Alert archive / Massachusetts / River Flood Warnings in 2021
River Flood Warning 4, NWS Boston/Norton, MA
NWS Boston/Norton, MA issued this river flood warning at Jul 9, 2021, 12:19 PM EDT for Middlesex County, Massachusetts. It took effect at Jul 9, 2021, 3:32 PM EDT. It was in force for 34 hr.
The area
The outline as issued.
The facts
- Issued
- Jul 9, 2021, 12:19 PM EDT (16:19 UTC)
- In effect from
- Jul 9, 2021, 3:32 PM EDT
- Expired
- Jul 11, 2021, 1:38 AM EDT
- In force
- 34 hr
- Issued by
- NWS Boston/Norton, MA
- Area
- Storm-based polygon
- Flood severity
- Minor
County Middlesex County, MA
The radar
The Boston radar (KBOX), 49 km from the middle of the area, began a volume at 16:19 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 river
Written for the forecast point Sudbury River at Saxonville (SAXM3). The gauge peaked at 10.60 ft at Jul 10, 2021, 1:00 AM EDT.
- Action stage
- 8.5 ft
- Minor stage
- 10 ft
- Moderate stage
- 12 ft
- Major stage
- 13 ft
This gauge today: stage, forecast and historic crests
Stage from the USGS instantaneous record for site 01098530, one reading an hour, from a day before the product to a day after it ended. Flood stages are today's.
The text
As transmitted.
369 WGUS41 KBOX 091619 FLWBOX BULLETIN - IMMEDIATE BROADCAST REQUESTED Flood Warning National Weather Service Boston/Norton MA 1219 PM EDT Fri Jul 9 2021 ...The National Weather Service in Boston/Norton MA has issued a Flood Warning for the following rivers in Massachusetts... Sudbury River At Saxonville affecting Middlesex County. Shawsheen River At Andover affecting Essex County. Neponset River At Norwood affecting Norfolk and Suffolk Counties. .Tropical Storm Elsa has brought significant rainfall to the region, resulting in sharp rises in some area rivers. Minor flooding is forecast for the Sudbury, Shawsheen and Neponset Rivers in Massachusetts. PRECAUTIONARY/PREPAREDNESS ACTIONS... Motorists should not attempt to drive around barricades or drive cars through flooded areas. Caution is urged when walking near riverbanks. Additional information is available at www.weather.gov. The next statement will be issued this evening by 10 pm EDT. && MAC021-025-100045- /O.NEW.KBOX.FL.W.0002.210709T1748Z-210710T0040Z/ /NRWM3.1.ER.210709T1748Z.210709T1800Z.210709T1840Z.NO/ 1219 PM EDT Fri Jul 9 2021 The National Weather Service in Norton has issued a * Flood Warning for the Neponset River At Norwood. * Until this evening. * At 11:15 AM EDT Friday the stage was 7.7 feet. * Flood stage is 9.0 feet. * Minor flooding is forecast. * Forecast...The river is expected to rise above flood stage this afternoon to a crest of 9.1 feet this afternoon. It will then fall below flood stage by early evening. * Impact...At 9.0 feet, Minor lowland flooding occurs along the Neponset River in Norwood. && LAT...LON 4212 7122 4214 7127 4228 7115 4224 7109 $$ MAC017-100430- /O.NEW.KBOX.FL.W.0004.210710T0600Z-210711T0000Z/ /SAXM3.1.ER.210710T0600Z.210710T0600Z.210710T1800Z.NO/ 1219 PM EDT Fri Jul 9 2021 The National Weather Service in Norton has issued a * Flood Warning for the Sudbury River At Saxonville. * From late tonight to tomorrow evening. * At 11:15 AM EDT Friday the stage was 8.8 feet. * Flood stage is 10.0 feet. * Minor flooding is forecast. * Forecast...The river is expected to rise to the 10.0 foot flood stage around midnight tonight. It will then hover near flood stage before falling below 10 feet by early tomorrow afternoon. * Impact...At 10.0 feet, Flooding will affect low lying areas along the river in Wayland, including a portion of Shore Road and Pelham Island Road near Heards Pond.this afternoon && LAT...LON 4227 7140 4230 7145 4248 7139 4245 7129 $$ MAC009-100430- /O.NEW.KBOX.FL.W.0003.210710T0600Z-210710T1200Z/ /ANDM3.1.ER.210710T0600Z.210710T0600Z.210710T0600Z.UU/ 1219 PM EDT Fri Jul 9 2021 The National Weather Service in Norton has issued a * Flood Warning for the Shawsheen River Undef Andover. * From late tonight to tomorrow morning. * At 11:30 AM EDT Friday the stage was 26.3 feet. * Flood stage is 29.0 feet. * Minor flooding is forecast. * Forecast...The river is expected to rise to a crest of 29.0 feet just after midnight tonight. The river is then expected to fall during the overnight hours. * Impact...At 29.0 feet, Floodwaters encroach on very lowest lying business parking lots off of Route 114 in Lawrence and North Andover that are adjacent to the Shawsheen River. && LAT...LON 4264 7121 4270 7117 4271 7109 4261 7116 $$ NB
5 follow-up statements
375 WGUS81 KBOX 091932 FLSBOX Flood Statement National Weather Service Boston/Norton MA 332 PM EDT Fri Jul 9 2021 ...The Flood Warning is extended for the following rivers in Massachusetts... Sudbury River At Saxonville affecting Middlesex County. Shawsheen River At Andover affecting Essex County. ...The Flood Warning continues for the following rivers in Rhode Island... Pawtuxet River At Cranston affecting Providence and Kent Counties. .Tropical Storm Elsa has brought a widespread 1.5 to 4 inches of rainfall to the region, resulting in sharp rises in some area rivers. PRECAUTIONARY/PREPAREDNESS ACTIONS... Motorists should not attempt to drive around barricades or drive cars through flooded areas. Caution is urged when walking near riverbanks. Additional information is available at www.weather.gov. The next statement will be issued by 330 AM EDT. && MAC017-100745- /O.EXT.KBOX.FL.W.0004.210709T1932Z-210711T1500Z/ /SAXM3.1.ER.210709T1645Z.210710T0600Z.210711T0900Z.NO/ 332 PM EDT Fri Jul 9 2021 ...The Flood Warning is now in effect until late Sunday morning... The Flood Warning continues for the Sudbury River At Saxonville. * From this afternoon to late Sunday morning. * At 2:15 PM EDT Friday the stage was 10.3 feet. * Flood stage is 10.0 feet. * Minor flooding is occurring and minor flooding is forecast. * Recent Activity...The maximum river stage in the 24 hours ending at 2:15 PM EDT Friday was 10.3 feet. * Forecast...The river is expected to rise to a crest of 10.7 feet just after midnight tonight. It will then fall below flood stage early Sunday morning. * Impact...At 11.0 feet, Flooding will affect portions of Shore and Pelham Island Roads as well as River Road in wayland. Flooding will also begin to impact Route 20 at Route 27. Other low lying areas along the river will experience flooding. && LAT...LON 4227 7140 4230 7145 4248 7139 4245 7129 $$ MAC009-100745- /O.EXT.KBOX.FL.W.0003.210710T0400Z-210710T1312Z/ /ANDM3.1.ER.210710T0400Z.210710T0600Z.210710T0712Z.UU/ 332 PM EDT Fri Jul 9 2021 ...The Flood Warning is now in effect until late tomorrow morning... The Flood Warning continues for the Shawsheen River Undef Andover. * From late tonight to late tomorrow morning. * At 2:30 PM EDT Friday the stage was 27.7 feet. * Flood stage is 29.0 feet. * Minor flooding is forecast. * Forecast...The river is expected to rise above flood stage just after midnight tonight to a crest of 29.1 feet. It will then fall below flood stage late tonight. * Impact...At 29.0 feet, Floodwaters encroach on very lowest lying business parking lots off of Route 114 in Lawrence and North Andover that are adjacent to the Shawsheen River. && LAT...LON 4264 7121 4270 7117 4271 7109 4261 7116 $$ RIC003-007-100745- /O.CON.KBOX.FL.W.0001.000000T0000Z-210711T1648Z/ /CRAR1.2.ER.210709T1955Z.210710T0000Z.210711T1048Z.NO/ 332 PM EDT Fri Jul 9 2021 ...The Flood Warning remains in effect... The Flood Warning continues for the Pawtuxet River At Cranston. * Until early Sunday afternoon. * At 