Alert archive / Louisiana / Special Weather Statements in 2018

Special Weather Statement, NWS Jackson, MS

February 24, 2018Franklin Parish, Madison Parish, Richland Parish, Louisiana

NWS Jackson, MS issued this special weather statement at Feb 24, 2018, 10:30 PM CST for Franklin Parish, Madison Parish, Richland Parish, Louisiana. It was in force for 45 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
Feb 24, 2018, 10:30 PM CST (04:30 UTC)
Expired
Feb 24, 2018, 11:15 PM CST
In force
45 min
Issued by
NWS Jackson, MS

Counties Franklin Parish, LA, Madison Parish, LA, Richland Parish, LA

The radar

The Jackson/Brandon,MS radar (KDGX), 161 km from the middle of the area, began a volume at 04:33 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

Jackson, MS (KJAN), launched 00:00Z, 4.5 hours before the alert went out and 152 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-pSkew-T log-p diagram, Jackson, MS at 00:00Z on 2018-02-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 170 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Jackson, MS at 00:00Z on 2018-02-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 177 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
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
170 J/kg
Mixed-layer CIN
-11 J/kg
Mixed-layer LCL
1404 m above ground
0-6 km bulk shear
51 kt
0-1 km storm-relative helicity
177 m²/s²
0-3 km storm-relative helicity
246 m²/s²
Significant tornado parameter
0.1
Supercell composite
0.7

Open this sounding in Storm Lab

The text

As transmitted.

181 
WWUS84 KJAN 250430
SPSJAN

Special Weather Statement
National Weather Service Jackson MS
1030 PM CST SAT FEB 24 2018
 
LAZ008-009-015-016-023-250515-
Richland LA-Madison LA-East Carroll LA-West Carroll LA-Franklin LA-
1030 PM CST SAT FEB 24 2018

...A LINE OF GUSTY THUNDERSTORM WILL AFFECT SOUTHWESTERN EAST 
CARROLL...MADISON...RICHLAND...SOUTHWESTERN WEST CARROLL AND 
FRANKLIN PARISHES UNTIL 1115 PM CST...

At 1029 PM CST, Meteorologists were tracking a line of strong 
thunderstorms extending from near Darnell to 6 miles northwest of 
Buckner. Movement was southeast at 25 mph.

Winds in excess of 40 mph will be possible with these storms.

Strong thunderstorms will be near...
  Darnell around 1035 PM CST. 
  Warden around 1040 PM CST. 
  Monticello around 1045 PM CST. 
  Waverly around 1055 PM CST. 
  Mangham and Tendal around 1100 PM CST. 
  Liddieville and Sondheimer around 1110 PM CST. 
  Tallulah, Winnsboro, Mansford and Omega around 1115 PM CST. 

Other locations impacted by these storms include Baskin, Richmond and
Epps.

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 3238 9201 3246 9194 3271 9146 3252 9110
      3248 9112 3246 9109 3243 9096 3220 9141
      3220 9149 3216 9149 3197 9189 3207 9193
      3209 9187 3212 9187 3217 9190 3217 9198
      3220 9198 3219 9201 3225 9199 3228 9203
TIME...MOT...LOC 0429Z 309DEG 24KT 3264 9148 3236 9202 

$$

BYB

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 Jackson, MS wrote its last area forecast discussion before this special weather statement went out at Feb 24, 7:58 PM CST, 2 hours 32 minutes earlier.

Area forecast discussion, Feb 24, 7:58 PM CST, 2 hours 32 minutes before
Area Forecast Discussion...UPDATED
National Weather Service Jackson MS
758 PM CST Sat Feb 24 2018

...MAIN SEVERE WEATHER AND HEAVY RAIN POTENTIAL FOR THE REST OF THE
NIGHT CONCENTRATING FARTHER NORTH...

.UPDATE...
Updated for evening discussion.

&&

.DISCUSSION...

