Alert archive / Mississippi / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 142, NWS Jackson, MS

March 29, 2017Adams County, Franklin County, Jefferson County, Mississippi; Concordia Parish, Tensas Parish, Louisiana

NWS Jackson, MS issued this severe thunderstorm warning at Mar 29, 2017, 10:43 PM CDT for Adams County, Franklin County, Jefferson County, Mississippi; Concordia Parish, Tensas Parish, Louisiana. It was in force for 47 min. 4 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Mar 29, 2017, 10:43 PM CDT (03:43 UTC)
Expired
Mar 29, 2017, 11:30 PM CDT
In force
47 min
Issued by
NWS Jackson, MS
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Concordia Parish, LA, Tensas Parish, LA, Adams County, MS, Franklin County, MS, Jefferson County, MS

The radar

The Jackson/Brandon,MS radar (KDGX), 146 km from the middle of the area, began a volume at 03:46 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
Mar 29, 10:50 PM CDTTSTM WND DMG1 E Natchez, MSTREE FELL ON HOME ON LAUREL AVE.
Mar 29, 10:50 PM CDTTSTM WND DMG7 Ene Natchez, MSTREES DOWN ON KAISER LAKE RD.
Mar 29, 10:56 PM CDTTSTM WND DMG6 Nne Natchez, MSTREES DOWN ON RAND RD.
Mar 29, 11:10 PM CDTTSTM WND DMG10 Wsw Fayette, MSTREE DOWN ACROSS TATE ROAD.

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 4 storm reports to this severe thunderstorm warning; the first came 7 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
Mar 29, 7:26 PM CDTTornado WatchSPC8 hr

The nearest sounding before it

Jackson, MS (KJAN), launched 00:00Z, 3.7 hours before the alert went out and 140 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 2017-03-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 424 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 00:00Z on 2017-03-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 30 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
424 J/kg
Mixed-layer CIN
-103 J/kg
Mixed-layer LCL
1676 m above ground
0-6 km bulk shear
23 kt
0-1 km storm-relative helicity
30 m²/s²
0-3 km storm-relative helicity
57 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.4

Open this sounding in Storm Lab

The text

As transmitted.

602 
WUUS54 KJAN 300343
SVRJAN
LAC029-107-MSC001-037-063-300430-
/O.NEW.KJAN.SV.W.0142.170330T0343Z-170330T0430Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Jackson MS
1043 PM CDT WED MAR 29 2017

The National Weather Service in Jackson has issued a

* Severe Thunderstorm Warning for...
  Southwestern Tensas Parish in northeastern Louisiana...
  Northeastern Concordia Parish in northeastern Louisiana...
  Western Jefferson County in southwestern Mississippi...
  Northwestern Franklin County in southwestern Mississippi...
  Adams County in southwestern Mississippi...

* Until 1130 PM CDT

* At 1043 PM CDT, a severe thunderstorm was located over Vidalia,
  moving northeast at 45 mph.

  HAZARD...60 mph wind gusts. 

  SOURCE...Radar indicated. 

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

* This severe thunderstorm will be near,
  Stanton around 1100 PM CDT. 
  Church Hill around 1105 PM CDT. 
  Stampley around 1110 PM CDT. 

Other locations impacted by this severe thunderstorm include
Ridgecrest.

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 300 AM CDT for northeastern
Louisiana...and southwestern Mississippi.

LAT...LON 3173 9156 3173 9154 3175 9154 3206 9134
      3188 9123 3187 9125 3187 9122 3156 9104
      3138 9149 3162 9163
TIME...MOT...LOC 0343Z 234DEG 37KT 3157 9144 

HAIL...<.75IN
WIND...60MPH
 
$$

NF
2 follow-up statements
506 
WWUS54 KJAN 300351
SVSJAN

Severe Weather Statement
National Weather Service Jackson MS
1051 PM CDT WED MAR 29 2017

LAC029-107-MSC001-037-063-300430-
/O.CON.KJAN.SV.W.0142.000000T0000Z-170330T0430Z/
Tensas LA-Concordia LA-Jefferson MS-Franklin MS-Adams MS-
1051 PM CDT WED MAR 29 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1130 PM CDT
FOR SOUTHWESTERN TENSAS AND NORTHEASTERN CONCORDIA PARISHES...WESTERN
JEFFERSON...NORTHWESTERN FRANKLIN AND NORTHEASTERN ADAMS COUNTIES...

At 1051 PM CDT, a severe thunderstorm was located near Vidalia,
moving northeast at 40 mph.

