Alert archive / Oklahoma / Wind Chill Advisories in 2021

Wind Chill Advisory 2, NWS Tulsa, OK

February 12, 202110 counties in Oklahoma; 4 counties in Arkansas

NWS Tulsa, OK issued this wind chill advisory at Feb 12, 2021, 2:37 PM CST for 10 counties in Oklahoma; 4 counties in Arkansas. It was in force for 39 hr.

The area

The counties it named.

The facts

Issued
Feb 12, 2021, 2:37 PM CST (20:37 UTC)
Expired
Feb 14, 2021, 6:00 AM CST
In force
39 hr
Issued by
NWS Tulsa, OK

Counties Benton County, AR, Carroll County, AR, Madison County, AR, Washington County, AR, Craig County, OK, Creek County, OK, Delaware County, OK, Mayes County, OK, Nowata County, OK, Ottawa County, OK, Pawnee County, OK, Rogers County, OK, Tulsa County, OK, Washington County, OK

The radar

The Tulsa radar (KINX), 44 km from the middle of the area, began a volume at 20:41 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, 8.6 hours before the alert went out and 133 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 2021-02-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCLEL10008507005003002001001 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 2021-02-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 5 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
551 m above ground
0-6 km bulk shear
48 kt
0-1 km storm-relative helicity
5 m²/s²
0-3 km storm-relative helicity
135 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

939 
WWUS44 KTSA 122037
WSWTSA

URGENT - WINTER WEATHER MESSAGE
National Weather Service Tulsa OK
237 PM CST Fri Feb 12 2021

...HIGH IMPACT WINTER STORM EXPECTED ACROSS EASTERN OKLAHOMA AND
NORTHWEST ARKANSAS SATURDAY NIGHT THRU MONDAY...

OKZ054>064-131100-
/O.UPG.KTSA.WS.A.0003.210214T1200Z-210216T0000Z/
/O.NEW.KTSA.WS.W.0002.210214T0600Z-210216T0000Z/
/O.NEW.KTSA.WC.Y.0002.210212T2037Z-210214T0600Z/
Osage-Washington OK-Nowata-Craig-Ottawa-Pawnee-Tulsa-Rogers-Mayes-
Delaware-Creek-
Including the cities of Pawhuska, Bartlesville, Nowata, Vinita, 
Miami, Pawnee, Tulsa, Claremore, Pryor, Grove, Jay, and Sapulpa
237 PM CST Fri Feb 12 2021

...WIND CHILL ADVISORY IN EFFECT UNTIL MIDNIGHT CST SATURDAY
NIGHT...
...WINTER STORM WARNING IN EFFECT FROM MIDNIGHT SATURDAY NIGHT TO
6 PM CST MONDAY...

* WHAT...Very cold wind chills tonight thru Monday. Wind chills as
  low as 20 below zero. Heavy snow expected Saturday night thru 
  Monday. Total snow accumulations of 4 to 8 inches.

* WHERE...Portions of northeast Oklahoma.

* WHEN...For the Winter Storm Warning, from midnight Saturday 
  night to 6 PM CST Monday. For the Wind Chill Advisory, until 
  midnight CST Saturday night.

* IMPACTS...Travel could be very difficult to impossible. The very 
  cold wind chills could cause frostbite on exposed skin in as 
  little as 30 minutes.

* ADDITIONAL DETAILS...Strong and gusty north winds will cause
  significant blowing and drifting of snow, and dangerous travel
  conditions. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

Use caution while traveling outside. Wear appropriate clothing, a
hat, and gloves. 

For the latest road conditions call 1-844-465-4997 or go to
okRoads.org.

&&

$$

OKZ049-053-065>076-131100-
/O.UPG.KTSA.WS.A.0003.210214T1200Z-210216T0000Z/
/O.NEW.KTSA.WS.W.0002.210214T0600Z-210216T0000Z/
Pushmataha-Choctaw-Okfuskee-Okmulgee-Wagoner-Cherokee-Adair-
Muskogee-McIntosh-Sequoyah-Pittsburg-Haskell-Latimer-Le Flore-
Including the cities of Antlers, Clayton, Hugo, Okemah, Okmulgee,
Wagoner, Tahlequah, Stilwell, Muskogee, Checotah, Sallisaw, 
McAlester, Stigler, Wilburton, and Poteau
237 PM CST Fri Feb 12 2021

...WINTER STORM WARNING IN EFFECT FROM MIDNIGHT SATURDAY NIGHT TO
6 PM CST MONDAY...

