Alert archive / Arkansas / Flash Flood Warnings in 2019

Flash Flood Warning 49, NWS Jackson, MS

May 9, 2019Ashley County, Chicot County, Arkansas; Morehouse Parish, Louisiana; Washington County, Mississippi

NWS Jackson, MS issued this flash flood warning at May 9, 2019, 4:31 AM CDT for Ashley County, Chicot County, Arkansas; Morehouse Parish, Louisiana; Washington County, Mississippi. It was in force for 4 hr. 11 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
May 9, 2019, 4:31 AM CDT (09:31 UTC)
Expired
May 9, 2019, 8:30 AM CDT
In force
4 hr
Issued by
NWS Jackson, MS
Area
Storm-based polygon
Flood severity
None

Counties Ashley County, AR, Chicot County, AR, Morehouse Parish, LA, Washington County, MS

The radar

The Jackson/Brandon,MS radar (KDGX), 181 km from the middle of the area, began a volume at 09:33 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What was reported inside it

TimeReportWhereRemark
May 9, 6:05 AM CDTFLASH FLOOD1 Nw Lake Village, ARSEVERAL ROADS FLOODED ACROSS THE COUNTY.
May 9, 6:14 AM CDTFLASH FLOOD5 Ne Stoneville, MSSEVERAL STREETS FLOODED ACROSS NORTHERN WASHINGTON COUNTY.
May 9, 6:22 AM CDTFLASH FLOODBonita, LANUMEROUS ROADS FLOODED ACROSS THE NORTHERN PORTION OF THE PARISH.
May 9, 6:30 AM CDTFLASH FLOOD1 Ese Greenville, MSNUMEROUS ROADS FLOODED ACROSS THE CITY. WATER IS ENTERING SEVERAL BUILDINGS AND MOTORISTS ARE BEING RESCUED FROM STRANDED VEHICLES.
May 9, 7:05 AM CDTFLASH FLOOD1 S Dermott, ARPICTURES OF STREET FLOODING OVER THE CURBS ALONG GIBSON CIRCLE DRIVE AND MAIN STREET IN DERMOTT WERE RELAYED VIA TWITTER.
May 9, 7:15 AM CDTFLASH FLOODEudora, AR24-HOUR RAINFALL TOTAL OF 5.36 INCHES. MANY ROADS WERE FLOODED AND SEVERAL HOMES WERE BEGINNING TO FLOOD.
May 9, 7:18 AM CDTFLASH FLOODDermott, ARPICTURE OF STREET FLOODING OVER CURBS ALONG FREEMAN STREET WAS RELAYED VIA TWITTER.
May 9, 7:59 AM CDTFLOODLake Village, ARPICTURES OF FLOODING AT THE LAKESIDE SCHOOL DISTRICT WERE RELAYED VIA TWITTER.
May 9, 8:20 AM CDTFLASH FLOODDermott, ARWIDESPREAD FLOODING IN DERMOTT. ONE FAMILY WAS BEING RESCUED FROM A FLOODED HOME ALONG FREEMAN STREET.
May 9, 8:30 AM CDTHEAVY RAIN 4.733 E North Crossett, AREVENT TOTAL RAINFALL FROM A PERSONAL WEATHER STATION AT CROSSETT MUNICIPAL AIRPORT.
May 9, 8:30 AM CDTHEAVY RAIN 5.741 Wsw Crossett, AREVENT TOTAL RAINFALL FROM A PERSONAL WEATHER STATION IN CROSSETT.

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 8 storm reports to this flash flood warning; the first came 94 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 00:00Z, 9.5 hours before the alert went out and 171 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Jackson, MS at 00:00Z on 2019-05-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 787 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Jackson, MS at 00:00Z on 2019-05-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 127 square meters per square second.193958Sfc1 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
787 J/kg
Mixed-layer CIN
-56 J/kg
Mixed-layer LCL
1008 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
127 m²/s²
0-3 km storm-relative helicity
203 m²/s²
Significant tornado parameter
0.3
Supercell composite
2.5

Open this sounding in Storm Lab

The text

As transmitted.