2:45 PM EDT Friday the stage was 8.4 feet. * Flood stage is 9.0 feet. * Moderate flooding is forecast. * Forecast...The river is expected to rise above flood stage late this afternoon to a crest of 11.1 feet this evening. It will then fall below flood stage Sunday morning. * Impact...At 11.0 feet, Structures and homes are impacted in low lying sections of Warwick. Affected areas include homes and businesses on Wellington Avenue and Avery Road in Cranston, as well as Pioneer Avenue, Bellows Street, Venturi Avenue and a portion of River Street in Warwick. && LAT...LON 4178 7156 4180 7139 4172 7137 4170 7155 $$ NB
042 WGUS81 KBOX 100237 FLSBOX Flood Statement National Weather Service Boston/Norton MA 1037 PM EDT Fri Jul 9 2021 ...Observed flooding changed to Minor severity and increased in duration for the following rivers in Rhode Island... Pawtuxet River At Cranston affecting Providence and Kent Counties. ...The Flood Warning continues for the following rivers in Massachusetts... Sudbury River At Saxonville affecting Middlesex County. PRECAUTIONARY/PREPAREDNESS ACTIONS... Motorists should not attempt to drive around barricades or drive cars through flooded areas. Be especially cautious at night when it is harder to recognize the dangers of flooding. Additional information is available at www.weather.gov. The next statement will be issued late tonight by 500 AM EDT. && RIC003-007-100700- /O.EXT.KBOX.FL.W.0001.000000T0000Z-210710T0655Z/ /CRAR1.1.ER.210710T0015Z.210710T0045Z.210710T0055Z.NO/ 1037 PM EDT Fri Jul 9 2021 ...Observed flooding increased to Minor severity and increased in duration until just after midnight tonight... The Flood Warning continues for the Pawtuxet River At Cranston. * Until just after midnight tonight. * At 8:45 PM EDT Friday the stage was 9.0 feet. * Flood stage is 9.0 feet. * Minor flooding is occurring. * Recent Activity...The maximum river stage in the 24 hours ending at 8:45 PM EDT Friday was 9.0 feet. * Forecast...The river is expected to fall to 6.9 feet early Monday afternoon. * Impact...At 9.0 feet, Minor lowland flooding will occur along the river as it flows through Warwick and Cranston. && LAT...LON 4178 7156 4180 7139 4172 7137 4170 7155 $$ MAC017-101445- /O.CON.KBOX.FL.W.0004.000000T0000Z-210711T1500Z/ /SAXM3.1.ER.210709T1645Z.210710T0600Z.210711T0900Z.NO/ 1037 PM EDT Fri Jul 9 2021 ...The Flood Warning remains in effect... The Flood Warning continues for the Sudbury River At Saxonville. * Until late Sunday morning. * At 9:15 PM EDT Friday the stage was 10.5 feet. * Flood stage is 10.0 feet. * Minor flooding is occurring and minor flooding is forecast. * Recent Activity...The maximum river stage in the 24 hours ending at 9:15 PM EDT Friday was 10.5 feet. * Forecast...The river is expected to rise to a crest of 10.7 feet just after midnight tonight. It will then fall below flood stage early Sunday morning. * Impact...At 11.0 feet, Flooding will affect portions of Shore and Pelham Island Roads as well as River Road in Wayland. Flooding will also begin to impact Route 20 at Route 27. Other low lying areas along the river will experience flooding. && LAT...LON 4227 7140 4230 7145 4248 7139 4245 7129 $$ Belk
918
WGUS81 KBOX 100810
FLSBOX
Flood Statement
National Weather Service Boston/Norton MA
410 AM EDT Sat Jul 10 2021
...The Flood Warning is extended for the following rivers in
Massachusetts...Rhode Island...
Blackstone River At Woonsocket affecting Providence and Worcester
Counties.
...The Flood Warning continues for the following rivers in
Massachusetts...
Sudbury River At Saxonville affecting Middlesex County.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Motorists should not attempt to drive around barricades or drive
cars through flooded areas.
