Alert archive / Mississippi / Tornado Warnings in 2019

Tornado Warning 11, NWS Jackson, MS

February 20, 2019Newton County, Scott County, Mississippi

NWS Jackson, MS issued this tornado warning at Feb 20, 2019, 8:38 AM CST for Newton County, Scott County, Mississippi. It was in force for 24 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 20, 2019, 8:38 AM CST (14:38 UTC)
Expired
Feb 20, 2019, 9:02 AM CST
In force
24 min
Issued by
NWS Jackson, MS
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.75 in

Counties Newton County, MS, Scott County, MS

The radar

The Jackson/Brandon,MS radar (KDGX), 75 km from the middle of the area, began a volume at 14:40 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.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this tornado warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

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, 2.6 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-pSkew-T log-p diagram, Jackson, MS at 12:00Z on 2019-02-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1094 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 12:00Z on 2019-02-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 409 square meters per square second.1939587897117Sfc1 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
1094 J/kg
Mixed-layer CIN
-9 J/kg
Mixed-layer LCL
521 m above ground
0-6 km bulk shear
67 kt
0-1 km storm-relative helicity
409 m²/s²
0-3 km storm-relative helicity
435 m²/s²
Significant tornado parameter
3.2
Supercell composite
12.3

Open this sounding in Storm Lab

The text

As transmitted.

330 
WFUS54 KJAN 201438
TORJAN
MSC101-123-201545-
/O.NEW.KJAN.TO.W.0011.190220T1438Z-190220T1545Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Jackson MS
838 AM CST WED FEB 20 2019

The National Weather Service in Jackson has issued a

* Tornado Warning for...
  Newton County in east central Mississippi...
  Southeastern Scott County in central Mississippi...

* Until 945 AM CST.
    
* At 838 AM CST, a severe thunderstorm capable of producing a tornado
  was located 7 miles southeast of Forest, moving northeast at 40
  mph.

  HAZARD...Tornado.

  SOURCE...Radar indicated rotation.

  IMPACT...Flying debris will be dangerous to those caught without 
           shelter. Mobile homes will be damaged or destroyed. 
           Damage to roofs, windows, and vehicles will occur.  Tree 
           damage is likely.

* This dangerous storm will be near...
  Lawrence around 850 AM CST.
  Conehatta around 855 AM CST.
  Newton around 900 AM CST.
  Decatur and Stratton around 910 AM CST.
  Little Rock around 920 AM CST.
  Duffee around 925 AM CST.

Other locations impacted by this tornadic thunderstorm include Lake.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 3222 8925 3222 8945 3232 8951 3258 8908
      3258 8892 3238 8892
TIME...MOT...LOC 1438Z 238DEG 34KT 3229 8938 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

GRG
2 follow-up statements
447 
WWUS54 KJAN 201453
SVSJAN

Severe Weather Statement
National Weather Service Jackson MS
853 AM CST WED FEB 20 2019

MSC123-201502-
/O.CAN.KJAN.TO.W.0011.000000T0000Z-190220T1545Z/
Scott MS-
853 AM CST WED FEB 20 2019

...THE TORNADO WARNING FOR SOUTHEASTERN SCOTT COUNTY IS CANCELLED...
    
The tornadic thunderstorm which prompted the warning moved out of 
the warned area. Therefore, the warning has been cancelled.

LAT...LON 3222 8924 3222 8932 3243 8932 3258 8908
      3258 8892 3238 8892
TIME...MOT...LOC 1452Z 234DEG 24KT 3234 8930 

$$

MSC101-201545-
/O.CON.KJAN.TO.W.0011.000000T0000Z-190220T1545Z/
Newton MS-
853 AM CST WED FEB 20 2019

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 945 AM CST FOR NEWTON
COUNTY...
    
At 852 AM CST, a severe thunderstorm capable of producing a tornado
was located near Lawrence, or 8 miles west of Newton, moving
northeast at 30 mph.