959 
WGUS54 KJAN 090931
FFWJAN
ARC003-017-LAC067-MSC151-091130-
/O.NEW.KJAN.FF.W.0049.190509T0931Z-190509T1130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Jackson MS
431 AM CDT Thu May 9 2019

The National Weather Service in Jackson has issued a

* Flash Flood Warning for...
  Chicot County in southeastern Arkansas...
  Ashley County in southeastern Arkansas...
  Morehouse Parish in northeastern Louisiana...
  Washington County in northwestern Mississippi...

* Until 630 AM CDT.

* At 429 AM CDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Up to four inches of rain have 
  already fallen. Flash flooding is expected to begin shortly.

* Some locations that will experience flooding include...
  Greenville, Bastrop, Crossett, Leland, Hamburg, Lake Village,
  Dermott, Eudora, Wilmot, North Crossett, Avon, West Crossett,
  Metcalfe, Portland, Montrose, Parkdale, Fountain Hill, Wayside,
  Beekman and Lamont.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3321 9213 3331 9198 3340 9199 3339 9146
      3356 9145 3352 9132 3352 9125 3356 9124
      3353 9076 3333 9076 3300 9117 3301 9143
      3285 9157 3262 9166 3252 9190 3266 9191
      3271 9206 3301 9207 3310 9214

$$

TW
1 follow-up statement
632 
WGUS54 KJAN 091108
FFWJAN
ARC003-017-LAC067-MSC151-091330-
/O.EXT.KJAN.FF.W.0049.000000T0000Z-190509T1330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Jackson MS
608 AM CDT Thu May 9 2019

The National Weather Service in Jackson has extended the

* Flash Flood Warning for...
  Chicot County in southeastern Arkansas...
  Ashley County in southeastern Arkansas...
  Morehouse Parish in northeastern Louisiana...
  Washington County in northwestern Mississippi...

* Until 830 AM CDT.

* At 607 AM CDT, local law enforcement reported ongoing flash 
  flooding across the warned area. Up to five inches of rain has 
  fallen. Flash flooding is already occurring.

* Some locations that will experience flooding include...
  Greenville, Bastrop, Crossett, Leland, Hamburg, Lake Village,
  Dermott, Eudora, Wilmot, North Crossett, Avon, West Crossett,
  Metcalfe, Portland, Montrose, Parkdale, Fountain Hill, Wayside,
  Beekman and Lamont.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3321 9213 3331 9198 3340 9199 3339 9146
      3356 9145 3352 9132 3352 9125 3356 9124
      3353 9076 3333 9076 3300 9117 3301 9143
      3285 9157 3262 9166 3252 9190 3266 9191
      3271 9206 3301 9207 3310 9214

$$

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 May 9, 1:21 AM CDT, 3 hours 10 minutes earlier.

Area forecast discussion, May 9, 1:21 AM CDT, 3 hours 10 minutes before
Area Forecast Discussion
National Weather Service Jackson MS
121 AM CDT Thu May 9 2019

.UPDATE...
Updated for 06Z aviation discussion

&&

.AVIATION...
06Z TAF discussion:

Poor aviation weather is expected this forecast period due to
occasional periods of SHRA/TSRA moving across the area and
considerable amounts of MVFR/IFR category ceilings in the very
humid airmass. Sfc wind could be gusty and somewhat variable
and dependent on individual convective storms. /EC/

&&

.DISCUSSION...
It has been a rather busy evening at the WFO. An overachieving MCS
has thrown a bit of a wrench into the forecast, making further
south and eastward progress than previously anticipated and
bringing damaging wind gusts along with it. Over the past 2-3
hours, the line has begun to slow down and gradually weaken and
this trend is expected to continue over the next few hours as the
line continues eastward toward the AL line. SPC mesoanalysis shows
effective SRH on a downward trend as the line continues eastward,
so the tornado threat is dwindling considerably. We still can't
rule out some stronger wind gusts before the line moves out of the
area. We'll aggressively clear counties from the Tornado Watch
behind the line.