Be especially cautious at night when it is harder to recognize the
dangers of flooding.
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Additional information is available at www.weather.gov.
The next statement will be issued this afternoon at 515 PM EDT.
&&
MAC027-RIC007-102115-
/O.EXT.KBOX.FL.W.0006.210710T0900Z-210711T0100Z/
/WOOR1.1.ER.210710T0900Z.210710T1200Z.210710T1851Z.NO/
410 AM EDT Sat Jul 10 2021
...The Flood Warning is now in effect until late this evening...
The Flood Warning continues for
the Blackstone River At Woonsocket.
* Until late this evening.
* At 4:00 AM EDT Saturday the stage was 8.9 feet.
* Flood stage is 9.0 feet.
* Minor flooding is forecast.
* Forecast...The river is expected to rise above flood stage early
this morning to a crest of 9.2 feet this morning. It will then
fall below flood stage this afternoon.
* Impact...At 9.0 feet, Flooding may begin to affect the lower
parking area to the Albion Mill Apartments. Lower lying
residential areas along the Rhode Island and Massachusetts line,
including the lower level of the River Island Condominiums in
Woonsocket, may begin to experience flooding. Businesses along the
river should take the necessary actions to protect property.
&&
LAT...LON 4201 7157 4202 7149 4197 7142 4186 7136
4185 7141
$$
MAC017-102115-
/O.CON.KBOX.FL.W.0004.000000T0000Z-210711T1500Z/
/SAXM3.1.ER.210709T1645Z.210710T0600Z.210711T0900Z.NO/
410 AM EDT Sat Jul 10 2021
...The Flood Warning remains in effect...
The Flood Warning continues for
the Sudbury River At Saxonville.
* Until late tomorrow morning.
* At 4:00 AM EDT Saturday the stage was 10.5 feet.
* Flood stage is 10.0 feet.
* Minor flooding is occurring and minor flooding is forecast.
* Recent Activity...The maximum river stage in the 24 hours ending
at 9:15 PM EDT Friday was 10.5 feet.
* Forecast...The river has crested and is expected to gradually
recede today. It will then fall below flood stage late tonight.
* Impact...At 11.0 feet, Flooding will affect portions of Shore and
Pelham Island Roads as well as River Road in wayland. Flooding
will also begin to impact Route 20 at Route 27. Other low lying
areas along the river will experience flooding.
&&
LAT...LON 4227 7140 4230 7145 4248 7139 4245 7129
$$
BL795
WGUS81 KBOX 101637
FLSBOX
Flood Statement
National Weather Service Boston/Norton MA
1237 PM EDT Sat Jul 10 2021
...The Flood Warning is extended for the following rivers in
Massachusetts...Rhode Island...
Sudbury River At Saxonville affecting Middlesex County.
Blackstone River At Woonsocket affecting Providence and Worcester
Counties.
.Doppler radar and automated rain gauges indicated between 2 to 5
inches of rain fell due to Elsa. As a result, flooding is continuing
in some communities along some rivers.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Motorists should not attempt to drive around barricades or drive
cars through flooded areas.
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Additional information is available at www.weather.gov.
The next statement will be issued late tonight by 145 AM EDT.
&&
MAC027-RIC007-110530-
/O.EXT.KBOX.FL.W.0006.000000T0000Z-210711T0519Z/
/WOOR1.1.ER.210710T0738Z.210710T1800Z.210710T2319Z.NO/
1237 PM EDT Sat Jul 10 2021
...The Flood Warning is now in effect until just after midnight
tonight...
The Flood Warning continues for
the Blackstone River At Woonsocket.
* Until just after midnight tonight.
* At 11:30 AM EDT Saturday the stage was 9.5 feet.
* Flood stage is 9.0 feet.
* Minor flooding is occurring and minor flooding is forecast.
* Recent Activity...The maximum river stage in the 24 hours ending
at 11:30 AM EDT Saturday was 9.5 feet.
* Forecast...The river is expected to fall below flood stage this
evening and continue falling to 4.4 feet Tuesday morning.
