Alert archive / Mississippi / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 335, NWS Memphis, TN

November 5, 2018Alcorn County, Prentiss County, Tishomingo County, Mississippi

NWS Memphis, TN issued this severe thunderstorm warning at Nov 5, 2018, 10:44 PM CST for Alcorn County, Prentiss County, Tishomingo County, Mississippi. It was in force for 32 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: Nov 5, 2018, 10:44 PM CST (04:44 UTC)
Expired: Nov 5, 2018, 11:16 PM CST
In force: 32 min
Issued by: NWS Memphis, TN
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Alcorn County, MS, Prentiss County, MS, Tishomingo County, MS

The radar

The Columbus AFB radar (KGWX), 95 km from the middle of the area, began a volume at 04:45 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Nov 5, 7:04 PM CST	Tornado Watch	SPC	8 hr

The nearest sounding before it

Little Rock, AR (KBYH), launched 00:00Z, 4.7 hours before the alert went out and 138 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: 22 J/kg
Mixed-layer CIN: -63 J/kg
Mixed-layer LCL: 602 m above ground
0-6 km bulk shear: 66 kt
0-1 km storm-relative helicity: 3 m²/s²
0-3 km storm-relative helicity: 86 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

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 Nov 5, 8:04 PM CST, 2 hours 40 minutes earlier.

Area forecast discussion, Nov 5, 8:04 PM CST, 2 hours 40 minutes before

Area Forecast Discussion
National Weather Service Memphis TN
804 PM CST Mon Nov 5 2018

.DISCUSSION...

Skies are mostly cloudy over much of the forecast area this
evening with temperatures from the mid 50s to around 70 degrees.
The cold front has moved into east Arkansas and will cross the
Mississippi River in an hour or so. Severe thunderstorms have
begun to form ahead of the front and a Tornado Watch is in effect
until 3 AM CST. Behind the front, rain has ended and skies have
begun to clear out. Will update forecast to remove pops behind the
front.

ARS

&&

.PREV DISCUSSION... /issued 225 PM CST Mon Nov 5 2018/

DISCUSSION...
Focus is on severe weather.  The CAPE is relatively low, but the
shear is high. Helicity values are strong with the best overlap of
CAPE/Shear over north Mississippi.  This area of concern develops
rapidly mainly after 00Z.  Eventually a line of storms will develop
with embedded supercells. Obvious concerns are with damaging winds
and tornadoes.  This threat has been messaged extensively and
highlighted with an enhanced risk.

Area of severe weather moves rapidly through the area exiting CWA
by 08Z.

The overall flow remains fairly progressive over the rest of the
forecast period with deepening polar airmasses across the region.
By the weekend high pressure settles in and by Saturday morning
widespread frost/freezing conditions are looking more likely.

 Belles

AVIATION...
00z TAF Cycle

Low ceilings ahead of a cold front will keep conditions MVFR to
IFR for much of the evening and into the overnight. TSRA will
prevail, reducing visibility. Southerly winds will be gusty with
these storms at all terminals, potentially gusting to near 30
knots at times.

Conditions will gradually improve overnight as the front clears
the region, reducing winds which will become more northwesterly.
Have handled primary thunderstorm activity at all terminals with
TEMPO. VFR conditions return everywhere by early Tuesday morning,
prevailing to the end of the period.