Pretty much our entire suite of model guidance has handled this
situation poorly, which makes trying to figure out what will
happen overnight more complicated. Typically in this situation,
one might expect the MCS to stabilize the atmosphere for the
remainder of the night. However, with a very strong low level jet
developing overnight across AR/LA/west MS and SPC mesoanalysis
already showing strong low level moisture transport northward
across this region, redevelopment is very much possible. In fact,
some redevelopment is already ongoing across western LA right now.
Thus we will maintain higher POPs for the overnight hours across
much of the Delta and areas west of the MS River. Given the lack
of confidence in what specific area might receive the highest
rainfall amounts overnight, we'll not change the configuration of
the Flash Flood Watch at this stage. Flash flooding will be a
hazard to monitor closely overnight, though, given the heavy rain
that has already fallen in many areas in association with this
evening's MCS. Forecast updates have already been sent. /DL/

Prior discussion below:

Tonight through Friday Night:

An element of the short-term forecast to watch for is the
potential for flash flooding. The MCS moving into the area this
evening will bring storms producing heavy rainfall, and we will
continue the Flash Flood Watch for far northwestern portions of
the area heading into tomorrow. As the MCS decays overnight, the
outflow boundary may help to focus additional re-development of
heavy showers and storms overnight into tomorrow morning. With an
expected 40-50kt low level jet interacting with such an outflow
boundary, this overnight convection could overachieve with
rainfall production. Some of the hi-res guidance has backed off
from earlier depictions of intense rainfall, but we will continue
to monitor for signs of training storms setting up overnight.
Apart from the Flash Flood Watch, we will continue to advertise an
Elevated threat for flash flooding across areas which are already
waterlogged after weeks of heavy rain events.

During the day on Thursday, wherever the outflow boundary starts the
day, expect this to be the focus for the new day's thunderstorm
development. Storms should build south and east throughout the day as
they propagate into the unstable airmass. Given some spatial
uncertainties following tonight's round of convection, the Slight
risk for severe weather has been expanded to cover the entire
forecast area. Damaging wind gusts and possibly some hail will be
the primary severe weather hazards, and the possibility of training,
slow-moving thunderstorms will expand the threat for flash flooding
across the area tomorrow. Again, the greatest risk for flash
flooding will be where soils are already saturated, but high rain
rates and the possibility for training storms will keep the threat
for at least localized flooding a concern through the day. /NF/

Friday through Tuesday...

A wet pattern will continue Friday through the weekend as the region
remains under southwest flow aloft. A front will stall generally
across the central part of the forecast area. Several disturbances
will move across the front, which will result in a period of
prolonged of heavy rain, and subsequently flash flooding. While
severe weather cannot be completely ruled out during the latter
portions of the week, this is something that will need to be
assessed on a smaller scale from residual boundaries/heating/shear,
etc. The bigger concern during this time period will be from the
continued rainfall, leading to flooding issues. After the forecasted
amounts of 3-4.5 inches in the Delta(1-2 inches elsewhere) in the
short term, another 2-3.5 inches of rain will be possible in the
west from Friday through Saturday night. 1-2 inches will be possible
elsewhere. Will continue to message this in our HWO and graphics for
an extended period and the Flash Flood Watch will likely need to be
extended in area and time at some point.

The rain will finally move out of the region later Sunday night as
the upper trough pushes through the region. Upper ridging and
surface high pressure will move into the region for the early
portions of the week. Drier air will move in and conditions look
rather pleasant across the area. /28/

&&

.PRELIMINARY POINT TEMPS/POPS...
Jackson       82  68  79  65 /  84  61  92  63
Meridian      86  67  82  65 /  84  58  88  54
Vicksburg     83  68  76  65 /  92  65  88  64
Hattiesburg   87  69  83  66 /  84  65  87  33
Natchez       85  70  77  65 /  82  74  93  62
Greenville    81  65  72  63 /  92  49  78  65
Greenwood     80  66  75  64 /  92  47  82  68

&&

.JAN WATCHES/WARNINGS/ADVISORIES...
MS...Flash Flood Watch through this evening for MSZ018-034.

