Area Forecast Discussion
Issued by NWS Birmingham, AL
Issued by NWS Birmingham, AL
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600 FXUS64 KBMX 080213 AFDBMX Area Forecast Discussion National Weather Service Birmingham AL 813 PM CST Fri Feb 7 2025 ...New SHORT TERM... .SHORT TERM... (Tonight through Sunday) Issued at 810 PM CST FRI FEB 7 2025 The frontal boundary is generally stalled across the the northern third of the area. Temperatures are trending warmer in the south and cooler in the northern, so made some adjustments on both sides. Overnight, there will be an increase in clouds across the area as well as fog advection in the southern half. Once the clouds and fog develops, we should see temperatures remain steady or even increase a few degrees before sunrise. It will be a slow rise during the morning on Saturday but the afternoon will warm up nicely across the area with near record highs once again. 16 Previous short-term discussion: (This afternoon through Saturday) Issued at 1227 PM CST FRI FEB 7 2025 As forecast at this time yesterday, the surface front has stalled right along the I-20 corridor. You can see the position of the front on visible satellite, with a noticable decrease in cumulus development north of the front. Slightly cooler and drier air has moved in behind the front, with temperatures in the 50s and lower 60s with dewpoints in the 40s and 50s across the northern half of the CWA. A warm and humid airmass exists elsewhere south of the front with temperatures warming into the low to mid 70s and dewpoints in the mid to upper 60s. With the stalled front lingering over the area, an isolated shower will remain in the forecast along and south of the front for the remainder of the afternoon. The high temperature forecast for counties where the stalled front is draped will be the most challenging this afternoon. As an example, Birmingham is sitting at 68 degrees while our office is 76 at the Shelby County Airport. As the front begins to move back to the north, some locations could rise 10 to 15 degrees quickly this afternoon especially for Birmingham and points eastward along I-20. We can expect a rinse and repeat forecast once again during the overnight hours with isentropic lift developing low stratus and fog development also likely. Areas with the best chance of seeing low visibilities would be along and south of the I-85 corridor, where areas of fog have been added to the forecast. With humid conditions, low temperatures will remain mild in the 50s and 60s. Clouds and fog will slowly mix out through Saturday morning as drier air advects in aloft. With partly cloudy skies during the afternoon, temperatures will rise to near record territory once again in the upper 70s to near 80 degrees. Although an isolated shower can`t be ruled out Saturday afternoon, I`ve opted to not include in the forecast at this time due to the ample amount of dry air that will be present aloft. We`ll also see breezy conditions return on Saturday from the southwest as a pressure gradient tightens due to a developing surface low to our north that will track across the bootheel of Missouri and into Kentucky. Prevailing winds between 10 and 15mph with gusts up to 25mph are likely. 56/GDG && .LONG TERM... (Saturday night through next Thursday) Issued at 236 PM CST FRI FEB 7 2025 Long term forecast continue to feature highly zonal upper level pattern, with an east-west oriented quasi-stationary front separating an unseasonably mild and moist airmass from a more typically colder airmass to the north. Weak shortwave troughs in that zonal flow will bring an occasional patch of light rain showers into central Alabama through the weekend. Latest computer model output continues to highlight Tuesday as the day more impactful weather arrives to the area, in the form of heavier rain. Surface based instability during the Tuesday through Thursday time frame still looks rather limited. But given that (limited) instability, and lift provided by the stronger shortwave troughs passing through the area, will include some thunderstorms with the showers during the Tuesday-Thursday time frame, but not initiate any severe weather messaging at this time. Will need to monitor later model runs in case the instability trends upward. /61/ && .AVIATION... (00Z TAFS) Issued at 541 PM CST FRI FEB 7 2025 Surface winds will remain light and variable. Low MVFR to IFR stratus will develop once again after 06z tonight, along with a high likelihood of fog formation as well. At this time, the best chance for LIFR reduced vis at a terminal will be at MGM, but fog could also develop as far north as EET, ANB, and ASN as well. Low clouds and fog erode between 15z and 18z Saturday. 16 && .FIRE WEATHER... Unseasonably warm and somewhat unsettled weather is expected over the next several days. Any rainfall through Monday should be fairly light. The next significant rain chances, including chances of thunderstorms, will arrive next Tuesday. RH values will remain above critical thresholds through the period. Low level winds will increase Saturday afternoon, with a few 10-15 mph gusts but otherwise should remain below 10 mph through the period. && .CLIMATE... High temperature records for Saturday 2/8: Saturday, February 8... Birmingham: 83 Montgomery: 81 Tuscaloosa: 84 Anniston: 80 && .PRELIMINARY POINT TEMPS/POPS... Gadsden 52 78 53 67 / 10 10 60 20 Anniston 58 78 58 70 / 10 10 50 20 Birmingham 60 78 56 68 / 10 10 50 20 Tuscaloosa 60 80 57 68 / 0 10 30 10 Calera 60 79 60 71 / 10 10 30 20 Auburn 61 78 61 76 / 20 10 10 20 Montgomery 63 81 62 78 / 20 10 10 20 Troy 62 80 61 78 / 20 10 10 10 && .BMX WATCHES/WARNINGS/ADVISORIES... None. && $$ SHORT TERM...16 LONG TERM..../61/ AVIATION...16