Alert archive / Louisiana / Flash Flood Warnings in 2019

Flash Flood Warning 34, NWS Jackson, MS

April 13, 2019Claiborne County, Warren County, Mississippi; 5 parishes in Louisiana

NWS Jackson, MS issued this flash flood warning at Apr 13, 2019, 4:47 PM CDT for Claiborne County, Warren County, Mississippi; 5 parishes in Louisiana. It was in force for 3 hr. 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
Apr 13, 2019, 4:47 PM CDT (21:47 UTC)
Expired
Apr 13, 2019, 7:45 PM CDT
In force
3 hr
Issued by
NWS Jackson, MS
Area
Storm-based polygon
Flood severity
None

Counties Catahoula Parish, LA, Franklin Parish, LA, Madison Parish, LA, Richland Parish, LA, Tensas Parish, LA, Claiborne County, MS, Warren County, MS

The radar

The Jackson/Brandon,MS radar (KDGX), 99 km from the middle of the area, began a volume at 21:47 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

TimeReportWhereRemark
Apr 13, 5:24 PM CDTFLASH FLOOD3 S Vicksburg, MSFLOODED ROADWAY (PEMBERTON BLVD).

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 2 storm reports to this flash flood warning; the first came 37 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, 9.8 hours before the alert went out and 90 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 2019-04-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 29 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 2019-04-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 515 square meters per square second.19395878Sfc1 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
29 J/kg
Mixed-layer CIN
-284 J/kg
Mixed-layer LCL
491 m above ground
0-6 km bulk shear
64 kt
0-1 km storm-relative helicity
515 m²/s²
0-3 km storm-relative helicity
933 m²/s²
Significant tornado parameter
0.0
Supercell composite
5.6

Open this sounding in Storm Lab

The text

As transmitted.

869 
WGUS54 KJAN 132147
FFWJAN
LAC025-041-065-083-107-MSC021-149-140045-
/O.NEW.KJAN.FF.W.0034.190413T2147Z-190414T0045Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Jackson MS
447 PM CDT SAT APR 13 2019

The National Weather Service in Jackson has issued a

* Flash Flood Warning for...
  Tensas Parish in northeastern Louisiana...
  Madison Parish in northeastern Louisiana...
  Northeastern Catahoula Parish in northeastern Louisiana...
  East central Richland Parish in northeastern Louisiana...
  Eastern Franklin Parish in northeastern Louisiana...
  Warren County in west central Mississippi...
  Central Claiborne County in southwestern Mississippi...

* Until 745 PM CDT.

* At 447 PM CDT, Doppler radar indicated thunderstorms producing
  heavy rain across the warned area. Up to three inches of rain have
  already fallen. Flash flooding is expected to begin shortly.

* Some locations that will experience flooding include...
  Vicksburg, Tallulah, Redwood, Delhi, Newellton, St. Joseph, Wisner,
  Waterproof, Mansford, Lee Bayou, Le Tourneau, Flowers, Omega,
  Bakers, Helena, Lake Bruin, Youngton, Oak Ridge, Somerset and
  Bovina.

Additional rainfall amounts of up to two inches are possible in the 
warned area.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.

&&

LAT...LON 3240 9158 3254 9146 3257 9096 3242 9096
      3245 9086 3257 9086 3257 9073 3262 9072
      3253 9055 3234 9063 3234 9071 3215 9077
      3213 9091 3208 9092 3211 9103 3205 9108
      3208 9115 3201 9108 3176 9142 3174 9177

$$

TW
1 follow-up statement
834 
WGUS74 KJAN 132246
FFSJAN

Flash Flood Statement
National Weather Service Jackson MS
546 PM CDT SAT APR 13 2019

LAC025-041-065-083-107-MSC021-149-140045-
/O.CON.KJAN.FF.W.0034.000000T0000Z-190414T0045Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Tensas LA-Madison LA-Catahoula LA-Richland LA-Franklin LA-Warren MS-
Claiborne MS-
546 PM CDT SAT APR 13 2019

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 745 PM CDT FOR
TENSAS...MADISON...NORTHEASTERN CATAHOULA...EAST CENTRAL RICHLAND AND
EASTERN FRANKLIN PARISHES...WARREN AND CENTRAL CLAIBORNE COUNTIES...

