Alert archive / Arkansas / Flash Flood Warnings in 1999
Flash Flood Warning 42, NWS Tulsa, OK
NWS Tulsa, OK issued this flash flood warning at May 4, 1999, 5:04 PM CDT for Benton County, Arkansas. It was in force for 86 min. 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
- May 4, 1999, 5:04 PM CDT (22:04 UTC)
- Expired
- May 4, 1999, 6:30 PM CDT
- In force
- 86 min
- Issued by
- NWS Tulsa, OK
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Benton County, AR
The radar
The Springfield radar (KSGF), 116 km from the middle of the area, began a volume at 22:08 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, 10.1 hours before the alert went out and 65 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
- 145 J/kg
- Mixed-layer CIN
- -410 J/kg
- Mixed-layer LCL
- 1235 m above ground
- 0-6 km bulk shear
- 42 kt
- 0-1 km storm-relative helicity
- 7 m²/s²
- 0-3 km storm-relative helicity
- 33 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 042209 FFWTUL ARC007-042330- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE TULSA OK 504 PM CDT TUE MAY 4 1999 THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A * FLASH FLOOD WARNING FOR BENTON COUNTY IN NORTHWEST ARKANSAS * UNTIL 630 PM CDT * AT 504 PM CDT LAW ENFORCEMENT OFFICIALS REPORTED FLASH FLOODING OCCURRING ACROSS MUCH OF BENTON COUNTY. RECENT HEAVY RAINS WILL CONTINUE TO RUN OFF INTO CREEKS AND STREAMS DURING THE LATE AFTERNOON HOURS. ADDITIONAL RAINFALL IS NOT EXPECTED THROUGH THIS EVENING AND THE FLOODING SHOULD SUBSIDE AROUND 630 PM CDT. GARFIELD...BELLA VISTA...HIWASSE...CAVE SPRINGS...GATEWAY...PEA RIDGE...LOWELL...ROGERS AND BENTONVILLE AND ADJACENT COMMUNITIES MAY BE AFFECTED BY FLASH FLOODING. LAT...LON 3650 9440 3622 9432 3628 9386 3650 9389
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 May 4, 11:20 AM CDT, 5 hours 44 minutes earlier.
Area forecast discussion, May 4, 11:20 AM CDT, 5 hours 44 minutes before
EASTERN OKLAHOMA/NORTHWEST ARKANSAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE TULSA OK 1120 AM CDT TUE MAY 4 1999 RUNNING WAY BEHIND THIS MORNING. HAVE ISSUED UPDATED ZONES TWICE... ONCE TO UP POPS TO CATEGORICAL NORTH AND LIKELY SOUTH AND ISSUE FLASH FLOOD WATCH FOR ALL ZONES...AND SECOND TO HEADLINE THE NEW TORNADO WATCH UNTIL 4PM FOR THE ENTIRE AREA. IT LOOKS LIKE THE BEST TORNADIC THREAT WILL BE IN THE SOUTHERN HALF OF THE AREA WHERE ATMOSPHERE IS LESS WORKED OVER...WITH HEAVY RAIN AND FLASH FLOODING THE BIGGEST THREAT IN THE NORTH. SEVERE HAIL LOOKS TO BE A POSSIBILITY JUST ABOUT EVERYWHERE. DID NOT TOUCH SECOND PERIOD AS TIMING OF DRYLINE STILL NOT CERTAIN. MAY PROLONG SEVERE...HEAVY RAIN THREAT INTO THE EVENING ESPECIALLY IN EASTERN ZONES WITH FUTURE UPDATES IF NEEDED. FCSTID = 19 .TUL... AR...FLASH FLOOD WATCH FOR TODAY ALL ZONES. OK...FLASH FLOOD WATCH FOR TODAY ALL ZONES.
