Alert archive / Oklahoma / Excessive Heat Warnings in 2021

Excessive Heat Warning 3, NWS Tulsa, OK

July 28, 202111 counties in Oklahoma

NWS Tulsa, OK issued this excessive heat warning at Jul 28, 2021, 2:33 PM CDT for 11 counties in Oklahoma. It took effect at Jul 29, 2021, 12:00 PM CDT. It was in force for 8 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
Jul 28, 2021, 2:33 PM CDT (19:33 UTC)
In effect from
Jul 29, 2021, 12:00 PM CDT
Expired
Jul 29, 2021, 8:00 PM CDT
In force
8 hr
Issued by
NWS Tulsa, OK

Counties Craig County, OK, Mayes County, OK, McIntosh County, OK, Muskogee County, OK, Nowata County, OK, Okmulgee County, OK, Ottawa County, OK, Rogers County, OK, Tulsa County, OK, Wagoner County, OK, Washington County, OK

The radar

The Tulsa radar (KINX), 7 km from the middle of the area, began a volume at 19:32 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Springfield, MO (KSGF), launched 12:00Z, 7.6 hours before the alert went out and 172 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Springfield, MO at 12:00Z on 2021-07-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2455 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Springfield, MO at 12:00Z on 2021-07-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 12 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
2455 J/kg
Mixed-layer CIN
-70 J/kg
Mixed-layer LCL
1061 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
12 m²/s²
0-3 km storm-relative helicity
53 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.9

Open this sounding in Storm Lab

The text

As transmitted.

412 
WWUS74 KTSA 281933
NPWTSA

URGENT - WEATHER MESSAGE
National Weather Service Tulsa OK
233 PM CDT Wed Jul 28 2021

ARZ019-020-029-OKZ055>058-060>062-066-067-070>072-290400-
/O.NEW.KTSA.EH.W.0003.210729T1700Z-210730T0100Z/
/O.CON.KTSA.EH.W.0002.000000T0000Z-210729T0100Z/
Crawford-Franklin-Sebastian-Washington OK-Nowata-Craig-Ottawa-
Tulsa-Rogers-Mayes-Okmulgee-Wagoner-Muskogee-McIntosh-Sequoyah-
Including the cities of Van Buren, Ozark, Charleston, Fort Smith,
Bartlesville, Nowata, Vinita, Miami, Tulsa, Claremore, Pryor, 
Okmulgee, Wagoner, Muskogee, Checotah, and Sallisaw
233 PM CDT Wed Jul 28 2021

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM CDT THIS
EVENING...
...EXCESSIVE HEAT WARNING IN EFFECT FROM NOON TO 8 PM CDT
THURSDAY...

* WHAT...Dangerously hot conditions with heat index values of 110
  to 113 expected this afternoon and again Thursday afternoon. 

* WHERE...Portions of east central, northeast and southeast 
  Oklahoma and northwest and west central Arkansas.

* WHEN...Uuntil 8 PM CDT this evening and again from noon to 8 PM
  CDT Thursday.

* IMPACTS...The combination of hot temperatures and high humidity
  will combine to create a dangerous situation in which heat 
  illnesses are possible.

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. 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.

&&

$$

OKZ074-076-290400-
/O.NEW.KTSA.HT.Y.0012.210729T1700Z-210730T0100Z/
/O.CON.KTSA.EH.W.0002.000000T0000Z-210729T0100Z/
Haskell-Le Flore-
Including the cities of Stigler and Poteau
233 PM CDT Wed Jul 28 2021

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM CDT THIS
EVENING...
...HEAT ADVISORY IN EFFECT FROM NOON TO 8 PM CDT THURSDAY...

* WHAT...Dangerously hot conditions with heat index values of 105
  to around 111 this afternoon and again Thursday afternoon.

* WHERE...Haskell and Le Flore Counties.

* WHEN...For the Excessive Heat Warning, until 8 PM CDT this 
  evening. For the Heat Advisory, from noon to 8 PM CDT Thursday.

* IMPACTS...The combination of hot temperatures and high humidity
  will combine to create a dangerous situation in which heat 
  illnesses are possible.

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. 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.

