Alert archive / Oklahoma / Freeze Warnings in 2021
Freeze Warning 2, NWS Tulsa, OK
NWS Tulsa, OK issued this freeze warning at Apr 1, 2021, 1:38 PM CDT for 14 counties in Oklahoma; 4 counties in Arkansas. It took effect at Apr 2, 2021, 2:00 AM 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
- Apr 1, 2021, 1:38 PM CDT (18:38 UTC)
- In effect from
- Apr 2, 2021, 2:00 AM CDT
- Expired
- Apr 2, 2021, 9:00 AM CDT
- In force
- 7 hr
- Issued by
- NWS Tulsa, OK
Counties Benton County, AR, Carroll County, AR, Madison County, AR, Washington County, AR, Adair County, OK, Cherokee County, OK, Craig County, OK, Delaware County, OK, Haskell County, OK, Latimer County, OK, Mayes County, OK, Muskogee County, OK, Nowata County, OK, Ottawa County, OK, Pushmataha County, OK, Rogers County, OK, Wagoner County, OK, Washington County, OK
The radar
The Tulsa radar (KINX), 57 km from the middle of the area, began a volume at 18:36 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, 6.6 hours before the alert went out and 141 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
- 2093 m above ground
- 0-6 km bulk shear
- 72 kt
- 0-1 km storm-relative helicity
- 42 m²/s²
- 0-3 km storm-relative helicity
- 95 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
676 WWUS74 KTSA 011838 NPWTSA URGENT - WEATHER MESSAGE National Weather Service Tulsa OK 138 PM CDT Thu Apr 1 2021 ARZ001-002-010-011-019-020-029-020245- /O.UPG.KTSA.FZ.A.0002.210402T0700Z-210402T1400Z/ /O.NEW.KTSA.FZ.W.0002.210402T0700Z-210402T1400Z/ 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 138 PM CDT Thu Apr 1 2021 ...FREEZE WARNING IN EFFECT FROM 2 AM TO 9 AM CDT FRIDAY... * WHAT...Sub-freezing temperatures as low as 28 expected. * WHERE...Benton, Carroll, Washington AR, Madison, Crawford, Franklin and Sebastian Counties. * WHEN...From 2 AM to 9 AM CDT Friday. * 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. && $$ OKZ049-054>058-061>063-067>070-072-074>076-020245- /O.CON.KTSA.FZ.A.0002.210402T0700Z-210402T1400Z/ Pushmataha-Osage-Washington OK-Nowata-Craig-Ottawa-Rogers-Mayes- Delaware-Wagoner-Cherokee-Adair-Muskogee-Sequoyah-Haskell-Latimer- Le Flore- Including the cities of Antlers, Clayton, Pawhuska, Bartlesville, Nowata, Vinita, Miami, Claremore, Pryor, Grove, Jay, Wagoner, Tahlequah, Stilwell, Muskogee, Sallisaw, Stigler, Wilburton, and Poteau 138 PM CDT Thu Apr 1 2021 ...FREEZE WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH FRIDAY MORNING... * WHAT...Sub-freezing temperatures as low as 30 remains possible from late tonight into early tomorrow morning. * WHERE...Portions of east central and northeast Oklahoma. * WHEN...From 2 AM to 9 AM CDT Friday. * IMPACTS...These conditions will kill plants and other tender vegetation that are left outdoors or unprotected. PRECAUTIONARY/PREPAREDNESS ACTIONS... Outdoor water pipes should be wrapped, drained, or allowed to run in a slow steady stream. Precautions should also be taken to protect small plants and tender vegetation. && $$ 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
2 follow-up statements
437 WWUS74 KTSA 020156 NPWTSA URGENT - WEATHER MESSAGE National Weather Service Tulsa OK 856 PM CDT Thu Apr 1 2021 OKZ049-054>058-061>063-067>070-072-074>076-021400- /O.UPG.KTSA.FZ.A.0002.210402T0700Z-210402T1400Z/ /O.EXA.KTSA.FZ.W.0002.210402T0700Z-210402T1400Z/ Pushmataha-Osage-Washington OK-Nowata-Craig-Ottawa-Rogers-Mayes- Delaware-Wagoner-Cherokee-Adair-Muskogee-Sequoyah-Haskell-Latimer- Le Flore- Including the cities of Antlers, Clayton, Pawhuska, Bartlesville, Nowata, Vinita, Miami, Claremore, Pryor, Grove, Jay, Wagoner, Tahlequah, Stilwell, Muskogee, Sallisaw, Stigler, Wilburton, and Poteau 856 PM CDT Thu Apr 1 2021 ...FREEZE WARNING IN EFFECT FROM 2 AM TO 9 AM CDT FRIDAY... * WHAT...Sub-freezing temperatures as low as 28 expected. * WHERE...Parts of east central, northeast and southeast Oklahoma. * WHEN...From 2 AM to 9 AM Friday. * 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. && $$ ARZ001-002-010-011-019-020-029-021400- /O.CON.KTSA.FZ.W.0002.210402T0700Z-210402T1400Z/ Benton-Carroll-Washington AR-Madison-Crawford-Franklin-Sebastian- Including the cities of Rogers, Bentonville, Berryville, Eureka Springs, Fayetteville, Springdale, Huntsville, Van Buren, Ozark, Charleston, and Fort Smith 856 PM CDT Thu Apr 1 2021 ...FREEZE WARNING REMAINS IN EFFECT FROM 2 AM TO 9 AM CDT FRIDAY... * WHAT...Sub-freezing temperatures as low as 26 expected. * WHERE...Benton, Carroll, Washington AR, Madison, Crawford, Franklin and Sebastian Counties. * WHEN...From 2 AM to 9 AM Friday. * IMPACTS...These conditions will kill plants and other tender vegetation that are left outdoors or unprotected. PRECAUTIONARY/PREPAREDNESS ACTIONS... Precautions should be taken to protect small plants and tender vegetation. && $$ 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
883 WWUS74 KTSA 021402 NPWTSA URGENT - WEATHER MESSAGE National Weather Service Tulsa OK 902 AM CDT Fri Apr 2 2021 ARZ001-002-010-011-019-020-029-OKZ049-054>058-061>063-067>070-072- 074>076-021515- /O.EXP.KTSA.FZ.W.0002.000000T0000Z-210402T1400Z/ Benton-Carroll-Washington AR-Madison-Crawford-Franklin-Sebastian- Pushmataha-Osage-Washington OK-Nowata-Craig-Ottawa-Rogers-Mayes- Delaware-Wagoner-Cherokee-Adair-Muskogee-Sequoyah-Haskell-Latimer- Le Flore- Including the cities of Rogers, Bentonville, Berryville, Eureka Springs, Fayetteville, Springdale, Huntsville, Van Buren, Ozark, Charleston, Fort Smith, Antlers, Clayton, Pawhuska, Bartlesville, Nowata, Vinita, Miami, Claremore, Pryor, Grove, Jay, Wagoner, Tahlequah, Stilwell, Muskogee, Sallisaw, Stigler, Wilburton, and Poteau 902 AM CDT Fri Apr 2 2021 ...FREEZE WARNING HAS EXPIRED... All locations have warmed above freezing this morning. $$ 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.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 1, 3:02 AM CDT | Freeze Watch | TSA | Adair, Cherokee, Craig, Delaware, Haskell, Latimer and 8 more | 18 hr |
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.