Alert archive / Arkansas / Flash Flood Warnings in 2009

Flash Flood Warning 184, NWS Memphis, TN

September 16, 2009Phillips County, Arkansas

NWS Memphis, TN issued this flash flood warning at Sep 16, 2009, 8:08 PM CDT for Phillips 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 counties it named.

The facts

Issued
Sep 16, 2009, 8:08 PM CDT (01:08 UTC)
Expired
Sep 16, 2009, 10:24 PM CDT
In force
2 hr
Issued by
NWS Memphis, TN
Area
Storm-based polygon
Flood severity
None

County Phillips County, AR

The radar

The Memphis radar (KNQA), 135 km from the middle of the area, began a volume at 01:07 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

Little Rock, AR (KLZK), launched 00:00Z, 1.1 hours before the alert went out and 94 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, Little Rock, AR at 00:00Z on 2009-09-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1153 joules per kilogram.LCLEL10008507005003002001001 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, Little Rock, AR at 00:00Z on 2009-09-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 119 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
1153 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
463 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
119 m²/s²
0-3 km storm-relative helicity
146 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

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 Memphis, TN wrote its last area forecast discussion before this flash flood warning went out at Sep 16, 7:30 PM CDT, 38 minutes earlier.

Area forecast discussion, Sep 16, 7:30 PM CDT, 38 minutes before
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Hazardous weather outlook, Sep 16, 3:30 PM CDT, 4 hours 38 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE MEMPHIS TN
330 PM CDT WED SEP 16 2009

ARZ008-009-017-018-026>028-035-036-048-049-058-MOZ113-115-
MSZ001>017-020>024-TNZ001>004-019>021-048>055-088>092-171030-
ALCORN-BENTON MS-CALHOUN-CARROLL-CHESTER-CHICKASAW-CLAY-COAHOMA-
CRAIGHEAD-CRITTENDEN-CROCKETT-CROSS-DESOTO-DECATUR-DUNKLIN-DYER-
FAYETTE-GIBSON-GREENE-HARDEMAN-HARDIN-HAYWOOD-HENDERSON-HENRY-
ITAWAMBA-LAFAYETTE-LAKE-LAUDERDALE-LAWRENCE-LEE AR-LEE MS-MADISON-
MARSHALL-MCNAIRY-MISSISSIPPI-MONROE-OBION-PANOLA-PEMISCOT-
PHILLIPS-POINSETT-PONTOTOC-PRENTISS-QUITMAN-RANDOLPH-SHELBY-
ST. FRANCIS-TALLAHATCHIE-TATE-TIPPAH-TIPTON-TISHOMINGO-TUNICA-
UNION-WEAKLEY-YALOBUSHA-
330 PM CDT WED SEP 16 2009

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF EAST ARKANSAS...
THE MISSOURI BOOTHEEL...NORTH MISSISSIPPI...AND WEST TENNESSEE.

.DAY ONE...TONIGHT

A FLASH FLOOD WATCH HAS BEEN ISSUED FOR THE MIDSOUTH. NUMEROUS
SHOWERS AND THUNDERSTORMS WILL REPEATEDLY MOVE OVER THE WATCH AREA
WITH VERY HEAVY RAINFALL RATES. SEVERAL INCHES OF RAIN WILL BE
POSSIBLE OVER THESE AREAS WHICH MAY LEAD TO FLASH FLOODING.

SOME STRONGER THUNDERSTORMS MAY CONTAIN BRIEF GUSTY WINDS TODAY
AND TONIGHT.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

A THREAT FOR HEAVY RAINFALL WITH THE POTENTIAL FOR FLASH FLOODING
WILL CONTINUE OVER THE MIDSOUTH THROUGH THE END OF THE WEEK. A FLASH
FLOOD WATCH HAS BEEN EXTENDED THROUGH THURSDAY EVENING FOR THE
MIDSOUTH. PLEASE CONTINUE TO MONITOR THE LATEST FORECASTS FOR
ADDITIONAL INFORMATION CONCERNING THE THREAT FOR FLASH FLOODING.

.SPOTTER INFORMATION STATEMENT...

STORM SPOTTERS...EMERGENCY MANAGEMENT...AND LAW ENFORCEMENT
OFFICIALS ARE ENCOURAGED TO REPORT ANY FLOODING THIS WEEK TO THE
NATIONAL WEATHER SERVICE FORECAST OFFICE IN MEMPHIS.

