Mar 18, 2008 - Aug 24, 20255,206 Total Observations
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Observation Data Tables
Date Range to Display
Daily Precip2
Multi-day Precip0
Significant Weather4
Hail0
Condition Monitoring0
Map
Obs Date
Obs Time
Gauge Catch (in)
Snowfall (in)
Snowpack (in)
Flooding
Notes
Depth
SWE
Depth
SWE
2025-08-24
7:00 AM
2.43
NA
NA
NA
NA
1.23 in rainfall between 07:45 23 Aug 2025 and 09:15 23 Aug 2025 that was the tail end of the previous day's almost continuous 8.98 in rainfall; an additional 1.20 in rainfall through the rest of the day equaling 2.43 in rainfall for this 23 hr 15 min reporting period. Total rainfall for this two-day event equaled 11.41 in. High tides on Sat 23 Aug 2025 were forecast 5.3 ft at 08:39AM and 5.9 ft 20:59 PM; actual high tide crests (due largely to the continuing N to NE winds associated with the passing Hurricane Erin offshore) peaked at 7.38 ft at 09:24 AM and 7.86 ft at 21:30 PM thus exacerbating flooding.
2025-08-23
7:45 AM
8.98
NA
NA
NA
NA
Rainfall began at 11:45 AM Fri 22 Aug 2025 with an hour's heavy rain. After that the rainfall was much less intense but almost continuous (following https://www.wunderground.com/history/daily/us/sc/charleston/KCHS/date/2025-8-22 and https://www.wunderground.com/history/daily/us/sc/charleston/KCHS/date/2025-8-23; this online reporting station from the Charleston International Airport is 12.37 km or 7.69 mi northwestward towards the advancing rain front from SC-CR-42 station) until final gauge reading at 07:45 AM Sat 23 Aug 2025. Intermediate readings follow:
2.48 in collected 11:45 to 12:45
+ 3.63 in collected 12:45 to 16:45
+ 2.87 in collected 16:45 to 0745
= 8.98 in total collected
High tides on Fri 22 Aug 2025 were forecast 5.3 ft at 08:24 AM and 6.2 ft 20:30 PM; actual high tide crests (due largely to the continuing N to NE winds associated with the passing Hurricane Erin offshore) peaked at 6.76 ft at 08:24 AM and 7.93 ft at 20:30 PM thus exacerbating flooding.
Local late night news reported the heaviest flooding so far this year over the Charleston downtown peninsula. And the rain continues.