HAZARD...Tornado.

SOURCE...Radar indicated rotation.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely.

This dangerous storm will be near...
  Lawrence around 900 AM CST.
  Conehatta around 905 AM CST.
  Newton around 910 AM CST.
  Decatur around 920 AM CST.
  Stratton around 925 AM CST.
  Little Rock around 935 AM CST.
  Duffee around 945 AM CST.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 3222 8924 3222 8932 3243 8932 3258 8908
      3258 8892 3238 8892
TIME...MOT...LOC 1452Z 234DEG 24KT 3234 8930 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

GRG
965 
WWUS54 KJAN 201502
SVSJAN

Severe Weather Statement
National Weather Service Jackson MS
902 AM CST WED FEB 20 2019

MSC101-201512-
/O.CAN.KJAN.TO.W.0011.000000T0000Z-190220T1545Z/
Newton MS-
902 AM CST WED FEB 20 2019

...THE TORNADO WARNING FOR NEWTON COUNTY IS CANCELLED...
                
The storm which prompted the warning has weakened below severe
limits, and no longer appears capable of producing a tornado.
Therefore, the warning has been cancelled.

LAT...LON 3222 8924 3222 8932 3243 8932 3258 8908
      3258 8892 3238 8892
TIME...MOT...LOC 1500Z 238DEG 34KT 3239 8921 

$$

GRG

What forecasters said that day

The local office's own words before this tornado 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 tornado warning went out at Feb 20, 5:59 AM CST, 2 hours 39 minutes earlier.

Area forecast discussion, Feb 20, 5:59 AM CST, 2 hours 39 minutes before
Area Forecast Discussion...UPDATED
National Weather Service Jackson MS
559 AM CST Wed Feb 20 2019

.UPDATE...
Updated for 12Z aviation discussion

&&

.AVIATION...
12Z TAF discussion: A mix of IFR and LIFR conds were observed at
1130Z at the TAF sites. The cold front has passed through GLH but
TSRA activity is expected across the remainder of the area today
as the cold front moves through the area. Flight conditions in the
nw wl gradually improve to VFR by this evening but -RA with isold
TSRA wl spread back across the area tonight from the se resulting
in IFR conds prevailing at most TAF sites after 06Z. /22/

&&

.DISCUSSION...

Today and Tonight: Early morning surface analysis had a 1036mb
high centered over the mid Atlantic seaboard that was ridging back
across the Gulf coast states while a 1009mb low was noted over
south central Louisiana. This surface high was responsible for our
shallow cool dry layer as seen on the 06Z Wed JAN sounding below
925mb. Also noted on the sounding was a stout mid level inversion
that has lowered to 700mb as compared to the 00Z sounding. Our
airmass is still expected to warm and moisten rapidly this morning
aided by increased south to southwest flow associated with a
potent shortwave trough noted on water vapor imagery tracking
northeast toward the mid Mississippi River valley. Per the 06Z JAN
sounding the 925mb have increased to 55kts with 50kts at 850mb.
This flow is expected to help draw a warm front north into our CWA
ahead of the cold front that is expected to continue tracking
north northeast across the western portions of our CWA as well.
Local radars showed a band of convection roughly from Natchez to
Grenada. This band will begin shifting east later this morning
along and ahead of the cold front as the surface low moves through
the area. There appears to be a window of opportunity this
morning into the early afternoon across the southeast third of our
CWA where a few severe storms capable of damaging wind gusts and
a brief tornado or two will be possible. Heavy rain will also
accompany the storms today. The heaviest rainfall yesterday
occurred along the Highway 82 corridor. This area could see an
additional one to two inches of rain today so the Flash Flood
Watch will remain in effect for that area today. Hi-res models are
in good agreement that the cold front will be southeast of
Interstate 59 by mid afternoon, bringing and end to the potential
for severe storms and heavy rainfall. The cold front is however
expected to stall just southeast of our CWA as our winds aloft
remain southwesterly through the period. A subtle shortwave within
the southwest flow aloft will help maintain rain chances this
evening across our southeast most zones that will spread back into
central Mississippi by morning. /22/

Thursday through Tuesday:

Primary adjustments with this forecast issuance were to reassess the
flooding and severe potential through this weekend. Model guidance
is in fairly decent agreement with the synoptic setup, so a general
consensus blend of guidance was used for temperatures and other
sensible weather elements into early next week.