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

SOURCE...Radar indicated. 

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

This severe storm will be near...
  Stanton around 1105 PM CDT. 
  Church Hill around 1110 PM CDT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain alert for a possible tornado! Tornadoes can develop quickly
from severe thunderstorms. If you spot a tornado go at once into the
basement or small central room in a sturdy structure.

&&

A tornado watch remains in effect until 300 AM CDT for northeastern
Louisiana...and southwestern Mississippi.

LAT...LON 3173 9156 3173 9154 3175 9154 3206 9134
      3188 9123 3187 9125 3187 9122 3156 9104
      3141 9141 3169 9158
TIME...MOT...LOC 0351Z 232DEG 36KT 3161 9141 

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

NF
094 
WWUS54 KJAN 300417
SVSJAN

Severe Weather Statement
National Weather Service Jackson MS
1117 PM CDT WED MAR 29 2017

LAC029-107-MSC001-037-300425-
/O.CAN.KJAN.SV.W.0142.000000T0000Z-170330T0430Z/
Tensas LA-Concordia LA-Franklin MS-Adams MS-
1117 PM CDT WED MAR 29 2017

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN TENSAS AND
NORTHEASTERN CONCORDIA PARISHES...NORTHWESTERN FRANKLIN AND
NORTHEASTERN ADAMS COUNTIES IS CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

A tornado watch remains in effect until 300 AM CDT for northeastern
Louisiana...and southwestern Mississippi.

LAT...LON 3185 9134 3186 9130 3182 9129 3181 9126
      3183 9124 3186 9127 3187 9122 3161 9107
      3161 9115 3163 9115 3163 9123 3165 9127
      3166 9127 3167 9130 3170 9129 3175 9132
      3175 9127 3176 9126 3177 9129 3176 9136
TIME...MOT...LOC 0415Z 234DEG 37KT 3176 9117 

$$

MSC063-300430-
/O.CON.KJAN.SV.W.0142.000000T0000Z-170330T0430Z/
Jefferson MS-
1117 PM CDT WED MAR 29 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1130 PM CDT
FOR WESTERN JEFFERSON COUNTY...

At 1115 PM CDT, a severe thunderstorm was located near Church Hill,
or 19 miles northeast of Natchez, moving northeast at 45 mph.

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

SOURCE...Radar indicated. 

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

This severe thunderstorm will remain over mainly rural areas of 
western Jefferson County. A tornado warning also remains in effect 
for western Jefferson County until 1145 PM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain alert for a possible tornado! Tornadoes can develop quickly
from severe thunderstorms. If you spot a tornado go at once into the
basement or small central room in a sturdy structure.

&&

A tornado watch remains in effect until 300 AM CDT for northeastern
Louisiana...and southwestern Mississippi.

LAT...LON 3185 9134 3186 9130 3182 9129 3181 9126
      3183 9124 3186 9127 3187 9122 3161 9107
      3161 9115 3163 9115 3163 9123 3165 9127
      3166 9127 3167 9130 3170 9129 3175 9132
      3175 9127 3176 9126 3177 9129 3176 9136
TIME...MOT...LOC 0415Z 234DEG 37KT 3176 9117 

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

NF

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 Mar 29, 8:37 PM CDT, 2 hours 6 minutes earlier.

Area forecast discussion, Mar 29, 8:37 PM CDT, 2 hours 6 minutes before
Area Forecast Discussion...UPDATED
National Weather Service Jackson MS
837 PM CDT Wed Mar 29 2017

...SIGNIFICANT SEVERE WEATHER POSSIBLE LATE TONIGHT INTO THURSDAY...

.UPDATE...
Updated for evening discussion.

&&

.DISCUSSION...

Evening update:

Tornado watch #101 was issued a bit ago for mainly western zones
until 3 AM CDT. Numerous thunderstorms initiating late this
afternoon near the east TX/southwest LA border have gradually
evolved into two separate areas of convection this evening; one
area progressing northeast into the Arklamiss Delta and another
area hugging more closely to the LA coast. Relatively broad
forcing helping trigger these storms could set off more in the
watch area through late evening and the combination of wind shear
and instability is enough in the watch area to be concerned about
tornadoes. 00Z JAN sounding revealed steep lapse rates, but plenty
of dry air and capping above the surface to provide an impediment
for potent storms to easily transition east past the I-55
corridor. Activity has developed eastward into the region a little
faster than anticipated and our forecast and graphics have earlier
been updated to reflect observations and thinking through the
night. /BB/

Prior discussion below:

Tonight through Thursday night: The next 24-30 hours are expected
to be quite active across the region with multiple rounds of
severe weather possible. The main culprit will be an upper trough
currently over the Southern Plains swinging eastward into the mid
MS River Valley through the day tomorrow. The associated surface
low is currently situated over south Kansas and will track ENEward
into the Ohio Valley through tomorrow, dragging a cold front
across the region tomorrow. Two rounds of severe weather are
expected with this system - one late tonight through early
tomorrow morning and another from around midday tomorrow into the
early evening.

