Appendix C - Links to Resources and Websites


Guidance and Modeling Resources
Extra-Tropical Storm Surge Guidance:
Flash Flood Analysis:
HDSC: Rainfall Frequency:
Probabilistic Extra-Tropical Storm Surge Guidance: map&datm=datum&sorc=mean
Significant River Flood Outlook:

GIS and Other Data Resources
Hydro Navigation Survey Table:
TXDOT Datasets (Regional):
FEMA Estimated Base Flood Elevation:
National Hydrography Dataset:
NHC: Storm Surge Inundation Graphics:
NOAA Hydro Navigation Survey Graphic:
TNRIS LIDAR Shapefile:
TxDOT Data:

Weather Prediction Resources
Advanced Hydrologic Prediction Service:
NDFD: Mosaic of NWS Forecasts: /
NHC: Probabilistic Storm Surge:
Observed Daily Precipitation Estimates:
Rainfall Ensemble Hydrologic river forecast:
River forecast center data:
Weather Prediction Center:
WPC: Excessive Rainfall Forecasts:
WPC: Significant Weather Graphics:


Department of Homeland Security:
National Hurricane Center:
National Hurricane Center GIS Portal:
National Oceanic and Atmospheric Administration:
National Weather Service GIS Portal:
Office of Water Prediction:
United States Army Corps of Engineering:
USGS National Map web services:

Lamar University Economic Recovery and Resiliency Program:
Texas Division of Emergency Management (TDEM):
Texas Department of Transportation:
Texas Water Development Board:
TNRIS LIDAR Launch Page:
University of Texas Center for Water and Environment:

American Red Cross: 


Two already developed web resources for Southeast Texas are STAN and R.A.I.N. A brief summary of these two resources follows.

The Southeast Texas Regional Alerting and Information Network (R.A.I.N.) is a public service designed to provide information to the SE Texas region during threatening weather conditions. The project was developed out of a Five-County regional coalition headed by County Judges from Hardin, Jasper, Jefferson, Newton, and Orange Counties after hurricane Harvey in 2017. The RAIN website was designed by OneRain®, Incorporated. The RAIN system displays rainfall, streamflow, river (stream) level, and reservoir levels in major streams, bayous, and reservoirs compiled from many data sources which include the United States Geological Survey (USGS) and the National Weather Service (NWS). The system relies on a network of river and reservoir gaging stations throughout the Five-County area of Hardin, Jasper, Jefferson, Newton, and Orange Counties as well as the Sabine and Neches River Basins in the Southeast Texas Region. The total number of sensors shown on the map for the region is forty-two (42). Thirteen (13) is within the Neches river basin and twenty-five (25) in the Sabine river basin. The remaining four (4) are outside both basins (Other). Southeast Texas Regional Alerting and Information Network website can be accessed via . Table C1 shows total number of sensor(s) currently providing information on various measurable criteria on various basins.

Criteria Neches R. Basin Sabine R. Basin Other
Air Temperature 1 2 3
Barometric Pressure -- 2 1
Flow Velocity 2 -- --
Flow Volume 8 7 --
Lake Storage Volume -- 1 --
Rain Accumulation 1 8 2
Rain Increment (15 min - 7 days) 7 12 2
Relative Humidity 1 2 2
Reservoir Elevation 2 1 --
Stage 8 23 1
Tide Elevation 1 -- 1
Water Temperature -- -- 1
Wind Direction 4 2 3
Wind Speed 4 2 3


STAN was developed and sponsored by the Local Emergency Planning Committees of Jefferson, Orange and Hardin Counties, in partnership with the Industry of Southeast Texas, the Southeast Texas Regional Planning Commission and local media. STAN is a messaging and notification system that gives industrial companies and emergency management officials the ability to improve emergency alert and warning systems. It also uses geographic calling zones and is able to alert specific areas that are affected by an emergency. (STAN)