Alert archive / Oklahoma / Flash Flood Warnings in 2016

Flash Flood Warning 18, NWS Tulsa, OK

August 31, 2016Ottawa County, Oklahoma

NWS Tulsa, OK issued this flash flood warning at Aug 31, 2016, 8:03 AM CDT for Ottawa County, Oklahoma. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Aug 31, 2016, 8:03 AM CDT (13:03 UTC)
Expired
Aug 31, 2016, 11:00 AM CDT
In force
3 hr
Issued by
NWS Tulsa, OK
Area
Storm-based polygon
Flood severity
None

County Ottawa County, OK

The radar

The Tulsa radar (KINX), 109 km from the middle of the area, began a volume at 13:07 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, 1.1 hours before the alert went out and 91 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 12:00Z on 2016-08-31Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 855 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 12:00Z on 2016-08-31The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 79 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
855 J/kg
Mixed-layer CIN
-50 J/kg
Mixed-layer LCL
757 m above ground
0-6 km bulk shear
11 kt
0-1 km storm-relative helicity
79 m²/s²
0-3 km storm-relative helicity
95 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

969 
WGUS54 KTSA 311303
FFWTSA
OKC115-311600-
/O.NEW.KTSA.FF.W.0018.160831T1303Z-160831T1600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TULSA OK
803 AM CDT WED AUG 31 2016

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTHWESTERN OTTAWA COUNTY IN NORTHEASTERN OKLAHOMA...

* UNTIL 1100 AM CDT

* AT 803 AM CDT...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING
  HEAVY RAIN ACROSS THE WARNED AREA. 3 TO 5 INCHES OF RAIN HAVE
  FALLEN IN THE PAST FEW HOURS. FLASH FLOODING IS EXPECTED TO BEGIN
  SHORTLY.

* SOME LOCATIONS THAT MAY EXPERIENCE FLOODING INCLUDE...
  COMMERCE...                       QUAPAW...
  TREECE...                         PICHER...
  CARDIN...                         

ADDITIONAL RAINFALL AMOUNTS OF 1 TO 2 INCHES ARE POSSIBLE IN THE
WARNED AREA.

THIS INCLUDES INTERSTATE 44 BETWEEN MILE MARKERS 315 AND 317.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

TURN AROUND...DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...COUNTRY ROADS...FARMLAND...AND OTHER LOW LYING
SPOTS.

&&

LAT...LON 3692 9472 3692 9499 3700 9499 3700 9469

$$
2 follow-up statements
597 
WGUS74 KTSA 311428
FFSTSA

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
928 AM CDT WED AUG 31 2016

OKC115-311600-
/O.CON.KTSA.FF.W.0018.000000T0000Z-160831T1600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
OTTAWA OK-
928 AM CDT WED AUG 31 2016

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1100 AM CDT FOR
NORTHWESTERN OTTAWA COUNTY...

AT 925 AM CDT...DOPPLER RADAR INDICATED LIGHT RAIN CONTINUING ACROSS
NORTHERN PORTIONS OF OTTAWA COUNTY. FLASH FLOODING IS LIKELY
OCCURRING FROM EARLIER HEAVY RAINFALL...ESPECIALLY ACROSS AREAS TO
THE NORTH OF COMMERCE AND WEST OF QUAPAW. 3 TO 6 INCHES OF RAIN HAVE
FALLEN.

SOME LOCATIONS THAT MAY EXPERIENCE FLOODING INCLUDE...
COMMERCE...                       QUAPAW...
TREECE...                         PICHER...
CARDIN...                         

THIS INCLUDES INTERSTATE 44 BETWEEN MILE MARKERS 315 AND 317.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...COUNTRY ROADS...FARMLAND...AND OTHER LOW LYING
SPOTS.

&&

LAT...LON 3692 9472 3692 9499 3700 9499 3700 9469

$$
237 
WGUS74 KTSA 311558
FFSTSA

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
1058 AM CDT WED AUG 31 2016

OKC115-311607-
/O.EXP.KTSA.FF.W.0018.000000T0000Z-160831T1600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
OTTAWA OK-
1058 AM CDT WED AUG 31 2016

...THE FLASH FLOOD WARNING FOR NORTHWESTERN OTTAWA COUNTY WILL EXPIRE
AT 1100 AM CDT...

THE HEAVY RAIN HAS ENDED, AND FLOODING IS NO LONGER EXPECTED TO POSE
A THREAT. ADDITIONAL SHOWERS AND THUNDERSTORMS MAY DEVELOP LATER
THIS AFTERNOON THAT COULD PRODUCE MORE HEAVY RAIN. REMAIN ALERT FOR
POSSIBLE ADDITIONAL ADVISORIES OR WARNINGS.

LAT...LON 3692 9472 3692 9499 3700 9499 3700 9469

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 31, 12:54 AM CDTAreal Flood AdvisoryTSACraig3 hr
Aug 31, 6:39 AM CDTAreal Flood AdvisoryTSAOttawa3 hr
Aug 31, 1:20 PM CDTSpecial Weather StatementTSAOsage25 min
Aug 31, 2:58 PM CDTSpecial Weather StatementTSATulsa32 min
Aug 31, 3:26 PM CDTSpecial Weather StatementTSACreek34 min
Aug 31, 3:30 PM CDTSpecial Weather StatementTSATulsa30 min
Aug 31, 3:55 PM CDTSpecial Weather StatementTSAWagoner35 min
Aug 31, 3:58 PM CDTSpecial Weather StatementTSAWagoner32 min
Aug 31, 4:41 PM CDTSpecial Weather StatementTSAMuskogee34 min
Aug 31, 5:04 PM CDTSpecial Weather StatementTSAAdair26 min
Aug 31, 5:30 PM CDTSpecial Weather StatementTSAAdair30 min

Nearby

Flash Flood Warnings in Oklahoma, 2016Every flash flood warning in 2016

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.