Update discussion for the remainder of the night:

Convection coming into our northwest Arklamiss Delta zones is
really struggling to remain severe, in at least a widespread
fashion, and the Storm Prediction Center has lowered the risk of
severe weather in portions of the forecast area. The previous
ENHANCED risk has been pulled entirely north of our region,
although a SLIGHT risk still covers many northern zones into the
early morning hours as a squall line of showers and thunderstorms
progresses in from the east.

Despite the warmth, moisture near the ground has not been
sufficient to really break the thermal cap a few thousand feet
above the ground and has kept worrisome pre-frontal supercells
from occurring. In the past few hours there have been some
shallow, rotating pre-frontal cells in northern zones near the
I-55 corridor but these cells have diminished before getting
robust and slowly diminishing instability gives confidence any
deep convection should mainly be confined to the aforementioned
squall line along and just in advance of the incoming cold front.
Of course the squall line itself could produce severe weather but
the trends of prime juxtaposition of shear and instability well to
our north will likely continue, and in fact low level shear
should slowly weaken in our area through the night. But even
considering all this there is still enough residual instability
and shear to keep a severe concern in mentioned northern zones
into the early morning hours (or at least until the main
convective line passes). The main risk with any severe activity
will be damaging wind gusts, although in northern zones a stray
tornado still cannot be ruled out. Farther south (mainly along
and south of the I-20 corridor) we will maintain a low-end
MARGINAL risk for severe weather where some isolated reports of
severe weather due to damaging winds gusts cannot yet be ruled
out. Tornadoes are even less likely here but cannot quite yet be
determined to be absolutely no threat. Graphics and HWO are being
updated to reflect the latest thinking.

Of course pockets of heavy rain are still anticipated tonight,
especially in the far northwest Arklamiss Delta where residual
saturated conditions will make flash flooding somewhat easy to
achieve. Farther southeast the prospect of overall less vigorous
convection is also bringing down the risk for flash flooding
issues in most other areas, although a limited risk in the
flooding category still seems valid in the graphics and HWO.

Looking ahead, we anticipate the shallow boundary to push
southeast through the whole region by 7 to 8 am with another
incoming shortwave tomorrow likely picking up rain and embedded
thunderstorms (of a more isentropic nature) as we go through
Sunday. There is a MARGINAL risk in far southeastern MS zones of
an isolated severe storm tomorrow. This risk is mainly conditional
on uncertainty on exactly where the front will stall; if it
stalls in the morning just south of HBG then it opens up the
possibility of the boundary inflecting back north into the Pine
Belt by afternoon. If the latter were to happen then a
juxtaposition of decent shear and low level instability may be
able to continue a low end severe weather risk north of the coast.
/BB/

Prior discussion below:

Rest of Today into Sunday...Warm conditions and gusty southerly will
continue across the forecast area for the remainder of this
afternoon.  With wind gusts reaching upwards of 40-45 mph in the
Delta this afternoon and evening, while sustained between 25-30 mph,
a Wind Advisory remains in effect until midnight tonight.  Some
scattered showers, and perhaps an isolated thunderstorm or two, will
be possible. However, most of the CWA will remain dry until the
evening and overnight hours.

The potential for severe storms will increase from west to east this
evening, persisting through the overnight hours, before finally
coming to an end early Sunday morning.  This will come about as a
strong storm system lifts northeast out of the Southern Plains,
across the Mid-South region, and into the Ohio River Valley over the
next 24 hours.  This will drag a strong cold front into the region,
where a warm and unstable airmass resides.  With sufficient deep-
layer wind shear and adequate instability, some storms that develop
along, and possibly just ahead of, the front could be severe.

