Alert archive / Oklahoma / Freeze Warnings in 2021
Freeze Warning 3, NWS Tulsa, OK
NWS Tulsa, OK issued this freeze warning at Apr 19, 2021, 2:20 PM CDT for 4 counties in Arkansas; 22 counties in Oklahoma. It took effect at Apr 20, 2021, 11:00 PM CDT. It was in force for 10 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
- Apr 19, 2021, 2:20 PM CDT (19:20 UTC)
- In effect from
- Apr 20, 2021, 11:00 PM CDT
- Expired
- Apr 21, 2021, 9:00 AM CDT
- In force
- 10 hr
- Issued by
- NWS Tulsa, OK
All 26 counties
Benton County, AR, Carroll County, AR, Madison County, AR, Washington County, AR, Adair County, OK, Cherokee County, OK, Choctaw County, OK, Craig County, OK, Creek County, OK, Delaware County, OK, Haskell County, OK, Latimer County, OK, Mayes County, OK, McIntosh County, OK, Muskogee County, OK, Nowata County, OK, Okfuskee County, OK, Okmulgee County, OK, Ottawa County, OK, Pawnee County, OK, Pittsburg County, OK, Pushmataha County, OK, Rogers County, OK, Tulsa County, OK, Wagoner County, OK, Washington County, OK
The radar
The Tulsa radar (KINX), 42 km from the middle of the area, began a volume at 19:20 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, 7.3 hours before the alert went out and 176 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1594 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- 100 m²/s²
- 0-3 km storm-relative helicity
- 127 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
566 WWUS74 KTSA 191920 NPWTSA URGENT - WEATHER MESSAGE National Weather Service Tulsa OK 220 PM CDT Mon Apr 19 2021 ARZ001-002-010-011-OKZ058-063-201100- /O.UPG.KTSA.FZ.A.0003.210421T0600Z-210421T1400Z/ /O.NEW.KTSA.FZ.W.0003.210421T0600Z-210421T1400Z/ Benton-Carroll-Washington AR-Madison-Ottawa-Delaware- Including the cities of Rogers, Bentonville, Berryville, Eureka Springs, Fayetteville, Springdale, Huntsville, Miami, Grove, and Jay 220 PM CDT Mon Apr 19 2021 ...FREEZE WARNING IN EFFECT FROM 1 AM TO 9 AM CDT WEDNESDAY... * WHAT...Sub-freezing temperatures as low as 26 degrees expected. * WHERE...In Oklahoma, Ottawa and Delaware Counties. In Arkansas, Benton, Carroll, Washington AR and Madison Counties. * WHEN...From 1 AM to 9 AM CDT Wednesday. * IMPACTS...These conditions will kill plants and other tender vegetation that are left outdoors or unprotected. PRECAUTIONARY/PREPAREDNESS ACTIONS... Precautions should be taken to protect small plants and tender vegetation. && $$ ARZ019-020-029-OKZ054>057-059>062-064>076-201100- /O.CON.KTSA.FZ.A.0003.210421T0600Z-210421T1400Z/ Crawford-Franklin-Sebastian-Osage-Washington OK-Nowata-Craig- Pawnee-Tulsa-Rogers-Mayes-Creek-Okfuskee-Okmulgee-Wagoner- Cherokee-Adair-Muskogee-McIntosh-Sequoyah-Pittsburg-Haskell- Latimer-Le Flore- Including the cities of Van Buren, Ozark, Charleston, Fort Smith, Pawhuska, Bartlesville, Nowata, Vinita, Pawnee, Tulsa, Claremore, Pryor, Sapulpa, Okemah, Okmulgee, Wagoner, Tahlequah, Stilwell, Muskogee, Checotah, Sallisaw, McAlester, Stigler, Wilburton, and Poteau 220 PM CDT Mon Apr 19 2021 ...FREEZE WATCH REMAINS IN EFFECT FROM LATE TUESDAY NIGHT THROUGH WEDNESDAY MORNING... * WHAT...Sub-freezing temperatures as low as 26 degrees possible. Temperatures in the Tulsa metro and Fort Smith area could fall into the 30-32 degree range. * WHERE...Portions of east central, northeast and southeast Oklahoma and northwest and west central Arkansas. * WHEN...From late Tuesday night through Wednesday morning. * IMPACTS...These conditions could kill plants and and other tender vegetation that are left outdoors or unprotected. PRECAUTIONARY/PREPAREDNESS ACTIONS... Precautions should be taken to protect small plants and tender vegetation. && $$ 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
