Alert archive / Oklahoma / Flash Flood Warnings in 1999
Flash Flood Warning 8, NWS Tulsa, OK
NWS Tulsa, OK issued this flash flood warning at Apr 14, 1999, 7:33 PM CDT for Latimer 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 the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties.
The facts
- Issued
- Apr 14, 1999, 7:33 PM CDT (00:33 UTC)
- Expired
- Apr 14, 1999, 10:30 PM CDT
- In force
- 3 hr
- Issued by
- NWS Tulsa, OK
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Latimer County, OK
The nearest sounding before it
Norman, OK (KOUN), launched 00:00Z, 0.6 hours before the alert went out and 200 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.
- Mixed-layer CAPE
- 31 J/kg
- Mixed-layer CIN
- -77 J/kg
- Mixed-layer LCL
- 1220 m above ground
- 0-6 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- -53 m²/s²
- 0-3 km storm-relative helicity
- -38 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KTUL 150034 FFWTUL OKC077-150330- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE TULSA OK 733 PM CDT WED APR 14 1999 THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A * FLASH FLOOD WARNING FOR LATIMER COUNTY IN SOUTHEAST OKLAHOMA * UNTIL 1030 PM CDT * AT 725 PM CDT STORM SPOTTERS REPORTED 1 FOOT OF WATER RUNNING OVER HIGHWAY 270 NEAR RED OAK. AT 730 PM CDT RADAR INDICATED THAT 2 TO 3 INCHES OF RAINFALL HAS FALLEN ACROSS MUCH OF LATIMER COUNTY. MODERATE TO HEAVY RAINFALL WILL CONTINUE THROUGH 830 PM ACROSS THIS AREA WITH ADDITIONAL AMOUNTS UP TO 1 INCH LIKELY. EVEN AS THE RAIN TAPERS OFF...RUNOFF WILL CONTINUE TO FILL SMALL STREAMS AND CREEKS LEADING TO FLOODING OF LOW WATER CROSSINGS AND POOR DRAINAGE ARES. RED OAK...DAMON...PANOLA...WILBURTON AND ADJACENT COMMUNITIES MAY BE AFFECTED BY FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROADWAY. THE WATER MAY BE TOO DEEP TO ALLOW YOUR CAR TO CROSS SAFELY. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY. MOVE TO HIGHER GROUND. 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. LAT...LON 3492 9539 3481 9532 3503 9494 3507 9509
What forecasters said that day
The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Tulsa, OK wrote its last area forecast discussion before this flash flood warning went out at Apr 14, 3:58 PM CDT, 3 hours 35 minutes earlier.
Area forecast discussion, Apr 14, 3:58 PM CDT, 3 hours 35 minutes before
EASTERN OKLAHOMA/NORTHWEST ARKANSAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE TULSA OK 358 PM CDT WED APR 14 1999 PROBLEM(S) OF THE DAY: STRONG WINDS (GUSTS > 35 MPH) WILL THE CONVECTION BE SCATTERED OR NUMEROUS? TEMPERATURES NOT MUCH TIME TO WRITE SO WILL KEEP IT SHORT AND SIMPLE. UPPER LOW VISIBLE IN VISIBLE...IR...AND WATOR VAPOR NEAR THE RED RIVER IN SOUTHWEST OKLAHOMA. THIS FEATURE TO TRACK EAST ACROSS FORECAST AREA THIS EVENING AND THEN ITS VORTICITY MAXIMUM TRACKS NORTHEAST TO SOUTHERN ILLINOIS BY 12Z THURSDAY. HOWEVER...FLY IN OINTMENT IS THAT AN UPPER LOW CONSOLIDATES BETWEEN NORTHERN AND SOUTHERN STREAM SEGMENTS OF THE JET OVER THE CENTRAL U.S. THURSDAY. THUS...MAY NOT GET OF THE CLOUDS AND RAIN AS QUICKLY AS MIGHT EXPECT. WILL CARRY RAIN INTO TOMORROW MORNING USING BEST MEAN RH'S AS GUIDANCE. WILL CARRY CLOUDS THROUGH THE DAY TOMORROW BEFORE BREAKING THEM OUT FOR TOMORROW NIGHT. BIG STORY WILL BE THE WIND THOUGH. SURFACE LOW REALLY CRANKS UP AS IT TRACKS NORTHEAST FROM CENTRAL OKLAHOMA. GIVEN GRADIENT SHOULD EASILY MEET WIND ADVISORY CRITERIA OF 20 TO 30 MPH AND GUSTY. LATER SHIFTS MAY HAVE TO UPDATE FOR TIMING AND TO MAKE THEM EVEN STRONGER. TEMPERATURES ALSO A PROBLEM. WIND AND CLOUDS SHOULD KEEP TEMPS FROM DROPPING TOO MUCH TONIGHT AND FROM RISING TOO MUCH TOMORROW. TOMORROW NIGHT WILL BE VERY INTERESTING. IF CLOUDS BREAK UP AS EXPECTED AND WIND WOULD DIE DOWN COULD HAVE A HARD FREEZE. WILL PLAY IT THAT THE WIND WILL STAY UP ENOUGH TO JUST BARELY KEEP THAT FROM HAPPENING. FCSTID = 17 TUL 44 50 35 55 / 60 30 0 0 FSM 46 53 36 55 / 60 30 0 0 MLC 46 53 36 57 / 70 20 0 0 BVO 42 48 33 53 / 60 30 0 0 FYV 44 50 32 50 / 60 30 0 0 IDB 48 57 37 60 / 60 0 0 10 BYV 44 50 32 50 / 60 30 0 0 MIO 43 50 33 52 / 60 30 0 0 MKO 44 50 35 55 / 60 30 0 0 F10 44 50 35 55 / 60 30 0 0 HHW 48 57 37 60 / 60 0 0 10 .TUL... OK...WIND ADVISORY FOR WEDNESDAY NIGHT AND THURSDAY FOR ZONES OKZ049...OKZ053>077. AR...WIND ADVISORY FOR WEDNESDAY NIGHT AND THURSDAY FOR ZONES ARZ001>002...ARZ010>011...ARZ019>020...ARZ029. ABBAS -------------------- EXPERIMENTAL OUTPUT: HAZARDOUS WEATHER EXPECTED NEXT 24 HOURS: SLIGHT CHANCE NONE NGM CONFIDENCE: 7 ON A SCALE OF 0 TO 10 ETA CONFIDENCE: 8 ON A SCALE OF 0 TO 10 AVN CONFI4DENCE: 7 ON A SCALE OF 0 TO 10 FCST CONFIDENCE: 9 ON A SCALE OF 0 TO 10
In the hours before
Local storm report, Apr 14, 7:30 PM CDT, 3 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
730 PM CDT WED APR 14 1999
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0720 PM 8 NE RED OAK OK 1 INCH HAIL
04/14/99 LATIMERLocal storm report, Apr 14, 7:30 PM CDT, 3 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
730 PM CDT WED APR 14 1999
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0720 PM 8 NE RED OAK OK 1 INCH HAIL
04/14/99 LATIMERNearby
Flash Flood Warnings in Oklahoma, 1999Every flash flood warning in 1999
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.