 BELLES

In the hours before

Local storm report, Sep 16, 3:59 PM CDT, 4 hours 9 minutes before
PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE MEMPHIS TN
359 PM CDT WED SEP 16 2009

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0420 AM     FLASH FLOOD      5 E DOWNTOWN MEMPHIS    35.13N 89.96W
09/16/2009                   SHELBY             TN   EMERGENCY MNGR

            SEVERAL STREETS WERE FLOODED IN THE MIDTOWN SECTION OF
            MEMPHIS.

0930 AM     FLASH FLOOD      MARMADUKE               36.19N 90.39W
09/16/2009                   GREENE             AR   LAW ENFORCEMENT

            MANY ROADS FLOODED IN MARMADUKE.

0945 AM     FLASH FLOOD      4 W WALDENBURG          35.56N 91.01W
09/16/2009                   POINSETT           AR   POST OFFICE

            EXCESSIVE WATER ON HIGHWAY 14 WEST OF WALDENBURG.

1240 PM     FLASH FLOOD      MARMADUKE               36.19N 90.39W
09/16/2009                   GREENE             AR   LAW ENFORCEMENT

            MANY ROADS FLOODED IN MARMADUKE.

0345 PM     FLASH FLOOD      3 W AUBREY              34.72N 90.95W
09/16/2009                   LEE                AR   POST OFFICE

            COUNTY HIGHWAY 157 IS FLOODED.

0346 PM     FLASH FLOOD      MERCER                  35.48N 89.03W
09/16/2009                   MADISON            TN   POST OFFICE

            EXCESSIVE WATER ON ROADWAYS IN MERCER FROM HEAVY
            RAINFALL.

&&

MBS
Local storm report, Sep 16, 6:11 PM CDT, 1 hour 57 minutes before
PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE MEMPHIS TN
611 PM CDT WED SEP 16 2009

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0930 AM     FLASH FLOOD      MARMADUKE               36.19N 90.39W
09/16/2009                   GREENE             AR   LAW ENFORCEMENT

            MANY ROADS FLOODED IN MARMADUKE.

0945 AM     FLASH FLOOD      4 W WALDENBURG          35.56N 91.01W
09/16/2009                   POINSETT           AR   POST OFFICE

            EXCESSIVE WATER ON HIGHWAY 14 WEST OF WALDENBURG.

1240 PM     FLASH FLOOD      MARMADUKE               36.19N 90.39W
09/16/2009                   GREENE             AR   LAW ENFORCEMENT

            MANY ROADS FLOODED IN MARMADUKE.

0345 PM     FLASH FLOOD      3 W AUBREY              34.72N 90.95W
09/16/2009                   LEE                AR   POST OFFICE

            COUNTY HIGHWAY 157 IS FLOODED.

0346 PM     FLASH FLOOD      MERCER                  35.48N 89.03W
09/16/2009                   MADISON            TN   POST OFFICE

            EXCESSIVE WATER ON ROADWAYS IN MERCER FROM HEAVY
            RAINFALL.

0605 PM     FLASH FLOOD      HORNSBY                 35.23N 88.83W
09/16/2009                   HARDEMAN           TN   TRAINED SPOTTER

            HIGHWAY 64 EAST IN HORNSBY BALLFIELD NEXT TO ROAD HAS
            STANDING WATER AT LEAST 1 FOOT DEEP

&&

MRM

The office that day

Everything else NWS Memphis, TN issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Sep 16, 7:08 PM CDTFlash Flood WarningMEGCoahoma, Panola, Quitman, Tallahatchie, Tunica, Yalobusha3 hr
Sep 16, 10:13 PM CDTAreal Flood AdvisoryMEGCalhoun, Lafayette, Lee, Pontotoc, Union, Yalobusha2 hr
Sep 17, 9:16 AM CDTFlash Flood WarningMEGPrentiss, Tippah, Union4 hr
Sep 17, 10:37 AM CDTFlash Flood WarningMEGAlcorn, Benton, Lafayette, Marshall, Prentiss, Tippah and 1 more3 hr
Sep 17, 1:04 PM CDTAreal Flood AdvisoryMEGTishomingo75 min
Sep 17, 1:29 PM CDTAreal Flood AdvisoryMEGCoahoma3 hr
Sep 17, 2:08 PM CDTAreal Flood AdvisoryMEGLafayette3 hr
Sep 17, 2:37 PM CDTFlash Flood WarningMEGCalhoun, Coahoma, Lafayette, Panola, Quitman, Tallahatchie and 1 more3 hr
Sep 17, 9:14 AM CDTFlash Flood WarningMEGHardin3 hr

Nearby

Flash Flood Warnings in Arkansas, 2009Every flash flood warning in 2009

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.