At 546 PM CDT, emergency management reported flash flooding across 
the warned area. Up to four inches of rain have fallen. Flash 
flooding is already occurring.

Some locations that will experience flooding include...
Vicksburg, Tallulah, Redwood, Delhi, Newellton, St. Joseph, Wisner,
Waterproof, Mansford, Lee Bayou, Le Tourneau, Flowers, Omega, Bakers,
Helena, Lake Bruin, Youngton, Oak Ridge, Somerset and Bovina.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.

&&

LAT...LON 3240 9158 3254 9146 3257 9096 3242 9096
      3245 9086 3257 9086 3257 9073 3262 9072
      3253 9055 3234 9063 3234 9071 3215 9077
      3213 9091 3208 9092 3211 9103 3205 9108
      3208 9115 3201 9108 3176 9142 3174 9177

$$

TW

What forecasters said that day

The local office's own words before this flash flood 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 flash flood warning went out at Apr 13, 1:32 PM CDT, 3 hours 15 minutes earlier.

Area forecast discussion, Apr 13, 1:32 PM CDT, 3 hours 15 minutes before
Area Forecast Discussion
National Weather Service Jackson MS
132 PM CDT Sat Apr 13 2019

...SEVERE WEATHER OUTBREAK THIS AFTERNOON THROUGH TONIGHT...

.UPDATE...
Updated for 18Z aviation discussion

&&

.AVIATION...
18Z TAF discussion:

Expect TSRA/+TSRA to increase from west to east across the area
from this afternoon through the evening, moving east of the
GTR/MEI/HBG corridor after 06z, with prevailing ceilings likely
to drop to MVFR category. A strong pressure gradient and frontal
passages will make for changeable, gusty surface wind. Overall,
aviation conditions will be poor to hazardous during this forecast
period. /EC/

&&

.DISCUSSION...

A severe weather outbreak with the potential for strong tornadoes
is still expected and no significant adjustments are planned to
the current outlook graphics. The warm sector has been a bit
slower to build northward than prior guidance indicated with
relatively cool, dense air wedging into the Delta region this
morning, however, very strong height/pressure falls mix the warm
front northward this afternoon with a very favorable environment
for tornadic supercells quickly taking shape over the Delta
region as ML CAPE increases to > 2500 j/kg and effective SRH to
~400 m2/s2 in the warm sector. There are uncertainties with storm
evolution as much of the near term CAM guidance is in conflict
concerning initial supercell development both in terms of areal
coverage and mode. Some guidance shows broader/greater coverage
with HP supercell activity while some is indicative of more
discrete and classic supercell activity. These uncertainties will
keep us from increasing our current messaging/threat levels, which
are already strong. Otherwise, will be considering adjustments in
timing depending on how convection evolves initially, most likely
to speed things up slightly. /EC/

Prior discussion below:

Today and Tonight: Area radars showing some rather robust elevated
convection this morning over the ArkLaTex into northern portions of
the forecast area. A few supercells have been in this mix with
reports of large hail in some. All of this occurring in the elevated
ascent overtop of the old stationary front located over far south
MS/south LA. This boundary should earnestly move northward later
this morning into the afternoon, putting most of the area in the
warm sector ahead of the potent storm system taking shape over TX.

Strong pressure falls and tightening pressure gradient ahead of this
system will result in strong surface winds over much of the area,
especially the ArkLaMiss Delta region, this afternoon and evening.
Thus have issued a wind advisory to account for this.

Models showing PWs with this system near 2 inches which will make
for efficient rainfall rates in the heaviest storms, but progressive
nature of the system should preclude the need for a flash flood
watch as any flash flooding that does occur, should be localized. Of
greater concern will be the significant severe weather threat this
afternoon into tonight. Already, strong low and deep layer shear is
in place over the region and will increase further as the storm
system approaches. As the storm system approaches, the rare
combination of strong instability with steepening mid level lapse
rates coincident with strong shear will support strongly rotating
supercells capable of tornadoes (some strong and long track), very
large hail and damaging straight line winds. These look to develop
from the west during the afternoon, eventually becoming aligned
north to south during the evening as they approach eastern MS.
Severe storm potential will linger in the far east after midnight,
but the majority will move into AL prior to dawn./GG/

Sunday through Friday: As the upper trough lifts to the northeast
on Sunday morning, the line of storms will exit our area leaving
some wrap-around showers possible in the northern half of the CWA
as the surface low lifts away. A surface high quickly builds into
the region on Monday and upper ridging will set the stage for
quiet weather for the first half of the week. Temperatures will be
near normal for this time of year during this period - highs in
the 70s/lower 80s and lows near 50. Now, Monday morning will be a
bit chilly with the surface high developing over the area and
temps will fall into the lower 40s, perhaps into the 30s in some
sheltered locations.

