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Helping Business Weather the Storm

National Weather Summary for Monday, March 27, 2017

by David Moran, on Mar 27, 2017 11:03:07 AM

Thunderstorms are expected across the Mississippi and Ohio Valleys on Monday as an area of low pressure moves into the region. Wintry precipitation will continue Monday across portions of the Northeast as an area of low pressure moves eastward.

US Hazards for Monday, March 27, 2017US Hazards

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Region 1
A surface low is forecast to track to the northeast across the Midwest and into the Ohio Valley on Monday, with a cold front extending to the south of the low. Aloft, an upper level trough will move to the east, providing upper level support for strong to severe thunderstorms across the region. Ahead of the low and cold front, rich moisture will continue to move into the region by early afternoon with daytime heating increasing instability over the region. This will lead to thunderstorm development along and ahead of the front into the afternoon. Initially, thunderstorms will be supercellular capable of large hail, damaging winds, and tornadoes. Later in the evening, thunderstorms will evolve into linear structures with damaging winds the primary hazard.

Update 11:55am CDT: Severe thunderstorms capable of large hail are developing near Memphis, TN.

Radar 11:55am CDT 3/27/17Radar 11:55am CDT

Update 12:17pm CDT: Severe Thunderstorm Watch in effect for portions of Arkansas, Kentucky, Missouri, Mississippi and Tennessee until 8pm CDT. Primary hazards include hail to 2.5 inches, damaging winds, and isolated tornadoes.

Severe Thunderstorm Watch 3/27/17Severe Thunderstorm Watch

Update 12:50pm CDT: Severe thunderstorms capable of large hail in northwestern Tennessee and southwestern Kentucky,

Radar 12:50pm CDT 3/27/17Radar 12:50pm CDT

Update 1:33pm CDT: Thunderstorm exhibiting some rotation SE of Kirksey, TN.

Radar 1:33pm CDT 3/27/17Radar 1:33pm CDT

Update 1:45pm CDT: Tornado Warnings in northern Mississippi.

Radar 1:45pm CDT 3/27/17Radar 1:45pm CDT

Update 2:08pm CDT: Severe Thunderstorm Watch in effect for portions of Alabama, Arkansas, Louisiana, and Mississippi until 9pm CDT.

Severe Thunderstorm Watch 3/27/16Severe Thunderstorm Watch

Update 2:30pm CDT: Severe Thunderstorm Watch for portions of Indiana, Kentucky, and Tennessee until 10pm CDT.

Severe Thunderstorm Watch 3/27/17Severe Thunderstorm Watch

Update 2:43pm CDT: Severe thunderstorm capable of large hail and damaging winds near Jackson, MS.

Radar 2:45pm CDT 3/27/17Radar 2:45pm CDT

Major Cities in Region: Memphis, TN, Nashville, TN, Evansville, IN, Louisville, KY

Region 1 Monday, March 27, 2017Region 1

Region 2
Wintry precipitation will wind down across the Northeast late in the day on Monday as an area of low pressure departs from the region. Snow and sleet accumulations of 1-3 inches and ice accumulations of up to a tenth of an inch are expected.

Major Cities in Region: Portland, ME, Augusta, ME

Region 2 Monday, March 27, 2017Region 2

Severe Thunderstorms Expected across West Texas on Tuesday
Another round of severe weather is expected across west Texas on Tuesday. An upper level low will lead to the development of a surface low in the lee of the Rockies. The low should continue to deepen as the upper level low moves into the Plains. As it does, a dryline and frontal system will also develop. Moist air behind the warm front and daytime heating will lead to the development of thunderstorms during the afternoon. Large hail, damaging winds, and tornadoes will be possible with these storms. 

Major Cities in Region: Abilene, TX, Denton, TX, Wichita Falls, TX, Ardmore, OK

SPC Convective Outlook for Tuesday, March 28, 2017

Strong to Severe Thunderstorms Possible for East Texas and the Lower Mississippi Valley on Wednesday
An upper level system and surface low will continue to move eastward on Wednesday, allowing for the development of strong to severe thunderstorms from east Texas and southeastern Oklahoma into Louisiana and Arkansas. Storms should be ongoing from the night before, however, more intense thunderstorms should develop in the afternoon hours. These storms should continue into the evening as they move into the lower Mississippi Valley. Large hail, damaging winds, and tornadoes will be possible with these storms.

Major Cities in Region: Houston, TX, Shreveport, LA, Little Rock, AR

SPC Convective Outlook for Wednesday, March 29, 2017SPC Convective Outlook for Wednesday

Excessive Rainfall Possible for Western Portions of Oklahoma and Texas on Wednesday
As the area of low pressure described above brings Gulf moisture northward, heavy rain will be possible. The slow movement of the low will allow for copious amounts of rain to fall in this region Tuesday into Wednesday. At this time, rainfall amounts of 3-4 inches with locally higher amounts in excess of 5 inches are forecast. Flash flooding will be a concern in these areas.

Major Cities in Region: Abilene, TX, Oklahoma City, OK, Wichita, KS

Excessive Rainfall Possible for Wednesday, March 29, 2017Excessive Rainfall Risk Outline for Wednesday

A Look Ahead
Severe thunderstorms may develop across portions of Mississippi and Alabama on Thursday as an area of low pressure and cold front continue to move eastward. Damaging winds will be the main hazard, but large hail and isolated tornadoes cannot be ruled out.

This is just a brief look at current weather hazards. We can provide you site-specific weather forecast information for the purpose of protecting your personnel and assets and to assess your weather risk. Try a 7-day demo right away and learn how timely precision weather information can enhance your bottom line.