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St. Johns River at Astor

Highest listed crest 4.81 ftFlood stage 2.3 ft32 crests since 1994

The St. Johns River at Astor crested at major flood stage 7 times among the 32 crests the National Weather Service lists from 1994 to 2026. The highest, 4.81 ft on October 12, 2024, was major flooding, 2.51 feet above flood stage. 13 other gauges on the St. Johns River crested above flood stage within a week of it.

The gauge

Highest listed crest
4.81 ft
October 12, 2024
Flood stage
2.3 ft
Major flooding from 4.0 ft
Crests at major
7
26th of 237 gauges in Florida
Most recent flood crest
September 26, 2026
2.70 ft, minor flooding
Location
Lake County
Florida

Flood stages

The thresholds the National Weather Service uses for this gauge today, and how many listed crests reached each.

Flood categories, St. Johns River at Astor
Action stage2.00—The level at which the NWS or its partners begin to take action
Flood stage (minor)2.38Sep 26, 2026Minimal or no property damage, but possibly some public threat
Moderate flood stage3.017Oct 12, 2025Some inundation of structures and roads near the stream
Major flood stage4.07Oct 12, 2024Extensive inundation of structures and roads

Every listed crest

32 crests from 1994 to 2026. Filled: at or above flood stage. Hover a crest for its date and stage.

Listed crests at the St. Johns River at Astor, 1994 to 2026 2345ft Flood stage 2.3 ftMajor 4.0 ft Oct 17, 1994: 3.26 ft, moderate floodingNov 21, 1994: 3.48 ft, moderate floodingSep 10, 1995: 3.10 ft, moderate floodingOct 15, 1995: 3.24 ft, moderate floodingOct 14, 1996: 2.58 ft, minor floodingMar 2, 1998: 2.87 ft, minor floodingOct 17, 1999: 2.85 ft, minor floodingSep 17, 2001: 3.90 ft, moderate floodingSep 26, 2004: 4.18 ft, major floodingSep 10, 2005: 3.08 ft, moderate floodingOct 7, 2005: 2.86 ft, minor floodingSep 25, 2008: 3.82 ft, moderate floodingOct 8, 2015: 3.29 ft, moderate floodingOct 12, 2016: 3.49 ft, moderate floodingSep 13, 2017: 4.43 ft, major floodingOct 6, 2017: 4.46 ft, major floodingOct 20, 2017: 4.03 ft, major floodingSep 23, 2020: 3.46 ft, moderate floodingOct 6, 2020: 3.10 ft, moderate flooding; 12,755 cubic feet per secondOct 1, 2022: 4.71 ft, major floodingNov 10, 2022: 4.52 ft, major floodingMay 28, 2023: 2.47 ft, minor floodingJun 6, 2023: 2.37 ft, minor floodingOct 4, 2023: 3.13 ft, moderate floodingNov 18, 2023: 3.04 ft, moderate floodingDec 18, 2023: 3.01 ft, moderate floodingFeb 8, 2024: 2.47 ft, minor floodingSep 16, 2024: 3.45 ft, moderate floodingOct 12, 2024: 4.81 ft, major floodingSep 14, 2025: 3.10 ft, moderate floodingOct 12, 2025: 3.64 ft, moderate floodingSep 26, 2026: 2.70 ft, minor flooding Highest, 4.81 ft, Oct 12, 2024 200020102020

Crests at or above flood stage, by decade

Crests at or above flood stage per decade, St. Johns River at Astor 1990s: 7 2000s: 5 2010s: 5 2020s: 15 15 1990s2000s2010s2020s
  1. These are the crests the local National Weather Service office lists for the gauge: the highest on record and recent crests. Lesser floods between them may be missing, so counts by decade are a floor.
  2. Categories use today's flood stages. Levees, dams and channel changes since a crest can make old and new stages not directly comparable.

