Alert archive / Mississippi / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 158, NWS Jackson, MS

April 2, 2017Bolivar County, Issaquena County, Washington County, Mississippi; Ashley County, Chicot County, Arkansas; East Carroll Parish, West Carroll Parish, Louisiana

NWS Jackson, MS issued this severe thunderstorm warning at Apr 2, 2017, 4:41 PM CDT for Bolivar County, Issaquena County, Washington County, Mississippi; Ashley County, Chicot County, Arkansas; East Carroll Parish, West Carroll Parish, Louisiana. It was in force for 64 min. 9 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
Apr 2, 2017, 4:41 PM CDT (21:41 UTC)
Expired
Apr 2, 2017, 5:45 PM CDT
In force
64 min
Issued by
NWS Jackson, MS
Area
Storm-based polygon
Hail
0.75 in
Wind
70.0 mph

Counties Ashley County, AR, Chicot County, AR, East Carroll Parish, LA, West Carroll Parish, LA, Bolivar County, MS, Issaquena County, MS, Washington County, MS

The radar

The Jackson/Brandon,MS radar (KDGX), 169 km from the middle of the area, began a volume at 21:41 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

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

What was reported inside it

TimeReportWhereRemark
Apr 2, 5:00 PM CDTTSTM WND DMGDermott, ARTREES WERE BLOWN DOWN IN DERMOTT.
Apr 2, 5:05 PM CDTTSTM WND DMGEudora, ARSEVERAL TREES WERE UPROOTED.
Apr 2, 5:10 PM CDTTSTM WND DMG3 Ssw Greenville, MSTREES DOWN ON BAYOU ROAD.
Apr 2, 5:12 PM CDTTSTM WND GST 692 Nne Metcalfe, MSAT THE GREENVILLE ASOS.
Apr 2, 5:18 PM CDTTSTM WND DMGDermott, ARA TREE FELL ON A HOUSE AND SEVEN TREES WERE BLOWN DOWN IN THE CITY.
Apr 2, 5:33 PM CDTTSTM WND DMG1 N Boyle, MSTREES AND POWER POLES DOWN IN CLEVELAND ON LAUGHLIN RD, YALE STREET, MEMORIAL DRIVE, AND MOORE AVE.
Apr 2, 5:33 PM CDTTSTM WND DMGCleveland, MSONE TREE HAD BLOWN DOWN ON A FENCE IN TOWN.
Apr 2, 5:35 PM CDTTSTM WND DMG1 Wsw Cleveland, MSROOF DAMAGE TO COUNTRY VILLAGE APARTMENTS ON YALE ST. .
Apr 2, 5:35 PM CDTTSTM WND DMG2 Wnw Shelby, MSTREES DOWN.

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 9 storm reports to this severe thunderstorm warning; the first came 19 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Apr 2, 1:34 PM CDTTornado Watch PDSSPC7 hr

The nearest sounding before it

Jackson, MS (KJAN), launched 12:00Z, 9.7 hours before the alert went out and 160 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 2017-04-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 2017-04-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 106 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1500 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
106 m²/s²
0-3 km storm-relative helicity
131 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

129 
WUUS54 KJAN 022141
SVRJAN
ARC003-017-LAC035-123-MSC011-055-151-022245-
/O.NEW.KJAN.SV.W.0158.170402T2141Z-170402T2245Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Jackson MS
441 PM CDT SUN APR 2 2017

The National Weather Service in Jackson has issued a

* Severe Thunderstorm Warning for...
  Chicot County in southeastern Arkansas...
  Southeastern Ashley County in southeastern Arkansas...
  Northeastern East Carroll Parish in northeastern Louisiana...
  Northern West Carroll Parish in northeastern Louisiana...
  Washington County in northwestern Mississippi...
  Northwestern Issaquena County in west central Mississippi...
  Bolivar County in northwestern Mississippi...

* Until 545 PM CDT

* At 441 PM CDT, severe thunderstorms were located along a line
  extending from 9 miles west of Dermott to Portland to 6 miles
  southeast of Jones, moving northeast at 80 mph.

  HAZARD...70 mph wind gusts. 

  SOURCE...Radar indicated. 

  IMPACT...Expect considerable tree damage. Damage is likely to 
           mobile homes, roofs, and outbuildings. 