* WHAT...Heavy snow and very low wind chills expected. Total snow
  accumulations of 5 to 7 inches. Wind chills as low as 15 below 
  zero.

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

* WHEN...From midnight Saturday night to 6 PM CST Monday.

* IMPACTS...Travel could be very difficult to impossible. The cold
  wind chills as low as 15 below zero could cause frostbite on 
  exposed skin in as little as 30 minutes.

* ADDITIONAL DETAILS...Strong and gusty north winds will cause
  significant blowing and drifting of snow, and dangerous travel
  conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

For the latest road conditions call 1-844-465-4997 or go to
okRoads.org.

&&

$$

ARZ001-002-010-011-019-020-029-131100-
/O.CON.KTSA.WS.A.0003.210214T1200Z-210216T0000Z/
Benton-Carroll-Washington AR-Madison-Crawford-Franklin-Sebastian-
Including the cities of Rogers, Bentonville, Berryville, 
Eureka Springs, Fayetteville, Springdale, Huntsville, Van Buren, 
Ozark, Charleston, and Fort Smith
237 PM CST Fri Feb 12 2021

...WINTER STORM WATCH REMAINS IN EFFECT FROM SUNDAY MORNING
THROUGH MONDAY AFTERNOON...

* WHAT...Heavy snow and very cold wind chills expected. Total snow
  accumulations of 5 to 7 inches possible. Wind chills as low as 
  15 below zero.

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

* WHEN...From Sunday morning through Monday afternoon.

* IMPACTS...Travel could be very difficult to impossible. The cold
  wind chills as low as 15 below zero could cause frostbite on
  exposed skin in as little as 30 minutes.

* ADDITIONAL DETAILS...Strong and gusty north winds will cause
  significant blowing and drifting of snow, and dangerous travel
  conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts for updates on this situation. 

&&

$$

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
6 follow-up statements
344 
WWUS44 KTSA 130316
WSWTSA

URGENT - WINTER WEATHER MESSAGE
National Weather Service Tulsa OK
916 PM CST Fri Feb 12 2021

...HIGH IMPACT WINTER STORM EXPECTED ACROSS EASTERN OKLAHOMA AND
NORTHWEST ARKANSAS SATURDAY NIGHT THRU MONDAY...

OKZ054>064-131300-
/O.CON.KTSA.WS.W.0002.210214T0600Z-210216T0000Z/
/O.CON.KTSA.WC.Y.0002.000000T0000Z-210214T0600Z/
Osage-Washington OK-Nowata-Craig-Ottawa-Pawnee-Tulsa-Rogers-Mayes-
Delaware-Creek-
Including the cities of Pawhuska, Bartlesville, Nowata, Vinita, 
Miami, Pawnee, Tulsa, Claremore, Pryor, Grove, Jay, and Sapulpa
916 PM CST Fri Feb 12 2021

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT CST
SATURDAY NIGHT...
...WINTER STORM WARNING REMAINS IN EFFECT FROM MIDNIGHT SATURDAY
NIGHT TO 6 PM CST MONDAY...

* WHAT...Very cold wind chills tonight thru Monday. Wind chills 
  as low as 20 below zero. Heavy snow expected Saturday night 
  thru Monday. Total snow accumulations of 4 to 8 inches.

* WHERE...Portions of northeast Oklahoma.

* WHEN...For the Winter Storm Warning, from midnight Saturday 
  night to 6 PM CST Monday. For the Wind Chill Advisory, until 
  midnight CST Saturday night.

* IMPACTS...Travel could be very difficult to impossible. The 
  very cold wind chills could cause frostbite on exposed skin in 
  as little as 30 minutes.

* ADDITIONAL DETAILS...Strong and gusty north winds will cause
  significant blowing and drifting of snow, and dangerous travel
  conditions. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

Use caution while traveling outside. Wear appropriate clothing, a
hat, and gloves. 

For the latest road conditions call 1-844-465-4997 or go to
okRoads.org.

&&

$$

OKZ049-053-065>076-131300-
/O.CON.KTSA.WS.W.0002.210214T0600Z-210216T0000Z/
Pushmataha-Choctaw-Okfuskee-Okmulgee-Wagoner-Cherokee-Adair-
Muskogee-McIntosh-Sequoyah-Pittsburg-Haskell-Latimer-Le Flore-
Including the cities of Antlers, Clayton, Hugo, Okemah, Okmulgee,
Wagoner, Tahlequah, Stilwell, Muskogee, Checotah, Sallisaw, 
McAlester, Stigler, Wilburton, and Poteau
916 PM CST Fri Feb 12 2021

...WINTER STORM WARNING REMAINS IN EFFECT FROM MIDNIGHT SATURDAY
NIGHT TO 6 PM CST MONDAY...

