Forecast

National Oceanic and Atmospheric Administration's (NOAA)
National Weather Service (NWS)

• Houston Forecast
  forecast.weather.gov/MapClick.php?CityName=
  Houston&state=TX&site=HGX&lat=29.7687&lon=-95.3867
  
  
• Warnings and Forecast
  
  • Houston/Galveston
    www.srh.noaa.gov/hgx/
  • West Gulf River Forcast Center -includes precipation forecast
    www.srh.noaa.gov/wgrfc/HMDmain.php
  
  
• Z Time or Coordinated Universal Time
  www.srh.noaa.gov/jetstream/synoptic/time.htm
  Often, predictative maps use Z time. To convert Z time to CST, subtract 6 hours. During Daylight Savings(Mar-Oct), subtract 5 hours. For example:
  

• 00Z = 6:00 pm CST  the day before
• 06Z = 12:00 am or midnight CST
• 12Z = 6:00 am CST
• 18Z = 12:00 pm or noon CST
  
  
• Climate Prediction Houston/Galveston
  Long-range forecasts and climate assessment
  www.nws.noaa.gov/climate/climate_prediction.php?wfo=hgx
  

Flood

Harris County Flood Control District: Flood Preparedness
Site has Learning Center where watersheds, flood plains and drainage networks are explained.
www.hcfcd.org/famfloodprepare.html 

Interactive Rainfall Map
www.harriscountyfws.org
Check local bayou and stream water levels during and after rain. Readings updated periodically. Options to view other areas, like the City of Pearland or City of Houston, or you can search for data by entering a specific address.

Example:  B104 Horsepen Bayou @ Bay Area Blvd
http://www.harriscountyfws.org/GageDetail.aspx?G=250&R=1&Span=7
Stream Elevation is the default view. Click the Rainfall tab for rainfall information.

Go to www.harriscountyfws.org to select other locations.

National Weather Service: River Observations
http://water.weather.gov/ahps2/index.php?wfo=hgx
Current river flood information and prediction graphic.

Hurricane

NWS: National Hurricane Center
Typically updated 4 times a day.
www.nhc.noaa.gov

Local Evacuation Zones by Hurricane Category
html.click2weather.com/sh/idi/weather/hurricanes/Houston/index.html

Harris County Homeland Security and Emergency Management
Good hurricane links (scroll to the bottom of the page) with posts in the event of a hurricane.
www.hcoem.org

Hurricane Evacuation Map by Zip Code (pdf)
Zip-Zones, Coastal, A, B, C

Houston Chronicle's SciGuy Blog with Eric Berger
During hurricane season ( June 1 - November 1), Eric Berger discusses potential hurricanes and tropical storms that may affect the Houston/Galveston area and the greater Texas coast.
blogs.chron.com/sciguy

Wunderground's Dr. Jeff Masters' Blog and Storm Advisories
Wunderground is a weather info site accessed by people from all areas. Tropical information is readily available and includes model tracking, satellite and radar maps. Be sure to read Dr. Masters' discussion (on the right side of the page).
www.wunderground.com/tropical

Hurricane Storm Surge

Texas and Houston Government Websites

Harris County Homeland Security and Emergency Management
Includes links to flood warning/water level maps, latest/breaking news, USGS water level maps for Houston, National Weather Service, Ozone Levels, Traffic Map, School Alerts, Amber Alerts, OEM Neighbors and The City of Houston 311 Service Helpline.
www.hcoem.org

City of Houston Office of Emergency Management
www.houstonoem.org
City of Houston
www.houstontx.gov

• Current Conditions - Info on weather, traffic, climate sensors, webcams
  www.gcoem.org/index.php?option=com_content&task=view&id=29&Itemid=39
• Planning and Preparedness > Hurricane
  www.gcoem.org/index.php?option=com_content&task=view&id=25&Itemid=35
• Links > Local Government - Galveston county city government websites. Most cities, like the City of League City, have links for city emergency management.
  http://www.gcoem.org/index.php?option=com_weblinks&catid=2&Itemid=23

World Disaster Information