Water Levels / Maryland

Maryland Water Levels

135 USGS monitoring stations in Maryland. Streamflow (discharge) in cubic feet per second — a raw reading, not a computed flood or drought status.

ANTIETAM CREEK NEAR SHARPSBURG, MD

Site 01619500 — 8/24/2026, 1:30:00 AM

159 cfs

ANTIETAM CREEK NEAR WAYNESBORO, PA

Site 01619000 — 8/24/2026, 1:45:00 AM

70.7 cfs

ARROWHEAD RUN AT THAYERVILLE, MD

Site 03075850 — 8/24/2026, 1:15:00 AM

0.34 cfs

BAISMAN RUN AT BROADMOOR, MD

Site 01583580 — 8/24/2026, 1:20:00 AM

0.29 cfs

BEAR CREEK AT FRIENDSVILLE, MD

Site 03076600 — 8/24/2026, 1:30:00 AM

85.5 cfs

BEAVERDAM CREEK NEAR CHEVERLY, MD

Site 01651730 — 8/24/2026, 2:00:00 AM

-1.1 cfs

BEAVERDAM RUN AT COCKEYSVILLE, MD

Site 01583600 — 8/24/2026, 1:25:00 AM

11.6 cfs

BEAVER RUN NEAR FINKSBURG, MD

Site 01586210 — 8/24/2026, 1:00:00 AM

5.54 cfs

BEETREE RUN AT BENTLEY SPRINGS, MD

Site 01581960 — 8/24/2026, 1:15:00 AM

7.24 cfs

BENNETT CREEK AT PARK MILLS, MD

Site 01643500 — 8/24/2026, 1:45:00 AM

37.2 cfs

BIG ELK CREEK AT ELK MILLS, MD

Site 01495000 — 8/24/2026, 1:45:00 AM

81.9 cfs

BIG PIPE CREEK AT BRUCEVILLE, MD

Site 01639500 — 8/24/2026, 2:00:00 AM

118 cfs

BIRCH BRANCH AT SHOWELL, MD

Site 0148471320 — 8/24/2026, 1:45:00 AM

1.02 cfs

BYNUM RUN AT BEL AIR, MD

Site 01581500 — 8/24/2026, 1:15:00 AM

5.16 cfs

BYNUM RUN NEAR ABINGDON, MD

Site 01581590 — 8/24/2026, 1:45:00 AM

24.4 cfs

CABIN BRANCH NEAR BOYDS, MD

Site 01644380 — 8/24/2026, 2:00:00 AM

1.27 cfs

CASSELMAN RIVER AT GRANTSVILLE, MD

Site 03078000 — 8/24/2026, 1:30:00 AM

61.7 cfs

CATOCTIN CREEK NEAR MIDDLETOWN, MD

Site 01637500 — 8/24/2026, 1:45:00 AM

46.1 cfs

CATTAIL CREEK NEAR GLENWOOD, MD

Site 01591400 — 8/24/2026, 1:45:00 AM

12 cfs

Cherry Creek at State Park Road near McHenry, MD

Site 03075905 — 8/24/2026, 1:20:00 AM

11.1 cfs

CHICAMACOMICO RIVER NEAR SALEM, MD

Site 01490000 — 8/24/2026, 1:15:00 AM

9.35 cfs

CHOPTANK RIVER NEAR GREENSBORO, MD

Site 01491000 — 8/24/2026, 1:15:00 AM

72.7 cfs

CONOCOCHEAGUE CREEK AT FAIRVIEW, MD

Site 01614500 — 8/24/2026, 1:45:00 AM

1,010 cfs

CRANBERRY BRANCH NEAR WESTMINSTER, MD

Site 01585500 — 8/24/2026, 2:00:00 AM

0.35 cfs

DEAD RUN AT FRANKLINTOWN, MD

Site 01589330 — 8/24/2026, 1:40:00 AM

1.68 cfs

DEAD RUN AT WOODLAWN, MD

Site 01589315 — 9/11/2025, 3:30:00 PM

2.23 cfs

