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Greens Bayou at Houston, TX (GBHT2)


Data Type




Inundation Levels
NAVD88 Stage

Record Crest: 67.81 ft
67.4 67.4
66.4 66.4
65.4 65.4
64.4 64.4
63.4 63.4
62.4 62.4
61.4 61.4
60.4 60.4

Major Flooding Begins

59.4 59.4
58.4 58.4
57.4 57.4

Moderate Flooding Begins

56.4 56.4
55.4 55.4

Minor Flooding Begins

54.4 54.4
53.4 53.4
52.4 52.4
* = Extended rating
Weather Forecast Office Houston/Galveston, TX West Gulf River Forecast Center

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Current Stage:
38.9 ft at 09/23/2014 01:30:00 UTC
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Inundation Legend Inundation Legend
USGS Gauge Location Gauge Location

Latitude/Longitude Disclaimer: The gauge location shown in the above map is the approximate location based on the latitude/longitude coordinates provided to the NWS by the gauge owner.

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Map Overlays

Flood Categories (in feet)
Major Flood Stage:59.5
Moderate Flood Stage:56.5
Flood Stage:55
Action Stage:52

Historical Crests
(1) 67.81 ft on 06/09/2001
(2) 66.04 ft on 06/27/1989
(3) 66.00 ft on 10/25/1984
(4) 65.89 ft on 05/18/1989
(5) 65.75 ft on 09/21/1961
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(P): Preliminary values subject to further review.

Low Water Records
(1) 44.30 ft on 06/06/1975

Graphical representation of flood inundation for NWS flood categories are based on steady state hydraulic modeling of water surface elevations for incremented discharges. Map shows approximate inundation areas for given water surface elevations and should not be used for navigation or permitting or other legal purposes, but strictly as a planning reference tool.

Extended rating:
Rating Curve Extension - The Rating Curve Extension is calculated by using either a linear, logarithmic, or hydraulic technique to extend the rating curve above the currently established relationship between stage and flow.

Flood Impacts Collapse
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61 Major lowland flooding continues as homes on Sequoia Bend Drive begin flooding with widespread flooding of homes on McDermott Drive.
60 Major lowland flooding continues as homes on McDermott Drive begin flooding.
59.5 At levels above 59.5 feet major lowland flooding begins as home in Sequoia Estates subdiviision begin flooding. Homestead Road south of the channel in innundated with one to two feet of water and water is several feet deep on the south bound feeder of U.S. Highway 59.
56.5 At levels above 56.5 feet moderate lowland flooding begins as streets in the Sequoia Estates subdivision and west of JFK Boulevard become innundated. The south bound feeder road of U.S Highway 59 is under close to one foot of water.
55 At levels above 55 feet minor lowland flooding begins as water escapes the north side of the upstream bank at U.S. Highway 59. Water is close to inundating the south bound feeder road south of the channel.
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Page last modified: 15-Jul-2014 6:27 PM
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Graphical representation of flood inundation for NWS flood categories are based on steady state hydraulic modeling of water surface elevations for incremented discharges. Map shows approximate inundation areas for given water surface elevations and should not be used for navigation or permitting or other legal purposes, but strictly as a planning reference tool.