Alert archive / Oklahoma / Flash Flood Watches in 2021
Flash Flood Watch 2, NWS Tulsa, OK
NWS Tulsa, OK issued this flash flood watch at May 27, 2021, 10:46 AM CDT for 17 counties in Oklahoma; 4 counties in Arkansas. It was in force for 11 hr.
The area
The counties it named.
The facts
- Issued
- May 27, 2021, 10:46 AM CDT (15:46 UTC)
- Expired
- May 27, 2021, 10:14 PM CDT
- In force
- 11 hr
- Issued by
- NWS Tulsa, OK
- Flood severity
- None
All 21 counties
Benton County, AR, Carroll County, AR, Madison County, AR, Washington County, AR, Adair County, OK, Cherokee County, OK, Craig County, OK, Creek County, OK, Delaware 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, Rogers County, OK, Tulsa County, OK, Wagoner County, OK, Washington County, OK
The radar
The Tulsa radar (KINX), 28 km from the middle of the area, began a volume at 15:47 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, 3.8 hours before the alert went out and 155 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
- 295 J/kg
- Mixed-layer CIN
- -229 J/kg
- Mixed-layer LCL
- 964 m above ground
- 0-6 km bulk shear
- 42 kt
- 0-1 km storm-relative helicity
- 69 m²/s²
- 0-3 km storm-relative helicity
- 160 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.6
The text
As transmitted.
616 WGUS64 KTSA 271546 FFATSA URGENT - IMMEDIATE BROADCAST REQUESTED Flood Watch National Weather Service Tulsa OK 1046 AM CDT Thu May 27 2021 ARZ001-002-010-011-019-020-OKZ054>072-280600- /O.NEW.KTSA.FF.A.0002.210527T1546Z-210528T0600Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Benton-Carroll-Washington AR-Madison-Crawford-Franklin-Osage- Washington OK-Nowata-Craig-Ottawa-Pawnee-Tulsa-Rogers-Mayes-Delaware- Creek-Okfuskee-Okmulgee-Wagoner-Cherokee-Adair-Muskogee-McIntosh- Sequoyah- Including the cities of Pryor, Checotah, Jay, Springdale, Sallisaw, Vinita, Berryville, Okemah, Tulsa, Bentonville, Huntsville, Van Buren, Miami, Stilwell, Ozark, Bartlesville, Muskogee, Eureka Springs, Rogers, Grove, Wagoner, Okmulgee, Tahlequah, Charleston, Fayetteville, Pawhuska, Sapulpa, Nowata, Claremore, and Pawnee 1046 AM CDT Thu May 27 2021 ...FLASH FLOOD WATCH IN EFFECT THROUGH LATE TONIGHT... The National Weather Service in Tulsa has issued a * Flash Flood Watch for portions of Arkansas and Oklahoma, including the following counties, in Arkansas, Benton, Carroll, Crawford, Franklin, Madison and Washington AR. In Oklahoma, Adair, Cherokee, Craig, Creek, Delaware, Mayes, McIntosh, Muskogee, Nowata, Okfuskee, Okmulgee, Osage, Ottawa, Pawnee, Rogers, Sequoyah, Tulsa, Wagoner and Washington OK. * Through late tonight * Multiple rounds of thunderstorms are expected to track across northeast Oklahoma and northwest Arkansas today and tonight. Storms will be capable of producing heavy rainfall rates, and could train over the same areas, resulting in flash flooding. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flash Flood Watch means rapidly rising water or flooding is possible within the watch area. If you are in the watch area, keep informed, and be ready for quick action if flash flooding is observed or if a warning is issued. && $$ Lacy
3 follow-up statements