DEAD RUN NEAR CATONSVILLE, MD

Site 01589312 — 9/12/2025, 7:00:00 PM

0.28 cfs

DEAD RUN TRIBUTARY AT WOODLAWN, MD

Site 01589320 — 9/11/2025, 5:40:00 PM

2.45 cfs

DEAD RUN TRIBUTARY NEAR WOODLAWN, MD

Site 01589316 — 9/12/2025, 4:55:00 PM

0.21 cfs

DEER CREEK AT ROCKS, MD

Site 01580000 — 8/24/2026, 1:15:00 AM

99.2 cfs

DEER CREEK NEAR DARLINGTON, MD

Site 01580520 — 8/24/2026, 1:15:00 AM

214 cfs

EAST BRANCH HERBERT RUN AT ARBUTUS, MD

Site 01589100 — 8/24/2026, 1:40:00 AM

0.68 cfs

FOSTER BRANCH NEAR JOPPATOWNE, MD

Site 01585075 — 8/24/2026, 1:35:00 AM

1.1 cfs

GEORGES CREEK AT FRANKLIN, MD

Site 01599000 — 8/24/2026, 1:45:00 AM

15.6 cfs

GEORGES RUN NEAR BECKLEYSVILLE, MD

Site 01581870 — 8/24/2026, 1:15:00 AM

8.27 cfs

GRAVE RUN NEAR BECKLEYSVILLE, MD

Site 01581830 — 8/24/2026, 2:00:00 AM

3.54 cfs

GUNPOWDER FALLS AT GLENCOE, MD

Site 01582500 — 8/24/2026, 1:20:00 AM

170 cfs

GUNPOWDER FALLS AT HOFFMANVILLE, MD

Site 01581810 — 8/24/2026, 1:15:00 AM

17.3 cfs

GUNPOWDER FALLS NEAR PARKTON, MD

Site 01581920 — 8/24/2026, 2:00:00 AM

108 cfs

GWYNNS FALLS AT VILLA NOVA, MD

Site 01589300 — 8/24/2026, 1:30:00 AM

18.5 cfs

GWYNNS FALLS AT WASHINGTON BLVD AT BALTIMORE, MD

Site 01589352 — 8/24/2026, 1:20:00 AM

44.2 cfs

GWYNNS FALLS NEAR DELIGHT, MD

Site 01589197 — 8/24/2026, 1:50:00 AM

2.55 cfs

HAWLINGS RIVER NEAR SANDY SPRING, MD

Site 01591700 — 8/24/2026, 1:45:00 AM

11.3 cfs

HERRING RUN AT SINCLAIR LANE AT BALTIMORE, MD

Site 01585219 — 8/24/2026, 1:50:00 AM

22.1 cfs

HONEYGO RUN NEAR WHITE MARSH, MD

Site 01585104 — 8/24/2026, 1:50:00 AM

0.84 cfs

JAMES RUN NEAR BELCAMP, MD

Site 01581649 — 8/24/2026, 1:30:00 AM

16.6 cfs

JONES FALLS AT SORRENTO, MD

Site 01589440 — 8/24/2026, 1:15:00 AM

8.46 cfs

LICKING CREEK AT PECTONVILLE, MD

Site 01613525 — 8/24/2026, 2:00:00 AM

203 cfs

LINGANORE CREEK AT LINGANORE RD NEAR FREDERICK, MD

Site 01642600 — 8/24/2026, 1:15:00 AM

103 cfs

LITTLE FALLS AT BLUE MOUNT, MD

Site 01582000 — 8/24/2026, 1:15:00 AM

42.4 cfs

LITTLE GUNPOWDER FALLS AT LAUREL BROOK, MD

Site 01584500 — 8/24/2026, 1:15:00 AM

19.5 cfs

LITTLE PATUXENT RIVER AT GUILFORD, MD

Site 01593500 — 8/24/2026, 2:00:00 AM

26.3 cfs

LITTLE PATUXENT RIVER AT SAVAGE, MD

Site 01594000 — 8/24/2026, 1:15:00 AM

53 cfs

LITTLE SENECA CREEK TRIBUTARY AT BRINK, MD

Site 01644372 — 8/24/2026, 1:55:00 AM