With high-res model data in agreement, it appears this severe
potential will come in the form of a squall-line of storms, where
both breaks in the line and/or bowing segments are possible.  This
line currently looks most defined, due to better forcing, across
the northern half of the CWA, but specifically in the vicinity of
the Highway 82 corridor as it races east across the region. Damaging
winds will be the primary concern with these storms, but some
tornados will also be possible. Currently, the best potential for
such storms is in the Delta region, or generally along and north of
a Bastrop, LA to Grenada, MS line, where an "Enhanced" risk of
severe storms exists. This is where severe storms are expected.
South of this line, but staying north of a Jonesville, LA to
Jackson, MS to DeKalb, MS line, a "Slight" risk for severe storms
exists and severe storms are possible.  Then south of this line, and
essentially covering the remaining east and southern portions of the
forecast area, a "Marginal" risk for isolated severe storms exists.

In addition to all of this, the potential for heavy rain, potentially
resulting in flash flooding and additional river flooding, will
continue across mainly northwestern portions of the CWA this evening
and into early Sunday morning.  With an additional one to two inches
of rain expected over already saturated soils from recent heavy
rains, localized flash flooding could become a concern across the
Delta region once again.

The potential for severe storms will quickly come to an end after
the leading edge of the squall-line pushes through an area.  Also,
the further east this system shifts across the ArkLaMiss, the
forcing associated with it will lift further north and out of our
neck of the woods.  Thus, the overall severe potential should wane
through early Sunday morning, when the front should reside in the
vicinity of a Columbus, MS to Brookhaven, MS line.

Winds will then shift out of the north behind the front, with cooler
drier air beginning to advect south into the region.  The front will
lose its upper level support, and essentially stall across mainly
the southern half of the CWA Sunday morning.  Though severe storms
are not expected with this, another disturbance will lift northeast
in the vicinity of the front and through the forecast area late
Sunday afternoon.  This will cause rain to once again overspread the
forecast area from southwest to northeast late in the day.  Again,
although an isolated storm of two will be possible Sunday afternoon,
these storms are currently not expected to be severe.  However, some
heavy rain could lead to the ponding of water on area roads, as well
as in low-lying and poor drainage areas, as well as further
aggravate already high rivers across much of the area. /19/

Sunday night through Friday...Sunday evening PWATs will still be
around an inch and a half when a shortwave within our southwest
flow aloft will lead to redevelopment of showers and thunderstorms
with heavy rainfall to spread back to the north across our CWA. A
weak surface low may also develop along the old frontal boundary
and track east just south of our CWA. Additional rainfall amounts
of one to two inches will be possible Sunday night into Monday
morning before drier air moves into our area in the wake of the
shortwave. Dry weather is expected by noon Monday and will
continue Monday night but WAA will increase deep moisture and lead
to the old cold front returning north as a warm front Tuesday. This
will occur in response to a closed low over Southern California
Tuesday morning that will swing across the desert southwest
Tuesday night and lift over the Southern Plains Wednesday. Daytime
heating Tuesday will contribute to convective development from
the southwest by afternoon. Inch and a half PWATs will be back
over our CWA Wednesday afternoon but the bulk of the heavy rain is
expected to fall just north of Highway 82 near the warm front
until Wednesday night when the cold front will drop into our CWA.
Windy conditions will likely develop over our west Wednesday
afternoon and evening ahead of the front. There are some timing
differences with the front but it should move into our northwest
most zones prior to midnight and then clear our CWA by noon
Thursday. Cooler and drier weather is expected Thursday night
through Friday night. /22/

&&

.AVIATION...
00Z TAF discussion:

Patchy MVFR ceilings are anticipated this evening due to low
ceilings with a majority of the region this evening experiencing
scattered showers and isolated thunderstorms. However, up toward
GLH/GWO a solid line of showers and thunderstorms is expected to
come through before midnight with these storms producing brief IFR
conditions and potential for very gusty winds. Expect these storms
to eventually make it east to HKS/JAN/GTR/CBM/NMM/MEI from
midnight through the early morning hours, although the intensity
of the storms will likely decrease a bit by that point. Expect low
clouds in the MVFR to IFR range to increase late tonight through
midday tomorrow as widespread showers and embedded thunderstorms
enter back into the picture from the southwest. /BB/

