Alert archive / Louisiana / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 244, NWS Jackson, MS

June 22, 2018Issaquena County, Mississippi; 5 parishes in Louisiana

NWS Jackson, MS issued this severe thunderstorm warning at Jun 22, 2018, 10:31 AM CDT for Issaquena County, Mississippi; 5 parishes in Louisiana. It was in force for 59 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Jun 22, 2018, 10:31 AM CDT (15:31 UTC)
Expired
Jun 22, 2018, 11:30 AM CDT
In force
59 min
Issued by
NWS Jackson, MS
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties East Carroll Parish, LA, Madison Parish, LA, Morehouse Parish, LA, Richland Parish, LA, West Carroll Parish, LA, Issaquena County, MS

The radar

The Jackson/Brandon,MS radar (KDGX), 158 km from the middle of the area, began a volume at 15:35 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

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

Did it verify

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

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The nearest sounding before it

Jackson, MS (KJAN), launched 12:00Z, 3.5 hours before the alert went out and 148 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 2018-06-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1953 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 2018-06-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 59 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
1953 J/kg
Mixed-layer CIN
-19 J/kg
Mixed-layer LCL
515 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
59 m²/s²
0-3 km storm-relative helicity
111 m²/s²
Significant tornado parameter
0.4
Supercell composite
2.1

Open this sounding in Storm Lab

The text

As transmitted.

520 
WUUS54 KJAN 221531
SVRJAN
LAC035-065-067-083-123-MSC055-221630-
/O.NEW.KJAN.SV.W.0244.180622T1531Z-180622T1630Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Jackson MS
1031 AM CDT FRI JUN 22 2018

The National Weather Service in Jackson has issued a

* Severe Thunderstorm Warning for...
  Southwestern Morehouse Parish in northeastern Louisiana...
  East Carroll Parish in northeastern Louisiana...
  Northwestern Madison Parish in northeastern Louisiana...
  Northern Richland Parish in northeastern Louisiana...
  West Carroll Parish in northeastern Louisiana...
  Northwestern Issaquena County in west central Mississippi...

* Until 1130 AM CDT.

* At 1031 AM CDT, severe thunderstorms were located along a line
  extending from Millikin to near Oak Grove to 7 miles southeast of
  Galion to Sterlington, moving southeast at 30 mph.

  HAZARD...60 mph wind gusts and quarter size hail.

  SOURCE...Radar indicated.

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, and trees.

* Severe thunderstorms will be near...
  Millikin and Gassoway around 1035 AM CDT.
  Shelburn and Goodwill around 1040 AM CDT.
  Lake Providence around 1050 AM CDT.
  Darnell around 1100 AM CDT.
  Start and Transylvania around 1110 AM CDT.
  Rayville, Alsatia, Warden, Fitler and Monticello around 1115 AM 
  CDT.
  Holly Ridge around 1130 AM CDT.

Other locations impacted by these severe thunderstorms include
Mayersville, Collinston, Mer Rouge, Oak Ridge and Epps.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3268 9195 3289 9171 3269 9141 3301 9128
      3301 9117 3283 9096 3270 9097 3255 9122
      3249 9140 3242 9191 3250 9193 3252 9190
      3261 9193 3266 9191 3266 9194
TIME...MOT...LOC 1531Z 317DEG 24KT 3297 9121 3283 9145 3276 9170 3271
9204

HAIL...1.00IN
WIND...60MPH
 
$$

TW
2 follow-up statements
939 
WWUS54 KJAN 221604
SVSJAN

Severe Weather Statement
National Weather Service Jackson MS
1104 AM CDT FRI JUN 22 2018

LAC035-065-067-083-123-MSC055-221630-
/O.CON.KJAN.SV.W.0244.000000T0000Z-180622T1630Z/
Morehouse LA-East Carroll LA-Madison LA-Richland LA-West Carroll LA-
Issaquena MS-
1104 AM CDT FRI JUN 22 2018

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1130 AM CDT
FOR SOUTH CENTRAL MOREHOUSE...EAST CARROLL...NORTHWESTERN MADISON...
NORTHEASTERN RICHLAND...SOUTHWESTERN WEST CARROLL PARISHES IN
NORTHEASTERN LOUISIANA AND NORTHWESTERN ISSAQUENA COUNTIES...

