Alert archive / Oklahoma / Frost Advisories in 2021
Frost Advisory 2, NWS Tulsa, OK
NWS Tulsa, OK issued this frost advisory at Oct 29, 2021, 2:12 PM CDT for 14 counties in Oklahoma. It took effect at Oct 30, 2021, 2:00 AM CDT. It was in force for 7 hr.
The area
The counties it named.
The facts
- Issued
- Oct 29, 2021, 2:12 PM CDT (19:12 UTC)
- In effect from
- Oct 30, 2021, 2:00 AM CDT
- Expired
- Oct 30, 2021, 8:58 AM CDT
- In force
- 7 hr
- Issued by
- NWS Tulsa, OK
Counties Craig County, OK, Creek County, OK, Mayes County, OK, McIntosh County, OK, Muskogee County, OK, Nowata County, OK, Okfuskee County, OK, Okmulgee County, OK, Pawnee County, OK, Pittsburg County, OK, Rogers County, OK, Tulsa County, OK, Wagoner County, OK, Washington County, OK
The radar
The Tulsa radar (KINX), 27 km from the middle of the area, began a volume at 19:16 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, 7.2 hours before the alert went out and 204 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
- 1 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 450 m above ground
- 0-6 km bulk shear
- 65 kt
- 0-1 km storm-relative helicity
- 181 m²/s²
- 0-3 km storm-relative helicity
- 156 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
207 WWUS74 KTSA 291912 NPWTSA URGENT - WEATHER MESSAGE National Weather Service Tulsa OK 212 PM CDT Fri Oct 29 2021 OKZ054>057-059>062-064>067-070-071-073-300315- /O.NEW.KTSA.FR.Y.0002.211030T0700Z-211030T1400Z/ Osage-Washington OK-Nowata-Craig-Pawnee-Tulsa-Rogers-Mayes-Creek- Okfuskee-Okmulgee-Wagoner-Muskogee-McIntosh-Pittsburg- Including the cities of Pawhuska, Bartlesville, Nowata, Vinita, Pawnee, Tulsa, Claremore, Pryor, Sapulpa, Okemah, Okmulgee, Wagoner, Muskogee, Checotah, and McAlester 212 PM CDT Fri Oct 29 2021 ...FROST ADVISORY IN EFFECT FROM 2 AM TO 9 AM CDT SATURDAY... * WHAT...Temperatures as low as 34 will result in frost formation. * WHERE...Portions of east central, northeast and southeast Oklahoma. * WHEN...From 2 AM to 9 AM CDT Saturday. * IMPACTS...Sensitive outdoor plants may be killed if left unprotected from the cold. PRECAUTIONARY/PREPAREDNESS ACTIONS... Cover outdoor plants or bring them indoors. && $$ Stay tuned to NOAA weather radio,commercial radio or television for the latest information,forecasts,and warnings. For more information from the National Weather Service visit https://weather.gov/tsa
2 follow-up statements
190 WWUS74 KTSA 300310 NPWTSA URGENT - WEATHER MESSAGE National Weather Service Tulsa OK 1010 PM CDT Fri Oct 29 2021 OKZ054>057-059>062-064>067-070-071-073-301400- /O.CON.KTSA.FR.Y.0002.211030T0700Z-211030T1400Z/ Osage-Washington OK-Nowata-Craig-Pawnee-Tulsa-Rogers-Mayes-Creek- Okfuskee-Okmulgee-Wagoner-Muskogee-McIntosh-Pittsburg- Including the cities of Pawhuska, Bartlesville, Nowata, Vinita, Pawnee, Tulsa, Claremore, Pryor, Sapulpa, Okemah, Okmulgee, Wagoner, Muskogee, Checotah, and McAlester 1010 PM CDT Fri Oct 29 2021 ...FROST ADVISORY REMAINS IN EFFECT FROM 2 AM TO 9 AM CDT SATURDAY... * WHAT...Temperatures as low as 34 will result in frost formation. * WHERE...Portions of east central, northeast and southeast Oklahoma. * WHEN...From 2 AM to 9 AM CDT Saturday. * IMPACTS...Sensitive outdoor plants may be killed if left unprotected from the cold. PRECAUTIONARY/PREPAREDNESS ACTIONS... Cover outdoor plants or bring them indoors. && $$ 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
791 WWUS74 KTSA 301358 NPWTSA URGENT - WEATHER MESSAGE National Weather Service Tulsa OK 858 AM CDT Sat Oct 30 2021 OKZ054>057-059>062-064>067-070-071-073-301500- /O.CAN.KTSA.FR.Y.0002.000000T0000Z-211030T1400Z/ Osage-Washington OK-Nowata-Craig-Pawnee-Tulsa-Rogers-Mayes-Creek- Okfuskee-Okmulgee-Wagoner-Muskogee-McIntosh-Pittsburg- Including the cities of Pawhuska, Bartlesville, Nowata, Vinita, Pawnee, Tulsa, Claremore, Pryor, Sapulpa, Okemah, Okmulgee, Wagoner, Muskogee, Checotah, and McAlester 858 AM CDT Sat Oct 30 2021 ...FROST ADVISORY WILL EXPIRE AT 9 AM CDT 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
Nearby
Frost Advisories in Oklahoma, 2021Every frost 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.