Alert archive / Mississippi / Flash Flood Warnings in 2010

Flash Flood Warning 108, NWS Jackson, MS

October 24, 2010Bolivar County, Sunflower County, Washington County, Mississippi; Ashley County, Chicot County, Arkansas

NWS Jackson, MS issued this flash flood warning at Oct 24, 2010, 9:49 PM CDT for Bolivar County, Sunflower County, Washington County, Mississippi; Ashley County, Chicot County, Arkansas. It was in force for 116 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: Oct 24, 2010, 9:49 PM CDT (02:49 UTC)
Expired: Oct 24, 2010, 11:45 PM CDT
In force: 116 min
Issued by: NWS Jackson, MS
Area: Storm-based polygon
Flood severity: None

Counties Ashley County, AR, Chicot County, AR, Bolivar County, MS, Sunflower County, MS, Washington County, MS

The radar

The Jackson/Brandon,MS radar (KDGX), 165 km from the middle of the area, began a volume at 02:53 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, 2.8 hours before the alert went out and 188 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: 79 J/kg
Mixed-layer CIN: -138 J/kg
Mixed-layer LCL: 1875 m above ground
0-6 km bulk shear: 39 kt
0-1 km storm-relative helicity: 167 m²/s²
0-3 km storm-relative helicity: 122 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 Jackson, MS wrote its last area forecast discussion before this flash flood warning went out at Oct 24, 9:05 PM CDT, 44 minutes earlier.

Area forecast discussion, Oct 24, 9:05 PM CDT, 44 minutes before

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Hazardous weather outlook, Oct 24, 8:14 PM CDT, 1 hour 35 minutes before

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In the hours before

Special weather statement, Oct 24, 7:24 PM CDT, 2 hours 25 minutes before

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Special weather statement, Oct 24, 7:51 PM CDT, 1 hour 58 minutes before

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Special weather statement, Oct 24, 7:57 PM CDT, 1 hour 52 minutes before

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Special weather statement, Oct 24, 8:45 PM CDT, 1 hour 4 minutes before

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Special weather statement, Oct 24, 9:29 PM CDT, 20 minutes before

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Special weather statement, Oct 24, 9:38 PM CDT, 11 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Oct 24, 7:32 PM CDT	Severe Thunderstorm Warning	JAN	Bolivar	43 min
Oct 24, 9:33 PM CDT	Severe Thunderstorm Warning	JAN	Bolivar, Sunflower, Washington	57 min
Oct 24, 11:21 PM CDT	Severe Thunderstorm Warning	JAN	Carroll, Choctaw, Grenada, Montgomery, Webster	54 min
Oct 25, 12:34 AM CDT	Severe Thunderstorm Warning	JAN	Leake, Neshoba, Newton, Rankin, Scott	56 min
Oct 25, 1:14 AM CDT	Severe Thunderstorm Warning	JAN	Lowndes, Noxubee	46 min
Oct 25, 1:26 AM CDT	Severe Thunderstorm Warning	JAN	Kemper, Neshoba	64 min
Oct 25, 3:54 PM CDT	Wind Advisory	JAN	Adams, Attala, Bolivar, Carroll, Choctaw, Claiborne and 41 more	24 hr
Oct 24, 7:06 PM CDT	Severe Thunderstorm Warning	JAN	Ashley	54 min
Oct 24, 8:47 PM CDT	Severe Thunderstorm Warning	JAN	Ashley, Chicot	58 min
Oct 24, 9:44 PM CDT	Severe Thunderstorm Warning	JAN	Ashley, Chicot	42 min

Nearby

Flash Flood Warnings in Mississippi, 2010 Flash Flood Warnings in Arkansas, 2010 Every flash flood warning in 2010

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.