&&

.PRELIMINARY POINT TEMPS/POPS...
Jackson       58  61  51  70 /  92  76  90  13
Meridian      58  62  54  70 /  90  77  94  42
Vicksburg     56  59  49  69 /  92  78  82   8
Hattiesburg   64  67  57  71 /  66  89  95  55
Natchez       58  63  52  70 /  94  91  89  10
Greenville    53  58  46  66 /  99  37  49   5
Greenwood     54  60  47  68 /  94  43  72   7

&&

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

&&

19/22/BB
Hazardous weather outlook, Feb 24, 8:30 PM CST, 2 hours before
Hazardous Weather Outlook...UPDATED
National Weather Service Jackson MS
830 PM CST Sat Feb 24 2018

ARZ074-075-LAZ007-MSZ018-019-025>027-034-260230-
Ashley-Chicot-Morehouse-Bolivar-Sunflower-Leflore-Grenada-Carroll-
Washington-
830 PM CST Sat Feb 24 2018

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

.DAY ONE...The rest of Tonight and Sunday

SEVERE THUNDERSTORMS
THREAT...Slight
TIMING...remainder of tonight

FLOODING
THREAT...Elevated
TIMING...remainder of tonight

NON-THUNDERSTORM WINDS
THREAT...Limited
TIMING...remainder of tonight

Severe thunderstorms are possible tonight, mainly through
midnight. The main risk will be damaging wind gusts, although a
tornado cannot be ruled out.

In addition, locally heavy rainfall tonight of 1 to 2 inches could
result in at least a few incidents of flash flooding, considering
the already very saturated state of the ground.

Also, expect gusty southerly winds up to 30 mph to continue
tonight ahead of the cold front pushing in from the northwest.

(www.weather.gov/images/jan/graphicast/image1.png)
(www.weather.gov/images/jan/graphicast/image3.png)

.DAYS TWO THROUGH SEVEN...Sunday night through Friday

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 the rest
of tonight.

LAZ015-016-023-MSZ030-032-033-036-037-040-042-260230-
Richland-Madison LA-Franklin LA-Clay-Choctaw-Oktibbeha-Holmes-
Attala-Issaquena-Yazoo-
830 PM CST Sat Feb 24 2018

This hazardous weather outlook is for portions of northeast
Louisiana, central Mississippi, northeast Mississippi, and west
central Mississippi.

.DAY ONE...The rest of Tonight and Sunday

FLOODING
THREAT...Limited
TIMING...remainder of tonight through Sunday

SEVERE THUNDERSTORMS
THREAT...Slight
TIMING...remainder of tonight

NON-THUNDERSTORM WINDS
THREAT...Limited
TIMING...remainder of tonight

Severe thunderstorms are possible tonight. The main risk will be
damaging wind gusts, although a tornado cannot be ruled out.

In addition, locally heavy rainfall tonight of 1 to 2 inches will
bring a risk of flash flooding, especially considering the
nearly-saturated state of the ground in many areas. Potential for
additional locally heavy downpours by midday to afternoon tomorrow
will extend the possibility of flash flooding through much of the
day tomorrow.

Also, expect gusty southerly winds up to 30 mph to continue
tonight ahead of the cold front pushing in from the northwest.

(www.weather.gov/images/jan/graphicast/image1.png)
(www.weather.gov/images/jan/graphicast/image2.png)
(www.weather.gov/images/jan/graphicast/image3.png)

.DAYS TWO THROUGH SEVEN...Sunday night through Friday

Flooding will remain possible for much of the region into Sunday
night as the potentially for locally heavy rain continues.

(www.weather.gov/images/jan/graphicast/image2.png)

.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 the rest
of tonight.

MSZ028-029-260230-
Montgomery-Webster-
830 PM CST Sat Feb 24 2018

This hazardous weather outlook is for portions of north central
Mississippi.

