Alert archive / Mississippi / Areal Flood Advisories in 2021

Areal Flood Advisory 49, NWS Memphis, TN

June 2, 20214 counties in Mississippi

NWS Memphis, TN issued this areal flood advisory at Jun 2, 2021, 12:48 PM CDT for 4 counties in Mississippi. It was in force for 3 hr.

The area

The counties it named.

The facts

Issued
Jun 2, 2021, 12:48 PM CDT (17:48 UTC)
Expired
Jun 2, 2021, 3:45 PM CDT
In force
3 hr
Issued by
NWS Memphis, TN
Area
Storm-based polygon

Counties Calhoun County, MS, Lafayette County, MS, Pontotoc County, MS, Union County, MS

The radar

The Columbus AFB radar (KGWX), 91 km from the middle of the area, began a volume at 17:50 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 12:00Z, 5.8 hours before the alert went out and 93 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, Little Rock, AR at 12:00Z on 2021-06-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 205 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, Little Rock, AR at 12:00Z on 2021-06-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 39 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
205 J/kg
Mixed-layer CIN
-11 J/kg
Mixed-layer LCL
551 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
39 m²/s²
0-3 km storm-relative helicity
66 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

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 Memphis, TN wrote its last area forecast discussion before this areal flood advisory went out at Jun 2, 12:22 PM CDT, 26 minutes earlier.

Area forecast discussion, Jun 2, 12:22 PM CDT, 26 minutes before
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Hazardous weather outlook, Jun 2, 3:14 AM CDT, 9 hours 34 minutes before
Hazardous Weather Outlook
National Weather Service Memphis TN
314 AM CDT Wed Jun 2 2021

ARZ009-018-026>028-035-036-048-049-058-MOZ113-115-MSZ001>017-
020>024-TNZ001>004-019>022-048>055-088>092-031015-
Alcorn-Benton MS-Benton TN-Calhoun-Carroll-Chester-Chickasaw-Clay-
Coahoma-Craighead-Crittenden-Crockett-Cross-DeSoto-Decatur-
Dunklin-Dyer-Fayette-Gibson-Greene-Hardeman-Hardin-Haywood-
Henderson-Henry-Itawamba-Lafayette-Lake-Lauderdale-Lee AR-Lee MS-
Madison-Marshall-McNairy-Mississippi-Monroe-Obion-Panola-Pemiscot-
Phillips-Poinsett-Pontotoc-Prentiss-Quitman-Shelby-St. Francis-
Tallahatchie-Tate-Tippah-Tipton-Tishomingo-Tunica-Union-Weakley-
Yalobusha-
314 AM CDT Wed Jun 2 2021

This hazardous weather outlook is for portions of East Arkansas...
the Missouri Bootheel...North Mississippi...and West Tennessee.

.DAY ONE...Today and Tonight

There is a Marginal Risk for severe storms over areas along and
east of the Mississippi River on Wednesday. Damaging winds will
be the primary risk if any thunderstorms reach severe limits.
Localized heavy rainfall also possible.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed late Wednesday afternoon east of
the Mississippi River.

The office that day

Everything else NWS Memphis, TN issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 1, 9:58 PM CDTAreal Flood AdvisoryMEGDeSoto2 hr
Jun 1, 11:49 PM CDTSpecial Weather StatementMEGMonroe41 min
Jun 2, 12:56 PM CDTSpecial Weather StatementMEGUnion34 min
Jun 2, 3:06 PM CDTSpecial Weather StatementMEGItawamba24 min
Jun 2, 4:54 PM CDTSpecial Weather StatementMEGPrentiss36 min
Jun 2, 4:02 PM CDTSevere Thunderstorm WarningMEGBenton, Carroll, Henry43 min
Jun 2, 4:31 PM CDTSpecial Weather StatementMEGObion29 min
Jun 2, 4:58 PM CDTSpecial Weather StatementMEGWeakley32 min
Jun 2, 6:34 PM CDTSpecial Weather StatementMEGCarroll26 min

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; radar from the NEXRAD Level II archive.