Area Forecast Discussion
Issued by NWS San Angelo, TX
Issued by NWS San Angelo, TX
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434 FXUS64 KSJT 100824 AFDSJT Area Forecast Discussion National Weather Service San Angelo TX 324 AM CDT Mon Jun 10 2024 ...New LONG TERM... .SHORT TERM... (This evening through Monday) Issued at 210 PM CDT Sun Jun 9 2024 As of 2PM, we are already seeing an area of agitated cumulus across the Concho Valley and the NW Hill Country with a few weak attempts at convective initiation. This is a bit earlier and further south/east than hi-resolution guidance was indicating but with a weak area of deep moisture convergence in this area based on latest mesoanalysis and temperatures in the mid 90s approaching the ConvT in the area, these attempts make sense. With only modest instability across the area and weak shear in the lowest 6 km, this activity will likely be very pulsey in nature and will likely not pose much of a severe threat. These storms could produce some heavy downpours (thanks to areal PWat values in the 1-1.5 inch range) and be slow moving with weak steering flow. Some isolated instances of hail with these storms will be possible. The main area of storm development is expected to occur west of our CWA, closer to the surface low in eastern New Mexico and the Permian Basin later this afternoon and evening. Again, with weak shear, these storms are expected to grow upscale into a complex of storms and move east/southeast into our area overnight. There has been a noted lack of run-to-run consistency in hi-res guidance as to how well this complex remains organized as it moves east. Because of this, have capped PoPs in the chance category for the overnight hours. A cold front will make progress through the area tonight which will help to knock low temperatures down a few degrees from where they have been the past few days into the upper 60s to low 70s. Scattered showers and storms will continue through tomorrow with a largely uncapped atmosphere and weak flow aloft. There may be a slight increase in upper level support with increased northwest mid-level flow on the backside of the upper low in eastern New Mexico by tomorrow afternoon which could enhance development. Have broad-brushed PoPs for tomorrow based on uncertainty in location and coverage. It will likely not be raining everywhere the entire day but further refinements will need to be made with the next forecast package. With the chances for rain and cloud cover expected, temperatures will be much cooler in the 80s to low 90s. && .LONG TERM... (Tuesday through Sunday) Issued at 229 AM CDT Mon Jun 10 2024 Northwest flow will continue across West Central Texas through Tuesday and into early Wednesday, with models continuing to show shower and isolated thunderstorm development through Tuesday night and into early Wednesday. Once the upper-level shortwave trough exits the area to our southeast by late Wednesday morning, the upper-level ridge begins to build back across West Central Texas through the remainder of the week and next weekend. Temperatures are expected to gradually climb to above normals conditions by that later part of the week, with afternoon high temperatures reaching into the mid 90s to 102 by the weekend. && .AVIATION... (06Z TAFS) Issued at 1240 AM CDT Mon Jun 10 2024 A weak cold front currently north of the KABI terminal will move slowly south across the area overnight. Expect light north to northeast winds behind the front into Monday. Challenges regarding convection timing/placement continue this forecast period. An area of SHRA/TS currently west of KSJT will move east southeast overnight, possibly affecting the southern terminals. Will maintain vicinity wording and TEMPO groups for this activity as it moves east/southeast the next several hours. For later today, additional convection is possible and will include PROB30 groups for potential afternoon SHRA/TS. Expect light northeast winds today, becoming light easterly by this evening. && .PRELIMINARY POINT TEMPS/POPS... Abilene 84 69 84 68 / 40 30 50 40 San Angelo 90 69 91 70 / 30 30 30 30 Junction 92 71 93 71 / 40 20 20 20 Brownwood 87 70 85 68 / 40 20 30 40 Sweetwater 84 68 86 68 / 40 30 50 30 Ozona 89 70 93 70 / 30 20 20 20 Brady 87 70 86 70 / 40 20 30 30 && .SJT WATCHES/WARNINGS/ADVISORIES... None. && $$ SHORT TERM...50 LONG TERM....TP AVIATION...24