* Severe thunderstorms will be near,
  Dermott around 445 PM CDT. 
  Lake Village, Mcmillan Corner and Chicot Junction around 450 PM 
  CDT. 
  Gassoway and Millikin around 455 PM CDT. 
  Eudora around 500 PM CDT. 
  Greenville, Metcalfe, Winterville, Lamont and Glen Allan around 
  505 PM CDT. 
  Leland, Rosedale, Avon and Wayside around 510 PM CDT. 
  Hollandale and Estill around 515 PM CDT. 
  Shaw, Mound Bayou and Tribbett around 520 PM CDT. 

Other locations impacted by these severe thunderstorms include
Mayersville, Arcola, Beulah, Pace, Kilbourne, Winstonville, Merigold
and Halley.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A tornado watch remains in effect for the warned area. Tornadoes can
develop quickly from severe thunderstorms. Although a tornado is not
immediately likely, if one is spotted, act quickly and move to a
place of safety inside a sturdy structure such as a basement or small
interior room.

&&

A tornado watch remains in effect until 900 PM CDT for southeastern
Arkansas...northeastern Louisiana...and northwestern and west central
Mississippi.

LAT...LON 3403 9066 3362 9066 3362 9076 3327 9076
      3310 9092 3291 9093 3282 9158 3298 9144
      3301 9144 3301 9150 3356 9145 3352 9125
      3360 9113 3370 9122 3366 9109 3368 9103
      3373 9115 3378 9113 3378 9099 3385 9107
TIME...MOT...LOC 2141Z 240DEG 69KT 3356 9160 3322 9149 3290 9157 

HAIL...<.75IN
WIND...70MPH
 
$$

EC
1 follow-up statement
571 
WWUS54 KJAN 022220
SVSJAN

Severe Weather Statement
National Weather Service Jackson MS
520 PM CDT SUN APR 2 2017

ARC003-017-LAC035-123-MSC055-022229-
/O.CAN.KJAN.SV.W.0158.000000T0000Z-170402T2245Z/
Chicot AR-Ashley AR-East Carroll LA-West Carroll LA-Issaquena MS-
520 PM CDT SUN APR 2 2017

...THE SEVERE THUNDERSTORM WARNING FOR CHICOT AND SOUTHEASTERN ASHLEY
COUNTIES...NORTHEASTERN EAST CARROLL...NORTHERN WEST CARROLL PARISHES
IN NORTHEASTERN LOUISIANA AND NORTHWESTERN ISSAQUENA COUNTIES IS
CANCELLED...

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

A tornado watch remains in effect until 900 PM CDT for southeastern
Arkansas...and northwestern Mississippi.

LAT...LON 3403 9066 3362 9066 3362 9076 3327 9076
      3310 9092 3313 9111 3315 9108 3322 9109
      3327 9104 3328 9105 3326 9109 3355 9105
      3366 9109 3369 9103 3373 9115 3378 9113
      3377 9100 3379 9099 3385 9107
TIME...MOT...LOC 2219Z 240DEG 69KT 3391 9088 3357 9077 3325 9085 

$$

MSC011-151-022245-
/O.CON.KJAN.SV.W.0158.000000T0000Z-170402T2245Z/
Washington MS-Bolivar MS-
520 PM CDT SUN APR 2 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 545 PM CDT
FOR WASHINGTON AND BOLIVAR COUNTIES...

At 519 PM CDT, severe thunderstorms were located along a line
extending from near Gunnison to near Shaw to near Estill, moving
northeast at 80 mph.

HAZARD...70 mph wind gusts. 

SOURCE...Radar indicated. 

IMPACT...Expect considerable tree damage. Damage is likely to mobile 
         homes, roofs, and outbuildings. 

These severe storms will be near...
  Cleveland, Shelby, Mound Bayou and Boyle around 525 PM CDT. 

Other locations impacted by these severe thunderstorms include
Arcola, Winstonville, Beulah, Pace and Merigold.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A tornado watch remains in effect for the warned area. Tornadoes can
develop quickly from severe thunderstorms. Although a tornado is not
immediately likely, if one is spotted act quickly and move to a place
of safety inside a sturdy structure, such as a basement or small
interior room.

&&

A tornado watch remains in effect until 900 PM CDT for southeastern
Arkansas...and northwestern Mississippi.

