Alert archive / Mississippi / Severe Thunderstorm Warnings in 2020

Severe Thunderstorm Warning 255, NWS Jackson, MS

May 27, 2020Neshoba County, Newton County, Mississippi

NWS Jackson, MS issued this severe thunderstorm warning at May 27, 2020, 4:55 PM CDT for Neshoba County, Newton County, Mississippi. It was in force for 35 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: May 27, 2020, 4:55 PM CDT (21:55 UTC)
Expired: May 27, 2020, 5:30 PM CDT
In force: 35 min
Issued by: NWS Jackson, MS
Area: Storm-based polygon
Hail: 0.88 in
Wind: 60.0 mph

Counties Neshoba County, MS, Newton County, MS

The radar

The Jackson/Brandon,MS radar (KDGX), 76 km from the middle of the area, began a volume at 21:57 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.

What was reported inside it

Time	Report	Where	Remark
May 27, 5:10 PM CDT	TSTM WND DMG	3 Se Sebastopol, MS	TREE ACROSS GREENFIELD RD.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

Did it verify

Verified. The Iowa Environmental Mesonet's Cow matched one storm report to this severe thunderstorm warning; the first came 15 minutes after it went out.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The nearest sounding before it

Jackson, MS (KJAN), launched 12:00Z, 9.9 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: 8 J/kg
Mixed-layer CIN: -254 J/kg
Mixed-layer LCL: 1461 m above ground
0-6 km bulk shear: 31 kt
0-1 km storm-relative helicity: 13 m²/s²
0-3 km storm-relative helicity: 31 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

395 
WUUS54 KJAN 272155
SVRJAN
MSC099-101-272230-
/O.NEW.KJAN.SV.W.0255.200527T2155Z-200527T2230Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Jackson MS
455 PM CDT Wed May 27 2020

The National Weather Service in Jackson has issued a

* Severe Thunderstorm Warning for...
  Northwestern Newton County in east central Mississippi...
  South central Neshoba County in east central Mississippi...

* Until 530 PM CDT.

* At 455 PM CDT, a severe thunderstorm was located near Steele, or
  near Prospect, moving northeast at 35 mph.

  HAZARD...60 mph wind gusts and nickel size hail.

  SOURCE...Radar indicated.

  IMPACT...Expect damage to roofs, siding, and trees.

* This severe thunderstorm will be near...
  Prospect around 505 PM CDT.
  Neshoba around 520 PM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3237 8932 3258 8932 3258 8922 3263 8914
      3254 8903
TIME...MOT...LOC 2155Z 231DEG 31KT 3252 8936 

HAIL...0.88IN
WIND...60MPH
 
$$

TW

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 Jackson, MS wrote its last area forecast discussion before this severe thunderstorm warning went out at May 27, 3:03 PM CDT, 1 hour 52 minutes earlier.

Area forecast discussion, May 27, 3:03 PM CDT, 1 hour 52 minutes before

Area Forecast Discussion
National Weather Service Jackson MS
303 PM CDT Wed May 27 2020

.DISCUSSION...

Tonight and Tomorrow:

The closed low is now located over western AR this afternoon with
surface convection spinning all around it. Some isolated severe
storms have developed within our CWA due to a weak trough located
over the LA coast. This feature is providing the lift needed to
aid in storm development along with about 35 kts of effective
bulk shear and some decent lapse rates. This kind of isolated to
scattered activity will continue into the evening before
dissipating. Overnight, there may be some isolated showers that
continue working their way around the upper low while temperatures
will fall into the mid 60s.

For Thursday, with the closed low a little closer overhead and
another disturbance set to move across the area, convection is again
anticipated. Although, the coverage will not be as widespread as
today as drier air aloft slides into the area. Instability will
not be as high but the effective bulk shear will remain high.
Therefore, a marginal risk for strong to severe storms will be in
place. The cold front associated with the closed low will also move
a little more into our area as well and will help to keep much of
the area in the low to mid 80s overall. /10/

Thursday night through Tuesday:

The persistent mid level cold core low over AR will begin opening
up and phasing with a northern stream wave moving into the OH
valley Thursday night as the leftover daytime convection
diminishes over the area. Though overall moisture will be on the
decrease Friday, convergence along trailing cold front will be
sufficient for scattered convection mainly during the heating of
the afternoon.