0.18 cfs

LITTLE SENECA CREEK TRIBUTARY NEAR CLARKSBURG, MD

Site 01644371 — 8/24/2026, 2:00:00 AM

0.18 cfs

LITTLE SENECA CREEK TRIBUTARY NEAR GERMANTOWN, MD

Site 01644375 — 8/24/2026, 1:55:00 AM

1.3 cfs

LONG GREEN CREEK AT GLEN ARM, MD

Site 01584050 — 8/24/2026, 1:15:00 AM

3.3 cfs

LONG QUARTER BRANCH AT LUTHERVILLE, MD

Site 01583800 — 8/24/2026, 1:30:00 AM

0.54 cfs

L Pax Riv Trib above Lake Elkhorn nr Guilford, MD

Site 01593450 — 4/29/2026, 1:35:00 PM

0.84 cfs

MANOKIN BRANCH NEAR PRINCESS ANNE, MD

Site 01486000 — 8/24/2026, 1:15:00 AM

0.96 cfs

MARSH RUN AT GRIMES, MD

Site 01617800 — 8/24/2026, 1:15:00 AM

6.56 cfs

MATTAWOMAN CREEK NEAR POMONKEY, MD

Site 01658000 — 8/24/2026, 1:50:00 AM

35.6 cfs

MEETINGHOUSE BRANCH AT CAMP SPRINGS, MD

Site 01653620 — 12/8/2025, 5:05:00 PM

0.33 cfs

MINEBANK RUN NEAR GLEN ARM, MD

Site 0158397967 — 8/24/2026, 2:04:00 AM

0.42 cfs

MONOCACY RIVER AT BRIDGEPORT, MD

Site 01639000 — 8/24/2026, 1:30:00 AM

188 cfs

MONOCACY RIVER AT JUG BRIDGE NEAR FREDERICK, MD

Site 01643000 — 8/24/2026, 1:30:00 AM

1,030 cfs

MONOCACY RIVER AT MONOCACY BLVD AT FREDERICK, MD

Site 01642190 — 8/24/2026, 1:15:00 AM

938 cfs

MONOCACY RIVER NEAR DICKERSON, MD

Site 01643580 — 8/24/2026, 1:30:00 AM

888 cfs

MORGAN CREEK NEAR KENNEDYVILLE, MD

Site 01493500 — 8/24/2026, 1:45:00 AM

13.1 cfs

MORGAN RUN NEAR LOUISVILLE, MD

Site 01586610 — 8/24/2026, 2:00:00 AM

12 cfs

NASSAWANGO CREEK NEAR SNOW HILL, MD

Site 01485500 — 8/24/2026, 1:45:00 AM

11.4 cfs

NORTH BRANCH PATAPSCO RIVER AT CEDARHURST, MD

Site 01586000 — 8/24/2026, 1:00:00 AM

41.6 cfs

NORTH BRANCH POTOMAC RIVER AT KITZMILLER, MD

Site 01595500 — 8/24/2026, 1:15:00 AM

110 cfs

NORTH BRANCH POTOMAC RIVER AT LUKE, MD

Site 01598500 — 8/24/2026, 2:00:00 AM

336 cfs

NORTH BRANCH POTOMAC RIVER AT STEYER, MD

Site 01595000 — 8/24/2026, 1:15:00 AM

76.4 cfs

NORTH BRANCH POTOMAC RIVER NEAR CUMBERLAND, MD

Site 01603000 — 8/24/2026, 1:15:00 AM

781 cfs

NORTHEAST BRANCH ANACOSTIA RIVER AT RIVERDALE, MD

Site 01649500 — 8/24/2026, 1:35:00 AM

21.9 cfs

NORTH GLADE RUN NEAR SWANTON, MD

Site 03075825 — 8/24/2026, 1:15:00 AM

2.09 cfs

NORTHWEST BRANCH ANACOSTIA RIVER AT BRENTWOOD, MD

Site 01651003 — 8/24/2026, 1:40:00 AM

20.9 cfs

Northwest Branch Anacostia River nr Colesville, MD

Site 01650500 — 8/24/2026, 1:45:00 AM

4.07 cfs