.DAY ONE...The rest of Tonight and Sunday

SEVERE THUNDERSTORMS
THREAT...Slight
TIMING...remainder of tonight

FLOODING
THREAT...Limited
TIMING...remainder of tonight

NON-THUNDERSTORM WINDS
THREAT...Limited
TIMING...remainder of tonight

Severe thunderstorms are possible tonight. The main risk will be
damaging wind gusts, although a tornado cannot be ruled out.

In addition, locally heavy rainfall tonight of 1 to 2 inches will
bring a risk of flash flooding, especially considering the
nearly-saturated state of the ground in many areas.

Also, expect gusty southerly winds up to 30 mph to continue
tonight ahead of the cold front pushing in from the northwest.

(www.weather.gov/images/jan/graphicast/image1.png)
(www.weather.gov/images/jan/graphicast/image3.png)

.DAYS TWO THROUGH SEVEN...Sunday night through Friday

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 the rest
of tonight.

LAZ024>026-MSZ031-038-039-043>057-059>063-260230-
Catahoula-Tensas-Concordia-Lowndes-Winston-Noxubee-Madison MS-
Leake-Neshoba-Kemper-Warren-Hinds-Rankin-Scott-Newton-Lauderdale-
Claiborne-Copiah-Simpson-Smith-Jasper-Jefferson-Adams-Franklin MS-
Lincoln-Lawrence-
830 PM CST Sat Feb 24 2018

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

.DAY ONE...The rest of Tonight and Sunday

FLOODING
THREAT...Limited
TIMING...remainder of tonight through Sunday

SEVERE THUNDERSTORMS
THREAT...Marginal
TIMING...remainder of tonight

NON-THUNDERSTORM WINDS
THREAT...Limited
TIMING...remainder of tonight

Isolated severe thunderstorms are possible tonight. The main risk
will be damaging wind gusts.

In addition, locally heavy rainfall tonight of 1 to 2 inches will
bring a risk of flash flooding, especially considering the
nearly-saturated state of the ground in many areas. Potential for
additional locally heavy downpours by midday to afternoon tomorrow
will extend the possibility of flash flooding through much of the
day tomorrow.

Also, expect gusty southerly winds up to 30 mph to continue
tonight ahead of the cold front pushing in from the northwest.

(www.weather.gov/images/jan/graphicast/image1.png)
(www.weather.gov/images/jan/graphicast/image2.png)
(www.weather.gov/images/jan/graphicast/image3.png)

.DAYS TWO THROUGH SEVEN...Sunday night through Friday

Flooding will remain possible for much of the region into Sunday
night as the potentially for locally heavy rain continues.

(www.weather.gov/images/jan/graphicast/image2.png)

.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 the rest
of tonight.

LAZ008-009-MSZ035-041-260230-
West Carroll-East Carroll-Humphreys-Sharkey-
830 PM CST Sat Feb 24 2018

This hazardous weather outlook is for portions of northeast
Louisiana, central Mississippi, and west central Mississippi.

.DAY ONE...The rest of Tonight and Sunday

FLOODING
THREAT...Elevated
TIMING...Mainly remainder of tonight

SEVERE THUNDERSTORMS
THREAT...Slight
TIMING...remainder of tonight

NON-THUNDERSTORM WINDS
THREAT...Limited
TIMING...remainder of tonight

Severe thunderstorms are possible tonight. The main risk will be
damaging wind gusts, although a tornado cannot be ruled out.

In addition, locally heavy rainfall tonight of 1 to 2 inches will
bring a risk of flash flooding, especially tonight considering
the nearly-saturated state of the ground in many areas. Potential
for additional locally heavy downpours by midday to afternoon
tomorrow will extend the possibility of flash flooding through
much of the day tomorrow.

Also, expect gusty southerly winds up to 30 mph to continue
tonight ahead of the cold front pushing in from the northwest.