Drier air will slowly filter into the region Friday night increasing
during the day Saturday as dewpoints drop into the 50s. By Sunday,
diminishing cool air advection, ridging aloft and dry low level air
will promote increasingly efficient warming. In fact, a steady
increase in maximum temperatures from the upper 80s into the lower
90s is likely each day Sunday through Tuesday as heights aloft rise
and dry air remains spread over the area. /GG/

&&

.AVIATION...
18Z TAF discussion:
Currently all of our sites are VFR, but the scattered cloud cover
and storms will change this as storms move in and out of an area
this afternoon. Scattered convection will continue through the
afternoon and will drop flight categories at a site as it moves
through. A strong wind gust may be associated with any storm as
well. This convection will taper off this evening after 00Z with
some isolated showers/storms possible through the night. Some
lowering of ceilings and visibilities will be possible at sites in
east MS around 12Z Thursday, particularly PIB/HBG/GTR. Convection
on Thursday is again anticipated but is not expected to be as
widespread as today. /10/

&&

.PRELIMINARY POINT TEMPS/POPS...
Jackson       63  83  64  85 /  26  38  29  17
Meridian      63  86  64  85 /  37  32  34  26
Vicksburg     65  82  64  85 /  21  49  22  15
Hattiesburg   64  87  66  86 /  29  33  34  32
Natchez       64  81  64  84 /  14  40  24  16
Greenville    64  80  65  83 /  30  58  19  18
Greenwood     64  81  64  83 /  33  54  23  25

&&

.JAN WATCHES/WARNINGS/ADVISORIES...
MS...None.
LA...None.
AR...None.

&&

10/GG

Hazardous weather outlook, May 27, 2:33 PM CDT, 2 hours 22 minutes before

Hazardous Weather Outlook
National Weather Service Jackson MS
233 PM CDT Wed May 27 2020

ARZ074-075-LAZ007>009-015-016-023>026-MSZ018-019-025>030-032-
034>037-040>043-047-048-053-054-059>062-281945-
Ashley-Chicot-Morehouse-West Carroll-East Carroll-Richland-
Madison LA-Franklin LA-Catahoula-Tensas-Concordia-Bolivar-
Sunflower-Leflore-Grenada-Carroll-Montgomery-Webster-Clay-Choctaw-
Washington-Humphreys-Holmes-Attala-Issaquena-Sharkey-Yazoo-
Madison MS-Warren-Hinds-Claiborne-Copiah-Jefferson-Adams-
Franklin MS-Lincoln-
233 PM CDT Wed May 27 2020

This hazardous weather outlook is for portions of southeast
Arkansas, northeast Louisiana, central Mississippi, north central
Mississippi, south central Mississippi, southwest Mississippi,
and west central Mississippi.

.DAY ONE...Tonight and Thursday

SEVERE THUNDERSTORMS
THREAT...Marginal
TIMING...Thursday

Thursday, isolated severe thunderstorms are possible. Some
thunderstorms could produce damaging wind gusts and hail.

(https://www.weather.gov/images/jan/graphicast/2.png)

.DAYS TWO THROUGH SEVEN...Thursday night through Tuesday

The probability for widespread hazardous weather is low.

.SPOTTER CALL TO ACTION STATEMENT...
The activation of storm spotters, HAM radio operators, and
emergency management personnel in support of severe weather
operations may be needed for portions of the region Thursday.

