Alert archive / Oklahoma / Flash Flood Warnings in 2021

Flash Flood Warning 37, NWS Tulsa, OK

June 26, 2021Craig County, Delaware County, Ottawa County, Oklahoma

NWS Tulsa, OK issued this flash flood warning at Jun 26, 2021, 5:38 AM CDT for Craig County, Delaware County, Ottawa County, Oklahoma. It was in force for 8 hr. 1 report 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
Jun 26, 2021, 5:38 AM CDT (10:38 UTC)
Expired
Jun 26, 2021, 1:45 PM CDT
In force
8 hr
Issued by
NWS Tulsa, OK
Area
Storm-based polygon
Flood severity
None

Counties Craig County, OK, Delaware County, OK, Ottawa County, OK

The radar

The Tulsa radar (KINX), 63 km from the middle of the area, began a volume at 10:39 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
Jun 26, 6:35 AM CDTFLASH FLOOD6 Sse Peoria, OKPUBLIC REPORT OF FLASH FLOODING.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 10.6 hours before the alert went out and 130 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, Springfield, MO at 00:00Z on 2021-06-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1507 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, Springfield, MO at 00:00Z on 2021-06-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 31 square meters per square second.1939Sfc1 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
1507 J/kg
Mixed-layer CIN
-5 J/kg
Mixed-layer LCL
1381 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
31 m²/s²
0-3 km storm-relative helicity
110 m²/s²
Significant tornado parameter
0.1
Supercell composite
2.0

Open this sounding in Storm Lab

The text

As transmitted.

369 
WGUS54 KTSA 261038
FFWTSA
OKC035-041-115-261345-
/O.NEW.KTSA.FF.W.0037.210626T1038Z-210626T1345Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Tulsa OK
538 AM CDT Sat Jun 26 2021

The National Weather Service in Tulsa has issued a

* Flash Flood Warning for...
  Craig County in northeastern Oklahoma...
  Northwestern Delaware County in northeastern Oklahoma...
  Ottawa County in northeastern Oklahoma...

* Until 845 AM CDT.

* At 538 AM CDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Between 1 and 3 inches of rain 
  have fallen. Additional rainfall amounts of 1 to 2 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...
  Miami...                           Vinita...
  Commerce...                        Fairland...
  Afton...                           Quapaw...
  Welch...                           Bernice...
  Bluejacket...                      Wyandotte...
  Picher...                          Narcissa...
  Bernice State Park...              Cleora...
  White Oak...                       Ottawa...
  Peoria...                          Cardin...
  Pyramid Corners...                 Twin Bridges State Park...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3660 9543 3692 9518 3699 9510 3700 9462
      3674 9462 3654 9501 3658 9533 3659 9533
      3660 9533 3660 9534 3660 9535 3660 9538
      3660 9539 3660 9540 3660 9542

FLASH FLOOD...RADAR INDICATED

$$

RJS
2 follow-up statements
628 
WGUS74 KTSA 261251
FFSTSA

Flash Flood Statement
National Weather Service Tulsa OK
751 AM CDT Sat Jun 26 2021

OKC035-041-115-261345-
/O.CON.KTSA.FF.W.0037.000000T0000Z-210626T1345Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Craig OK-Delaware OK-Ottawa OK-
751 AM CDT Sat Jun 26 2021

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 845 AM CDT THIS 
MORNING FOR CRAIG, NORTHWESTERN DELAWARE AND OTTAWA COUNTIES...

At 751 AM CDT, Doppler radar indicated thunderstorms producing heavy 
rain across the warned area. Emergency management reported between 5 
and 6 inches of rain have fallen over parts of the warned area. 
Additional rainfall amounts of 0.5 to 1.5 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...
Miami...                           Vinita...
Commerce...                        Fairland...
Afton...                           Quapaw...
Welch...                           Bernice...
Bluejacket...                      Wyandotte...
Picher...                          Narcissa...
Bernice State Park...              Cleora...
White Oak...                       Ottawa...
Peoria...                          Cardin...
Pyramid Corners...                 Twin Bridges State Park...

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 3660 9543 3692 9518 3699 9510 3700 9462
      3674 9462 3654 9501 3658 9533 3659 9533
      3660 9533 3660 9534 3660 9535 3660 9538
      3660 9539 3660 9540 3660 9542

FLASH FLOOD...RADAR INDICATED

$$
449 
WGUS54 KTSA 261334
FFWTSA
OKC035-041-115-261845-
/O.EXT.KTSA.FF.W.0037.000000T0000Z-210626T1845Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Tulsa OK
834 AM CDT Sat Jun 26 2021

The National Weather Service in Tulsa has extended the

* Flash Flood Warning for...
  Southern Craig County in northeastern Oklahoma...
  Northwestern Delaware County in northeastern Oklahoma...
  Ottawa County in northeastern Oklahoma...

* Until 145 PM CDT.

* At 834 AM CDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Emergency management reported 
  between 5 and 6 inches of rain have fallen with locally higher 
  radar estimates. Additional rainfall amounts of 0.5 to 1.5 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...
  Miami...                           Vinita...
  Commerce...                        Fairland...
  Afton...                           Quapaw...
  Bernice...                         Bluejacket...
  Wyandotte...                       Narcissa...
  Bernice State Park...              Cleora...
  White Oak...                       Ottawa...
  Peoria...                          Twin Bridges State Park...

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 3660 9543 3670 9530 3694 9492 3700 9463
      3700 9462 3674 9462 3655 9501 3658 9533
      3659 9533 3660 9533 3660 9534 3660 9538
      3660 9540 3660 9542

FLASH FLOOD...RADAR INDICATED

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 25, 11:19 PM CDTSpecial Weather StatementTSACreek, Osage, Pawnee56 min
Jun 26, 12:15 AM CDTSpecial Weather StatementTSAOsage45 min
Jun 26, 2:53 AM CDTFlash Flood WatchTSAAdair, Cherokee, Craig, Creek, Delaware, McIntosh and 11 more52 hr
Jun 26, 4:32 AM CDTAreal Flood AdvisoryTSACraig, Delaware, Nowata, Osage, Ottawa, Pawnee and 3 more3 hr
Jun 26, 4:53 AM CDTSpecial Weather StatementTSACreek, Okfuskee67 min
Jun 26, 5:42 AM CDTSpecial Weather StatementTSAOkmulgee, Tulsa48 min
Jun 26, 6:24 AM CDTSpecial Weather StatementTSAMayes, Rogers, Wagoner51 min
Jun 26, 6:33 AM CDTAreal Flood AdvisoryTSAMayes, Rogers, Tulsa, Wagoner117 min
Jun 26, 6:39 AM CDTSevere Thunderstorm WarningTSACherokee, Mayes, Wagoner14 min
Jun 26, 6:56 AM CDTSpecial Weather StatementTSADelaware, Mayes49 min
Jun 26, 7:42 AM CDTSpecial Weather StatementTSADelaware33 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.