(www.weather.gov/images/jan/graphicast/image1.png)
(www.weather.gov/images/jan/graphicast/image2.png)
(www.weather.gov/images/jan/graphicast/image3.png)

.DAYS TWO THROUGH SEVEN...Sunday night through Friday

Flooding will remain possible for much of the region into Sunday
night as the potentially for locally heavy rain continues.

(www.weather.gov/images/jan/graphicast/image2.png)

.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 the rest
of tonight.

MSZ058-064>066-072>074-260230-
Clarke-Jefferson Davis-Covington-Jones-Marion-Lamar-Forrest-
830 PM CST Sat Feb 24 2018

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

.DAY ONE...The rest of Tonight and Sunday

SEVERE THUNDERSTORMS
THREAT...Marginal
TIMING...remainder of tonight through Sunday

FLOODING
THREAT...Limited
TIMING...remainder of tonight through Sunday

NON-THUNDERSTORM WINDS
THREAT...Limited
TIMING...remainder of tonight

Isolated severe thunderstorms are possible tonight and again
during the midday and afternoon hours tomorrow. The main risk
will be damaging wind gusts.

In addition, locally heavy rainfall tonight of 1 to 2 inches will
bring a risk of flash flooding, especially considering the
nearly-saturated state of the ground in many areas. Potential for
additional locally heavy downpours by midday to afternoon tomorrow
will extend the possibility of flash flooding through much of the
day tomorrow.

Also, expect gusty southerly winds up to 30 mph to continue
tonight ahead of the cold front pushing in from the northwest.

(www.weather.gov/images/jan/graphicast/image1.png)
(www.weather.gov/images/jan/graphicast/image2.png)
(www.weather.gov/images/jan/graphicast/image3.png)

.DAYS TWO THROUGH SEVEN...Sunday night through Friday

Flooding will remain possible for much of the region into Sunday
night as the potentially for locally heavy rain continues.

(www.weather.gov/images/jan/graphicast/image2.png)

.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 rest of
tonight through Sunday.

50

&&

...HAZARD LEGEND...

*SEVERE THUNDERSTORMS*
High...Significant severe thunderstorms are expected.
Moderate...Severe storms expected with significant
 severe weather possible.
Enhanced...Severe storms expected.
Slight...Severe storms possible.
Marginal...Isolated severe storms possible.

*FLOODING*
Extreme...Confident in significant flooding.
Significant...Significant flooding possible.
Elevated...Confident in flooding.
Limited...Flooding possible.

*NON-THUNDERSTORM WINDS*
Extreme...Sustained winds 50 mph or greater or wind gusts 65 mph
 or greater.
Significant...Sustained winds 40-49 mph or wind gusts 58-64 mph.
Elevated...Sustained winds 30-39 mph or wind gusts 45-57 mph.
Limited...Sustained winds 20-29 mph or wind gusts 30 to 44 mph.

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

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

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

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

Storm Prediction Center (SPC)...
   www.spc.noaa.gov/
Meso Analysis...
   www.spc.noaa.gov/exper/mesoanalysis/
Day 1 through 3 Outlooks...
   www.spc.noaa.gov/products/outlook/
Storm Reports...
   www.spc.noaa.gov/climo/online/
...ADDITIONAL URLS FOR FLOODING ISSUES...

Current Watches and Warnings...
   www.weather.gov/jan/safe_HeavyRain

Observed Precipitation Images...
   www.weather.gov/jan/precipmaps

River Forecast Center...
   www.weather.gov/lmrfc/
Significant River Flood Outlook...
   www.wpc.ncep.noaa.gov/nationalfloodoutlook/index.html
Day 1 through 3 Excessive Rainfall...
   www.wpc.ncep.noaa.gov/qpf/excess_rain.shtml
Excessive Rainfall Discussion...
   www.wpc.ncep.noaa.gov/discussions/qpferd.html
Day 1 through 7 QPF...
   www.wpc.ncep.noaa.gov/qpf/qpf2.shtml
QPF Discussion...
   www.wpc.ncep.noaa.gov/discussions/qpfpfd.html

