Alert archive / Mississippi / Flash Flood Watches in 2013

Flash Flood Watch 12, NWS Jackson, MS

July 5, 201343 counties in Mississippi

NWS Jackson, MS issued this flash flood watch at Jul 5, 2013, 9:39 AM CDT for 43 counties in Mississippi. It took effect at Jul 5, 2013, 1:48 PM CDT. It was in force for 7 hr.

The area

The counties it named.

The facts

Issued
Jul 5, 2013, 9:39 AM CDT (14:39 UTC)
In effect from
Jul 5, 2013, 1:48 PM CDT
Expired
Jul 5, 2013, 9:17 PM CDT
In force
7 hr
Issued by
NWS Jackson, MS
Flood severity
None
All 43 counties

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, 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, Simpson County, MS, Smith County, MS, Sunflower County, MS, Warren County, MS, Webster County, MS, Winston County, MS, Yazoo County, MS

The radar

The Jackson/Brandon,MS radar (KDGX), 33 km from the middle of the area, began a volume at 14:39 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, 2.7 hours before the alert went out and 37 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 2013-07-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2139 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 2013-07-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 4 square meters per square second.19395878Sfc1 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
2139 J/kg
Mixed-layer CIN
-42 J/kg
Mixed-layer LCL
650 m above ground
0-6 km bulk shear
24 kt
0-1 km storm-relative helicity
4 m²/s²
0-3 km storm-relative helicity
86 m²/s²
Significant tornado parameter
0.1
Supercell composite
0.9

Open this sounding in Storm Lab

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 5, 12:40 AM CDTSpecial Weather StatementJANSmith45 min
Jul 5, 1:38 PM CDTFlash Flood WarningJANHinds2 hr
Jul 5, 2:21 PM CDTFlash Flood WarningJANHinds, Warren114 min
Jul 5, 2:37 PM CDTSpecial Weather StatementJANClaiborne28 min
Jul 5, 2:43 PM CDTSpecial Weather StatementJANSharkey32 min
Jul 5, 2:49 PM CDTFlash Flood WarningJANLowndes, Noxubee3 hr
Jul 5, 3:47 PM CDTSpecial Weather StatementJANWashington28 min
Jul 5, 4:52 PM CDTFlash Flood WarningJANCopiah, Lincoln113 min
Jul 5, 5:44 PM CDTFlash Flood WarningJANLowndes3 hr

Nearby

Flash Flood Watches in Mississippi, 2013Every flash flood watch in 2013

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.