Alert archive / Oklahoma / Flash Flood Warnings in 2017

Flash Flood Warning 39, NWS Tulsa, OK

July 5, 2017Choctaw County, Pushmataha County, Oklahoma

NWS Tulsa, OK issued this flash flood warning at Jul 5, 2017, 3:16 AM CDT for Choctaw County, Pushmataha County, Oklahoma. It was in force for 6 hr. 2 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
Jul 5, 2017, 3:16 AM CDT (08:16 UTC)
Expired
Jul 5, 2017, 9:15 AM CDT
In force
6 hr
Issued by
NWS Tulsa, OK
Area
Storm-based polygon
Flood severity
None

Counties Choctaw County, OK, Pushmataha County, OK

The radar

The Western Arkansas radar (KSRX), 173 km from the middle of the area, began a volume at 08:18 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

TimeReportWhereRemark
Jul 5, 6:30 AM CDTFLASH FLOODSpeer, OKLOW WATER CROSSING FLOODED.
Jul 5, 7:58 AM CDTFLASH FLOODAntlers, OKNEW HOPE ROAD AND MILLER JUMBO ROAD NEAR ANTLERS ARE CLOSED DUE TO FLOODING.

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 00:00Z, 8.3 hours before the alert went out and 212 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.

Skew-T log-pSkew-T log-p diagram, Norman, OK at 00:00Z on 2017-07-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 172 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Norman, OK at 00:00Z on 2017-07-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 37 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
172 J/kg
Mixed-layer CIN
-298 J/kg
Mixed-layer LCL
1704 m above ground
0-6 km bulk shear
23 kt
0-1 km storm-relative helicity
37 m²/s²
0-3 km storm-relative helicity
117 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.0

Open this sounding in Storm Lab

The text

As transmitted.

554 
WGUS54 KTSA 050816
FFWTSA
OKC023-127-051415-
/O.NEW.KTSA.FF.W.0039.170705T0816Z-170705T1415Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Tulsa OK
316 AM CDT WED JUL 5 2017

The National Weather Service in Tulsa has issued a

* Flash Flood Warning for...
  Southwestern Pushmataha County in southeastern Oklahoma...
  Choctaw County in southeastern Oklahoma...

* Until 915 AM CDT

* At 315 AM CDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. 2 to 3 inches of rain have 
  fallen. Flash flooding is expected to begin shortly.

* Some locations that may experience flooding include...
  Hugo...                           Antlers...
  Boswell...                        Fort Towson...
  Sawyer...                         Rattan...
  Soper...                          Snow...
  Hugo Lake State Park...           Kellond...
  Kent...                           Goodland...
  Messer...                         Raymond Gary State Park...
  Moyers...                         Kosoma...
  Dunbar...                         Oleta...
  Cloudy...                         Grant...

Additional rainfall amounts of 1 to 2 inches are likely in the 
warned area.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Be especially cautious at night when it is harder to recognize the
dangers of flooding.

Please report flooding to your local law enforcement agency when you
can do so safely.

&&

LAT...LON 3388 9554 3393 9556 3394 9560 3391 9567
      3405 9594 3412 9594 3415 9598 3416 9598
      3416 9578 3451 9578 3451 9577 3452 9567
      3425 9511 3424 9515 3394 9516 3396 9523
      3389 9526 3390 9526 3391 9527 3387 9529

$$
2 follow-up statements
826 
WGUS74 KTSA 050949
FFSTSA

Flash Flood Statement
National Weather Service Tulsa OK
449 AM CDT WED JUL 5 2017

OKC023-127-051415-
/O.CON.KTSA.FF.W.0039.000000T0000Z-170705T1415Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Pushmataha OK-Choctaw OK-
449 AM CDT WED JUL 5 2017

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 915 AM CDT FOR
SOUTHWESTERN PUSHMATAHA AND CHOCTAW COUNTIES...

At 441 AM CDT, doppler radar indicated a cluster of strong 
thunderstorms producing heavy rain across southern Pushmataha 
county. These storms will continue to slowly move southeast into 
Choctaw county over the next few hours. 2 to 4 inches of rain have 
already fallen across portions of southwestern Pushmataha and 
eastern Choctaw counties. Additional rainfall amounts of 1 to 3 
inches are likely which will likely lead to significant flash 
flooding.

Some locations that may experience flooding include...
Hugo...                           Antlers...
Boswell...                        Fort Towson...
Sawyer...                         Rattan...
Soper...                          Snow...
Hugo Lake State Park...           Kellond...
Kent...                           Goodland...
Messer...                         Raymond Gary State Park...
Moyers...                         Kosoma...
Dunbar...                         Oleta...
Cloudy...                         Grant...



PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.

Please report flooding to your local law enforcement agency when you
can do so safely.

&&

LAT...LON 3388 9554 3393 9556 3394 9560 3391 9567
      3405 9594 3412 9594 3415 9598 3416 9598
      3416 9578 3451 9578 3451 9577 3452 9567
      3425 9511 3424 9515 3394 9516 3396 9523
      3389 9526 3390 9526 3391 9527 3387 9529

$$
201 
WGUS74 KTSA 051111
FFSTSA

Flash Flood Statement
National Weather Service Tulsa OK
611 AM CDT WED JUL 5 2017

OKC023-127-051415-
/O.CON.KTSA.FF.W.0039.000000T0000Z-170705T1415Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Pushmataha OK-Choctaw OK-
611 AM CDT WED JUL 5 2017

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 915 AM CDT FOR
SOUTHWESTERN PUSHMATAHA AND CHOCTAW COUNTIES...

...POTENTIALLY LIFE THREATENING FLASH FLOODING ONGOING...

At 6:04 AM CDT, doppler radar indicated a cluster of strong 
thunderstorms producing heavy rain across southern Pushmataha and 
Choctaw counties. These storms will continue to slowly move 
southeast over the next hour or two. Radar estimates that 4 to 6 
inches of rain have already fallen across portions of the warned 
area. Additional rainfall amounts of 1 to 2 inches are likely which 
will likely lead to significant and potentially life threatening 
flash flooding.

Some locations that may experience flooding include...
Hugo...                           Antlers...
Boswell...                        Fort Towson...
Sawyer...                         Rattan...
Soper...                          Snow...
Hugo Lake State Park...           Kellond...
Kent...                           Goodland...
Messer...                         Raymond Gary State Park...
Moyers...                         Kosoma...
Dunbar...                         Oleta...
Cloudy...                         Grant...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.

Please report flooding to your local law enforcement agency when you
can do so safely.

&&

LAT...LON 3388 9554 3393 9556 3394 9560 3391 9567
      3405 9594 3412 9594 3415 9598 3416 9598
      3416 9578 3451 9578 3451 9577 3452 9567
      3425 9511 3424 9515 3394 9516 3396 9523
      3389 9526 3390 9526 3391 9527 3387 9529

$$

The office that day

Everything else NWS Tulsa, OK issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 5, 2:29 AM CDTAreal Flood AdvisoryTSAChoctaw, Pushmataha2 hr
Jul 5, 5:22 AM CDTSpecial Weather StatementTSAChoctaw53 min
Jul 5, 8:06 AM CDTRiver Flood WarningTSAPushmataha20 hr
Jul 5, 9:10 AM CDTAreal Flood WarningTSAChoctaw, Pushmataha12 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.