Alert archive / Oklahoma / Flash Flood Warnings in 2021

Flash Flood Warning 37, NWS Norman, OK

June 28, 20214 counties in Oklahoma

NWS Norman, OK issued this flash flood warning at Jun 28, 2021, 3:24 PM CDT for 4 counties in Oklahoma. It was in force for 3 hr. 3 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
Jun 28, 2021, 3:24 PM CDT (20:24 UTC)
Expired
Jun 28, 2021, 6:30 PM CDT
In force
3 hr
Issued by
NWS Norman, OK
Area
Storm-based polygon
Flood severity
None

Counties Blaine County, OK, Caddo County, OK, Canadian County, OK, Kingfisher County, OK

The radar

The Norman radar (KTLX), 96 km from the middle of the area, began a volume at 20:25 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 28, 4:00 PM CDTFLOOD1 W Kingfisher, OKHIGHWAY 33 IS BLOCKED OFF FROM A FEW MILES WEST THROUGH A FEW MILES EAST OF KINGFISHER.
Jun 28, 4:22 PM CDTFLOOD2 W Kingfisher, OKBROADCAST MEDIA LIVE COVERAGE OF A WATER RESCUE. THE WATER WAS UP PAST THE TIRES ON A TRUCK.
Jun 28, 4:45 PM CDTHEAVY RAIN 4.8Kingfisher, OKTWITTER POST OF A RAIN GAUGE.

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

The nearest sounding before it

Dodge City, (KDDC), launched 12:00Z, 8.4 hours before the alert went out and 267 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, Dodge City, at 12:00Z on 2021-06-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 198 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, Dodge City, at 12:00Z on 2021-06-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -10 square meters per square second.19395878Sfc1 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
198 J/kg
Mixed-layer CIN
-62 J/kg
Mixed-layer LCL
1265 m above ground
0-6 km bulk shear
24 kt
0-1 km storm-relative helicity
-10 m²/s²
0-3 km storm-relative helicity
49 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

729 
WGUS54 KOUN 282024
FFWOUN
OKC011-015-017-073-282330-
/O.NEW.KOUN.FF.W.0037.210628T2024Z-210628T2330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Norman OK
324 PM CDT Mon Jun 28 2021

The National Weather Service in Norman has issued a

* Flash Flood Warning for...
  Northwestern Canadian County in central Oklahoma...
  Kingfisher County in central Oklahoma...
  Southeastern Blaine County in northwestern Oklahoma...
  Northwestern Caddo County in southwestern Oklahoma...

* Until 630 PM CDT.

* At 324 PM CDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Between 1 and 2 inches of rain 
  have fallen. Flash flooding is ongoing or expected to begin 
  shortly.

  HAZARD...Flash flooding caused by thunderstorms.

  SOURCE...Doppler radar.

  IMPACT...Flooding of small creeks and streams, urban areas,
           highways, streets and underpasses as well as other
           drainage and low lying areas.

* Some locations that will experience flash flooding include...
  Kingfisher, Hennessey, Geary, Okarche, Hydro, Dover, Bridgeport, 
  Greenfield, Loyal and Omega.

This includes the following highways...
	Interstate 40 between mile markers 87 and 90...and
	between mile markers 106 and 107.

Additional rainfall amounts of 1 to 3 inches are possible in the 
warned area.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

A Flash Flood Warning means that flooding is imminent or occurring. 
If you are in the warned area move to higher ground immediately. 
Residents living along streams and creeks should take immediate 
precautions to protect life and property.

&&

LAT...LON 3594 9827 3615 9789 3615 9768 3588 9768
      3564 9815 3553 9825 3553 9862 3554 9862

FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL...1-2 INCHES IN 2 HOURS 

$$

TL
1 follow-up statement
298 
WGUS74 KOUN 282104
FFSOUN

Flash Flood Statement
National Weather Service Norman OK
404 PM CDT Mon Jun 28 2021

OKC011-015-017-073-282330-
/O.CON.KOUN.FF.W.0037.000000T0000Z-210628T2330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Blaine OK-Caddo OK-Canadian OK-Kingfisher OK-
404 PM CDT Mon Jun 28 2021

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 630 PM CDT THIS 
EVENING FOR NORTHWESTERN CANADIAN, KINGFISHER, SOUTHEASTERN BLAINE 
AND NORTHWESTERN CADDO COUNTIES...

