Alert archive / Mississippi / Flash Flood Warnings in 2003

Flash Flood Warning 113, NWS Jackson, MS

August 27, 2003Grenada County, Mississippi

NWS Jackson, MS issued this flash flood warning at Aug 27, 2003, 1:42 PM CDT for Grenada County, Mississippi. It was in force for 118 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Aug 27, 2003, 1:42 PM CDT (18:42 UTC)
Expired: Aug 27, 2003, 3:40 PM CDT
In force: 118 min
Issued by: NWS Jackson, MS
Area: Counties, with a storm outline in the text

County Grenada County, MS

The nearest sounding before it

Little Rock, AR (KLZK), launched 12:00Z, 6.7 hours before the alert went out and 118 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 574 J/kg
Mixed-layer CIN: -125 J/kg
Mixed-layer LCL: 1509 m above ground
0-6 km bulk shear: 14 kt
0-1 km storm-relative helicity: -13 m²/s²
0-3 km storm-relative helicity: -12 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 KJAN 271842
FFWJAN
MSC043-272040-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE JACKSON MS
142 PM CDT WED AUG 27 2003

THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  GRENADA COUNTY IN NORTH CENTRAL MISSISSIPPI

* UNTIL 340 PM CDT

* AT 142 PM CDT...WEATHER SERVICE DOPPLER RADAR INDICATED HEAVY RAIN
  OVER GRENADA LAKE...OR ABOUT 5 MILES NORTHEAST OF GRENADA...MOVING
  NORTH AT 10 MPH.

RADAR ESTIMATED RAINFALL AMOUNTS 2 TO 3 INCHES OF RAIN HAVE FALLEN 
IN THE LAST 30 MINUTES. AN ADDITIONAL 2 INCHES WILL BE POSSIBLE 
THROUGH 340 PM.

VERY HEAVY RAIN FROM THIS STORM WILL CAUSE FLASH FLOODING OF SMALL
CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...COUNTRY
ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS AND STREAMS AND OTHER
LOW LYING AREAS ARE SUBJECT TO FLASH FLOODING.

LAT...LON 3372 8983 3374 8961 3386 8959 3387 8991

$$

1 follow-up statement

000 
WGUS74 KJAN 271925
FFSJAN
MSC043-272040-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
223 PM CDT WED AUG 27 2003

FLASH FLOOD WARNING REMAINS IN EFFECT FOR...

GRENADA COUNTY IN NORTH CENTRAL MISSISSIPPI UNTIL 340 PM.

RADAR ESTIMATED RAINFALL AMOUNTS NEAR 3 INCHES OF RAIN HAVE FALLEN 
OVER CENTRAL GRENADA COUNTY IN THE PAST HOUR. AN ADDITIONAL 1 INCH 
WILL BE POSSIBLE THROUGH 340 PM.

VERY HEAVY RAIN FROM THIS STORM WILL CAUSE FLASH FLOODING OF SMALL
CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...COUNTRY
ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS AND STREAMS AND OTHER
LOW LYING AREAS ARE SUBJECT TO FLASH FLOODING.

$$

The office that day

Everything else NWS Jackson, MS issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Aug 27, 1:06 PM CDT	Severe Thunderstorm Warning	JAN	Yazoo	29 min
Aug 27, 1:22 PM CDT	Severe Thunderstorm Warning	JAN	Madison	43 min
Aug 27, 1:46 PM CDT	Severe Thunderstorm Warning	JAN	Yazoo	29 min
Aug 27, 1:54 PM CDT	Severe Thunderstorm Warning	JAN	Grenada	36 min
Aug 27, 2:06 PM CDT	Severe Thunderstorm Warning	JAN	Madison	24 min
Aug 27, 2:14 PM CDT	Severe Thunderstorm Warning	JAN	Neshoba	41 min
Aug 27, 2:55 PM CDT	Severe Thunderstorm Warning	JAN	Attala	45 min
Aug 27, 2:59 PM CDT	Severe Thunderstorm Warning	JAN	Holmes	46 min
Aug 27, 3:21 PM CDT	Flash Flood Warning	JAN	Attala	119 min
Aug 27, 3:35 PM CDT	Severe Thunderstorm Warning	JAN	Clay, Lowndes, Oktibbeha	60 min
Aug 27, 4:08 PM CDT	Severe Thunderstorm Warning	JAN	Leflore, Sunflower	27 min
Aug 27, 4:25 PM CDT	Severe Thunderstorm Warning	JAN	Warren	20 min
Aug 27, 4:38 PM CDT	Severe Thunderstorm Warning	JAN	Bolivar	37 min
Aug 27, 5:00 PM CDT	Severe Thunderstorm Warning	JAN	Copiah	50 min
Aug 27, 5:13 PM CDT	Severe Thunderstorm Warning	JAN	Franklin	42 min
Aug 27, 5:23 PM CDT	Severe Thunderstorm Warning	JAN	Claiborne	27 min
Aug 27, 5:25 PM CDT	Severe Thunderstorm Warning	JAN	Hinds	40 min

Nearby

Flash Flood Warnings in Mississippi, 2003 Every flash flood warning in 2003

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.