The next weather-maker will come as another strong upper trough that
will move over the Central Plains on Wednesday. Being 5 days out,
the global models still differ a bit in solutions. The EMCWF still
has an open trough while the GFS has a deeper, closed low, both over
the same vicinity though. As the trough tracks eastward Wednesday
into Thursday, a frontal boundary will push through the ArkLaMiss.
Diffluent flow aloft will be conducive for intense vertical motion
and storm development over our region. In the warm sector of this
system, PWs will peak above 1.5 inches. At this time, the
instability and shear values appear to be conducive for another
potential round of severe storms. Will hold off of mentioning it in
the HWO at this time since there's so much going on in the short
term and we are still 5 days out with this system. Also, at this
time, it appears that the system will be progressive enough that
heavy rains and flash flooding shouldn't be much of an issue, but
depending on how the models continue to develop this system, that
will need to be re-evaluated. The model consensus has the system
exiting the area by Thursday night. The trough will push east and a
surface high builds into the region again. This appears to allow the
weather over the Easter weekend to be quiet and near normal.
Hopefully this solution continues. /10/

&&

.PRELIMINARY POINT TEMPS/POPS...
Jackson       78  60  62  42 /  43  87  23   6
Meridian      78  64  70  43 /  36  92  24   8
Vicksburg     75  58  61  43 /  78  86  19   5
Hattiesburg   82  65  69  43 /  38  86  12   4
Natchez       77  56  61  43 /  75  83  13   2
Greenville    69  57  60  44 /  90  92  34   6
Greenwood     71  59  60  42 /  64  89  34   9

&&

.JAN WATCHES/WARNINGS/ADVISORIES...
MS...Wind Advisory until 10 PM CDT this evening for MSZ018-019-
     025>027-034>036-040>043-047>049-053>066-072>074.

LA...Wind Advisory until 10 PM CDT this evening for LAZ007>009-015-
     016-023>026.

AR...Wind Advisory until 10 PM CDT this evening for ARZ074-075.

&&
Hazardous weather outlook, Apr 13, 3:06 PM CDT, 1 hour 41 minutes before
Hazardous Weather Outlook
National Weather Service Jackson MS
306 PM CDT Sat Apr 13 2019

ARZ074-075-LAZ007>009-015-016-023-025-MSZ034>036-040>042-047-
142015-
Ashley-Chicot-Morehouse-West Carroll-East Carroll-Richland-
Madison LA-Franklin LA-Tensas-Washington-Humphreys-Holmes-
Issaquena-Sharkey-Yazoo-Warren-
306 PM CDT Sat Apr 13 2019

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

.DAY ONE...Tonight and Sunday

SEVERE THUNDERSTORMS
THREAT...Moderate
TIMING...The rest of this afternoon through tonight

FLOODING
THREAT...Elevated
TIMING...The rest of this afternoon through tonight

NON-THUNDERSTORM WINDS
THREAT...Elevated
TIMING...The rest of this afternoon through tonight

A severe weather outbreak is likely Saturday afternoon into early
Sunday morning. Tornadoes, some of which could be strong,
widespread damaging winds up to 70mph, and golf ball to baseball
size hail are likely.

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

Heavy rainfall from multiple rounds of storms will lead to flash
flooding Saturday afternoon into early Sunday morning. 1-3" of
rain with locally higher amounts is expected.

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

A few downed trees and power lines are possible due to sustained
winds ranging from 25 to 30 mph and potential for wind gusts
around 40 mph. Travel will also be difficult for those in high
profile vehicles.

(https://www.weather.gov/images/jan/graphicast/3.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 remainder
of the afternoon through tonight.