Our semi-permanent frontal boundary will be stretched out across the
Gulf Coast to start the day on Thursday, with the upper-level
trough/ridge pattern keeping southwesterly flow aloft. As the
western CONUS trough deepens and the southeast U.S. ridge
strengthens, the surface front should begin lifting northward
through the day on Thursday and into Thursday night. The chance for
showers and a few elevated thunderstorms will spread northward.
Given the recent periods of heavy rainfall have affected northern
portions of our forecast area mostly, we have retained a Limited
Flash Flood threat for those areas stretching through the Delta
eastward toward the Golden Triangle in northeast Mississippi
beginning on Thursday and lasting through Saturday.

By the daytime on Friday, low-level humidity and increasingly warm
temperatures will become more supportive of isolated strong to
severe thunderstorms developing south of the front. This activity
will be driven by daytime heating, and some capping may limit
overall coverage of thunderstorm development. Therefore a Marginal
risk for severe thunderstorms has been introduced to the forecast
for the day on Friday - for northeast Louisiana, southeast Arkansas,
and areas in Mississippi mainly along and west of Interstate 55.

A separate round of severe thunderstorms is anticipated for Saturday
as the western CONUS trough swings across the country and lifts out
of the Plains during the day. Continued warm, moist advection ahead
of a deepening surface low  and stronger dynamics as a jet streak
rounds the base of the trough will bring a better chance for severe
thunderstorms to develop. Overall forcing will favor northern
portions of our forecast area, where the current Slight risk has
been expanded eastward to encompass all of northern and north-
central Mississippi for Saturday. A nice punch of dry air in the
wake of a cold front Saturday night will clear out rain chances
through at least Monday, and the upper-air pattern will become zonal
across the country. Rain chances start to creep back northward
Monday night into Tuesday as flow off the Gulf of Mexico returns. At
this time, there are no concerns for flooding rains or severe
weather early next week. /NF/

&&

.PRELIMINARY POINT TEMPS/POPS...
Jackson       67  48  58  53 /  99  59  90  77
Meridian      69  51  61  54 /  95  89  75  63
Vicksburg     59  45  55  51 /  89  20  94  88
Hattiesburg   72  55  69  63 /  88  89  66  51
Natchez       63  48  59  54 /  88  56  93  73
Greenville    58  38  52  48 /  71   7  89  92
Greenwood     56  40  55  49 /  94  11  87  94

&&

.JAN WATCHES/WARNINGS/ADVISORIES...
MS...Flash Flood Watch through this afternoon for MSZ019-025>033-
     035>039-041-042.

LA...None.
AR...None.

&&

NF/22
Hazardous weather outlook, Feb 20, 5:06 AM CST, 3 hours 32 minutes before
Hazardous Weather Outlook
National Weather Service Jackson MS
506 AM CST Wed Feb 20 2019

ARZ074-075-LAZ007>009-015-016-023>026-MSZ018-034-040-211115-
Ashley-Chicot-Morehouse-West Carroll-East Carroll-Richland-
Madison LA-Franklin LA-Catahoula-Tensas-Concordia-Bolivar-
Washington-Issaquena-
506 AM CST Wed Feb 20 2019

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

.DAY ONE...Today and Tonight

FLOODING
THREAT...Limited
TIMING...Today

Showers and thunderstorms producing locally heavy rain today will
result in possible flash flooding, particularly in low lying and
urban areas. Minor to moderate river flooding is also possible.

