Weather Alerts for Texas

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Current Alerts for Weimar, TX: Dense Fog Advisory

1. Dense Fog Advisory for: Atascosa; Bandera; Bastrop; Bexar; Blanco; Caldwell; Comal; De Witt; Fayette; Frio; Gonzales; Guadalupe; Hays; Karnes; Kendall; Lavaca; Lee; Medina; Travis; Uvalde; Williamson; Wilson

2. Dense Fog Advisory for: Austin; Chambers; Coastal Brazoria; Coastal Galveston; Coastal Harris; Coastal Jackson; Coastal Matagorda; Colorado; Fort Bend; Inland Brazoria; Inland Galveston; Inland Harris; Inland Jackson; Inland Matagorda; Matagorda Islands; Northern Liberty; Southern Liberty; Waller; Wharton

3. Dense Fog Advisory for: Brazoria Islands; Galveston Island and Bolivar Peninsula

4. Dense Fog Advisory for: Hemphill; Lipscomb; Ochiltree; Roberts

5. Dense Fog Advisory for: Jefferson; Orange

6. Flood Warning for: Anderson; Cherokee; Houston

7. Flood Warning for: Anderson; Cherokee; Houston; Trinity

8. Flood Warning for: Cass; Harrison; Marion

9. Flood Warning for: Cass; Marion

10. Flood Warning for: Franklin; Morris; Titus

11. Flood Warning for: Gregg; Harrison; Marion; Upshur

12. Flood Warning for: Gregg; Rusk

13. Flood Warning for: Gregg; Smith; Upshur; Wood

14. Flood Warning for: Henderson; Navarro

15. Flood Warning for: Nacogdoches; Rusk; San Augustine; Shelby

16. Flood Warning for: Smith; Upshur; Wood

17. Flood Warning for: Smith; Wood

18. Special Weather Statement for: Aransas Islands; Bee; Calhoun Islands; Coastal Aransas; Coastal Calhoun; Coastal Kleberg; Coastal Nueces; Coastal Refugio; Coastal San Patricio; Goliad; Inland Calhoun; Inland Kleberg; Inland Nueces; Inland Refugio; Inland San Patricio; Jim Wells; Kleberg Islands; Live Oak; Nueces Islands; Victoria

19. Special Weather Statement for: Brooks; Jim Hogg; Zapata

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Current U.S. National Radar--Current

The Current National Weather Radar is shown below with a UTC Time (subtract 5 hours from UTC to get Eastern Time).

Current U.S. National Radar

National Weather Forecast--Current

The Current National Weather Forecast and National Weather Map are shown below.

Today's National Weather Map

National Weather Forecast for Tomorrow

Tomorrow National Weather Forecast and Tomorrow National Weather Map are show below.

Tomorrows National Weather Map

North America Water Vapor (Moisture)

This map shows recent moisture content over North America. Bright and colored areas show high moisture (ie, clouds); brown indicates very little moisture present; black indicates no moisture.

North American Water Vapor Map

Weather Topic: What are Shelf Clouds?

Home - Education - Cloud Types - Shelf Clouds

Shelf Clouds Next Topic: Sleet

A shelf cloud is similar to a wall cloud, but forms at the front of a storm cloud, instead of at the rear, where wall clouds form.

A shelf cloud is caused by a series of events set into motion by the advancing storm; first, cool air settles along the ground where precipitation has just fallen. As the cool air is brought in, the warmer air is displaced, and rises above it, because it is less dense. When the warmer air reaches the bottom of the storm cloud, it begins to cool again, and the resulting condensation is a visible shelf cloud.

Next Topic: Sleet

Weather Topic: What is Snow?

Home - Education - Precipitation - Snow

Snow Next Topic: Stratocumulus Clouds

Snow is precipitation taking the form of ice crystals. Each ice crystal, or snowflake, has unique characteristics, but all of them grow in a hexagonal structure. Snowfall can last for sustained periods of time and result in significant buildup of snow on the ground.

On the earth's surface, snow starts out light and powdery, but as it begins to melt it tends to become more granular, producing small bits of ice which have the consistency of sand. After several cycles of melting and freezing, snow can become very dense and ice-like, commonly known as snow pack.

Next Topic: Stratocumulus Clouds