Delta Will Deal West Tennessee a Wet and Windy Weekend
Weather Update – 11:00 p.m. – Wednesday, October 7th
Temperatures in West Tennessee peaked in the lower 80s this afternoon. In fact, it was our first day in the 80s this month! We reached 82°F in Jackson which put us 10°F shy of the record set 4 years ago but still 6°F above average for this time of the year. We’ve got one more warm day tomorrow before clouds, wind, and rain from Hurricane Delta cool things down. Confidence in significant rainfall for West Tennessee over the weekend is increasing.
TONIGHT
It’was a clear but hazy day due to smoke from wildfires out west, and the clear skies will become cloudy overnight. Expect calm winds and temperatures to drop to only the lower 50s at the coolest point of the night. Don’t forget to download the new WBBJ Weather app on your Android device or iPhone to stay ahead of the weather where you are!
Another dry day is forecast for tomorrow with highs in the lower to middle 80s under partly to mostly cloudy skies. Rain returns on Friday from Hurricane Delta and is likely to be heavy at times on Saturday and Sunday resulting in 2″ to 4″ of rain for most of West Tennessee. Gusty winds could result in isolated power outages this Saturday so stay tuned to WBBJ 7 Eyewitness News for the latest forecast including how much rain we could end up dealing with from Delta, and for more updates keep up with Storm Team Weather online too.
Tom Meiners
Storm Team 7 Chief Meteorologist, CBM
Twitter – @WBBJ7TomMeiners
Facebook – http://facebook.com/WBBJ.tom.meiners
Email – tmeiners@wbbjtv.com
TROPICAL WEATHER UPDATE –
From the National Hurricane Center…
At 10:00 PM CT, the center of Hurricane Delta was located near latitude 22.5 North, longitude 90.9 West. Delta is moving toward the west-northwest near 17 mph. A generally northwestward motion with a reduction in forward speed is expected through early Thursday. A north-northwestward motion is expected by late Thursday, and a faster northward to north-northeastward motion is forecast on Friday and Friday night. On the forecast track, the center of Delta will move over the southern and central Gulf of Mexico through Thursday, and approach the northern Gulf coast within the hurricane warning area on Friday. Delta is forecast to move inland within the hurricane warning area by late Friday or Friday night.
Maximum sustained winds are near 90 mph with higher gusts. Strengthening is forecast while the hurricane moves over the southern and central Gulf of Mexico through Thursday, and Delta is expected to become a major hurricane again. Some weakening is forecast as Delta approaches the northern Gulf coast on Friday.
Hurricane-force winds extend outward up to 35 miles from the center and tropical-storm-force winds extend outward up to 140 miles. The estimated minimum central pressure is 972 mb.
HAZARDS AFFECTING LAND
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STORM SURGE: The combination of a dangerous storm surge and the tide will cause normally dry areas near the coast to be flooded by rising waters moving inland from the shoreline. The water could reach the following heights above ground somewhere in the indicated areas if the peak surge occurs at the time of high tide…
Pecan Island to Port Fourchon, LA including Vermilion Bay…7-11 ft
Cameron, LA to Pecan Island, LA…4-7 ft
Port Fourchon, LA to the Mouth of the Mississippi River…4-6 ft
Mouth of the Mississippi River to Ocean Springs, MS…3-5 ft
Lake Borgne, Lake Pontchartrain, and Lake Maurepas…3-5 ft
Ocean Springs, MS to MS/AL border…2-4 ft
High Island, TX to Cameron, LA including Calcasieu Lake…2-4 ft
MS/AL border to the AL/FL border including Mobile Bay…1-3 ft
Sabine Lake…1-3 ft
Port O’Connor, TX to High Island, TX including Galveston Bay…1-3 ft
The deepest water will occur along the immediate coast near and to the east of the landfall location, where the surge will be accompanied by large and dangerous waves. Surge-related flooding depends on the relative timing of the surge and the tidal cycle, and can vary greatly over short distances. For information specific to your area, please see products issued by your local National Weather Service forecast office.
WIND: Hurricane conditions are expected within the hurricane warning area by Friday evening, with tropical storm conditions expected within this area earlier on Friday. Tropical storm conditions are expected within the tropical storm warning areas on Friday.
RAINFALL: Delta is expected to produce an additional 1 to 3 inches of rain over the far northwestern Yucatan Peninsula through early Thursday. The additional rainfall may still result in areas of significant flash flooding.
Friday through Saturday, Delta is expected to produce 4 to 8 inches of rain, with isolated maximum totals of 12 inches across portions of the central Gulf Coast north into portions of the Lower to Middle Mississippi Valley. These rainfall amounts will lead to flash, urban, small stream and minor to isolated moderate river flooding. As Delta moves farther inland, 1 to 3 inches of rain, with locally higher amounts, is expected in the Ohio Valley and Mid Atlantic this weekend.
TORNADOES: The risk of a few tornadoes will increase late Thursday night into Friday over portions of southern Louisiana, southern Mississippi, and southwest Alabama.
SURF: Swells from Delta will begin to affect portions of the northern and western Gulf coast on Thursday. These swells are likely to cause life-threatening surf and rip current conditions.