&&

$$

ARZ001-OKZ049-053-054-059-063>065-068-069-073-075-290400-
/O.NEW.KTSA.HT.Y.0012.210729T1700Z-210730T0100Z/
/O.CON.KTSA.HT.Y.0011.000000T0000Z-210729T0100Z/
Benton-Pushmataha-Choctaw-Osage-Pawnee-Delaware-Creek-Okfuskee-
Cherokee-Adair-Pittsburg-Latimer-
Including the cities of Rogers, Bentonville, Antlers, Clayton, 
Hugo, Pawhuska, Pawnee, Grove, Jay, Sapulpa, Okemah, Tahlequah, 
Stilwell, McAlester, and Wilburton
233 PM CDT Wed Jul 28 2021

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM CDT THIS EVENING...
...HEAT ADVISORY IN EFFECT FROM NOON TO 8 PM CDT THURSDAY...

* WHAT...Heat index values of 105 to 110 expected this afternoon
  and again Thursday afternoon.

* WHERE...Portions of east central, northeast and southeast 
  Oklahoma and northwest Arkansas.

* WHEN...For the Heat Advisory, until 8 PM CDT this evening. For 
  the Heat Advisory, from noon to 8 PM CDT Thursday.

* IMPACTS...The combination of hot temperatures and high humidity
  will combine to create a dangerous situation in which heat
  illnesses are possible.

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. 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.

&&

$$

ARZ002-010-011-290400-
/O.NEW.KTSA.HT.Y.0012.210729T1700Z-210730T0100Z/
Carroll-Washington AR-Madison-
Including the cities of Berryville, Eureka Springs, Fayetteville,
Springdale, and Huntsville
233 PM CDT Wed Jul 28 2021

...HEAT ADVISORY IN EFFECT FROM NOON TO 8 PM CDT THURSDAY...

* WHAT...Heat index values of 105 to 108 expected.

* WHERE...Carroll, Washington AR and Madison Counties.

* WHEN...From noon to 8 PM CDT Thursday.

* IMPACTS...The combination of hot temperatures and high 
  humidity will combine to create a dangerous situation in which 
  heat illnesses are possible.

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. 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.

&&

$$

Stay tuned to NOAA weather radio,commercial radio or television
for the latest information,forecasts,and warnings.
For more information from the National Weather Service visit
https://weather.gov/tsa
5 follow-up statements
092 
WWUS74 KTSA 290105
NPWTSA

URGENT - WEATHER MESSAGE
National Weather Service Tulsa OK
805 PM CDT Wed Jul 28 2021

ARZ019-020-029-OKZ055>058-060>062-066-067-070>072-290915-
/O.EXP.KTSA.EH.W.0002.000000T0000Z-210729T0100Z/
/O.CON.KTSA.EH.W.0003.210729T1700Z-210730T0100Z/
Crawford-Franklin-Sebastian-Washington OK-Nowata-Craig-Ottawa-
Tulsa-Rogers-Mayes-Okmulgee-Wagoner-Muskogee-McIntosh-Sequoyah-
Including the cities of Van Buren, Ozark, Charleston, Fort Smith,
Bartlesville, Nowata, Vinita, Miami, Tulsa, Claremore, Pryor, 
Okmulgee, Wagoner, Muskogee, Checotah, and Sallisaw
805 PM CDT Wed Jul 28 2021

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT FROM NOON TO 8 PM CDT
THURSDAY...

* WHAT...Dangerously hot conditions with maximum afternoon heat index
  values from 110 to 114 degrees expected.

* WHERE...Portions of east central, northeast and southeast 
  Oklahoma, and northwest and west central Arkansas.

* WHEN...From noon to 8 PM CDT Thursday.

* IMPACTS...The combination of hot temperatures and high humidity 
  will combine to create a dangerous situation in which heat 
  illnesses are possible.

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. 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.

&&

$$

OKZ074-076-290915-
/O.EXP.KTSA.EH.W.0002.000000T0000Z-210729T0100Z/
/O.CON.KTSA.HT.Y.0012.210729T1700Z-210730T0100Z/
Haskell-Le Flore-
Including the cities of Stigler and Poteau
805 PM CDT Wed Jul 28 2021

...HEAT ADVISORY REMAINS IN EFFECT FROM NOON TO 8 PM CDT
THURSDAY...