LAT...LON 3403 9066 3362 9066 3362 9076 3327 9076
      3310 9092 3313 9111 3315 9108 3322 9109
      3327 9104 3328 9105 3326 9109 3355 9105
      3366 9109 3369 9103 3373 9115 3378 9113
      3377 9100 3379 9099 3385 9107
TIME...MOT...LOC 2219Z 240DEG 69KT 3391 9088 3357 9077 3325 9085 

HAIL...<.75IN
WIND...70MPH
 
$$

EC

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 Apr 2, 12:38 PM CDT, 4 hours 3 minutes earlier.

Area forecast discussion, Apr 2, 12:38 PM CDT, 4 hours 3 minutes before
Area Forecast Discussion...UPDATED
National Weather Service Jackson MS
1238 PM CDT Sun Apr 2 2017

...SEVERE WEATHER EXPECTED LATE THIS AFTERNOON INTO MONDAY...

.UPDATE...
Updated for 18Z aviation discussion

&&

.AVIATION...
18Z TAF discussion:
VFR flight categories will prevail at all TAF through much of the
daytime period today as high clouds increase from southwest to
northeast across the region. Convection, associated with a strong
storm system approaching from the west, will begin to impede upon
the western half of the area (KGLH & KGWO) as early as between
19-22Z today. Some of that convection could be severe, with severe
storms possible across the remainder of the area through the
overnight hours tonight into Monday morning as the storm system
pushes east through the region. Damaging wind gusts, large hail,
and tornados will be possible with severe storms from late this
afternoon into Monday morning. Winds today will become more south
southeasterly between 10-15 knots, with higher gusts, this
afternoon into tonight. /17/

&&

.DISCUSSION...
Latest satellite imagery showed the storm system developing
strong storms in the Southern Plains. SPC has extended the
moderate risk of severe to around the ms river south of Ashley and
Chicot counties. The enhanced risk of severe weather has been
extended to toward our eastern counties, while the severe risk
remains unchanged in the east. Latest 12z morning soundings showed
strong shear and cape developing across the region from the west.
Pwats were also increase from the west with LCH at 1.8 inches. 2
inch pwats were sitting in the northwest gulf waiting to come over
the region for tonight. Latest CAM guidance shows severe storms
erupting across our western flank for late this afternoon then
spreading across the region for tonight. The primary risks will be
damaging winds, golfball sized hail, and tornadoes. A few strong
tornadoes will be possible across moderate and enhance region.
Looks like we will get alot of mesoscale processes for the
potential of some heavy rainfall tonight with training of storms
as the MCS crosses the region. So will hold on to the current
flash flood watch. Made a light downward adjustment to afternoon
highs per latest guidance. Highs will range from the middle 70s to
the lower 80s./17/

Prior discussion below:

Today and Tonight...Quite an active period of weather is currently
being forecast across the ArkLaMiss from late this afternoon into
Monday morning.  A closed and strengthening mid/upper low currently
seen on satellite over South Central Texas, will eject northeast
across the Ozarks towards the Mid-Mississippi River Valley today
into Monday.  This will cause a surface low to develop over North
Central Texas this afternoon, deepen, and likewise lift northeast
across the Ozarks towards the Mid-Mississippi River Valley through
Monday.  Very deep moisture increasing over the forecast area and
plenty of lift associated with a couple of pieces of energy that'll
begin traverse the region late this afternoon, will result in
increasing chances for storms late today, and continuing overnight
into early Monday morning as the second wave of energy traverses the
forecast area.

Good signals remain in both the global and high-res models that
severe storms will be possible across much of the CWA as early as
late this afternoon.  This potential will then continue overnight
into early Monday morning.  This severe potential is supported by
sufficient instability and steep mid-level lapse rates over the CWA,
increasing deep wind shear (50-70 knots 0-6KM by late tonight),
quite favorable jet dynamics positioned near/over the region, and
the again aforementioned strong forcing that'll pivot through the
region during this time.

Despite being within 24 hours of this severe event, the overall
evolution of how this will all progress exactly comes with some
uncertainty. However, most high-res modes currently indicate that
this will all unfold in two waves.  The first wave will prompt the
development of an MCS near the ArkLaTex this afternoon, which is
currently progged to race east northeast out of the ArkLaTex and
into the Delta region and Northwest Mississippi late this afternoon
and early evening. Some weakening of this complex is expected as it
progresses east northeast across my northern zones, but damaging
wind gusts will be the primary concern through the life of this
complex. Large hail and even a tornado will be possible as well.