LA...Flash Flood Watch through this evening for LAZ007.

AR...Flash Flood Watch through this evening for ARZ074-075.

&&
Hazardous weather outlook, May 8, 4:48 PM CDT, 11 hours 43 minutes before
Hazardous Weather Outlook
National Weather Service Jackson MS
448 PM CDT Wed May 8 2019

ARZ074-075-LAZ007>009-015-016-023>026-MSZ018-019-034-035-040-041-
047-092200-
Ashley-Chicot-Morehouse-West Carroll-East Carroll-Richland-
Madison LA-Franklin LA-Catahoula-Tensas-Concordia-Bolivar-
Sunflower-Washington-Humphreys-Issaquena-Sharkey-Warren-
448 PM CDT Wed May 8 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 Thursday

SEVERE THUNDERSTORMS
THREAT...Slight
TIMING...Tonight through Thursday

FLOODING
THREAT...Elevated
TIMING...Tonight through Thursday

Severe thunderstorms are possible through this evening and again
during the day on Thursday. These thunderstorms could produce
damaging winds to 60 mph, hail up to the size of quarters, and a
few tornadoes.

(https://www.weather.gov/images/jan/graphicast/1.png)
(https://www.weather.gov/images/jan/graphicast/3.png)

Areas of flash flooding are possible through Thursday, and some
roads could be flooded or closed. Some structures may be
potentially threatened by high water.

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

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

The threat for strong to severe thunderstorms and flash flooding
will continue into the weekend with additional rounds of
thunderstorms through that time.

(https://www.weather.gov/images/jan/graphicast/2.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 tonight
through Thursday night.

MSZ029-032-037-092200-
Webster-Choctaw-Attala-
448 PM CDT Wed May 8 2019

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

.DAY ONE...Tonight and Thursday

FLOODING
THREAT...Elevated
TIMING...Tonight through Thursday

SEVERE THUNDERSTORMS
THREAT...Slight
TIMING...Thursday

Areas of flash flooding are possible through Thursday, and some
roads could be flooded or closed. Some structures may be
potentially threatened by high water.

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

Severe thunderstorms are possible on Thursday. These
thunderstorms could produce damaging winds to 60 mph, hail up to
the size of quarters, and a few tornadoes.

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

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

The threat for strong to severe thunderstorms and flash flooding
will continue into the weekend with additional rounds of
thunderstorms through that time.

(https://www.weather.gov/images/jan/graphicast/2.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 Thursday
through Thursday night.

MSZ025>028-036-042-092200-
Leflore-Grenada-Carroll-Montgomery-Holmes-Yazoo-
448 PM CDT Wed May 8 2019

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

.DAY ONE...Tonight and Thursday

FLOODING
THREAT...Elevated
TIMING...Tonight through Thursday

SEVERE THUNDERSTORMS
THREAT...Slight
TIMING...Mainly Thursday

Areas of flash flooding are possible through Thursday, and some
roads could be flooded or closed. Some structures may be
potentially threatened by high water.

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

Severe thunderstorms are possible through this evening and again
during the day on Thursday. These thunderstorms could produce
damaging winds to 60 mph, hail up to the size of quarters, and a
few tornadoes.

(https://www.weather.gov/images/jan/graphicast/1.png)
(https://www.weather.gov/images/jan/graphicast/3.png)

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

The threat for strong to severe thunderstorms and flash flooding
will continue into the weekend with additional rounds of
thunderstorms through that time.

(https://www.weather.gov/images/jan/graphicast/2.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 tonight
through Thursday night.

MSZ030-031-033-038-039-044>046-050>052-055>058-063>066-072>074-
092200-
Clay-Lowndes-Oktibbeha-Winston-Noxubee-Leake-Neshoba-Kemper-Scott-
Newton-Lauderdale-Simpson-Smith-Jasper-Clarke-Lawrence-
Jefferson Davis-Covington-Jones-Marion-Lamar-Forrest-
448 PM CDT Wed May 8 2019

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

.DAY ONE...Tonight and Thursday

FLOODING
THREAT...Limited
TIMING...Tonight through Thursday

SEVERE THUNDERSTORMS
THREAT...Slight
TIMING...Thursday

Localized flash flooding is possible through Thursday,
particularly in low lying and urban areas.

