Alert archive / Oklahoma / Flash Flood Warnings in 2017
Flash Flood Warning 21, NWS Tulsa, OK
NWS Tulsa, OK issued this flash flood warning at Apr 30, 2017, 7:46 AM CDT for Mayes County, Oklahoma. It was in force for 5 days. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Apr 30, 2017, 7:46 AM CDT (12:46 UTC)
- Expired
- May 5, 2017, 3:15 PM CDT
- In force
- 5 days
- Issued by
- NWS Tulsa, OK
- Area
- Storm-based polygon
- Flood severity
- None
County Mayes County, OK
The radar
The Tulsa radar (KINX), 34 km from the middle of the area, began a volume at 12:50 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, 0.8 hours before the alert went out and 149 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
- 65 J/kg
- Mixed-layer CIN
- -102 J/kg
- Mixed-layer LCL
- 480 m above ground
- 0-6 km bulk shear
- 50 kt
- 0-1 km storm-relative helicity
- 371 m²/s²
- 0-3 km storm-relative helicity
- 389 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.8
The text
As transmitted.
009
WGUS54 KTSA 301246
FFWTSA
OKC097-010045-
/O.NEW.KTSA.FF.W.0021.170430T1246Z-170501T0045Z/
/00000.0.DR.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Tulsa OK
746 AM CDT SUN APR 30 2017
The National Weather Service in Tulsa has issued a
* Flash Flood Warning for...
A Dam Floodgate Release in...
Southern Mayes County in northeastern Oklahoma...
* Until 745 PM CDT Sunday
* At 738 AM CDT, the GRDA reported the floodgates on the Hudson Dam
are to be opened, and this may cause flash flooding downstream
along the Neosho River.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
LAT...LON 3619 9506 3616 9507 3616 9512 3607 9512
3607 9526 3609 9544 3631 9535
$$
Lacy7 follow-up statements
041
WGUS54 KTSA 010002
FFWTSA
OKC097-020045-
/O.EXT.KTSA.FF.W.0021.000000T0000Z-170502T0045Z/
/00000.0.DR.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Tulsa OK
702 PM CDT SUN APR 30 2017
The National Weather Service in Tulsa has extended the
* Flash Flood Warning for...
A Dam Floodgate Release in...
Southern Mayes County in northeastern Oklahoma...
* Until 745 PM CDT Monday
* At 700 PM CDT, the GRDA reported the floodgates on the Hudson Dam
were open causing flash flooding downstream along the Neosho River.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
LAT...LON 3619 9506 3616 9507 3616 9512 3607 9512
3607 9526 3609 9544 3631 9535
$$014
WGUS74 KTSA 011511
FFSTSA
Flash Flood Statement
National Weather Service Tulsa OK
1011 AM CDT MON MAY 1 2017
OKC097-020045-
/O.CON.KTSA.FF.W.0021.000000T0000Z-170502T0045Z/
/00000.0.DR.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MAYES OK-
1011 AM CDT MON MAY 1 2017
...A FLASH FLOOD WARNING FOR A DAM FLOODGATE RELEASE REMAINS IN
EFFECT UNTIL 745 PM CDT MONDAY FOR SOUTHERN MAYES COUNTY...
According to the GRDA, the floodgates on the Lake Hudson Dam were
opened causing flash flooding downstream on the Grand-Neosho River.
Gate changes can result in rapidly rising water.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Stay away or be swept away. River banks and culverts can become
unstable and unsafe.
&&
LAT...LON 3619 9506 3616 9507 3616 9512 3607 9512
3607 9526 3609 9544 3631 9535
$$211
WGUS54 KTSA 020019
FFWTSA
OKC097-030045-
/O.EXT.KTSA.FF.W.0021.000000T0000Z-170503T0045Z/
/00000.0.DR.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Tulsa OK
719 PM CDT MON MAY 1 2017
The National Weather Service in Tulsa has extended the
* Flash Flood Warning for...
A Dam Floodgate Release in...
Southern Mayes County in northeastern Oklahoma...
* Until 745 PM CDT Tuesday
* At 715 PM CDT, the GRDA reported the floodgates on the Hudson Dam
were open causing flash flooding downstream along the Neosho River.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Stay away or be swept away. River banks and culverts can become
unstable and unsafe.
&&
LAT...LON 3619 9506 3616 9507 3616 9512 3607 9512
3607 9526 3609 9544 3631 9535
$$816
WGUS54 KTSA 030010
FFWTSA
OKC097-040045-
/O.EXT.KTSA.FF.W.0021.000000T0000Z-170504T0045Z/
/00000.0.DR.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Tulsa OK
710 PM CDT TUE MAY 2 2017
The National Weather Service in Tulsa has extended the
* Flash Flood Warning for...
A Dam Floodgate Release in...
Southern Mayes County in northeastern Oklahoma...
* Until 745 PM CDT Wednesday
* At 700 PM CDT, the GRDA continued to release water from the
floodgates on Hudson Dam. Releases remain steady for now.
Additional rainfall overnight through Wednesday may require
additional releases. The releases were causing flash flooding
downstream on the Neosho River and this may worsen should
additional releases be required.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Stay away or be swept away. River banks and culverts can become
unstable and unsafe.
