Area Forecast Discussion
Issued by NWS San Angelo, TX
Issued by NWS San Angelo, TX
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304 FXUS64 KSJT 091911 AFDSJT Area Forecast Discussion National Weather Service San Angelo TX 211 PM CDT Sun Jun 9 2024 ...New SHORT 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... (Monday through Saturday) Issued at 234 AM CDT Sun Jun 9 2024 Showers and thunderstorm chances will carry-over into Monday and Tuesday this week as an upper-level shortwave trough tracks across West Central Texas through Tuesday evening. This additional precipitation and cloud cover will allow for some cooler temperatures Monday and Tuesday, with afternoon high temperatures reaching into the mid 80s to mid 90s. Overnight low temperatures will fall into the upper 60s to mid 70s as well. A warming trend will begin mid-week as ridging aloft begins to build back over the area, bringing warmer and drier conditions back to the area through the rest of the work week and into the weekend. High temperatures by the end of the week will be back in the mid 90s to around 102. && .AVIATION... (18Z TAFS) Issued at 1225 PM CDT Sun Jun 9 2024 VFR conditions currently present across the area. Isolated storms may develop across our western counties late this afternoon but coverage is expected to remain low and uncertainty in the location of development precludes a prevailing group so have gone with VCTS groupings for KSJT and KSOA. The better chances for showers and storms will be overnight from a complex expected to develop over eastern New Mexico and the Permian Basin before moving east. Have included PROB30 groups for KSJT and KSOA based on latest hi-res guidance as confidence in how well this complex holds together has varied from run to run. This is also the reasoning for leaving VCTS/SH for the terminals further east. MVFR stratus is expected to drop south and impact the KABI terminal late overnight and through the morning hours tomorrow but progress of this cloud deck should stall before reaching KSJT and KBBD. Winds will shift to a more easterly direction this afternoon before shifting to a more northerly direction late overnight. && .PRELIMINARY POINT TEMPS/POPS... Abilene 70 85 68 88 / 50 40 20 30 San Angelo 70 90 69 94 / 50 40 20 20 Junction 70 90 71 94 / 30 40 20 10 Brownwood 71 86 68 88 / 30 40 20 20 Sweetwater 70 85 68 89 / 60 40 20 30 Ozona 68 89 68 94 / 30 30 20 10 Brady 70 87 70 89 / 40 40 10 20 && .SJT WATCHES/WARNINGS/ADVISORIES... None. && $$ SHORT TERM...50 LONG TERM....TP AVIATION...50