Alert archive / Oklahoma / Flash Flood Warnings in 1998

Flash Flood Warning 41, NWS Tulsa, OK

October 5, 1998Nowata County, Washington County, Oklahoma

NWS Tulsa, OK issued this flash flood warning at Oct 5, 1998, 12:11 AM CDT for Nowata County, Washington County, Oklahoma. It was in force for 2 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Oct 5, 1998, 12:11 AM CDT (05:11 UTC)
Expired
Oct 5, 1998, 2:15 AM CDT
In force
2 hr
Issued by
NWS Tulsa, OK
Area
Whole counties

Counties Nowata County, OK, Washington County, OK

The nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 5.2 hours before the alert went out and 175 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 1998-10-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1811 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 1998-10-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 236 square meters per square second.193958Sfc1 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
1811 J/kg
Mixed-layer CIN
-52 J/kg
Mixed-layer LCL
918 m above ground
0-6 km bulk shear
47 kt
0-1 km storm-relative helicity
236 m²/s²
0-3 km storm-relative helicity
352 m²/s²
Significant tornado parameter
2.7
Supercell composite
19.4

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KTUL 050515
FFWTUL
OKC105-143-147-050715-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TULSA OK
1211 AM CDT MON OCT 5 1998

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* FLASH FLOOD WARNING FOR
     NORTHERN TULSA COUNTY IN NORTHEAST OKLAHOMA
     WASHINGTON COUNTY IN NORTHEAST OKLAHOMA
     NOWATA COUNTY IN NORTHEAST OKLAHOMA

* UNTIL 215 AM CDT

* DOPPLER RADAR INDICATES THAT VERY HEAVY RAINS HAVE FALLEN OVER 
NORTHERN TULSA...WASHINGTON AND NOWATA COUNTIES DURING THE EVENING. 
REPORTS SHOW THAT OVER FOUR INCHES OF RAIN HAS ALREADY FALLEN OVER 
PARTS OF THIS AREA. THUNDERSTORMS WILL CONTINUE TO MOVE ACROSS THIS 
SAME GENERAL AREA AND THESE ADDITIONAL HEAVY RAINS WILL CAUSE FLASH 
FLOODING.