123 WWUS74 KTSA 200236 NPWTSA URGENT - WEATHER MESSAGE National Weather Service Tulsa OK 936 PM CDT Mon Apr 19 2021 ARZ001-002-010-011-OKZ058-063-201045- /O.CON.KTSA.FZ.W.0003.210421T0600Z-210421T1400Z/ Benton-Carroll-Washington AR-Madison-Ottawa-Delaware- Including the cities of Rogers, Bentonville, Berryville, Eureka Springs, Fayetteville, Springdale, Huntsville, Miami, Grove, and Jay 936 PM CDT Mon Apr 19 2021 ...FREEZE WARNING REMAINS IN EFFECT FROM 1 AM TO 9 AM CDT WEDNESDAY... * WHAT...Sub-freezing temperatures as low as 26 degrees expected. * WHERE...In Oklahoma, Ottawa and Delaware Counties. In Arkansas, Benton, Carroll, Washington AR and Madison Counties. * WHEN...From 1 AM to 9 AM CDT Wednesday. * IMPACTS...These conditions will kill plants and other tender vegetation that are left outdoors or unprotected. PRECAUTIONARY/PREPAREDNESS ACTIONS... Outdoor water pipes should be wrapped, drained, or allowed to run in a slow steady stream. Precautions should also be taken to protect small plants and tender vegetation. && $$ ARZ019-020-029-OKZ054>057-059>062-064>076-201045- /O.CON.KTSA.FZ.A.0003.210421T0600Z-210421T1400Z/ Crawford-Franklin-Sebastian-Osage-Washington OK-Nowata-Craig- Pawnee-Tulsa-Rogers-Mayes-Creek-Okfuskee-Okmulgee-Wagoner- Cherokee-Adair-Muskogee-McIntosh-Sequoyah-Pittsburg-Haskell- Latimer-Le Flore- Including the cities of Van Buren, Ozark, Charleston, Fort Smith, Pawhuska, Bartlesville, Nowata, Vinita, Pawnee, Tulsa, Claremore, Pryor, Sapulpa, Okemah, Okmulgee, Wagoner, Tahlequah, Stilwell, Muskogee, Checotah, Sallisaw, McAlester, Stigler, Wilburton, and Poteau 936 PM CDT Mon Apr 19 2021 ...FREEZE WATCH REMAINS IN EFFECT FROM LATE TUESDAY NIGHT THROUGH WEDNESDAY MORNING... * WHAT...Sub-freezing temperatures as low as 26 degrees possible. Temperatures in the Tulsa metro and Fort Smith area could fall into the 30-32 degree range. * WHERE...Portions of east central, northeast and southeast Oklahoma and northwest and west central Arkansas. * WHEN...From late Tuesday night through Wednesday morning. * IMPACTS...These conditions could kill plants and and other tender vegetation that are left outdoors or unprotected. PRECAUTIONARY/PREPAREDNESS ACTIONS... Outdoor water pipes should be wrapped, drained, or allowed to run in a slow steady stream. Precautions should also be taken to protect small plants and tender vegetation. && $$ 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