* WHAT...Maximum afternoon heat index values from 105 to 109 degrees
  expected.

* WHERE...Haskell and Le Flore Counties.

* WHEN...From noon to 8 PM CDT Thursday.

* IMPACTS...The combination of hot temperatures and high 
  humidity will combine to create a dangerous situation in which 
  heat illnesses are possible.

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. 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.

&&

$$

ARZ001-OKZ049-053-054-059-063>065-068-069-073-075-290915-
/O.EXP.KTSA.HT.Y.0011.000000T0000Z-210729T0100Z/
/O.CON.KTSA.HT.Y.0012.210729T1700Z-210730T0100Z/
Benton-Pushmataha-Choctaw-Osage-Pawnee-Delaware-Creek-Okfuskee-
Cherokee-Adair-Pittsburg-Latimer-
Including the cities of Rogers, Bentonville, Antlers, Clayton, 
Hugo, Pawhuska, Pawnee, Grove, Jay, Sapulpa, Okemah, Tahlequah, 
Stilwell, McAlester, and Wilburton
805 PM CDT Wed Jul 28 2021

...HEAT ADVISORY REMAINS IN EFFECT FROM NOON TO 8 PM CDT
THURSDAY...

* WHAT...Maximum afternoon heat index values from 105 to 109 degrees
  expected.

* WHERE...Portions of east central, northeast and southeast 
  Oklahoma, and northwest Arkansas.

* WHEN...From noon to 8 PM CDT Thursday.

* IMPACTS...The combination of hot temperatures and high 
  humidity will combine to create a dangerous situation in which 
  heat illnesses are possible.

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. 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.

&&

$$

ARZ002-010-011-290915-
/O.CON.KTSA.HT.Y.0012.210729T1700Z-210730T0100Z/
Carroll-Washington AR-Madison-
Including the cities of Berryville, Eureka Springs, Fayetteville,
Springdale, and Huntsville
805 PM CDT Wed Jul 28 2021

...HEAT ADVISORY REMAINS IN EFFECT FROM NOON TO 8 PM CDT
THURSDAY...

* WHAT...Maximum afternoon heat index values of 105 to 108 degrees
  expected. 

* WHERE...Carroll, Washington AR and Madison Counties.

* WHEN...From noon to 8 PM CDT Thursday.

* IMPACTS...The combination of hot temperatures and high 
  humidity will combine to create a dangerous situation in which 
  heat illnesses are possible.

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. 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.

&&

$$

Stay tuned to NOAA weather radio,commercial radio or television
for the latest information,forecasts,and warnings.
For more information from the National Weather Service visit
https://weather.gov/tsa
093 
WWUS74 KTSA 290827
NPWTSA

URGENT - WEATHER MESSAGE
National Weather Service Tulsa OK
327 AM CDT Thu Jul 29 2021

ARZ019-020-029-OKZ055>058-060>062-066-067-070>072-291630-
/O.NEW.KTSA.HT.Y.0013.210730T1700Z-210731T0100Z/
/O.CON.KTSA.EH.W.0003.210729T1700Z-210730T0100Z/
Crawford-Franklin-Sebastian-Washington OK-Nowata-Craig-Ottawa-
Tulsa-Rogers-Mayes-Okmulgee-Wagoner-Muskogee-McIntosh-Sequoyah-
Including the cities of Van Buren, Ozark, Charleston, Fort Smith,
Bartlesville, Nowata, Vinita, Miami, Tulsa, Claremore, Pryor, 
Okmulgee, Wagoner, Muskogee, Checotah, and Sallisaw
327 AM CDT Thu Jul 29 2021

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT FROM NOON TODAY TO
8 PM CDT THIS EVENING...
...HEAT ADVISORY IN EFFECT FROM NOON TO 8 PM CDT FRIDAY...

* WHAT...For the Excessive Heat Warning, dangerously hot
  conditions with heat index values of 108 to 113 expected. For
  the Heat Advisory, heat index values 105 to 110 expected.

* WHERE...Portions of east central, northeast and southeast 
  Oklahoma and northwest and west central Arkansas.