EXCESSIVE RUNOFF FROM THIS STORM WILL CAUSE FLASH FLOODING OF SMALL
CREEKS AND STREAMS...COUNTRY ROADS...NORMALLY DRY WASHES...AS WELL AS
FARMLAND ALONG THE BANKS OF CREEKS AND STREAMS.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODS AND FLASH FLOODS. IF FLASH FLOODING IS OBSERVED ACT
QUICKLY. MOVE UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY
IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 4, 7:00 PM CDTTornado WarningTSAPawnee45 min
Oct 4, 7:35 PM CDTTornado WarningTSAOsage, Pawnee40 min
Oct 4, 8:12 PM CDTTornado WarningTSAOsage48 min
Oct 4, 8:20 PM CDTTornado WarningTSAPawnee25 min
Oct 4, 8:30 PM CDTTornado WarningTSACreek45 min
Oct 4, 8:39 PM CDTTornado WarningTSAOsage, Pawnee51 min
Oct 4, 9:01 PM CDTSevere Thunderstorm WarningTSATulsa, Washington29 min
Oct 4, 9:11 PM CDTFlash Flood WarningTSAOsage, Pawnee3 hr
Oct 4, 9:11 PM CDTSevere Thunderstorm WarningTSANowata, Rogers34 min
Oct 4, 9:27 PM CDTTornado WarningTSAOsage, Pawnee33 min
Oct 4, 9:40 PM CDTTornado WarningTSACreek, Okfuskee50 min
Oct 4, 9:49 PM CDTSevere Thunderstorm WarningTSACraig, Nowata, Rogers56 min
Oct 4, 9:54 PM CDTSevere Thunderstorm WarningTSAOsage36 min
Oct 4, 10:02 PM CDTTornado WarningTSATulsa, Washington43 min
Oct 4, 10:11 PM CDTTornado WarningTSACraig, Nowata49 min
Oct 4, 10:26 PM CDTTornado WarningTSARogers34 min
Oct 4, 10:27 PM CDTTornado WarningTSAOkfuskee48 min
Oct 4, 10:36 PM CDTTornado WarningTSATulsa, Washington39 min
Oct 4, 10:45 PM CDTSevere Thunderstorm WarningTSACreek, Okmulgee45 min
Oct 4, 10:49 PM CDTTornado WarningTSACreek, Okmulgee41 min
Oct 4, 10:56 PM CDTTornado WarningTSARogers34 min
Oct 4, 11:07 PM CDTTornado WarningTSAOkfuskee38 min
Oct 4, 11:24 PM CDTSevere Thunderstorm WarningTSACraig36 min
Oct 4, 11:24 PM CDTTornado WarningTSAMuskogee, Okmulgee51 min
Oct 4, 11:52 PM CDTFlash Flood WarningTSAOsage, Pawnee2 hr
Oct 4, 11:54 PM CDTSevere Thunderstorm WarningTSATulsa, Wagoner51 min
Oct 5, 12:03 AM CDTSevere Thunderstorm WarningTSACreek, Okfuskee, Okmulgee42 min
Oct 5, 12:10 AM CDTSevere Thunderstorm WarningTSAMcIntosh, Muskogee, Wagoner50 min
Oct 5, 12:11 AM CDTFlash Flood WarningTSATulsa2 hr
Oct 5, 12:16 AM CDTTornado WarningTSAMuskogee, Wagoner29 min
Oct 5, 12:29 AM CDTTornado WarningTSACherokee46 min
Oct 5, 12:35 AM CDTFlash Flood WarningTSACreek, Okmulgee115 min
Oct 5, 12:38 AM CDTSevere Thunderstorm WarningTSACreek, Okmulgee52 min
Oct 5, 12:56 AM CDTSevere Thunderstorm WarningTSAAdair, Cherokee, Delaware49 min
Oct 5, 1:08 AM CDTSevere Thunderstorm WarningTSACraig37 min
Oct 5, 1:09 AM CDTSevere Thunderstorm WarningTSAMuskogee, Wagoner51 min
Oct 5, 1:36 AM CDTSevere Thunderstorm WarningTSAOttawa39 min
Oct 5, 1:49 AM CDTSevere Thunderstorm WarningTSAAdair, Cherokee, Delaware41 min
Oct 5, 2:01 AM CDTFlash Flood WarningTSACherokee, Craig, Delaware, Mayes, Ottawa3 hr
Oct 5, 2:01 AM CDTFlash Flood WarningTSACreek, Okmulgee, Osage, Pawnee, Rogers, Tulsa and 2 more3 hr
Oct 5, 2:01 AM CDTFlash Flood WarningTSAMuskogee3 hr
Oct 5, 2:01 AM CDTFlash Flood WarningTSANowata3 hr
Oct 5, 3:34 AM CDTSevere Thunderstorm WarningTSADelaware26 min
Oct 5, 3:56 AM CDTSevere Thunderstorm WarningTSADelaware49 min
Oct 5, 4:35 AM CDTFlash Flood WarningTSACherokee, Craig, Delaware, Mayes, Ottawa3 hr
Oct 5, 4:35 AM CDTFlash Flood WarningTSACreek, Osage, Pawnee, Tulsa3 hr
Oct 5, 4:35 AM CDTFlash Flood WarningTSANowata, Rogers, Washington3 hr
Oct 5, 4:35 AM CDTFlash Flood WarningTSAWagoner3 hr
Oct 5, 7:55 AM CDTFlash Flood WarningTSACherokee, Mayes, Muskogee, Okmulgee, Rogers, Tulsa and 1 more3 hr
Oct 5, 7:55 AM CDTFlash Flood WarningTSACreek, Okfuskee3 hr
Oct 5, 7:55 AM CDTFlash Flood WarningTSACraig, Delaware, Ottawa3 hr
Oct 5, 7:55 AM CDTFlash Flood WarningTSAAdair3 hr
Oct 5, 10:53 AM CDTFlash Flood WarningTSAHaskell, McIntosh, Pittsburg3 hr
Oct 5, 10:53 AM CDTFlash Flood WarningTSAAdair, Cherokee, Delaware, Muskogee, Sequoyah3 hr
Oct 5, 1:45 PM CDTFlash Flood WarningTSALatimer, Pushmataha3 hr
Oct 5, 1:45 PM CDTFlash Flood WarningTSAHaskell3 hr
Oct 5, 1:46 PM CDTFlash Flood WarningTSAPushmataha3 hr
Oct 5, 1:49 PM CDTFlash Flood WarningTSAAdair3 hr
Oct 5, 1:59 PM CDTFlash Flood WarningTSALeFlore, Sequoyah3 hr
Oct 5, 2:09 PM CDTSevere Thunderstorm WarningTSAPushmataha61 min
Oct 5, 2:45 PM CDTFlash Flood WarningTSALeFlore, Sequoyah2 hr
Oct 5, 3:15 PM CDTFlash Flood WarningTSALeFlore3 hr
Oct 5, 4:20 PM CDTSevere Thunderstorm WarningTSALeFlore25 min
Oct 5, 5:42 PM CDTSevere Thunderstorm WarningTSAHaskell, LeFlore, Sequoyah33 min

Nearby

Flash Flood Warnings in Oklahoma, 1998Every flash flood warning in 1998

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.