Alert archive / Arkansas / Excessive Heat Warnings in 2019

Excessive Heat Warning 9, NWS Tulsa, OK

August 21, 2019

NWS Tulsa, OK issued this excessive heat warning at Aug 21, 2019, 3:09 AM CDT. It took effect at Aug 21, 2019, 12:00 PM CDT. It was in force for 7 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Aug 21, 2019, 3:09 AM CDT (08:09 UTC)
In effect from
Aug 21, 2019, 12:00 PM CDT
Expired
Aug 21, 2019, 7:00 PM CDT
In force
7 hr
Issued by
NWS Tulsa, OK

What forecasters said that day

The local office's own words before this excessive heat warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Tulsa, OK wrote its last area forecast discussion before this excessive heat warning went out at Aug 20, 11:54 PM CDT, 3 hours 15 minutes earlier.

Area forecast discussion, Aug 20, 11:54 PM CDT, 3 hours 15 minutes before
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Hazardous weather outlook, Aug 20, 4:49 PM CDT, 10 hours 20 minutes before
Hazardous Weather Outlook
National Weather Service Tulsa OK
449 PM CDT Tue Aug 20 2019

ARZ001-002-010-011-019-020-029-OKZ049-053>076-211045-
Adair OK-Benton AR-Carroll AR-Cherokee OK-Choctaw OK-Craig OK-
Crawford AR-Creek OK-Delaware OK-Franklin AR-Haskell OK-Latimer OK-
Le Flore OK-Madison AR-Mayes OK-McIntosh OK-Muskogee OK-Nowata OK-
Okfuskee OK-Okmulgee OK-Osage OK-Ottawa OK-Pawnee OK-Pittsburg OK-
Pushmataha OK-Rogers OK-Sebastian AR-Sequoyah OK-Tulsa OK-Wagoner OK-
Washington OK-Washington AR-
449 PM CDT Tue Aug 20 2019

...DANGEROUS HEAT CONTINUES TODAY AND TOMORROW...

This Outlook is for Northwest and West Central Arkansas as well as
much of Eastern Oklahoma.

.DAY ONE...Today and Tonight.

THUNDERSTORMS WITH DANGEROUS LIGHTNING.
	RISK...Limited.
	AREA... Terrain areas of southeast Oklahoma and northwestern Arkansas.
    ONSET... Ongoing.

DANGEROUS HEAT.
	RISK...Critical.
    AREA... Eastern Oklahoma and northwest Arkansas.
    ONSET... Ongoing.

AREA AT GREATEST RISK... Northeast Oklahoma and northwest
Arkansas.

DISCUSSION...

Dangerous heat is ongoing across much of eastern Oklahoma and
northwestern Arkansas. Heat indices are currently (as of 4:45 PM)
in the 103 to 112 range. If you are outside this
afternoon/evening, be sure to take heat precautions such as taking
frequent breaks in the AC and drinking plenty of fluids.

A few showers and thunderstorms have bubbled up across portions of
southeast Oklahoma and west-central Arkansas. Where storms occur,
dangerous cloud-to-ground lightning will be likely along with
gusty winds and heavy downpours. These spotty thunderstorms are
also bringing local relief from the heat with locations such as
Clayton, OK cooling down from heat indices well over 100 to 89.
Additional thunderstorm development is possible this afternoon and
evening albeit very isolated. This activity will likely dissipate
quickly as we near sun set.

SPOTTER AND EMERGENCY MANAGEMENT ACTION STATEMENT...
Spotter Activation Not Expected.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.
WEDNESDAY and THURSDAY...Thunderstorm Potential...Dangerous Heat
Potential...Heavy Rain Potential.
FRIDAY and Saturday...Thunderstorm Potential.
SUNDAY and MONDAY...Thunderstorm Potential...Dangerous Heat
Potential.

EXTENDED DISCUSSION...

Hot and humid conditions will continue on Wednesday with several
locations exceeding a heat index of 105 with some nearing 110.
Trends will need to be monitored for a potential Excessive Heat
Warning issuance for tomorrow afternoon. The end of this stretch
of very hot and humid conditions is in sight. A cold front will
begin to move into the northern portions of northeast Oklahoma
and northwest Arkansas late Wednesday into Thursday. The front
will be the main focal point for showers and thunderstorms
beginning Wednesday afternoon and continuing into the weekend.

