SOUTHEAST LOUISIANA: Today has a 20 percent chance for showers throughout the day. Tuesday there will be a 90 percent chance for daytime showers decreasing to 30 percent at night. Wednesday will be partly sunny and partly cloudy at night. Thursday has a 40 percent chance for daytime showers decreasing to 20 percent at night moving into Friday.
Temperatures: Today: 71/59, Tuesday: 69/38, Wednesday: 51/30, Thursday: 44/30, Friday: 50/33.
HAZARDOUS WEATHER: Severe weather is possible across the entire outlook area but the area of greatest risk will generally be along and north of a line from Pierre Part to Poplarville. A very strong system will move through the lower Mississippi Valley. Across the area of highest risk, large hail, damaging straight line winds and even a few tornadoes will be possible. Across the southern portion of the area, large hail will be the main threat. Strong winds and tornadoes will be much less likely due to more stable air near the surface. Storm total rainfall will generally be between 1 and 1.5 inches. However, localized higher amounts will be possible.
The storm system Tuesday will also bring strong winds to the coastal water Tuesday through Wednesday. Small craft advisories are already in effect for Tuesday morning through Wednesday afternoon. Winds of 20 to 25 mph will be possible over all of the Gulf waters during this time and seas could reach 8 feet in the outer waters.
SOUTHWEST LOUISIANA: Today has a 20-30 percent chance of showers throughout the day. Tuesday has an 80 percent chance for daytime showers and mostly cloudy at night. Wednesday and Thursday will be partly sunny then cloudy in the evenings. Friday is forecast to have a 20 percent slight chance of showers.
Temperatures: Today: 70/58, Tuesday: 66/28, Wednesday: 46/25, Thursday: 46/24, Friday: 47/24.
HAZARDOUS WEATHER: Showers will be moving into the area late tonight. Low water conditions are indicated Tuesday night for the inland waterways due to strong offshore winds.
Low water conditions are likely to persist into Wednesday morning in the wake of the strong cold front. Moderate rain with a few thunderstorms on Tuesday as a strong cold front moves into deep moisture from the Gulf. Much colder air with temperatures falling during the afternoon hours in the rain with blustery northerly winds. Temperatures aloft are sufficiently cold that wintry precip cannot be ruled out at this time. An upper level disturbance and a developing frontal wave out over the Gulf are the main culprits. Hard freezes are possible for Wednesday morning into the weekend.
CENTRAL LOUISIANA: Today will be partly sunny with a 30 percent chance for showers at night. Tuesday has a 100 percent chance for daytime showers and mostly cloudy at night. Wednesday and Thursday will be mostly sunny to cloudy. Thursday night has a 20 percent chance of showers. Friday is forecast to have a 30 percent chance of showers and snow then clearing up at night.
Temperatures: Today: 70/61, Tuesday: 62/27, Wednesday: 40/26, Thursday: 41/26, Friday: 37/26.
HAZARDOUS WEATHER: Showers will be moving into the area late tonight. Low water conditions are indicated Tuesday night for the inland waterways due to strong offshore winds.
Low water conditions are likely to persist into Wednesday morning in the wake of the strong cold front. Moderate rain with a few thunderstorms on Tuesday as a strong cold front moves into deep moisture from the Gulf. Temperatures aloft are sufficiently cold that wintry precip cannot be ruled out at this time. An upper level disturbance and a developing frontal wave out over the gulf are the main culprits. Hard freezes are possible for Wednesday morning into the weekend.
NORTHERN LOUISIANA: Today has a 20 percent chance for showers with an increase to 50 percent at night. Tuesday will have a 100 percent chance of snow/sleet mix then decreasing at night to a 20 percent chance. Wednesday and Thursday will be sunny and cloudy at night. Thursday night and Friday is forecast to have a 20-30 percent chance for snow.
Temperatures: Today: 62/56, Tuesday: 56/24, Wednesday: 34/22, Thursday: 36/20, Friday: 35/25.
HAZARDOUS WEATHER: Showers and thunderstorms should become numerous across the western third of northeast Texas. Any severe thunderstorms in association with this activity will likely hold off until Tuesday. Showers and thunderstorms will likely evolve into a squall line on Tuesday, moving west to east across the region. Strong damaging wind gusts will be possible across the region on Tuesday with an isolated tornado and hail threat also possible, especially along and south of the Interstate 20 corridor of northeast Texas and northern Louisiana. By late morning into the afternoon hours Tuesday, there will be enough cold air in association with this system for a change over to sleet and light snow. No sleet or snow accumulation is expected at this time as the moisture will likely be trying to exit the region just as the coldest air arrives. High temperatures on Tuesday will be felt during the early morning hours with temperatures likely falling some 30 degrees by late afternoon. With the falling temperatures, strong gradient winds are expected behind the front with wind gusts approaching 40 mph which will make temperatures feel even colder. Any precipitation remaining Tuesday evening will likely be in the form of very light snow flurries with all precipitation coming to an end early Tuesday evening. Wind chill values late Tuesday night into early Wednesday morning will likely be in the single digits to the lower teens across the region.
Very cold temperatures will remain in the forecast, especially Wednesday night as well as Thursday night with overnight lows expected to be near 20 degrees across portions of the region. Another upper level trough will eject into the southern plains late Thursday night into Friday, bringing with it another chance for light snow before the system departs the region Friday night.
Captain Tommy C. Boyett, LEM
Director, West Feliciana OHSEP
P.O. Box 796
9938 West Feliciana Parkway
St. Francisville, LA 70775
Cell (225) 245-4221
Office (225) 635-6428
Fax (225) 635-6996
tboyett@wfpso.org
tcboyett@gmail.com
wfpeoc@att.net
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