Alert archive / Oklahoma / Flash Flood Warnings in 2019

Flash Flood Warning 4, NWS Tulsa, OK

April 30, 20199 counties in Oklahoma

NWS Tulsa, OK issued this flash flood warning at Apr 30, 2019, 7:45 PM CDT for 9 counties in 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: Apr 30, 2019, 7:45 PM CDT (00:45 UTC)
Expired: May 1, 2019, 1:45 AM CDT
In force: 6 hr
Issued by: NWS Tulsa, OK
Area: Storm-based polygon
Flood severity: None

Counties Craig County, OK, Creek County, OK, Mayes County, OK, Okmulgee County, OK, Osage County, OK, Rogers County, OK, Tulsa County, OK, Wagoner County, OK, Washington County, OK

The radar

The Tulsa radar (KINX), 29 km from the middle of the area, began a volume at 00:45 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
Apr 30, 8:09 PM CDT	FLASH FLOOD	2 N Broken Arrow, OK	STREET FLOODING AND VEHICLES STRANDED.
Apr 30, 8:34 PM CDT	HEAVY RAIN 3.23	Tulsa, OK	3.23 INCHES MEASURED IN PAST 3 HOURS AT 11TH AND MINGO RAIN GAUGE.

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, 0.8 hours before the alert went out and 174 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 65 J/kg
Mixed-layer CIN: -282 J/kg
Mixed-layer LCL: 862 m above ground
0-6 km bulk shear: 58 kt
0-1 km storm-relative helicity: 129 m²/s²
0-3 km storm-relative helicity: 139 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

The text

As transmitted.

251 
WGUS54 KTSA 010045
FFWTSA
OKC035-037-097-111-113-131-143-145-147-010645-
/O.NEW.KTSA.FF.W.0004.190501T0045Z-190501T0645Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Tulsa OK
745 PM CDT Tue Apr 30 2019

The National Weather Service in Tulsa has issued a

* Flash Flood Warning for...
  Southwestern Craig County in northeastern Oklahoma...
  Rogers County in northeastern Oklahoma...
  Southeastern Osage County in northeastern Oklahoma...
  Creek County in northeastern Oklahoma...
  Northwestern Mayes County in northeastern Oklahoma...
  South central Washington County in northeastern Oklahoma...
  Northwestern Wagoner County in northeastern Oklahoma...
  Northern Okmulgee County in northeastern Oklahoma...
  Tulsa County in northeastern Oklahoma...

* Until 145 AM CDT Wednesday.

* At 744 PM CDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. 1 to 3 inches of rain have 
  fallen. Flash flooding is expected to begin shortly.

* Some locations that may experience flooding include...
  Tulsa...                          Broken Arrow...
  Sand Springs...                   Claremore...
  Bristow...                        Pryor...
  Owasso...                         Bixby...
  Sapulpa...                        Jenks...
  Glenpool...                       Coweta...
  Pryor Creek...                    Skiatook...
  Catoosa...                        Collinsville...
  Verdigris...                      Mannford...
  Chelsea...                        Inola...

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

This includes Interstate 44 between mile markers 178 and 272.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

&&

LAT...LON 3670 9526 3628 9530 3585 9569 3585 9577
      3578 9577 3564 9618 3564 9662 3594 9661
      3616 9635 3616 9627 3621 9624 3623 9628
      3638 9610 3660 9553 3660 9543 3663 9543

