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Elev 217 ft, 38.75 °N, 76.82 °W

Upper Marlboro, MD Severe Weather Alertstar_ratehome

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Current Station
Personal Weather Station
Location: Upper Marlboro, MD
Elevation: 217ft
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Active Weather Alerts

Small Craft Advisory
Issued: 8:05 PM Aug. 20, 2026 – National Weather Service
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS
EVENING...

* WHAT...South winds 10 to 15 kt with gusts up to 20 kt.

* WHERE...Tidal Potomac River from Key Bridge to Smith Point VA,
and Chesapeake Bay and adjoining estuaries north of Smith
Point VA.

* WHEN...Until 8 PM EDT this evening.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

Tornado Watch
Issued: 7:01 PM Aug. 20, 2026 – National Weather Service
THE NATIONAL WEATHER SERVICE HAS ISSUED TORNADO WATCH 605 UNTIL
10 PM EDT THIS EVENING WHICH REPLACES A PORTION OF SEVERE
THUNDERSTORM WATCH 604. THE NEW WATCH IS VALID FOR THE FOLLOWING
AREAS

THE NEW WATCH INCLUDES THE FOLLOWING ADJACENT COASTAL WATERS

CHESAPEAKE BAY NORTH OF POOLES ISLAND MD
CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT MD

CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH MD

CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT MD

CHESAPEAKE BAY FROM DRUM POINT MD TO SMITH POINT VA

TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD MD

TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND MD

TIDAL POTOMAC FROM COBB ISLAND MD TO SMITH POINT VA

PATAPSCO RIVER INCLUDING BALTIMORE HARBOR
CHESTER RIVER TO QUEENSTOWN MD
EASTERN BAY
CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER

PATUXENT RIVER TO BROOMES ISLAND MD
TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH
ISLAND

Tornado Watch
Issued: 7:01 PM Aug. 20, 2026 – National Weather Service
THE NATIONAL WEATHER SERVICE HAS ISSUED TORNADO WATCH 605 UNTIL
10 PM EDT THIS EVENING WHICH REPLACES A PORTION OF SEVERE
THUNDERSTORM WATCH 604. THE NEW WATCH IS VALID FOR THE FOLLOWING
AREAS

THE DISTRICT OF COLUMBIA

IN MARYLAND THE NEW WATCH INCLUDES 12 COUNTIES

IN CENTRAL MARYLAND

ANNE ARUNDEL                       HOWARD
MONTGOMERY
PRINCE GEORGES

IN NORTH CENTRAL MARYLAND

CARROLL

IN NORTHEAST MARYLAND

CECIL

IN NORTHERN MARYLAND

BALTIMORE
BALTIMORE CITY
HARFORD

IN SOUTHERN MARYLAND

CALVERT                       CHARLES
ST. MARYS

IN VIRGINIA THE NEW WATCH INCLUDES 11 COUNTIES

IN CENTRAL VIRGINIA

CITY OF FREDERICKSBURG
KING GEORGE

IN NORTHERN VIRGINIA

ARLINGTON
CITY OF ALEXANDRIA
CITY OF FAIRFAX
CITY OF FALLS CHURCH
CITY OF MANASSAS
CITY OF MANASSAS PARK
FAIRFAX
PRINCE WILLIAM
STAFFORD

THIS INCLUDES THE CITIES OF ABERDEEN, ABINGDON, ADAMS MORGAN,
ADEN, ALEXANDRIA, ANDORA, ANNANDALE, ANNAPOLIS, APPLETON,
ARKENDALE, ARLINGTON, ARNOLD, BALLSTON, BALTIMORE, BARCROFT,
BARKSDALE, BAY VIEW, BETHESDA, BLAKE, BOHEMIAS MILLS, BOWIE,
BOYDS, BRANTWOOD, BROOKFIELD, BROOMES ISLAND, BURKE, BYNUM,
CALIFORNIA, CALLAWAY, CATONSVILLE, CHANTILLY, CHERRYDALE,
CHESAPEAKE BEACH, CLARKSVILLE, CLINTON, COLLEGE PARK, COLUMBIA,
COVE POINT, DAHLGREN, DALE CITY, DAMERON, DRUM POINT, DUNDALK,
DUNKIRK, EDGEWOOD, ELDERSBURG, ESSEX, FAIRFAX, FAIRFAX STATION,
FALLS CHURCH, FALMOUTH, FELLS POINT, FOUR CORNERS,
FREDERICKSBURG, GAITHERSBURG, GAMBER, GARRISONVILLE, GERMANTOWN,
GLEN BURNIE, GLENDIE, GLENMONT, GREENBELT, HARFORD FURNACE,
HICKORY, HISTORIC ELLICOTT CITY, INDEPENDENT HILL, LAKE RIDGE,
LANGLEY, LEXINGTON PARK, LONG BEACH, MAGNOLIA, MANASSAS,
MANASSAS PARK, MCLEAN, MONTCLAIR, MONTPELIER, MOUNT HARMONY,
PARK HEIGHTS, PARKVILLE, PINEY POINT, RANDALLSTOWN,
REAGAN NATIONAL AIRPORT, RESTON, RIDGE, RIDGEWAY, RIVERCREST,
ROLLINS FORK, ROSSLYN, SEVERN, SEVERNA PARK, SHILOH,
SILVER SPRING, SIMPSONVILLE, SOTTERLEY, SOUTH GATE, ST. CHARLES,
SUITLAND-SILVER HILL, TANTALLON, TOWSON, WALDORF, WASHINGTON,
WESTMINSTER, WIDEWATER, WOODBRIDGE, WOODLAWN, AND WOODSTOCK.

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