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

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday

Additional rounds of heavy rainfall will be possible Thursday
through Saturday, especially for locations in northern
Mississippi, far southeast Arkansas, and far northeast Louisiana.
Localized flash flooding will be possible through this time, and
minor to moderate river flooding will likely continue.

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

Isolated strong to severe thunderstorms will be possible during
the day on Saturday, especially across northeast Louisiana,
southeast Arkansas, and areas in western and central Mississippi
along and west of the Interstate 55 corridor. Hail up to the size
of quarters and damaging wind gusts up to 60 mph will be the
primary hazards.

(https://www.weather.gov/images/jan/graphicast/3.png)

Severe thunderstorms will be possible on Saturday, especially
across northeast Louisiana, southeast Arkansas, and areas in
Mississippi north of Highway 84. This potential weather event is
still several days away, so be sure to stay tuned for updates to
the forecast.

(https://www.weather.gov/images/jan/graphicast/4.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 Friday and
Saturday.

MSZ019-025>030-035-036-041-211115-
Sunflower-Leflore-Grenada-Carroll-Montgomery-Webster-Clay-
Humphreys-Holmes-Sharkey-
506 AM CST Wed Feb 20 2019

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

.DAY ONE...Today and Tonight

FLOODING
THREAT...Elevated
TIMING...Today

Showers and thunderstorms producing heavy rain today will likely
result in areas of flash flooding. Some roads could be flooded or
closed. Some structures may be potentially threatened by high
water. Minor to moderate river flooding is also likely.

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

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday

Additional rounds of heavy rainfall will be possible Thursday
through Saturday, especially for locations in northern
Mississippi, far southeast Arkansas, and far northeast Louisiana.
Localized flash flooding will be possible through this time, and
minor to moderate river flooding will likely continue.

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

Isolated strong to severe thunderstorms will be possible during
the day on Saturday, especially across northeast Louisiana,
southeast Arkansas, and areas in western and central Mississippi
along and west of the Interstate 55 corridor. Hail up to the size
of quarters and damaging wind gusts up to 60 mph will be the
primary hazards.

(https://www.weather.gov/images/jan/graphicast/3.png)

Severe thunderstorms will be possible on Saturday, especially
across northeast Louisiana, southeast Arkansas, and areas in
Mississippi north of Highway 84. This potential weather event is
still several days away, so be sure to stay tuned for updates to
the forecast.

(https://www.weather.gov/images/jan/graphicast/4.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 Friday and
Saturday.

MSZ031>033-037>039-211115-
Lowndes-Choctaw-Oktibbeha-Attala-Winston-Noxubee-
506 AM CST Wed Feb 20 2019

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

.DAY ONE...Today and Tonight

SEVERE THUNDERSTORMS
THREAT...Marginal
TIMING...Today

FLOODING
THREAT...Elevated
TIMING...Today

Isolated severe thunderstorms are possible through Noon today.
Some thunderstorms could produce damaging wind gusts and hail,
but a tornado cannot be ruled out.

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

Showers and thunderstorms producing heavy rain today will likely
result in areas of flash flooding. Some roads could be flooded or
closed. Some structures may be potentially threatened by high
water. Minor to moderate river flooding is also likely.

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

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday

Additional rounds of heavy rainfall will be possible Thursday
through Saturday, especially for locations in northern
Mississippi, far southeast Arkansas, and far northeast Louisiana.
Localized flash flooding will be possible through this time, and
minor to moderate river flooding will likely continue.

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

Isolated strong to severe thunderstorms will be possible during
the day on Saturday, especially across northeast Louisiana,
southeast Arkansas, and areas in western and central Mississippi
along and west of the Interstate 55 corridor. Hail up to the size
of quarters and damaging wind gusts up to 60 mph will be the
primary hazards.

(https://www.weather.gov/images/jan/graphicast/3.png)

Severe thunderstorms will be possible on Saturday, especially
across northeast Louisiana, southeast Arkansas, and areas in
Mississippi north of Highway 84. This potential weather event is
still several days away, so be sure to stay tuned for updates to
the forecast.