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 30, 7:07 PM CDT	Areal Flood Advisory	TSA	Creek, Tulsa	3 hr
Apr 30, 8:48 PM CDT	Flash Flood Warning	TSA	Cherokee, Delaware, Mayes, Ottawa	6 hr
Apr 30, 8:57 PM CDT	Special Weather Statement	TSA	McIntosh, Muskogee	48 min
Apr 30, 9:01 PM CDT	Special Weather Statement	TSA	Cherokee	29 min
Apr 30, 9:14 PM CDT	Special Weather Statement	TSA	Delaware	31 min
Apr 30, 9:17 PM CDT	Special Weather Statement	TSA	Adair, Cherokee, Muskogee	28 min
Apr 30, 9:43 PM CDT	Areal Flood Warning	TSA	Craig, Nowata, Osage, Rogers, Washington	21 hr
Apr 30, 9:49 PM CDT	Tornado Warning	TSA	Pittsburg	41 min
Apr 30, 9:54 PM CDT	Special Weather Statement	TSA	Adair	51 min
Apr 30, 10:22 PM CDT	Tornado Warning	TSA	Pittsburg	23 min
Apr 30, 10:36 PM CDT	Tornado Warning	TSA	Pittsburg	24 min
Apr 30, 10:42 PM CDT	Severe Thunderstorm Warning	TSA	Latimer, Pittsburg, Pushmataha	48 min
Apr 30, 10:47 PM CDT	Tornado Warning Tornado observed	TSA	Haskell, Latimer, Pittsburg	43 min
Apr 30, 11:18 PM CDT	Severe Thunderstorm Warning	TSA	Haskell, Latimer, LeFlore, Muskogee, Sequoyah	42 min
Apr 30, 11:21 PM CDT	Severe Thunderstorm Warning	TSA	Haskell, Latimer, LeFlore, Pushmataha	39 min
Apr 30, 11:44 PM CDT	Severe Thunderstorm Warning	TSA	Latimer, LeFlore	46 min
Apr 30, 11:47 PM CDT	Severe Thunderstorm Warning	TSA	Haskell, LeFlore, Sequoyah	43 min
Apr 30, 11:53 PM CDT	Tornado Warning	TSA	LeFlore	24 min
May 1, 12:14 AM CDT	Areal Flood Warning	TSA	Craig, Delaware, Mayes, Ottawa	18 hr
May 1, 12:41 AM CDT	River Flood Warning	TSA	Ottawa	61 hr
May 1, 1:15 AM CDT	Areal Flood Advisory	TSA	Pittsburg	3 hr
May 1, 1:16 AM CDT	Areal Flood Warning	TSA	Delaware, Mayes, Ottawa	18 hr
May 1, 1:33 AM CDT	Special Weather Statement	TSA	Hughes	42 min
May 1, 1:37 AM CDT	Areal Flood Advisory	TSA	Choctaw, Latimer, LeFlore, Pittsburg, Pushmataha	3 hr
May 1, 2:36 AM CDT	Special Weather Statement	TSA	Okfuskee, Okmulgee	24 min
May 1, 2:49 AM CDT	Special Weather Statement	TSA	Okfuskee	41 min
May 1, 2:54 AM CDT	River Flood Warning	TSA	Creek	17 hr
May 1, 3:05 AM CDT	Areal Flood Advisory	TSA	Haskell, McIntosh, Okfuskee, Okmulgee, Pittsburg	3 hr
May 1, 3:17 AM CDT	Special Weather Statement	TSA	McIntosh, Muskogee, Okfuskee, Okmulgee	43 min
May 1, 3:47 AM CDT	Flash Flood Warning	TSA	McIntosh, Okfuskee, Okmulgee	6 hr
May 1, 3:54 AM CDT	Flash Flood Warning	TSA	Haskell, Latimer, McIntosh, Muskogee, Pittsburg	6 hr
May 1, 4:04 AM CDT	Special Weather Statement	TSA	Pittsburg	26 min
May 1, 4:20 AM CDT	Special Weather Statement	TSA	Haskell	25 min
May 1, 4:33 AM CDT	Special Weather Statement	TSA	Latimer, Pushmataha	42 min
May 1, 4:38 AM CDT	Special Weather Statement	TSA	LeFlore	52 min
May 1, 5:15 AM CDT	Flash Flood Warning	TSA	Haskell, Latimer, LeFlore, Pittsburg, Pushmataha	3 hr
May 1, 7:35 AM CDT	Areal Flood Warning	TSA	Haskell, Latimer, LeFlore, McIntosh, Muskogee, Okfuskee and 3 more	9 hr
May 1, 8:50 AM CDT	River Flood Warning	TSA	Adair, Cherokee, Delaware	30 hr
May 1, 2:51 PM CDT	River Flood Warning	TSA	LeFlore	11 hr
May 1, 3:18 PM CDT	Flash Flood Watch	TSA	Adair, Cherokee, McIntosh, Muskogee, Okfuskee, Okmulgee and 1 more	13 hr
May 1, 6:52 PM CDT	Special Weather Statement	TSA	Pittsburg	38 min

Nearby

Flash Flood Warnings in Oklahoma, 2019 Every flash flood warning in 2019

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.