Alert archive / Tennessee / Special Weather Statements in 2012

Special Weather Statement, NWS Memphis, TN

May 20, 2012Tipton County, Tennessee

NWS Memphis, TN issued this special weather statement at May 20, 2012, 2:42 PM CDT for Tipton County, Tennessee. It was in force for 33 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: May 20, 2012, 2:42 PM CDT (19:42 UTC)
Expired: May 20, 2012, 3:15 PM CDT
In force: 33 min
Issued by: NWS Memphis, TN

County Tipton County, TN

The radar

The Memphis radar (KNQA), 27 km from the middle of the area, began a volume at 19:44 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, 7.7 hours before the alert went out and 83 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: 296 J/kg
Mixed-layer CIN: -82 J/kg
Mixed-layer LCL: 1577 m above ground
0-6 km bulk shear: 6 kt
0-1 km storm-relative helicity: -47 m²/s²
0-3 km storm-relative helicity: -29 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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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 May 20, 12:46 PM CDT, 1 hour 56 minutes earlier.

Area forecast discussion, May 20, 12:46 PM CDT, 1 hour 56 minutes before

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Hazardous weather outlook, May 20, 12:41 PM CDT, 2 hours 1 minute before

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In the hours before

Special weather statement, May 20, 2:42 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
May 20, 2:53 PM CDT	Severe Thunderstorm Warning	MEG	Tipton	17 min
May 20, 4:20 PM CDT	Special Weather Statement	MEG	Dyer	25 min
May 20, 4:27 PM CDT	Special Weather Statement	MEG	Lake	18 min
May 20, 4:43 PM CDT	Special Weather Statement	MEG	Lake	27 min
May 20, 4:46 PM CDT	Special Weather Statement	MEG	Lake	29 min
May 20, 4:54 PM CDT	Severe Thunderstorm Warning	MEG	Lake	34 min
May 20, 5:09 PM CDT	Severe Thunderstorm Warning	MEG	Shelby	51 min
May 20, 5:15 PM CDT	Special Weather Statement	MEG	Madison	30 min
May 20, 5:17 PM CDT	Special Weather Statement	MEG	Lake	28 min
May 20, 6:08 PM CDT	Special Weather Statement	MEG	Weakley	22 min
May 20, 4:57 PM CDT	Special Weather Statement	MEG	Crittenden	33 min
May 20, 5:35 PM CDT	Special Weather Statement	MEG	Crittenden	25 min
May 20, 5:43 PM CDT	Special Weather Statement	MEG	Crittenden	32 min
May 20, 5:55 PM CDT	Special Weather Statement	MEG	Crittenden	35 min
May 20, 6:31 PM CDT	Special Weather Statement	MEG	Crittenden	29 min
May 20, 6:35 PM CDT	Special Weather Statement	MEG	Mississippi	25 min
May 20, 6:40 PM CDT	Flash Flood Warning	MEG	Crittenden	84 min
May 20, 6:58 PM CDT	Special Weather Statement	MEG	Greene	32 min
May 20, 5:07 PM CDT	Special Weather Statement	MEG	Dunklin	23 min
May 20, 5:38 PM CDT	Special Weather Statement	MEG	Dunklin	37 min

Nearby

Special Weather Statements in Tennessee, 2012 Every special weather statement in 2012

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.