WFO PHI Hydrology Dashboard

Thunderstorms and Heavy Rainfall in the Plains; Hazardous Heat in the South and Southeast

Severe thunderstorms will be possible across the northern/central Plains through Tuesday afternoon and from the central Plains to the Mid-Mississippi Valley Tuesday evening through Wednesday morning. Storms may produce large hail and damaging wind gusts, and heavy rainfall may lead to scattered instances of flash flooding. Meanwhile, hazardous heat persists across the South and Southeast. Read More >

Area River and Lake Summary

Mouse over each site to display hydrograph.

Hydrographs (showing stages and flows over time) are available through AHPS (Advanced Hydrologic Prediction Service) by clicking site names.

No Flood

Near Flood

Minor Flood

Moderate Flood

Major Flood

River Conditions at: 10:05 PM EDT 08/17/2026
Location	Flood Stage (ft.)	Observed (ft.)	24-Hr Change	Crest (ft.)	Forecast for 8.0 AM
Location	Flood Stage (ft.)	Observed (ft.)	24-Hr Change	Crest (ft.)	Tue.	Wed.	Thu.	Fri.
Delaware River
Tocks Island	21.0	6.41	-0.0	6.1	6.0	6.0
Belvidere	22.0	4.43	-0.1	4.6	4.5	4.5
Easton-Phillipsburg	22.0	2.26	-0.1	2.4	2.2	2.0
Riegelsville	22.0	3.89	0.0	3.9	3.8	3.7
Frenchtown	16.0	2.56	+0.1	2.1	1.8	1.7
Stockton	18.0	1.58	+0.2	1.3	0.9	0.8
New Hope-Lambertville	13.0	0.85	+0.3	0.6	0.2	0.1
Washington's Crossing	16.0	-0.23	-0.0	-0.5	-0.8	-0.9
Trenton	20.0	9.23	-0.0	9.1	8.8	8.7
Schuylkill River
Philadelphia near 30th Street	9.0	0.11	+0.4	4.3	3.3	3.6
Berne	12.0	5.1	+0.1	5.3	4.9	4.8
Reading	15.5	3.53	+0.5	3.8	3.0	3.0
Pottstown	12.5	2.14	+0.5	2.5	1.9	1.7
Norristown	13.0	8.25	+0.4	8.4	8.1	7.9
Philadelphia	11.0	6.31	+0.5	6.2	6.1	5.9
Bush Kill
Shoemakers	6.0	1.87	0.0	1.8	1.7	1.7
Brodhead Creek
Minisink Hills	10.0	1.64	-	1.4	1.2	1.1
Jordan Creek
Allentown	8.0	1.25	-0.0	1.3	1.3	1.2
Lehigh River
Lehighton	10.0	2.89	-0.6	2.8	2.7	2.7
Walnutport	8.0	2.4	-0.3	2.3	2.3	2.3
Bethlehem	16.0	1.54	-0.0	1.4	1.4	1.4
Little Lehigh
Allentown	8.0	2.35	-0.0	-	-	-	-	-
Perkiomen Creek
Graterford	11.0	1.32	+0.2	1.5	1.1	1.1
Neshaminy Creek
Langhorne	9.0	2.34	+1.5	3.6	1.0	0.9
Brandywine Creek
Downingtown	7.0	4.93	+1.9	-	-	-	-	-
Chadds Ford	9.0	2.18	+0.6	4.5	1.7	1.7
Wilminton	24.5	18.92	+0.4	20.2	18.5	18.5
Chester Creek
Chester	8.0	2.76	+0.2	-	-	-	-	-
Assunpink Creek
Trenton	8.5	2.79	+0.2	3.0	2.6	2.6
Passaic River
Millington	8.0	4.62	0.0	4.6	4.6	4.6
Chatham	6.0	3.41	-0.0	3.5	3.5	3.5
Pine Brook	19.0	13.43	-0.2	13.6	13.4	13.3
Singac	8.5	3.02	-0.0	3.1	3.0	3.0
Little Falls	7.0	1.61	0.0	1.6	1.6	1.5
Ramapo River
Pompton Lake	11.5	7.3	+0.1	7.3	7.2	7.1
Pompton River
Pompton Plain	16.0	8.16	+0.2	8.1	8.0	8.0
Wanaque River
Wanaque Dam	6.0	1.3	0.0	1.3	1.3	1.3
Pequannock River
Macopin Dam	5.5	2.2	0.0	2.5	2.4	2.5
Rockaway River
Boonton Above Dam	4.5	1.15	+0.1	1.1	1.1	1.1
Boonton Below Dam	5.0	2.3	+0.3	2.4	2.3	2.3
Raritan River
Manville	14.0	4.27	+0.1	4.5	4.2	4.2
Bound Brook	28.0	0.37	+0.5	17.3	16.6	16.6
Raritan	10.0	2.87	+0.1	2.9	2.8	2.7
Stanton	8.0	-2736.0	-2738.8	2.8	2.7	2.7
Millstone River
Blackwells Mills	9.0	2.03	+0.3	2.0	1.7	1.7
Rancocas Creek
Pemberton	2.5	1.59	+0.1	1.7	1.6	1.6
Christina River
Coochs Bridge	11.0	4.88	-	-	-	-	-	-
Red Clay Creek
Wooddale	7.0	2.97	+0.1	-	-	-	-	-
White Clay Creek
Newark	13.0	6.22	-	-	-	-	-	-