MSZ018-019-025-142015-
Bolivar-Sunflower-Leflore-
306 PM CDT Sat Apr 13 2019

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

.DAY ONE...Tonight and Sunday

SEVERE THUNDERSTORMS
THREAT...Enhanced
TIMING...The rest of this afternoon through tonight

FLOODING
THREAT...Elevated
TIMING...The rest of this afternoon through tonight

NON-THUNDERSTORM WINDS
THREAT...Elevated
TIMING...The rest of this afternoon through tonight

A severe weather outbreak is likely Saturday afternoon into early
Sunday morning. Tornadoes, a few possibly strong, damaging winds
up to 70mph, and golf ball size hail are likely.

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

Heavy rainfall from multiple rounds of storms will lead to flash
flooding Saturday afternoon into early Sunday morning. 1-3" of
rain with locally higher amounts is expected.

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

A few downed trees and power lines are possible due to sustained
winds ranging from 25 to 30 mph and potential for wind gusts
around 40 mph. Travel will also be difficult for those in high
profile vehicles.

(https://www.weather.gov/images/jan/graphicast/3.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 remainder
of the afternoon through tonight.

MSZ029>033-037>039-045-046-051-052-142015-
Webster-Clay-Lowndes-Choctaw-Oktibbeha-Attala-Winston-Noxubee-
Neshoba-Kemper-Newton-Lauderdale-
306 PM CDT Sat Apr 13 2019

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

.DAY ONE...Tonight and Sunday

SEVERE THUNDERSTORMS
THREAT...Enhanced
TIMING...The rest of this afternoon through tonight

FLOODING
THREAT...Limited
TIMING...The rest of this afternoon through tonight

NON-THUNDERSTORM WINDS
THREAT...Limited
TIMING...The rest of this afternoon through tonight

A severe weather outbreak is likely Saturday afternoon into early
Sunday morning. Tornadoes, a few possibly strong, damaging winds
up to 70mph, and golf ball size hail are likely.

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

Heavy rainfall from multiple rounds of storms could lead to flash
flooding Saturday afternoon into early Sunday morning. 1-2" of
rain with locally higher amounts is expected.

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

Weak trees and limbs may break and fall due to sustained winds up
to 25 mph and wind gusts around 35 mph. High profile vehicles
could also be affected.

(https://www.weather.gov/images/jan/graphicast/3.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 remainder
of the afternoon through tonight.

MSZ026>028-142015-
Grenada-Carroll-Montgomery-
306 PM CDT Sat Apr 13 2019

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

.DAY ONE...Tonight and Sunday

SEVERE THUNDERSTORMS
THREAT...Enhanced
TIMING...The rest of this afternoon through tonight

FLOODING
THREAT...Elevated
TIMING...The rest of this afternoon through tonight

NON-THUNDERSTORM WINDS
THREAT...Limited
TIMING...The rest of this afternoon through tonight

A severe weather outbreak is likely Saturday afternoon into early
Sunday morning. Tornadoes, a few possibly strong, damaging winds
up to 70mph, and golf ball size hail are likely.

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

Heavy rainfall from multiple rounds of storms will lead to flash
flooding Saturday afternoon into early Sunday morning. 1-3" of
rain with locally higher amounts is expected.

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

Weak trees and limbs may break and fall due to sustained winds up
to 25 mph and wind gusts around 35 mph. High profile vehicles
could also be affected.

(https://www.weather.gov/images/jan/graphicast/3.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 remainder
of the afternoon through tonight.

MSZ044-050-142015-
Leake-Scott-
306 PM CDT Sat Apr 13 2019

This hazardous weather outlook is for portions of central
Mississippi.

.DAY ONE...Tonight and Sunday

SEVERE THUNDERSTORMS
THREAT...Moderate
TIMING...The rest of this afternoon through tonight

FLOODING
THREAT...Limited
TIMING...The rest of this afternoon through tonight

NON-THUNDERSTORM WINDS
THREAT...Limited
TIMING...The rest of this afternoon through tonight

A severe weather outbreak is likely Saturday afternoon into early
Sunday morning. Tornadoes, some of which could be strong,
widespread damaging winds up to 70mph, and golf ball to baseball
size hail are likely.

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

Heavy rainfall from multiple rounds of storms could lead to flash
flooding Saturday afternoon into early Sunday morning. 1-2" of
rain with locally higher amounts is expected.

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

Weak trees and limbs may break and fall due to sustained winds up
to 25 mph and wind gusts around 35 mph. High profile vehicles
could also be affected.

