Alert archive / Oklahoma / Flash Flood Warnings in 2016

Flash Flood Warning 21, NWS Tulsa, OK

September 8, 2016Craig County, Delaware County, Ottawa County, Oklahoma

NWS Tulsa, OK issued this flash flood warning at Sep 8, 2016, 8:48 PM CDT for Craig County, Delaware County, Ottawa County, Oklahoma. It was in force for 4 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
Sep 8, 2016, 8:48 PM CDT (01:48 UTC)
Expired
Sep 9, 2016, 12:45 AM CDT
In force
4 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), 82 km from the middle of the area, began a volume at 01:46 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 00:00Z, 1.8 hours before the alert went out and 98 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 2016-09-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 425 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 2016-09-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 144 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
425 J/kg
Mixed-layer CIN
-107 J/kg
Mixed-layer LCL
1214 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
144 m²/s²
0-3 km storm-relative helicity
220 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.4

Open this sounding in Storm Lab

The text

As transmitted.

169 
WGUS54 KTSA 090148
FFWTSA
OKC035-041-115-090545-
/O.NEW.KTSA.FF.W.0021.160909T0148Z-160909T0545Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TULSA OK
848 PM CDT THU SEP 8 2016

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTHERN OTTAWA COUNTY IN NORTHEASTERN OKLAHOMA...
  NORTHERN DELAWARE COUNTY IN NORTHEASTERN OKLAHOMA...
  SOUTHEASTERN CRAIG COUNTY IN NORTHEASTERN OKLAHOMA...

* UNTIL 1245 AM CDT

* AT 844 PM CDT...DOPPLER RADAR DETECTED THUNDERSTORMS PRODUCING
  HEAVY RAIN AND TRAINING OVER THE WARNED AREA. RADAR ESTIMATES THAT
  2 TO 4 INCHES OF RAIN HAS FALLEN OR WILL FALL OVER PORTIONS OF THE
  WARNED AREA. FLASH FLOODING IS LIKELY IN SPOTS.

* SOME LOCATIONS THAT MAY EXPERIENCE FLOODING INCLUDE...
  VINITA...                         GROVE...
  FAIRLAND...                       AFTON...
  BERNICE...                        HONEY CREEK STATE PARK...
  CLEORA...                         BERNICE STATE PARK...

ADDITIONAL RAINFALL AMOUNTS OF 1 INCH OR MORE ARE POSSIBLE IN THE
WARNED AREA AS STORMS CONTINUE TO REDEVELOP TO THE WEST AND MOVE
OVER THE WARNED AREA.

THIS INCLUDES INTERSTATE 44 BETWEEN MILE MARKERS 282 AND 300.
 
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.

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

&&

LAT...LON 3653 9462 3654 9518 3675 9518 3677 9462

$$

LACY
2 follow-up statements
073 
WGUS74 KTSA 090257
FFSTSA

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
957 PM CDT THU SEP 8 2016

OKC035-041-115-090545-
/O.CON.KTSA.FF.W.0021.000000T0000Z-160909T0545Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
OTTAWA OK-DELAWARE OK-CRAIG OK-
957 PM CDT THU SEP 8 2016

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1245 AM CDT FOR
SOUTHERN OTTAWA...NORTHERN DELAWARE AND SOUTHEASTERN CRAIG
COUNTIES...

AT 956 PM CDT...DOPPLER RADAR DETECTED THAT STORMS HAVE FINALLY
EXITED THE WARNED AREA. HOWEVER...RADAR ESTIMATES THAT BETWEEN 4 AND
6 INCHE OF RAIN HAS FALLEN. FLASH FLOODING IS EXPECTED TO BEGIN
OR HAS ALREADY BEGUN.

SOME LOCATIONS THAT MAY EXPERIENCE FLOODING INCLUDE...
VINITA...                         GROVE...
FAIRLAND...                       AFTON...
BERNICE...                        HONEY CREEK STATE PARK...
CLEORA...                         BERNICE STATE PARK...

THIS INCLUDES INTERSTATE 44 BETWEEN MILE MARKERS 282 AND 300.
 
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.

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

&&

LAT...LON 3653 9462 3654 9518 3675 9518 3677 9462

$$

LACY
834 
WGUS74 KTSA 090538
FFSTSA

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
1238 AM CDT FRI SEP 9 2016

OKC035-041-115-090548-
/O.EXP.KTSA.FF.W.0021.000000T0000Z-160909T0545Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
OTTAWA OK-DELAWARE OK-CRAIG OK-
1238 AM CDT FRI SEP 9 2016

...THE FLASH FLOOD WARNING FOR SOUTHERN OTTAWA...NORTHERN DELAWARE
AND SOUTHEASTERN CRAIG COUNTIES WILL EXPIRE AT 1245 AM CDT...

THE HEAVY RAIN HAS ENDED. FLOODING IS NO LONGER EXPECTED TO POSE A
THREAT. PLEASE CONTINUE TO HEED ANY REMAINING ROAD CLOSURES.

LAT...LON 3653 9462 3654 9518 3675 9518 3677 9462

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 8, 7:34 PM CDTSpecial Weather StatementTSACraig26 min
Sep 8, 8:03 PM CDTSpecial Weather StatementTSAOttawa27 min
Sep 8, 8:25 PM CDTSpecial Weather StatementTSAOttawa35 min
Sep 9, 5:38 AM CDTSpecial Weather StatementTSAMayes52 min
Sep 9, 8:37 AM CDTRiver Flood WarningTSAOttawa5 days

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.