Alert archive / Oklahoma / Flood Watches in 2021
Flood Watch 2, NWS Tulsa, OK
NWS Tulsa, OK issued this flood watch at May 17, 2021, 3:20 AM CDT for 4 counties in Oklahoma. It took effect at May 18, 2021, 7:00 AM CDT. It was in force for 38 hr.
The area
The counties it named.
The facts
- Issued
- May 17, 2021, 3:20 AM CDT (08:20 UTC)
- In effect from
- May 18, 2021, 7:00 AM CDT
- Expired
- May 19, 2021, 9:06 PM CDT
- In force
- 38 hr
- Issued by
- NWS Tulsa, OK
- Flood severity
- None
Counties Choctaw County, OK, Latimer County, OK, Pittsburg County, OK, Pushmataha County, OK
The radar
The Western Arkansas radar (KSRX), 130 km from the middle of the area, began a volume at 08:24 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
Fort Worth, TX (KFWD), launched 00:00Z, 8.3 hours before the alert went out and 255 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
- 496 J/kg
- Mixed-layer CIN
- -83 J/kg
- Mixed-layer LCL
- 815 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 58 m²/s²
- 0-3 km storm-relative helicity
- 137 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.8
The text
As transmitted.
473 WGUS64 KTSA 170820 FFATSA URGENT - IMMEDIATE BROADCAST REQUESTED Flood Watch National Weather Service Tulsa OK 320 AM CDT Mon May 17 2021 OKZ049-053-073-075-076-172100- /O.NEW.KTSA.FA.A.0002.210518T1200Z-210520T1200Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Pushmataha-Choctaw-Pittsburg-Latimer-Le Flore- Including the cities of Antlers, McAlester, Poteau, Hugo, Wilburton, and Clayton 320 AM CDT Mon May 17 2021 ...FLOOD WATCH IN EFFECT FROM TUESDAY THROUGH EARLY THURSDAY MORNING... The National Weather Service in Tulsa has issued a * Flood Watch for a portion of southeast Oklahoma, including the following counties, Choctaw, Latimer, Le Flore, Pittsburg and Pushmataha. * From Tuesday morning through Thursday morning * Periodic showers and thunderstorms will spread across southeast Oklahoma today through Thursday. The most likely timeframe for widespread heavy rains currently appears to be Tuesday through Wednesday night. Rainfall totals of 2 to 4 inches are likely with isolated amounts of 6 to 7 inches possible. * Flash flooding and larger mainstem river flooding will be possible. Moderate to major river flooding is possible across portions of southeast Oklahoma. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flood Watch means there is a potential for flooding based on current forecasts. You should monitor later forecasts and be alert for possible flood warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop. && $$
7 follow-up statements
464 WGUS64 KTSA 171956 FFATSA Flood Watch National Weather Service Tulsa OK 256 PM CDT Mon May 17 2021 OKZ049-053-073-075-076-180400- /O.CON.KTSA.FA.A.0002.210518T1200Z-210520T1200Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Pushmataha-Choctaw-Pittsburg-Latimer-Le Flore- Including the cities of Antlers, McAlester, Poteau, Hugo, Wilburton, and Clayton 256 PM CDT Mon May 17 2021 ...FLOOD WATCH REMAINS IN EFFECT FROM TUESDAY MORNING THROUGH THURSDAY MORNING... The Flood Watch continues for * A portion of southeast Oklahoma, including the following counties, Choctaw, Latimer, Le Flore, Pittsburg and Pushmataha. * From Tuesday morning through Thursday morning * Periodic showers and thunderstorms will spread across southeast Oklahoma tonight through Thursday. The most likely time frame for widespread heavy rains currently appears to be Tuesday through Wednesday night. Rainfall totals of 2 to 4 inches are likely with isolated amounts of 6 to 7 inches possible. * Flash flooding and larger main-stem river flooding will be possible. Moderate to major river flooding is possible across parts of southeast Oklahoma. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flood Watch means there is a potential for flooding based on current forecasts. You should monitor later forecasts and be alert for possible flood warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop. && $$