(https://www.weather.gov/images/jan/graphicast/3.png)
.DAYS TWO THROUGH SEVEN...Sunday night through Friday

.DAYS TWO THROUGH SEVEN...Sunday 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 remainder
of the afternoon through tonight.

LAZ024-026-MSZ043-048-049-053>055-059>063-142015-
Catahoula-Concordia-Madison MS-Hinds-Rankin-Claiborne-Copiah-
Simpson-Jefferson-Adams-Franklin MS-Lincoln-Lawrence-
306 PM CDT Sat Apr 13 2019

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

.DAY ONE...Tonight and Sunday

SEVERE THUNDERSTORMS
THREAT...Moderate
TIMING...The rest of this afternoon through tonight

FLOODING
THREAT...Limited
TIMING...The rest of this afternoon through tonight

NON-THUNDERSTORM WINDS
THREAT...Elevated
TIMING...The rest of this afternoon through tonight

A severe weather outbreak is likely Saturday afternoon into early
Sunday morning. Tornadoes, some of which could be strong,
widespread damaging winds up to 70mph, and golf ball to baseball
size hail are likely.

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

Heavy rainfall from multiple rounds of storms could lead to flash
flooding Saturday afternoon into early Sunday morning. 1-2" of
rain with locally higher amounts is expected.

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

A few downed trees and power lines are possible due to sustained
winds ranging from 25 to 30 mph and potential for wind gusts
around 40 mph. Travel will also be difficult for those in high
profile vehicles.

(https://www.weather.gov/images/jan/graphicast/3.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 remainder
of the afternoon through tonight.

MSZ056>058-064>066-072>074-142015-
Smith-Jasper-Clarke-Jefferson Davis-Covington-Jones-Marion-Lamar-
Forrest-
306 PM CDT Sat Apr 13 2019

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

.DAY ONE...Tonight and Sunday

SEVERE THUNDERSTORMS
THREAT...Enhanced
TIMING...The rest of this afternoon through tonight

FLOODING
THREAT...Limited
TIMING...The rest of this afternoon through tonight

NON-THUNDERSTORM WINDS
THREAT...Elevated
TIMING...The rest of this afternoon through tonight

A severe weather outbreak is likely Saturday afternoon into early
Sunday morning. Tornadoes, some of which could be strong,
widespread damaging winds up to 70mph, and golf ball to baseball
size hail are likely.

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

Heavy rainfall from multiple rounds of storms could lead to flash
flooding Saturday afternoon into early Sunday morning. 1-2" of
rain with locally higher amounts is expected.

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

A few downed trees and power lines are possible due to sustained
winds ranging from 25 to 30 mph and potential for wind gusts
around 40 mph. Travel will also be difficult for those in high
profile vehicles.

(https://www.weather.gov/images/jan/graphicast/3.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 remainder
of the afternoon through tonight.

3

&&

...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.

*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.

*NON-THUNDERSTORM WINDS*
Significant...Scattered downed trees and power lines are likely
 due to sustained winds over 35 mph and potential wind gusts
 greater than 50 mph.
Elevated...A few downed trees and power lines are possible due
 to sustained winds ranging from 25 to 35 mph and potential for
 wind gusts over 40 mph. Travel will also be difficult for those
 in high profile vehicles.
Limited...Weak trees and limbs may break and fall due to
 sustained winds up to 25 mph and wind gusts around 35 mph.
 High profile vehicles could also be affected.

...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/
...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

In the hours before

Special weather statement, Apr 13, 12:14 PM CDT, 4 hours 33 minutes before
Special Weather Statement
National Weather Service Jackson MS
1214 PM CDT SAT APR 13 2019

LAZ007-008-015-131745-
Richland LA-Morehouse LA-West Carroll LA-
1214 PM CDT SAT APR 13 2019

...A STRONG THUNDERSTORM WILL AFFECT SOUTH CENTRAL MOREHOUSE...
RICHLAND AND SOUTHWESTERN WEST CARROLL PARISHES UNTIL 1245 PM CDT...

At 1214 PM CDT, Meteorologists were tracking a strong thunderstorm
over Alto, or near Mangham, moving northeast at 50 mph.

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

This strong thunderstorm will be near...
  Rayville and Start around 1225 PM CDT.