* WHEN...For the Excessive Heat Warning, from noon today to 8 PM 
  CDT this evening. For the Heat Advisory, from noon to 8 PM CDT 
  Friday.

* IMPACTS...He combination of hot temperatures and high humidity 
  will combine to create a dangerous situation in which heat 
  illnesses are possible.

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. 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.

&&

$$

ARZ001-002-010-011-OKZ049-053-054-059-063>065-068-069-073>076-
291630-
/O.NEW.KTSA.HT.Y.0013.210730T1700Z-210731T0100Z/
/O.CON.KTSA.HT.Y.0012.210729T1700Z-210730T0100Z/
Benton-Carroll-Washington AR-Madison-Pushmataha-Choctaw-Osage-
Pawnee-Delaware-Creek-Okfuskee-Cherokee-Adair-Pittsburg-Haskell-
Latimer-Le Flore-
Including the cities of Rogers, Bentonville, Berryville, 
Eureka Springs, Fayetteville, Springdale, Huntsville, Antlers, 
Clayton, Hugo, Pawhuska, Pawnee, Grove, Jay, Sapulpa, Okemah, 
Tahlequah, Stilwell, McAlester, Stigler, Wilburton, and Poteau
327 AM CDT Thu Jul 29 2021

...HEAT ADVISORY REMAINS IN EFFECT FROM NOON TODAY TO 8 PM CDT
THIS EVENING...
...HEAT ADVISORY IN EFFECT FROM NOON TO 8 PM CDT FRIDAY...

* WHAT...Heat index values up to 108 expected both days. 

* WHERE...Portions of east central, northeast and southeast 
  Oklahoma and northwest Arkansas.

* WHEN...From noon today to 8 PM CDT this evening, and from noon 
  to 8 PM CDT Friday.

* IMPACTS...The combination of hot temperatures and high 
  humidity will combine to create a dangerous situation in which 
  heat illnesses are possible.

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. 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.

&&

$$

Stay tuned to NOAA weather radio,commercial radio or television
for the latest information,forecasts,and warnings.
For more information from the National Weather Service visit
https://weather.gov/tsa
075 
WWUS74 KTSA 291546
NPWTSA

URGENT - WEATHER MESSAGE
National Weather Service Tulsa OK
1046 AM CDT Thu Jul 29 2021

ARZ019-020-029-OKZ055>058-060>062-066-067-070>072-300130-
/O.CON.KTSA.EH.W.0003.210729T1700Z-210730T0100Z/
/O.CON.KTSA.HT.Y.0013.210730T1700Z-210731T0100Z/
Crawford-Franklin-Sebastian-Washington OK-Nowata-Craig-Ottawa-
Tulsa-Rogers-Mayes-Okmulgee-Wagoner-Muskogee-McIntosh-Sequoyah-
Including the cities of Van Buren, Ozark, Charleston, Fort Smith,
Bartlesville, Nowata, Vinita, Miami, Tulsa, Claremore, Pryor, 
Okmulgee, Wagoner, Muskogee, Checotah, and Sallisaw
1046 AM CDT Thu Jul 29 2021

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM CDT THIS
EVENING...
...HEAT ADVISORY REMAINS IN EFFECT FROM NOON TO 8 PM CDT FRIDAY...

* WHAT...For the Excessive Heat Warning, dangerously hot 
  conditions with heat index values of 108 to 113 expected. For 
  the Heat Advisory, heat index values 105 to 110 expected.

* WHERE...Portions of east central, northeast and southeast 
  Oklahoma and northwest and west central Arkansas.

* WHEN...For the Excessive Heat Warning, from noon today to 8 PM 
  CDT this evening. For the Heat Advisory, from noon to 8 PM CDT 
  Friday.

* IMPACTS...He combination of hot temperatures and high humidity 
  will combine to create a dangerous situation in which heat 
  illnesses are possible.

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. 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.