At 404 PM CDT, local law enforcement reported that Highways 33 and 
81 are impassable due to flowing flood waters in and around 
Kingfisher. Between 2 and 3 inches of rain have fallen. Flash 
flooding is ongoing!

HAZARD...Flash flooding caused by thunderstorms.

SOURCE...Law enforcement.

IMPACT...Flooding of small creeks and streams, urban areas,
         highways, streets and underpasses as well as other
         drainage and low lying areas.

Some locations that will experience flash flooding include...
  Kingfisher, Hennessey, Geary, Okarche, Hydro, Dover, Bridgeport, 
  Greenfield, Loyal and Omega.

This includes the following highways...
	Interstate 40 between mile markers 87 and 91...and
	between mile markers 106 and 107.

Additional rainfall amounts of 1 to 3 inches are possible in the 
warned area.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

A Flash Flood Warning means that flooding is imminent or occurring. 
If you are in the warned area move to higher ground immediately. 
Residents living along streams and creeks should take immediate 
precautions to protect life and property.

&&

LAT...LON 3594 9827 3615 9789 3615 9768 3588 9768
      3564 9815 3553 9825 3553 9862 3554 9862

FLASH FLOOD...OBSERVED
EXPECTED RAINFALL...1-3 INCHES IN 2 HOURS 

$$

TL

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 27, 7:02 PM CDTSpecial Weather StatementOUNHughes43 min
Jun 27, 7:22 PM CDTAreal Flood AdvisoryOUNPontotoc3 hr
Jun 27, 7:23 PM CDTAreal Flood AdvisoryOUNCoal, Hughes3 hr
Jun 27, 7:41 PM CDTSpecial Weather StatementOUNHughes49 min
Jun 28, 3:58 AM CDTRiver Flood AdvisoryOUNLincoln, Oklahoma, Pottawatomie6 hr
Jun 28, 3:58 AM CDTRiver Flood AdvisoryOUNCleveland, McClain5 hr
Jun 28, 9:52 AM CDTFlood WatchOUNAlfalfa, Beckham, Blaine, Caddo, Canadian, Cleveland and 23 more35 hr
Jun 28, 11:36 AM CDTAreal Flood AdvisoryOUNGarvin4 hr
Jun 28, 1:11 PM CDTAreal Flood AdvisoryOUNJackson4 hr
Jun 28, 1:12 PM CDTAreal Flood AdvisoryOUNGarfield, Kingfisher4 hr
Jun 28, 1:20 PM CDTSpecial Weather StatementOUNGarfield25 min
Jun 28, 2:08 PM CDTAreal Flood AdvisoryOUNGarfield, Kingfisher, Logan3 hr
Jun 28, 2:32 PM CDTFlash Flood WarningOUNCaddo, Grady3 hr
Jun 28, 2:32 PM CDTRiver Flood AdvisoryOUNPayne6 hr
Jun 28, 2:35 PM CDTAreal Flood AdvisoryOUNOklahoma115 min
Jun 28, 2:55 PM CDTAreal Flood AdvisoryOUNCanadian, Kingfisher4 hr
Jun 28, 3:01 PM CDTAreal Flood AdvisoryOUNGarfield, Kay, Noble3 hr
Jun 28, 5:05 PM CDTSpecial Weather StatementOUNLincoln25 min
Jun 28, 5:11 PM CDTSpecial Weather StatementOUNHughes19 min
Jun 28, 5:40 PM CDTAreal Flood AdvisoryOUNTillman3 hr
Jun 28, 5:56 PM CDTSpecial Weather StatementOUNMcClain34 min
Jun 28, 6:00 PM CDTSpecial Weather StatementOUNLincoln30 min
Jun 28, 6:27 PM CDTAreal Flood AdvisoryOUNCleveland, Lincoln, Logan, McClain, Oklahoma2 hr
Jun 28, 6:32 PM CDTFlash Flood WarningOUNBlaine, Kingfisher4 hr

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.