574 FXUS64 KTSA 052315 AFDTSAArea Forecast Discussion National Weather Service Tulsa OK 615 PM CDT Sun Oct 5 2025
...New AVIATION...
.KEY MESSAGES... Updated at 1248 PM CDT Sun Oct 5 2025
- Mostly dry weather with above normal temperatures into Monday.
- Limited grassland fire weather danger west of Highway 75 and south of U.S. Highway 412 this afternoon.
- Low shower and thunderstorm chances exist Monday and Tuesday, along with slightly cooler temperatures Tuesday and Wednesday.
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.SHORT TERM... (Through tonight ) Issued at 1248 PM CDT Sun Oct 5 2025
Eastern Oklahoma and northwest Arkansas resided between a ridge of high pressure centered over the East Coast and a parent mid/upper level trof oriented from the Mountain West through the Northern Plains this afternoon. In response, southerly winds gusting 15 to near 30 mph were observed over northeast Oklahoma, with gusts of 5 to 20 mph over southeast Oklahoma and wester Arkansas. These winds along with ongoing above seasonal average temperatures and relative humidity expected to fall to around 35 percent west of Highway 75 in northeast Oklahoma will aid in limited grassland fire weather danger through late afternoon. Fire weather concerns west of Highway 75 should improve this evening with weakening winds and recovering humidity.
This evening and overnight tonight, southerly low level flow around the western periphery of the high pressure ridge will advect moisture back into the region. At the same time, a shortwave within the parent mid/upper level trof is expected to over the Rocky Mountains. This will help to slowly push a weak cold front, currently positioned from New Mexico through the Central Plains and into western Minnesota, toward the region. The combination of these features will increase cloud cover over much of the CWA overnight tonight into Monday with low temps in the 60s forecast.
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.LONG TERM... (Tomorrow through Sunday) Issued at 1248 PM CDT Sun Oct 5 2025
The weak cold front is progged to remain just northwest of the CWA during the day Monday before the shortwave and parent mid/upper level trof moves eastward through the Plains Monday night/Tuesday. Ahead of the boundary, increasing moisture interacting with continued above seasonal average temperatures and also slightly greater instability will develop low thunderstorm chances over mainly far eastern Oklahoma and western Arkansas. Development could start as early as late morning, through the greater potential 20-35 percent is forecast Monday afternoon into early evening. Severe weather is not anticipated. Any precip development along the front should remain north/northwest of the CWA Monday.
Low rain/storm chances remain Monday night mainly over western Arkansas and near the Oklahoma Kansas border as the weak front begins to enter the CWA with the push of the shortwave/trof. These low storm chances continue into Tuesday as the front moves through, with rain/storm chances tapering off Tuesday late afternoon. Overall, QPF amounts are forecast to be light with most locations of the CWA unfortunately remaining dry Monday/Tuesday. One noticeable feature with the passage of the front and the associated shortwave will be cooler conditions Tuesday and Wednesday with high temperatues of 70s/80s.
Looking into the second half of the week, latest model solutions continue to indicate the ridge of high pressure reestablishing back over the Southern Plains. However, compared to 24-hrs ago, models now have eastern Oklahoma and northwest Arkansas on the eastern periphery of the ridge Friday into the weekend, before it spreads more eastward late weekend. This could allow for a shortwave to drop southeast through the Plains along the eastern periphery of the ridge and across the CWA Friday. With the inconsistency of model runs from yesterday to today, have kept PoPs Friday just below mentionable criteria. If this latest solution verifies then shower/storm chances could return Friday, otherwise, a warming trend looks to develop Thursday into next weekend. Late week forecast will continue to be refined.
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.AVIATION... (00Z TAFS) Issued at 615 PM CDT Sun Oct 5 2025
In summary, VFR conditions will persist at all TAF sites through the forecast period. Winds should decrease this evening and become light and variable at most locations overnight tonight. Mid/upper-level cloud cover will increase across far eastern OK and western AR around or just after midnight tonight; VFR conditions are forecast to persist. Mid-level cloud cover will continue to thicken up over far eastern OK and western AR through the morning and into Monday afternoon as a cold front approaches from the northwest. Model guidance continues to indicate isolated to scattered showers and thunderstorms developing early-mid afternoon across far eastern OK and western AR, where better moisture and instability will exist. Introduced PROB30 groups at XNA, ROG, FYV, and FSM for TSRA chances by 20z. Outside of any thunderstorms that are able to move over these terminals, VFR is expected to prevail.
Mejia
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.PRELIMINARY POINT TEMPS/POPS... TUL 65 88 64 80 / 0 0 0 10 FSM 67 85 68 85 / 0 30 20 30 MLC 65 87 65 85 / 0 10 10 20 BVO 61 88 60 77 / 0 0 10 20 FYV 62 83 63 81 / 0 30 20 20 BYV 62 81 64 79 / 10 30 20 20 MKO 65 87 66 83 / 0 10 10 10 MIO 63 86 62 78 / 0 10 10 20 F10 63 87 65 83 / 0 10 0 10 HHW 66 86 67 86 / 0 20 10 20
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.TSA WATCHES/WARNINGS/ADVISORIES... OK...None. AR...None. &&
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SHORT TERM...20 LONG TERM....20 AVIATION...67
NWS TSA Office Area Forecast Discussion