* WHAT...Heavy snow and very low wind chills expected. Total 
  snow accumulations of 5 to 7 inches. Wind chills as low as 15 
  below zero.

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

* WHEN...From midnight Saturday night to 6 PM CST Monday.

* IMPACTS...Travel could be very difficult to impossible. The 
  cold wind chills as low as 15 below zero could cause frostbite 
  on exposed skin in as little as 30 minutes.

* ADDITIONAL DETAILS...Strong and gusty north winds will cause
  significant blowing and drifting of snow, and dangerous travel
  conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

For the latest road conditions call 1-844-465-4997 or go to
okRoads.org.

&&

$$

ARZ001-002-010-011-019-020-029-131300-
/O.CON.KTSA.WS.A.0003.210214T1200Z-210216T0000Z/
Benton-Carroll-Washington AR-Madison-Crawford-Franklin-Sebastian-
Including the cities of Rogers, Bentonville, Berryville, 
Eureka Springs, Fayetteville, Springdale, Huntsville, Van Buren, 
Ozark, Charleston, and Fort Smith
916 PM CST Fri Feb 12 2021

...WINTER STORM WATCH REMAINS IN EFFECT FROM SUNDAY MORNING
THROUGH MONDAY AFTERNOON...

* WHAT...Heavy snow and very cold wind chills expected. Total 
  snow accumulations of 5 to 7 inches possible. Wind chills as 
  low as 15 below zero.

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

* WHEN...From Sunday morning through Monday afternoon.

* IMPACTS...Travel could be very difficult to impossible. The 
  cold wind chills as low as 15 below zero could cause frostbite 
  on exposed skin in as little as 30 minutes.

* ADDITIONAL DETAILS...Strong and gusty north winds will cause
  significant blowing and drifting of snow, and dangerous travel
  conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts for updates on this situation. 

&&

$$

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
831 
WWUS44 KTSA 130940
WSWTSA

URGENT - WINTER WEATHER MESSAGE
National Weather Service Tulsa OK
340 AM CST Sat Feb 13 2021

...HIGH IMPACT WINTER STORM EXPECTED ACROSS EASTERN OKLAHOMA AND
NORTHWEST ARKANSAS SATURDAY NIGHT THROUGH MONDAY...

ARZ001-002-010-011-132300-
/O.UPG.KTSA.WS.A.0003.210214T1200Z-210216T0000Z/
/O.EXB.KTSA.WS.W.0002.210214T1200Z-210216T0000Z/
/O.EXB.KTSA.WC.Y.0002.000000T0000Z-210214T1200Z/
Benton-Carroll-Washington AR-Madison-
Including the cities of Rogers, Bentonville, Berryville, 
Eureka Springs, Fayetteville, Springdale, and Huntsville
340 AM CST Sat Feb 13 2021

...WIND CHILL ADVISORY IN EFFECT UNTIL 6 AM CST SUNDAY...
...WINTER STORM WARNING IN EFFECT FROM 6 AM SUNDAY TO 6 PM CST
MONDAY...

* WHAT...For the Winter Storm Warning, heavy snow and wind chills
  as low as 20 below zero expected Sunday morning through Monday
  afternoon. Total snow accumulations of 4 to 6 inches. For the
  Wind Chill Advisory, very cold wind chills as low as 10 below
  zero expected through late Saturday night.

* WHERE...Benton, Carroll, Washington and Madison Counties in
  northwest Arkansas.

* WHEN...For the Winter Storm Warning, from 6 AM Sunday to 6 PM 
  CST Monday. For the Wind Chill Advisory, until 6 AM CST Sunday.

* IMPACTS...Travel could be very difficult to impossible. The very
  cold wind chills could cause frostbite on exposed skin in as
  little as 30 minutes.

* ADDITIONAL DETAILS...Strong and gusty north winds will cause 
  significant blowing and drifting of snow, and dangerous travel 
  conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

Use caution while traveling outside. Wear appropriate clothing, a
hat, and gloves. 

For the latest road conditions call 1-800-245-1672 or go to
idrivearkansas.com.