In the hours before

Special weather statement, Feb 24, 5:19 PM CST, 5 hours 11 minutes before
Special Weather Statement
National Weather Service Jackson MS
519 PM CST SAT FEB 24 2018

MSZ027-036-242345-
Carroll MS-Holmes MS-
519 PM CST SAT FEB 24 2018

...A STRONG THUNDERSTORM WILL AFFECT NORTHEASTERN HOLMES AND
SOUTHWESTERN CARROLL COUNTIES UNTIL 545 PM CST...

At 519 PM CST, Meteorologists were tracking a strong thunderstorm
near Tchula, or 12 miles northeast of Thornton, moving northeast at
45 mph.

Dime size hail and winds in excess of 40 mph will be possible with
this storm.

This strong thunderstorm will be near...
  Black Hawk and Seven Pines around 535 PM CST.
  Emory around 540 PM CST.
  Coila around 545 PM CST.

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.

This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

&&

LAT...LON 3312 9017 3320 9025 3345 9002 3324 8977
TIME...MOT...LOC 2319Z 227DEG 37KT 3318 9016

NF
Special weather statement, Feb 24, 5:21 PM CST, 5 hours 9 minutes before
Special Weather Statement
National Weather Service Jackson MS
521 PM CST SAT FEB 24 2018

MSZ042-242345-
Yazoo MS-
521 PM CST SAT FEB 24 2018

...A STRONG THUNDERSTORM WILL AFFECT NORTHEASTERN YAZOO COUNTY UNTIL
545 PM CST...

At 521 PM CST, Meteorologists were tracking a strong thunderstorm
over Little Yazoo, or 9 miles south of Yazoo City, moving northeast
at 40 mph.

Dime size hail and winds in excess of 40 mph will be possible with
this storm.

This strong thunderstorm will be near...
  Benton around 535 PM CST.

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.

This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

&&

LAT...LON 3289 9000 3288 8997 3286 8998 3285 8999
      3266 9036 3272 9044 3298 9025
TIME...MOT...LOC 2321Z 224DEG 35KT 3273 9035

NF
Special weather statement, Feb 24, 5:38 PM CST, 4 hours 52 minutes before
Special Weather Statement
National Weather Service Jackson MS
538 PM CST SAT FEB 24 2018

MSZ027-028-250015-
Carroll MS-Montgomery MS-
538 PM CST SAT FEB 24 2018

...A STRONG THUNDERSTORM WILL AFFECT SOUTHERN CARROLL AND
SOUTHWESTERN MONTGOMERY COUNTIES UNTIL 615 PM CST...

At 538 PM CST, Meteorologists were tracking a strong thunderstorm
near Black Hawk, moving northeast at 45 mph.

Dime size hail and winds in excess of 40 mph will be possible with
this storm.

This strong thunderstorm will be near...
  Vaiden around 550 PM CST.
  Winona around 600 PM CST.

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 3341 8956 3324 8987 3329 9003 3335 9008
      3358 8975
TIME...MOT...LOC 2338Z 232DEG 39KT 3333 8994

TW
Special weather statement, Feb 24, 5:47 PM CST, 4 hours 43 minutes before
Special Weather Statement
National Weather Service Jackson MS
547 PM CST SAT FEB 24 2018

MSZ036-042-250015-
Yazoo MS-Holmes MS-
547 PM CST SAT FEB 24 2018

...A STRONG THUNDERSTORM WILL AFFECT SOUTHEASTERN HOLMES AND
NORTHEASTERN YAZOO COUNTIES UNTIL 615 PM CST...

At 547 PM CST, Meteorologists were tracking a strong thunderstorm
near Ebenezer, or 16 miles east of Yazoo City, moving northeast at 35
mph.

