North Prong Alafia River at Keysville FL Water Level Today

NWS river forecast

Forecast from the NOAA National Water Prediction Service. Issued a few times a day and only while a forecast is active. Not for navigation.

Last 30 days

About this gauge

USGS gauge 02301000 sits on the North Prong Alafia River and reads everything draining 135 square miles of the Alafia basin. Its datum sits 38 feet above sea level NAVD88. Daily flow has been on record here since 1950, 73 years of it.

Where this gauge sits in the drainage

One gauged site sits upstream of here. The closest is North Prong Alafia River near Nichols FL, reading 39 square miles. This gauge adds the 96 square miles that drain in between. Downstream the next reading comes from Alafia River at Lithia Pinecrest Rd at Lithia, FL at 335 square miles, so what passes this gauge is about 40% of the water measured there. Water passing here goes on to Alafia River at Gibsonton FL.

Normal flows here

The North Prong Alafia River runs a median of 74 cfs at this gauge across 73 years of record. August is the fullest month at a median 184 cfs, and May the leanest at 38 cfs. The highest daily mean on record is 17,500 cfs in 2025, and the lowest is 1.6 cfs in 2012.

Medians from the USGS daily-statistics record, 1950 to 2026. A month at 100% is running at its own long-term median.