Alert archive / Oklahoma / Flash Flood Watches in 2021
Flash Flood Watch 9, NWS Tulsa, OK
NWS Tulsa, OK issued this flash flood watch at Oct 10, 2021, 12:12 PM CDT for 13 counties in Oklahoma. It took effect at Oct 10, 2021, 6:00 PM CDT. It was in force for 10 hr.
The area
The counties it named.
The facts
- Issued
- Oct 10, 2021, 12:12 PM CDT (17:12 UTC)
- In effect from
- Oct 10, 2021, 6:00 PM CDT
- Expired
- Oct 11, 2021, 4:00 AM CDT
- In force
- 10 hr
- Issued by
- NWS Tulsa, OK
- Flood severity
- None
Counties Craig County, OK, Creek County, OK, Delaware County, OK, Mayes County, OK, Nowata County, OK, Okfuskee County, OK, Okmulgee County, OK, Ottawa County, OK, Pawnee County, OK, Rogers County, OK, Tulsa County, OK, Wagoner County, OK, Washington County, OK
The radar
The Tulsa radar (KINX), 16 km from the middle of the area, began a volume at 17:13 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, 5.2 hours before the alert went out and 183 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
- 14 J/kg
- Mixed-layer CIN
- -716 J/kg
- Mixed-layer LCL
- 1264 m above ground
- 0-6 km bulk shear
- 42 kt
- 0-1 km storm-relative helicity
- 310 m²/s²
- 0-3 km storm-relative helicity
- 187 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
664 WGUS64 KTSA 101712 FFATSA URGENT - IMMEDIATE BROADCAST REQUESTED Flood Watch National Weather Service Tulsa OK 1212 PM CDT Sun Oct 10 2021 OKZ054>067-110115- /O.NEW.KTSA.FF.A.0009.211010T2300Z-211011T0900Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Osage-Washington OK-Nowata-Craig-Ottawa-Pawnee-Tulsa-Rogers-Mayes- Delaware-Creek-Okfuskee-Okmulgee-Wagoner- Including the cities of Pawhuska, Pryor, Sapulpa, Tulsa, Jay, Miami, Nowata, Wagoner, Vinita, Grove, Bartlesville, Okmulgee, Claremore, Pawnee, and Okemah 1212 PM CDT Sun Oct 10 2021 ...FLASH FLOOD WATCH IN EFFECT FROM 6 PM CDT THIS EVENING THROUGH LATE TONIGHT... The National Weather Service in Tulsa has issued a * Flash Flood Watch for portions of east central Oklahoma and northeast Oklahoma, including the following counties, in east central Oklahoma, Okfuskee. In northeast Oklahoma, Craig, Creek, Delaware, Mayes, Nowata, Okmulgee, Osage, Ottawa, Pawnee, Rogers, Tulsa, Wagoner and Washington OK. * From 6 PM CDT this evening through late tonight. * Strong to severe thunderstorms will spread into northeast Oklahoma this evening with very heavy rainfall likely. Widespread 1 to 2 inch rainfall amounts are expected with locally 4 to 5 inches possible in the stronger storms. A few lingering storms will continue overnight, which could further aggravate any ongoing flooding. PRECAUTIONARY/PREPAREDNESS ACTIONS... You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$ RBD
2 follow-up statements
729 WGUS64 KTSA 110636 FFATSA Flood Watch National Weather Service Tulsa OK 136 AM CDT Mon Oct 11 2021 OKZ054>067-110900- /O.CON.KTSA.FF.A.0009.000000T0000Z-211011T0900Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Osage-Washington OK-Nowata-Craig-Ottawa-Pawnee-Tulsa-Rogers-Mayes- Delaware-Creek-Okfuskee-Okmulgee-Wagoner- Including the cities of Pawhuska, Pryor, Sapulpa, Tulsa, Jay, Miami, Nowata, Wagoner, Vinita, Grove, Bartlesville, Okmulgee, Claremore, Pawnee, and Okemah 136 AM CDT Mon Oct 11 2021 ...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL 4 AM CDT EARLY THIS MORNING... The Flash Flood Watch continues for * Portions of east central Oklahoma and northeast Oklahoma, including the following counties, in east central Oklahoma, Okfuskee. In northeast Oklahoma, Craig, Creek, Delaware, Mayes, Nowata, Okmulgee, Osage, Ottawa, Pawnee, Rogers, Tulsa, Wagoner and Washington OK. * Until 4 AM CDT early this morning. * More areas of showers and embedded thunderstorms are moving into the watch area over the next couple of hours. Localized flash flooding will remain possible. PRECAUTIONARY/PREPAREDNESS ACTIONS... You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$ MAB
169 WGUS64 KTSA 110855 FFATSA Flood Watch National Weather Service Tulsa OK 355 AM CDT Mon Oct 11 2021 OKZ054>067-111000- /O.EXP.KTSA.FF.A.0009.000000T0000Z-211011T0900Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Osage-Washington OK-Nowata-Craig-Ottawa-Pawnee-Tulsa-Rogers-Mayes- Delaware-Creek-Okfuskee-Okmulgee-Wagoner- Including the cities of Pawhuska, Pryor, Sapulpa, Tulsa, Jay, Miami, Nowata, Wagoner, Vinita, Grove, Bartlesville, Okmulgee, Claremore, Pawnee, and Okemah 355 AM CDT Mon Oct 11 2021 ...FLASH FLOOD WATCH WILL EXPIRE AT 4 AM CDT EARLY THIS MORNING... The Flash Flood Watch for portions of east central Oklahoma and northeast Oklahoma, including the following counties, in east central Oklahoma, Okfuskee. In northeast Oklahoma, Craig, Creek, Delaware, Mayes, Nowata, Okmulgee, Osage, Ottawa, Pawnee, Rogers, Tulsa, Wagoner and Washington OK will expire at 4 AM CDT early this morning. The Flood Watch is cancelled. Flooding is no longer expected to pose a threat. Please continue to heed remaining road closures. $$
The office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 10, 6:47 PM CDT | Severe Thunderstorm Warning | TSA | Osage | 58 min |
Nearby
Flash Flood Watches in Oklahoma, 2021Every flash flood watch 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.