Alert archive / Rhode Island / Flood Watches in 2021
Flood Watch 1, NWS Boston/Norton, MA
NWS Boston/Norton, MA issued this flood watch at Aug 21, 2021, 4:16 AM EDT for 4 counties in Massachusetts; Capitol Planning Region, Northeastern Connecticut Planning Region, Connecticut; 5 counties in Rhode Island. It took effect at Aug 21, 2021, 8:00 PM EDT. It was in force for 48 hr.
The area
The counties it named.
The facts
- Issued
- Aug 21, 2021, 4:16 AM EDT (08:16 UTC)
- In effect from
- Aug 21, 2021, 8:00 PM EDT
- Expired
- Aug 23, 2021, 8:00 PM EDT
- In force
- 48 hr
- Issued by
- NWS Boston/Norton, MA
- Flood severity
- None
Counties Capitol Planning Region, CT, Northeastern Connecticut Planning Region, CT, Franklin County, MA, Hampden County, MA, Hampshire 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), 69 km from the middle of the area, began a volume at 08:18 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
Brookhaven, NY (KOKX), launched 00:00Z, 8.3 hours before the alert went out and 140 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
- 244 J/kg
- Mixed-layer CIN
- -5 J/kg
- Mixed-layer LCL
- 695 m above ground
- 0-6 km bulk shear
- 18 kt
- 0-1 km storm-relative helicity
- 12 m²/s²
- 0-3 km storm-relative helicity
- 36 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
812 WGUS61 KBOX 210816 FFABOX URGENT - IMMEDIATE BROADCAST REQUESTED Flood Watch National Weather Service Boston/Norton MA 416 AM EDT Sat Aug 21 2021 CTZ002>004-MAZ002>004-008>012-RIZ001>008-212100- /O.NEW.KBOX.FA.A.0001.210822T0000Z-210823T1200Z/ /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-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 Union, West Warwick, Providence, Foster, Barre, Warwick, Orange, Windsor Locks, Smithfield, Springfield, Putnam, Milford, Charlemont, Vernon, Hartford, West Greenwich, Coventry, Willimantic, Newport, Bristol, Chesterfield, Fitchburg, New Shoreham, Blandford, Westerly, Greenfield, Narragansett, Northampton, Worcester, Amherst, and East Greenwich 416 AM EDT Sat Aug 21 2021 ...FLOOD WATCH IN EFFECT FROM THIS EVENING THROUGH MONDAY MORNING... The National Weather Service in Norton has issued a * Flood Watch for portions of northern Connecticut, Massachusetts and Rhode Island, including the following areas, in northern Connecticut, Hartford CT, Tolland CT and Windham CT. In Massachusetts, Eastern Franklin MA, Eastern Hampden MA, Eastern Hampshire MA, Northern Worcester MA, Southern Worcester MA, Western Franklin MA, Western Hampden MA and Western Hampshire MA. In Rhode Island, Block Island RI, Bristol RI, Eastern Kent RI, Newport RI, Northwest Providence RI, Southeast Providence RI, Washington RI and Western Kent RI. * From this evening through Monday morning. * Henri is expected to generate 3 to 6 inches of rain across the watch area. Locally higher amounts are possible. * Rapid rises could be seen on smaller waterways. Urban and poor-drainage flooding may also develop quickly. PRECAUTIONARY/PREPAREDNESS ACTIONS... You should monitor later forecasts and be alert for possible Flash Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop. && $$ Belk
6 follow-up statements
894 WGUS61 KBOX 212018 FFABOX Flood Watch National Weather Service Boston/Norton MA 418 PM EDT Sat Aug 21 2021 CTZ002>004-MAZ002>004-008>012-RIZ001>008-220900- /O.CON.KBOX.FA.A.0001.210822T0000Z-210823T1200Z/ /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-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 Union, West Warwick, Providence, Foster, Barre, Warwick, Orange, Windsor Locks, Smithfield, Springfield, Putnam, Milford, Charlemont, Vernon, Hartford, West Greenwich, Coventry, Willimantic, Newport, Bristol, Chesterfield, Fitchburg, New Shoreham, Blandford, Westerly, Greenfield, Narragansett, Northampton, Worcester, Amherst, and East Greenwich 418 PM EDT Sat Aug 21 2021 ...FLOOD WATCH REMAINS IN EFFECT FROM 8 PM EDT THIS EVENING THROUGH MONDAY MORNING... The Flood Watch continues for * Portions of northern Connecticut, Massachusetts and Rhode Island, including the following areas, in northern Connecticut, Hartford CT, Tolland CT and Windham CT. In Massachusetts, Eastern Franklin MA, Eastern Hampden MA, Eastern Hampshire MA, Northern Worcester MA, Southern Worcester MA, Western Franklin MA, Western Hampden MA and Western Hampshire MA. In Rhode Island, Block Island RI, Bristol RI, Eastern Kent RI, Newport RI, Northwest Providence RI, Southeast Providence RI, Washington RI and Western Kent RI. * From 8 PM EDT this evening through Monday morning. * Henri is expected to generate 3 to 6 inches of rain across the watch area. Locally higher amounts are possible. * Rapid rises could be seen on smaller waterways. Urban and poor-drainage flooding may also develop quickly. PRECAUTIONARY/PREPAREDNESS ACTIONS... You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop. && $$ WB
