Alert archive / Tennessee / Severe Thunderstorm Warnings in 2015

Severe Thunderstorm Warning 213, NWS Memphis, TN

August 10, 20154 counties in Tennessee

NWS Memphis, TN issued this severe thunderstorm warning at Aug 10, 2015, 3:37 AM CDT for 4 counties in Tennessee. It was in force for 38 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Aug 10, 2015, 3:37 AM CDT (08:37 UTC)
Expired: Aug 10, 2015, 4:15 AM CDT
In force: 38 min
Issued by: NWS Memphis, TN
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Carroll County, TN, Gibson County, TN, Obion County, TN, Weakley County, TN

The radar

The Paducah radar (KPAH), 101 km from the middle of the area, began a volume at 08:41 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, 8.6 hours before the alert went out and 180 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: 2688 J/kg
Mixed-layer CIN: -43 J/kg
Mixed-layer LCL: 1602 m above ground
0-6 km bulk shear: 32 kt
0-1 km storm-relative helicity: 118 m²/s²
0-3 km storm-relative helicity: 181 m²/s²
Significant tornado parameter: 0.5
Supercell composite: 10.2

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm warning 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 severe thunderstorm warning went out at Aug 9, 11:44 PM CDT, 3 hours 53 minutes earlier.

Area forecast discussion, Aug 9, 11:44 PM CDT, 3 hours 53 minutes before

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Hazardous weather outlook, Aug 9, 10:02 PM CDT, 5 hours 35 minutes before

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In the hours before

Special weather statement, Aug 10, 2:26 AM CDT, 1 hour 11 minutes before

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Special weather statement, Aug 10, 3:00 AM CDT, 37 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MEMPHIS TN
300 AM CDT MON AUG 10 2015

ARZ009-018-028-MOZ113-115-TNZ019-100845-
MISSISSIPPI AR-GREENE AR-CLAY AR-PEMISCOT MO-DUNKLIN MO-DYER TN-
300 AM CDT MON AUG 10 2015

...THE NATIONAL WEATHER SERVICE IN MEMPHIS HAS ISSUED A SIGNIFICANT
WEATHER ADVISORY UNTIL UNTIL 345 AM CDT FOR...

NORTHEASTERN MISSISSIPPI COUNTY IN EASTERN ARKANSAS...
NORTHEASTERN GREENE COUNTY IN EASTERN ARKANSAS...
SOUTHEASTERN CLAY COUNTY IN EASTERN ARKANSAS...
SOUTHWESTERN PEMISCOT COUNTY IN SOUTHEASTERN MISSOURI...
DUNKLIN COUNTY IN SOUTHEASTERN MISSOURI...
WESTERN DYER COUNTY IN NORTHWEST TENNESSEE...

AT 300 AM CDT...A STRONG THUNDERSTORM PRODUCING WINDS AT LEAST 40 MPH
WAS LOCATED NEAR CLARKTON...OR NEAR CAMPBELL...MOVING SOUTHEAST AT 45
MPH.

VERY HEAVY RAIN ALONG WITH CONTINUOUS CLOUD TO GROUND LIGHTNING ARE
ALSO POSSIBLE WITH THIS THUNDERSTORM.

PEOPLE IN NORTHEASTERN MISSISSIPPI...NORTHEASTERN GREENE...
SOUTHEASTERN CLAY...SOUTHWESTERN PEMISCOT...DUNKLIN AND WESTERN DYER
COUNTIES SHOULD MONITOR THIS STORM CLOSELY.

LAT...LON 3652 8998 3625 8995 3600 8973 3600 9016
      3641 9028
TIME...MOT...LOC 0800Z 315DEG 38KT 3646 9003

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 10, 3:12 AM CDT	Excessive Heat Warning	MEG	Calhoun, Coahoma, Quitman, Tallahatchie, Yalobusha	7 hr
Aug 10, 2:58 AM CDT	Severe Thunderstorm Warning	MEG	Dyer, Lake, Obion	47 min
Aug 10, 3:43 AM CDT	Special Weather Statement	MEG	Dyer, Lake, Lauderdale	47 min
Aug 10, 4:14 AM CDT	Severe Thunderstorm Warning	MEG	Carroll, Gibson, Henry, Obion, Weakley	46 min
Aug 10, 4:18 AM CDT	Special Weather Statement	MEG	Crockett, Dyer, Gibson, Lauderdale	42 min
Aug 10, 4:55 AM CDT	Special Weather Statement	MEG	Lauderdale, Tipton	50 min
Aug 10, 5:44 AM CDT	Special Weather Statement	MEG	Shelby, Tipton	46 min
Aug 10, 7:32 AM CDT	Areal Flood Advisory	MEG	Fayette, Lauderdale, Shelby, Tipton	118 min
Aug 10, 2:26 AM CDT	Special Weather Statement	MEG	Clay	49 min
Aug 10, 4:20 AM CDT	Special Weather Statement	MEG	Mississippi	40 min
Aug 10, 7:03 AM CDT	Flash Flood Warning	MEG	Clay, Craighead, Greene, Mississippi, Randolph	3 hr

Nearby

Severe Thunderstorm Warnings in Tennessee, 2015 Every severe thunderstorm warning in 2015

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.