About this river
North Prong Alafia River is a 1.9 mile river near Tampa Bay Boating Adventures in Florida. Streamflow is measured at the USGS gauge North Prong Alafia River at Keysville FL (site 02301000). The National Hydrography Dataset places it at stream order 5. Reach geometry comes from the USGS National Hydrography Dataset.
Typical flow by month
1950 to 2026
North Prong Alafia River typically runs highest in August, at a median 184 cfs, and lowest in May, at 38 cfs. The highest flow on record for any single day is 17,500 cfs, in 2025.
| Month | Typical (cfs) | Usual range (cfs) | Relative level |
|---|---|---|---|
| January | 73 | 46 to 121 | |
| February | 84 | 49 to 137 | |
| March | 71 | 37 to 134 | |
| April | 53 | 30 to 90 | |
| May | 38 | 19 to 75 | |
| June | 70 | 34 to 143 | |
| July | 126 | 72 to 236 | |
| August | 184 | 109 to 328 | |
| September | 175 | 98 to 339 | |
| October | 91 | 62 to 153 | |
| November | 69 | 44 to 114 | |
| December | 70 | 42 to 102 |
Typical is the median of each month’s daily median values, and the usual range runs from the median 25th to the median 75th percentile, across about 73 years of record. Statistics published by the US Geological Survey for North Prong Alafia River at Keysville FL (site 02301000). Conditions on any given day can fall well outside the usual range. Check the current reading before you go.
Embed this gauge on your site
Paste this snippet anywhere, an outfitter page, a club site, a trip report, to show North Prong Alafia River's live streamflow, water level and 7-day trend. It reads the USGS gauge directly, updates itself, and links back here.
See every free widget you can put on your site, including live conditions and a 7 day forecast.