At 1104 AM CDT, severe thunderstorms were located along a line
extending from near Fitler to near Transylvania to near Warden to
near Start, moving southeast at 30 mph.

HAZARD...60 mph wind gusts and penny size hail.

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs, siding, and trees.

These severe storms will be near...
  Transylvania around 1110 AM CDT.
  Fitler and Monticello around 1115 AM CDT.
  Alsatia around 1120 AM CDT.
  Holly Ridge around 1130 AM CDT.

Other locations impacted by these severe thunderstorms include
Mayersville, Oak Ridge and Epps.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3279 9156 3269 9141 3296 9112 3283 9096
      3270 9097 3255 9122 3249 9140 3244 9179
      3260 9184 3269 9181
TIME...MOT...LOC 1604Z 317DEG 24KT 3281 9103 3267 9127 3260 9152 3255
9186

HAIL...0.75IN
WIND...60MPH
 
$$

TW
103 
WWUS54 KJAN 221617
SVSJAN

Severe Weather Statement
National Weather Service Jackson MS
1117 AM CDT FRI JUN 22 2018

LAC067-221627-
/O.CAN.KJAN.SV.W.0244.000000T0000Z-180622T1630Z/
Morehouse LA-
1117 AM CDT FRI JUN 22 2018

...THE SEVERE THUNDERSTORM WARNING FOR SOUTH CENTRAL MOREHOUSE PARISH
IS CANCELLED...

The storms which prompted the warning have moved out of the warned 
area. Therefore, the warning has been cancelled.

A Severe Thunderstorm Watch remains in effect until 700 PM CDT for
northeastern Louisiana...and west central Mississippi.

LAT...LON 3262 9168 3261 9167 3266 9163 3269 9153
      3270 9142 3269 9141 3280 9116 3290 9105
      3283 9096 3270 9097 3255 9122 3249 9140
      3247 9166 3260 9170
TIME...MOT...LOC 1617Z 317DEG 24KT 3276 9097 3262 9121 3255 9146 3250
9180

$$

LAC035-065-083-123-MSC055-221630-
/O.CON.KJAN.SV.W.0244.000000T0000Z-180622T1630Z/
East Carroll LA-Madison LA-Richland LA-West Carroll LA-Issaquena MS-
1117 AM CDT FRI JUN 22 2018

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1130 AM CDT
FOR SOUTHERN EAST CARROLL...NORTHWESTERN MADISON...NORTHEASTERN
RICHLAND...SOUTHWESTERN WEST CARROLL PARISHES IN NORTHEASTERN
LOUISIANA AND NORTHWESTERN ISSAQUENA COUNTIES...

At 1117 AM CDT, severe thunderstorms were located along a line
extending from near Onward to Alsatia to near Warden to near
Rayville, moving southeast at 30 mph.

HAZARD...60 mph wind gusts and penny size hail.

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs, siding, and trees.

These severe storms will be near...
  Transylvania, Alsatia and Fitler around 1120 AM CDT.

Other locations impacted by these severe thunderstorms include Epps
and Mayersville.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3262 9168 3261 9167 3266 9163 3269 9153
      3270 9142 3269 9141 3280 9116 3290 9105
      3283 9096 3270 9097 3255 9122 3249 9140
      3247 9166 3260 9170
TIME...MOT...LOC 1617Z 317DEG 24KT 3276 9097 3262 9121 3255 9146 3250
9180

HAIL...0.75IN
WIND...60MPH
 
$$

TW

What forecasters said that day

The local office's own words before this severe thunderstorm 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 severe thunderstorm warning went out at Jun 22, 5:59 AM CDT, 4 hours 32 minutes earlier.

Area forecast discussion, Jun 22, 5:59 AM CDT, 4 hours 32 minutes before
Area Forecast Discussion...UPDATED
National Weather Service Jackson MS
559 AM CDT Fri Jun 22 2018

...SEVERE THUNDERSTORMS POSSIBLE TODAY ACROSS PORTIONS OF THE
REGION...