As a cold pool boundary is laid out in the vicinity of, or just
north of the Interstate 20 corridor, the second more southern wave
is progged to initiate storms, some supercells, across Central
Louisiana this evening.  These could progress, and/or also develop,
into southwest portions of the ArkLaMiss region by late evening.
It'll be across portions of East Central Louisiana and portions of
Southwest Mississippi where the best conglomeration of severe
weather parameters exists across the ArkLaMiss.  It's also here that
a "Moderate Risk" for severe storms now exists for late this
afternoon into tonight. Across this "Moderate Risk" area, damaging
wind gusts of 60-75 mph, quarter to golf ball size hail, and
tornadoes will be possible.  Some tornadoes could be strong.

As the night progresses, much of this is activity is expected to
congeal into a line of broken storms, although some supercell
development will remain possible (especially south of the I-20
corridor), as it approaches the Interstate 55 corridor after
midnight. Still, damaging wind gusts ranging 60-75 mph, quarter to
golf ball sized hail, and tornadoes will remain possible as it does
so.  This will remain the case as this line shifts further east into
East Central and Southeast Louisiana around sunrise Monday morning.

Another hazard during this timeframe will be that of torrential
rainfall leading to localized flooding.  All of this lies in the
mesoscale details, as the overall synoptic pattern is quite
progressive.  With anomalous 2+ inch precipitable H2O values over
the region, and the before mentioned cold-pool boundary being laid
out west to east along to just north of the Interstate 20 corridor
later today into tonight ahead of the second wave of energy, storms
producing high rainfall rates could train across the same locales.
As a result, some rainfall amounts ranging from 2-4 inches could
fall across some locations in a short amount of time.  A Flash Flood
Watch will be issued for a portion of the CWA beginning later this
afternoon as a result. /19/

Monday through Saturday: Ongoing MCS early Monday morning will be
moving into eastern MS with still some severe potential given
ambient shear and instability, but that window will be closing
toward mid morning. Heavy rainfall will also continue through mid
morning, but flooding threat will be limited due to progressive
nature of convection by this time.

The mid level system responsible for the inclement weather will
shear out rapidly to the northeast Monday night into Tuesday morning
with zonal flow in its wake. This will quickly be replaced by
southwest flow as next system deepens on its way out of the
Intermountain West Tuesday afternoon. Though low level flow will
become southerly in advance of this system, relatively light flow
will be slow to increase adequate moisture over the CWA for much of
a precip event. Ingredients look to come together better further
east. Nevertheless, a few warm advection showers will be possible
late Tuesday night and some scattered thunderstorms mainly in the
east Wednesday.

Despite the relative weakness of the mid week system, its attendant
cold front will make an impact on temperatures by late week. A
gradual cool down will result in maximum temps in the 60s and lower
70s Thursday and Friday with chilly overnight lows in the 40s and
50s. Temps will begin to rebound over the weekend./26/

&&

.PRELIMINARY POINT TEMPS/POPS...
Jackson       81  66  80  56 /  28 100  74   7
Meridian      83  65  77  57 /  11  81 100  12
Vicksburg     78  66  80  56 /  57 100  55   7
Hattiesburg   80  67  80  58 /  19  82 100   6
Natchez       79  67  80  58 /  59 100  46   6
Greenville    77  64  76  56 /  60 100  61  10
Greenwood     81  66  77  55 /  28 100  76  10

&&

.JAN WATCHES/WARNINGS/ADVISORIES...
MS...Flash Flood Watch through Monday morning for MSZ040>044-047>050-
     053>056-059>065-072-073.

LA...Flash Flood Watch through Monday morning for LAZ007>009-015-016-
     023>026.

AR...None.

&&

17
Hazardous weather outlook, Apr 2, 8:36 AM CDT, 8 hours 5 minutes before
Hazardous Weather Outlook...UPDATED
National Weather Service Jackson MS
836 AM CDT Sun Apr 2 2017

ARZ074-075-MSZ034>036-031345-
Ashley-Chicot-Washington-Humphreys-Holmes-
836 AM CDT Sun Apr 2 2017

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

.DAY ONE...Today and Tonight

SEVERE THUNDERSTORMS
THREAT...Enhanced
TIMING...Today through Tonight

FLOODING
THREAT...Limited
TIMING...Today through Tonight

Severe thunderstorms capable of producing damaging wind gusts,
quarter to golf ball size hail and tornadoes are expected.
A strong tornado can not be ruled out. Heavy rainfall will also
create a limited potential for flash flooding.

