Alert archive / Mississippi / Areal Flood Advisories in 2021

Areal Flood Advisory 37, NWS Mobile, AL

June 4, 20214 counties in Mississippi

NWS Mobile, AL issued this areal flood advisory at Jun 4, 2021, 12:27 PM CDT for 4 counties in Mississippi. It was in force for 4 hr.

The area

The counties it named.

The facts

Issued
Jun 4, 2021, 12:27 PM CDT (17:27 UTC)
Expired
Jun 4, 2021, 4:30 PM CDT
In force
4 hr
Issued by
NWS Mobile, AL
Area
Storm-based polygon

Counties George County, MS, Greene County, MS, Perry County, MS, Stone County, MS

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 5.5 hours before the alert went out and 117 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, Slidell Radar S, LA at 12:00Z on 2021-06-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 917 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, Slidell Radar S, LA at 12:00Z on 2021-06-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 26 square meters per square second.193958Sfc1 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
917 J/kg
Mixed-layer CIN
-25 J/kg
Mixed-layer LCL
887 m above ground
0-6 km bulk shear
12 kt
0-1 km storm-relative helicity
26 m²/s²
0-3 km storm-relative helicity
34 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 areal flood advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Mobile, AL wrote its last area forecast discussion before this areal flood advisory went out at Jun 4, 7:05 AM CDT, 5 hours 22 minutes earlier.

Area forecast discussion, Jun 4, 7:05 AM CDT, 5 hours 22 minutes before
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The office that day

Everything else NWS Mobile, AL issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 4, 1:20 PM CDTAreal Flood AdvisoryMOBClarke, Mobile, Washington3 hr
Jun 4, 1:51 PM CDTSpecial Weather StatementMOBMobile39 min
Jun 4, 2:37 PM CDTSpecial Weather StatementMOBCrenshaw38 min
Jun 4, 3:25 PM CDTAreal Flood AdvisoryMOBClarke, Wilcox3 hr

Nearby

Areal Flood Advisories in Mississippi, 2021Every areal flood advisory in 2021

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.