Alert archive / Oklahoma / Flash Flood Warnings in 2021
Flash Flood Warning 39, NWS Tulsa, OK
NWS Tulsa, OK issued this flash flood warning at Jun 27, 2021, 4:50 AM CDT for 4 counties in Oklahoma. It was in force for 4 hr. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Jun 27, 2021, 4:50 AM CDT (09:50 UTC)
- Expired
- Jun 27, 2021, 8:37 AM CDT
- In force
- 4 hr
- Issued by
- NWS Tulsa, OK
- Area
- Storm-based polygon
- Flood severity
- None
Counties Creek County, OK, Osage County, OK, Pawnee County, OK, Tulsa County, OK
The radar
The Tulsa radar (KINX), 54 km from the middle of the area, began a volume at 09:53 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 00:00Z, 9.8 hours before the alert went out and 230 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
- 342 J/kg
- Mixed-layer CIN
- -25 J/kg
- Mixed-layer LCL
- 997 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- 86 m²/s²
- 0-3 km storm-relative helicity
- 105 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 1.3
The text
As transmitted.
869
WGUS54 KTSA 270950
FFWTSA
OKC037-113-117-143-271345-
/O.NEW.KTSA.FF.W.0039.210627T0950Z-210627T1345Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Tulsa OK
450 AM CDT Sun Jun 27 2021
The National Weather Service in Tulsa has issued a
* Flash Flood Warning for...
Creek County in northeastern Oklahoma...
Southeastern Osage County in northeastern Oklahoma...
Southeastern Pawnee County in northeastern Oklahoma...
Tulsa County in northeastern Oklahoma...
* Until 845 AM CDT.
* At 450 AM CDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 2 and 4 inches of rain
have fallen. Additional rainfall amounts of 1 to 3 inches are
possible in the warned area. Flash flooding is ongoing or expected
to begin shortly.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Radar.
IMPACT...Flash flooding of small creeks and streams, urban
areas, highways, streets and underpasses as well as
other poor drainage and low-lying areas.
* Some locations that will experience flash flooding include...
Tulsa... Broken Arrow...
Sand Springs... Bristow...
Owasso... Bixby...
Sapulpa... Jenks...
Glenpool... Catoosa...
Mannford... Drumright...
Kiefer... Sperry...
Mounds... Kellyville...
Oilton... Depew...
Westport... Slick...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Be aware of your surroundings and do not drive on flooded roads.
&&
LAT...LON 3616 9663 3628 9600 3628 9582 3616 9581
3616 9576 3590 9576 3586 9602 3586 9619
3574 9619 3570 9662
FLASH FLOOD...RADAR INDICATED
$$1 follow-up statement
140
WGUS74 KTSA 271337
FFSTSA
Flash Flood Statement
National Weather Service Tulsa OK
837 AM CDT Sun Jun 27 2021
OKC037-113-117-143-271347-
/O.CAN.KTSA.FF.W.0039.000000T0000Z-210627T1345Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Creek OK-Osage OK-Pawnee OK-Tulsa OK-
837 AM CDT Sun Jun 27 2021
...FLASH FLOOD WARNING FOR CREEK, SOUTHEASTERN OSAGE, SOUTHEASTERN
PAWNEE AND TULSA COUNTIES HAS BEEN REPLACED WITH A FLOOD WARNING...
The heavy rainfall has moved out of the area, though areas of
flooding may still be ongoing from widespread 2 to 4 inches of
rainfall that has already fallen.
LAT...LON 3616 9663 3628 9600 3628 9582 3616 9581
3616 9576 3590 9576 3586 9602 3586 9619
3574 9619 3570 9662
$$The office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 26, 9:00 PM CDT | Areal Flood Advisory | TSA | Nowata, Osage, Pawnee, Washington | 4 hr |
| Jun 26, 10:12 PM CDT | Areal Flood Advisory | TSA | Craig, Creek, Delaware, Mayes, Nowata, Osage and 5 more | 3 hr |
| Jun 26, 11:33 PM CDT | Flash Flood Warning | TSA | Craig, Delaware, Nowata, Ottawa, Rogers | 10 hr |
| Jun 27, 12:45 AM CDT | Areal Flood Advisory | TSA | Creek, Delaware, Mayes, Muskogee, Okfuskee, Okmulgee and 6 more | 5 hr |
| Jun 27, 6:21 AM CDT | Flash Flood Warning | TSA | Okmulgee | 3 hr |
| Jun 27, 8:37 AM CDT | Areal Flood Warning | TSA | Creek, Osage, Pawnee, Tulsa | 3 hr |
| Jun 27, 9:09 AM CDT | River Flood Warning | TSA | Creek | 18 hr |
| Jun 27, 10:26 AM CDT | River Flood Warning | TSA | Tulsa | 7 hr |
| Jun 27, 3:52 PM CDT | Special Weather Statement | TSA | Wagoner | 38 min |
| Jun 27, 4:25 PM CDT | Special Weather Statement | TSA | McIntosh | 35 min |
| Jun 27, 4:33 PM CDT | Special Weather Statement | TSA | Wagoner | 42 min |
| Jun 27, 5:00 PM CDT | Special Weather Statement | TSA | McIntosh | 60 min |
Nearby
Flash Flood Warnings in Oklahoma, 2021Every flash flood 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.