(www.weather.gov/images/jan/graphicast/image2.png)
(www.weather.gov/images/jan/graphicast/image3.png)

.DAYS TWO THROUGH SEVEN...Monday through Saturday

The probability for widespread hazardous weather is low.

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

MSZ018-019-025>033-037>039-045-046-051-052-057-058-066-074-031345-
Bolivar-Sunflower-Leflore-Grenada-Carroll-Montgomery-Webster-Clay-
Lowndes-Choctaw-Oktibbeha-Attala-Winston-Noxubee-Neshoba-Kemper-
Newton-Lauderdale-Jasper-Clarke-Jones-Forrest-
836 AM CDT Sun Apr 2 2017

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

.DAY ONE...Today and Tonight

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

FLOODING
THREAT...Limited
TIMING...Today through Tonight

Severe thunderstorms capable of producing damaging wind gusts,
quarter to golf ball size hail and a few tornadoes are possible.
Heavy rainfall will also create a limited potential for flash
flooding.

(www.weather.gov/images/jan/graphicast/image2.png)
(www.weather.gov/images/jan/graphicast/image3.png)

.DAYS TWO THROUGH SEVEN...Monday through Saturday

The probability for widespread hazardous weather is low.

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

LAZ007>009-015-016-025-MSZ040>044-047>050-053>056-059-061>065-072-
031345-
Morehouse-West Carroll-East Carroll-Richland-Madison LA-Tensas-
Issaquena-Sharkey-Yazoo-Madison MS-Leake-Warren-Hinds-Rankin-
Scott-Claiborne-Copiah-Simpson-Smith-Jefferson-Franklin MS-
Lincoln-Lawrence-Jefferson Davis-Covington-Marion-
836 AM CDT Sun Apr 2 2017

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

.DAY ONE...Today and Tonight

SEVERE THUNDERSTORMS
THREAT...Enhanced
TIMING...Today through Tonight

FLOODING
THREAT...Elevated
TIMING...Today through Tonight

Severe thunderstorms capable of producing damaging wind gusts,
quarter to golf ball size hail and tornadoes are expected. A
strong tornado can not be ruled out. Heavy rainfall will also
create an elevated potential for flash flooding.

(www.weather.gov/images/jan/graphicast/image2.png)
(www.weather.gov/images/jan/graphicast/image3.png)

.DAYS TWO THROUGH SEVEN...Monday through Saturday

The probability for widespread hazardous weather is low.

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

LAZ023-024-026-MSZ060-031345-
Franklin LA-Catahoula-Concordia-Adams-
836 AM CDT Sun Apr 2 2017

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

.DAY ONE...Today and Tonight

SEVERE THUNDERSTORMS
THREAT...Moderate
TIMING...Today through Tonight

FLOODING
THREAT...Elevated
TIMING...Today through Tonight

Severe thunderstorms capable of producing damaging wind gusts,
quarter to golf ball size hail and tornadoes are expected.
Strong tornadoes will be possible. Heavy rainfall will also
create an elevated potential for flash flooding.

(www.weather.gov/images/jan/graphicast/image2.png)
(www.weather.gov/images/jan/graphicast/image3.png)

.DAYS TWO THROUGH SEVEN...Monday through Saturday

The probability for widespread hazardous weather is low.

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

MSZ073-031345-
Lamar-
836 AM CDT Sun Apr 2 2017

This hazardous weather outlook is for portions of southeast
Mississippi.

.DAY ONE...Today and Tonight

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

FLOODING
THREAT...Elevated
TIMING...Today through Tonight

Severe thunderstorms capable of producing damaging wind gusts,
quarter to golf ball size hail and a few tornadoes are possible.
Heavy rainfall will also create an elevated potential for flash
flooding.

(www.weather.gov/images/jan/graphicast/image2.png)
(www.weather.gov/images/jan/graphicast/image3.png)

.DAYS TWO THROUGH SEVEN...Monday through Saturday

The probability for widespread hazardous weather is low.

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

21

&&

...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...
   www.weather.gov/jan
Stay Aware, Stay Safe NWS JAN Briefing Page...
   www.weather.gov/jan/safe
Latest Weather Briefing...
   www.weather.gov/jan/weather_briefing

Find NWS JAN on Facebook...
   www.facebook.com/NWSJacksonMS
Follow NWS JAN on Twitter...
   @NWSJacksonMS
Follow NWS JAN on Youtube...
   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...
   www.weather.gov/jan/safe_HeavyRain

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

River Forecast Center...
   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

Local storm report, Apr 2, 2:46 PM CDT, 1 hour 55 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSON MS
246 PM CDT SUN APR 2 2017

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

0200 PM     HAIL             CROSSETT                33.13N 91.96W
04/02/2017  E0.75 INCH       ASHLEY             AR   BROADCAST MEDIA

            .