Octoraro Creek near Richardsmere, MD

Site 01578475 — 8/24/2026, 1:45:00 AM

371 cfs

PAINT BRANCH NEAR COLLEGE PARK, MD

Site 01649190 — 8/24/2026, 1:35:00 AM

3 cfs

PAINT BRANCH TRIBUTARY NEAR COLESVILLE, MD

Site 01649150 — 8/24/2026, 1:50:00 AM

0.11 cfs

PATAPSCO RIVER AT HOLLOFIELD, MD

Site 01589000 — 8/24/2026, 1:15:00 AM

115 cfs

PATAPSCO RIVER NEAR CATONSVILLE, MD

Site 01589025 — 8/24/2026, 1:30:00 AM

152 cfs

PATAPSCO RIVER NEAR ELKRIDGE, MD

Site 01589035 — 8/24/2026, 2:00:00 AM

156 cfs

Patuxent River below Brighton Dam near Brighton MD

Site 01591610 — 8/24/2026, 1:45:00 AM

16.6 cfs

PATUXENT RIVER NEAR BOWIE, MD

Site 01594440 — 8/24/2026, 1:45:00 AM

189 cfs

Patuxent River near Laurel, MD

Site 01592500 — 8/24/2026, 1:15:00 AM

19.8 cfs

PATUXENT RIVER NEAR UNITY, MD

Site 01591000 — 8/24/2026, 1:55:00 AM

18.8 cfs

PINEY RUN AT DOVER, MD

Site 01583100 — 8/24/2026, 1:45:00 AM

6.37 cfs

PISCATAWAY CREEK AT PISCATAWAY, MD

Site 01653600 — 8/24/2026, 1:30:00 AM

13.1 cfs

PLUMTREE RUN NEAR BEL AIR, MD

Site 01581752 — 8/24/2026, 1:25:00 AM

2.75 cfs

POCOMOKE RIVER NEAR WILLARDS, MD

Site 01485000 — 8/24/2026, 1:45:00 AM

6.15 cfs

POND BRANCH AT OREGON RIDGE, MD

Site 01583570 — 8/24/2026, 1:40:00 AM

0.03 cfs

POTOMAC RIVER AT HANCOCK, MD

Site 01613000 — 8/24/2026, 1:15:00 AM

1,250 cfs

POTOMAC RIVER AT PAW PAW, WV

Site 01610000 — 8/24/2026, 1:15:00 AM

2,930 cfs

POTOMAC RIVER AT POINT OF ROCKS, MD

Site 01638500 — 8/24/2026, 1:55:00 AM

3,240 cfs

POTOMAC RIVER NEAR WASH, DC LITTLE FALLS PUMP STA

Site 01646500 — 8/24/2026, 1:50:00 AM

3,120 cfs

RED RUN NEAR OWINGS MILLS, MD

Site 01589230 — 8/24/2026, 2:05:00 AM

2.45 cfs

SALLIE HARRIS CREEK NEAR CARMICHAEL, MD

Site 01492500 — 8/24/2026, 1:45:00 AM

48.8 cfs

SAMS CREEK AT MCKINSTRYS MILL, MD

Site 01640152 — 8/24/2026, 1:35:00 AM

5.55 cfs

SAVAGE RIV BL SAVAGE RIV DAM NEAR BLOOMINGTON, MD

Site 01597500 — 8/24/2026, 1:15:00 AM

62.5 cfs

SAVAGE RIVER NEAR BARTON, MD

Site 01596500 — 8/24/2026, 1:15:00 AM

23.6 cfs

SAWMILL CREEK AT GLEN BURNIE, MD

Site 01589500 — 8/24/2026, 1:45:00 AM

3.47 cfs

SCOTTS LEVEL BRANCH AT ROCKDALE, MD

Site 01589290 — 8/24/2026, 1:50:00 AM

1.06 cfs

SENECA CREEK AT DAWSONVILLE, MD

Site 01645000 — 8/24/2026, 1:50:00 AM

74 cfs

SLIGO CREEK NEAR TAKOMA PARK, MD

Site 01650800 — 8/24/2026, 2:00:00 AM

