather Outlook National Weather Service Taunton MA 357 AM EDT Mon Oct 23 2017 CTZ002>004-MAZ002>012-014-015-026-RIZ008-240800- Hartford CT-Tolland CT-Windham CT-Western Franklin MA- Eastern Franklin MA-Northern Worcester MA-Central Middlesex MA- Western Essex MA-Eastern Essex MA-Western Hampshire MA- Western Hampden MA-Eastern Hampshire MA-Eastern Hampden MA- Southern Worcester MA-Southeast Middlesex MA-Suffolk MA- Northern Middlesex MA-Block Island RI- 357 AM EDT Mon Oct 23 2017 This Hazardous Weather Outlook is for northern Connecticut, central Massachusetts, eastern Massachusetts, northeastern Massachusetts, western Massachusetts and southern Rhode Island. .DAY ONE...Today and Tonight. Hazardous weather is not expected at this time. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. A period of southerly wind gusts of 35 to 45 mph are possible Tuesday afternoon into Wednesday morning with a low risk for a few gusts up to 60 mph. The highest risk for these strong wind gusts will be across eastern MA and RI. Most trees are still close to fully leafed, so these wind gusts may bring an increased risk for some downed trees and isolated to scattered power outages. Periods of heavy rain will also bring the risk of some urban/street flooding Tuesday afternoon into Wednesday. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. MAZ013-016>024-RIZ001>007-240800- Western Norfolk MA-Eastern Norfolk MA-Northern Bristol MA- Western Plymouth MA-Eastern Plymouth MA-Southern Bristol MA- Southern Plymouth MA-Barnstable MA-Dukes MA-Nantucket MA- Northwest Providence RI-Southeast Providence RI-Western Kent RI- Eastern Kent RI-Bristol RI-Washington RI-Newport RI- 357 AM EDT Mon Oct 23 2017 ...DENSE FOG ADVISORY IN EFFECT UNTIL 10 AM EDT THIS MORNING... This Hazardous Weather Outlook is for eastern Massachusetts, southeastern Massachusetts, northern Rhode Island and southern Rhode Island. .DAY ONE...Today and Tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Dense Fog Advisory. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. A period of southerly wind gusts of 35 to 45 mph are possible Tuesday afternoon into Wednesday morning with a low risk for a few gusts up to 60 mph. The highest risk for these strong wind gusts will be across eastern MA and RI. Most trees are still close to fully leafed, so these wind gusts may bring an increased risk for some downed trees and isolated to scattered power outages. Periods of heavy rain will also bring the risk of some urban/street flooding Tuesday afternoon into Wednesday. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. ANZ231>235-237-255-256-240800- Cape Cod Bay-Nantucket Sound-Vineyard Sound-Buzzards Bay- Rhode Island Sound-Block Island Sound- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 357 AM EDT Mon Oct 23 2017 ...GALE WATCH IN EFFECT FROM TUESDAY MORNING THROUGH WEDNESDAY MORNING... This Hazardous Weather Outlook is for Massachusetts coastal waters and Rhode Island coastal waters. .DAY ONE...Today and Tonight. Hazardous weather is not expected at this time. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Gale Watch. Southerly gale force wind gusts possible Tuesday afternoon into Wednesday morning. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. ANZ250-254-240800- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- 357 AM EDT Mon Oct 23 2017 ...GALE WATCH IN EFFECT FROM TUESDAY AFTERNOON THROUGH WEDNESDAY MORNING... This Hazardous Weather Outlook is for Massachusetts coastal waters. .DAY ONE...Today and Tonight. Hazardous weather is not expected at this time. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Gale Watch. Southerly gale force wind gusts possible Tuesday afternoon into Wednesday morning. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. ANZ230-251-240800- Boston Harbor-Massachusetts Bay and Ipswich Bay- 357 AM EDT Mon Oct 23 2017 This Hazardous Weather Outlook is for Massachusetts coastal waters. .DAY ONE...Today and Tonight. Hazardous weather is not expected at this time. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Southerly gale force wind gusts Tuesday afternoon into Wednesday morning. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. ANZ236-240800- Narragansett Bay- 357 AM EDT Mon Oct 23 2017 ...GALE WATCH IN EFFECT FROM TUESDAY AFTERNOON THROUGH TUESDAY EVENING... This Hazardous Weather Outlook is for Rhode Island coastal waters. .DAY ONE...Today and Tonight. Hazardous weather is not expected at this time. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Gale Watch. Southerly gale force wind gusts Tuesday afternoon into Wednesday morning. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. For the latest updates...please visit our webpage at www.weather.gov/boston You can follow us on Facebook at www.facebook.com/NWSBoston You can follow us on Twitter at @NWSBoston
The office that day
Everything else NWS Boston/Norton, MA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 23, 3:23 AM EDT | Dense Fog Advisory | BOX | Barnstable, Bristol, Dukes, Hampden, Nantucket, Norfolk and 2 more | 7 hr |
| Oct 23, 4:19 AM EDT | Gale Watch | BOX | 12 hr | |
| Oct 23, 3:58 PM EDT | Gale Warning | BOX | 43 hr | |
| Oct 23, 4:04 PM EDT | Wind Advisory | BOX | Barnstable, Bristol, Dukes, Essex, Franklin, Hampden and 7 more | 40 hr |
Nearby
Flash Flood Watches in Massachusetts, 2017Flash Flood Watches in Rhode Island, 2017Flash Flood Watches in Connecticut, 2017Every flash flood watch 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.