Area Forecast Discussion
Issued by NWS Pueblo, CO
Issued by NWS Pueblo, CO
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449 FXUS65 KPUB 220916 AFDPUB Area Forecast Discussion National Weather Service Pueblo CO 316 AM MDT Sat Jun 22 2024 .KEY MESSAGES... - Showers and thunderstorms decrease in coverage for today, with temperatures remaining near to just above normal for most locations this afternoon. - Rain showers and thunderstorms possible each afternoon Sunday through Friday, with the greatest coverage of precipitation Wednesday through Friday. - The heat returns Sunday through Friday, with above seasonal temperatures expected for much of the area. && .SHORT TERM /THROUGH TONIGHT/... Issued at 315 AM MDT Sat Jun 22 2024 Currently.. An outflow boundary is working its way across our northern plains, though it hasn`t managed to spark any showers behind it as of it 2am. Satellite and radar imagery depict some lingering showers over our southern plains, along with the southern Sangres and the souther San Juans early this morning as well. Temperatures are in the 60s and low 70s across the plains, with 50s for the San Luis Valley. Dewpoints are mostly in the 50s. Extensive cloud cover is present over most of the area, with clearing over Lake and Chaffee counties this morning. Today and Tonight.. Our flow aloft transitions from moist and southwesterly this morning, to more dry and westerly by later this afternoon as a large area of high pressure to our far southeast begins to expand bringing us more zonal flow. Models suggest that we will still have enough lingering moisture and shortwave energy to see another round of isolated to widely scattered showers and thunderstorms this afternoon over the high country. Storms today are looking much weaker and less impressive, especially with rainfall totals, than what we`ve seen for the past few days. Most favorable ares for convection will once again exist over our San Juans and the San Luis Valley, but today`s storms risks will mainly consist of outflow wind gusts to 45 mph and lightning. With forecast CAPE values of around 1000 J/Kg or less and and 20-30kt of deep layer shear in the same areas, one or two storms may be on the strong side, capable of producing small hail, as well. Temperatures look to be fairly close to what we saw yesterday for most locations, with highs climbing into the upper 80s to mid 90s across our plains, upper 70s to low 80s for mountain valleys, and 50s and 60s for higher terrain locations. Most convection looks to remain confined to the higher terrain today, though a few members bring a the potential for a storm or two out near the I-25 corridor early this evening. Storm chances die off quickly after sunset tonight, giving way to drying conditions and overnight lows in the 50s and 60s for our plains and mountain valleys. && .LONG TERM /SUNDAY THROUGH FRIDAY/... Issued at 315 AM MDT Sat Jun 22 2024 Sunday - Friday: The long term period will start relatively quiet, with an uptick in active weather for the later half of next week. For Sunday through Tuesday, a ridge of high pressure will push westward across the southern US and become stationary over the Colorado and New Mexico region. Given the increased subsidence with this feature, dry conditions are expected for most. With that said though, weak orographic forcing over the higher terrain, in combination with modest moisture remaining in place, will allow for isolated to widely scattered rain showers and weak thunderstorms to blossom over the mountains each afternoon. Any precipitation present each day is anticipated to dissipate during the evening hours as diurnal instability wanes. Then for Wednesday through Friday, a wetter stretch of days is expected. The ridge in place will start to become more messy as it slightly flattens out and allows for weak waves to trek over the area. In addition to that, richer moisture will start to advect around the high pressure to the south and up over the area. With the uptick in forcing from the waves, and better moisture streaming over the region, precipitation chances will become heightened, with rain showers and thunderstorms anticipated for much of south central and southeastern Colorado each afternoon. The greatest coverage of precipitation is expected along the mountains, where forcing will be strongest. Like the previous days before the later half of the week, precipitation coverage will peak during the afternoon hours, and then start to lessen in coverage and intensity during the evening hours. Now looking at temperatures, the heat starts to return for most areas. Much of the region will quickly warm back to above seasonal values for late June. With that said, Wednesday may bring minor relief from the heat, as a cold front pushes southward during this timeframe. && .AVIATION /06Z TAFS THROUGH 06Z SUNDAY/... Issued at 315 AM MDT Sat Jun 22 2024 KCOS and KPUB..VFR conditions are expected for the next 24 hours at both stations. An outflow boundary has passed through both terminals in the past hour or two, bringing gusty northerly winds, which are expected to subside quickly. Normal diurnal wind patterns are expected to take over later this morning and persist through the afternoon hours, with mid and upper-level cloud decks remaining throughout the forecast period, and into Sunday as well. Precipitation is not expected today, though storms will be possible along the higher terrain west of both terminals. KALS..MVFR and IFR ceilings and visibilities will continue to be possible early this morning as lingering moisture from yesterday record rainfall remains in the atmosphere. VFR are expected shortly after sunrise at the latest. Another round of showers and thunderstorms is expected later this afternoon and this evening, with the most likely time of storms moving over station being from 22Z to 02Z. && .PUB WATCHES/WARNINGS/ADVISORIES... None. && $$ SHORT TERM...EHR LONG TERM...SIMCOE AVIATION...EHR