ZDM

&&

.MEG WATCHES/WARNINGS/ADVISORIES...
AR...None.
MO...None.
MS...None.
TN...None.
&&

Hazardous weather outlook, Nov 5, 1:50 PM CST, 8 hours 54 minutes before

Hazardous Weather Outlook
National Weather Service Memphis TN
150 PM CST Mon Nov 5 2018

ARZ009-018-026>028-035-036-048-049-058-MOZ113-115-MSZ001>017-
020>024-TNZ001>004-019>022-048>055-088>092-061115-
Alcorn-Benton MS-Benton TN-Calhoun-Carroll-Chester-Chickasaw-Clay-
Coahoma-Craighead-Crittenden-Crockett-Cross-DeSoto-Decatur-
Dunklin-Dyer-Fayette-Gibson-Greene-Hardeman-Hardin-Haywood-
Henderson-Henry-Itawamba-Lafayette-Lake-Lauderdale-Lee AR-Lee MS-
Madison-Marshall-McNairy-Mississippi-Monroe-Obion-Panola-Pemiscot-
Phillips-Poinsett-Pontotoc-Prentiss-Quitman-Shelby-St. Francis-
Tallahatchie-Tate-Tippah-Tipton-Tishomingo-Tunica-Union-Weakley-
Yalobusha-
150 PM CST Mon Nov 5 2018

This hazardous weather outlook is for portions of East Arkansas...
the Missouri Bootheel...North Mississippi...and West Tennessee.

.DAY ONE...Today and Tonight

Severe thunderstorms are forecast late this afternoon into tonight.
The main threat will be damaging winds and tornadoes. Secondary
threats will be locally heavy rainfall and large hail.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday

Areas of frost and freezing temperatures will be possible both
Friday and Saturday nights across a large portion of the Midsouth.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will likely be needed late this afternoon
through tonight.

JAB/JEB

In the hours before

Special weather statement, Nov 5, 8:09 PM CST, 2 hours 35 minutes before

Special Weather Statement
National Weather Service Memphis TN
809 PM CST MON NOV 5 2018

TNZ003-004-021-022-060300-
Carroll TN-Weakley TN-Benton TN-Henry TN-
809 PM CST MON NOV 5 2018

...A SIGNIFICANT WEATHER ADVISORY HAS BEEN ISSUED UNTIL 900 PM CST
FOR...

Northeastern Carroll County in western Tennessee...
Southeastern Weakley County in western Tennessee...
Northern Benton County in western Tennessee...
Henry County in western Tennessee...

At 809 PM CST...a strong thunderstorm producing winds at least 40 mph
was located near McKenzie, moving northeast at 45 mph.

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

People in northeastern Carroll...southeastern Weakley...northern
Benton and Henry Counties should monitor this storm closely.

LAT...LON 3599 8857 3634 8859 3650 8818 3650 8806
      3647 8805 3644 8806 3643 8804 3637 8800
      3635 8798 3627 8794 3622 8795 3620 8794
TIME...MOT...LOC 0209Z 245DEG 41KT 3620 8847

Local storm report, Nov 5, 8:48 PM CST, 1 hour 56 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MEMPHIS TN
848 PM CST MON NOV 05 2018

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

0835 PM     HEAVY RAIN       SENATOBIA               34.62N  89.97W
11/05/2018  U0.00 INCH       TATE               MS   FIRE DEPT/RESCUE

            WATER POOLING TO A DEPTH OF 1-2 FEET AROUND THE FIRE
            STATION AND EXCESSIVE WATER CAUSING SOME ROAD PROBLEMS
            AROUND SENATOBIA.

&&

Local storm report, Nov 5, 9:04 PM CST, 1 hour 40 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MEMPHIS TN
904 PM CST MON NOV 05 2018

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

0840 PM     TSTM WND DMG     BIG SANDY               36.23N  88.09W
11/05/2018                   BENTON             TN   SOCIAL MEDIA

            SEVERAL TOPS OF TREES DOWN ON HIGHWAY 69 BETWEEN BIG
            SANDY AND CAMDEN.

&&

Local storm report, Nov 5, 9:24 PM CST, 1 hour 20 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MEMPHIS TN
924 PM CST MON NOV 05 2018

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

0900 PM     TSTM WND DMG     MARKS                   34.25N  90.27W
11/05/2018                   QUITMAN            MS   EMERGENCY MNGR

            A FEW TREES DOWN ON POWER LINES ON THE EAST SIDE OF
            MARKS.

