Alert archive / Arkansas / Flash Flood Warnings in 1999

Flash Flood Warning 2, NWS Tulsa, OK

February 6, 1999Benton County, Arkansas

NWS Tulsa, OK issued this flash flood warning at Feb 6, 1999, 8:18 PM CST for Benton County, Arkansas. It was in force for 87 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Feb 6, 1999, 8:18 PM CST (02:18 UTC)
Expired
Feb 6, 1999, 9:45 PM CST
In force
87 min
Issued by
NWS Tulsa, OK
Area
Whole counties

County Benton County, AR

The radar

The Western Arkansas radar (KSRX), 117 km from the middle of the area, began a volume at 02:22 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, 2.3 hours before the alert went out and 74 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 1999-02-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 19 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Springfield, MO at 00:00Z on 1999-02-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 8 square meters per square second.1939587897Sfc1 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
19 J/kg
Mixed-layer CIN
-2 J/kg
Mixed-layer LCL
498 m above ground
0-6 km bulk shear
64 kt
0-1 km storm-relative helicity
8 m²/s²
0-3 km storm-relative helicity
206 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KTUL 070220
FFWTUL
ARC007-070345-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TULSA OK
818 PM CST SAT FEB 6 1999

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* FLASH FLOOD WARNING FOR
  BENTON COUNTY IN NORTHWEST ARKANSAS

* UNTIL 945 PM CST

* AT 818 PM CST FLOODING WAS REPORTED ALONG ARKANSAS STATE HIGHWAY   
  264 WHICH RUNS TO THE NEW REGIONAL AIRPORT.  AN AREA OF MODERATE   
  TO HEAVY RAIN WILL PERSIST OVER BENTON COUNTY THROUGH 930 PM. 

HIWASSE...DECATUR...CAVE SPRINGS...HIGHFILL...SPRINGTOWN...PEA
RIDGE...GRAVETTE...GENTRY...LOWELL...ROGERS AND BENTONVILLE AND
ADJACENT COMMUNITIES MAY BE AFFECTED BY FLASH FLOODING.

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 3616 94h51 3627 9404 3645 9393 3646 9451

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 Feb 6, 3:15 PM CST, 5 hours 3 minutes earlier.

Area forecast discussion, Feb 6, 3:15 PM CST, 5 hours 3 minutes before
EASTERN OKLAHOMA/NORTHWEST ARKANSAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TULSA OK
315 PM CST SAT FEB 6 1999

PROBLEM(S) OF THE DAY:
WILL THERE BE SEVERE CONVECTION?
WHAT TYPE(S) OF SEVERE WEATHER WILL OCCUR?

POTENT SHORT WAVE MOVING ACROSS NM THIS AFTERNOON TOWARD WEST TX WILL
MOVE ON RATHER QUICKLY ACROSS THE AREA OVER THE NEXT 12-18 HRS.
DEVELOPING SURFACE LOW WAS LOCATED NEAR SPS ALONG THE RED RIVER AT
21Z WITH SURFACE BOUNDARY ORIENTED SW-NE STRETCHING ACROSS THE AREA.
LATEST RUC DOING A FAIRLY GOOD JOB WITH THE DEVELOPING LOW AND MOVES
THE LOW ACROSS THE STATE...TO NEAR SEMINOLE AT 00Z...NEAR MIAMI AT
03Z...THEN ON INTO SOUTHWEST MO BY MIDNIGHT.  SEVERE THUNDERSTORM
WATCH JUST ISSUED TILL 9 PM THIS EVENING FOR AREAS ROUGHLY ALONG AND
SOUTH OF I-44.

MODELS IN FAIRLY GOOD AGREEMENT IN MOVING UPPER SYSTEM ACROSS WEST TX
AND INTO EASTERN OK BY MIDNIGHT...THEN ON TO THE EAST AND NORTHEAST
OF THE AREA BY 12Z.  WILL ALSO HAVE TO WATCH FOR THE POTENTIAL FOR
HEAVY RAIN THIS EVENING...BUT WILL NOT ISSUE FFA AT THIS TIME WITH
STORMS EXPECTED TO REMAIN ON THE MOVE.  SOME POTENTIAL FOR TRAINING
ALONG SW-NE SURFACE BOUNDARY IF IT REMAINS ORIENTED AS IT IS TOO
LONG...SO WILL NEED TO WATCH FOR THIS CLOSELY.