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

Severe thunderstorms are possible on Thursday. These
thunderstorms could produce damaging winds to 60 mph, hail up to
the size of quarters, and a few tornadoes.

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

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

The threat for strong to severe thunderstorms and flash flooding
will continue into the weekend with additional rounds of
thunderstorms through that time.

(https://www.weather.gov/images/jan/graphicast/2.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 Thursday
through Thursday night.

MSZ043-048-049-053-054-059-061-062-092200-
Madison MS-Hinds-Rankin-Claiborne-Copiah-Jefferson-Franklin MS-
Lincoln-
448 PM CDT Wed May 8 2019

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

.DAY ONE...Tonight and Thursday

FLOODING
THREAT...Limited
TIMING...Tonight through Thursday

SEVERE THUNDERSTORMS
THREAT...Slight
TIMING...Mainly Thursday

Localized flash flooding is possible through Thursday,
particularly in low lying and urban areas.

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

Severe thunderstorms are possible through this evening and again
during the day on Thursday. These thunderstorms could produce
damaging winds to 60 mph, hail up to the size of quarters, and a
few tornadoes.

(https://www.weather.gov/images/jan/graphicast/1.png)
(https://www.weather.gov/images/jan/graphicast/3.png)

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

The threat for strong to severe thunderstorms and flash flooding
will continue into the weekend with additional rounds of
thunderstorms through that time.

(https://www.weather.gov/images/jan/graphicast/2.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 tonight
through Thursday night.

MSZ060-092200-
Adams-
448 PM CDT Wed May 8 2019

This hazardous weather outlook is for portions of southwest
Mississippi.

.DAY ONE...Tonight and Thursday

SEVERE THUNDERSTORMS
THREAT...Slight
TIMING...Tonight through Thursday

FLOODING
THREAT...Limited
TIMING...Tonight through Thursday

Severe thunderstorms are possible through this evening and again
on Thursday. These thunderstorms could produce damaging winds to
60 mph, hail up to the size of quarters, and a few tornadoes.

(https://www.weather.gov/images/jan/graphicast/1.png)
(https://www.weather.gov/images/jan/graphicast/3.png)

Localized flash flooding is possible through Thursday,
particularly in low lying and urban areas.

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

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

The threat for strong to severe thunderstorms and flash flooding
will continue into the weekend with additional rounds of
thunderstorms through that time.

(https://www.weather.gov/images/jan/graphicast/2.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 tonight
through Thursday night.

NF

&&

...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.

...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, May 9, 12:09 AM CDT, 4 hours 22 minutes before
Special Weather Statement
National Weather Service Jackson MS
1209 AM CDT Thu May 9 2019

MSZ063-064-072-090600-
Lawrence MS-Jefferson Davis MS-Marion MS-
1209 AM CDT Thu May 9 2019

...A STRONG THUNDERSTORM WILL AFFECT NORTHERN MARION...SOUTHEASTERN
LAWRENCE AND SOUTHWESTERN JEFFERSON DAVIS COUNTIES THROUGH 100 AM
CDT...

At 1209 AM CDT, Meteorologists were tracking a strong thunderstorm
over Tilton, or 17 miles north of Kokomo, moving east at 30 mph.

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

Locations impacted include...
Columbia, Holly Springs, Monticello, Prentiss, Progress, Morgantown,
Goss, Bunker Hill, Tilton, Oak Vale, Robinwood, Society Hill, Arm,
Carson and Bassfield.

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 3128 9004 3134 9004 3133 9008 3134 9009
      3134 9011 3135 9011 3135 9015 3156 9013
      3161 8979 3161 8974 3159 8971 3127 8970
TIME...MOT...LOC 0509Z 265DEG 27KT 3144 9006

DL
Special weather statement, May 9, 12:50 AM CDT, 3 hours 41 minutes before
Special Weather Statement
National Weather Service Jackson MS
1250 AM CDT Thu May 9 2019

MSZ064-065-090630-
Jefferson Davis MS-Covington MS-
1250 AM CDT Thu May 9 2019

...A STRONG THUNDERSTORM WILL AFFECT COVINGTON AND SOUTHEASTERN
JEFFERSON DAVIS COUNTIES UNTIL 130 AM CDT...

