Area Forecast Discussion
Issued by NWS Nashville, TN
Issued by NWS Nashville, TN
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176 FXUS64 KOHX 290527 AFDOHX Area Forecast Discussion National Weather Service Nashville TN 1227 AM CDT Mon Apr 29 2024 ...New AVIATION... .UPDATE... Issued at 740 PM CDT Sun Apr 28 2024 Patchy clouds and isolated sprinkles that were observed Sunday afternoon had dissipated as of 740 PM CDT. Skies were mainly clear, but clouds will increase again late in the night as moisture streams out from storms to our west. The night will be quite mild as a south breeze continues. Lows will be mainly in the upper 50s to mid 60s. No major forecast changes are needed this evening. && .SHORT TERM... (Rest of today through Monday Night) Issued at 1131 AM CDT Sun Apr 28 2024 Full-on spring and almost-summer has arrived, Middle TN. (It looks like) Gone are the days of the chilly mornings and mid-60s afternoons. Even the 8-14 day outlooks have us warmer and wetter than normal. We`re now into the 80s every day and low to mid 60s each morning - unless you live on the Plateau, then you get to enjoy the coolish temps still. Today will be a warm, dry and breezy day with afternoon highs creeping into the low to mid 80s for most. Cu fields have already developed across the area and with a cap in place, we will remain rain-free. However, this will change tomorrow. All of the activity that has been going on upstream from us the last couple of days will finally reach the mid-state tomorrow afternoon. The good news is, the weather actually looks pretty benign when it gets here. By the time the active pattern gets here, we`ll be losing shear, lapse rates fall off and CAPE numbers should remain below 1000 J/Kg. This all spells thunderstorms, but nothing looks severe right now. As was mentioned in the AFD earlier this morning, if there`s anything that sticks out in forecast soundings, it`s PW values. Current progs show these numbers creeping above 1.50" late tomorrow afternoon. While I`m not overly concern about flooding, efficient rainfall could give a couple of spots in Middle TN a quick 2+ inches, leading to some localized issues. Just something to keep in mind. && .LONG TERM... (Tuesday through next Sunday) Issued at 1131 AM CDT Sun Apr 28 2024 Monday`s evening storms will be slow to move out of the area. Models want to hold onto rain/storm chances through Tuesday afternoon, especially east of I-65. Similar to Monday, we`ll likely see some sub-1000 J/Kg CAPE build into this area, but shear values remain unimpressive, so no severe weather is expected. We`ll catch a break from the storms Wednesday and Thursday, but both will likely be our warmest days of the week as an upper level ridge amplifies into the Ohio Valley. The NBM continues to be very aggressive with upper 80s west of the Plateau for Thursday`s highs and might be a tick higher with probs for getting to 90. If that happens, we would tie a 123-year record. Rain chances move back into the region on Thursday starting another couple days of active weather. For now, CAPE and shear remain unimpressive as there just isn`t enough time to destabilize before storms get here. Long way off, but as of now, severe weather looks unlikely. && .AVIATION... (06Z TAFS) Issued at 1223 AM CDT Mon Apr 29 2024 VFR conditions will continue through Monday afternoon. Showers and possibly some storms will begin to impact the CKV/BNA/MQY from west to east late Monday afternoon through the evening hours. Visibilities could drop to MVFR at times during heavy rain. Cigs will deteriorate to MVFR after 00z at CKV and after 03z and BNA/MQY. CSV and SRB should remain VFR through the taf period. Winds will continue to be southerly for the forecast generally between 5-10 kts. Gusts around 20 kts are expected during the daylight hours on Monday. && .PRELIMINARY POINT TEMPS/POPS... Nashville 83 64 80 59 / 50 90 40 0 Clarksville 78 62 79 58 / 80 90 20 0 Crossville 78 58 73 55 / 10 90 80 10 Columbia 83 61 80 57 / 50 90 40 0 Cookeville 80 61 73 56 / 20 90 70 10 Jamestown 80 59 73 55 / 10 90 80 10 Lawrenceburg 81 62 78 58 / 40 90 50 0 Murfreesboro 83 62 78 56 / 30 90 50 0 Waverly 78 61 80 57 / 80 90 20 0 && .OHX WATCHES/WARNINGS/ADVISORIES... None. && $$ UPDATE.......13 SHORT TERM...Unger LONG TERM....Unger AVIATION.....Reagan