Alert archive / Oklahoma / Flash Flood Warnings in 1999
Flash Flood Warning 71, NWS Tulsa, OK
NWS Tulsa, OK issued this flash flood warning at Jun 20, 1999, 10:45 AM CDT for Craig County, Nowata County, Rogers 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
- Jun 20, 1999, 10:45 AM CDT (15:45 UTC)
- Expired
- Jun 20, 1999, 12:45 PM CDT
- In force
- 2 hr
- Issued by
- NWS Tulsa, OK
- Area
- Whole counties
Counties Craig County, OK, Nowata County, OK, Rogers County, OK
The radar
The Tulsa radar (KINX), 53 km from the middle of the area, began a volume at 15:49 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, 3.8 hours before the alert went out and 152 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1290 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- 53 m²/s²
- 0-3 km storm-relative helicity
- 67 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 201550 FFWTUL OKC035-105-131-201745- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE TULSA OK 1045 AM CDT SUN JUN 20 1999 THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A * FLASH FLOOD WARNING FOR CRAIG COUNTY IN NORTHEAST OKLAHOMA NOWATA COUNTY IN NORTHEAST OKLAHOMA ROGERS COUNTY IN NORTHEAST OKLAHOMA * UNTIL 1245 PM CDT * AT 1045 AM CDT RADAR INDICATED AN AREA OF SLOW MOVING SHOWERS AND THUNDERSTORMS CONTINUING ACROSS THE WARNED AREA. THE HEAVIEST RAINS AT 1045 AM WERE LOCATED ACROSS NORTHERN ROGERS...SOUTHERN NOWATA... AND CENTRAL CRAIG COUNTIES. RAINFALL RATES OF 1 TO 2 INCHES AN HOUR WILL CAUSE FLASH FLOODING. NOWATA...CENTRALIA...TALALA...AND CHELSEA 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.
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 Jun 20, 4:00 AM CDT, 6 hours 45 minutes earlier.
Area forecast discussion, Jun 20, 4:00 AM CDT, 6 hours 45 minutes before
EASTERN OKLAHOMA/NORTHWEST ARKANSAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE TULSA OK 400 AM CDT SUN JUN 20 1999 PROBLEM(S) OF THE DAY: WILL THE CONVECTION BE SCATTERED OR NUMEROUS? HOW MUCH RAIN WILL FALL? CLOUDS TEMPERATURES H85 WAA PATTERN OVER ERN OK THIS MORNING HAS RESULTED IN ADDITIONAL SHRA/TSRA ACTIVITY. MODELS IN DECENT AGREEMENT WITH ONE ANOTHER...BUT ALL HAVE PERFORMED POORLY IN HANDLING PRECIP AND CLOUDS THE LAST FEW RUNS. 00Z ETA HANDLES CURRENT PRECIP BEST...BUT DONT HAVE ANY FEEL FOR ONE MODEL OR THE OTHER. ALL AGREE HOWEVER THAT WAA/ISENTROPIC LIFT SHUTS OFF BY THIS AFTERNOON. WILL CONFINE POPS OVER MOST ZONES TO MORNING AND GO AHEAD WITH HIGHEST POPS IN ERN ZONES. WONT USE ANY TEMPORAL WORDING ACROSS SE OK AND WC AR AS MORE SUN AND HIGHER INSTABILITIES MAY LEAD TO SOME TSRA THIS AFTERNOON. ATMOSPHERE LOOKS TO REMAIN WEAKLY CAPPED FOR MONDAY. NO REAL FOCUS FOR CONVECTIVE INITIATION BUT A FEW LATE AFT STORMS WILL BE POSSIBLE...ESP OVER SE OK AND NW AR. WILL GO AHEAD AND