626 WGUS64 KTSA 180151 FFATSA Flood Watch National Weather Service Tulsa OK 851 PM CDT Mon May 17 2021 OKZ049-053-073-075-076-181000- /O.CON.KTSA.FA.A.0002.210518T1200Z-210520T1200Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Pushmataha-Choctaw-Pittsburg-Latimer-Le Flore- Including the cities of Antlers, McAlester, Poteau, Hugo, Wilburton, and Clayton 851 PM CDT Mon May 17 2021 ...FLOOD WATCH REMAINS IN EFFECT FROM 7 AM CDT TUESDAY THROUGH THURSDAY MORNING... The Flood Watch continues for * A portion of southeast Oklahoma, including the following counties, Choctaw, Latimer, Le Flore, Pittsburg and Pushmataha. * From 7 AM CDT Tuesday through Thursday morning * Periodic showers and thunderstorms will spread across southeast Oklahoma tonight through Thursday. The most likely time frame for widespread heavy rains currently appears to be Tuesday through Wednesday night. Rainfall totals of 2 to 4 inches are likely with isolated amounts of 6 to 7 inches possible. * Flash flooding and larger main-stem river flooding will be possible. Moderate to major river flooding is possible across parts of southeast Oklahoma. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flood Watch means there is a potential for flooding based on current forecasts. You should monitor later forecasts and be alert for possible flood warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop. && $$ Snider
841 WGUS64 KTSA 180832 FFATSA Flood Watch National Weather Service Tulsa OK 332 AM CDT Tue May 18 2021 OKZ049-053-073-075-076-181800- /O.CON.KTSA.FA.A.0002.210518T1200Z-210520T1200Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Pushmataha-Choctaw-Pittsburg-Latimer-Le Flore- Including the cities of Antlers, McAlester, Poteau, Hugo, Wilburton, and Clayton 332 AM CDT Tue May 18 2021 ...FLOOD WATCH REMAINS IN EFFECT FROM 7 AM CDT THIS MORNING THROUGH THURSDAY MORNING... The Flood Watch continues for * A portion of southeast Oklahoma, including the following counties, Choctaw, Latimer, Le Flore, Pittsburg and Pushmataha. * From 7 AM CDT this morning through Thursday morning * Periodic showers and thunderstorms will spread across southeast Oklahoma today through Thursday. The most likely time frame for widespread heavy rains currently appears to be through Wednesday night. Rainfall totals of 2 to 4 inches are likely with isolated amounts of 5 to 7 inches possible. * Flash flooding and larger main-stem river flooding will be possible. Moderate to major river flooding is possible across parts of southeast Oklahoma. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flood Watch means there is a potential for flooding based on current forecasts. You should monitor later forecasts and be alert for possible flood warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop. && $$
047 WGUS64 KTSA 181926 FFATSA Flood Watch National Weather Service Tulsa OK 226 PM CDT Tue May 18 2021 OKZ049-053-073-075-076-191100- /O.CON.KTSA.FA.A.0002.000000T0000Z-210520T1200Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Pushmataha-Choctaw-Pittsburg-Latimer-Le Flore- Including the cities of Antlers, Clayton, Hugo, McAlester, Wilburton, and Poteau 226 PM CDT Tue May 18 2021 ...FLOOD WATCH REMAINS IN EFFECT THROUGH THURSDAY MORNING... The Flood Watch continues for * A portion of southeast Oklahoma...including the following counties...Choctaw...Latimer...Le Flore...Pittsburg and Pushmataha. * Through Thursday morning * Periodic showers and thunderstorms will spread across southeast Oklahoma today through Thursday. The most likely time frame for widespread heavy rains currently appears to be this afternoon and again Wednesday night. Rainfall totals of 1 to 2 inches are likely with isolated amounts of 4 to 5 inches possible. * Flash flooding and larger main-stem river flooding will be possible. Moderate to major river flooding is possible across parts of southeast Oklahoma. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flood Watch means there is a potential for flooding based on current forecasts. You should monitor later forecasts and be alert for possible flood warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop. && $$