469 WGUS61 KBOX 220736 FFABOX URGENT - IMMEDIATE BROADCAST REQUESTED Flood Watch National Weather Service Boston/Norton MA 336 AM EDT Sun Aug 22 2021 CTZ002>004-MAZ002>004-008>012-RIZ001>008-222015- /O.EXT.KBOX.FA.A.0001.000000T0000Z-210824T0000Z/ /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-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 Union, West Warwick, Providence, Foster, Barre, Warwick, Orange, Windsor Locks, Smithfield, Springfield, Putnam, Milford, Charlemont, Vernon, Hartford, West Greenwich, Coventry, Willimantic, Newport, Bristol, Chesterfield, Fitchburg, New Shoreham, Blandford, Westerly, Greenfield, Narragansett, Northampton, Worcester, Amherst, and East Greenwich 336 AM EDT Sun Aug 22 2021 ...FLOOD WATCH NOW IN EFFECT THROUGH MONDAY EVENING... The Flood Watch is now in effect for * Portions of northern Connecticut, Massachusetts and Rhode Island, including the following areas, in northern Connecticut, Hartford CT, Tolland CT and Windham CT. In Massachusetts, Eastern Franklin MA, Eastern Hampden MA, Eastern Hampshire MA, Northern Worcester MA, Southern Worcester MA, Western Franklin MA, Western Hampden MA and Western Hampshire MA. In Rhode Island, Block Island RI, Bristol RI, Eastern Kent RI, Newport RI, Northwest Providence RI, Southeast Providence RI, Washington RI and Western Kent RI. * Through Monday evening. * Henri is expected to bring 3 to 6 inches of rain across the watch area. Locally higher amounts are possible, especially across western Connecticut and southwest Massachusetts. * Rapid rises are likely on smaller waterways. Significant urban and poor-drainage flooding may also develop quickly. PRECAUTIONARY/PREPAREDNESS ACTIONS... You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop. && $$ KC
485 WGUS61 KBOX 221951 FFABOX Flood Watch National Weather Service Boston/Norton MA 351 PM EDT Sun Aug 22 2021 CTZ002>004-MAZ002>004-008>012-RIZ001>008-231000- /O.CON.KBOX.FA.A.0001.000000T0000Z-210824T0000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Hartford CT-Tolland CT-Windham CT-Western Franklin MA-Eastern Franklin MA-Northern Worcester MA-Western Hampshire MA-Western Hampden MA-Eastern Hampshire MA-Eastern Hampden MA-Southern Worcester MA-Northwest Providence RI-Southeast Providence RI-Western Kent RI-Eastern Kent RI-Bristol RI-Washington RI-Newport RI-Block Island RI- Including the cities of Union, West Warwick, Providence, Foster, Barre, Warwick, Orange, Windsor Locks, Smithfield, Springfield, Putnam, Milford, Charlemont, Vernon, Hartford, West Greenwich, Coventry, Willimantic, Newport, Bristol, Chesterfield, Fitchburg, New Shoreham, Blandford, Westerly, Greenfield, Narragansett, Northampton, Worcester, Amherst, and East Greenwich 351 PM EDT Sun Aug 22 2021 ...FLOOD WATCH REMAINS IN EFFECT THROUGH MONDAY EVENING... The Flood Watch continues for * Portions of northern Connecticut, Massachusetts and Rhode Island, including the following areas, in northern Connecticut, Hartford CT, Tolland CT and Windham CT. In Massachusetts, Eastern Franklin MA, Eastern Hampden MA, Eastern Hampshire MA, Northern Worcester MA, Southern Worcester MA, Western Franklin MA, Western Hampden MA and Western Hampshire MA. In Rhode Island, Block Island RI, Bristol RI, Eastern Kent RI, Newport RI, Northwest Providence RI, Southeast Providence RI, Washington RI and Western Kent RI. * Through Monday evening. * Henri and renewed rainfall on Monday will bring a risk of flooding across Connecticut, Rhode Island, western and central Massachusetts. PRECAUTIONARY/PREPAREDNESS ACTIONS... You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop. && $$ BL