&&
LAT...LON 3619 9506 3616 9507 3616 9512 3607 9512
3607 9526 3609 9544 3631 9535
$$870
WGUS54 KTSA 040004
FFWTSA
OKC097-050045-
/O.EXT.KTSA.FF.W.0021.000000T0000Z-170505T0045Z/
/00000.0.DR.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Tulsa OK
704 PM CDT WED MAY 3 2017
The National Weather Service in Tulsa has extended the
* Flash Flood Warning for...
A Dam Floodgate Release in...
Southern Mayes County in northeastern Oklahoma...
* Until 745 PM CDT Thursday
* At 700 PM CDT, the GRDA continued to release water from the
floodgates on Hudson Dam. Releases remain steady for now and no
additional rainfall is expected overnight. The releases were
causing flash flooding downstream on the Grand-Neosho River and
this may worsen should additional releases be required.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Stay away or be swept away. River banks and culverts can become
unstable and unsafe.
&&
LAT...LON 3619 9506 3616 9507 3616 9512 3607 9512
3607 9526 3609 9544 3631 9535
$$598
WGUS54 KTSA 042340
FFWTSA
OKC097-060045-
/O.EXT.KTSA.FF.W.0021.000000T0000Z-170506T0045Z/
/00000.0.DR.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Tulsa OK
640 PM CDT THU MAY 4 2017
The National Weather Service in Tulsa has extended the
* Flash Flood Warning for...
A Dam Floodgate Release in...
Southern Mayes County in northeastern Oklahoma...
* Until 745 PM CDT Friday
* At 638 PM CDT, the GRDA continued to release water from the
floodgates on Hudson Dam. Releases remain steady and no additional
rainfall is expected. The releases were causing flash flooding
downstream on the Grand-Neosho River.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Stay away or be swept away. River banks and culverts can become
unstable and unsafe.
&&
LAT...LON 3619 9506 3616 9507 3616 9512 3607 9512
3607 9526 3609 9544 3631 9535
$$417
WGUS74 KTSA 052015
FFSTSA
Flash Flood Statement
National Weather Service Tulsa OK
315 PM CDT FRI MAY 5 2017
OKC097-052021-
/O.CAN.KTSA.FF.W.0021.000000T0000Z-170506T0045Z/
/00000.0.DR.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Mayes OK-
315 PM CDT FRI MAY 5 2017
...THE FLASH FLOOD WARNING FOR SOUTHERN MAYES COUNTY IS CANCELLED...
The GRDA has decreased water releases from the floodgates on
Hudson Dam. The water downstream will likely remain in channel
with no additional flooding expected along the Grand-Neosho River.
LAT...LON 3619 9506 3616 9507 3616 9512 3607 9512
3607 9526 3609 9544 3631 9535
$$The office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 29, 7:10 PM CDT | Severe Thunderstorm Warning | TSA | Haskell, Latimer, Muskogee, Pittsburg | 35 min |
| Apr 29, 7:12 PM CDT | Special Weather Statement | TSA | Cherokee | 48 min |
| Apr 29, 7:32 PM CDT | Special Weather Statement | TSA | Haskell, Muskogee | 28 min |
| Apr 29, 7:39 PM CDT | Special Weather Statement | TSA | Nowata | 51 min |
| Apr 29, 7:45 PM CDT | Special Weather Statement | TSA | McIntosh | 30 min |
| Apr 29, 7:54 PM CDT | Special Weather Statement | TSA | Muskogee | 36 min |
| Apr 29, 8:04 PM CDT | Flash Flood Warning | TSA | Creek, Okfuskee, Okmulgee, Osage, Pawnee, Tulsa | 4 hr |
| Apr 29, 8:04 PM CDT | Special Weather Statement | TSA | Okfuskee | 26 min |
| Apr 29, 8:07 PM CDT | Special Weather Statement | TSA | Okmulgee | 23 min |
| Apr 29, 8:20 PM CDT | Special Weather Statement | TSA | Wagoner | 25 min |
| Apr 29, 9:13 PM CDT | Special Weather Statement | TSA | LeFlore | 32 min |
| Apr 29, 9:42 PM CDT | Special Weather Statement | TSA | Choctaw | 18 min |
| Apr 29, 11:09 PM CDT | Areal Flood Warning | TSA | Creek, Okfuskee, Okmulgee, Osage, Pawnee, Tulsa | 36 hr |
| Apr 29, 11:17 PM CDT | Areal Flood Warning | TSA | Haskell, McIntosh, Muskogee, Pittsburg, Sequoyah | 36 hr |
| Apr 29, 11:25 PM CDT | Areal Flood Warning | TSA | Adair, Cherokee, Craig, Delaware, Mayes, Muskogee and 4 more | 36 hr |
| Apr 30, 3:02 AM CDT | River Flood Warning | TSA | Nowata | 53 hr |
| Apr 30, 4:11 AM CDT | Wind Advisory | TSA | Adair, Cherokee, Choctaw, Craig, Creek, Delaware and 16 more | 17 hr |
| Apr 30, 7:35 AM CDT | Flash Flood Warning | TSA | Delaware, Mayes | 4 days |
| Apr 30, 10:40 AM CDT | River Flood Warning | TSA | Cherokee, Delaware | 11 hr |
Nearby
Flash Flood Warnings in Oklahoma, 2017Every flash flood warning in 2017
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.