713 WWUS74 KTSA 200805 NPWTSA URGENT - WEATHER MESSAGE National Weather Service Tulsa OK 305 AM CDT Tue Apr 20 2021 ARZ019-020-029-OKZ054>057-059>062-064>076-201615- /O.UPG.KTSA.FZ.A.0003.210421T0600Z-210421T1400Z/ /O.EXA.KTSA.FZ.W.0003.210421T0600Z-210421T1400Z/ Crawford-Franklin-Sebastian-Osage-Washington OK-Nowata-Craig- Pawnee-Tulsa-Rogers-Mayes-Creek-Okfuskee-Okmulgee-Wagoner- Cherokee-Adair-Muskogee-McIntosh-Sequoyah-Pittsburg-Haskell- Latimer-Le Flore- Including the cities of Van Buren, Ozark, Charleston, Fort Smith, Pawhuska, Bartlesville, Nowata, Vinita, Pawnee, Tulsa, Claremore, Pryor, Sapulpa, Okemah, Okmulgee, Wagoner, Tahlequah, Stilwell, Muskogee, Checotah, Sallisaw, McAlester, Stigler, Wilburton, and Poteau 305 AM CDT Tue Apr 20 2021 ...FREEZE WARNING IN EFFECT FROM 1 AM TO 9 AM CDT WEDNESDAY... * WHAT...Sub-freezing temperatures as low as 26 degrees possible. Temperatures in the Tulsa metro and Fort Smith area will likely fall into the 30-32 degree range. * WHERE...Portions of east central, northeast and southeast Oklahoma and northwest and west central Arkansas. * WHEN...From 1 AM to 9 AM CDT Wednesday. * IMPACTS...These conditions could kill plants and and other tender vegetation that are left outdoors or unprotected. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you have plants, small trees or other tender vegetation which could be harmed by a freeze, take the time now to protect them. Potted plants normally left outdoors should be covered or brought inside away from the cold. Also be sure to bring your small pets indoors. Outdoor pets should have a warm, dry shelter with sufficient food and fresh water. && $$ OKZ049-053-201615- /O.EXA.KTSA.FZ.W.0003.210421T0600Z-210421T1400Z/ Pushmataha-Choctaw- Including the cities of Antlers, Clayton, and Hugo 305 AM CDT Tue Apr 20 2021 ...FREEZE WARNING IN EFFECT FROM 1 AM TO 9 AM CDT WEDNESDAY... * WHAT...Sub-freezing temperatures as low as 29 degrees expected. * WHERE...Pushmataha and Choctaw Counties. * WHEN...From 1 AM to 9 AM CDT Wednesday. * IMPACTS...These conditions will kill plants and other tender vegetation that are left outdoors or unprotected. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you have plants, small trees or other tender vegetation which could be harmed by a freeze, take the time now to protect them. Potted plants normally left outdoors should be covered or brought inside away from the cold. Also be sure to bring your small pets indoors. Outdoor pets should have a warm, dry shelter with sufficient food and fresh water. && $$ ARZ001-002-010-011-OKZ058-063-201615- /O.CON.KTSA.FZ.W.0003.210421T0600Z-210421T1400Z/ Benton-Carroll-Washington AR-Madison-Ottawa-Delaware- Including the cities of Rogers, Bentonville, Berryville, Eureka Springs, Fayetteville, Springdale, Huntsville, Miami, Grove, and Jay 305 AM CDT Tue Apr 20 2021 ...FREEZE WARNING REMAINS IN EFFECT FROM 1 AM TO 9 AM CDT WEDNESDAY... * WHAT...Sub-freezing temperatures as low as 26 degrees expected. Some valley locations in northwest Arkansas could see a killing freeze, with temperatures as low as 24 degrees. * WHERE...In Oklahoma, Ottawa and Delaware Counties. In Arkansas, Benton, Carroll, Washington AR and Madison Counties. * WHEN...From 1 AM to 9 AM CDT Wednesday. * IMPACTS...These conditions will kill plants and other tender vegetation that are left outdoors or unprotected. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you have plants, small trees or other tender vegetation which could be harmed by a freeze, take the time now to protect them. Potted plants normally left outdoors should be covered or brought inside away from the cold. Also be sure to bring your small pets indoors. Outdoor pets should have a warm, dry shelter with sufficient food and fresh water. && $$ Stay tuned to NOAA weather radio,commercial radio or television for the latest information,forecasts,and warnings. For more information from the National Weather Service visit https://weather.gov/tsa