&&

Local storm report, Nov 5, 9:27 PM CST, 1 hour 17 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MEMPHIS TN
927 PM CST MON NOV 05 2018

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

0900 PM     FLASH FLOOD      BATESVILLE              34.32N  89.94W
11/05/2018                   PANOLA             MS   EMERGENCY MNGR

            STREET FLOODING AROUND THE COUNTY.

&&

Local storm report, Nov 5, 9:36 PM CST, 1 hour 8 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MEMPHIS TN
936 PM CST MON NOV 05 2018

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

0915 PM     TSTM WND DMG     OXFORD                  34.36N  89.53W
11/05/2018                   LAFAYETTE          MS   EMERGENCY MNGR

            A FEW TREES DOWN AROUND THE CITY OF OXFORD.

&&

The office that day

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

Issued	Product	Office	Counties	Lasted
Nov 5, 7:03 PM CST	Special Weather Statement	MEG	Tipton	42 min
Nov 5, 8:09 PM CST	Special Weather Statement	MEG	Henry	51 min
Nov 5, 8:20 PM CST	Tornado Warning	MEG	Benton, Carroll, Henry	40 min
Nov 5, 9:12 PM CST	River Flood Warning	MEG	Crockett, Dyer, Lauderdale	26 hr
Nov 5, 9:53 PM CST	Areal Flood Advisory	MEG	Hardeman, McNairy	59 min
Nov 5, 10:28 PM CST	Tornado Warning	MEG	Hardin	8 min
Nov 6, 1:22 AM CST	Dense Fog Advisory	MEG	Benton, Carroll, Chester, Crockett, Decatur, Dyer and 14 more	7 hr
Nov 5, 7:52 PM CST	Tornado Warning	MEG	Coahoma, Panola, Quitman	38 min
Nov 5, 8:27 PM CST	Tornado Warning	MEG	Lafayette, Marshall, Panola	48 min
Nov 5, 9:06 PM CST	Tornado Warning	MEG	Benton, Lafayette, Marshall, Union	39 min
Nov 5, 9:08 PM CST	Tornado Warning	MEG	Tallahatchie, Yalobusha	52 min
Nov 5, 9:22 PM CST	Areal Flood Advisory	MEG	Lafayette, Panola	81 min
Nov 5, 9:40 PM CST	Tornado Warning	MEG	Alcorn, Benton, Prentiss, Tippah, Union	24 min
Nov 5, 9:43 PM CST	Tornado Warning	MEG	Calhoun, Lafayette, Pontotoc, Yalobusha	47 min
Nov 5, 10:11 PM CST	Areal Flood Advisory	MEG	Calhoun, Lafayette, Pontotoc, Yalobusha	114 min
Nov 5, 10:23 PM CST	Areal Flood Advisory	MEG	Benton, Lafayette, Marshall, Tippah, Union	50 min
Nov 5, 10:27 PM CST	Severe Thunderstorm Warning	MEG	Lee, Pontotoc, Union	48 min
Nov 5, 10:48 PM CST	Flash Flood Warning	MEG	Pontotoc	83 min
Nov 5, 10:51 PM CST	Areal Flood Advisory	MEG	Alcorn, Lee, Prentiss, Tishomingo	73 min
Nov 5, 11:01 PM CST	Tornado Warning	MEG	Tishomingo	11 min
Nov 5, 11:01 PM CST	Tornado Warning Considerable damage threat	MEG	Itawamba, Lee, Pontotoc	44 min
Nov 5, 11:22 PM CST	Tornado Warning Considerable damage threat	MEG	Itawamba, Lee, Prentiss, Tishomingo	34 min
Nov 5, 11:29 PM CST	Flash Flood Warning	MEG	Itawamba, Lee	74 min

Nearby

Severe Thunderstorm Warnings in Mississippi, 2018 Every severe thunderstorm warning 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.