&&

$$

ARZ001-002-010-011-OKZ049-053-054-059-063>065-068-069-073>076-
300130-
/O.CON.KTSA.HT.Y.0012.210729T1700Z-210730T0100Z/
/O.CON.KTSA.HT.Y.0013.210730T1700Z-210731T0100Z/
Benton-Carroll-Washington AR-Madison-Pushmataha-Choctaw-Osage-
Pawnee-Delaware-Creek-Okfuskee-Cherokee-Adair-Pittsburg-Haskell-
Latimer-Le Flore-
Including the cities of Rogers, Bentonville, Berryville, 
Eureka Springs, Fayetteville, Springdale, Huntsville, Antlers, 
Clayton, Hugo, Pawhuska, Pawnee, Grove, Jay, Sapulpa, Okemah, 
Tahlequah, Stilwell, McAlester, Stigler, Wilburton, and Poteau
1046 AM CDT Thu Jul 29 2021

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM CDT THIS EVENING...
...HEAT ADVISORY REMAINS IN EFFECT FROM NOON TO 8 PM CDT FRIDAY...

* WHAT...Heat index values up to 108 expected both days.

* WHERE...Portions of east central, northeast and southeast 
  Oklahoma and northwest Arkansas.

* WHEN...From noon today to 8 PM CDT this evening, and from noon 
  to 8 PM CDT Friday.

* IMPACTS...The combination of hot temperatures and high 
  humidity will combine to create a dangerous situation in which 
  heat illnesses are possible.

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. 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.

&&

$$

Stay tuned to NOAA weather radio,commercial radio or television
for the latest information,forecasts,and warnings.
For more information from the National Weather Service visit
https://weather.gov/tsa
286 
WWUS74 KTSA 291924
NPWTSA

URGENT - WEATHER MESSAGE
National Weather Service Tulsa OK
224 PM CDT Thu Jul 29 2021

ARZ019-020-029-OKZ055>058-060>062-066-067-070>072-300330-
/O.CON.KTSA.EH.W.0003.000000T0000Z-210730T0100Z/
/O.CON.KTSA.HT.Y.0013.210730T1700Z-210731T0100Z/
Crawford-Franklin-Sebastian-Washington OK-Nowata-Craig-Ottawa-
Tulsa-Rogers-Mayes-Okmulgee-Wagoner-Muskogee-McIntosh-Sequoyah-
Including the cities of Van Buren, Ozark, Charleston, Fort Smith,
Bartlesville, Nowata, Vinita, Miami, Tulsa, Claremore, Pryor, 
Okmulgee, Wagoner, Muskogee, Checotah, and Sallisaw
224 PM CDT Thu Jul 29 2021

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM CDT THIS
EVENING...
...HEAT ADVISORY REMAINS IN EFFECT FROM NOON TO 8 PM CDT FRIDAY...

* WHAT...For the Excessive Heat Warning, dangerously hot 
  conditions with heat index values of 105 to 110 expected. For 
  the Heat Advisory, forecast heat index values of 103 to 108.

* WHERE...Portions of east central, northeast and southeast 
  Oklahoma and northwest and west central Arkansas.

* WHEN...For the Excessive Heat Warning, from noon today to 8 PM 
  CDT this evening. For the Heat Advisory, from noon to 8 PM CDT 
  Friday.

* IMPACTS...He combination of hot temperatures and high humidity 
  will combine to create a dangerous situation in which heat 
  illnesses are possible.

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. 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.

&&

$$

ARZ001-002-010-011-OKZ049-053-054-059-063>065-068-069-073>076-
300330-
/O.CON.KTSA.HT.Y.0012.000000T0000Z-210730T0100Z/
/O.CON.KTSA.HT.Y.0013.210730T1700Z-210731T0100Z/
Benton-Carroll-Washington AR-Madison-Pushmataha-Choctaw-Osage-
Pawnee-Delaware-Creek-Okfuskee-Cherokee-Adair-Pittsburg-Haskell-
Latimer-Le Flore-
Including the cities of Rogers, Bentonville, Berryville, 
Eureka Springs, Fayetteville, Springdale, Huntsville, Antlers, 
Clayton, Hugo, Pawhuska, Pawnee, Grove, Jay, Sapulpa, Okemah, 
Tahlequah, Stilwell, McAlester, Stigler, Wilburton, and Poteau
224 PM CDT Thu Jul 29 2021

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM CDT THIS EVENING...
...HEAT ADVISORY REMAINS IN EFFECT FROM NOON TO 8 PM CDT FRIDAY...

* WHAT...Heat index values 103 to 108 expected both days.

