Issue Date: 510 AM CDT Fri Jul 20 2018
Expiration: 1015 GMT 21 2018
...EXCESSIVE HEAT AND HUMIDITY CONTINUE TODAY...
This Outlook is for Northwest and West Central Arkansas as well as
much of Eastern Oklahoma.
.DAY ONE...Today and Tonight.
AREA...Northwest Arkansas and far Northeast Oklahoma.
AREA...Eastern Oklahoma and northwest Arkansas.
An excessive heat warning has been posted for most of eastern
Oklahoma and west central Arkansas, with a heat advisory
in effect for northwest Arkansas and the remainder of eastern
Oklahoma. Heat index values will range from 105 to 110 in the
advisory area, with values up to 115 degrees in the warning area.
Take appropriate heat safety measures to avoid heat-related illnesses.
A frontal boundary will enter northwest Arkansas and northeast
Oklahoma this evening. Scattered thunderstorms will be possible,
mainly across these locations. A few storms will have severe
potential, with damaging downburst winds as the primary threat.
SPOTTER AND EMERGENCY MANAGEMENT ACTION STATEMENT...
Local Spotter Activation May Be Needed.
.DAYS TWO THROUGH SEVEN...Saturday through Thursday.
SATURDAY and SUNDAY...Dangerous Heat Potential.
MONDAY through THURSDAY...No Hazards.
THe cold front will slowly push its way through most of eastern
Oklahoma Saturday. Slightly cooler temperatures behind the front
are expected, however locations across southeast Oklahoma will
remain ahead of the front through the afternoon, with heat index
values exceeding 105. The upper pattern will begin to shift late
in the weekend, resulting in slightly cooler temperatures for the
area for much of next week.
EMERGENCY MANAGEMENT PLANNING STATEMENT...
An increase in heat related responses is likely today, and again
Saturday for much of eastern Oklahoma. Local heat response plans
may experience an uptick in activation levels.
weather.gov/tulsa contains additional information.
EXCESSIVE HEAT WARNING
Issue Date: 351 AM CDT Fri Jul 20 2018
Expiration: 2100 GMT 20 2018
...EXCESSIVE HEAT WARNING IN EFFECT FROM NOON TODAY TO 9 PM CDT
The National Weather Service in Tulsa has issued an Excessive
Heat Warning, which is in effect from noon today to 9 PM CDT this
evening. The Heat Advisory is no longer in effect.
* HEAT INDEX VALUES...From 105 to 110 with potential for values
near 115 degrees.
* TEMPERATURE...High temperatures in the upper 90s to around 108.
* Impacts...The combination of hot temperatures and high
humidity will create a dangerous situation in which heat
illnesses are possible.
Take extra precautions if you work or spend time outside. When
possible, reschedule strenuous activities to early morning or
evening. Wear light weight and loose fitting clothing and drink
plenty of water.
Never leave people or pets in a closed, parked vehicle, as
temperatures inside can reach over 150 degrees quickly, resulting
in heat stroke and death.
Anyone overcome by heat should be moved to a cool and shaded
location. Heat stroke is an emergency, call 911.