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A Heat Advisory is issued by the National Weather Service of the United States.. Local offices often have their own criteria. High values of the heat index are caused by temperatures being significantly above normal and high humidities, and such high levels can pose a threat to human life through conditions such as heat stroke.
URGENT - WEATHER MESSAGE National Weather Service Norman OK 401 AM CDT Wed Jul 18 2018 ...Hot Weather Continues Through The Work Week... .Today will be another hot day with even hotter conditions expected on Thursday and Friday afternoons. OKZ007-008-012-013-018>020-023>048-050>052-TXZ083>090-181715- /O.NEW.KOUN.HT.Y.0013.180718T1700Z-180721T0000Z/ Grant-Kay-Garfield-Noble-Kingfisher-Logan-Payne-Caddo-Canadian- Oklahoma-Lincoln-Grady-McClain-Cleveland-Pottawatomie-Seminole- Hughes-Harmon-Greer-Kiowa-Jackson-Tillman-Comanche-Stephens- Garvin-Murray-Pontotoc-Coal-Cotton-Jefferson-Carter-Johnston- Atoka-Love-Marshall-Bryan-Hardeman-Foard-Wilbarger-Wichita-Knox- Baylor-Archer-Clay- Including the cities of Medford, Pond Creek, Lamont, Wakita, Ponca City, Blackwell, Enid, Perry, Kingfisher, Hennessey, Okarche, Guthrie, Stillwater, Anadarko, Hinton, Yukon, Concho, El Reno, Mustang, Oklahoma City, Chandler, Stroud, Prague, Meeker, Davenport, Wellston, Chickasha, Tuttle, Purcell, Newcastle, Blanchard, Norman, Moore, Shawnee, Seminole, Wewoka, Holdenville, Wetumka, Hollis, Mangum, Granite, Hobart, Snyder, Altus, Frederick, Lawton, Duncan, Pauls Valley, Lindsay, Wynnewood, Sulphur, Davis, Ada, Coalgate, Walters, Temple, Waurika, Ringling, Ryan, Ardmore, Tishomingo, Atoka, Marietta, Thackerville, Madill, Kingston, Durant, Quanah, Crowell, Vernon, Sheppard AFB, Wichita Falls, Munday, Knox City, Seymour, Archer City, Holliday, Lakeside City, Scotland, and Henrietta 401 AM CDT Wed Jul 18 2018 ...HEAT ADVISORY IN EFFECT FROM NOON TODAY TO 7 PM CDT FRIDAY... The National Weather Service in Norman has issued a Heat Advisory, which is in effect from noon today to 7 PM CDT Friday. * TEMPERATURES AND HEAT INDEX VALUES...Temperatures will reach 105 to 110 across western north Texas and southwest Oklahoma, with heat index values of 105 to 110 across north central, central and south central Oklahoma. Low temperatures will only fall into the mid 70s to lower 80s overnight. * TIMING...Through Friday afternoon. * IMPACTS...The heat and humidity may cause heat stress during outdoor exertion or extended exposure. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Heat Advisory means that a period of hot temperatures is expected. The combination of hot temperatures and high humidity will combine to create a situation in which heat illnesses are possible. Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. && $$