BROADBRUSH ALL ZONES WITH SLIGHT CHANCE POPS MON AND MON EVE. AS FOR TEMPERATURES...UNDERCUT GUIDANCE FOR FIRST PERIOD TO ACCOUNT FOR MORE CLOUD COVER. THINK SE OK AND WC AR WILL SEE MORE SUN SO DID NOT DEVIATE AS MUCH. LATER PERIODS LOOK FAIRLY RESONABLE SO WILL STICK FAIRLY CLOSE. IN THE EXTENDED...WEAKLY CAPPED ATMOSPHERE REMAINS IN PLACE THROUGH EXTENDED PERIOD. MODEL SOLUTIONS VARY TO SOME DEGREE WITH PLACEMENT ANS STRENGTH OF UPPER RIDGE. MODELS HAVE CONTINUED TO SUPPRESS RIDGE TO THE SW U.S. STILL NO REAL FOCUS FOR CONVECTION BUT A WEAKLY CAPPED ENVIRONMENT MAY LEAD TO SCT AFTERNOON TSRA WILL GO WITH SLIGHT CHANCE POPS. FCSTID = 23 TUL 81 68 87 69 / 40 10 20 20 FSM 82 67 88 67 / 70 20 20 20 MLC 84 67 88 67 / 30 20 20 20 BVO 81 65 87 67 / 40 10 20 20 FYV 79 63 85 66 / 70 10 20 20 IDB 87 65 89 66 / 20 20 20 20 BYV 79 63 85 66 / 70 10 20 20 MIO 80 65 86 66 / 70 10 20 20 MKO 81 68 87 69 / 40 10 20 20 F10 81 68 87 69 / 40 10 20 20 HHW 87 65 89 66 / 20 20 20 20 .TUL... AR...NONE. OK...NONE. -------------------- EXPERIMENTAL OUTPUT: HAZARDOUS WEATHER EXPECTED NEXT 24 HOURS: NONE NGM CONFIDENCE: 5 ON A SCALE OF 0 TO 10 ETA CONFIDENCE: 5 ON A SCALE OF 0 TO 10 AVN CONFIDENCE: 5 ON A SCALE OF 0 TO 10 FCST CONFIDENCE: 5 ON A SCALE OF 0 TO 10
In the hours before
Special weather statement, Jun 20, 6:00 AM CDT, 4 hours 45 minutes before
ARZ001-002-010-011-019-020-029-OKZ049-053>076-211100- EASTERN OKLAHOMA/NORTHWEST ARKANSAS HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE TULSA OK 600 AM CDT SUN JUN 20 1999 SLOW MOVING THUNDERSTORMS MAY PRODUCE ADDITIONAL HEAVY RAINS THIS MORNING OVER PARTS OF NORTHEAST OKLAHOMA. .SYNOPSIS... A WEAK SURFACE LOW WAS LOCATED IN SOUTHWEST OKLAHOMA EARLY THIS MORNING WITH A TROUGH OF LOW PRESSURE EXTENDING NORTHEAST OF THE LOW INTO EASTCENTRAL OKLAHOMA. AN UPPER LEVEL DISTURBANCE THAT WAS OVER SOUTHEAST KANSAS EARLY THIS MORNING WILL MOVE SOUTHEAST ACROSS THE AREA THIS MORNING. .DISCUSSION... ELEVATED THUNDERSTORMS THAT DEVELOPED NORTH OF THE SURFACE TROUGH EARLY THIS MORNING WILL CONTINUE TO SLOWLY MOVE EAST THIS MORNING. LIMITED INSTABILITY WILL KEEP THESE BELOW SEVERE LIMITS...BUT LOCALLY HEAVY RAINS WILL BE POSSIBLE ALONG WITH DANGEROUS LIGHTNING EAST OF A LINE FROM NOWATA TO MUSKOGEE. THE AREA OF STORMS IS EXPECTED TO GRADUALLY DIMINISH DURING THE MORNING AS IT DRIFTS INTO NORTHWEST ARKANSAS. AS THE UPPER LEVEL DISTURBANCE PASSES THIS MORNING THE THREAT FOR THUNDERSTORMS WILL DECREASE. THERE WILL BE A SLIGHT CHANCE FOR DEVELOPMENT THIS AFTERNOON IN SOUTHEAST OKLAHOMA WITH SUNSHINE EXPECTED TO WARM TEMPERATURES INTO THE 80S. LIMITED INSTABILITY AND WEAK WIND FIELDS WILL KEEP ANY STORMS THAT DEVELOP BELOW SEVERE LIMITS. .EMERGENCY MANAGEMENT AGENCY AND SPOTTER ACTIVATION... SPOTTER ACTIVATION IS NOT EXPECTED THROUGH TONIGHT.