684 WGUS64 KTSA 280007 FFATSA Flood Watch National Weather Service Tulsa OK 707 PM CDT Thu May 27 2021 OKZ054>056-059-280115- /O.CAN.KTSA.FF.A.0002.000000T0000Z-210528T0600Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Osage-Washington OK-Nowata-Pawnee- Including the cities of Pawhuska, Pawnee, Nowata, and Bartlesville 707 PM CDT Thu May 27 2021 ...FLASH FLOOD WATCH IS CANCELLED... The Flash Flood Watch for a portion of northeast Oklahoma, including the following counties, Nowata, Osage, Pawnee and Washington OK has been cancelled. The Flood Watch is cancelled. $$ ARZ001-002-010-011-019-020-OKZ057-058-060>072-280600- /O.CON.KTSA.FF.A.0002.000000T0000Z-210528T0600Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Benton-Carroll-Washington AR-Madison-Crawford-Franklin-Craig-Ottawa- Tulsa-Rogers-Mayes-Delaware-Creek-Okfuskee-Okmulgee-Wagoner-Cherokee- Adair-Muskogee-McIntosh-Sequoyah- Including the cities of Pryor, Checotah, Jay, Springdale, Sallisaw, Vinita, Berryville, Okemah, Tulsa, Huntsville, Van Buren, Miami, Stilwell, Ozark, Eureka Springs, Rogers, Grove, Wagoner, Okmulgee, Tahlequah, Charleston, Fayetteville, Muskogee, Sapulpa, Claremore, and Bentonville 707 PM CDT Thu May 27 2021 ...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL 1 AM CDT FRIDAY... The Flash Flood Watch continues for * Portions of Arkansas and Oklahoma, including the following counties, in Arkansas, Benton, Carroll, Crawford, Franklin, Madison and Washington AR. In Oklahoma, Adair, Cherokee, Craig, Creek, Delaware, Mayes, McIntosh, Muskogee, Okfuskee, Okmulgee, Ottawa, Rogers, Sequoyah, Tulsa and Wagoner. * Until 1 AM CDT Friday * Rainfall has ended across portions of northeast Oklahoma as a line of thunderstorms continues to move south. Continue to monitor any road closures or high water in the area. Heavy rain will continue along a line of thunderstorms with training of thunderstorms leading to high rainfall rates and a quick 2-3 inches of rain possible in the watch area PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flash Flood Watch means rapidly rising water or flooding is possible within the watch area. If you are in the watch area, keep informed, and be ready for quick action if flash flooding is observed or if a warning is issued. && $$ MAB
430 WGUS64 KTSA 280055 FFATSA Flood Watch National Weather Service Tulsa OK 755 PM CDT Thu May 27 2021 OKZ057-058-060-061-064-280200- /O.CAN.KTSA.FF.A.0002.000000T0000Z-210528T0600Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Craig-Ottawa-Tulsa-Rogers-Creek- Including the cities of Miami, Claremore, Sapulpa, Tulsa, and Vinita 755 PM CDT Thu May 27 2021 ...FLASH FLOOD WATCH IS CANCELLED... The Flash Flood Watch for a portion of northeast Oklahoma, including the following counties, Craig, Creek, Ottawa, Rogers and Tulsa has been cancelled. The Flood Watch is cancelled. $$ ARZ001-002-010-011-019-020-OKZ062-063-065>072-280600- /O.CON.KTSA.FF.A.0002.000000T0000Z-210528T0600Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Benton-Carroll-Washington AR-Madison-Crawford-Franklin-Mayes- Delaware-Okfuskee-Okmulgee-Wagoner-Cherokee-Adair-Muskogee-McIntosh- Sequoyah- Including the cities of Muskogee, Pryor, Checotah, Eureka Springs, Rogers, Jay, Huntsville, Springdale, Van Buren, Wagoner, Grove, Stilwell, Ozark, Tahlequah, Okmulgee, Charleston, Fayetteville, Sallisaw, Bentonville, Berryville, and Okemah 755 PM CDT Thu May 27 2021 ...