(https://www.weather.gov/images/jan/graphicast/4.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 today and
Saturday.

MSZ042>048-053-059>061-211115-
Yazoo-Madison MS-Leake-Neshoba-Kemper-Warren-Hinds-Claiborne-
Jefferson-Adams-Franklin MS-
506 AM CST Wed Feb 20 2019

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

.DAY ONE...Today and Tonight

SEVERE THUNDERSTORMS
THREAT...Marginal
TIMING...Today

FLOODING
THREAT...Limited
TIMING...Today

Isolated severe thunderstorms are possible through Noon today.
Some thunderstorms could produce damaging wind gusts and hail,
but a tornado cannot be ruled out.

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

Showers and thunderstorms producing locally heavy rain today will
result in possible flash flooding, particularly in low lying and
urban areas. Minor to moderate river flooding is also possible.

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

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday

Additional rounds of heavy rainfall will be possible Thursday
through Saturday, especially for locations in northern
Mississippi, far southeast Arkansas, and far northeast Louisiana.
Localized flash flooding will be possible through this time, and
minor to moderate river flooding will likely continue.

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

Isolated strong to severe thunderstorms will be possible during
the day on Saturday, especially across northeast Louisiana,
southeast Arkansas, and areas in western and central Mississippi
along and west of the Interstate 55 corridor. Hail up to the size
of quarters and damaging wind gusts up to 60 mph will be the
primary hazards.

(https://www.weather.gov/images/jan/graphicast/3.png)

Severe thunderstorms will be possible on Saturday, especially
across northeast Louisiana, southeast Arkansas, and areas in
Mississippi north of Highway 84. This potential weather event is
still several days away, so be sure to stay tuned for updates to
the forecast.

(https://www.weather.gov/images/jan/graphicast/4.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 today,
Friday and Saturday.

MSZ049>052-054>058-062>066-072>074-211115-
Rankin-Scott-Newton-Lauderdale-Copiah-Simpson-Smith-Jasper-Clarke-
Lincoln-Lawrence-Jefferson Davis-Covington-Jones-Marion-Lamar-
Forrest-
506 AM CST Wed Feb 20 2019

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

.DAY ONE...Today and Tonight

SEVERE THUNDERSTORMS
THREAT...Slight
TIMING...Today

FLOODING
THREAT...Limited
TIMING...Today

Severe thunderstorms are possible through early this afternoon.
Some thunderstorms could produce tornadoes, damaging wind gusts
of 60 to 70 mph, and hail up to the size of quarters.

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

Showers and thunderstorms producing locally heavy rain today will
result in possible flash flooding, particularly in low lying and
urban areas. Minor to moderate river flooding is also possible.

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

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday

Additional rounds of heavy rainfall will be possible Thursday
through Saturday, especially for locations in northern
Mississippi, far southeast Arkansas, and far northeast Louisiana.
Localized flash flooding will be possible through this time, and
minor to moderate river flooding will likely continue.

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

Isolated strong to severe thunderstorms will be possible during
the day on Saturday, especially across northeast Louisiana,
southeast Arkansas, and areas in western and central Mississippi
along and west of the Interstate 55 corridor. Hail up to the size
of quarters and damaging wind gusts up to 60 mph will be the
primary hazards.

(https://www.weather.gov/images/jan/graphicast/3.png)

Severe thunderstorms will be possible on Saturday, especially
across northeast Louisiana, southeast Arkansas, and areas in
Mississippi north of Highway 84. This potential weather event is
still several days away, so be sure to stay tuned for updates to
the forecast.

(https://www.weather.gov/images/jan/graphicast/4.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 today,
Friday and Saturday.

NF

&&

...HAZARD LEGEND...

*FLOODING*
Extreme...Widespread and significant flooding is likely.
Significant...Widespread flash flooding is likely
 and significant flooding is possible.
Elevated...Areas of flash flooding likely.
Limited...Localized flash flooding is possible.

