Station Name: STONY BROOK AT RT 20 AT WALTHAM, MA
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 105 feet

Nearest Address:
99 Sibley Rd
Weston, MA 02493
Middlesex County

GPS Coordinates: 42.368985, -71.2706123

Nearby Water Temperatures

Coastal Flood Advisory issued February 22 at 3:17AM EST until February 23 at 7:00AM EST by NWS Boston/Norton MA

Effective: Sun February 22, 2026, 3:17 AM
Expires: Sun February 22, 2026, 4:30 PM

* WHAT...Up to one foot of inundation above ground level expected in low-lying areas near shorelines and tidal waterways (11.3 to 13.2 feet Mean Lower Low Water). * WHERE...Eastern Essex, Suffolk and Eastern Norfolk Counties. * WHEN...From 1 AM to 7 AM EST Monday. * IMPACTS...Shallow pockets of flooding less than one foot deep affects the lowest lying areas along the coast, including Morrissey Boulevard in Boston. Most roads remain passable. Flooding up to one foot deep affects coastal roads on the North Shore from Salem to Gloucester and Newburyport. Rough surf will cause flooding on some coastal roads around the time of high tide due to splashover.

If travel is required, allow extra time as some roads may be closed. Do not drive around barricades or through water of unknown depth. Take the necessary actions to protect flood-prone property.

Blizzard Warning issued February 22 at 1:45AM EST until February 24 at 7:00AM EST by NWS Boston/Norton MA

Effective: Sun February 22, 2026, 1:45 AM
Expires: Sun February 22, 2026, 4:15 PM

* WHAT...Blizzard conditions expected. Total snow accumulations between 1 and 2 feet. Winds gusting as high as 70 mph. * WHERE...Portions of eastern, northeastern, and southeastern Massachusetts and Rhode Island. * WHEN...From 4 PM this afternoon to 7 AM EST Tuesday. * IMPACTS...Visibilities may drop below 1/4 mile due to falling and blowing snow. The strong winds and weight of snow on tree limbs may down power lines and could cause sporadic power outages. Whiteout conditions are expected and will make travel treacherous and potentially life-threatening. Travel could be very difficult to impossible. Areas of blowing snow could significantly reduce visibility. The hazardous conditions could impact the Monday morning and evening commutes. Very strong winds could cause extensive tree damage.

Travel should be restricted to emergencies only. If you must travel, have a winter survival kit with you. If you get stranded, stay with your vehicle.

Blizzard Warning issued February 22 at 11:16AM EST until February 24 at 7:00AM EST by NWS Boston/Norton MA

Effective: Sun February 22, 2026, 11:16 AM
Expires: Mon February 23, 2026, 3:15 AM

* WHAT...Blizzard conditions expected. Total snow accumulations between 18 and 25 inches. Winds gusting as high as 75 mph. * WHERE...Portions of eastern, northeastern, and southeastern Massachusetts and northern and southern Rhode Island. * WHEN...From 4 PM this afternoon to 7 AM EST Tuesday. * IMPACTS...Visibilities may drop below 1/4 mile due to falling and blowing snow. The strong winds and weight of snow on tree limbs may down power lines and could cause sporadic power outages. Whiteout conditions are expected and will make travel treacherous and potentially life-threatening. Travel could be very difficult to impossible. Areas of blowing snow could significantly reduce visibility. The hazardous conditions could impact the Monday morning and evening commutes. Very strong winds could cause extensive tree damage.

Travel should be restricted to emergencies only. If you must travel, have a winter survival kit with you. If you get stranded, stay with your vehicle.

Winter Storm Warning issued February 22 at 1:45AM EST until February 24 at 7:00AM EST by NWS Boston/Norton MA

Effective: Sun February 22, 2026, 1:45 AM
Expires: Sun February 22, 2026, 4:15 PM

* WHAT...Heavy snow expected. Total snow accumulations between 10 and 20 inches. Winds gusting as high as 55 mph. * WHERE...Portions of central, northeastern, and western Massachusetts. * WHEN...From 4 PM this afternoon to 7 AM EST Tuesday. * IMPACTS...Travel could be very difficult to impossible with near-blizzard conditions at times. Areas of blowing snow could significantly reduce visibility. The hazardous conditions could impact the Monday morning and evening commutes. Strong winds could cause tree damage.

If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency.

Blizzard Warning issued February 22 at 11:16AM EST until February 24 at 7:00AM EST by NWS Boston/Norton MA

Effective: Sun February 22, 2026, 11:16 AM
Expires: Mon February 23, 2026, 3:15 AM

* WHAT...Blizzard conditions expected. Total snow accumulations between 12 and 22 inches. Winds gusting as high as 55 mph. * WHERE...Portions of central, eastern, northeastern, and western Massachusetts. * WHEN...From 4 PM this afternoon to 7 AM EST Tuesday. * IMPACTS...Travel could be very difficult to impossible. The hazardous conditions could impact the Monday morning and evening commutes. Strong winds could cause tree damage.

Travel should be restricted to emergencies only. If you must travel, have a winter survival kit with you. If you get stranded, stay with your vehicle.