* WHERE...Portions of east central, northeast and southeast 
  Oklahoma and northwest Arkansas.

* WHEN...From noon today to 8 PM CDT this evening, and from noon 
  to 8 PM CDT Friday.

* IMPACTS...The combination of hot temperatures and high humidity
  will combine to create a dangerous situation in which heat 
  illnesses are possible.

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. 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.

&&

$$

Stay tuned to NOAA weather radio,commercial radio or television
for the latest information,forecasts,and warnings.
For more information from the National Weather Service visit
https://weather.gov/tsa
216 
WWUS74 KTSA 300108
NPWTSA

URGENT - WEATHER MESSAGE
National Weather Service Tulsa OK
808 PM CDT Thu Jul 29 2021

ARZ019-020-029-OKZ055>058-060>062-066-067-070>072-300930-
/O.EXP.KTSA.EH.W.0003.000000T0000Z-210730T0100Z/
/O.CON.KTSA.HT.Y.0013.210730T1700Z-210731T0100Z/
Crawford-Franklin-Sebastian-Washington OK-Nowata-Craig-Ottawa-
Tulsa-Rogers-Mayes-Okmulgee-Wagoner-Muskogee-McIntosh-Sequoyah-
Including the cities of Van Buren, Ozark, Charleston, Fort Smith,
Bartlesville, Nowata, Vinita, Miami, Tulsa, Claremore, Pryor, 
Okmulgee, Wagoner, Muskogee, Checotah, and Sallisaw
808 PM CDT Thu Jul 29 2021

...HEAT ADVISORY REMAINS IN EFFECT FROM NOON TO 8 PM CDT FRIDAY...
...EXCESSIVE HEAT WARNING HAS EXPIRED...

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

* WHERE...Portions of east central, northeast and southeast 
  Oklahoma and northwest and west central Arkansas.

* WHEN...For the Heat Advisory, from noon to 8 PM CDT 
  Friday.

* IMPACTS...The combination of hot temperatures and high 
  humidity will combine to create a dangerous situation in which 
  heat illnesses are possible.

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. 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.

&&

$$

ARZ001-002-010-011-OKZ049-053-054-059-063>065-068-069-073>076-
300930-
/O.EXP.KTSA.HT.Y.0012.000000T0000Z-210730T0100Z/
/O.CON.KTSA.HT.Y.0013.210730T1700Z-210731T0100Z/
Benton-Carroll-Washington AR-Madison-Pushmataha-Choctaw-Osage-
Pawnee-Delaware-Creek-Okfuskee-Cherokee-Adair-Pittsburg-Haskell-
Latimer-Le Flore-
Including the cities of Rogers, Bentonville, Berryville, 
Eureka Springs, Fayetteville, Springdale, Huntsville, Antlers, 
Clayton, Hugo, Pawhuska, Pawnee, Grove, Jay, Sapulpa, Okemah, 
Tahlequah, Stilwell, McAlester, Stigler, Wilburton, and Poteau
808 PM CDT Thu Jul 29 2021

...HEAT ADVISORY REMAINS IN EFFECT FROM NOON TO 8 PM CDT FRIDAY...

* WHAT...Heat index values up to 107 expected.

* WHERE...Portions of east central, northeast and southeast 
  Oklahoma and northwest Arkansas.

* WHEN...From noon to 8 PM CDT Friday.

* IMPACTS...The combination of hot temperatures and high 
  humidity will combine to create a dangerous situation in which 
  heat illnesses are possible.

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. 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.

&&

$$

Stay tuned to NOAA weather radio,commercial radio or television
for the latest information,forecasts,and warnings.
For more information from the National Weather Service visit
https://weather.gov/tsa

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 28, 3:30 AM CDTExcessive Heat WarningTSACraig, Haskell, McIntosh, Mayes, Muskogee, Nowata and 6 more17 hr
Jul 28, 2:33 PM CDTHeat AdvisoryTSAAdair, Cherokee, Choctaw, Creek, Delaware, Haskell and 5 more29 hr

Nearby

Excessive Heat Warnings in Oklahoma, 2021Excessive Heat Warnings in Arkansas, 2021Every excessive heat warning in 2021

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.