Moderate

Possible threat to life or property

Louisiana Moderate Heat Advisory | Effective 08/18/2026 10:55

* WHAT...For the first Heat Advisory, heat index values up to 110. For the second Heat Advisory, heat index values up to 110 expected. * WHERE...Portions of central, south central, and southwest Louisiana. * WHEN...For the first Heat Advisory, until 8 PM CDT this evening. For the second Heat Advisory, from 11 AM to 8 PM CDT Wednesday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. Drink plenty of fluids, stay in an air-conditioned room, stay out of

Florida Moderate Special Weather Statement | Effective 08/18/2026 10:34

At 132 PM EDT, Doppler radar was tracking a strong thunderstorm over Union Park, or over University Of Central Florida, moving southeast at 15 mph. HAZARD...Wind gusts up to 50 mph. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Locations impacted include... Orlando, Altamonte Springs, Oviedo, Winter Springs, and Winter Park. If outdoors, consider seeking shelter inside a building. Torrential rainfall is also occurring with this storm and may lead to

Texas Moderate Heat Advisory | Effective 08/18/2026 10:38

* WHAT...For the Heat Advisory this afternoon and again Wednesday afternoon, high temperatures around 105 degrees expected. Heat index values may also reach 105 at some locations. * WHERE...Callahan, Fisher, Haskell, Jones, Nolan, Shackelford, Taylor, and Throckmorton Counties. * WHEN...The Heat Advisory today is in effect from 1 PM until 7 PM. The Heat Advisory for Wednesday is in effect from 1 PM to 7 PM CDT. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.

Texas Moderate Heat Advisory | Effective 08/18/2026 10:38

* WHAT...For the Heat Advisory this afternoon and again Wednesday afternoon, high temperatures around 105 degrees expected. Heat index values may also reach 105 at some locations. * WHERE...Callahan, Fisher, Haskell, Jones, Nolan, Shackelford, Taylor, and Throckmorton Counties. * WHEN...The Heat Advisory today is in effect from 1 PM until 7 PM. The Heat Advisory for Wednesday is in effect from 1 PM to 7 PM CDT. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.

Texas Moderate Heat Advisory | Effective 08/18/2026 10:17

* WHAT...Heat index values up to 109 and air temperatures up to 104. * WHERE...Bosque, Falls, Freestone, Hill, Limestone, McLennan, Leon, and Robertson Counties. * WHEN...Until 8 PM CDT Wednesday. * IMPACTS...Hot temperatures and high humidity will increase the risk for heat-related illnesses to occur, particularly for those working or participating in outdoor activities. Take extra precautions when outside by staying hydrated, wearing lightweight and loose fitting clothing, and limiting strenuous

Texas Moderate Heat Advisory | Effective 08/18/2026 10:17

* WHAT...Heat index values up to 109. * WHERE...Navarro, Anderson, and Henderson Counties. * WHEN...Until 8 PM CDT Wednesday. * IMPACTS...Hot temperatures and high humidity will increase the risk for heat-related illnesses to occur, particularly for those working or participating in outdoor activities. Take extra precautions when outside by staying hydrated, wearing lightweight and loose fitting clothing, and limiting strenuous activities to the early morning or evening. Check up on relatives and

Texas Moderate Heat Advisory | Effective 08/18/2026 10:17

* WHAT...Heat index values up to 107 and air temperatures up to 103. * WHERE...Bell, Comanche, Coryell, Hamilton, Lampasas, Mills, and Milam Counties. * WHEN...Until 8 PM CDT Wednesday. * IMPACTS...Hot temperatures and high humidity will increase the risk for heat-related illnesses to occur, particularly for those working or participating in outdoor activities. Take extra precautions when outside by staying hydrated, wearing lightweight and loose fitting clothing, and limiting strenuous

Massachusetts Moderate Rip Current Statement | Effective 08/18/2026 10:26

* WHAT...Dangerous rip currents. * WHERE...The entire east coast areas of Massachusetts as well as Cape Cod and Nantucket. * WHEN...Until 8 PM EDT this evening. * IMPACTS...Rip currents can sweep even the best swimmers away from shore into deeper water. Swim near a lifeguard. If caught in a rip current, relax and float. Don't swim against the current. If able, swim in a direction following the shoreline. If unable to escape, face the shore and call or wave for help.

Arkansas, Oklahoma Moderate Heat Advisory | Effective 08/18/2026 09:45

* WHAT...Heat index values up to 108 expected. * WHERE...Portions of northwest and west central Arkansas and east central and northeast Oklahoma. * WHEN...Until 9 PM CDT Wednesday. * IMPACTS...Heat related illnesses are possible especially impacting those not acclimated to the conditions or those performing strenuous activities. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning

Arkansas Moderate Heat Advisory | Effective 08/18/2026 09:46

* WHAT...Heat index values up to 109 expected. * WHERE...Portions of central, north central, southeast, southwest, and western Arkansas. * WHEN...For the first Heat Advisory, until 8 PM CDT this evening. For the second Heat Advisory, from 11 AM to 8 PM CDT Wednesday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.
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