Check the Weather Before You Go!



Weather Forecast Information


  UV Index:

   The ultraviolet index or UV Index is an international standard measurement of the strength of ultraviolet (UV) radiation from the sun at a particular place and time.

  UV Index Rating (0-10)

  • 0-2 indicates little danger. Most people can stay outside one hour without burning.
  • 3-4 is low risk. An average person can withstand a half hour without burning.
  • 5-6 is a moderate risk. Twenty to Thirty minutes is the limit in noon sun.
  • 7-8 is high risk. The sun should be avoided from 10am to 4pm. Thirteen to twenty minutes of exposure can lead to burning.
  • 9-10 is very high risk. Burning can occur in less than thirteen minutes.
                ***It is always a good idea to wear sunblock no matter how high or low the UV Index is!


  Wind / Wind Gusts:

Wind is usually measured in knots (nautical miles per hour). 1 Knot (kt) = 1.15 Mph

    *If winds are over 20 Kts there will most likely not be any Rentals*


Check the DFW Lake Levels

How to understand the water Lake Levels:

  • Grapevine Lake averages at about 535 ft above ocean level.
  • If you check this the Lake Levels website and scroll down to Grapevine Lake.
  • It will show you what the current water level is vs. the average water level.
  • The number in the third box (difference) shows the water (in feet) above or below.

Lonestar Adventure Sports

Grapevine Approved Partner