There is the potential of some stronger storms Wednesday and
especially as we move into Thursday with the main severe threat
being damaging wind gusts. The unsettled pattern through the
weekend will bring the chance for multiple rounds of showers and
storms, especially over northeast OK and northwest AR, as well as
much cooler weather. Rainfall totals through the weekend will
generally be in the 1 to 2 inch range for northeast Oklahoma and
northwest Arkansas with totals decreasing the farther southeast
you go. Locally higher rainfall totals will be possible where
storms train over the same areas.

The potential for elevated heat indices starts to increase by
Sunday and Monday as the influence of the cold front begins to
lessen and the upper level ridge builds back into our region.

weather.gov/tulsa contains additional information.

Snider

In the hours before

Local storm report, Aug 20, 9:13 PM CDT, 5 hours 56 minutes before
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The office that day

Everything else NWS Tulsa, OK issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 20, 7:35 PM CDTSpecial Weather StatementTSAPittsburg25 min
Aug 20, 7:53 PM CDTSpecial Weather StatementTSAOkmulgee37 min
Aug 20, 7:57 PM CDTSpecial Weather StatementTSAPittsburg33 min
Aug 20, 8:14 PM CDTSevere Thunderstorm WarningTSAPittsburg18 min
Aug 20, 8:22 PM CDTSpecial Weather StatementTSAOkmulgee23 min
Aug 20, 8:35 PM CDTSpecial Weather StatementTSAOkmulgee40 min
Aug 20, 8:49 PM CDTSpecial Weather StatementTSAMcIntosh26 min
Aug 21, 2:11 PM CDTSpecial Weather StatementTSATulsa34 min
Aug 21, 2:34 PM CDTSevere Thunderstorm WarningTSARogers, Tulsa41 min
Aug 21, 2:39 PM CDTSpecial Weather StatementTSATulsa36 min
Aug 21, 3:01 PM CDTSpecial Weather StatementTSADelaware29 min
Aug 21, 3:05 PM CDTSevere Thunderstorm WarningTSARogers, Tulsa, Washington40 min
Aug 21, 3:17 PM CDTSpecial Weather StatementTSAWagoner28 min
Aug 21, 3:20 PM CDTSpecial Weather StatementTSAHaskell25 min
Aug 21, 3:22 PM CDTSpecial Weather StatementTSASequoyah23 min
Aug 21, 3:31 PM CDTSevere Thunderstorm WarningTSARogers, Tulsa, Wagoner44 min
Aug 21, 3:49 PM CDTSpecial Weather StatementTSAHaskell26 min
Aug 21, 3:50 PM CDTSpecial Weather StatementTSAOkmulgee25 min
Aug 21, 4:12 PM CDTSpecial Weather StatementTSAMuskogee33 min
Aug 21, 4:31 PM CDTSpecial Weather StatementTSAOkmulgee29 min
Aug 21, 4:35 PM CDTSpecial Weather StatementTSAMuskogee25 min
Aug 21, 4:47 PM CDTSevere Thunderstorm WarningTSAMcIntosh, Muskogee43 min
Aug 21, 4:54 PM CDTSpecial Weather StatementTSATulsa36 min
Aug 21, 5:07 PM CDTSpecial Weather StatementTSAWagoner38 min
Aug 21, 5:30 PM CDTSpecial Weather StatementTSAWagoner30 min
Aug 21, 5:34 PM CDTSevere Thunderstorm WarningTSALeFlore, Sequoyah41 min
Aug 21, 5:39 PM CDTSpecial Weather StatementTSAPittsburg51 min
Aug 21, 6:28 PM CDTSpecial Weather StatementTSALeFlore32 min
Aug 21, 6:33 PM CDTSpecial Weather StatementTSAPittsburg27 min
Aug 21, 3:13 PM CDTSpecial Weather StatementTSAMadison32 min
Aug 21, 3:39 PM CDTSpecial Weather StatementTSAMadison66 min
Aug 21, 3:44 PM CDTSevere Thunderstorm WarningTSAMadison, Washington35 min
Aug 21, 4:10 PM CDTAreal Flood AdvisoryTSABenton, Carroll, Madison, Washington2 hr
Aug 21, 4:24 PM CDTSpecial Weather StatementTSASebastian36 min
Aug 21, 4:30 PM CDTSpecial Weather StatementTSACarroll60 min
Aug 21, 4:40 PM CDTSpecial Weather StatementTSAWashington35 min
Aug 21, 5:18 PM CDTSpecial Weather StatementTSASebastian27 min
Aug 21, 5:25 PM CDTSpecial Weather StatementTSABenton35 min
Aug 21, 6:21 PM CDTSpecial Weather StatementTSAFranklin24 min

Nearby

Excessive Heat Warnings in Arkansas, 2019Every excessive heat warning in 2019

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.