Alert archive / Oklahoma / Flash Flood Warnings in 2018
Flash Flood Warning 10, NWS Tulsa, OK
NWS Tulsa, OK issued this flash flood warning at Sep 21, 2018, 1:48 PM CDT for 5 counties in Oklahoma. It was in force for 6 hr. 4 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Sep 21, 2018, 1:48 PM CDT (18:48 UTC)
- Expired
- Sep 21, 2018, 7:45 PM CDT
- In force
- 6 hr
- Issued by
- NWS Tulsa, OK
- Area
- Storm-based polygon
- Flood severity
- None
Counties Creek County, OK, Muskogee County, OK, Okmulgee County, OK, Tulsa County, OK, Wagoner County, OK
The radar
The Tulsa radar (KINX), 34 km from the middle of the area, began a volume at 18:48 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Sep 21, 2:45 PM CDT | FLASH FLOOD | 4 Sw Broken Arrow, OK | SEVERAL INCHES OF WATER OVER THE ROAD. VEHICLES ONLY ABLE TO USE CENTER OF ROAD TO PASS. |
| Sep 21, 2:52 PM CDT | FLASH FLOOD | Bixby, OK | 131ST NEAR MEMORIAL IS NEARLY IMPASSABLE DUE TO FLOODING. |
| Sep 21, 2:52 PM CDT | FLASH FLOOD | Tulsa, OK | YALE AVENUE IS CLOSED BETWEEN 51ST AND 61ST DUE TO FLOODING. |
| Sep 21, 4:17 PM CDT | FLASH FLOOD | 4 Sw Broken Arrow, OK | CITY OF BROKEN ARROW CLOSED THE INTERSECTION OF 101ST AND GARNETT DUE TO HIGH WATER. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Norman, OK (KOUN), launched 12:00Z, 6.8 hours before the alert went out and 163 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
- 301 J/kg
- Mixed-layer CIN
- -40 J/kg
- Mixed-layer LCL
- 640 m above ground
- 0-6 km bulk shear
- 18 kt
- 0-1 km storm-relative helicity
- 64 m²/s²
- 0-3 km storm-relative helicity
- 48 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
383
WGUS54 KTSA 211848
FFWTSA
OKC037-101-111-143-145-220045-
/O.NEW.KTSA.FF.W.0010.180921T1848Z-180922T0045Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Tulsa OK
148 PM CDT FRI SEP 21 2018
The National Weather Service in Tulsa has issued a
* Flash Flood Warning for...
Eastern Creek County in northeastern Oklahoma...
Western Wagoner County in northeastern Oklahoma...
Northwestern Muskogee County in east central Oklahoma...
Northern Okmulgee County in northeastern Oklahoma...
Tulsa County in northeastern Oklahoma...
* Until 745 PM CDT Friday.
* At 144 PM CDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Reports of 2 to 3 inches of
rain with radar estimates of locally 3 to 4 inches have fallen
over the past couple hours. Flash flooding is expected to begin
shortly.
* Some locations that may experience flooding include...
Tulsa... Broken Arrow...
Muskogee... Sand Springs...
Bixby... Sapulpa...
Jenks... Glenpool...
Coweta... Catoosa...
Haskell... Kiefer...
Beggs... Mounds...
Kellyville... Porter...
Taft... Jenks Riverside Airport...
Stonebluff... Bald Hill...
Additional rainfall amounts of 1 to 2 inches with locally higher
amounts are possible in the warned area.
This includes Interstate 44 between mile markers 198 and 231.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Excessive runoff from heavy rainfall will cause flooding of small
creeks and streams, urban areas, highways, streets and underpasses as
well as other drainage areas and low lying spots.
Please report flooding to your local law enforcement agency when you
can do so safely.
&&
LAT...LON 3616 9563 3574 9541 3573 9620 3607 9640
3616 9601
$$1 follow-up statement
575
WGUS74 KTSA 212038
FFSTSA
Flash Flood Statement
National Weather Service Tulsa OK
338 PM CDT FRI SEP 21 2018
OKC037-101-111-143-145-220045-
/O.CON.KTSA.FF.W.0010.000000T0000Z-180922T0045Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Creek OK-Wagoner OK-Muskogee OK-Okmulgee OK-Tulsa OK-
338 PM CDT FRI SEP 21 2018
...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 745 PM CDT FOR
EASTERN CREEK...WESTERN WAGONER...NORTHWESTERN MUSKOGEE...NORTHERN
OKMULGEE AND TULSA COUNTIES...
At 332 PM CDT, Doppler radar indicated heavy rain continues across
the warned area. 1 to 3 inches of rain have fallen. Flash flooding
has been reported in parts of the Tulsa metropolitan area.
Some locations that may experience flooding include...
Tulsa... Broken Arrow...
Muskogee... Sand Springs...
Bixby... Sapulpa...
Jenks... Glenpool...
Coweta... Catoosa...
Haskell... Kiefer...
Beggs... Mounds...
Kellyville... Porter...
Taft... Jenks Riverside Airport...
Stonebluff... Bald Hill...
Additional rainfall amounts of 1 to 2 inches are possible in the
warned area.
Flooding is occurring along Little Haikey Creek at 101st Street
South in Tulsa, and at 131st and Memorial in Bixby.
This includes Interstate 44 between mile markers 198 and 231.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Excessive runoff from heavy rainfall will cause flooding of small
creeks and streams, urban areas, highways, streets and underpasses as
well as other drainage areas and low lying spots.
Please report flooding to your local law enforcement agency when you
can do so safely.
&&
LAT...LON 3616 9563 3574 9541 3573 9620 3607 9640
3616 9601
$$The office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 21, 10:21 AM CDT | Areal Flood Advisory | TSA | Latimer, LeFlore, Pushmataha | 3 hr |
| Sep 21, 12:47 PM CDT | Areal Flood Advisory | TSA | Creek, Okmulgee, Tulsa, Wagoner | 3 hr |
| Sep 21, 12:57 PM CDT | Areal Flood Advisory | TSA | Latimer, LeFlore, Pushmataha | 3 hr |
| Sep 21, 2:08 PM CDT | River Flood Warning | TSA | LeFlore | 36 hr |
| Sep 21, 2:08 PM CDT | River Flood Warning | TSA | LeFlore | 36 hr |
| Sep 21, 2:13 PM CDT | River Flood Advisory | TSA | Pushmataha | 42 hr |
| Sep 21, 4:10 PM CDT | Areal Flood Advisory | TSA | Latimer, LeFlore, Pushmataha | 3 hr |
| Sep 21, 4:33 PM CDT | Areal Flood Advisory | TSA | McIntosh, Pittsburg | 3 hr |
| Sep 21, 4:38 PM CDT | Areal Flood Advisory | TSA | Wagoner | 3 hr |
| Sep 21, 5:52 PM CDT | Flash Flood Warning | TSA | Wagoner | 113 min |
Nearby
Flash Flood Warnings in Oklahoma, 2018Every flash flood warning in 2018
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.