&&

$$

ARZ019-020-029-132300-
/O.UPG.KTSA.WS.A.0003.210214T1200Z-210216T0000Z/
/O.EXB.KTSA.WS.W.0002.210214T1200Z-210216T0000Z/
Crawford-Franklin-Sebastian-
Including the cities of Van Buren, Ozark, Charleston, 
and Fort Smith
340 AM CST Sat Feb 13 2021

...WINTER STORM WARNING IN EFFECT FROM 6 AM SUNDAY TO 6 PM CST
MONDAY...

* WHAT...Heavy snow expected. Total snow accumulations of 4 to 6
  inches. Very low wind chill values to 10 below zero also
  expected.

* WHERE...Crawford, Franklin and Sebastian Counties.

* WHEN...From 6 AM Sunday to 6 PM CST Monday.

* IMPACTS...Travel could be very difficult to impossible. The very
  cold wind chills could cause frostbite on exposed skin in as 
  little as 30 minutes. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

For the latest road conditions call 1-800-245-1672 or go to
idrivearkansas.com.

&&

$$

OKZ054>064-132300-
/O.CON.KTSA.WS.W.0002.210214T0600Z-210216T0000Z/
/O.CON.KTSA.WC.Y.0002.000000T0000Z-210214T0600Z/
Osage-Washington OK-Nowata-Craig-Ottawa-Pawnee-Tulsa-Rogers-Mayes-
Delaware-Creek-
Including the cities of Pawhuska, Bartlesville, Nowata, Vinita, 
Miami, Pawnee, Tulsa, Claremore, Pryor, Grove, Jay, and Sapulpa
340 AM CST Sat Feb 13 2021

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT CST
TONIGHT...
...WINTER STORM WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT
TO 6 PM CST MONDAY...

* WHAT...For the Winter Storm Warning, heavy snow and wind chills
  as low as 25 below zero expected early Sunday morning through
  Monday afternoon. Total snow accumulations of 4 to 8 inches. 
  For the Wind Chill Advisory, very cold wind chills as low as 15 
  below zero expected through Saturday evening.

* WHERE...Portions of northeast Oklahoma.

* WHEN...For the Winter Storm Warning, from midnight Saturday 
  night to 6 PM CST Monday. For the Wind Chill Advisory, until 
  midnight CST Saturday night.

* IMPACTS...Travel could be very difficult to impossible. The 
  very cold wind chills could cause frostbite on exposed skin in 
  as little as 30 minutes.

* ADDITIONAL DETAILS...Strong and gusty north winds will cause 
  significant blowing and drifting of snow, and dangerous travel 
  conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency.

Use caution while traveling outside. Wear appropriate clothing, a
hat, and gloves.

For the latest road conditions call 1-844-465-4997 or go to
okRoads.org.

&&

$$

OKZ049-053-065>076-132300-
/O.CON.KTSA.WS.W.0002.210214T0600Z-210216T0000Z/
Pushmataha-Choctaw-Okfuskee-Okmulgee-Wagoner-Cherokee-Adair-
Muskogee-McIntosh-Sequoyah-Pittsburg-Haskell-Latimer-Le Flore-
Including the cities of Antlers, Clayton, Hugo, Okemah, Okmulgee,
Wagoner, Tahlequah, Stilwell, Muskogee, Checotah, Sallisaw, 
McAlester, Stigler, Wilburton, and Poteau
340 AM CST Sat Feb 13 2021

...WINTER STORM WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT
TO 6 PM CST MONDAY...

* WHAT...Heavy snow expected. Total snow accumulations of 4 to 8
  inches. Very low wind chill values to 15 below zero also
  expected.

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

* WHEN...From midnight Saturday night to 6 PM CST Monday.

* IMPACTS...Travel could be very difficult to impossible. The very
  cold wind chills could cause frostbite on exposed skin in as 
  little as 30 minutes.

* ADDITIONAL DETAILS...Strong and gusty north winds will cause 
  significant blowing and drifting of snow, and dangerous travel 
  conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency.

For the latest road conditions call 1-844-465-4997 or go to
okRoads.org.

&&

$$

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
409 
WWUS44 KTSA 131921
WSWTSA

URGENT - WINTER WEATHER MESSAGE
National Weather Service Tulsa OK
121 PM CST Sat Feb 13 2021

...HIGH IMPACT WINTER STORM EXPECTED ACROSS EASTERN OKLAHOMA AND
NORTHWEST ARKANSAS TONIGHT THROUGH MONDAY...

