Alert archive / Tennessee / Special Weather Statements in 2020

Special Weather Statement, NWS Memphis, TN

September 1, 2020Gibson County, Weakley County, Tennessee

NWS Memphis, TN issued this special weather statement at Sep 1, 2020, 12:21 PM CDT for Gibson County, Weakley County, Tennessee. It was in force for 39 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: Sep 1, 2020, 12:21 PM CDT (17:21 UTC)
Expired: Sep 1, 2020, 1:00 PM CDT
In force: 39 min
Issued by: NWS Memphis, TN

Counties Gibson County, TN, Weakley County, TN

The radar

The Paducah radar (KPAH), 90 km from the middle of the area, began a volume at 17:24 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, 5.4 hours before the alert went out and 196 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: 69 J/kg
Mixed-layer CIN: -31 J/kg
Mixed-layer LCL: 570 m above ground
0-6 km bulk shear: 18 kt
0-1 km storm-relative helicity: 42 m²/s²
0-3 km storm-relative helicity: 62 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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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 Sep 1, 9:55 AM CDT, 2 hours 26 minutes earlier.

Area forecast discussion, Sep 1, 9:55 AM CDT, 2 hours 26 minutes before

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Hazardous weather outlook, Sep 1, 8:59 AM CDT, 3 hours 22 minutes before

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In the hours before

Local storm report, Sep 1, 8:48 AM CDT, 3 hours 33 minutes before

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Local storm report, Sep 1, 10:29 AM CDT, 1 hour 52 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MEMPHIS TN
1029 AM CDT TUE SEP 01 2020

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0850 AM     FLASH FLOOD      2 NW JONESBORO          35.84N  90.72W
09/01/2020                   CRAIGHEAD          AR   LAW ENFORCEMENT

            HUNTINGTON, MONROE, WASHINGTON, AND MATTHEWS AVENUES
            IMPASABLE DUE TO HIGH WATER.

&&

MJ

Special weather statement, Sep 1, 11:06 AM CDT, 1 hour 15 minutes before

Special Weather Statement
National Weather Service Memphis TN
1106 AM CDT Tue Sep 1 2020

TNZ019-011630-
Dyer TN-
1106 AM CDT Tue Sep 1 2020

...A SIGNIFICANT WEATHER ADVISORY HAS BEEN ISSUED UNTIL 1130 AM CDT
FOR...

Central Dyer County in western Tennessee...

At 1106 AM CDT...a strong thunderstorm producing heavy rain was
located near Bradleytown, or 8 miles west of Dyersburg, moving
northeast at 35 mph.

Dangerous cloud to ground lightning is also possible with this
thunderstorm.

People in central Dyer County should monitor this storm closely.

LAT...LON 3616 8929 3602 8930 3592 8960 3603 8969
      3609 8968 3610 8967 3612 8960 3613 8959
      3615 8959 3619 8952 3619 8949 3621 8948
      3621 8945
TIME...MOT...LOC 1606Z 241DEG 30KT 3606 8952

Special weather statement, Sep 1, 12:21 PM CDT, 0 minutes before

Special Weather Statement
National Weather Service Memphis TN
1221 PM CDT Tue Sep 1 2020

TNZ002-003-020-021-011800-
Carroll TN-Weakley TN-Obion TN-Gibson TN-
1221 PM CDT Tue Sep 1 2020

...A SIGNIFICANT WEATHER ADVISORY HAS BEEN ISSUED UNTIL 100 PM CDT
FOR...

Northwestern Carroll County in western Tennessee...
Weakley County in western Tennessee...
Eastern Obion County in western Tennessee...
Northern Gibson County in western Tennessee...

At 1221 PM CDT...strong thunderstorms producing wind gusts up to 45
mph was located along a line extending from near Cayce to Martin to
near Trenton. Movement was east at 30 mph.

Very heavy rain along with continuous cloud to ground lightning are
also possible with this thunderstorm.

People in northwestern Carroll...Weakley...eastern Obion and northern
Gibson Counties should monitor this storm closely.

LAT...LON 3629 8852 3601 8863 3596 8911 3629 8903
      3650 8910 3650 8852
TIME...MOT...LOC 1721Z 256DEG 25KT 3655 8896 3633 8886 3598 8900

MJ

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 31, 7:12 PM CDT	Special Weather Statement	MEG	Lee, Monroe	48 min
Aug 31, 7:25 PM CDT	Severe Thunderstorm Warning	MEG	Chickasaw, Itawamba, Lee, Monroe, Pontotoc	50 min
Aug 31, 8:14 PM CDT	Special Weather Statement	MEG	Monroe	46 min
Sep 1, 4:59 AM CDT	Dense Fog Advisory	MEG	Alcorn, Itawamba, Lee, Monroe, Prentiss, Tishomingo	4 hr
Sep 1, 2:11 PM CDT	Special Weather Statement	MEG	Tishomingo	34 min
Sep 1, 6:05 PM CDT	Severe Thunderstorm Warning	MEG	Coahoma, Tunica	40 min
Sep 1, 6:48 PM CDT	Special Weather Statement	MEG	Tate, Tunica	27 min
Sep 1, 9:49 AM CDT	Flash Flood Watch	MEG	Benton, Carroll, Crockett, Dyer, Gibson, Henry and 4 more	41 hr
Sep 1, 11:06 AM CDT	Special Weather Statement	MEG	Dyer	24 min
Sep 1, 12:11 PM CDT	Areal Flood Advisory	MEG	Dyer, Gibson, Lake, Obion	2 hr
Sep 1, 12:58 PM CDT	Special Weather Statement	MEG	Henry, Weakley	47 min
Sep 1, 1:02 PM CDT	Areal Flood Advisory	MEG	Carroll, Gibson, Henry, Weakley	3 hr
Sep 1, 1:41 PM CDT	Special Weather Statement	MEG	Benton, Carroll, Henry	49 min
Sep 1, 2:20 PM CDT	Areal Flood Advisory	MEG	Benton, Carroll, Gibson, Henry	3 hr
Sep 1, 4:55 PM CDT	Flash Flood Warning	MEG	Benton, Decatur	2 hr
Sep 1, 5:18 PM CDT	Tornado Warning	MEG	Lake	27 min
Sep 1, 5:35 PM CDT	Tornado Warning	MEG	Lake, Obion	25 min
Sep 1, 5:55 PM CDT	Tornado Warning	MEG	Obion	24 min
Sep 1, 8:44 AM CDT	Flash Flood Warning	MEG	Craighead	3 hr
Sep 1, 9:34 AM CDT	Areal Flood Advisory	MEG	Craighead, Greene	3 hr
Sep 1, 5:14 PM CDT	Special Weather Statement	MEG	Craighead	31 min
Sep 1, 5:32 PM CDT	Severe Thunderstorm Warning	MEG	Cross, Poinsett	26 min
Sep 1, 5:46 PM CDT	Special Weather Statement	MEG	Phillips	44 min

Nearby

Special Weather Statements in Tennessee, 2020 Every special weather statement in 2020

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.