Alert archive / Arkansas / Flash Flood Warnings in 2000

Flash Flood Warning 30, NWS Tulsa, OK

August 23, 2000Madison County, Arkansas

NWS Tulsa, OK issued this flash flood warning at Aug 23, 2000, 6:55 PM CDT for Madison County, Arkansas. 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 outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties.

The facts

Issued
Aug 23, 2000, 6:55 PM CDT (23:55 UTC)
Expired
Aug 23, 2000, 9:00 PM CDT
In force
2 hr
Issued by
NWS Tulsa, OK
Area
Whole counties; the outline is the Mesonet’s reconstruction

County Madison County, AR

The nearest sounding before it

Springfield, MO (KSGF), launched 12:00Z, 11.9 hours before the alert went out and 92 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 12:00Z on 2000-08-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 233 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 12:00Z on 2000-08-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 31 square meters per square second.1939Sfc1 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
233 J/kg
Mixed-layer CIN
-222 J/kg
Mixed-layer LCL
2079 m above ground
0-6 km bulk shear
7 kt
0-1 km storm-relative helicity
31 m²/s²
0-3 km storm-relative helicity
84 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 
WGUS54 KTSA 232358
FFWTSA
ARC087-240200-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TULSA OK
655 PM CDT WED AUG 23 2000

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* FLASH FLOOD WARNING FOR
  CENTRAL MADISON COUNTY IN NORTHWEST ARKANSAS

* UNTIL 900 PM CDT

* AT 655 PM CDT DOPPLER RADAR INDICATED AN AREA OF VERY HEAVY RAIN
  OVER HUNTSVILLE. THE STORM WAS NEARLY STATIONARY.

  RADAR ESTIMATES INDICATE THAT NEARLY 2 INCHES OF RAIN HAS
  ALREADY FALLEN OVER THE WARNED AREA. ANOTHER 1 TO 2 INCHES WILL
  BE POSSIBLE THROUGH 900 PM CDT.

* SOME LOCATIONS THAT WILL CONTINUE TO BE AFFECTED BY THE HEAVY RAIN
  INCLUDE FORUM...HINDSVILLE AND HUNTSVILLE.

EXCESSIVE RUNOFF WILL CAUSE FLASH FLOODING OF SMALL CREEKS AND
STREAMS...URBAN AREAS...HIGHWAYS...STREETS AND UNDERPASSES AS WELL AS
OTHER DRAINAGE AREAS AND LOW LYING SPOTS.

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER CPOVERS 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.

LAT...LON 3600 9388 3600 9365 3618 9365 3618 9388

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 Aug 23, 2:45 PM CDT, 4 hours 10 minutes earlier.

Area forecast discussion, Aug 23, 2:45 PM CDT, 4 hours 10 minutes before
EASTERN OKLAHOMA/NORTHWEST ARKANSAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TULSA OK
245 PM CDT WED AUG 23 2000

TERRAIN INDUCED SHOWERS AND THUNDERSTORMS HAVE DEVELOPED OVER
SECTIONS OF NORTHWEST ARKANSAS THIS AFTERNOON. EXPECT WIDELY SCT
ACTIVITY TO CONTINUE THROUGH THE AFTERNOON HOURS...DEVELOPING INTO
SECTIONS OF SOUTHEAST OK...IN THE HIGHER TERRAIN.  CONVECTION WILL
QUICKLY DISSIPATE THIS EVENING WITH THE LOSS OF DAYTIME HEATING.
WILL CONTINUE WITH PERSISTENCE THROUGH FORECAST PERIOD...WITH LITTLE
CHANGE IN OVERALL SYNOPTIC PATTERN.

UPPER HIGH CURRENTLY LOCATED OVER ARK WILL REDEVELOP/SHIFT NW INTO
CO FRI MORNING.  WILL CONTINUE TO SEE A SLIGHT CHANCE FOR AFTERNOON
THUNDERSTORMS THU OVER WEST-CENTRAL ARK/SE OK...PRIMARILY IN THE
HIGHER ELEVATIONS.  MESO ETA SLOWLY DECREASES LOW LEVEL MOISTURE BY
FRI AND SHOULD SEE EVEN LESS PRECIP COVERAGE DURING THE DAY. AFTERNOON
HIGH TEMPS WILL REMAIN CLOSE TO TODAYS READINGS GIVE OR TAKE A
DEGREE.

EXTENDED PERIODS...HOT/DRY FORECAST CONTINUES THROUGH THE WEEKEND AS
UPPER HIGH MOVES BACK INTO THE AREA.

PRELIM NUMBERS:

FCSTID = 12
TUL   78 101  78 100 /   5   5   5   5
FSM   76 103  76 102 /  10  20  10  10
MLC   76 101  76 100 /  10  20  10  10
BVO   76 103  76 102 /   5   5   5   5
FYV   69  98  69  97 /  10  20  10  10
BYV   69  98  69  97 /  10  20  10  10
MIO   73  99  73  98 /   5   5   5  10
MKO   76 101  76 100 /   5  10   5  10
F10   76 101  76 100 /   5  10   5  10
HHW   73 101  73 100 /  10  20  10  10

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

In the hours before

Special weather statement, Aug 23, 1:20 PM CDT, 5 hours 35 minutes before
ARZ001-002-010-011-019-020-029-OKZ049-053>076-241100-

EASTERN OKLAHOMA AND NORTHWEST ARKANSAS HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE TULSA OK
120 PM CDT WED AUG 23 2000

...ISOLATED THUNDERSTORMS ARE POSSIBLE THIS AFTERNOON AND EARLY THIS
EVENING IN NORTHWEST ARKANSAS AND SOUTHEAST OKLAHOMA...

ISOLATED THUNDERSTORMS WILL BE POSSIBLE ONCE AGAIN THIS AFTERNOON
AND EARLY EVENING ACROSS THE HIGHER TERRAIN OF SOUTHEAST OKLAHOMA
AND NORTHWEST ARKANSAS.  SOME THUNDERSTORMS MAY PRODUCE BRIEF STRONG
GUSTY WINDS AND LOCALLY HEAVY DOWNPOURS.  OCCASIONAL CLOUD TO GROUND
LIGHTNING WILL ALSO BE POSSIBLE.

.OTHER HAZARDS...
AN OZONE ALERT HAS BEEN POSTED FOR THE TULSA METROPOLITAN AREA FOR
TODAY AND AGAIN ON THURSDAY.  SEE THE PUBLIC INFORMATION STATEMENT
/OKCPNSTUL/ FOR MORE INFORMATION.

.SPOTTER ACTIVATION...
SPOTTER ACTIVATION IS NOT ANTICIPATED THROUGH TONIGHT.

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 23, 6:22 PM CDTSevere Thunderstorm WarningTSAMadison38 min

Nearby

Flash Flood Warnings in Arkansas, 2000Every flash flood warning in 2000

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.