Alert archive / Mississippi / Flash Flood Warnings in 2019

Flash Flood Warning 8, NWS Jackson, MS

February 20, 20196 counties in Mississippi

NWS Jackson, MS issued this flash flood warning at Feb 20, 2019, 9:12 AM CST for 6 counties in Mississippi. It was in force for 4 hr. 4 reports 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
Feb 20, 2019, 9:12 AM CST (15:12 UTC)
Expired
Feb 20, 2019, 1:15 PM CST
In force
4 hr
Issued by
NWS Jackson, MS
Area
Storm-based polygon
Flood severity
None

Counties Covington County, MS, Jefferson Davis County, MS, Lawrence County, MS, Lincoln County, MS, Simpson County, MS, Smith County, MS

The radar

The Jackson/Brandon,MS radar (KDGX), 66 km from the middle of the area, began a volume at 15:13 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
Feb 20, 9:30 AM CSTFLASH FLOOD2 Nnw Enterprise, MSMS 583 BETWEEN HWY 84 AND HOLMESVILLE RD CLOSED DUE TO FLOODING IN MULTIPLE PLACES.
Feb 20, 9:49 AM CSTFLASH FLOOD2 Ssw Merit, MSMS 43 CLOSED BETWEEN MS 13 AND MS 28 DUE TO FLOODING OVER ROADWAY.
Feb 20, 10:00 AM CSTFLASH FLOOD1 N Mendenhall, MSWATER COVERING US 49 ROADWAY BETWEEN MS 13 AND EAST STREET.
Feb 20, 11:30 AM CSTFLASH FLOODCenter Ridge, MSPART OF HWY 37 WAS FLOODED.

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 6 storm reports to this flash flood warning; the first came 18 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, 3.2 hours before the alert went out and 72 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.

602 
WGUS54 KJAN 201512
FFWJAN
MSC031-065-077-085-127-129-201915-
/O.NEW.KJAN.FF.W.0008.190220T1512Z-190220T1915Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Jackson MS
912 AM CST WED FEB 20 2019

The National Weather Service in Jackson has issued a

* Flash Flood Warning for...
  Eastern Simpson County in central Mississippi...
  Smith County in central Mississippi...
  Southeastern Lincoln County in south central Mississippi...
  Lawrence County in south central Mississippi...
  Northern Covington County in southeastern Mississippi...
  Jefferson Davis County in south central Mississippi...

* Until 115 PM CST.

* At 912 AM CST, Doppler radar indicated thunderstorms producing
  heavy rain across the warned area. Flash flooding is expected to
  begin shortly.

* Some locations that will experience flooding include...
  Magee, Collins, Mendenhall, Pinola, Monticello, Raleigh,
  Taylorsville, Prentiss, Mount Olive, Enterprise, Topeka, Bogue
  Chitto, Clem, Sanatorium, Robinwood, Jayess, Shivers, Sontag, Lone
  Star and Wanilla.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3135 9054 3160 9033 3175 9016 3175 9012
      3177 9013 3205 8979 3205 8966 3222 8932
      3181 8932 3180 8940 3174 8940 3139 8988
      3140 9004 3135 9004

$$

EC
2 follow-up statements
230 
WGUS74 KJAN 201558
FFSJAN

Flash Flood Statement
National Weather Service Jackson MS
958 AM CST WED FEB 20 2019

MSC031-065-077-085-127-129-201915-
/O.CON.KJAN.FF.W.0008.000000T0000Z-190220T1915Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Simpson MS-Smith MS-Lincoln MS-Lawrence MS-Covington MS-
Jefferson Davis MS-
958 AM CST WED FEB 20 2019

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 115 PM CST FOR
EASTERN SIMPSON...SMITH...SOUTHEASTERN LINCOLN...LAWRENCE...NORTHERN
COVINGTON AND JEFFERSON DAVIS COUNTIES...

At 956 AM CST, Doppler radar indicated thunderstorms producing heavy
rain across the warned area. Up to three inches of rain have already 
fallen, and additional rainfall of one to two inches will continue 
to bring flash flooding to the area.

