Alert archive / Mississippi / Special Weather Statements in 2021

Special Weather Statement, NWS Memphis, TN

August 15, 2021Tishomingo County, Mississippi

NWS Memphis, TN issued this special weather statement at Aug 15, 2021, 1:26 PM CDT for Tishomingo County, Mississippi. It was in force for 34 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Aug 15, 2021, 1:26 PM CDT (18:26 UTC)
Expired: Aug 15, 2021, 2:00 PM CDT
In force: 34 min
Issued by: NWS Memphis, TN
Hail: 0.00 in
Wind: 40

County Tishomingo County, MS

The radar

The Columbus AFB radar (KGWX), 120 km from the middle of the area, began a volume at 18:29 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

Nashville Metro, TN (KBNA), launched 12:00Z, 6.4 hours before the alert went out and 194 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: 152 J/kg
Mixed-layer CIN: -98 J/kg
Mixed-layer LCL: 697 m above ground
0-6 km bulk shear: 9 kt
0-1 km storm-relative helicity: 23 m²/s²
0-3 km storm-relative helicity: 36 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

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The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 14, 7:23 PM CDT	Flash Flood Warning	MEG	Yalobusha	5 hr
Aug 14, 7:32 PM CDT	Special Weather Statement	MEG	Monroe	28 min
Aug 14, 7:54 PM CDT	Flash Flood Warning	MEG	Calhoun, Yalobusha	4 hr
Aug 14, 8:10 PM CDT	Special Weather Statement	MEG	Lee	35 min
Aug 15, 1:26 PM CDT	Areal Flood Advisory	MEG	Alcorn, Tishomingo	4 hr
Aug 15, 3:36 PM CDT	Areal Flood Advisory	MEG	Prentiss, Tishomingo	3 hr
Aug 15, 4:42 PM CDT	Areal Flood Advisory	MEG	Lafayette	2 hr
Aug 15, 12:41 PM CDT	Areal Flood Advisory	MEG	Hardin	43 min
Aug 15, 1:24 PM CDT	Flash Flood Warning	MEG	Hardin	4 hr

Nearby

Special Weather Statements in Mississippi, 2021 Every special weather statement 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.