.UPDATE...
Updated for 12Z aviation discussion

&&

.AVIATION...
12Z TAF discussion:
With the exception of GTR where TSRA/SHRA activity continued,
IFR/MVFR cigs have developed areawide. These cigs will lift by 15Z
and VFR conds wl prevail away from TSRA activity. Numerous TSRA
coverage is expected today with the exception of the se where late
afternoon isold TSRA wl be psbl. TSRA activity wl cont tonight
along HWY 82 where a stalled front is expected. Elsewhere, TSRA
activity wl dissipate by 04Z Sat. /22/

&&

.DISCUSSION...
Today and Tonight: Early morning water vapor imagery/RAP analysis
showed the circulation around a nearly stacked low over southern
Illinois with a shortwave nearing the Ozarks that will continue to
swing around the base of the low today. Surface analysis had the
associated cold front dropping over the Missouri bootheel and
extending southwest across southwest Arkansas into northeast Texas.
The shortwave is expected to help initiate convection along the cold
front later this morning. Models agree that this activity will
spread east southeast into our northwest most zones shortly
thereafter eventually spreading to the Highway 84 corridor by late
afternoon. Our tropical airmass with greater than two inch PWATs got
dry slotted yesterday but a moist airmass remains over the region as
GOES total PW imagery suggests PWATs continue around 1.6 inches over
our CWA early this morning. Surface observations also had mid 70F
dew points over our CWA. Although the storms will get an early
start in our north they should encounter an environment with MLCAPEs
in excess of 2000j/k. Considering the flow around the low to our
north contributing to deep layer bulk shear around 40 kts, the
environment will support the potential for severe storms with
damaging wind and hail being the main threats. Locally heavy
rainfall will also be possible and a brief tornado or two cannot be
ruled out.

The nearly stack low will move northeast toward the Ohio River
Valley tonight and weaken stranding the cold front to stall across
our northern zones this evening before drifting back north toward
morning. Most of the convection over our CWA will dissipate this
evening with the loss of daytime heating but, convection will linger
in proximity of the frontal boundary through the night. There are at
least a couple models that suggest a complex of storms may develop
tonight and track along the stalled front, possibly dropping into
our CWA prior to sunrise. Wl maintain a MARGINAL area in our HWO
across the Highway 82 corridor to account for this threat.
Otherwise, temperatures will be held close to normal today due to
the convection and cloud cover but Saturday morning lows will be
warmer than normal again. /22/

This weekend: As a mid/upper trough pulls northeastward away from
the area, a surface front stalled across east AR into north MS will
retreat northward, with a surface ridge building in along the Gulf
Coast. This will begin to confine convection north of the region as
capping increases from the south. However, there remains the
potential for a complex of storms to brush the northern fringe of
the CWA into early Saturday as suggested by the 00Z Euro and some
CAM solutions, so chance POPs were maintained into that time period.
Otherwise, with fewer clouds/showers, temps will tick up again this
weekend, and given the remaining moist airmass, heat stress will
become more of a concern. We'll continue mention in the HWO for heat
indices approaching 105 over most of the CWA on Saturday, also now
including Sunday as well. It is possible a heat advisory may be
needed eventually for some portion of the area.

Monday through Thursday: The surface ridge will begin to retreat
eastward, resulting in an increase in diurnal convection as our
region moves to the periphery of said ridge. Outside of the rain,
generally warmer conditions are expected as mid/upper heights
increase over the area. With a rather humid airmass remaining in
place, heat stress could continue to be a concern. However, the
greater potential for clouds/rain will create uncertainty over daily
peak apparent temps. Eventually, we may need to highlight a heat
stress risk on one of more of these days in the HWO/graphics/NPW.
/DL/

&&

.PRELIMINARY POINT TEMPS/POPS...
Jackson       90  73  93  74 /  44  12   7   3
Meridian      91  73  94  74 /  50  15  10   3
Vicksburg     90  74  93  74 /  47  10   7   3
Hattiesburg   93  74  94  74 /  17   5   7   4
Natchez       91  74  92  74 /  17   5   8   3
Greenville    88  73  91  75 /  66  25  30   8
Greenwood     86  73  91  74 /  70  25  38  11

&&

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

&&

DL/22
Hazardous weather outlook, Jun 22, 10:23 AM CDT, 8 minutes before
Hazardous Weather Outlook...UPDATED
National Weather Service Jackson MS
1023 AM CDT Fri Jun 22 2018

ARZ074-231530-
Ashley-
1023 AM CDT Fri Jun 22 2018

This hazardous weather outlook is for portions of southeast
Arkansas.

