Area Forecast Discussion
Issued by NWS Miami, FL
Issued by NWS Miami, FL
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545 FXUS62 KMFL 101103 AFDMFL Area Forecast Discussion National Weather Service Miami FL 603 AM EST Fri Jan 10 2025 ...New AVIATION... .SHORT TERM... (Today through Saturday) Issued at 238 AM EST Fri Jan 10 2025 The overall synoptic scale pattern highlights a deepening and positively tilted mid-level trough that extends across the entirety of the north-south CONUS in the central part of the country, which is also helping to amplify a mid-level ridge and associated surface high pressure across the Eastern Seaboard. Surface low pressure will begin to form over the Gulf of Mexico as the longwave trough pushes eastward while the surface high under the aforementioned ridge also shifts east and strengthens over the Ohio Valley and Mid-Atlantic regions. The result of this set up will cause winds in the South Florida region to veer easterly and eventually southerly today across South Florida and essentially cut off the cold air advection regime at that point. However, one last morning of chilly temperatures will occur as skies will remain mostly clear and the pressure gradient weakens. Lowest temperatures early this morning are expected to bottom out in the lower 40s west of Lake Okeechobee to the mid to upper 40s across the rest of Southwest Florida and the interior sections. Temperatures along the east coast will fall into the lower 50s as some warm air advection may start to take place along the immediate coast. High temperatures today will rise back into the 70s across the region. Heading into Friday night and Saturday, the positively tilted mid- level trough and surface low pressure will continue to advect eastward, but will take a slight track to the northeast across the Florida Panhandle and Carolinas as a strong ridge of high pressure located over the Caribbean that stretches north over the Florida Peninsula blocks its progression southward. As the trough and surface low track this way and eventually swing across the eastern US, winds will increase out of a southerly direction and allow for moisture advection to increase over South Florida Friday night and Saturday morning. As this occurs and the trough`s parent cold front drags south, there will be chances for a few showers across the region Saturday morning and afternoon. Convection from this FROPA is not expected to produce impactful rainfall due to the positive tilt and sheared nature of the trough, plus the front is likely to slow and not fully push the moisture out of the area. Overall, after the cold front pushes southward by Saturday afternoon and evening, drier and cooler conditions should return once again behind it. Nevertheless, the elevated moisture and cooler air could lead to increased cloudiness and not allow for large temperature variations beyond this time frame. Low temperatures Saturday morning will range from the upper 50s near Lake Okeechobee to the low to mid 60s closer to the coasts. High temperatures Saturday will rise into the mid to upper 70s across SW Florida and upper 70s to low 80s for SE Florida. && .LONG TERM... (Saturday night through Thursday) Issued at 238 AM EST Fri Jan 10 2025 After the weakening cold front washes out on Saturday, the pattern will stay more stable on Sunday with only lingering moisture leading to increased levels of cloudiness. As we head into next week, there continues to be disagreement in long range model guidance and ensembles in regards to the evolution of the frontal boundary and how far south it actually pushes. Additionally, a weaker area of low pressure looks to develop over the Gulf of Mexico in the early week period. This combination could lead to increased cloudiness in the early to mid-week period next week and also potentially lead to a few extra light rain showers over portions of the area. Looking at the guidance as a whole, some models push this front through the area much faster by Monday night and Tuesday due to surface high pressure strengthening while other guidance suggests it won`t push through until mid-week due to the disturbance over the Gulf. However, the brunt of the suite is trending in the direction of having the boundary stall and lead to increased cloudiness with chances for a few rain showers at times for the first half of next week plus smaller temperature variations in the daily highs and lows. There is still plenty of time for this trend to change, but for now the latest forecast highlights the increased cloudiness with chances for showers and temperature fluctuations being lower which would avoid cold weather concerns. && .AVIATION... (12Z TAFS) Issued at 602 AM EST Fri Jan 10 2025 VFR conditions will prevail through the forecast period. Light and variable winds overnight will increase out of the southeast and will range between 10 and 15 kts later this morning into the afternoon. Gusts of 20 to 25 kts will be possible during the afternoon hours. Periodic MVFR ceilings possible Saturday morning and afternoon as a front passes through && .MARINE... Issued at 238 AM EST Fri Jan 10 2025 Winds and seas will begin to subside for a period of time today before a disturbance forms off the coast of the Carolinas and causes an increase in winds again, this time out of the south- southwest Friday night into Saturday. Eventually, a cold front will push south towards the area over the weekend. This could lead to more hazardous conditions across the Atlantic waters in particular heading into the weekend after a brief period of calmer conditions on Friday. Lingering seas at 5-7 feet in the northern Atlantic waters will subside to mostly 3-5 feet through the day today. Gulf seas will be at 2-4 feet. && .BEACHES... Issued at 238 AM EST Fri Jan 10 2025 There will be a high risk of rip currents across the Atlantic Coast beaches through Saturday. This risk may remain elevated through the second half of the weekend and into early next week especially across the Palm Beaches as a northerly swell lingers. && .PRELIMINARY POINT TEMPS/POPS... Miami 73 64 81 60 / 0 0 20 0 West Kendall 74 61 81 57 / 0 0 20 0 Opa-Locka 75 63 81 58 / 0 0 20 0 Homestead 74 63 80 59 / 0 0 20 0 Fort Lauderdale 72 64 80 58 / 0 0 20 0 N Ft Lauderdale 72 64 80 58 / 0 0 20 0 Pembroke Pines 75 64 82 58 / 0 0 20 0 West Palm Beach 72 62 78 56 / 0 0 20 0 Boca Raton 73 64 79 56 / 0 0 30 0 Naples 73 63 73 54 / 0 0 30 0 && .MFL WATCHES/WARNINGS/ADVISORIES... FL...High Rip Current Risk through Saturday evening for FLZ168-172- 173. AM...Small Craft Advisory until 7 AM EST this morning for AMZ650-651- 670-671. GM...None. && $$ SHORT TERM...Redman LONG TERM....Redman AVIATION...Rizzuto