Central Alabama’s Most Detailed Seven Day Forecast
Saturday afternoon, April 29, 2017
Forecaster: Ryan Stinnett
WINDY & ALMOST HOT: Much of Alabama and Mississippi were under wind advisories today as the pressure gradient tightens up between the surface high to the east over the Atlantic and the surface low over North Central Texas. Our winds are brisk out of the south at 15-25 mph with higher gusts. Temperatures this afternoon are mainly in the upper 80s, with a few 90s showing up down south.
RADAR CHECK: We are tracking a few isolated showers/storms across Alabama this afternoon, but these are few and far between, and actually moving rapidly north across the state embedded in the southerly flow. These will wind down after sunset and another very mild night is ahead, with temperatures not falling far below 70°.
STORMS FOR SUNDAY: Most of the day will be dry, but it will be a warm and windy day, so we may see a few isolated showers. However, thunderstorms will push into Alabama late Sunday ahead of the cold front, and these look to be strong ans possibly severe.
Little change in the overall forecast for Sunday. The SPC has the western half of Alabama in the standard “slight risk”, with a “marginal risk” of severe weather for much of the rest of the state, specifically for Sunday night. A line of strong storms will be marching across Mississippi during the day and then head into Alabama. The main window for thunderstorms will come from 6PM Sunday through 6AM Monday.
CAPE and helicity values support the potential for all modes of severe weather. While it looks like we’ll be dealing with a squall line, model soundings suggest the potential for a few tornadoes embedded in the squall line, but the main threat will come from damaging wind gust. Beneficial rain is expected as well as rain amounts of 1-2 inches are likely tomorrow night.
HELLO MAY: Our weekend system will be exiting the state Monday, and the second half of Monday looks cooler, and some places may not climb out of the 60s. By Tuesday morning, 40s are likely. Our next storm system looks to arrive Wednesday into Thursday, with rain and storms expected, but this system may be tracking farther south towards the Gulf Coast, which would limit the chance for severe weather, and be more of a rain event. It still looks to turn much cooler towards the end of next week.
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WORLD TEMPERATURE EXTREMES: Over the last 24 hours, the highest observation outside the U.S. was 114.8F at Nari, Mali. The lowest observation was -102.5F at Vostok, Antarctica.
CONTIGUOUS TEMPERATURE EXTREMES: The highest observation was 104F at Rio Grande Village, TX. The lowest observation was -9F at Sheridan Lake, CO.
WEATHER ON THIS DATE IN 1973: The Mississippi River reached a crest of 43.4 feet, breaking the previous record of 42 feet established in 1785.
WEATHERBRAINS: Don’t forget you can listen to the weekly 90 minute netcast anytime on the web, or on iTunes. This is the show all about weather featuring many familiar voices, including meteorologists at ABC 33/40. Shows are usually produced on Monday evenings starting at 8:30 CDT… you can watch it live here.