Other locations impacted by this storm include Collinston, Mer Rouge
and Oak Ridge.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 3249 9193 3252 9190 3254 9192 3284 9183
      3274 9147 3233 9173 3234 9175 3233 9176
      3229 9176 3222 9180 3230 9199
TIME...MOT...LOC 1714Z 203DEG 49KT 3234 9186

BYB
Local storm report, Apr 13, 1:47 PM CDT, 3 hours before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSON MS
147 PM CDT SAT APR 13 2019

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

1255 PM     TSTM WND DMG     RAYVILLE                32.48N 91.76W
04/13/2019                   RICHLAND           LA   LAW ENFORCEMENT

            LAW ENFORCEMENT REPORTED TWO LARGE TREES
            DOWN, ONE FROM LIGHTNING, ONE WIND BLOWN.

&&

TP
Special weather statement, Apr 13, 1:52 PM CDT, 2 hours 55 minutes before
Special Weather Statement
National Weather Service Jackson MS
152 PM CDT SAT APR 13 2019

ARZ074-075-131930-
Chicot AR-Ashley AR-
152 PM CDT SAT APR 13 2019

...A STRONG THUNDERSTORM WILL AFFECT CHICOT AND EASTERN ASHLEY
COUNTIES UNTIL 230 PM CDT...

At 152 PM CDT, Meteorologists were tracking a strong thunderstorm
over Montrose, or 14 miles west of Lake Village, moving north at 55
mph.

Nickel size hail will be possible with this storm.

This strong thunderstorm will be near...
  Dermott around 205 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 3339 9163 3339 9146 3356 9145 3356 9135
      3352 9135 3353 9133 3352 9132 3352 9125
      3356 9123 3353 9122 3351 9118 3347 9121
      3345 9123 3344 9123 3343 9120 3301 9130
      3301 9159 3312 9175
TIME...MOT...LOC 1852Z 201DEG 48KT 3333 9153

BYB
Local storm report, Apr 13, 3:38 PM CDT, 1 hour 9 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSON MS
338 PM CDT SAT APR 13 2019

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

0328 PM     FLASH FLOOD      DERMOTT                 33.52N 91.43W
04/13/2019                   CHICOT             AR   PUBLIC

            PUBLIC REPORTS OF VEHICLE STUCK IN THE 400
            BLOCK S MAIN ST DUE TO FLOODING IN DERMOTT
            AR VIA SOCIAL MEDIA.

&&

TP
Local storm report, Apr 13, 4:27 PM CDT, 20 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSON MS
427 PM CDT SAT APR 13 2019

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

0415 PM     TORNADO          10 WNW NEWELLTON        32.12N 91.39W
04/13/2019                   TENSAS             LA   TRAINED SPOTTER

            REPORTS OF POWER LINES DOWN AND SOME SHEET
            METAL DEBRIS NEAR HIGHWAY 888 BETWEEN
            NEWELLTON AND GILBERT. TORNADO DEBRIS
            SIGNATURE ALSO NOTED ON RADAR. LIKELY
            TORNADO.

&&

JC
Local storm report, Apr 13, 4:42 PM CDT, 5 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSON MS
442 PM CDT SAT APR 13 2019

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

0434 PM     TSTM WND DMG     7 N NEWELLTON           32.18N 91.23W
04/13/2019                   TENSAS             LA   BROADCAST MEDIA

            MULTIPLE POWER POLES BROKEN INTO MULTIPLE
            PIECES NEAR US65 AND HWY 888.

