Station Name: East Branch Brandywine Creek below Downingtown, PA
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 213 feet

Nearest Address:
Downingtown Pike
Downingtown, PA 19380
Chester County

GPS Coordinates: 39.9687191, -75.6732715

Nearby Water Temperatures

Severe Thunderstorm Warning issued July 21 at 3:58PM EDT until July 21 at 4:45PM EDT by NWS Mount Holly NJ

Effective: Tue July 21, 2026, 3:58 PM
Expires: Tue July 21, 2026, 4:45 PM

SVRPHI The National Weather Service in Mount Holly NJ has issued a * Severe Thunderstorm Warning for... Northwestern New Castle County in northern Delaware... Southwestern Chester County in southeastern Pennsylvania... Western Delaware County in southeastern Pennsylvania... * Until 445 PM EDT. * At 358 PM EDT, a severe thunderstorm was located over Wakefield, or 15 miles north of Havre De Grace, moving east at 45 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Damage to roofs, siding, trees, and power lines is possible. * Locations impacted include... Wilmington, Newark, West Chester, Elsmere, Kennett Square, New Castle, Oxford, Parkesburg, West Grove, Newport, Glen Roy, Homeville, Cochranville, Stanton, North Star, Wilmington Manor, Mount Vernon, Marshallton, Pike Creek, and Ashland. This includes Interstate 95 in Delaware between mile markers 3 and 13.

A Tornado Watch remains in effect until 900 PM EDT for northern Delaware...and southeastern Pennsylvania. For your protection move to an interior room on the lowest floor of a building. Torrential rainfall is occurring with this storm, and may lead to flash flooding. Do not drive your vehicle through flooded roadways. A Tornado Watch remains in effect until 900 PM EDT for northern Delaware...and southeastern Pennsylvania.

Severe Thunderstorm Warning issued July 21 at 3:37PM EDT until July 21 at 4:30PM EDT by NWS Mount Holly NJ

Effective: Tue July 21, 2026, 3:37 PM
Expires: Tue July 21, 2026, 4:30 PM

SVRPHI The National Weather Service in Mount Holly NJ has issued a * Severe Thunderstorm Warning for... Central Chester County in southeastern Pennsylvania... Southwestern Delaware County in southeastern Pennsylvania... * Until 430 PM EDT. * At 337 PM EDT, a severe thunderstorm was located near Coatesville, or 12 miles west of West Chester, moving east at 30 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Damage to roofs, siding, trees, and power lines is possible. * Locations impacted include... West Chester, Coatesville, Westtown, Downingtown, Parkesburg, Cheyney, Elam, Marshallton, Chelsea, Lionville-Marchwood, Gradyville, Paoli, Lionville, Concordville, Lima, West Goshen, Malvern, Chester Heights, South Coatesville, and Modena. This includes Pennsylvania Turnpike between mile markers 316 and 318, and between mile markers 320 and 323.

A Tornado Watch remains in effect until 900 PM EDT for southeastern Pennsylvania. For your protection move to an interior room on the lowest floor of a building. A Tornado Watch remains in effect until 900 PM EDT for southeastern Pennsylvania.

Tornado Watch issued July 21 at 2:06PM EDT until July 21 at 9:00PM EDT by NWS State College PA

Effective: Tue July 21, 2026, 2:06 PM
Expires: Tue July 21, 2026, 9:00 PM

THE NATIONAL WEATHER SERVICE HAS ISSUED TORNADO WATCH 507 IN EFFECT UNTIL 9 PM EDT THIS EVENING FOR THE FOLLOWING AREAS IN PENNSYLVANIA THIS WATCH INCLUDES 3 COUNTIES IN CENTRAL PENNSYLVANIA LANCASTER LEBANON SCHUYLKILL THIS INCLUDES THE CITIES OF LANCASTER, LEBANON, AND POTTSVILLE.

Severe Thunderstorm Warning issued July 21 at 3:57PM EDT until July 21 at 4:30PM EDT by NWS State College PA

Effective: Tue July 21, 2026, 3:57 PM
Expires: Tue July 21, 2026, 4:30 PM

At 356 PM EDT, a severe thunderstorm was located over Homeville, moving east at 40 mph. HAZARD...60 mph wind gusts and quarter size hail. SOURCE...Radar indicated. IMPACT...Hail damage to vehicles is expected. Expect wind damage to roofs, siding, and trees. Locations impacted include... Willow Street, Paradise, Strasburg, Quarryville, Gap, Delta, Wakefield, Smithville, Shenks Ferry, Holtwood, Safe Harbor, and Christiana.

A Tornado Watch remains in effect until 900 PM EDT for south central Pennsylvania. Stay inside a well built structure and keep away from windows. Torrential rainfall is occurring with this storm, and may lead to flash flooding. Do not drive your vehicle through flooded roadways.

Severe Thunderstorm Warning issued July 21 at 3:33PM EDT until July 21 at 4:30PM EDT by NWS State College PA

Effective: Tue July 21, 2026, 3:33 PM
Expires: Tue July 21, 2026, 4:30 PM

SVRCTP The National Weather Service in State College PA has issued a * Severe Thunderstorm Warning for... Southeastern Lancaster County in south central Pennsylvania... Southeastern York County in south central Pennsylvania... * Until 430 PM EDT. * At 332 PM EDT, a severe thunderstorm was located over Holtwood, moving east at 40 mph. HAZARD...60 mph wind gusts and quarter size hail. SOURCE...Radar indicated. IMPACT...Hail damage to vehicles is expected. Expect wind damage to roofs, siding, and trees. * Locations impacted include... Willow Street, Paradise, Strasburg, Quarryville, Gap, Delta, Wakefield, Smithville, Shenks Ferry, Holtwood, Safe Harbor, and Christiana.

Stay inside a well built structure and keep away from windows. Very heavy rainfall is occurring with this severe thunderstorm, and may lead to flash flooding. Do not drive your vehicle through flooded roadways. A Tornado Watch remains in effect until 900 PM EDT for south central Pennsylvania.