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Displaying AFOS PIL: AFDTSA Product Timestamp: 2019-07-17 08:38 UTC
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636 FXUS64 KTSA 170838 AFDTSA Area Forecast Discussion National Weather Service Tulsa OK 338 AM CDT Wed Jul 17 2019 .DISCUSSION... Clearly the main forecast issue in the short term is the dangerous heat and humidity that will impact a large portion of the forecast area today, and to some extent through the weekend. The good news is that it does appear a cold front will put an end to the excessively hot weather by early next week for at least a few days. Axis of flat-out disgusting dew points extends from west central AR through much of northeast OK early this morning and in general the highest dew points should shift a bit north through the day. While it appears the dew points could trend down several degrees across far southeast OK today, it is questionable whether lower Arkansas valley will see a significant change and as such, will expand the Excessive Heat Warning today to include this area, including Ft. Smith. Additional headlines will be needed Thursday and perhaps Friday, however the dew points are expected to trend down with time and will not issue headlines for later forecast periods at this time. While temperatures will remain hot through the weekend, heat index should be less a factor by then. As mentioned earlier, the upper ridge is expected and shift west and amplify next week, with mid range models all depicting a frontal passage around Monday. The net result will be an increase in precip chances with temperatures falling below normal for a couple of days. && .PRELIMINARY POINT TEMPS/POPS... TUL 98 80 97 80 / 0 0 0 0 FSM 96 79 96 77 / 0 0 0 0 MLC 95 76 94 76 / 0 0 0 0 BVO 97 78 97 78 / 0 0 0 0 FYV 92 73 92 72 / 10 0 0 0 BYV 93 73 94 72 / 10 0 0 0 MKO 96 76 95 76 / 0 0 0 0 MIO 96 76 95 76 / 0 0 0 0 F10 96 77 96 76 / 0 0 0 0 HHW 95 76 92 75 / 0 0 0 0 && .TSA WATCHES/WARNINGS/ADVISORIES... OK...Heat Advisory from 11 AM this morning to 9 PM CDT this evening for OKZ049-053-063-068-069-071-073-075. Excessive Heat Warning from 11 AM this morning to 9 PM CDT this evening for OKZ054>062-064>067-070-072-074-076. AR...Heat Advisory from 11 AM this morning to 9 PM CDT this evening for ARZ001-002-010-011. Excessive Heat Warning from 11 AM this morning to 9 PM CDT this evening for ARZ019-020-029. && $$ SHORT TERM...30 LONG TERM....14