503 WWUS74 KTSA 201912 NPWTSA URGENT - WEATHER MESSAGE National Weather Service Tulsa OK 212 PM CDT Tue Apr 20 2021 ARZ001-002-010-011-019-020-029-OKZ049-053>076-211400- /O.EXT.KTSA.FZ.W.0003.210421T0400Z-210421T1400Z/ Benton-Carroll-Washington AR-Madison-Crawford-Franklin-Sebastian- Pushmataha-Choctaw-Osage-Washington OK-Nowata-Craig-Ottawa-Pawnee- Tulsa-Rogers-Mayes-Delaware-Creek-Okfuskee-Okmulgee-Wagoner- Cherokee-Adair-Muskogee-McIntosh-Sequoyah-Pittsburg-Haskell- Latimer-Le Flore- Including the cities of Rogers, Bentonville, Berryville, Eureka Springs, Fayetteville, Springdale, Huntsville, Van Buren, Ozark, Charleston, Fort Smith, Antlers, Clayton, Hugo, Pawhuska, Bartlesville, Nowata, Vinita, Miami, Pawnee, Tulsa, Claremore, Pryor, Grove, Jay, Sapulpa, Okemah, Okmulgee, Wagoner, Tahlequah, Stilwell, Muskogee, Checotah, Sallisaw, McAlester, Stigler, Wilburton, and Poteau 212 PM CDT Tue Apr 20 2021 ...FREEZE WARNING NOW IN EFFECT FROM 11 PM THIS EVENING TO 9 AM CDT WEDNESDAY... * WHAT...Sub-freezing temperatures as low as the mid 20s expected. * WHERE...Portions of east central, northeast and southeast Oklahoma and northwest and west central Arkansas. * WHEN...From 11 PM this evening to 9 AM CDT Wednesday. * IMPACTS...These conditions will kill plants and other tender vegetation that are left outdoors or unprotected. PRECAUTIONARY/PREPAREDNESS ACTIONS... Precautions should also be taken to protect small plants and tender vegetation. && $$ 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
622 WWUS74 KTSA 210841 NPWTSA URGENT - WEATHER MESSAGE National Weather Service Tulsa OK 341 AM CDT Wed Apr 21 2021 ARZ001-002-010-011-OKZ056>058-063-069-211645- /O.NEW.KTSA.FR.Y.0001.210422T0600Z-210422T1300Z/ /O.CON.KTSA.FZ.W.0003.000000T0000Z-210421T1400Z/ Benton-Carroll-Washington AR-Madison-Nowata-Craig-Ottawa-Delaware- Adair- Including the cities of Rogers, Bentonville, Berryville, Eureka Springs, Fayetteville, Springdale, Huntsville, Nowata, Vinita, Miami, Grove, Jay, and Stilwell 341 AM CDT Wed Apr 21 2021 ...FREEZE WARNING REMAINS IN EFFECT UNTIL 9 AM CDT THIS MORNING... ...FROST ADVISORY IN EFFECT FROM 1 AM TO 8 AM CDT THURSDAY... * WHAT...For the Freeze Warning today, sub-freezing temperatures as low as the mid 20s. For the Frost Advisory tonight, temperatures as low as 32 will result in frost formation. * WHERE...In Oklahoma, Nowata, Craig, Ottawa, Delaware and Adair Counties. In Arkansas, Benton, Carroll, Washington AR and Madison Counties. * WHEN...For the Freeze Warning, until 9 AM CDT this morning. For the Frost Advisory, from 1 AM to 8 AM CDT Thursday. * IMPACTS...These conditions will kill plants and other tender vegetation that are left outdoors or unprotected. PRECAUTIONARY/PREPAREDNESS ACTIONS... Precautions should also be taken to protect small plants and tender vegetation. && $$ ARZ019-020-029-OKZ049-053>055-059>062-064>068-070>076-211400- /O.CON.KTSA.FZ.W.0003.000000T0000Z-210421T1400Z/ Crawford-Franklin-Sebastian-Pushmataha-Choctaw-Osage- Washington OK-Pawnee-Tulsa-Rogers-Mayes-Creek-Okfuskee-Okmulgee- Wagoner-Cherokee-Muskogee-McIntosh-Sequoyah-Pittsburg-Haskell- Latimer-Le Flore- Including the cities of Van Buren, Ozark, Charleston, Fort Smith, Antlers, Clayton, Hugo, Pawhuska, Bartlesville, Pawnee, Tulsa, Claremore, Pryor, Sapulpa, Okemah, Okmulgee, Wagoner, Tahlequah, Muskogee, Checotah, Sallisaw, McAlester, Stigler, Wilburton, and Poteau 341 AM CDT Wed Apr 21 2021 ...FREEZE WARNING REMAINS IN EFFECT UNTIL 9 AM CDT THIS MORNING... * WHAT...Sub-freezing temperatures as low as the mid 20s expected. * WHERE...Portions of east central, northeast and southeast Oklahoma and northwest and west central Arkansas. * WHEN...From 11 PM this evening to 9 AM CDT Wednesday. * IMPACTS...These conditions will kill plants and other tender vegetation that are left outdoors or unprotected. PRECAUTIONARY/PREPAREDNESS ACTIONS... Precautions should also be taken to protect small plants and tender vegetation. && $$ 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
150 WWUS74 KTSA 211354 NPWTSA URGENT - WEATHER MESSAGE National Weather Service Tulsa OK 854 AM CDT Wed Apr 21 2021 ARZ001-002-010-011-OKZ056>058-063-069-212200- /O.EXP.KTSA.FZ.W.0003.000000T0000Z-210421T1400Z/ /O.CON.KTSA.FR.Y.0001.210422T0600Z-210422T1300Z/ Benton-Carroll-Washington AR-Madison-Nowata-Craig-Ottawa-Delaware- Adair- Including the cities of Rogers, Bentonville, Berryville, Eureka Springs, Fayetteville, Springdale, Huntsville, Nowata, Vinita, Miami, Grove, Jay, and Stilwell 854 AM CDT Wed Apr 21 2021 ...FROST ADVISORY REMAINS IN EFFECT FROM 1 AM TO 8 AM CDT THURSDAY... ...FREEZE WARNING WILL EXPIRE AT 9 AM CDT THIS MORNING... * WHAT...Temperatures as low as 33 will result in frost formation tonight into Thursday morning. * WHERE...In Oklahoma, Nowata, Craig, Ottawa, Delaware and Adair Counties. In Arkansas, Benton, Carroll, Washington AR and Madison Counties. * WHEN...For the Frost Advisory, from 1 AM to 8 AM CDT Thursday. * IMPACTS...Sensitive outdoor plants may be killed if left unprotected from the cold. PRECAUTIONARY/PREPAREDNESS ACTIONS... Cover outdoor plants or bring them indoors. && $$ ARZ019-020-029-OKZ049-053>055-059>062-064>068-070>076-211500- /O.EXP.KTSA.FZ.W.0003.000000T0000Z-210421T1400Z/ Crawford-Franklin-Sebastian-Pushmataha-Choctaw-Osage- Washington OK-Pawnee-Tulsa-Rogers-Mayes-Creek-Okfuskee-Okmulgee- Wagoner-Cherokee-Muskogee-McIntosh-Sequoyah-Pittsburg-Haskell- Latimer-Le Flore- Including the cities of Van Buren, Ozark, Charleston, Fort Smith, Antlers, Clayton, Hugo, Pawhuska, Bartlesville, Pawnee, Tulsa, Claremore, Pryor, Sapulpa, Okemah, Okmulgee, Wagoner, Tahlequah, Muskogee, Checotah, Sallisaw, McAlester, Stigler, Wilburton, and Poteau 854 AM CDT Wed Apr 21 2021 ...FREEZE WARNING WILL EXPIRE AT 9 AM CDT THIS MORNING... Temperatures have warmed above freezing for most locations across eastern Oklahoma and northwest Arkansas. Any remaining locations will continue to warm above freezing over the next hour, thus the freeze warning will be allowed to expire. $$ 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
Nearby
Freeze Warnings in Oklahoma, 2021Freeze Warnings in Arkansas, 2021Every freeze 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.