Heat Advisory issued June 19 at 8:51PM CDT until June 20 at 7:00PM CDT by NWS Houston - Galveston Austin; Brazos; Burleson; Chambers; Coastal Brazoria; Coastal Galveston; Coastal Harris; Coastal Jackson; Coastal Matagorda; Colorado; Fort Bend; Galveston Island and Bolivar Peninsula; Grimes; Houston; Inland Brazoria; Inland Galveston; Inland Harris; Inland Jackson; Inland Matagorda; Madison; Montgomery; Northern Liberty; Polk; San Jacinto; Southern Liberty; Trinity; Walker; Waller; Washington; Wharton ...Heat Advisory In Effect For Thursday... .Unusually high moisture will stream into the region tonight and Thursday. A ridge of high pressure over the area will continue to keep it well above normal for temperatures and will combine with the moisture to make the heat dangerous. ...HEAT ADVISORY IN EFFECT FROM 9 AM TO 7 PM CDT THURSDAY... The National Weather Service in Houston/Galveston has issued a Heat Advisory, which is in effect from 9 AM to 7 PM CDT Thursday. * EVENT...Hotter weather on tap for Thursday. Heat indices will climb very quickly Thursday morning quickly surpassing 100 and by the afternoon hours 106 to 111 degree heat index readings will be common. * TIMING...9 am near the coast quickly expanding inland and lasting through 7 pm. Overnight temperatures will only fall into the upper 70s to lower 80s both tonight and Thursday night. * IMPACT...Dangerous heat possible Thursday with little recovery overnight. Avoid over exposure as this could lead to heat exhaustion or even heat stroke. Take extra precautions if you work or spend time outside. When possible...reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear light weight and loose fitting clothing when possible and drink plenty of water. To reduce risk during outdoor work...the occupational safety and health administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency - call 911. Each year...a number of fatalities occur nationwide due to children accidentally being left in vehicles during the summer months. In the past dozen years...500 children have died due to hyperthermia after being left in or gaining access to cars. Never leave children or pets unattended in a vehicle not even for a minute. Remember...beat the heat...check the backseat.