Advanced Hydrologic Prediction Service: Houston/Galveston: Colorado River at Wharton
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Advanced Hydrologic Prediction Service

Colorado River at Wharton, TX (WHAT2)

Data Type

Inundation Levels
NAVD88

102.450.0
101.449.0
100.448.0
99.447.0
98.446.0
97.445.0
96.444.0

Major Flooding Begins

95.443.0
94.442.0

Moderate Flooding Begins

93.441.0
92.440.0

Flooding Begins

91.439.0
90.438.0
89.437.0
88.436.0
87.435.0
86.434.0
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Weather Forecast Office Houston/Galveston, TX West Gulf River Forecast Center

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Hydrograph River at a Glance Download Inundation
Mapping		 Weekly Chance of
Exceeding Levels		 Chance of Exceeding Levels
During Entire Period
Image Type:
Current Stage: 13.96 ft at 17:15 UTC 02/09
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NAVD88: N/A ft
Stage: N/A ft

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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.

North Arrow Flood Categories (in feet)
Major Flood Stage:43
Moderate Flood Stage:41
Flood Stage:39
Action Stage:20
Below Flood Stage:

USGS Gauge Location USGS Gauge Location

Extent of Inundation Study Boundaries Extent of Inundation Study Boundaries

Historical Crests
(1) 51.90 ft on 12/08/1913
(2) 48.99 ft on 07/03/1940
(3) 48.73 ft on 10/23/1998
(4) 48.30 ft on 11/26/2004
(5) 45.31 ft on 12/27/1991
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Impacts Collapse
45.3 Many homes in the west part of Wharton have up to 2 to 3 feet the school in southwest Wharton is isolated and flooded.
44.0 The school in southwest Wharton is isolated and many homes in the west part Wharton are flooded.
43.0 Major lowland flooding begins as the slab elevations of lowest homes in the west part of Wharton are reached with the school in southwest Wharton close to being isolated.
41.5 The schoolyard in southwest Wharton is flooded.
41.0 Moderate lowland flooding begins with the schoolyard in southwest Wharton threatened.
39.0 Minor lowland flooding begins.

Other Data Sources:
Corps of Engineers (COE) Info for Wharton
U.S. Geological Survey (USGS) Data and Site Info for Wharton

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The National Weather Service prepares its forecasts and other services in collaboration with agencies like the US Geological Survey, US Bureau of Reclamation, US Army Corps of Engineers, Natural Resource Conservation Service, National Park Service, ALERT Users Group, Bureau of Indian Affairs, and many state and local emergency managers across the country. For details, please click here.

NWS Information
National Weather Service
Houston/Galveston Weather Forecast Office
1353 FM 646, Suite 202
Dickinson, TX 77539
(281) 337-5074
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