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

SEVERE THUNDERSTORMS
THREAT...Slight
TIMING...Mainly remainder of today

FLOODING
THREAT...Elevated
TIMING...remainder of today

Severe thunderstorms capable of producing damaging wind gusts and
hail are possible today. A brief tornado cannot be ruled out as
well.

Isolated severe thunderstorms will also be possible late tonight,
with again the main threats being hail and damaging winds gusts.

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

Flash flooding is likely as rainfall totals today range from 2 to
5 inches with locally higher amounts.

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

.DAYS TWO THROUGH SEVEN...Saturday through Thursday

Maximum heat index values approaching 105 degrees are possible on
Saturday into early next week. This may result in elevated heat
stress levels.

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

.SPOTTER CALL TO ACTION STATEMENT...
The activation of storm spotters, HAM radio operators, and
emergency management personnel in support of severe weather
operations may be needed for portions of the region rest of
today through tonight.

ARZ075-MSZ018-019-025>039-231530-
Chicot-Bolivar-Sunflower-Leflore-Grenada-Carroll-Montgomery-
Webster-Clay-Lowndes-Choctaw-Oktibbeha-Washington-Humphreys-
Holmes-Attala-Winston-Noxubee-
1023 AM CDT Fri Jun 22 2018

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

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

SEVERE THUNDERSTORMS
THREAT...Slight
TIMING...Mainly remainder of today

FLOODING
THREAT...Limited
TIMING...remainder of today

Severe thunderstorms capable of producing damaging wind gusts and
hail are possible today. A brief tornado cannot be ruled out as
well.

Isolated severe thunderstorms will also be possible late tonight,
with again the main threats being hail and damaging winds gusts.

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

Flash flooding is possible today as rainfall totals range from 1
to 3 inches with locally higher amounts.

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

.DAYS TWO THROUGH SEVEN...Saturday through Thursday

Maximum heat index values approaching 105 degrees are possible on
Saturday into early next week. This may result in elevated heat
stress levels.

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

.SPOTTER CALL TO ACTION STATEMENT...
The activation of storm spotters, HAM radio operators, and
emergency management personnel in support of severe weather
operations may be needed for portions of the region rest of
today through tonight.

LAZ007>009-015-016-023-025-MSZ040-047-231530-
Morehouse-West Carroll-East Carroll-Richland-Madison LA-
Franklin LA-Tensas-Issaquena-Warren-
1023 AM CDT Fri Jun 22 2018

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

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

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

FLOODING
THREAT...Elevated
TIMING...remainder of today

Severe thunderstorms capable of producing damaging wind gusts and
hail are possible today. A brief tornado cannot be ruled out as
well.

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

Flash flooding is possible today as rainfall totals range from 1
to 3 inches with locally higher amounts.

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

.DAYS TWO THROUGH SEVEN...Saturday through Thursday

Maximum heat index values approaching 105 degrees are possible on
Saturday into early next week. This may result in elevated heat
stress levels.

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

.SPOTTER CALL TO ACTION STATEMENT...
The activation of storm spotters, HAM radio operators, and
emergency management personnel in support of severe weather
operations may be needed for portions of the region the rest
of today.

MSZ041>046-048>053-231530-
Sharkey-Yazoo-Madison MS-Leake-Neshoba-Kemper-Hinds-Rankin-Scott-
Newton-Lauderdale-Claiborne-
1023 AM CDT Fri Jun 22 2018

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

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

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

FLOODING
THREAT...Limited
TIMING...remainder of today

Severe thunderstorms capable of producing damaging wind gusts and
hail are possible today. A brief tornado cannot be ruled out as
well.

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

Flash flooding is possible today as rainfall totals range from 1
to 3 inches with locally higher amounts.

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

.DAYS TWO THROUGH SEVEN...Saturday through Thursday

Maximum heat index values approaching 105 degrees are possible on
Saturday into early next week. This may result in elevated heat
stress levels.