958 WGUS64 KTSA 190826 FFATSA Flood Watch National Weather Service Tulsa OK 326 AM CDT Wed May 19 2021 OKZ049-053-073-075-076-191800- /O.CON.KTSA.FA.A.0002.000000T0000Z-210520T1200Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Pushmataha-Choctaw-Pittsburg-Latimer-Le Flore- Including the cities of Antlers, McAlester, Poteau, Hugo, Wilburton, and Clayton 326 AM CDT Wed May 19 2021 ...FLOOD WATCH REMAINS IN EFFECT THROUGH THURSDAY MORNING... The Flood Watch continues for * A portion of southeast Oklahoma, including the following counties, Choctaw, Latimer, Le Flore, Pittsburg and Pushmataha. * Through Thursday morning * Periodic showers and thunderstorms will continue to spread across southeast Oklahoma through tonight. Additional rainfall totals of up toward 1 inch and locally higher will be possible on top what has already fallen. * This additional forecast rainfall will continue to increase flash flooding as well as larger main-stem river flooding concerns. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flood Watch means there is a potential for flooding based on current forecasts. You should monitor later forecasts and be alert for possible flood warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop. && $$
818 WGUS64 KTSA 191932 FFATSA Flood Watch National Weather Service Tulsa OK 232 PM CDT Wed May 19 2021 OKZ049-053-073-075-076-201200- /O.CON.KTSA.FA.A.0002.000000T0000Z-210520T1200Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Pushmataha-Choctaw-Pittsburg-Latimer-Le Flore- Including the cities of Antlers, McAlester, Poteau, Hugo, Wilburton, and Clayton 232 PM CDT Wed May 19 2021 ...FLOOD WATCH REMAINS IN EFFECT THROUGH THURSDAY MORNING... The Flood Watch continues for * A portion of southeast Oklahoma, including the following counties, Choctaw, Latimer, Le Flore, Pittsburg and Pushmataha. * Through Thursday morning * Periodic showers and thunderstorms will continue to spread across southeast Oklahoma this afternoon. An additional round of showers with a few embedded thunderstorms will be possible late tonight. Additional rainfall totals around an inch with locally higher amounts will be possible on top of what has already fallen. * This additional forecast rainfall could produce localized flash flooding concerns. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flood Watch means there is a potential for flooding based on current forecasts. You should monitor later forecasts and be alert for possible flood warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop. && $$ RBD
899 WGUS64 KTSA 200206 FFATSA Flood Watch National Weather Service Tulsa OK 906 PM CDT Wed May 19 2021 OKZ049-053-073-075-076-200315- /O.CAN.KTSA.FA.A.0002.000000T0000Z-210520T1200Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Pushmataha-Choctaw-Pittsburg-Latimer-Le Flore- Including the cities of Antlers, McAlester, Poteau, Hugo, Wilburton, and Clayton 906 PM CDT Wed May 19 2021 ...FLOOD WATCH IS CANCELLED... The Flood Watch for a portion of southeast Oklahoma, including the following counties, Choctaw, Latimer, Le Flore, Pittsburg and Pushmataha has been cancelled. The Flood Watch is cancelled. The threat for widespread heavy rainfall has passed. More showers are expected late tonight and Thursday morning, though it is not expected they will pose a significant flooding threat. Please continue to heed any remaining road closures. $$ MAB
The office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 16, 11:41 PM CDT | Areal Flood Advisory | TSA | Osage | 4 hr |
| May 17, 5:48 AM CDT | River Flood Warning | TSA | Osage | 7 hr |
| May 17, 3:45 PM CDT | Special Weather Statement | TSA | Cherokee | 15 min |
| May 17, 5:48 PM CDT | Special Weather Statement | TSA | Sequoyah | 27 min |
| May 17, 6:30 PM CDT | Special Weather Statement | TSA | Delaware | 30 min |
Nearby
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.