767 WGUS61 KBOX 230818 FFABOX Flood Watch National Weather Service Boston/Norton MA 418 AM EDT Mon Aug 23 2021 CTZ002>004-MAZ002>004-008>012-RIZ001>008-231630- /O.CON.KBOX.FA.A.0001.000000T0000Z-210824T0000Z/ /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-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 Union, West Warwick, Providence, Foster, Barre, Warwick, Orange, Windsor Locks, Smithfield, Springfield, Putnam, Milford, Charlemont, Vernon, Hartford, West Greenwich, Coventry, Willimantic, Newport, Bristol, Chesterfield, Fitchburg, New Shoreham, Blandford, Westerly, Greenfield, Narragansett, Northampton, Worcester, Amherst, and East Greenwich 418 AM EDT Mon Aug 23 2021 ...FLOOD WATCH REMAINS IN EFFECT THROUGH THIS EVENING... The Flood Watch continues for * Portions of northern Connecticut, Massachusetts and Rhode Island, including the following areas, in northern Connecticut, Hartford CT, Tolland CT and Windham CT. In Massachusetts, Eastern Franklin MA, Eastern Hampden MA, Eastern Hampshire MA, Northern Worcester MA, Southern Worcester MA, Western Franklin MA, Western Hampden MA and Western Hampshire MA. In Rhode Island, Block Island RI, Bristol RI, Eastern Kent RI, Newport RI, Northwest Providence RI, Southeast Providence RI, Washington RI and Western Kent RI. * Through this evening. * Renewed rainfall today will bring a risk of flooding across Connecticut, Rhode Island, as well as portions of western and central Massachusetts. PRECAUTIONARY/PREPAREDNESS ACTIONS... You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop. && $$ Belk
137 WGUS61 KBOX 231617 FFABOX Flood Watch National Weather Service Boston/Norton MA 1217 PM EDT Mon Aug 23 2021 CTZ002>004-MAZ002>004-008>012-RIZ001>008-240000- /O.CON.KBOX.FA.A.0001.000000T0000Z-210824T0000Z/ /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-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 Union, West Warwick, Providence, Foster, Barre, Warwick, Orange, Windsor Locks, Smithfield, Springfield, Putnam, Milford, Charlemont, Vernon, Hartford, West Greenwich, Coventry, Willimantic, Newport, Bristol, Chesterfield, Fitchburg, New Shoreham, Blandford, Westerly, Greenfield, Narragansett, Northampton, Worcester, Amherst, and East Greenwich 1217 PM EDT Mon Aug 23 2021 ...FLOOD WATCH REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING... The Flood Watch continues for * Portions of northern Connecticut, Massachusetts and Rhode Island, including the following areas, in northern Connecticut, Hartford CT, Tolland CT and Windham CT. In Massachusetts, Eastern Franklin MA, Eastern Hampden MA, Eastern Hampshire MA, Northern Worcester MA, Southern Worcester MA, Western Franklin MA, Western Hampden MA and Western Hampshire MA. In Rhode Island, Block Island RI, Bristol RI, Eastern Kent RI, Newport RI, Northwest Providence RI, Southeast Providence RI, Washington RI and Western Kent RI. * Until 8 PM EDT this evening. * Renewed rainfall today will bring a risk of flooding across Connecticut, Rhode Island, as well as portions of western and central Massachusetts. * Rapid rises are likely on smaller waterways. Significant urban and poor-drainage flooding may also develop quickly. PRECAUTIONARY/PREPAREDNESS ACTIONS... You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop. && $$ KS
316 WGUS61 KBOX 232334 FFABOX Flood Watch National Weather Service Boston/Norton MA 734 PM EDT Mon Aug 23 2021 CTZ002>004-MAZ002>004-008>012-RIZ001>008-240045- /O.EXP.KBOX.FA.A.0001.000000T0000Z-210824T0000Z/ /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-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 Union, West Warwick, Providence, Foster, Barre, Warwick, Orange, Windsor Locks, Smithfield, Springfield, Putnam, Milford, Charlemont, Vernon, Hartford, West Greenwich, Coventry, Willimantic, Newport, Bristol, Chesterfield, Fitchburg, New Shoreham, Blandford, Westerly, Greenfield, Narragansett, Northampton, Worcester, Amherst, and East Greenwich 734 PM EDT Mon Aug 23 2021 ...FLOOD WATCH WILL EXPIRE AT 8 PM EDT THIS EVENING... The Flood Watch for portions of northern Connecticut, Massachusetts and Rhode Island, including the following areas, in northern Connecticut, Hartford CT, Tolland CT and Windham CT. In Massachusetts, Eastern Franklin MA, Eastern Hampden MA, Eastern Hampshire MA, Northern Worcester MA, Southern Worcester MA, Western Franklin MA, Western Hampden MA and Western Hampshire MA. In Rhode Island, Block Island RI, Bristol RI, Eastern Kent RI, Newport RI, Northwest Providence RI, Southeast Providence RI, Washington RI and Western Kent RI will expire at 8 PM EDT this evening. Flooding is no longer expected to pose a threat. Please continue to heed remaining road closures. $$ AL
The office that day
Everything else NWS Boston/Norton, MA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 20, 11:09 PM EDT | Tropical Storm Warning | BOX | Barnstable, Bristol, Dukes, Nantucket, Norfolk, Plymouth and 1 more | 42 hr |
| Aug 21, 11:03 AM EDT | Hurricane Warning | BOX | Newport, Washington | 21 hr |
Nearby
Flood Watches in Rhode Island, 2021Flood Watches in Massachusetts, 2021Flood Watches in Connecticut, 2021Every flood watch in 2021
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.