Area Forecast Discussion
Issued by NWS Lake Charles, LA
Issued by NWS Lake Charles, LA
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548 FXUS64 KLCH 190815 AFDLCH Area Forecast Discussion National Weather Service Lake Charles LA 315 AM CDT Sun May 19 2024 ...New SHORT TERM, LONG TERM... .SHORT TERM... (Today through Tuesday night) Issued at 315 AM CDT Sun May 19 2024 Early morning sfc analysis shows the area now under the influence of high pressure centered near the Ozarks and ridging swd. Water vapor imagery indicates the region now on the back side of an ern CONUS trof with a dry nwrly flow in place aloft. Combo of these features has resulted in a clear night over the forecast area. With good radiating conditions in place, patchy fog has begun developing...as of press time, no stations are reporting dense fog. Regional 88Ds are PPINE. In the near term, will continue to monitor sfc obs and traffic cams for any potential need for a Dense Fog Advisory...latest fog guidance shows a smattering of small areas where dense potential exists, but not widespread enough to warrant an advisory on their own merits. Otherwise, still looking at dry conditions through the short term as mid/upper-level ridging builds over the region from nrn Mexico. With another good radiating night expected tonight, fog is likely to form...dense potential is certainly there, but will allow later shifts to better refine this threat. Although afternoon temperatures are progged to remain fairly static, the warm muggies will return by early in the new work week as the sfc high slides ewd, allowing a return flow off the Gulf to re-develop, driving up dewpoints by several degrees by Tuesday. Accordingly, overnight lows will rebound to area-wide readings in the 70s by Tuesday morning. 25 && .LONG TERM... (Wednesday through Sunday) Issued at 315 AM CDT Sun May 19 2024 By Wednesday high pressure will be along the Carolina coast while aloft a ridge will be centered over the western gulf near NE Mexico. This will provide the local region with a humid onshore flow while suppressing chances for rainfall and keeping temperatures higher than climo norms for the date. Farther north a cold front will be across the plains and slowly moving southbound. The upper ridge will sink south and east into Thursday as a short wave moves across the upper midwest. The aforementioned cold front may drift into North TX and Arkansas before stalling. With the front relatively near the vicinity, and the upper ridge weakening locally, a few showers and storms may be possible in the lakes region and across Cen LA, although not explicitly mentioned in the forecast. The chances overall appear low at this time, just not 0. Friday and into the weekend the upper ridge may nudge back into the area suppressing already low rain chances. Temperatures will continue to run above climo norms. && .AVIATION... (06Z TAFS) Issued at 1151 PM CDT Sat May 18 2024 Little change from previous TAF thinking, with fog expected to be the primary aviation concern overnight. So far, visbys remain at least P6SM, but conditions are favorable for fog development. Guidance continues to be mixed regarding how much visibilities could fall overnight, so did not stray much from previous forecast. Still anticipate prevailing MVFR visbys after 9-10Z, with occasional IFR to LIFR reductions possible around daybreak. Conditions expected to improve to VFR through 13-14Z, with FEW/SCT CU developing during the day and light winds to prevail. 24 && .MARINE... Issued at 315 AM CDT Sun May 19 2024 No headlines are anticipated in the CWF until close to mid-week when the gradient tightens as lower pressures develop over the srn Plains and winds begin to strengthen in response. 25 && .PRELIMINARY POINT TEMPS/POPS... AEX 90 66 90 67 / 0 0 0 0 LCH 90 71 89 72 / 0 0 0 0 LFT 91 72 91 72 / 0 0 0 0 BPT 91 71 89 73 / 0 0 0 0 && .LCH WATCHES/WARNINGS/ADVISORIES... LA...None. TX...None. GM...None. && $$ SHORT TERM...25 LONG TERM....05 AVIATION...24