* Impact...At 9.0 feet, Flooding may begin to affect the lower
parking area to the Albion Mill Apartments. Lower lying
residential areas along the Rhode Island and Massachusetts line,
including the lower level of the River Island Condominiums in
Woonsocket, may begin to experience flooding. Businesses along the
river should take the necessary actions to protect property.
&&
LAT...LON 4201 7157 4202 7149 4197 7142 4186 7136
4185 7141
$$
MAC017-110545-
/O.EXT.KBOX.FL.W.0004.000000T0000Z-210711T1800Z/
/SAXM3.1.ER.210709T1645Z.210710T0600Z.210711T1200Z.NO/
1237 PM EDT Sat Jul 10 2021
...The Flood Warning is now in effect until early tomorrow
afternoon...
The Flood Warning continues for
the Sudbury River At Saxonville.
* Until early tomorrow afternoon.
* At 11:15 AM EDT Saturday the stage was 10.2 feet.
* Flood stage is 10.0 feet.
* Minor flooding is occurring and minor flooding is forecast.
* Recent Activity...The maximum river stage in the 24 hours ending
at 11:15 AM EDT Saturday was 10.6 feet.
* Forecast...The river is expected to fall below flood stage
tomorrow morning and continue falling to 9.2 feet Tuesday morning.
* Impact...At 10.0 feet, Flooding will affect low lying areas along
the river in Wayland, including a portion of Shore Road and Pelham
Island Road near Heards Pond.
&&
LAT...LON 4227 7140 4230 7145 4248 7139 4245 7129
$$
RC989 WGUS81 KBOX 110538 FLSBOX Flood Statement National Weather Service Boston/Norton MA 138 AM EDT Sun Jul 11 2021 ...The Flood Warning is cancelled for the following rivers in Massachusetts... Sudbury River At Saxonville affecting Middlesex County. MAC017-110645- /O.CAN.KBOX.FL.W.0004.000000T0000Z-210711T0538Z/ /SAXM3.1.ER.210709T1645Z.210710T0600Z.210711T1200Z.NO/ 138 AM EDT Sun Jul 11 2021 ...The Flood Warning for the Sudbury River At Saxonville has been cancelled... The Flood Warning is cancelled for the Sudbury River At Saxonville. * At 1:30 AM EDT Sunday the stage was 9.9 feet. * Flood stage is 10.0 feet. * Recent Activity...The maximum river stage in the 24 hours ending at 1:30 AM EDT Saturday was 10.6 feet. * Forecast...Has fallen below flood stage and will continue to recede into early next week. By Monday morning the river level will be at 9.5 feet. && LAT...LON 4227 7140 4230 7145 4248 7139 4245 7129 $$ BL
The office that day
Everything else NWS Boston/Norton, MA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 9, 8:19 AM EDT | Flash Flood Warning | BOX | Hampden, Hampshire | 6 hr |
| Jul 9, 9:11 AM EDT | Flash Flood Warning | BOX | Bristol, Middlesex, Norfolk, Worcester | 7 hr |
| Jul 9, 9:32 AM EDT | Flash Flood Warning | BOX | Bristol, Essex, Middlesex, Norfolk, Plymouth, Suffolk | 6 hr |
| Jul 9, 12:19 PM EDT | River Flood Warning | BOX | Norfolk, Suffolk | 4 hr |
| Jul 9, 12:19 PM EDT | River Flood Warning | BOX | Essex | 8 hr |
| Jul 9, 2:24 PM EDT | Areal Flood Warning | BOX | Hampden, Worcester | 8 hr |
| Jul 9, 3:24 PM EDT | Areal Flood Warning | BOX | Bristol, Essex, Middlesex, Norfolk, Plymouth, Suffolk | 5 hr |
| Jul 9, 3:41 PM EDT | Areal Flood Warning | BOX | Bristol, Middlesex, Norfolk, Worcester | 5 hr |
| Jul 9, 4:52 PM EDT | Small Craft Advisory | BOX | 22 hr | |
| Jul 9, 7:50 PM EDT | Special Weather Statement | BOX | Hampden | 40 min |
Nearby
River Flood Warnings in Massachusetts, 2021Every river flood warning 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; radar from the NEXRAD Level II archive; the gauge from the NWS water service and the USGS.