*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 FLOODING ISSUES...

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

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

River Forecast Center...
   https://www.weather.gov/lmrfc/
Significant River Flood Outlook...
   https://www.wpc.ncep.noaa.gov/nationalfloodoutlook/index.html
Day 1 through 3 Excessive Rainfall...
   https://www.wpc.ncep.noaa.gov/qpf/excess_rain.shtml
Excessive Rainfall Discussion...
   https://www.wpc.ncep.noaa.gov/discussions/qpferd.html
Day 1 through 7 QPF...
   https://www.wpc.ncep.noaa.gov/qpf/qpf2.shtml
QPF Discussion...
   https://www.wpc.ncep.noaa.gov/discussions/qpfpfd.html
...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, Feb 20, 7:06 AM CST, 1 hour 32 minutes before
Special Weather Statement
National Weather Service Jackson MS
706 AM CST WED FEB 20 2019

MSZ054-055-063-064-201330-
Lawrence MS-Jefferson Davis MS-Copiah MS-Simpson MS-
706 AM CST WED FEB 20 2019

...A STRONG THUNDERSTORM WILL AFFECT CENTRAL SIMPSON...NORTHERN
LAWRENCE...SOUTHEASTERN COPIAH AND NORTHWESTERN JEFFERSON DAVIS
COUNTIES UNTIL 730 AM CST...

At 706 AM CST, Meteorologists were tracking a strong thunderstorm
over Oma, or 12 miles southwest of Pinola, moving northeast at 55
mph.

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

This strong thunderstorm will be near...
  Union and Shivers around 715 AM CST.
  Pinola around 720 AM CST.
  Mendenhall and Sanatorium around 730 AM CST.

Other locations impacted by this storm include New Hebron and D'Lo.

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.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

&&

LAT...LON 3171 9024 3172 9025 3170 9026 3170 9029
      3174 9027 3204 8991 3205 8979 3177 8975
      3177 8976 3170 8976 3152 9024
TIME...MOT...LOC 1306Z 225DEG 49KT 3175 9011

GRG
Special weather statement, Feb 20, 7:26 AM CST, 1 hour 12 minutes before
Special Weather Statement
National Weather Service Jackson MS
726 AM CST WED FEB 20 2019

MSZ055-201400-
Simpson MS-
726 AM CST WED FEB 20 2019

...A STRONG THUNDERSTORM WILL AFFECT SIMPSON COUNTY UNTIL 800 AM
CST...

At 726 AM CST, Meteorologists were tracking a strong thunderstorm
over Pinola, moving northeast at 50 mph.

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

This strong thunderstorm will be near...
  Mendenhall and Sanatorium around 740 AM CST.
  Martinville around 745 AM CST.

Other locations impacted by this storm include D'Lo.

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.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

&&

LAT...LON 3178 9011 3179 9011 3179 9012 3181 9015
      3183 9013 3184 9015 3205 8986 3205 8966
      3183 8965 3178 8966 3176 9008
TIME...MOT...LOC 1326Z 227DEG 42KT 3186 9000

GRG
Local storm report, Feb 20, 7:27 AM CST, 1 hour 11 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSON MS
727 AM CST WED FEB 20 2019

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

0700 AM     FLASH FLOOD      NORTH CARROLLTON        33.52N 89.92W
02/20/2019                   CARROLL            MS   EMERGENCY MNGR

            A FEW ROADS FLOODED, DESCRIBED AS SOME AREAS
            UNDER WATER, IN N CARROLLTON AND IN THE
            COUNTY.

&&

CE
Local storm report, Feb 20, 7:33 AM CST, 1 hour 5 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSON MS
733 AM CST WED FEB 20 2019

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

0710 AM     FLASH FLOOD      5 ESE GORE SPRINGS      33.74N 89.53W
02/20/2019                   GRENADA            MS   LAW ENFORCEMENT

            WATER OVER A PART OF PLEASANT GROVE RD.