OKZ054>064-141100-
/O.CAN.KTSA.WC.Y.0002.000000T0000Z-210214T0600Z/
/O.CON.KTSA.WS.W.0002.210214T0600Z-210216T0000Z/
Osage-Washington OK-Nowata-Craig-Ottawa-Pawnee-Tulsa-Rogers-Mayes-
Delaware-Creek-
Including the cities of Pawhuska, Bartlesville, Nowata, Vinita, 
Miami, Pawnee, Tulsa, Claremore, Pryor, Grove, Jay, and Sapulpa
121 PM CST Sat Feb 13 2021

...WINTER STORM WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT
TO 6 PM CST MONDAY...
...WIND CHILL ADVISORY FOR THIS AFTERNOON IS CANCELLED...

* WHAT...Heavy snow expected. Total snow accumulations of 5 to 8 
  inches.

* WHERE...Portions of northeast Oklahoma.

* WHEN...From midnight tonight to 6 PM CST Monday.

* IMPACTS...Travel could become very dangerous. Blowing snow could
  significantly reduce visibility. The cold wind chills as low as
  25 below zero could cause frostbite on exposed skin in as 
  little as 30 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

For the latest road conditions call 1-844-465-4997 or go to
okRoads.org.

&&

$$

ARZ001-002-010-011-141100-
/O.CON.KTSA.WS.W.0002.210214T1200Z-210216T0000Z/
/O.CON.KTSA.WC.Y.0002.000000T0000Z-210214T1200Z/
Benton-Carroll-Washington AR-Madison-
Including the cities of Rogers, Bentonville, Berryville, 
Eureka Springs, Fayetteville, Springdale, and Huntsville
121 PM CST Sat Feb 13 2021

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 6 AM CST SUNDAY...
...WINTER STORM WARNING REMAINS IN EFFECT FROM 6 AM SUNDAY TO
6 PM CST MONDAY...

* WHAT...Very cold wind chills. Wind chills as low as 10 below
  zero tonight. Heavy snow expected Sunday. Total snow
  accumulations of 3 to 6 inches.

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

* WHEN...For the Wind Chill Advisory, until 6 AM CST Sunday. For 
  the Winter Storm Warning, from 6 AM Sunday to 6 PM CST Monday. 

* IMPACTS...Travel could become very dangerous. Blowing snow could
  significantly reduce visibility. The cold wind chills as low as
  20 below zero could cause frostbite on exposed skin in as 
  little as 30 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

Use caution while traveling outside. Wear appropriate clothing, a
hat, and gloves. 

For the latest road conditions call 1-800-245-1672 or go to
idrivearkansas.com.

&&

$$

OKZ049-053-065>076-141100-
/O.CON.KTSA.WS.W.0002.210214T0600Z-210216T0000Z/
Pushmataha-Choctaw-Okfuskee-Okmulgee-Wagoner-Cherokee-Adair-
Muskogee-McIntosh-Sequoyah-Pittsburg-Haskell-Latimer-Le Flore-
Including the cities of Antlers, Clayton, Hugo, Okemah, Okmulgee,
Wagoner, Tahlequah, Stilwell, Muskogee, Checotah, Sallisaw, 
McAlester, Stigler, Wilburton, and Poteau
121 PM CST Sat Feb 13 2021

...WINTER STORM WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT
TO 6 PM CST MONDAY...

* WHAT...Heavy snow expected. Total snow accumulations of 4 to 6 
  inches.

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

* WHEN...From midnight tonight to 6 PM CST Monday.

* IMPACTS...Travel could become very dangerous. Blowing snow could
  significantly reduce visibility. The cold wind chills as low as
  20 below zero could cause frostbite on exposed skin in as 
  little as 30 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

For the latest road conditions call 1-844-465-4997 or go to
okRoads.org.

&&

$$

ARZ019-020-029-141100-
/O.CON.KTSA.WS.W.0002.210214T1200Z-210216T0000Z/
Crawford-Franklin-Sebastian-
Including the cities of Van Buren, Ozark, Charleston, 
and Fort Smith
121 PM CST Sat Feb 13 2021

...WINTER STORM WARNING REMAINS IN EFFECT FROM 6 AM SUNDAY TO
6 PM CST MONDAY...

* WHAT...Heavy snow expected. Total snow accumulations of up to 4
  inches.

* WHERE...Crawford, Sebastian and Franklin Counties.

* WHEN...From 6 AM Sunday to 6 PM CST Monday.

