Area Forecast Discussion
Issued by NWS Shreveport, LA
Issued by NWS Shreveport, LA
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065 FXUS64 KSHV 250516 AFDSHV Area Forecast Discussion National Weather Service Shreveport LA 1216 AM CDT Wed Sep 25 2024 ...New AVIATION... .UPDATE... Issued at 926 PM CDT Tue Sep 24 2024 As of 930 PM, temperatures remain in the mid-to-upper 70s under mostly cloudy skies. A stationary front continues to instigate precipitation in southern zones while a disturbance ahead of larger troughing over the midwest will boost precipitation chances north of I-30 overnight. Temperature minimums remain on track toward a range in the low-to-mid 60s as a result. With weather and observed trends continuing as anticipated, forecast grid adjustments were not necessary at this time. /16/ && .SHORT TERM... (This evening through Wednesday Night) Issued at 257 PM CDT Tue Sep 24 2024 The pseudo-stationary frontal boundary draped across the ArkLaTex will continue to sustain isolated pockets of rainfall, with discernible slight chance PoPs in the northwest and southeast corners of the CWA this evening, expanding in coverage overnight. Confidence is generally still on the lesser side of 50%, with higher chances mostly confined to the I-30 corridor and adjacent zones. Tomorrow will see a similar pattern unfold as we saw today, with isolated showers continuing into the morning and appearing to shift south through the day as the frontal boundary attempts to get moving again and pushes off to our south and east. Conditions should remain mostly dry for the rest of Wednesday and overnight into Thursday Though exhibiting stationary characteristics for the time being, our boundary is technically a cold front, and once it finally manages to clear the area, its effects will be noticeable in the form of highs falling into the low to mid 80s and remaining there for the next several days. Lows will drop accordingly into the upper 50s to lower 60s. /26/ && .LONG TERM... (Thursday through next Monday) Issued at 257 PM CDT Tue Sep 24 2024 The upper level trough responsible for swinging our cold front south and east early this week will deepen over the middle Mississippi Valley as the week continues, looking to form a closed low over eastern arkansas and western Tennessee by Thursday. Meanwhile, Tropical Storm Helene, likely having reached hurricane strength, will be approaching landfall along the Florida panhandle. How this two large-scale features interact with each other remains to be seen, but enough models have indicated a Fujiwara effect resulting from their convergence as this week comes to an end. The effects of this pattern on ArkLaTex weather will take the form of renewed showers and storms across our northern zones Friday, swept in from the north on the western fringes of the upper level closed low to our northeast. The latest PoP grids keep this activity well to the north of the I-20 corridor, continuing possibly through saturday afternoon, before tapering off altogether. The closed low and associated troughing will lift far enough north and east to release the ArkLaTex from its grasp by the latter half of the weekend, with dry and quiet conditions prevailing through to the end of this extended forecast period. High temperatures may manage to rebound into the middle 80s but should not much exceed seasonable values, continuing into next week, with lows remaining in the upper 50s to lower 60s throughout. /26/ && .AVIATION... (06Z TAFS) Issued at 1211 AM CDT Wed Sep 25 2024 For the 25/06z TAF update...Radar imagery is showing an increase in showers and thunderstorms for our northern zones of southeast Oklahoma and western Arkansas. This activity should continue to push through our region tonight and into Wednesday morning as a cold front begins to push through. As such, VCSH and VCTS will remain possible for pretty much all terminals during this TAF period. Winds will generally remain light throughout this period and will gradually shift to the north as the front makes it through. KLFK could see some BR this morning that will limit visibility, so I have left some mention of that in there. /33/ && .PRELIMINARY POINT TEMPS/POPS... SHV 83 64 84 63 / 40 0 0 10 MLU 83 62 83 62 / 30 10 10 10 DEQ 82 58 82 59 / 20 0 10 20 TXK 82 61 82 61 / 40 0 10 10 ELD 81 59 80 59 / 40 0 10 10 TYR 83 62 84 62 / 40 0 0 10 GGG 82 61 83 60 / 40 0 0 10 LFK 84 64 84 62 / 40 0 0 0 && .SHV WATCHES/WARNINGS/ADVISORIES... AR...None. LA...None. OK...None. TX...None. && $$ SHORT TERM...16 LONG TERM....26 AVIATION...33