&&

CE
Local storm report, Feb 20, 7:57 AM CST, 41 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSON MS
757 AM CST WED FEB 20 2019

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

0755 AM     FLASH FLOOD      1 W ELLIOTT             33.68N 89.76W
02/20/2019                   GRENADA            MS   PUBLIC

            BOLTON HILL RD UNDER WATER.

&&

AW
Local storm report, Feb 20, 8:31 AM CST, 7 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSON MS
831 AM CST WED FEB 20 2019

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

0829 AM     FLASH FLOOD      2 W D'LO                31.98N 89.93W
02/20/2019                   SIMPSON            MS   DEPT OF HIGHWAYS

            MS 540 AT JOHN AYERS RD IS CLOSED DUE TO
            FLOODING.

&&

AW

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 19, 7:34 PM CSTRiver Flood WarningJANCarroll, Leflore23 days
Feb 19, 8:49 PM CSTAreal Flood WarningJANClay6 hr
Feb 19, 10:29 PM CSTSpecial Weather StatementJANBolivar46 min
Feb 20, 12:44 AM CSTFlash Flood WarningJANBolivar, Issaquena, Washington2 hr
Feb 20, 1:41 AM CSTFlash Flood WarningJANLeflore, Sunflower2 hr
Feb 20, 4:20 AM CSTSpecial Weather StatementJANHolmes25 min
Feb 20, 6:42 AM CSTFlash Flood WarningJANCarroll, Grenada, Holmes, Montgomery, Webster3 hr
Feb 20, 7:06 AM CSTSpecial Weather StatementJANSimpson24 min
Feb 20, 7:26 AM CSTSpecial Weather StatementJANSimpson34 min
Feb 20, 7:37 AM CSTSevere Thunderstorm WarningJANRankin, Simpson, Smith38 min
Feb 20, 8:11 AM CSTFlash Flood WarningJANSimpson3 hr
Feb 20, 8:11 AM CSTSevere Thunderstorm WarningJANScott, Smith34 min
Feb 20, 8:59 AM CSTSpecial Weather StatementJANSimpson, Smith31 min
Feb 20, 9:01 AM CSTFlash Flood WarningJANNewton, Rankin, Scott, Smith4 hr
Feb 20, 9:01 AM CSTSpecial Weather StatementJANLawrence29 min
Feb 20, 9:12 AM CSTFlash Flood WarningJANCovington, Jefferson Davis, Lawrence, Lincoln, Simpson, Smith4 hr
Feb 20, 9:20 AM CSTFlash Flood WarningJANAttala, Carroll, Choctaw, Clay, Grenada, Montgomery and 2 more4 hr
Feb 20, 9:27 AM CSTSevere Thunderstorm WarningJANScott, Smith21 min
Feb 20, 9:38 AM CSTFlash Flood WarningJANKemper, Leake, Neshoba, Noxubee, Winston4 hr
Feb 20, 10:22 AM CSTFlash Flood WarningJANClarke, Jasper, Kemper, Lauderdale, Newton4 hr
Feb 20, 10:49 AM CSTRiver Flood WarningJANSharkey161 days
Feb 20, 11:18 AM CSTSpecial Weather StatementJANJones27 min
Feb 20, 11:38 AM CSTSpecial Weather StatementJANClarke37 min
Feb 20, 12:00 PM CSTFlash Flood WarningJANCovington, Forrest, Jefferson Davis, Jones, Lamar, Marion3 hr
Feb 20, 12:08 PM CSTSpecial Weather StatementJANLamar37 min
Feb 20, 4:52 PM CSTFlash Flood WatchJANAttala, Bolivar, Carroll, Choctaw, Clay, Grenada and 14 more3 days
Feb 20, 5:16 PM CSTRiver Flood WarningJANClarke3 days

Nearby

Tornado Warnings in Mississippi, 2019Every tornado warning in 2019Tornadoes in 2019

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.