Alert archive / Mississippi / Flash Flood Watches in 2008

Flash Flood Watch 3, NWS Jackson, MS

April 26, 200844 counties in Mississippi; 9 parishes in Louisiana

NWS Jackson, MS issued this flash flood watch at Apr 26, 2008, 1:48 PM CDT for 44 counties in Mississippi; 9 parishes in Louisiana. It took effect at Apr 26, 2008, 3:00 PM CDT. It was in force for 24 hr.

The area

The counties it named.

The facts

Issued
Apr 26, 2008, 1:48 PM CDT (18:48 UTC)
In effect from
Apr 26, 2008, 3:00 PM CDT
Expired
Apr 27, 2008, 2:36 PM CDT
In force
24 hr
Issued by
NWS Jackson, MS
Flood severity
None
All 53 counties

Catahoula Parish, LA, Concordia Parish, LA, East Carroll Parish, LA, Franklin Parish, LA, Madison Parish, LA, Morehouse Parish, LA, Richland Parish, LA, Tensas Parish, LA, West Carroll Parish, LA, Adams County, MS, Attala County, MS, Carroll County, MS, Choctaw County, MS, Claiborne County, MS, Clarke County, MS, Clay County, MS, Copiah County, MS, Covington County, MS, Forrest County, MS, Franklin County, MS, Grenada County, MS, Hinds County, MS, Holmes County, MS, Humphreys County, MS, Issaquena County, MS, Jasper County, MS, Jefferson County, MS, Jefferson Davis County, MS, Jones County, MS, Kemper County, MS, Lamar County, MS, Lauderdale County, MS, Lawrence County, MS, Leake County, MS, Leflore County, MS, Lincoln County, MS, Lowndes County, MS, Madison County, MS, Marion County, MS, Montgomery County, MS, Neshoba County, MS, Newton County, MS, Noxubee County, MS, Oktibbeha County, MS, Rankin County, MS, Scott County, MS, Sharkey County, MS, Simpson County, MS, Smith County, MS, Warren County, MS, Webster County, MS, Winston County, MS, Yazoo County, MS

The radar

The Jackson/Brandon,MS radar (KDGX), 19 km from the middle of the area, began a volume at 18:47 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

Jackson, MS (KJAN), launched 12:00Z, 6.8 hours before the alert went out and 13 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, Jackson, MS at 12:00Z on 2008-04-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 814 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, Jackson, MS at 12:00Z on 2008-04-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 115 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
814 J/kg
Mixed-layer CIN
-7 J/kg
Mixed-layer LCL
547 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
115 m²/s²
0-3 km storm-relative helicity
80 m²/s²
Significant tornado parameter
0.3
Supercell composite
1.5

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this flash flood watch went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Jackson, MS wrote its last area forecast discussion before this flash flood watch went out at Apr 26, 10:10 AM CDT, 3 hours 38 minutes earlier.

Area forecast discussion, Apr 26, 10:10 AM CDT, 3 hours 38 minutes before
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Hazardous weather outlook, Apr 26, 8:40 AM CDT, 5 hours 8 minutes before
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In the hours before

Special weather statement, Apr 26, 8:05 AM CDT, 5 hours 43 minutes before
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Special weather statement, Apr 26, 8:50 AM CDT, 4 hours 58 minutes before
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Local storm report, Apr 26, 10:04 AM CDT, 3 hours 44 minutes before
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      <h1 id="headline">This service is currently unavailable.</h1>
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The office that day

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

IssuedProductOfficeCountiesLasted
Apr 26, 2:00 AM CDTSevere Thunderstorm WarningJANWashington45 min
Apr 26, 2:09 AM CDTFlash Flood WarningJANBolivar, Leflore, Sunflower, Washington116 min
Apr 26, 3:01 AM CDTSevere Thunderstorm WarningJANCarroll, Holmes, Leflore51 min
Apr 26, 3:45 PM CDTSevere Thunderstorm WarningJANMadison, Rankin45 min
Apr 26, 3:48 PM CDTSevere Thunderstorm WarningJANCovington, Jefferson Davis, Lawrence42 min
Apr 26, 4:33 PM CDTSevere Thunderstorm WarningJANCovington, Jefferson Davis, Simpson, Smith57 min
Apr 26, 4:35 PM CDTSevere Thunderstorm WarningJANCopiah, Lawrence, Lincoln, Simpson55 min
Apr 26, 5:27 PM CDTSevere Thunderstorm WarningJANRankin, Simpson37 min
Apr 26, 1:05 AM CDTSevere Thunderstorm WarningJANAshley, Chicot25 min

Nearby

Flash Flood Watches in Mississippi, 2008Flash Flood Watches in Louisiana, 2008Every flash flood watch in 2008

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.