Alert archive / Massachusetts / River Flood Warnings in 2024

River Flood Warning 21, NWS Boston/Norton, MA

January 19, 2024Middlesex County, Massachusetts

NWS Boston/Norton, MA issued this river flood warning at Jan 19, 2024, 1:01 AM EST for Middlesex County, Massachusetts. It was in force for 5 hr.

The area

The outline as issued.

The facts

Issued: Jan 19, 2024, 1:01 AM EST (06:01 UTC)
Expired: Jan 19, 2024, 6:15 AM EST
In force: 5 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 06:02 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 10.09 ft at Jan 18, 2024, 1:00 AM EST.

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.

400 
WGUS41 KBOX 190601
FLWBOX

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Warning
National Weather Service Boston/Norton MA
101 AM EST Fri Jan 19 2024

...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.



Additional information is available at www.weather.gov.

The next statement will be issued this morning at 615 AM EST.

&&

MAC017-191115-
/O.NEW.KBOX.FL.W.0021.240119T0601Z-240119T1115Z/
/SAXM3.1.ER.240110T0844Z.240110T1715Z.240119T0515Z.NO/
101 AM EST Fri Jan 19 2024

...FLOOD WARNING IN EFFECT FROM WEDNESDAY, JANUARY 10 TO THIS 
MORNING...

* WHAT...Minor flooding is occurring.

* WHERE...Sudbury River at Saxonville.

* WHEN...From Wednesday, January 10 to this morning.

* IMPACTS...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.

* ADDITIONAL DETAILS...
  - At 12:15 AM EST Friday the stage was 10.0 feet.
  - Bankfull stage is 10.0 feet.
  - Recent Activity...The maximum river stage in the 24 hours
    ending at 12:15 AM EST Friday was 10.3 feet.
  - Forecast...The river is expected to fall to 9.4 feet Sunday
    evening.
  - Flood stage is 10.0 feet.
  - http://www.weather.gov/safety/flood

&&

LAT...LON 4227 7140 4230 7145 4248 7139 4245 7129


$$

RM

The office that day

Everything else NWS Boston/Norton, MA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jan 19, 2:11 AM EST	Coastal Flood Statement	BOX	Dukes, Nantucket	31 hr
Jan 19, 2:14 PM EST	Small Craft Advisory	BOX		59 hr

Nearby

River Flood Warnings in Massachusetts, 2024 Every river flood warning in 2024

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.