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

.SPOTTER CALL TO ACTION STATEMENT...
The activation of storm spotters, HAM radio operators, and
emergency management personnel in support of severe weather
operations may be needed for portions of the region the rest
of today.

LAZ026-MSZ054>066-072-231530-
Concordia-Copiah-Simpson-Smith-Jasper-Clarke-Jefferson-Adams-
Franklin MS-Lincoln-Lawrence-Jefferson Davis-Covington-Jones-
Marion-
1023 AM CDT Fri Jun 22 2018

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

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

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

Isolated severe thunderstorms capable of producing damaging wind
gusts and hail are possible today. A brief tornado cannot be ruled
out as well.

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

.DAYS TWO THROUGH SEVEN...Saturday through Thursday

Maximum heat index values approaching 105 degrees are possible on
Saturday into early next week. This may result in elevated heat
stress levels.

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

.SPOTTER CALL TO ACTION STATEMENT...
The activation of storm spotters, HAM radio operators, and
emergency management personnel in support of severe weather
operations may be needed for portions of the region the rest
of today.

MSZ073-074-231530-
Lamar-Forrest-
1023 AM CDT Fri Jun 22 2018

This hazardous weather outlook is for portions of southeast
Mississippi.

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

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday

Maximum heat index values approaching 105 degrees are possible on
Saturday into early next week. This may result in elevated heat
stress levels.

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

.SPOTTER CALL TO ACTION STATEMENT...
The activation of storm spotters, HAM radio operators, and
emergency management personnel in support of severe weather
operations is not expected through next Thursday.

LAZ024-231530-
Catahoula-
1023 AM CDT Fri Jun 22 2018

This hazardous weather outlook is for portions of northeast
Louisiana.

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

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

FLOODING
THREAT...Limited
TIMING...remainder of today

Isolated severe thunderstorms capable of producing damaging wind
gusts and hail are possible today. A brief tornado cannot be ruled
out as well.

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

Flash flooding is possible today as rainfall totals range from 1
to 3 inches with locally higher amounts.

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

.DAYS TWO THROUGH SEVEN...Saturday through Thursday

Maximum heat index values approaching 105 degrees are possible on
Saturday into early next week. This may result in elevated heat
stress levels.

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

.SPOTTER CALL TO ACTION STATEMENT...
The activation of storm spotters, HAM radio operators, and
emergency management personnel in support of severe weather
operations may be needed for portions of the region the rest
of today.

50

&&

...HAZARD LEGEND...

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

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

...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

Tropical page...
   https://www.weather.gov/jan/srh/tropical?office=jan
National Hurricane Center Home Page...
   https://www.nhc.noaa.gov/
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)...
   www.spc.noaa.gov/
Meso Analysis...
   www.spc.noaa.gov/exper/mesoanalysis/
Day 1 through 3 Outlooks...
   www.spc.noaa.gov/products/outlook/
Storm Reports...
   www.spc.noaa.gov/climo/online/
...ADDITIONAL URLS FOR FLOODING ISSUES...

Current Watches and Warnings...
   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...
   www.wpc.ncep.noaa.gov/nationalfloodoutlook/index.html
Day 1 through 3 Excessive Rainfall...
   www.wpc.ncep.noaa.gov/qpf/excess_rain.shtml
Excessive Rainfall Discussion...
   www.wpc.ncep.noaa.gov/discussions/qpferd.html
Day 1 through 7 QPF...
   www.wpc.ncep.noaa.gov/qpf/qpf2.shtml
QPF Discussion...
   www.wpc.ncep.noaa.gov/discussions/qpfpfd.html

In the hours before

Special weather statement, Jun 22, 8:49 AM CDT, 1 hour 42 minutes before
Special Weather Statement
National Weather Service Jackson MS
849 AM CDT FRI JUN 22 2018

ARZ074-221430-
Ashley AR-
849 AM CDT FRI JUN 22 2018

...A STRONG THUNDERSTORM WILL AFFECT CENTRAL ASHLEY COUNTY UNTIL 930
AM CDT...

At 849 AM CDT, Meteorologists were tracking a strong thunderstorm 7
miles southeast of Ingalls, or 12 miles north of West Crossett,
moving southeast 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...
  North Crossett, Fountain Hill and Old Milo around 905 AM CDT.
  Hamburg around 915 AM CDT.
  Berlin around 925 AM CDT.

