Southaven, MS Weather Alerts

* WHAT...Heat index values up to 109 degrees expected.

* WHERE...Portions of East Arkansas, North Mississippi, and West
Tennessee.

* WHEN...From 10 AM this morning to 7 PM CDT this evening.

* IMPACTS...Hot temperatures and high humidity may cause heat
illnesses.

* WHAT...Dangerously hot conditions with heat index values up to 110
degrees expected.

* WHERE...Portions of East Arkansas, North Mississippi, Southeast
Missouri, and West Tennessee.

* WHEN...From 11 AM this morning to 8 PM CDT this evening.

* IMPACTS...Heat related illnesses increase significantly during
extreme heat and high humidity events.

AQAMEG

The Shelby County Health Department has issued a Code Orange Ozone
Forecast effective for Shelby County Tennessee, Crittenden County
Arkansas, and DeSoto County Mississippi, including the city of
Memphis for Saturday. This ozone forecast is due to forecasted ozone
values that will be unhealthy for sensitive groups. These values will
exceed the Environmental Protection Agency's federal safe health
standard. The Shelby County Health Department recommends that
sensitive groups which include active children and adults, and
people with respiratory disease, such as asthma, limit prolonged
outdoor exertion. Please continue to check the latest air quality
forecasts and updates until monitored values return to safe levels.
For more information go to www.airnow.gov.

* WHAT...Flooding caused by excessive rainfall continues to be
possible.

* WHERE...Portions of East Arkansas, including the following areas,
Lee AR and Phillips and North Mississippi, including the following
areas, Alcorn, Benton MS, Calhoun, Chickasaw, Coahoma, DeSoto,
Itawamba, Lafayette, Lee MS, Marshall, Monroe, Panola, Pontotoc,
Prentiss, Quitman, Tallahatchie, Tate, Tippah, Tishomingo, Tunica,
Union and Yalobusha.

* WHEN...Through Thursday morning.

* IMPACTS...Excessive runoff may result in flooding of rivers,
creeks, streams, and other low-lying and flood-prone locations.

* ADDITIONAL DETAILS...
- 4 to 5 inches of rain is forecast to fall in the Watch area.
- http://www.weather.gov/safety/flood

* WHAT...Flooding caused by excessive rainfall continues to be
possible.

* WHERE...Portions of East Arkansas, including the following areas,
Lee AR and Phillips and North Mississippi, including the following
areas, Alcorn, Benton MS, Calhoun, Chickasaw, Coahoma, DeSoto,
Itawamba, Lafayette, Lee MS, Marshall, Monroe, Panola, Pontotoc,
Prentiss, Quitman, Tallahatchie, Tate, Tippah, Tishomingo, Tunica,
Union and Yalobusha.

* WHEN...From 7 AM CDT this morning through Thursday morning.

* IMPACTS...Excessive runoff may result in flooding of rivers,
creeks, streams, and other low-lying and flood-prone locations.

* ADDITIONAL DETAILS...
- 4 to 6 inches of rain is forecast to fall in the Watch area.
- http://www.weather.gov/safety/flood

ESFMEG

A large storm system over the Southwest U.S. will pivot slowly into
the Lower Mississippi Valley through Thursday. Deep moisture and
lift will persist over the Mid-South ahead of this system resulting
in several rounds of showers and thunderstorms with heavy rainfall.

Moderate to heavy rainfall will begin to impact the Mid South
Monday night and continue through Thursday. As multiple waves of
rain cross the region through the week, rainfall totals of 4 to 7
inches with locally higher amounts are possible.

Heavy rainfall this week will saturate soils and likely result in
localized flooding of low lying and poor drainage locations. If
rainfall becomes especially heavy or pockets of heavy rain move
across the same areas repeatedly, flash flooding could occur. As
rainfall totals increase through the week, the risk for river
flooding will increase as well.

Areas impacted by heavy rainfall could vary through the week, and
the exact timing and amounts are not certain. However, with the
expectation of several inches of rainfall, there will be a risk for
flooding area wide. Please monitor updated forecasts and be alert
for any flood watches or warnings that may be issued, especially if
you live in an area susceptible to flooding.

For additional hydrologic information, visit our website at:
weather.gov/meg

* WHAT...Sub-freezing temperatures as low as 27 degrees possible.

* WHERE...Portions of east Arkansas, north Mississippi, and West
Tennessee.

* WHEN...From late Monday evening through Tuesday morning.

* IMPACTS...Frost and freeze conditions could kill crops, other
sensitive vegetation and possibly damage unprotected outdoor
plumbing.

* WHAT...This is a potential dam breach watch declaration by the
U.S. Army Corps of Engineers Vicksburg District for Arkabutla Dam
located in DeSoto and Tate Counties in Northwest Mississippi. The
physical condition of the dam is unchanged, and a dam breach is
not imminent. The U.S. Army Corps of Engineers Vicksburg District
has increased the potential breach emergency status at Arkabutla
Dam from ALERT to WATCH because of increasing reservoir levels due
to recent rainfall.

* WHERE...A portion of North Mississippi, including the following
counties, Coahoma, DeSoto, Panola, Quitman, Tallahatchie, Tate and
Tunica.

* WHEN...Through Tuesday afternoon.

* IMPACTS...Dam failure may result in flash flooding of low-lying
areas below the dam.

* ADDITIONAL DETAILS...
- http://www.weather.gov/safety/flood

* WHAT...Flash Flooding caused by a potential dam or levee failure
continues to be possible at the Arkabutla Dam on the Coldwater
River.

* WHERE...A portion of North Mississippi, including the following
counties, Coahoma, DeSoto, Panola, Quitman, Tallahatchie, Tate and
Tunica.

* WHEN...Through Thursday morning.

* IMPACTS...Dam failure may result in flash flooding of low-lying
areas below the dam.

* ADDITIONAL DETAILS...
- http://www.weather.gov/safety/flood

A combination of lingering frozen precipitation on area roads
and a return of arctic air tonight will freeze any precipitation
on surfaces until temperatures warm above freezing later Sunday.
Black ice will be a major concern where any refreezing occurs.

Extreme caution should be exercised if you must travel. Please
check local road conditions first if you must absolutely travel
into the upcoming weekend.