In the hours before
Special weather statement, May 4, 1:00 PM CDT, 4 hours 4 minutes before
ARZ001-002-010-011-019-020-029-OKZ049-053>076-051100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TULSA OK 100 PM CDT TUE MAY 4 1999 ...A TORNADO WATCH IN EFFECT ACROSS EASTERN OKLAHOMAAND NORTHWEST ARKANSAS UNTIL 4 PM... ...A FLASH FLOOD WATCH IN EFFECT ACROSS EASTERN OKLAHOMA AND NORTHWEST ARKANSAS UNTIL 600 PM... NUMEROUS SEVERE THUNDERSTORMS ARE EXPECTED ACROSS PARTS OF EASTERN OKLAHOMA THIS AFTERNOON AND TONIGHT. THE PRIMARY THREAT AREA WILL SHIFT TO FAR EASTERN OKLAHOMA AND NORTHWEST ARKANSAS LATE THIS AFTERNOON AND EVENING. .SYNOPSIS... AN UPPER LEVEL TROUGH OF LOW PRESSURE CURRENTLY SITUATED OVER COLORADO AND NEW MEXICO WILL DEEPEN AND LIFT NORTHEAST INTO KANSAS BY THIS EVENING. AN UPPER LEVEL JET STREAK ASSOCIATED WITH THE LOW WAS CURRENTLY OVER EAST CENTRAL OKLAHOMA. AT THE SURFACE...A DRYLINE MOVING INTO CENTRAL OKLAHOMA IS EXPECTED TO CONTINUE MOVING EAST THIS AFTERNOON AND TONIGHT. .DISCUSSION... THE UPPER LEVEL JET STREAK CURRENTLY ROTATING AROUND THE LOW WILL CONTINUE TO ACT AS SOURCE OF LIFT FOR THE FORMATION OF THUNDERSTORMS ACROSS EASTERN OKLAHOMA AND WESTERN ARKANSAS THIS AFTERNOON. AS A RESULT OF THE POSITIONING OF THIS FEATURE...NUMEROUS SEVERE STORMS WILL BE EXPECTED. VERTICAL WIND PROFILES AND THE DEGREE OF INSTABILITY WILL RESULT IN THE POSSSIBILITY OF TORNADIC SUPERCELLS WITH THE POTENTIAL FOR A FEW STRONG TORNADOES. IN ADDITION...THE PROLONGED THREAT OF THUNDERSTORMS WILL PRODUCE LOCALLY HEAVY RAINFALL ACROSS MUCH OF EASTERN OKLAHOMA AND NORTHWEST ARKANSAS THIS AFTERNOON AND TONIGHT...INCREASING THE THREAT OF FLASH FLOODING. THE PROGRESSION OF THE UPPER LEVEL LOW AND SURFACE DRYLINE WILL SERVE AS THE FOCUS FOR A FEW SEVERE STORMS THIS AFTERNOON AND EVENING ACROSS EASTERN OKLAHOMA AND NORTHWEST ARKANSAS. THE SEVERE WEATHER THREAT WILL SHIFT TO FAR EASTERN OKLAHOMA AND NORTHWEST ARKANSAS BY THIS EVENING. THE DRYLINE WILL BE EAST OF NORTHWEST ARKANSAS BY MORNING THUS ENDING THE SEVERE THREAT OVER ALL OF EASTERN OKLAHOMA AND NORTHWEST ARKANSAS. .EMERGENCY MANAGEMENT AGENCY AND SPOTTER ACTIVATION... SPOTTER GROUPS ACROSS ALL OF EASTERN OKLAHOMA AND NORTHWEST ARKANSAS SHOULD KEEP INFORMED OF THE LATEST WEATHER CONDITIONS. SPOTTER GROUPS NOT ALREADY ACTIVATED SHOULD PREPARE FOR ACTIVATION AT ANYTIME THIS AFTERNOON ACROSS EASTERN OKLAHOMA AND NORTHWEST ARKANSAS.
Local storm report, May 4, 2:22 PM CDT, 2 hours 42 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
222 PM CDT TUE MAY 04 1999
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0135 PM 8 S PRAIRIE GROVE AR WIND DAMAGE
05/04/99 WASHINGTON HOUSE DESTROYED AND
NUMEROUS TREES DOWN.
0205 PM SPRINGDALE AR 1 INCH HAIL
05/04/99 WASHINGTONLocal storm report, May 4, 2:22 PM CDT, 2 hours 42 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
222 PM CDT TUE MAY 04 1999
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0135 PM 8 S PRAIRIE GROVE AR WIND DAMAGE
05/04/99 WASHINGTON HOUSE DESTROYED AND
NUMEROUS TREES DOWN.