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL 1 AM CDT FRIDAY... The Flash Flood Watch continues for * Portions of Arkansas and Oklahoma, including the following counties, in Arkansas, Benton, Carroll, Crawford, Franklin, Madison and Washington AR. In Oklahoma, Adair, Cherokee, Delaware, Mayes, McIntosh, Muskogee, Okfuskee, Okmulgee, Sequoyah and Wagoner. * Until 1 AM CDT Friday * Heavy rainfall has ended across a the portion of the cancelled watch area. Continue to monitor any road closures and be aware of any high water in the area. Heavy rain will continue along a line of thunderstorms moving southeast across the watch area. Rain rate of 2-3 inches per hour could lead to flash flooding through this evening. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flash Flood Watch means rapidly rising water or flooding is possible within the watch area. If you are in the watch area, keep informed, and be ready for quick action if flash flooding is observed or if a warning is issued. && $$ MAB
959 WGUS64 KTSA 280314 FFATSA Flood Watch National Weather Service Tulsa OK 1014 PM CDT Thu May 27 2021 ARZ001-002-010-011-019-020-OKZ062-063-065>072-280415- /O.CAN.KTSA.FF.A.0002.000000T0000Z-210528T0600Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Benton-Carroll-Washington AR-Madison-Crawford-Franklin-Mayes- Delaware-Okfuskee-Okmulgee-Wagoner-Cherokee-Adair-Muskogee-McIntosh- Sequoyah- Including the cities of Muskogee, Pryor, Checotah, Eureka Springs, Rogers, Jay, Huntsville, Springdale, Van Buren, Wagoner, Grove, Stilwell, Ozark, Tahlequah, Okmulgee, Charleston, Fayetteville, Sallisaw, Bentonville, Berryville, and Okemah 1014 PM CDT Thu May 27 2021 ...FLASH FLOOD WATCH IS CANCELLED... The Flash Flood Watch for portions of Arkansas and Oklahoma, including the following counties, in Arkansas, Benton, Carroll, Crawford, Franklin, Madison and Washington AR. In Oklahoma, Adair, Cherokee, Delaware, Mayes, McIntosh, Muskogee, Okfuskee, Okmulgee, Sequoyah and Wagoner has been cancelled. The Flood Watch is cancelled. Flooding is no longer expected to pose a threat. Please continue to heed remaining road closures. $$ RJS
The office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 27, 9:08 AM CDT | River Flood Warning | TSA | Ottawa | 29 hr |
| May 27, 9:58 AM CDT | River Flood Advisory | TSA | Cherokee | 4 days |
| May 27, 11:31 AM CDT | Areal Flood Advisory | TSA | Ottawa | 3 hr |
| May 27, 12:30 PM CDT | Special Weather Statement | TSA | Washington | 45 min |
| May 27, 12:41 PM CDT | Special Weather Statement | TSA | Ottawa | 34 min |
| May 27, 12:46 PM CDT | Severe Thunderstorm Warning | TSA | Craig, Delaware, Ottawa | 44 min |
| May 27, 12:57 PM CDT | Severe Thunderstorm Warning | TSA | Osage | 27 min |
| May 27, 1:12 PM CDT | Special Weather Statement | TSA | Nowata, Washington | 63 min |
| May 27, 1:26 PM CDT | Special Weather Statement | TSA | Osage | 34 min |
| May 27, 1:29 PM CDT | Special Weather Statement | TSA | Ottawa | 46 min |
| May 27, 1:30 PM CDT | Flash Flood Warning | TSA | Ottawa | 6 hr |
| May 27, 1:35 PM CDT | Areal Flood Advisory | TSA | Craig, Nowata | 2 hr |
| May 27, 1:40 PM CDT | Areal Flood Advisory | TSA | Osage, Pawnee | 3 hr |
| May 27, 1:55 PM CDT | Special Weather Statement | TSA | Osage | 65 min |
| May 27, 2:36 PM CDT | Areal Flood Advisory | TSA | Osage, Washington | 92 min |
| May 27, 2:37 PM CDT | Severe Thunderstorm Warning | TSA | Nowata, Osage, Rogers, Washington | 53 min |
| May 27, 2:54 PM CDT | River Flood Warning | TSA | Cherokee | 5 hr |
| May 27, 2:54 PM CDT | River Flood Advisory | TSA | Cherokee, Delaware | 22 hr |
| May 27, 2:54 PM CDT | River Flood Advisory | TSA | Adair, Cherokee, Delaware | 35 hr |
| May 27, 3:08 PM CDT | Severe Thunderstorm Warning | TSA | Rogers, Tulsa, Washington | 52 min |
