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Hazardous Weather Outlook

Hazardous Weather Outlook
National Weather Service Huntsville AL
441 AM CDT Sun Jul 23 2017

ALZ001>010-016-TNZ076-096-097-240100-
Lauderdale-Colbert-Franklin AL-Lawrence-Limestone-Madison-Morgan-
Marshall-Jackson-De Kalb-Cullman-Moore-Lincoln-Franklin TN-
441 AM CDT Sun Jul 23 2017

This Hazardous Weather Outlook is for north Alabama and portions of
southern middle Tennessee.

.DAY ONE...Today and Tonight...

The high heat and humidity will continue today, with heat indices
reaching 105 to 109 degrees across Northwest and North Central
Alabama, and much of Southern Middle Tennessee this afternoon. Heat
indices could remain above 100 degrees well into the evening at some
locations. Another Heat Advisory has been issued from 11 AM this
morning to 7 PM this evening for most of the Tennessee Valley. See
the advisory for more information.

Scattered strong to perhaps marginally severe thunderstorms are
possible from late this morning through this evening across the
entire region. In addition to lightning and locally heavy downpours,
gusty winds of 50 to 60 mph will be possible with the strongest
activity.

.DAYS TWO THROUGH SEVEN...Monday through Saturday...

Scattered to numerous thunderstorms are expected on Monday and
Tuesday as a weak cold front pushes into the region. Locally heavy
rainfall and flooding will be the main impacts with this activity,
in addition to localized gusty winds up to 50 mph and lightning.

Additional isolated to scattered thunderstorms are possible through
the remainder of the work week, a few of which could be strong.
Another cold front may move into the region this coming weekend,
providing even better opportunities for thunderstorm development.


.SPOTTER CALL TO ACTION STATEMENT...

Activation of storm spotters and emergency management personnel is
not anticipated at this time.

$$




Heat Advisory

URGENT - WEATHER MESSAGE
National Weather Service Huntsville AL
238 AM CDT Sun Jul 23 2017

...Dangerous Combination of Heat and Humidity Expected Across the
Tennessee Valley Today...

.An area of high pressure continues to produce a dome of heat and
humidity across the region. The combination of this heat and
humidity will create some dangerously high temperatures and heat
index values across much of the Tennessee Valley today. Daytime
highs will climb into the low to mid 90s, with heat indices
peaking between 105 to 109 degrees once again during the
afternoon. Given the very humid air mass, heat index values over
100 degrees may develop by late morning and could last well into
the evening.

By Monday, a slightly cooler air mass should provide some limited
relief from oppressive heat and alleviate the need for another
Heat Advisory.

ALZ001>008-016-TNZ076-096-232100-
/O.NEW.KHUN.HT.Y.0004.170723T1600Z-170724T0000Z/
Lauderdale-Colbert-Franklin AL-Lawrence-Limestone-Madison-Morgan-
Marshall-Cullman-Moore-Lincoln-
Including the cities of Florence, Muscle Shoals, Sheffield,
Tuscumbia, Russellville, Red Bay, Moulton, Town Creek, Athens,
Huntsville, Decatur, Albertville, Boaz, Guntersville, Arab,
Cullman, Lynchburg, and Fayetteville
238 AM CDT Sun Jul 23 2017

...HEAT ADVISORY IN EFFECT FROM 11 AM THIS MORNING TO 7 PM CDT
THIS EVENING...

The National Weather Service in Huntsville has issued a Heat
Advisory, which is in effect from 11 AM this morning to 7 PM CDT
this evening.

* TIMING AND AREAS AFFECTED...11 AM to 7 PM across all of
  Northwest and North Central Alabama, as well as portions of
  Southern Middle Tennessee.

* TEMPERATURE...Temperatures in the low to mid 90s, combined with
  the humidity, will produce heat index values in the 105 to 109
  degree range during the afternoon.

* IMPACTS...The combination of heat and humidity will lead to an
  increased risk for heat related illnesses, including heat
  stroke and dehydration for those outside or without air
  conditioning. Additionally, car interiors will reach lethal
  temperatures within a matter of minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take extra precautions if you work or spend time outside. When
possible, reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stroke. Wear light weight and loose fitting clothing when possible
and drink plenty of water. Check up on relatives and neighbors.
Absolutely do not leave children or pets unattended in vehicles!

To reduce risk during outdoor work the Occupational Safety and
Health Administration recommends scheduling frequent rest breaks
in shaded or air conditioned environments. Anyone overcome by
heat should be moved to a cool and shaded location. Heat stroke
is an emergency, CALL 911.

&&

$$




U.S. Dept. of Commerce
NOAA National Weather Service
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Silver Spring, MD 20910
E-mail: w-nws.webmaster@noaa.gov
Page last modified: May 16, 2007
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