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

This strong thunderstorm will be near...
  Ebenezer around 555 PM CST.
  Pickens around 600 PM CST.
  Franklin and Goodman around 610 PM CST.

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.

This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

&&

LAT...LON 3310 8999 3298 8988 3293 8990 3292 8992
      3291 8992 3291 8994 3290 8994 3289 8996
      3285 8999 3281 9017 3289 9024
TIME...MOT...LOC 2347Z 231DEG 31KT 3288 9013

NF
Special weather statement, Feb 24, 7:17 PM CST, 3 hours 13 minutes before
Special Weather Statement
National Weather Service Jackson MS
717 PM CST SAT FEB 24 2018

ARZ074-250215-
Ashley AR-
717 PM CST SAT FEB 24 2018

...A STRONG THUNDERSTORM WILL AFFECT NORTHERN ASHLEY COUNTY UNTIL 815
PM CST...

At 716 PM CST, Meteorologists were tracking a strong thunderstorm
near Old Milo, or 8 miles north of North Crossett, moving northeast
at 55 mph.

Winds in excess of 40 mph will be possible with this storm.

Locations impacted include...
Hamburg, Montrose, Fountain Hill, Old Milo, Snyder and Blanchton.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Torrential rainfall is also occurring with this storm, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

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 3321 9213 3321 9208 3324 9209 3325 9205
      3327 9204 3328 9204 3328 9200 3330 9200
      3331 9198 3335 9199 3335 9197 3338 9196
      3339 9198 3340 9199 3339 9146 3328 9146
      3316 9214
TIME...MOT...LOC 0116Z 239DEG 46KT 3329 9199

DL
Special weather statement, Feb 24, 10:30 PM CST, 0 minutes before
Special Weather Statement
National Weather Service Jackson MS
1030 PM CST SAT FEB 24 2018

LAZ008-009-015-016-023-250515-
Richland LA-Madison LA-East Carroll LA-West Carroll LA-Franklin LA-
1030 PM CST SAT FEB 24 2018

...A LINE OF GUSTY THUNDERSTORM WILL AFFECT SOUTHWESTERN EAST
CARROLL...MADISON...RICHLAND...SOUTHWESTERN WEST CARROLL AND
FRANKLIN PARISHES UNTIL 1115 PM CST...

At 1029 PM CST, Meteorologists were tracking a line of strong
thunderstorms extending from near Darnell to 6 miles northwest of
Buckner. Movement was southeast at 25 mph.

Winds in excess of 40 mph will be possible with these storms.

Strong thunderstorms will be near...
  Darnell around 1035 PM CST.
  Warden around 1040 PM CST.
  Monticello around 1045 PM CST.
  Waverly around 1055 PM CST.
  Mangham and Tendal around 1100 PM CST.
  Liddieville and Sondheimer around 1110 PM CST.
  Tallulah, Winnsboro, Mansford and Omega around 1115 PM CST.

Other locations impacted by these storms include Baskin, Richmond and
Epps.

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 3238 9201 3246 9194 3271 9146 3252 9110
      3248 9112 3246 9109 3243 9096 3220 9141
      3220 9149 3216 9149 3197 9189 3207 9193
      3209 9187 3212 9187 3217 9190 3217 9198
      3220 9198 3219 9201 3225 9199 3228 9203
TIME...MOT...LOC 0429Z 309DEG 24KT 3264 9148 3236 9202

BYB

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 24, 8:02 PM CSTFlash Flood WarningJANBolivar, Sunflower, Washington3 hr
Feb 25, 12:19 AM CSTSpecial Weather StatementJANLowndes, Noxubee, Oktibbeha, Winston56 min
Feb 25, 1:45 AM CSTSpecial Weather StatementJANNoxubee60 min
Feb 24, 7:17 PM CSTSpecial Weather StatementJANAshley58 min

Nearby

Special Weather Statements in Louisiana, 2018Every special weather statement 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.