At 1249 AM CDT, Meteorologists were tracking a strong thunderstorm
near Carson, or 11 miles southwest of Collins, moving east at 30 mph.

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

This strong thunderstorm will be near...
  Collins around 110 AM CDT.

Other locations impacted by this storm include Seminary.

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 3159 8971 3161 8976 3165 8976 3175 8940
      3143 8940 3143 8971
TIME...MOT...LOC 0549Z 252DEG 28KT 3153 8972

TW
Special weather statement, May 9, 1:41 AM CDT, 2 hours 50 minutes before
Special Weather Statement
National Weather Service Jackson MS
141 AM CDT Thu May 9 2019

LAZ007-090730-
Morehouse LA-
141 AM CDT Thu May 9 2019

...A STRONG THUNDERSTORM WILL AFFECT NORTHWESTERN MOREHOUSE PARISH
UNTIL 230 AM CDT...

At 141 AM CDT, Meteorologists were tracking a strong thunderstorm
near Sterlington, or 8 miles northeast of Claiborne, moving northeast
at 40 mph.

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

This strong thunderstorm will be near...
  Bastrop around 200 AM CDT.
  Beekman around 215 AM 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 3301 9207 3301 9162 3266 9194 3268 9196
      3271 9197 3270 9202 3271 9204 3270 9204
      3269 9205 3270 9205 3273 9207 3274 9205
      3276 9206 3279 9205 3282 9207 3284 9206
      3287 9208 3293 9207 3297 9208
TIME...MOT...LOC 0641Z 213DEG 35KT 3264 9211

TW
Special weather statement, May 9, 3:20 AM CDT, 1 hour 11 minutes before
Special Weather Statement
National Weather Service Jackson MS
320 AM CDT Thu May 9 2019

LAZ007-090900-
Morehouse LA-
320 AM CDT Thu May 9 2019

...A STRONG THUNDERSTORM WILL AFFECT MOREHOUSE PARISH UNTIL 400 AM
CDT...

At 319 AM CDT, Meteorologists were tracking a strong thunderstorm
near Sterlington, or 7 miles southwest of Bastrop, 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...
  Bastrop around 325 AM CDT.
  Galion and Beekman around 340 AM CDT.
  Jones around 355 AM CDT.

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

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 3274 9205 3276 9206 3280 9205 3301 9191
      3301 9146 3258 9192 3261 9193 3266 9191
      3267 9193 3266 9194 3268 9196 3271 9197
      3270 9202 3271 9204 3270 9204 3269 9205
      3273 9207
TIME...MOT...LOC 0819Z 226DEG 42KT 3269 9199

TW
Special weather statement, May 9, 3:59 AM CDT, 32 minutes before
Special Weather Statement
National Weather Service Jackson MS
359 AM CDT Thu May 9 2019

ARZ075-MSZ034-090930-
Chicot AR-Washington MS-
359 AM CDT Thu May 9 2019

...A STRONG THUNDERSTORM WILL AFFECT NORTHEASTERN CHICOT AND
NORTHWESTERN WASHINGTON COUNTIES UNTIL 430 AM CDT...

At 359 AM CDT, Meteorologists were tracking a strong thunderstorm
near Greenville, moving northeast at 40 mph.

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

This strong thunderstorm will be near...
  Greenville, Leland, Metcalfe and Winterville around 415 AM 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 3353 9076 3348 9076 3323 9114 3335 9127
      3353 9106
TIME...MOT...LOC 0859Z 224DEG 36KT 3335 9113

TW
Special weather statement, May 9, 4:18 AM CDT, 13 minutes before
Special Weather Statement
National Weather Service Jackson MS
418 AM CDT Thu May 9 2019

ARZ074-075-091000-
Chicot AR-Ashley AR-
418 AM CDT Thu May 9 2019

...A STRONG THUNDERSTORM WILL AFFECT SOUTHERN CHICOT AND SOUTHEASTERN
ASHLEY COUNTIES UNTIL 500 AM CDT...