MSZ031-033-038-039-044>046-049>052-055>058-063>066-072>074-281945-
Lowndes-Oktibbeha-Winston-Noxubee-Leake-Neshoba-Kemper-Rankin-
Scott-Newton-Lauderdale-Simpson-Smith-Jasper-Clarke-Lawrence-
Jefferson Davis-Covington-Jones-Marion-Lamar-Forrest-
233 PM CDT Wed May 27 2020

This hazardous weather outlook is for portions of central
Mississippi, east central Mississippi, northeast Mississippi,
south central Mississippi, and southeast Mississippi.

.DAY ONE...Tonight and Thursday

SEVERE THUNDERSTORMS
THREAT...Marginal
TIMING...This afternoon and again Thursday

Tonight, isolated severe storms will linger into the evening.
Thursday, isolated severe thunderstorms are again possible. Some
thunderstorms could produce damaging wind gusts and hail.

(https://www.weather.gov/images/jan/graphicast/1.png)
(https://www.weather.gov/images/jan/graphicast/2.png)

.DAYS TWO THROUGH SEVEN...Thursday night through Tuesday

The probability for widespread hazardous weather is low.

.SPOTTER CALL TO ACTION STATEMENT...
The activation of storm spotters, HAM radio operators, and
emergency management personnel in support of severe weather
operations may be needed for portions of the region remainder
of the afternoon and Thursday.

10

&&

...HAZARD LEGEND...

*SEVERE THUNDERSTORMS*
High...Significant severe thunderstorms and tornadoes are
 likely with strong or violent tornadoes possible.
Moderate...Significant severe thunderstorms and tornadoes are
 likely with strong tornadoes possible.
Enhanced...Severe thunderstorms are likely and tornadoes are
 possible.
Slight...Severe thunderstorms and tornadoes are possible.
Marginal...Isolated severe thunderstorms are possible.

...USEFUL WEATHER WEB PAGES (URLS)...

NWS JAN Home page...
   https://www.weather.gov/jan
Stay Aware, Stay Safe NWS JAN Briefing Page...
   https://www.weather.gov/jan/safe
Latest Weather Briefing...
   https://www.weather.gov/jan/weather_briefing

Find NWS JAN on Facebook...
   https://www.facebook.com/NWSJacksonMS
Follow NWS JAN on Twitter...
   @NWSJacksonMS
Follow NWS JAN on Youtube...
   https://www.youtube.com/user/NWSJacksonMiss

...ADDITIONAL URLS FOR SEVERE WEATHER ISSUES...

Storm Prediction Center (SPC)...
   https://www.spc.noaa.gov/
Meso Analysis...
   https://www.spc.noaa.gov/exper/mesoanalysis/
Day 1 through 3 Outlooks...
   https://www.spc.noaa.gov/products/outlook/
Storm Reports...
   https://www.spc.noaa.gov/climo/online/

In the hours before

Special weather statement, May 27, 4:44 PM CDT, 11 minutes before

Special Weather Statement
National Weather Service Jackson MS
444 PM CDT Wed May 27 2020

MSZ064-065-272230-
Jefferson Davis MS-Covington MS-
444 PM CDT Wed May 27 2020

...A STRONG THUNDERSTORM WILL AFFECT NORTHWESTERN COVINGTON AND NORTH
CENTRAL JEFFERSON DAVIS COUNTIES UNTIL 530 PM CDT...

At 444 PM CDT, Meteorologists were tracking a strong thunderstorm
over Carson, or 14 miles west of Collins, moving north at 25 mph.

Nickel size hail and wind gusts up to 50 mph will be possible with
this storm.

This strong thunderstorm will be near...
  Lone Star around 500 PM CDT.
  Clem around 510 PM CDT.
  Mount Olive around 525 PM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

High winds can bring down trees and large limbs resulting in serious
injury or property damage. Exercise extreme caution when outdoors
during such strong winds...and be especially aware of older trees.

&&

LAT...LON 3160 8973 3161 8986 3177 8991 3178 8962
      3157 8968
TIME...MOT...LOC 2144Z 184DEG 20KT 3156 8979

TW

Special weather statement, May 27, 4:48 PM CDT, 7 minutes before

Special Weather Statement
National Weather Service Jackson MS
448 PM CDT Wed May 27 2020

MSZ029-272245-
Webster MS-
448 PM CDT Wed May 27 2020

...A STRONG THUNDERSTORM WILL AFFECT NORTHWESTERN WEBSTER COUNTY
UNTIL 545 PM CDT...