Other locations impacted by this storm include Blanchton.

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 3321 9208 3324 9209 3325 9205 3327 9204
      3328 9204 3328 9200 3330 9200 3331 9198
      3335 9199 3335 9197 3338 9196 3340 9199
      3340 9186 3333 9153 3301 9173 3301 9187
      3321 9211
TIME...MOT...LOC 1349Z 299DEG 35KT 3332 9205

TW
Local storm report, Jun 22, 9:02 AM CDT, 1 hour 29 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSON MS
902 AM CDT FRI JUN 22 2018

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

0901 AM     FLASH FLOOD      1 NNE CROSSETT          33.14N 91.96W
06/22/2018                   ASHLEY             AR   PUBLIC

            WATER COVERING 1ST AVE IN CROSSETT.

&&

TW
Special weather statement, Jun 22, 9:08 AM CDT, 1 hour 23 minutes before
Special Weather Statement
National Weather Service Jackson MS
908 AM CDT FRI JUN 22 2018

MSZ026-221445-
Grenada MS-
908 AM CDT FRI JUN 22 2018

...A STRONG THUNDERSTORM WILL AFFECT GRENADA COUNTY UNTIL 945 AM
CDT...

At 908 AM CDT, Meteorologists were tracking a strong thunderstorm
near Paynes, or near Charleston, moving east at 55 mph.

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

This storm will remain over mainly rural areas of Grenada County.

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 3387 8977 3387 8951 3368 8951 3368 8965
      3369 9014 3381 9013 3381 8998 3382 8998
      3382 8993 3390 8992 3390 8977
TIME...MOT...LOC 1408Z 276DEG 47KT 3395 9002

TW
Local storm report, Jun 22, 9:12 AM CDT, 1 hour 19 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSON MS
912 AM CDT FRI JUN 22 2018

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

0912 AM     FLASH FLOOD      1 SSE CROSSETT          33.11N 91.96W
06/22/2018                   ASHLEY             AR   PUBLIC

            ADDITIONAL STREETS COVERED IN WATER AROUND
            CROSSETT INCLUDING DOGWOOD DR. PICTURES
            RELAYED VIA SOCIAL MEDIA.

&&

TW
Special weather statement, Jun 22, 9:30 AM CDT, 1 hour 1 minute before
Special Weather Statement
National Weather Service Jackson MS
930 AM CDT FRI JUN 22 2018

ARZ074-221515-
Ashley AR-
930 AM CDT FRI JUN 22 2018

...A STRONG THUNDERSTORM WILL AFFECT SOUTHEASTERN ASHLEY COUNTY UNTIL
1015 AM CDT...

At 930 AM CDT, Meteorologists were tracking a strong thunderstorm
over Hamburg, moving east at 30 mph.

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

This strong thunderstorm will be near...
  Berlin around 935 AM CDT.
  Portland around 955 AM CDT.
  Wilmot and Parkdale around 1000 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 3330 9180 3324 9146 3301 9146 3301 9193
TIME...MOT...LOC 1430Z 291DEG 25KT 3320 9176

TW
Special weather statement, Jun 22, 9:54 AM CDT, 37 minutes before
Special Weather Statement
National Weather Service Jackson MS
954 AM CDT FRI JUN 22 2018

MSZ018-221530-
Bolivar MS-
954 AM CDT FRI JUN 22 2018

...A STRONG THUNDERSTORM WILL AFFECT NORTHEASTERN BOLIVAR COUNTY
UNTIL 1030 AM CDT...

At 953 AM CDT, Meteorologists were tracking a strong thunderstorm
over Gunnison, or 9 miles northeast of Rosedale, moving east 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...
  Deeson around 1000 AM CDT.
  Shelby around 1010 AM CDT.

Other locations impacted by this storm include Winstonville, Duncan
and Alligator.