* IMPACTS...Travel could become dangerous. Blowing snow could 
  significantly reduce visibility. The cold wind chills as low as 
  15 below zero could result in hypothermia if precautions are not
  taken.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

For the latest road conditions call 1-800-245-1672 or go to
idrivearkansas.com.

&&

$$

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
487 
WWUS44 KTSA 140346
WSWTSA

URGENT - WINTER WEATHER MESSAGE
National Weather Service Tulsa OK
946 PM CST Sat Feb 13 2021

...HIGH IMPACT WINTER STORM EXPECTED ACROSS EASTERN OKLAHOMA AND
NORTHWEST ARKANSAS TONIGHT THROUGH MONDAY...

ARZ001-002-010-011-141200-
/O.CON.KTSA.WS.W.0002.210214T1200Z-210216T0000Z/
/O.CON.KTSA.WC.Y.0002.000000T0000Z-210214T1200Z/
Benton-Carroll-Washington AR-Madison-
Including the cities of Rogers, Bentonville, Berryville, 
Eureka Springs, Fayetteville, Springdale, and Huntsville
946 PM CST Sat Feb 13 2021

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 6 AM CST SUNDAY...
...WINTER STORM WARNING REMAINS IN EFFECT FROM 6 AM SUNDAY TO
6 PM CST MONDAY...

* WHAT...Very cold wind chills. Wind chills as low as 10 below 
  zero tonight. Heavy snow expected Sunday. Total snow 
  accumulations of 3 to 6 inches.

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

* WHEN...For the Wind Chill Advisory, until 6 AM CST Sunday. For 
  the Winter Storm Warning, from 6 AM Sunday to 6 PM CST Monday.

* IMPACTS...Travel could become very dangerous. Blowing snow 
  could significantly reduce visibility. The cold wind chills as 
  low as 20 below zero could cause frostbite on exposed skin in 
  as little as 30 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency.

Use caution while traveling outside. Wear appropriate clothing, a
hat, and gloves.

For the latest road conditions call 1-800-245-1672 or go to
idrivearkansas.com.

&&

$$

OKZ049-053>076-141200-
/O.CON.KTSA.WS.W.0002.210214T0600Z-210216T0000Z/
Pushmataha-Choctaw-Osage-Washington OK-Nowata-Craig-Ottawa-Pawnee-
Tulsa-Rogers-Mayes-Delaware-Creek-Okfuskee-Okmulgee-Wagoner-
Cherokee-Adair-Muskogee-McIntosh-Sequoyah-Pittsburg-Haskell-
Latimer-Le Flore-
Including the cities of Antlers, Clayton, Hugo, Pawhuska, 
Bartlesville, Nowata, Vinita, Miami, Pawnee, Tulsa, Claremore, 
Pryor, Grove, Jay, Sapulpa, Okemah, Okmulgee, Wagoner, Tahlequah,
Stilwell, Muskogee, Checotah, Sallisaw, McAlester, Stigler, 
Wilburton, and Poteau
946 PM CST Sat Feb 13 2021

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM CST MONDAY...

* WHAT...Heavy snow expected. Total snow accumulations of 5 to 8 
  inches.

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

* WHEN...From midnight tonight to 6 PM CST Monday.

* IMPACTS...Travel could become very dangerous. Blowing snow could
  significantly reduce visibility. The cold wind chills as low as
  25 below zero could cause frostbite on exposed skin in as little
  as 30 minutes. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency.

For the latest road conditions call 1-844-465-4997 or go to
okRoads.org.

&&

$$

ARZ019-020-029-141200-
/O.CON.KTSA.WS.W.0002.210214T1200Z-210216T0000Z/
Crawford-Franklin-Sebastian-
Including the cities of Van Buren, Ozark, Charleston, 
and Fort Smith
946 PM CST Sat Feb 13 2021

...WINTER STORM WARNING REMAINS IN EFFECT FROM 6 AM SUNDAY TO
6 PM CST MONDAY...

* WHAT...Heavy snow expected. Total snow accumulations of up to 
  4 inches.

* WHERE...Crawford, Sebastian and Franklin Counties.

* WHEN...From 6 AM Sunday to 6 PM CST Monday.

* IMPACTS...Travel could become dangerous. Blowing snow could 
  significantly reduce visibility. The cold wind chills as low 
  as 15 below zero could result in hypothermia if precautions 
  are not taken.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency.

For the latest road conditions call 1-800-245-1672 or go to
idrivearkansas.com.