&&

NWS JACKSON MS
IRIS SYSTEM
Local storm report, Apr 2, 2:51 PM CDT, 1 hour 50 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSON MS
251 PM CDT SUN APR 2 2017

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

0117 PM     HAIL             3 E BROOKHAVEN          31.58N 90.39W
04/02/2017  U0.75 INCH       LINCOLN            MS   EMERGENCY MNGR

            OCCURRED AT NOLA RD AND MCCOY LN.

&&

NWS JACKSON MS
IRIS SYSTEM
Special weather statement, Apr 2, 2:58 PM CDT, 1 hour 43 minutes before
Special Weather Statement
National Weather Service Jackson MS
258 PM CDT SUN APR 2 2017

ARZ074-022030-
Ashley AR-
258 PM CDT SUN APR 2 2017

...A STRONG THUNDERSTORM WILL AFFECT WESTERN ASHLEY COUNTY UNTIL 330
PM CDT...

At 255 PM CDT, Meteorologists were tracking a strong thunderstorm
over West Crossett, moving north at 35 mph.

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

This strong thunderstorm will be near...
  North Crossett around 300 PM CDT.
  Old Milo around 310 PM CDT.
  Fountain Hill around 315 PM CDT.

Other locations impacted by this storm include Blanchton.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Move to interior space away from windows. 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 3312 9212 3316 9212 3316 9213 3321 9211
      3321 9208 3324 9209 3325 9205 3328 9204
      3328 9200 3330 9200 3331 9198 3335 9199
      3335 9197 3338 9196 3340 9199 3339 9182
      3301 9196 3304 9211 3307 9211 3310 9214
TIME...MOT...LOC 1955Z 197DEG 49KT 3311 9205

7
Special weather statement, Apr 2, 3:09 PM CDT, 1 hour 32 minutes before
Special Weather Statement
National Weather Service Jackson MS
309 PM CDT SUN APR 2 2017

LAZ007-022045-
Morehouse LA-
309 PM CDT SUN APR 2 2017

...A STRONG THUNDERSTORM WILL AFFECT NORTHWESTERN MOREHOUSE PARISH
UNTIL 345 PM CDT...

At 308 PM CDT, Meteorologists were tracking a strong thunderstorm
over Bastrop, moving northeast at 60 mph.

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

This strong thunderstorm will be near...
  Galion around 315 PM CDT.
  Beekman around 320 PM 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.

&&

A tornado watch remains in effect until 900 PM CDT for northeastern
Louisiana.

LAT...LON 3301 9195 3299 9162 3267 9184 3270 9197
      3271 9197 3271 9198 3272 9204
TIME...MOT...LOC 2008Z 203DEG 53KT 3278 9191

7
Special weather statement, Apr 2, 3:28 PM CDT, 1 hour 13 minutes before
Special Weather Statement
National Weather Service Jackson MS
328 PM CDT SUN APR 2 2017

ARZ074-LAZ007-022115-
Ashley AR-Morehouse LA-
328 PM CDT SUN APR 2 2017

...A STRONG THUNDERSTORM WILL AFFECT EASTERN ASHLEY COUNTY IN
SOUTHEASTERN ARKANSAS AND NORTH CENTRAL MOREHOUSE PARISHES UNTIL 415
PM CDT...

At 327 PM CDT, Meteorologists were tracking a strong thunderstorm
near Berlin, or 9 miles west of Wilmot, moving northeast at 65 mph.

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

This strong thunderstorm will be near...
  Wilmot around 330 PM CDT.
  Parkdale around 335 PM CDT.
  Portland, Montrose and Snyder around 345 PM CDT.

Other locations impacted by this storm include Bonita.

This storm may intensify so monitor local radio and television
stations for additional information and possible warnings from the
National Weather Service.

A tornado watch remains in effect until 900 PM CDT for northeastern
Louisiana.