Some locations that will experience flooding include...
Magee, Collins, Mendenhall, Pinola, Monticello, Raleigh,
Taylorsville, Prentiss, Mount Olive, Enterprise, Topeka, Bogue
Chitto, Clem, Sanatorium, Robinwood, Jayess, Shivers, Sontag, Lone
Star and Wanilla.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3135 9054 3160 9033 3175 9016 3175 9012
      3177 9013 3205 8979 3205 8966 3222 8932
      3181 8932 3180 8940 3174 8940 3139 8988
      3140 9004 3135 9004

$$

EC
869 
WGUS74 KJAN 201736
FFSJAN

Flash Flood Statement
National Weather Service Jackson MS
1136 AM CST WED FEB 20 2019

MSC031-065-077-085-127-129-201915-
/O.CON.KJAN.FF.W.0008.000000T0000Z-190220T1915Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Simpson MS-Smith MS-Lincoln MS-Lawrence MS-Covington MS-
Jefferson Davis MS-
1136 AM CST WED FEB 20 2019

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 115 PM CST FOR
EASTERN SIMPSON...SMITH...SOUTHEASTERN LINCOLN...LAWRENCE...NORTHERN
COVINGTON AND JEFFERSON DAVIS COUNTIES...

At 1134 AM CST, flash flooding was being reported and water is 
remaining high as rain continues to fall over the warning area. 
Rainfall amounts of up to six inches have occurred in the past few 
hours, particularly from eastern Lincoln County to central and 
eastern Simpson County. Expect flooding to continue into the early 
afternoon.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3135 9054 3160 9033 3175 9016 3175 9012
      3177 9013 3205 8979 3205 8966 3222 8932
      3181 8932 3180 8940 3174 8940 3139 8988
      3140 9004 3135 9004

$$

EC

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 Feb 20, 5:59 AM CST, 3 hours 13 minutes earlier.

Area forecast discussion, Feb 20, 5:59 AM CST, 3 hours 13 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, 4 hours 6 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

Local storm report, Feb 20, 7:33 AM CST, 1 hour 39 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, 1 hour 15 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, 41 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
Local storm report, Feb 20, 8:51 AM CST, 21 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSON MS
851 AM CST WED FEB 20 2019

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

0835 AM     FLASH FLOOD      1 NE POLKVILLE          32.21N 89.68W
02/20/2019                   SMITH              MS   EMERGENCY MNGR

            PART OF SCR 538 CLOSED DUE TO FLOODING.

&&

AW
Special weather statement, Feb 20, 8:59 AM CST, 13 minutes before
Special Weather Statement
National Weather Service Jackson MS
859 AM CST WED FEB 20 2019

MSZ055-056-201530-
Smith MS-Simpson MS-
859 AM CST WED FEB 20 2019

...A STRONG THUNDERSTORM WILL AFFECT EASTERN SIMPSON AND CENTRAL
SMITH COUNTIES UNTIL 930 AM CST...

At 859 AM CST, Meteorologists were tracking a strong thunderstorm
over Pinola, moving northeast at 50 mph.

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

This strong thunderstorm will be near...
  Mendenhall around 905 AM CST.
  Magee and Sanatorium around 910 AM CST.
  Martinville around 915 AM CST.
  White Oak around 920 AM CST.
  Raleigh and Burns around 930 AM CST.

Other locations impacted by this storm include 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.

&&

LAT...LON 3189 9004 3205 8981 3205 8973 3210 8973
      3222 8956 3200 8938 3176 8988 3177 8995
TIME...MOT...LOC 1459Z 236DEG 43KT 3187 8991

GRG
Special weather statement, Feb 20, 9:01 AM CST, 11 minutes before
Special Weather Statement
National Weather Service Jackson MS
901 AM CST WED FEB 20 2019

MSZ062>064-201530-
Lawrence MS-Jefferson Davis MS-Lincoln MS-
901 AM CST WED FEB 20 2019

...A STRONG THUNDERSTORM WILL AFFECT EAST CENTRAL LINCOLN...NORTHERN
LAWRENCE AND NORTHWESTERN JEFFERSON DAVIS COUNTIES UNTIL 930 AM
CST...

At 900 AM CST, Meteorologists were tracking a strong thunderstorm
near Sontag, or 13 miles east of Brookhaven, moving northeast at 50
mph.

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

This strong thunderstorm will be near...
  Monticello around 905 AM CST.
  Wanilla and Oma around 910 AM CST.
  Clem around 930 AM CST.

Other locations impacted by this storm include New Hebron and Silver
Creek.

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 3162 9035 3175 9016 3175 9015 3176 9013
      3175 9009 3177 8976 3169 8976 3147 9023
TIME...MOT...LOC 1500Z 236DEG 43KT 3160 9021

GRG

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, 8:38 AM CSTTornado WarningJANNewton, Scott24 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, 9:20 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

Flash 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.