Special weather statement, Jun 20, 6:00 AM CDT, 4 hours 45 minutes before
ARZ001-002-010-011-019-020-029-OKZ049-053>076-211100- EASTERN OKLAHOMA/NORTHWEST ARKANSAS HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE TULSA OK 600 AM CDT SUN JUN 20 1999 SLOW MOVING THUNDERSTORMS MAY PRODUCE ADDITIONAL HEAVY RAINS THIS MORNING OVER PARTS OF NORTHEAST OKLAHOMA. .SYNOPSIS... A WEAK SURFACE LOW WAS LOCATED IN SOUTHWEST OKLAHOMA EARLY THIS MORNING WITH A TROUGH OF LOW PRESSURE EXTENDING NORTHEAST OF THE LOW INTO EASTCENTRAL OKLAHOMA. AN UPPER LEVEL DISTURBANCE THAT WAS OVER SOUTHEAST KANSAS EARLY THIS MORNING WILL MOVE SOUTHEAST ACROSS THE AREA THIS MORNING. .DISCUSSION... ELEVATED THUNDERSTORMS THAT DEVELOPED NORTH OF THE SURFACE TROUGH EARLY THIS MORNING WILL CONTINUE TO SLOWLY MOVE EAST THIS MORNING. LIMITED INSTABILITY WILL KEEP THESE BELOW SEVERE LIMITS...BUT LOCALLY HEAVY RAINS WILL BE POSSIBLE ALONG WITH DANGEROUS LIGHTNING EAST OF A LINE FROM NOWATA TO MUSKOGEE. THE AREA OF STORMS IS EXPECTED TO GRADUALLY DIMINISH DURING THE MORNING AS IT DRIFTS INTO NORTHWEST ARKANSAS. AS THE UPPER LEVEL DISTURBANCE PASSES THIS MORNING THE THREAT FOR THUNDERSTORMS WILL DECREASE. THERE WILL BE A SLIGHT CHANCE FOR DEVELOPMENT THIS AFTERNOON IN SOUTHEAST OKLAHOMA WITH SUNSHINE EXPECTED TO WARM TEMPERATURES INTO THE 80S. LIMITED INSTABILITY AND WEAK WIND FIELDS WILL KEEP ANY STORMS THAT DEVELOP BELOW SEVERE LIMITS. .EMERGENCY MANAGEMENT AGENCY AND SPOTTER ACTIVATION... SPOTTER ACTIVATION IS NOT EXPECTED THROUGH TONIGHT.
Local storm report, Jun 20, 7:26 AM CDT, 3 hours 19 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
726 AM CDT SUN JUN 20 1999
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0445 AM 2 N TAHLEQUAH OK FLOOD
06/20/99 CHEROKEE FLOODING BETWEEN
HIGHWAYS 82 AND 10.
BLACKBIRD CREEK FLOODING.
0550 AM 6 N PRYOR OK FLOOD
06/20/99 MAYES COUNTY ROAD FLOODED
0655 AM ADAIR OK FLOOD
06/20/99 MAYES MAJOR FLOODING REPORTED
BY SHERIFF. CARS CAUGHT
IN FLOODED AREAS.
0705 AM 4 SE PEGGS OK FLOOD
06/20/99 CHEROKEE KILLIBREW ROAD NEAR
HIGHWAY 82 FLOODED WITH
2 FEET OF WATER FLOWING
OVER ROAD NEAR
BLACKBIRD CREEK.Local storm report, Jun 20, 7:26 AM CDT, 3 hours 19 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
726 AM CDT SUN JUN 20 1999
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0445 AM 2 N TAHLEQUAH OK FLOOD
06/20/99 CHEROKEE FLOODING BETWEEN
HIGHWAYS 82 AND 10.
BLACKBIRD CREEK FLOODING.
0550 AM 6 N PRYOR OK FLOOD
06/20/99 MAYES COUNTY ROAD FLOODED
0655 AM ADAIR OK FLOOD
06/20/99 MAYES MAJOR FLOODING REPORTED
BY SHERIFF. CARS CAUGHT
IN FLOODED AREAS.
0705 AM 4 SE PEGGS OK FLOOD
06/20/99 CHEROKEE KILLIBREW ROAD NEAR
HIGHWAY 82 FLOODED WITH
2 FEET OF WATER FLOWING
OVER ROAD NEAR
BLACKBIRD CREEK.Local storm report, Jun 20, 8:53 AM CDT, 1 hour 52 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
853 AM CDT SUN JUN 20 1999
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0835 AM 2 E FOYIL OK FLOOD
06/20/99 ROGERS HIGHWAY 28 FLOODED EAST
OF FOYIL
0840 AM 2 N ADAIR OK FLOOD
06/20/99 MAYES HIGHWAY 69 CLOSED BY
FLOODING.The office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 20, 4:15 AM CDT | Flash Flood Warning | TSA | Cherokee | 3 hr |
| Jun 20, 5:40 AM CDT | Flash Flood Warning | TSA | Mayes | 3 hr |
| Jun 20, 6:49 AM CDT | Flash Flood Warning | TSA | Cherokee | 2 hr |
| Jun 20, 7:50 AM CDT | Flash Flood Warning | TSA | Rogers | 3 hr |
| Jun 20, 7:58 AM CDT | Flash Flood Warning | TSA | Craig | 3 hr |
| Jun 20, 8:21 AM CDT | Flash Flood Warning | TSA | Cherokee, Mayes | 2 hr |
Nearby
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; radar from the NEXRAD Level II archive.