| May 27, 3:15 PM CDT | Special Weather Statement | TSA | Osage | 45 min |
| May 27, 3:18 PM CDT | Severe Thunderstorm Warning | TSA | Creek | 57 min |
| May 27, 3:23 PM CDT | Severe Thunderstorm Warning | TSA | Osage | 37 min |
| May 27, 3:27 PM CDT | Severe Thunderstorm Warning | TSA | Craig, Mayes, Nowata, Rogers | 63 min |
| May 27, 3:42 PM CDT | Severe Thunderstorm Warning | TSA | Creek, Okfuskee | 48 min |
| May 27, 3:49 PM CDT | Severe Thunderstorm Warning | TSA | Craig, Mayes, Nowata, Osage, Pawnee, Rogers and 2 more | 56 min |
| May 27, 3:51 PM CDT | Flash Flood Warning | TSA | Craig, Nowata | 3 hr |
| May 27, 4:08 PM CDT | Flash Flood Warning | TSA | Osage, Washington | 3 hr |
| May 27, 4:15 PM CDT | Special Weather Statement | TSA | Okmulgee | 30 min |
| May 27, 4:18 PM CDT | Flash Flood Warning | TSA | Osage, Pawnee, Rogers, Tulsa, Washington | 3 hr |
| May 27, 4:26 PM CDT | Special Weather Statement | TSA | Tulsa, Wagoner | 34 min |
| May 27, 4:34 PM CDT | Severe Thunderstorm Warning | TSA | Craig, Delaware, Mayes, Ottawa | 56 min |
| May 27, 4:42 PM CDT | Areal Flood Advisory | TSA | Creek, Okmulgee, Rogers, Tulsa, Wagoner | 3 hr |
| May 27, 4:46 PM CDT | Special Weather Statement | TSA | Delaware, Mayes | 59 min |
| May 27, 4:51 PM CDT | Severe Thunderstorm Warning | TSA | Creek, Okfuskee | 39 min |
| May 27, 4:59 PM CDT | Flash Flood Warning | TSA | Craig, Delaware, Mayes, Rogers | 3 hr |
| May 27, 5:07 PM CDT | Special Weather Statement | TSA | Wagoner | 38 min |
| May 27, 5:26 PM CDT | Special Weather Statement | TSA | Delaware | 34 min |
| May 27, 5:26 PM CDT | Severe Thunderstorm Warning | TSA | Creek, Okfuskee | 64 min |
| May 27, 5:39 PM CDT | Severe Thunderstorm Warning | TSA | Cherokee, Muskogee, Wagoner | 51 min |
| May 27, 5:47 PM CDT | Special Weather Statement | TSA | Okmulgee | 43 min |
| May 27, 6:06 PM CDT | Severe Thunderstorm Warning | TSA | Okfuskee | 39 min |
| May 27, 6:07 PM CDT | Flash Flood Warning | TSA | Creek, Okfuskee, Okmulgee | 3 hr |
| May 27, 6:10 PM CDT | Severe Thunderstorm Warning | TSA | Okfuskee, Okmulgee | 50 min |
| May 27, 6:26 PM CDT | Flash Flood Warning | TSA | Adair, Cherokee, Muskogee, Okmulgee, Wagoner | 2 hr |
| May 27, 6:34 PM CDT | Special Weather Statement | TSA | Cherokee | 41 min |
| May 27, 6:35 PM CDT | Areal Flood Warning | TSA | Craig, Nowata | 12 hr |
| May 27, 6:35 PM CDT | Severe Thunderstorm Warning | TSA | Okfuskee, Okmulgee | 40 min |
| May 27, 6:51 PM CDT | Areal Flood Warning | TSA | Osage, Washington | 12 hr |
| May 27, 6:51 PM CDT | Severe Thunderstorm Warning | TSA | McIntosh, Muskogee, Okmulgee | 39 min |
| May 27, 6:59 PM CDT | Severe Thunderstorm Warning | TSA | McIntosh, Okfuskee, Okmulgee, Pittsburg | 46 min |
| May 27, 4:31 PM CDT | Special Weather Statement | TSA | Benton | 29 min |
| May 27, 4:37 PM CDT | Severe Thunderstorm Warning | TSA | Benton, Washington | 53 min |
| May 27, 4:55 PM CDT | Special Weather Statement | TSA | Madison | 35 min |
| May 27, 5:11 PM CDT | Special Weather Statement | TSA | Madison | 34 min |
| May 27, 5:49 PM CDT | Special Weather Statement | TSA | Benton | 41 min |
| May 27, 6:16 PM CDT | Areal Flood Advisory | TSA | Benton, Carroll, Madison, Washington | 3 hr |
| May 27, 6:29 PM CDT | Severe Thunderstorm Warning | TSA | Benton, Carroll, Madison, Washington | 61 min |
Nearby
Flash Flood Watches in Oklahoma, 2021Flash Flood Watches in Arkansas, 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.