PRECIP IS EXPECTED TO CUT OFF QUICKLY AND MOVE TO THE EAST AND
NORTHEAST OF THE AREA BY MORNING.  SHOULD BE A PLEASANT DAY ON SUNDAY
WITH GOOD SUBSIDENCE BEHIND SYSTEM WITH NICE WEATHER EXTENDING INTO
MONDAY AND TUESDAY.  TEMPS WELL ABOVE NORMAL.

NEXT CHANCE OF RAIN STILL LOOKS TO BE WEDNESDAY INTO EARLY THURSDAY.

FCSTID = 4
TUL   46  62  44  70 /  90  10   0   0
FSM   47  63  39  70 /  90  10   0   0
MLC   47  64  42  70 /  90  10   0   0
BVO   42  62  40  70 /  80  10   0   0
FYV   48  60  38  67 /  90  10   0   0
IDB   50  65  39  72 /  90  10   0   0
BYV   47  60  37  67 /  90  10   0   0
MIO   45  61  40  68 /  90  10   0   0
MKO   46  62  44  70 /  90  10   0   0
F10   46  62  43  70 /  90  10   0   0
HHW   50  65  40  72 /  90  10   0   0

.TUL...
OK...NONE.
AR...NONE.

--------------------
EXPERIMENTAL OUTPUT:

HAZARDOUS WEATHER EXPECTED NEXT 24 HOURS: CHANCE SEVERE THUNDERSTORMS
NGM CONFIDENCE:  6 ON A SCALE OF 0 TO 10
ETA CONFIDENCE:  7 ON A SCALE OF 0 TO 10
AVN CONFIDENCE:  6 ON A SCALE OF 0 TO 10
FCST CONFIDENCE: 7 ON A SCALE OF 0 TO 10

In the hours before

Local storm report, Feb 6, 7:55 PM CST, 23 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
755 PM CST SAT FEB 06 1999

TIME(CST)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0710 PM    WILBURTON                 OK   WIND DAMAGE
02/06/99   LATIMER                        MANY POWER LINES REPORTED
                                          DOWN...SEVERAL TREES
                                          UPROOTED

0710 PM    5 S WILBURTON             OK   WIND DAMAGE
02/06/99   LATIMER                        SEVERAL HOUSES DAMAGED BY
                                          WIND
Local storm report, Feb 6, 8:05 PM CST, 13 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
805 PM CST SAT FEB 06 1999

TIME(CST)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0804 PM    4 E HACKETT               AR   60 MPH TSTM GUST
02/06/99   SEBASTIAN
Local storm report, Feb 6, 8:08 PM CST, 10 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
808 PM CST SAT FEB 06 1999

TIME(CST)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0805 PM    EXCELSIOR                 AR   65 MPH TSTM GUST
02/06/99   SEBASTIAN

0807 PM    2 E HUNTINGTON            AR   70 MPH TSTM GUST
02/06/99   SEBASTIAN
Local storm report, Feb 6, 8:08 PM CST, 10 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
808 PM CST SAT FEB 06 1999

TIME(CST)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0805 PM    EXCELSIOR                 AR   65 MPH TSTM GUST
02/06/99   SEBASTIAN

0807 PM    2 E HUNTINGTON            AR   70 MPH TSTM GUST
02/06/99   SEBASTIAN
Special weather statement, Feb 6, 8:10 PM CST, 8 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
810 PM CST SAT FEB 6 1999

OKZ072-074-075-070309-

SEVERE THUNDERSTORM WATCH NUMBER 42 IS NO LONGER IN EFFECT FOR THE
FOLLOWING COUNTIES IN

EASTERN OKLAHOMA.
         HASKELL             LATIMER             SEQUOYAH

OKZ049-053-076-070300-

SEVERE THUNDERSTORM WATCH NUMBER 42 REMAINS IN EFFECT UNTIL 900 PM
CST FOR THE FOLLOWING COUNTIES IN

EASTERN OKLAHOMA.
         CHOCTAW             LE FLORE            PUSHMATAHA
Local storm report, Feb 6, 8:12 PM CST, 6 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
812 PM CST SAT FEB 06 1999

TIME(CST)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0810 PM    GREENWOOD                 AR   70 MPH TSTM GUST
02/06/99   SEBASTIAN

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 6, 7:32 PM CSTSevere Thunderstorm WarningTSACrawford, Sebastian58 min
Feb 6, 8:07 PM CSTSevere Thunderstorm WarningTSAFranklin53 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.