&&

$$

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
681 
WWUS44 KTSA 140957
WSWTSA

URGENT - WINTER WEATHER MESSAGE
National Weather Service Tulsa OK
357 AM CST Sun Feb 14 2021

...HIGH IMPACT WINTER STORM EXPECTED ACROSS EASTERN OKLAHOMA AND
NORTHWEST ARKANSAS TONIGHT THROUGH MONDAY...

ARZ001-002-010-011-141800-
/O.CON.KTSA.WS.W.0002.210214T1200Z-210216T0000Z/
/O.CON.KTSA.WC.Y.0002.000000T0000Z-210214T1200Z/
Benton-Carroll-Washington AR-Madison-
Including the cities of Rogers, Bentonville, Berryville, 
Eureka Springs, Fayetteville, Springdale, and Huntsville
357 AM CST Sun Feb 14 2021

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 6 AM CST EARLY
THIS MORNING...
...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM CST MONDAY...

* WHAT...Very cold wind chills. Wind chills as low as 10 below
  zero early Sunday morning and as low as 20 below by early Monday
  morning. Heavy snow expected Sunday and Sunday night. Total 
  snow accumulations of 3 to 6 inches. Locally higher amounts 
  possible in Benton County.

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

* WHEN...For the Wind Chill Advisory, until 6 AM CST Sunday. For 
  the Winter Storm Warning, from 6 AM Sunday to 6 PM CST Monday.

* IMPACTS...Travel could become very dangerous. Blowing snow could
  significantly reduce visibility. The cold wind chills as low as
  20 below zero could cause frostbite on exposed skin in as little
  as 30 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency.

Use caution while traveling outside. Wear appropriate clothing, a
hat, and gloves.

For the latest road conditions call 1-800-245-1672 or go to
idrivearkansas.com.

&&

$$

OKZ049-053>076-141800-
/O.CON.KTSA.WS.W.0002.000000T0000Z-210216T0000Z/
Pushmataha-Choctaw-Osage-Washington OK-Nowata-Craig-Ottawa-Pawnee-
Tulsa-Rogers-Mayes-Delaware-Creek-Okfuskee-Okmulgee-Wagoner-
Cherokee-Adair-Muskogee-McIntosh-Sequoyah-Pittsburg-Haskell-
Latimer-Le Flore-
Including the cities of Antlers, Clayton, Hugo, Pawhuska, 
Bartlesville, Nowata, Vinita, Miami, Pawnee, Tulsa, Claremore, 
Pryor, Grove, Jay, Sapulpa, Okemah, Okmulgee, Wagoner, Tahlequah,
Stilwell, Muskogee, Checotah, Sallisaw, McAlester, Stigler, 
Wilburton, and Poteau
357 AM CST Sun Feb 14 2021

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM CST MONDAY...

* WHAT...Heavy snow expected. Total snow accumulations of 5 to 8
  inches. Locally higher amounts possible. Very cold wind chills
  as low as 20 to 25 below zero also expected by early Monday
  morning.

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

* WHEN...Through 6 PM CST Monday.

* IMPACTS...Travel could become very dangerous. Blowing snow could
  significantly reduce visibility. The cold wind chills as low as
  25 below zero could cause frostbite on exposed skin in as little
  as 30 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency.

For the latest road conditions call 1-844-465-4997 or go to
okRoads.org.

&&

$$

ARZ019-020-029-141800-
/O.CON.KTSA.WS.W.0002.210214T1200Z-210216T0000Z/
Crawford-Franklin-Sebastian-
Including the cities of Van Buren, Ozark, Charleston, 
and Fort Smith
357 AM CST Sun Feb 14 2021

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM CST MONDAY...

* WHAT...Heavy snow expected. Total snow accumulations of up to 4
  inches. Very low wind chills as low as 10 to 15 below zero are
  also expected by early Monday morning.

* WHERE...Crawford, Sebastian and Franklin Counties.

* WHEN...From 6 AM Sunday to 6 PM CST Monday.

* IMPACTS...Travel could become dangerous. Blowing snow could
  significantly reduce visibility. The cold wind chills as low as
  15 below zero could result in hypothermia if precautions are not
  taken.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency.

For the latest road conditions call 1-800-245-1672 or go to
idrivearkansas.com.