2.56 cfs

SOPER BRANCH AT HYATTSTOWN, MD

Site 01643395 — 8/24/2026, 1:55:00 AM

0.24 cfs

SOUTH FORK JABEZ BRANCH AT MILLERSVILLE, MD

Site 01589795 — 8/24/2026, 1:55:00 AM

0.13 cfs

St Clements Creek near Clements, MD

Site 01661050 — 8/24/2026, 1:15:00 AM

12.3 cfs

St Marys River at Great Mills, MD

Site 01661500 — 8/24/2026, 1:15:00 AM

21.4 cfs

SUSQUEHANNA RIVER AT CONOWINGO, MD

Site 01578310 — 8/24/2026, 1:35:00 AM

30,700 cfs

SWAN CREEK AT SWAN CREEK, MD

Site 01580700 — 8/24/2026, 1:15:00 AM

14.1 cfs

TENMILE CREEK NEAR BOYDS, MD

Site 01644390 — 8/24/2026, 1:30:00 AM

0.97 cfs

TENMILE CREEK NEAR CLARKSBURG, MD

Site 01644388 — 8/24/2026, 2:00:00 AM

0.49 cfs

TONOLOWAY CREEK NEAR HANCOCK, MD

Site 01613095 — 8/24/2026, 1:45:00 AM

114 cfs

TOWN CREEK NEAR OLDTOWN, MD

Site 01609000 — 8/24/2026, 1:15:00 AM

70.8 cfs

TRIBUTARY TO DEAD RUN TRIBUTARY AT WOODLAWN, MD

Site 01589317 — 9/12/2025, 2:20:00 PM

0.17 cfs

TUCKAHOE CREEK NEAR RUTHSBURG, MD

Site 01491500 — 8/24/2026, 1:45:00 AM

77.2 cfs

UNICORN BRANCH NEAR MILLINGTON, MD

Site 01493000 — 8/24/2026, 2:00:00 AM

19 cfs

WEST BRANCH HERRING RUN AT IDLEWYLDE, MD

Site 01585200 — 8/24/2026, 2:05:00 AM

0.57 cfs

WESTERN BRANCH AT UPPER MARLBORO, MD

Site 01594526 — 8/24/2026, 1:15:00 AM

57.4 cfs

WESTERN RUN AT WESTERN RUN, MD

Site 01583500 — 8/24/2026, 1:35:00 AM

36.8 cfs

WHEEL CREEK NEAR ABINGDON, MD

Site 0158175320 — 8/24/2026, 1:50:00 AM

0.61 cfs

WHITEMARSH RUN AT WHITE MARSH, MD

Site 01585100 — 8/24/2026, 2:00:00 AM

2.9 cfs

WHITEMARSH RUN NEAR FULLERTON, MD

Site 01585090 — 8/24/2026, 1:50:00 AM

0.87 cfs

WILLS CREEK NEAR CUMBERLAND, MD

Site 01601500 — 8/24/2026, 2:00:00 AM

391 cfs

WINTERS RUN NEAR BEL AIR, MD

Site 01581750 — 8/24/2026, 1:45:00 AM

19.1 cfs

WINTERS RUN NEAR BENSON, MD

Site 01581700 — 8/24/2026, 1:15:00 AM

24.5 cfs

YOUGHIOGHENY RIVER AT FRIENDSVILLE, MD

Site 03076500 — 8/24/2026, 1:45:00 AM

713 cfs

YOUGHIOGHENY RIVER NEAR MCHENRY, MD

Site 03076100 — 8/24/2026, 1:45:00 AM

606 cfs

YOUGHIOGHENY RIVER NEAR OAKLAND, MD

Site 03075500 — 8/24/2026, 1:15:00 AM

116 cfs

YOUGHIOGHENY RIVER NEAR SWALLOW FALLS PARK, MD

Site 03075590 — 8/24/2026, 1:30:00 AM

167 cfs

ZEKIAH SWAMP RUN NEAR NEWTOWN, MD

Site 01660920 — 8/24/2026, 1:15:00 AM

374 cfs

Source: USGS Water Services (National Water Information System).