Alert archive / Mississippi / Special Weather Statements in 2018

Special Weather Statement, NWS Memphis, TN

July 19, 2018Yalobusha County, Mississippi

NWS Memphis, TN issued this special weather statement at Jul 19, 2018, 11:39 PM CDT for Yalobusha County, Mississippi. It was in force for 51 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: Jul 19, 2018, 11:39 PM CDT (04:39 UTC)
Expired: Jul 20, 2018, 12:30 AM CDT
In force: 51 min
Issued by: NWS Memphis, TN

County Yalobusha County, MS

The radar

The Columbus AFB radar (KGWX), 144 km from the middle of the area, began a volume at 04:40 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 (KBYH), launched 00:00Z, 4.7 hours before the alert went out and 105 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: 3860 J/kg
Mixed-layer CIN: -16 J/kg
Mixed-layer LCL: 1358 m above ground
0-6 km bulk shear: 37 kt
0-1 km storm-relative helicity: 52 m²/s²
0-3 km storm-relative helicity: 237 m²/s²
Significant tornado parameter: 2.1
Supercell composite: 21.5

Open this sounding in Storm Lab

The text

As transmitted.

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Jul 19, 11:37 PM CDT, 2 minutes earlier.

Area forecast discussion, Jul 19, 11:37 PM CDT, 2 minutes before

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Hazardous weather outlook, Jul 19, 11:07 PM CDT, 32 minutes before

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In the hours before

Local storm report, Jul 19, 10:00 PM CDT, 1 hour 39 minutes before

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Local storm report, Jul 19, 10:10 PM CDT, 1 hour 29 minutes before

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Special weather statement, Jul 19, 10:19 PM CDT, 1 hour 20 minutes before

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Special weather statement, Jul 19, 10:56 PM CDT, 43 minutes before

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Special weather statement, Jul 19, 11:20 PM CDT, 19 minutes before

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Special weather statement, Jul 19, 11:39 PM CDT, 0 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 19, 7:02 PM CDT	Special Weather Statement	MEG	Weakley	43 min
Jul 19, 7:21 PM CDT	Special Weather Statement	MEG	Obion	24 min
Jul 19, 7:29 PM CDT	Special Weather Statement	MEG	Henry	46 min
Jul 19, 7:37 PM CDT	Special Weather Statement	MEG	Gibson	38 min
Jul 19, 7:54 PM CDT	Areal Flood Advisory	MEG	Fayette, Shelby	82 min
Jul 19, 7:55 PM CDT	Severe Thunderstorm Warning	MEG	Fayette, Shelby	50 min
Jul 19, 8:09 PM CDT	Special Weather Statement	MEG	Gibson	51 min
Jul 19, 8:21 PM CDT	Special Weather Statement	MEG	Henry	39 min
Jul 19, 8:26 PM CDT	Special Weather Statement	MEG	Fayette	49 min
Jul 19, 8:35 PM CDT	Severe Thunderstorm Warning	MEG	Fayette, Shelby	29 min
Jul 19, 8:51 PM CDT	Special Weather Statement	MEG	Hardeman	39 min
Jul 19, 9:51 PM CDT	Special Weather Statement	MEG	Haywood	24 min
Jul 19, 10:13 PM CDT	Severe Thunderstorm Warning	MEG	Fayette, Hardeman, Haywood, Madison	18 min
Jul 20, 3:34 AM CDT	Excessive Heat Warning	MEG	Lauderdale, Shelby, Tipton	16 hr
Jul 19, 7:01 PM CDT	Special Weather Statement	MEG	Marshall	44 min
Jul 19, 7:36 PM CDT	Special Weather Statement	MEG	Marshall	39 min
Jul 19, 8:00 PM CDT	Special Weather Statement	MEG	Coahoma	45 min
Jul 19, 8:11 PM CDT	Special Weather Statement	MEG	Benton	49 min
Jul 19, 8:13 PM CDT	Special Weather Statement	MEG	Quitman	47 min
Jul 19, 8:48 PM CDT	Severe Thunderstorm Warning	MEG	Coahoma, Quitman	42 min
Jul 19, 8:50 PM CDT	Special Weather Statement	MEG	Tippah	40 min
Jul 19, 8:59 PM CDT	Special Weather Statement	MEG	Tate	46 min
Jul 19, 9:01 PM CDT	Special Weather Statement	MEG	Panola, Quitman	44 min
Jul 19, 9:29 PM CDT	Severe Thunderstorm Warning	MEG	Coahoma	29 min
Jul 19, 9:30 PM CDT	Severe Thunderstorm Warning	MEG	Panola, Tate	45 min
Jul 19, 9:32 PM CDT	Special Weather Statement	MEG	Lafayette	43 min
Jul 19, 9:46 PM CDT	Severe Thunderstorm Warning	MEG	Calhoun, Lafayette, Panola, Yalobusha	33 min
Jul 19, 10:19 PM CDT	Special Weather Statement	MEG	Lafayette, Panola	41 min
Jul 19, 10:56 PM CDT	Special Weather Statement	MEG	Yalobusha	49 min
Jul 19, 11:20 PM CDT	Special Weather Statement	MEG	Pontotoc	40 min
Jul 19, 11:40 PM CDT	Special Weather Statement	MEG	Pontotoc, Union	50 min
Jul 20, 11:50 AM CDT	Special Weather Statement	MEG	Coahoma	40 min
Jul 20, 6:20 PM CDT	Severe Thunderstorm Warning	MEG	Dunklin	18 min

Nearby

Special Weather Statements in Mississippi, 2018 Every special weather statement in 2018

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.