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 3390 9066 3388 9106 3393 9101 3395 9106
      3398 9106 3400 9102 3397 9100 3396 9097
      3398 9096 3402 9099 3402 9090 3403 9089
      3406 9089 3408 9087 3412 9066
TIME...MOT...LOC 1453Z 262DEG 37KT 3397 9096

TW

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 22, 12:15 AM CDTSevere Thunderstorm WarningJANClay45 min
Jun 22, 3:15 AM CDTSpecial Weather StatementJANOktibbeha60 min
Jun 22, 7:49 AM CDTSevere Thunderstorm WarningJANBolivar, Sunflower41 min
Jun 22, 9:08 AM CDTSpecial Weather StatementJANGrenada37 min
Jun 22, 9:24 AM CDTSevere Thunderstorm WarningJANGrenada31 min
Jun 22, 9:54 AM CDTSpecial Weather StatementJANBolivar36 min
Jun 22, 11:07 AM CDTSevere Thunderstorm WarningJANIssaquena, Sharkey, Warren, Yazoo53 min
Jun 22, 11:22 AM CDTSevere Thunderstorm WarningJANWarren39 min
Jun 22, 11:54 AM CDTSpecial Weather StatementJANHinds51 min
Jun 22, 1:02 PM CDTSevere Thunderstorm WarningJANIssaquena43 min
Jun 22, 1:10 PM CDTSevere Thunderstorm WarningJANIssaquena, Sharkey50 min
Jun 22, 2:13 PM CDTSevere Thunderstorm WarningJANWashington47 min
Jun 22, 3:23 PM CDTSpecial Weather StatementJANHinds37 min
Jun 22, 3:26 PM CDTSpecial Weather StatementJANHumphreys34 min
Jun 22, 4:04 PM CDTSevere Thunderstorm WarningJANIssaquena, Sharkey56 min
Jun 22, 4:55 PM CDTSevere Thunderstorm WarningJANIssaquena, Sharkey, Warren50 min
Jun 22, 5:10 PM CDTSpecial Weather StatementJANHinds, Madison, Rankin65 min
Jun 22, 5:16 PM CDTSevere Thunderstorm WarningJANHinds, Madison, Rankin, Scott, Smith34 min
Jun 22, 5:24 PM CDTSevere Thunderstorm WarningJANHinds, Madison, Warren, Yazoo66 min
Jun 22, 5:42 PM CDTSevere Thunderstorm WarningJANWarren30 min
Jun 22, 6:00 PM CDTSpecial Weather StatementJANWashington30 min
Jun 22, 6:16 PM CDTSpecial Weather StatementJANSmith29 min
Jun 22, 6:17 PM CDTSevere Thunderstorm WarningJANHinds, Rankin39 min
Jun 22, 6:32 PM CDTSevere Thunderstorm WarningJANClarke, Jasper, Lauderdale, Newton58 min
Jun 22, 7:52 AM CDTSevere Thunderstorm WarningJANMorehouse53 min
Jun 22, 8:35 AM CDTSpecial Weather StatementJANWest Carroll55 min
Jun 22, 9:37 AM CDTSevere Thunderstorm WarningJANMorehouse68 min
Jun 22, 9:51 AM CDTSevere Thunderstorm WarningJANMorehouse, West Carroll54 min
Jun 22, 11:56 AM CDTSpecial Weather StatementJANWest Carroll49 min
Jun 22, 12:44 PM CDTSpecial Weather StatementJANEast Carroll, West Carroll31 min
Jun 22, 12:46 PM CDTSpecial Weather StatementJANWest Carroll29 min
Jun 22, 2:29 PM CDTSevere Thunderstorm WarningJANFranklin, Morehouse, Richland, West Carroll46 min
Jun 22, 3:03 PM CDTTornado WarningJANFranklin, Richland42 min
Jun 22, 3:29 PM CDTTornado WarningJANFranklin, Madison46 min
Jun 22, 4:24 PM CDTSevere Thunderstorm WarningJANMorehouse, Richland, West Carroll51 min
Jun 22, 5:05 PM CDTSevere Thunderstorm WarningJANMadison40 min
Jun 22, 5:36 PM CDTSpecial Weather StatementJANMorehouse24 min
Jun 22, 6:14 PM CDTSpecial Weather StatementJANMadison31 min
Jun 22, 6:41 PM CDTSevere Thunderstorm WarningJANMorehouse32 min

Nearby

Severe Thunderstorm Warnings in Louisiana, 2018Severe Thunderstorm Warnings in Mississippi, 2018Every severe thunderstorm warning in 2018

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.