&&

$$

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
548 
WWUS44 KTSA 141158
WSWTSA

URGENT - WINTER WEATHER MESSAGE
National Weather Service Tulsa OK
558 AM CST Sun Feb 14 2021

...HIGH IMPACT WINTER STORM EXPECTED ACROSS EASTERN OKLAHOMA AND
NORTHWEST ARKANSAS TONIGHT THROUGH MONDAY...

ARZ001-002-010-011-142200-
/O.EXP.KTSA.WC.Y.0002.000000T0000Z-210214T1200Z/
/O.CON.KTSA.WS.W.0002.210214T1200Z-210216T0000Z/
Benton-Carroll-Washington AR-Madison-
Including the cities of Rogers, Bentonville, Berryville, 
Eureka Springs, Fayetteville, Springdale, and Huntsville
558 AM CST Sun Feb 14 2021

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM CST MONDAY...
...WIND CHILL ADVISORY WILL EXPIRE AT 6 AM CST EARLY THIS
MORNING...

* WHAT...Heavy snow expected. Total snow accumulations of 3 to 6
  inches, with locally higher amounts possible in Benton County. 
  Very cold wind chills as low as 20 below by early Monday 
  morning.

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

* WHEN...For the Winter Storm Warning, through 6 PM CST Monday.

* IMPACTS...Travel could be very difficult to impossible. Patchy 
  blowing snow could significantly reduce visibility. The 
  hazardous conditions could impact the morning or evening 
  commute. The cold wind chills as low as 20 below zero could 
  cause frostbite on exposed skin in as little as 30 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

For the latest road conditions call 1-800-245-1672 or go to
idrivearkansas.com.

&&

$$

ARZ019-020-029-142200-
/O.CON.KTSA.WS.W.0002.210214T1200Z-210216T0000Z/
Crawford-Franklin-Sebastian-
Including the cities of Van Buren, Ozark, Charleston, 
and Fort Smith
558 AM CST Sun Feb 14 2021

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM CST MONDAY...

* WHAT...Heavy snow expected. Total snow accumulations of up to 
  4 inches. Very low wind chills as low as 10 to 15 below zero 
  are also expected by early Monday morning.

* WHERE...Crawford, Sebastian and Franklin Counties.

* WHEN...From 6 AM Sunday to 6 PM CST Monday.

* IMPACTS...Travel could become dangerous. Blowing snow could 
  significantly reduce visibility. The cold wind chills as low 
  as 15 below zero could result in hypothermia if precautions 
  are not taken.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency.

For the latest road conditions call 1-800-245-1672 or go to
idrivearkansas.com.

&&

$$

OKZ049-053>076-142200-
/O.CON.KTSA.WS.W.0002.000000T0000Z-210216T0000Z/
Pushmataha-Choctaw-Osage-Washington OK-Nowata-Craig-Ottawa-Pawnee-
Tulsa-Rogers-Mayes-Delaware-Creek-Okfuskee-Okmulgee-Wagoner-
Cherokee-Adair-Muskogee-McIntosh-Sequoyah-Pittsburg-Haskell-
Latimer-Le Flore-
Including the cities of Antlers, Clayton, Hugo, Pawhuska, 
Bartlesville, Nowata, Vinita, Miami, Pawnee, Tulsa, Claremore, 
Pryor, Grove, Jay, Sapulpa, Okemah, Okmulgee, Wagoner, Tahlequah,
Stilwell, Muskogee, Checotah, Sallisaw, McAlester, Stigler, 
Wilburton, and Poteau
558 AM CST Sun Feb 14 2021

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM CST MONDAY...

* WHAT...Heavy snow expected. Total snow accumulations of 5 to 8 
  inches. Locally higher amounts possible. Very cold wind chills 
  as low as 20 to 25 below zero also expected by early Monday 
  morning.

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

* WHEN...Through 6 PM CST Monday.

* IMPACTS...Travel could become very dangerous. Blowing snow 
  could significantly reduce visibility. The cold wind chills as 
  low as 25 below zero could cause frostbite on exposed skin in 
  as little as 30 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency.

For the latest road conditions call 1-844-465-4997 or go to
okRoads.org.

&&

$$

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
Feb 12, 3:33 AM CSTWinter Storm WatchTSAAdair, Cherokee, Choctaw, Craig, Creek, Delaware and 16 more24 hr
Feb 12, 2:37 PM CSTWinter Storm WarningTSAAdair, Cherokee, Choctaw, Craig, Creek, Delaware and 16 more69 hr

Nearby

Wind Chill Advisories in Oklahoma, 2021Wind Chill Advisories in Arkansas, 2021Every wind chill advisory 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.