&&

TP

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 12, 8:00 PM CDTSpecial Weather StatementJANCopiah45 min
Apr 12, 10:33 PM CDTSpecial Weather StatementJANAdams, Jefferson42 min
Apr 12, 10:51 PM CDTSevere Thunderstorm WarningJANAdams, Claiborne, Copiah, Franklin, Jefferson39 min
Apr 12, 11:22 PM CDTSpecial Weather StatementJANCopiah38 min
Apr 12, 11:52 PM CDTSevere Thunderstorm WarningJANCopiah, Rankin, Scott, Simpson, Smith38 min
Apr 13, 3:19 AM CDTWind AdvisoryJANAdams, Bolivar, Carroll, Claiborne, Clarke, Copiah and 26 more19 hr
Apr 13, 5:25 AM CDTSpecial Weather StatementJANForrest35 min
Apr 13, 5:39 AM CDTSpecial Weather StatementJANHinds, Madison51 min
Apr 13, 7:08 AM CDTSpecial Weather StatementJANSharkey52 min
Apr 13, 9:25 AM CDTRiver Flood WarningJANClay4 days
Apr 13, 9:59 AM CDTRiver Flood WarningJANLeake10 days
Apr 13, 10:01 AM CDTRiver Flood WarningJANLeake4 days
Apr 13, 10:03 AM CDTRiver Flood WarningJANCopiah, Simpson15 days
Apr 13, 10:03 AM CDTRiver Flood WarningJANLawrence16 days
Apr 13, 10:24 AM CDTRiver Flood WarningJANCarroll, Leflore8 days
Apr 13, 10:24 AM CDTRiver Flood WarningJANHumphreys34 hr
Apr 13, 3:44 PM CDTSevere Thunderstorm WarningJANClaiborne61 min
Apr 13, 4:03 PM CDTSevere Thunderstorm WarningJANIssaquena, Sharkey, Washington57 min
Apr 13, 4:05 PM CDTTornado WarningJANWarren55 min
Apr 13, 4:24 PM CDTSevere Thunderstorm WarningJANBolivar, Sunflower, Washington48 min
Apr 13, 4:42 PM CDTTornado WarningJANHinds, Issaquena, Sharkey, Warren, Yazoo63 min
Apr 13, 4:55 PM CDTSevere Thunderstorm WarningJANHumphreys, Sharkey, Sunflower, Washington51 min
Apr 13, 4:57 PM CDTSevere Thunderstorm WarningJANHinds, Warren48 min
Apr 13, 5:05 PM CDTTornado WarningJANHinds, Issaquena, Warren25 min
Apr 13, 5:23 PM CDTTornado WarningJANHumphreys, Sunflower23 min
Apr 13, 5:27 PM CDTTornado WarningJANMadison, Yazoo63 min
Apr 13, 5:40 PM CDTSevere Thunderstorm WarningJANHinds, Madison50 min
Apr 13, 5:45 PM CDTFlash Flood WarningJANIssaquena, Sharkey, Yazoo3 hr
Apr 13, 5:57 PM CDTTornado WarningJANHinds, Madison, Warren, Yazoo15 min
Apr 13, 6:20 PM CDTFlash Flood WarningJANHinds, Madison3 hr
Apr 13, 6:25 PM CDTSevere Thunderstorm WarningJANAttala, Holmes, Leake, Madison, Yazoo43 min
Apr 13, 6:42 PM CDTTornado WarningJANAttala, Holmes11 min
Apr 12, 11:05 PM CDTSpecial Weather StatementJANFranklin25 min
Apr 13, 5:36 AM CDTSevere Thunderstorm WarningJANMorehouse39 min
Apr 13, 6:11 AM CDTSevere Thunderstorm WarningJANMorehouse, West Carroll51 min
Apr 13, 6:34 AM CDTSevere Thunderstorm WarningJANEast Carroll, West Carroll41 min
Apr 13, 10:53 AM CDTSpecial Weather StatementJANWest Carroll37 min
Apr 13, 11:54 AM CDTSpecial Weather StatementJANMorehouse36 min
Apr 13, 12:14 PM CDTSpecial Weather StatementJANMorehouse, Richland31 min
Apr 13, 12:21 PM CDTSevere Thunderstorm WarningJANMorehouse, Richland, West Carroll39 min
Apr 13, 12:53 PM CDTSevere Thunderstorm WarningJANMorehouse, West Carroll52 min
Apr 13, 2:09 PM CDTFlash Flood WarningJANMorehouse, West Carroll6 hr
Apr 13, 2:44 PM CDTSevere Thunderstorm WarningJANMorehouse61 min
Apr 13, 3:02 PM CDTSevere Thunderstorm WarningJANCatahoula, Concordia, Franklin43 min
Apr 13, 3:09 PM CDTSevere Thunderstorm WarningJANFranklin, Morehouse, Richland66 min
Apr 13, 3:32 PM CDTSevere Thunderstorm WarningJANMorehouse, West Carroll58 min
Apr 13, 3:35 PM CDTTornado WarningJANMorehouse, Richland, West Carroll30 min
Apr 13, 3:49 PM CDTSevere Thunderstorm WarningJANEast Carroll, Franklin, Madison, Richland26 min

Nearby

Flash Flood Warnings in Louisiana, 2019Flash Flood Warnings in Mississippi, 2019Every flash flood warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.