Tide Station (HGX) at Rollover Pass

Highest listed crest 5.03 ftFlood stage 3.5 ft5 crests since 2021

The Tide Station (HGX) at Rollover Pass crested at major flood stage 1 time among the 5 crests the National Weather Service lists from 2021 to 2021. The highest, 5.03 ft on September 14, 2021, was major flooding, 1.53 feet above flood stage.

The gauge

Highest listed crest
5.03 ft
September 14, 2021
Flood stage
3.5 ft
Major flooding from 5.0 ft
Crests at major
1
248th of 370 gauges in Texas
Most recent flood crest
October 27, 2021
3.95 ft, minor flooding
Location
Galveston County
Texas
Identifiers
NWS RLOT2
No USGS station

Flood stages

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

Flood categories, Tide Station (HGX) at Rollover Pass
Action stage3.30—The level at which the NWS or its partners begin to take action
Flood stage (minor)3.54Oct 27, 2021Minimal or no property damage, but possibly some public threat
Moderate flood stage4.50—Some inundation of structures and roads near the stream
Major flood stage5.01Sep 14, 2021Extensive inundation of structures and roads

Every listed crest

5 crests from 2021 to 2021. Filled: at or above flood stage. Hover a crest for its date and stage.

Listed crests at the Tide Station (HGX) at Rollover Pass, 2021 to 2021 3.544.555.5ft Flood stage 3.5 ftMajor 5.0 ft Mar 25, 2021: 3.59 ft, minor floodingSep 14, 2021: 5.03 ft, major floodingSep 29, 2021: 3.80 ft, minor floodingOct 11, 2021: 3.99 ft, minor floodingOct 27, 2021: 3.95 ft, minor flooding Highest, 5.03 ft, Sep 14, 2021 20252030
  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, Tide Station (HGX) at Rollover Pass
1Sep 14, 20215.03+1.53Major—
2Oct 11, 20213.99+0.49Minor—
3Oct 27, 20213.95+0.45Minor—
4Sep 29, 20213.80+0.30Minor—
5Mar 25, 20213.59+0.09Minor—

Other gauges in Galveston County

Flood gauges in Galveston County
Friendswood12.024.25 ft, Aug 29, 20171
Tide Station (HGX) at Galveston Bay Entrance North Jetty3.54.97 ft, Sep 14, 20211
Tide Station (HGX) at Galveston Railroad Bridge3.55.04 ft, Sep 14, 20211
Tide Station (HGX) at High Island4.04.22 ft, Sep 14, 20210
Tide Station (HGX) at NOS Station at Pier 21 Galveston4.04.71 ft, Sep 14, 20210
Tide Station (HGX) at San Leon4.05.55 ft, Sep 14, 20211
Tide Station (HGX) at San Luis Pass3.55.60 ft, Sep 14, 20211

Galveston County: every hazard · River floods across the country · Texas

NOAA National Water Prediction Service, gauge RLOT2, 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.