At 418 AM CDT, Meteorologists were tracking a strong thunderstorm 7
miles southeast of Parkdale, or 7 miles east of Wilmot, moving
northeast at 40 mph.

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

This strong thunderstorm will be near...
  Eudora around 435 AM CDT.
  Chicot Junction around 440 AM CDT.
  Lake Village around 445 AM 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 3343 9122 3340 9120 3336 9113 3335 9114
      3330 9114 3327 9112 3327 9113 3324 9110
      3300 9137 3301 9152 3308 9156
TIME...MOT...LOC 0918Z 224DEG 36KT 3306 9144

TW

The office that day

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

IssuedProductOfficeCountiesLasted
May 8, 7:14 PM CDTSevere Thunderstorm WarningJANAshley, Chicot61 min
May 9, 4:18 AM CDTSpecial Weather StatementJANChicot42 min
May 9, 5:29 AM CDTSpecial Weather StatementJANChicot31 min
May 8, 7:02 PM CDTSevere Thunderstorm WarningJANEast Carroll, Madison, Tensas, West Carroll73 min
May 8, 7:08 PM CDTTornado WarningJANEast Carroll, West Carroll45 min
May 8, 7:10 PM CDTSevere Thunderstorm WarningJANConcordia, Tensas65 min
May 9, 1:41 AM CDTSpecial Weather StatementJANMorehouse49 min
May 9, 3:20 AM CDTSpecial Weather StatementJANMorehouse40 min
May 9, 5:51 AM CDTSpecial Weather StatementJANFranklin, Richland24 min
May 9, 6:41 AM CDTSevere Thunderstorm WarningJANCatahoula, Franklin, Tensas64 min
May 9, 7:05 AM CDTSevere Thunderstorm WarningJANFranklin, Madison40 min
May 9, 7:15 AM CDTSevere Thunderstorm WarningJANTensas30 min
May 9, 7:35 AM CDTSevere Thunderstorm WarningJANMadison55 min
May 9, 7:48 AM CDTFlash Flood WarningJANCatahoula, Franklin, Madison, Tensas117 min
May 9, 8:56 AM CDTTornado WarningJANConcordia, Tensas64 min
May 9, 9:08 AM CDTSevere Thunderstorm WarningJANTensas67 min
May 9, 11:27 AM CDTRiver Flood WarningJANTensas18 days
May 9, 11:36 AM CDTRiver Flood WarningJANAvoyelles, Catahoula, Concordia25 days
May 8, 7:30 PM CDTSevere Thunderstorm WarningJANClaiborne, Issaquena, Sharkey, Warren75 min
May 8, 7:34 PM CDTSevere Thunderstorm WarningJANAdams, Claiborne, Franklin, Jefferson71 min
May 8, 7:41 PM CDTSevere Thunderstorm WarningJANBolivar, Sharkey, Washington54 min
May 8, 8:11 PM CDTSevere Thunderstorm WarningJANHolmes, Humphreys, Leflore, Sunflower79 min
May 8, 8:18 PM CDTSevere Thunderstorm WarningJANHinds, Madison, Rankin, Yazoo72 min
May 8, 8:27 PM CDTSevere Thunderstorm WarningJANCopiah, Lincoln48 min
May 8, 8:56 PM CDTSevere Thunderstorm WarningJANCarroll, Grenada, Holmes, Montgomery79 min
May 8, 9:28 PM CDTSevere Thunderstorm WarningJANHinds, Madison, Rankin, Yazoo50 min
May 8, 9:45 PM CDTSevere Thunderstorm WarningJANChoctaw, Montgomery, Webster75 min
May 8, 9:55 PM CDTSevere Thunderstorm WarningJANAttala, Leake55 min
May 9, 12:09 AM CDTSpecial Weather StatementJANJefferson Davis, Lawrence51 min