At 448 PM CDT, Meteorologists were tracking a strong thunderstorm
near Lodi, or 9 miles northeast of Winona, moving northeast at 20
mph.

Nickel size hail and wind gusts up to 50 mph will be possible with
this storm.

This strong thunderstorm will be near...
  Embry around 530 PM CDT.
  Bellefontaine around 535 PM CDT.

Other locations impacted by this storm include Walthall.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

High winds can bring down trees and large limbs resulting in serious
injury or property damage. Exercise extreme caution when outdoors
during such strong winds...and be especially aware of older trees.

&&

LAT...LON 3363 8918 3351 8951 3372 8951 3372 8919
TIME...MOT...LOC 2148Z 229DEG 18KT 3356 8958

TW

Local storm report, May 27, 4:51 PM CDT, 4 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSON MS
451 PM CDT WED MAY 27 2020

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

0440 PM     HAIL             1 SW WINONA             33.48N 89.73W
05/27/2020  E0.25 INCH       MONTGOMERY         MS   PUBLIC

            PEA SIZE HAIL REPORTED IN WINONA.

&&

JNE

Local storm report, May 27, 4:52 PM CDT, 3 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSON MS
452 PM CDT WED MAY 27 2020

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

0410 PM     TSTM WND DMG     1 ESE DUCK HILL         33.63N 89.70W
05/27/2020                   MONTGOMERY         MS   LAW ENFORCEMENT

            A TREE WAS BLOWN DOWN ALONG US HIGHWAY 51
            AND BLOCKING BOTH LANES OF TRAFFIC IN DUCK
            HILL.

&&

NF

Local storm report, May 27, 4:53 PM CDT, 2 minutes before

PRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE JACKSON MS
453 PM CDT WED MAY 27 2020

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

0327 PM     HAIL             TCHULA                  33.18N 90.22W
05/27/2020  E1.50 INCH       HOLMES             MS   LAW ENFORCEMENT

            CORRECTS PREVIOUS HAIL REPORT FROM TCHULA.
            HAIL UP TO THE SIZE OF PING PONG BALLS FELL
            AT THE 911 CENTER.

&&

NF

Local storm report, May 27, 4:55 PM CDT, 0 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSON MS
455 PM CDT WED MAY 27 2020

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

0330 PM     TSTM WND DMG     3 SE JAN AIRPORT        32.29N 90.05W
05/27/2020                   RANKIN             MS   PUBLIC

            TREES AND POWER LINES DOWN ON LA GAIL DR IN
            PEARL.