0205 PM SPRINGDALE AR 1 INCH HAIL
05/04/99 WASHINGTONSpecial weather statement, May 4, 3:00 PM CDT, 2 hours 4 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TULSA OK 300 PM CDT TUE MAY 4 1999 OKZ054>068-070-071-073-042015- TORNADO WATCH 208 IS NO LONGER IN EFFECT FOR THE THE FOLLOWING COUNTIES IN EASTERN OKLAHOMA... CHEROKEE CREEK CRAIG DELAWARE MAYES MCINTOSH MUSKOGEE NOWATA OKFUSKEE OKMULGEE OSAGE OTTAWA PAWNEE PITTSBURG ROGERS TULSA WAGONER WASHINGTON
Special weather statement, May 4, 3:00 PM CDT, 2 hours 4 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TULSA OK 300 PM CDT TUE MAY 4 1999 OKZ054>068-070-071-073-042015- TORNADO WATCH 208 IS NO LONGER IN EFFECT FOR THE THE FOLLOWING COUNTIES IN EASTERN OKLAHOMA... CHEROKEE CREEK CRAIG DELAWARE MAYES MCINTOSH MUSKOGEE NOWATA OKFUSKEE OKMULGEE OSAGE OTTAWA PAWNEE PITTSBURG ROGERS TULSA WAGONER WASHINGTON ARZ001-002-010-011-019-020-029-OKZ049-053-069-072-074>076-042015- TORNADO WATCH 210 REMAINS IN EFFECT UNTIL 900 PM CDT FOR THE FOLLOWING COUNTIES IN EASTERN OKLAHOMA... ADAIR CHOCTAW HASKELL LATIMER LE FLORE MCCURTAIN PUSHMATAHA SEQUOYAH NORTHWESTERN ARKANSAS... BENTON CARROLL CRAWFORD FRANKLIN MADISON SEBASTIAN WASHINGTON
Special weather statement, May 4, 3:54 PM CDT, 1 hour 10 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TULSA OK 354 PM CDT TUE MAY 4 1999 OKZ049-053-069-072-074-075-042130 TORNADO WATCH 210 IS NO LONGER IN EFFECT FOR THE THE FOLLOWING COUNTIES IN EASTERN OKLAHOMA... ADAIR CHOCTAW HASKELL LATIMER PUSHMATAHA SEQUOYAH ARZ001-002-010-011-019-020-029-OKZ076-042130- TORNADO WATCH 210 REMAINS IN EFFECT UNTIL 900 PM CDT FOR THE FOLLOWING COUNTIES IN EASTERN OKLAHOMA... LE FLORE MCCURTAIN NORTHWESTERN ARKANSAS... BENTON CARROLL CRAWFORD FRANKLIN MADISON SEBASTIAN WASHINGTON
The office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 4, 2:46 AM CDT | Tornado Warning | TSA | Benton | 44 min |
| May 4, 8:37 AM CDT | Severe Thunderstorm Warning | TSA | Sebastian | 68 min |
| May 4, 9:36 AM CDT | Severe Thunderstorm Warning | TSA | Franklin | 39 min |
| May 4, 9:56 AM CDT | Severe Thunderstorm Warning | TSA | Carroll, Madison | 34 min |
| May 4, 12:59 PM CDT | Tornado Warning | TSA | Crawford, Washington | 46 min |
| May 4, 1:34 PM CDT | Tornado Warning | TSA | Washington | 41 min |
| May 4, 1:54 PM CDT | Tornado Warning | TSA | Benton | 51 min |
| May 4, 2:39 PM CDT | Severe Thunderstorm Warning | TSA | Crawford | 51 min |
| May 4, 2:45 PM CDT | Severe Thunderstorm Warning | TSA | Benton, Washington | 45 min |
| May 4, 3:08 PM CDT | Severe Thunderstorm Warning | TSA | Sebastian | 52 min |
| May 4, 3:23 PM CDT | Severe Thunderstorm Warning | TSA | Crawford | 37 min |
| May 4, 3:28 PM CDT | Severe Thunderstorm Warning | TSA | Franklin | 47 min |
| May 4, 3:58 PM CDT | Severe Thunderstorm Warning | TSA | Madison | 47 min |
Nearby
Flash Flood Warnings in Arkansas, 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.