May 9, 12:50 AM CDTSpecial Weather StatementJANCovington40 min
May 9, 3:59 AM CDTSpecial Weather StatementJANWashington31 min
May 9, 4:33 AM CDTSpecial Weather StatementJANSunflower27 min
May 9, 5:16 AM CDTFlash Flood WarningJANBolivar, Leflore, Sunflower5 hr
May 9, 6:09 AM CDTSpecial Weather StatementJANHumphreys36 min
May 9, 6:34 AM CDTFlash Flood WarningJANCarroll, Grenada, Montgomery3 hr
May 9, 6:39 AM CDTSpecial Weather StatementJANCarroll, Holmes51 min
May 9, 7:19 AM CDTSpecial Weather StatementJANAttala, Montgomery, Webster41 min
May 9, 7:27 AM CDTSpecial Weather StatementJANMadison, Yazoo48 min
May 9, 7:32 AM CDTSevere Thunderstorm WarningJANAttala, Holmes, Madison, Yazoo58 min
May 9, 8:01 AM CDTFlash Flood WarningJANHolmes, Humphreys, Issaquena, Sharkey, Washington, Yazoo119 min
May 9, 8:05 AM CDTSevere Thunderstorm WarningJANLeake, Madison, Neshoba, Rankin, Scott55 min
May 9, 8:22 AM CDTSevere Thunderstorm WarningJANHinds, Madison, Rankin, Scott, Smith53 min
May 9, 8:34 AM CDTSevere Thunderstorm WarningJANMadison, Rankin26 min
May 9, 8:39 AM CDTSpecial Weather StatementJANClay, Lowndes, Oktibbeha36 min
May 9, 8:43 AM CDTTornado WarningJANHinds, Madison, Rankin19 min
May 9, 9:04 AM CDTSevere Thunderstorm WarningJANLeake, Madison, Rankin, Scott, Smith56 min
May 9, 9:12 AM CDTFlash Flood WarningJANHinds, Madison, Rankin2 hr
May 9, 10:26 AM CDTFlash Flood Warning EmergencyJANHinds, Madison, Rankin49 min
May 9, 10:29 AM CDTRiver Flood WarningJANNeshoba7 days
May 9, 10:37 AM CDTSevere Thunderstorm WarningJANRankin, Scott, Simpson, Smith68 min
May 9, 11:10 AM CDTFlash Flood WarningJANScott, Smith90 min
May 9, 11:27 AM CDTTornado WarningJANLawrence, Lincoln36 min
May 9, 11:32 AM CDTSevere Thunderstorm WarningJANJefferson Davis, Lawrence58 min
May 9, 11:49 AM CDTRiver Flood WarningJANMadison, Yazoo21 days
May 9, 11:49 AM CDTRiver Flood WarningJANHinds, Warren14 days
May 9, 11:57 AM CDTFlash Flood WarningJANClarke, Jasper, Lauderdale, Newton96 min
May 9, 12:27 PM CDTSevere Thunderstorm WarningJANClarke, Jasper, Jones, Lauderdale, Smith48 min
May 9, 12:32 PM CDTSevere Thunderstorm WarningJANCovington, Forrest, Jefferson Davis, Jones, Lamar, Marion58 min
May 9, 1:26 PM CDTSevere Thunderstorm WarningJANForrest, Jones, Lamar64 min
May 9, 1:38 PM CDTSpecial Weather StatementJANLamar37 min
May 9, 2:38 PM CDTRiver Flood WarningJANLeake9 days
May 9, 2:38 PM CDTRiver Flood WarningJANLeake6 days
May 9, 2:40 PM CDTRiver Flood WarningJANCopiah, Simpson10 days
May 9, 2:40 PM CDTRiver Flood WarningJANLawrence12 days
May 9, 2:40 PM CDTRiver Flood WarningJANMarion11 days
May 9, 3:02 PM CDTSpecial Weather StatementJANForrest28 min
May 9, 3:18 PM CDTRiver Flood WarningJANNoxubee4 days

Nearby

Flash Flood Warnings in Arkansas, 2019Flash 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.