&&

JNE

The office that day

Everything else NWS Jackson, MS issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 26, 8:38 PM CDT	Special Weather Statement	JAN	Holmes	52 min
May 27, 1:22 AM CDT	Special Weather Statement	JAN	Copiah	23 min
May 27, 1:53 AM CDT	Special Weather Statement	JAN	Hinds	52 min
May 27, 2:05 AM CDT	Special Weather Statement	JAN	Lincoln	40 min
May 27, 12:32 PM CDT	Special Weather Statement	JAN	Forrest	28 min
May 27, 12:35 PM CDT	Special Weather Statement	JAN	Covington	25 min
May 27, 12:42 PM CDT	Severe Thunderstorm Warning	JAN	Forrest	48 min
May 27, 1:47 PM CDT	Special Weather Statement	JAN	Copiah	28 min
May 27, 2:09 PM CDT	Severe Thunderstorm Warning	JAN	Copiah	51 min
May 27, 2:23 PM CDT	Special Weather Statement	JAN	Humphreys	37 min
May 27, 2:26 PM CDT	Severe Thunderstorm Warning	JAN	Humphreys, Yazoo	26 min
May 27, 2:32 PM CDT	Severe Thunderstorm Warning	JAN	Copiah, Hinds, Rankin, Simpson	58 min
May 27, 2:35 PM CDT	Special Weather Statement	JAN	Coahoma	25 min
May 27, 2:40 PM CDT	Special Weather Statement	JAN	Lincoln	50 min
May 27, 2:41 PM CDT	Special Weather Statement	JAN	Humphreys	64 min
May 27, 2:59 PM CDT	Special Weather Statement	JAN	Simpson	46 min
May 27, 3:02 PM CDT	Special Weather Statement	JAN	Rankin	28 min
May 27, 3:06 PM CDT	Severe Thunderstorm Warning	JAN	Hinds, Madison, Rankin	54 min
May 27, 3:08 PM CDT	Severe Thunderstorm Warning	JAN	Rankin, Simpson	37 min
May 27, 3:12 PM CDT	Special Weather Statement	JAN	Holmes	33 min
May 27, 3:17 PM CDT	Severe Thunderstorm Warning	JAN	Holmes, Humphreys	43 min
May 27, 3:27 PM CDT	Special Weather Statement	JAN	Simpson	33 min
May 27, 3:34 PM CDT	Severe Thunderstorm Warning	JAN	Carroll	25 min
May 27, 3:38 PM CDT	Severe Thunderstorm Warning	JAN	Leake, Madison, Rankin, Scott	67 min
May 27, 3:43 PM CDT	Severe Thunderstorm Warning	JAN	Rankin, Simpson	47 min
May 27, 3:57 PM CDT	Severe Thunderstorm Warning	JAN	Marion	28 min
May 27, 4:01 PM CDT	Severe Thunderstorm Warning	JAN	Rankin, Scott, Smith	44 min
May 27, 4:09 PM CDT	Severe Thunderstorm Warning	JAN	Carroll, Grenada, Montgomery	67 min
May 27, 4:10 PM CDT	Severe Thunderstorm Warning	JAN	Jefferson Davis	50 min
May 27, 4:25 PM CDT	Severe Thunderstorm Warning	JAN	Marion	35 min
May 27, 4:28 PM CDT	Severe Thunderstorm Warning	JAN	Leake, Neshoba, Scott	62 min
May 27, 4:31 PM CDT	Special Weather Statement	JAN	Simpson	29 min
May 27, 4:32 PM CDT	Severe Thunderstorm Warning	JAN	Scott	43 min
May 27, 4:35 PM CDT	Special Weather Statement	JAN	Lincoln	40 min
May 27, 4:44 PM CDT	Special Weather Statement	JAN	Jefferson Davis	46 min
May 27, 4:47 PM CDT	Severe Thunderstorm Warning	JAN	Covington, Jefferson Davis, Simpson	43 min
May 27, 4:48 PM CDT	Special Weather Statement	JAN	Webster	57 min
May 27, 4:58 PM CDT	Special Weather Statement	JAN	Smith	32 min
May 27, 5:12 PM CDT	Severe Thunderstorm Warning	JAN	Kemper, Leake, Neshoba, Winston	81 min
May 27, 5:35 PM CDT	Special Weather Statement	JAN	Smith	40 min
May 27, 5:36 PM CDT	Special Weather Statement	JAN	Lawrence	39 min
May 27, 5:49 PM CDT	Special Weather Statement	JAN	Webster	41 min
May 27, 5:52 PM CDT	Special Weather Statement	JAN	Smith	53 min
May 27, 5:55 PM CDT	Severe Thunderstorm Warning	JAN	Montgomery, Webster	26 min
May 27, 6:03 PM CDT	Severe Thunderstorm Warning	JAN	Kemper, Noxubee, Winston	87 min
May 27, 6:22 PM CDT	Special Weather Statement	JAN	Montgomery	38 min
May 27, 6:35 PM CDT	Special Weather Statement	JAN	Clarke	25 min

Nearby

Severe Thunderstorm Warnings in Mississippi, 2020 Every severe thunderstorm warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.