LAT...LON 3339 9174 3337 9146 3302 9146 3290 9168
      3297 9188
TIME...MOT...LOC 2027Z 207DEG 58KT 3303 9173

7
Local storm report, Apr 2, 4:13 PM CDT, 28 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSON MS
413 PM CDT SUN APR 2 2017

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

0159 PM     HAIL             CROSSETT                33.13N 91.96W
04/02/2017  U1.00 INCH       ASHLEY             AR   EMERGENCY MNGR

            .

&&

NWS JACKSON MS
IRIS SYSTEM

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 2, 4:54 AM CDTFlash Flood WatchJANAdams, Claiborne, Clarke, Copiah, Covington, Forrest and 24 more28 hr
Apr 2, 12:14 PM CDTSevere Thunderstorm WarningJANFranklin, Jefferson, Lincoln46 min
Apr 2, 12:56 PM CDTSevere Thunderstorm WarningJANLincoln39 min
Apr 2, 5:13 PM CDTSevere Thunderstorm WarningJANFranklin32 min
Apr 2, 5:14 PM CDTTornado WarningJANIssaquena, Washington46 min
Apr 2, 5:24 PM CDTSevere Thunderstorm WarningJANLeflore, Sunflower66 min
Apr 2, 5:48 PM CDTTornado WarningJANIssaquena, Sharkey, Washington42 min
Apr 2, 6:02 PM CDTSevere Thunderstorm WarningJANGrenada28 min
Apr 2, 6:15 PM CDTTornado WarningJANWarren60 min
Apr 2, 6:29 PM CDTSevere Thunderstorm WarningJANHolmes, Humphreys, Issaquena, Sharkey, Washington, Yazoo61 min
Apr 2, 6:48 PM CDTTornado WarningJANHinds, Warren57 min
Apr 2, 6:53 PM CDTSevere Thunderstorm WarningJANLawrence, Lincoln67 min
Apr 2, 1:10 PM CDTSevere Thunderstorm WarningJANAshley50 min
Apr 2, 1:53 PM CDTSevere Thunderstorm WarningJANAshley52 min
Apr 2, 2:22 PM CDTSevere Thunderstorm WarningJANAshley26 min
Apr 2, 2:58 PM CDTSpecial Weather StatementJANAshley32 min
Apr 2, 3:28 PM CDTSpecial Weather StatementJANAshley47 min
Apr 2, 4:02 PM CDTSevere Thunderstorm WarningJANAshley58 min
Apr 2, 12:17 PM CDTSevere Thunderstorm WarningJANMorehouse, Richland43 min
Apr 2, 12:59 PM CDTSevere Thunderstorm WarningJANMorehouse, Richland46 min
Apr 2, 1:33 PM CDTSevere Thunderstorm WarningJANMorehouse27 min
Apr 2, 3:09 PM CDTSpecial Weather StatementJANMorehouse36 min
Apr 2, 4:12 PM CDTSevere Thunderstorm WarningJANMorehouse, Richland48 min
Apr 2, 4:18 PM CDTTornado WarningJANFranklin, Richland57 min
Apr 2, 4:28 PM CDTTornado WarningJANCatahoula, Franklin62 min
Apr 2, 4:52 PM CDTTornado WarningJANFranklin, Richland38 min
Apr 2, 5:01 PM CDTTornado WarningJANFranklin44 min
Apr 2, 5:10 PM CDTTornado WarningJANRichland28 min
Apr 2, 5:28 PM CDTSevere Thunderstorm WarningJANCatahoula, Franklin47 min
Apr 2, 5:33 PM CDTTornado WarningJANCatahoula, Franklin42 min
Apr 2, 5:34 PM CDTTornado WarningJANFranklin, Madison, Tensas41 min
Apr 2, 5:40 PM CDTSevere Thunderstorm WarningJANEast Carroll, Richland, West Carroll50 min
Apr 2, 5:46 PM CDTSevere Thunderstorm WarningJANTensas44 min
Apr 2, 5:59 PM CDTTornado WarningJANFranklin, Madison, Tensas26 min
Apr 2, 6:05 PM CDTTornado WarningJANMadison, Tensas25 min
Apr 2, 6:40 PM CDTFlash Flood WarningJANCatahoula, Franklin, Madison, Richland, Tensas4 hr

Nearby

Severe Thunderstorm Warnings in Mississippi, 2017Severe Thunderstorm Warnings in Arkansas, 2017Severe Thunderstorm Warnings in Louisiana, 2017Every severe thunderstorm warning in 2017

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.