Highest crests

Highest listed crests, St. Johns River at Astor
1Oct 12, 20244.81+2.51Major—
2Oct 1, 20224.71+2.41Major—
3Nov 10, 20224.52+2.22Major—
4Oct 6, 20174.46+2.16Major—
5Sep 13, 20174.43+2.13Major—
6Sep 26, 20044.18+1.88Major—
7Oct 20, 20174.03+1.73Major—
8Sep 17, 20013.90+1.60Moderate—
9Sep 25, 20083.82+1.52Moderate—
10Oct 12, 20253.64+1.34Moderate—
11Oct 12, 20163.49+1.19Moderate—
12Nov 21, 19943.48+1.18Moderate—
13Sep 23, 20203.46+1.16Moderate—
14Sep 16, 20243.45+1.15Moderate—
15Oct 8, 20153.29+0.99Moderate—
16Oct 17, 19943.26+0.96Moderate—
17Oct 15, 19953.24+0.94Moderate—
18Oct 4, 20233.13+0.83Moderate—
19Sep 10, 19953.10+0.80Moderate—
20Oct 6, 20203.10+0.80Moderate12,755
21Sep 14, 20253.10+0.80Moderate—
22Sep 10, 20053.08+0.78Moderate—
23Nov 18, 20233.04+0.74Moderate—
24Dec 18, 20233.01+0.71Moderate—
25Mar 2, 19982.87+0.57Minor—
26Oct 7, 20052.86+0.56Minor—
27Oct 17, 19992.85+0.55Minor—
28Sep 26, 20262.70+0.40Minor—
29Oct 14, 19962.58+0.28Minor—
30May 28, 20232.47+0.17Minor—
31Feb 8, 20242.47+0.17Minor—
32Jun 6, 20232.37+0.07Minor—

The worst floods along the St. Johns River

For this gauge's highest crests, the other gauges on the St. Johns River that crested above flood stage within a week.

October 12, 2024: 4.81 ft here, major flooding

October 1, 2022: 4.71 ft here, major flooding

November 10, 2022: 4.52 ft here, major flooding

Gauges on the St. Johns River

Flood gauges sharing the river's name, linked within 80 miles of one another.

Flood gauges on the St. Johns River
Lake HarneyFL8.012.67 ft, Oct 3, 20227
Astor this gaugeFL2.34.81 ft, Oct 12, 20247
Buckman Bridge (I-295) (in MHHW)FL1.55.20 ft, Sep 11, 20177
Buckman Bridge (I-295) (in MHHW)FL1.55.20 ft, Sep 11, 20175
Buffalo Bluff (in MHHW)FL1.53.36 ft, Sep 29, 20223
Dames Point Bridge (I-295) (in MHHW)FL1.63.67 ft, Sep 11, 20172
Dames Point Bridge (I-295) (in MHHW)FL1.63.67 ft, Sep 11, 20172
Jacksonville (in MHHW)FL1.56.00 ft, Oct 12, 18467
Main Street Bridge (in MHHW)FL1.56.00 ft, Oct 12, 18467
Mayport (in MHHW)FL1.83.41 ft, Nov 10, 20221
Racy Point (in MHHW)FL1.54.41 ft, Oct 7, 20162
Racy Point (in MHHW)FL1.54.41 ft, Oct 7, 20164
Shands BridgeFL2.03.66 ft, Oct 7, 20161
Shands Bridge (in MHHW)FL1.53.66 ft, Oct 7, 20164
CocoaFL16.017.43 ft, Oct 6, 20172
DelandFL4.06.33 ft, Oct 11, 20225
SanfordFL5.58.96 ft, Oct 9, 20221

Other gauges in Lake County

Flood gauges in Lake County
Deland4.06.33 ft, Oct 11, 20225

Lake County: every hazard · River floods across the country · Florida

NOAA National Water Prediction Service, gauge ASTF1, retrieved October 30, 2026. Stages in feet on the gauge's own datum, not elevation. Crests are as the National Weather Service lists them; preliminary values may be revised.