A wake low developed in Mississippi during the overnight hours, and progressed east into north and central Alabama. The low produced a sharp drop in atmospheric pressure which yielded brief but gusty winds of 25 to 35 mph in most cases.
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The episode as NWS HUN wrote it up.
A wake low developed in Mississippi during the overnight hours, and progressed east into north and central Alabama. The low produced a sharp drop in atmospheric pressure which yielded brief but gusty winds of 25 to 35 mph in most cases. However, localized higher wind gusts over 50 mph knocked down a few trees in Morgan County near Priceville.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Huntsville, AL wrote its last area forecast discussion before the first event at May 7, 1:17 AM CST, 1 hour 43 minutes earlier.
Area Forecast Discussion National Weather Service Huntsville AL 217 AM CDT Wed May 7 2025 ...New NEAR TERM... .NEAR TERM... (Today) Issued at 217 AM CDT Wed May 7 2025 What is left of the sfc high is shifting eastward as the sfc low in MS slides into the region. The broad region of precipitation associated with the disturbance arriving ahead of the upper level low in TX/OK has spread into the TN Valley at this hour. Obs are confirming low ceiling heights and reduced visibilities within the stratiform rainfall. Behind this batch of precip is a wake low that has a history of producing damage and wind gusts over 50 mph in N MS (per 1 AM ob at KTUP). The wake low is currently (2 AM) moving into NW AL where an ob of 25kts has already occurred at KMSL, but would not rule out brief gusts of 30 kts. CAMS are showing a lull in widespread activity across the TN Valley after 14Z with lower chances of showers/storms through the afternoon hours. This is suggesting the warm front is not lifting northward very quickly due to the stabilizing effects from the precip this morning and lingering low ceiling heights. The front will be monitored as it would affect coverage of thunderstorms this afternoon. Regardless, no severe weather is expected with the weak thermodynamics in place but moderate to heavy rainfall and lightning is anticipated. && .SHORT TERM... (Wednesday through Thursday) Issued at 129 PM CDT Tue May 6 2025 The short term period will remain unsettled as low pressure slowly meanders east across the MO Ozarks and the Tennessee Valley becomes more influenced by southwesterly flow aloft. While the airmass won't be as moisture rich as tonight/Wednesday morning, the SW flow will maintain at least some WAA that will keep low to medium chances (30-60%) for showers and embedded thunderstorms in the forecast on and off through Thursday. With limited thermodynamics and weaker synoptic support, no severe weather is expected with this activity. Highs will be much more limited on Wednesday, only reaching the upper 60s to lower 70s under overcast skies and light winds. Temps will rebound a little on Thursday reaching the mid to upper 70s with decreasing cloud cover during the afternoon. Overnight lows will be in the upper 50s/lower 60s. && .LONG TERM... (Thursday night through Monday) Issued at 936 PM CDT Mon May 5 2025 The end of the week will present more of the same in terms of low to medium rain chances prompted by the presence of a mid level and surface low just south of the area. No significant changes have been made to the weekend forecast as there remains some uncertainty regarding just how high our rain chances over the weekend and into the start of the work week will be. This uncertainty is courtesy of a surface low that will camp in the Gulf through the duration of the long term forecast. During its residency, the low looks to retrograde SW slightly over the weekend, decreasing its influence on the TN Valley. Should the low remain further south through the duration of the long term forecast, rain chances will decrease through the weekend and start of the work week. We will continue to monitor this trend. Even if rain chances are present, shear will again be lacking, again inhibiting any widespread severe risk through the weekend. && .AVIATION... (06Z TAFS) Issued at 1221 AM CDT Wed May 7 2025 A large region of rain is slowly lifting NE into north AL and will start to affect the terminals within the next few hours. Expect a reduction in CIGS and VIS with the rainfall, mainly down to MVFR but IFR at times within thunderstorms this afternoon. Models are suggesting showers and storms become pretty isolated towards the end of the TAF period, thus did not include a PROB30 to round out the forecast package, however MVFR CIGS will remain. && .HUN WATCHES/WARNINGS/ADVISORIES... AL...None. TN...None. && NEAR TERM...JMS SHORT TERM....25 LONG TERM....RAD AVIATION...JMS
The national radar mosaic for the moment the first event began.
1 strong wind. Local standard time, as filed.
Winds gusts to 55 mph produced by wake low development on the back edge of departing showers was observed at a CoCoRaHS observing site between 2 and 3 miles SSW of Priceville, AL. These winds knocked down a few large trees at nearby.
After NWS Directive 10-1605, the rules offices file Storm Data by.
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NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 1276651.