The initial round of storms, currently over the TX/LA border, is
being kicked off by a spoke of PVA/upper height falls pivoting
around the main upper low. Ahead of these storms across northeast
Louisiana, a rather favorable environment is expected to exist
later this evening, with deep layer shear of up to 50 kt, a 40-50
kt low level jet, mid level lapse rates around 7 C/km, 0-1 km SRH
of up to 100 m2/s2, and sufficient surface based instability with
SBCAPE of 500-1000 J/kg. Ongoing convection and available high-
res guidance suggests decent potential for supercells evolving
into more of a QLCS as they advance E/NE into the Delta later
tonight. Given the favorable environment in the western portion
of our forecast area, we have relatively high confidence in
severe weather overnight, with some potential for some instances
of sig severe (2"+ hail, a strong tornado) as well. Forecast 0-3
km shear vectors suggest the greatest damaging wind potential with
any bowing segments moving in a more SW to NE direction during
this time frame. This convection should lose steam by around
daybreak as it begins to outrun the best low level forcing and as
instability reaches it's nocturnal minimum.

A bit of a lull is expected during the mid/late morning hours as
remnant storms from overnight continue slowly eastward. This,
along with any significant development of coastal convection, will
present a potential limiting factor for redevelopment of storms
later in the day tomorrow. Nevertheless, new convection is
expected to initiate around midday somewhere between the MS River
and the I-55 corridor as renewed upper forcing moves across the
region and deep layer shear increases. It is possible these storms
will not initiate until the boundary reaches the I-55 area, so the
threat for additional severe weather west of this area (and
especially back into AR/LA) is very questionable tomorrow. Farther
south, instability may be increasingly limited by convection
earlier in the day, so uncertainty increases south of the I-20
corridor. The storms that do develop with likely need some time to
percolate before reaching severe thresholds as they move
eastward, suggesting the greatest potential for severe storms in
our CWA with this second round will be around the Golden Triangle
area (with perhaps greater potential north and east of the area).
Once again, relatively steep mid level lapse rates are forecast
across much of the area, suggesting the potential for large hail.
In addition, weak to moderate instability and a respectable low
level jet portends the potential for damaging winds. The greatest
low level helicity is forecast to pull out of the area by early in
the afternoon, so the window for greater tornado potential may be
somewhat limited with the second round of storms.

To reiterate, there is considerable uncertainty surrounding the
second round of storms, and there's a decent chance that some
parts of our area may not be impacted. However, it is worthwhile
for everyone to keep checking the latest forecasts, because there
is the potential for a significant severe weather threat where
storms do develop.

Storms are expected to exit the area by mid evening, with rain
mostly out of the forecast area by midnight. Somewhat cooler air
will filter in overnight. /DL/

Friday through next Wednesday:
As Thursday's system pushes off to the east, quiet weather will
prevail as surface high pressure builds over the region on Friday
and Saturday. High temps will return into the 80s while lows
increase again into the 60s.

During the weekend timeframe, a trough over the Four Corners region
will travel eastward and into the Plains. As a surface low begins to
deepen Sunday, impulses of energy rotating around the closed low
will begin to affect our region beginning on Sunday. Surges of
moisture associated with a low level jet may bring inches of
rainfall to southern Louisiana and Mississippi Sunday into Monday.
Models are in a bit of disagreement about the total rainfall amounts
but agree that there will be plenty of moisture being pushed into
the region. PW values increase to 2+ inches. Dewpoints will be in
the upper 60s Sunday night into Monday. WPC has QPF amounts as high
as 5.5 inches bullseyed in south Mississippi in the day 4/5
timeframe. A limited risk, therefore, has been added to the HWO for
flooding and in order to keep things simple in light of the current
severe risks, just a note about flooding has been added to the
Graphicast. This will certainly need to be adjusted as time
approaches. As to severe weather, a limited risk will remain
possible with strong winds aloft and favorable instability profiles
suggesting organized severe storms.

This system will push out gradually late Monday night through
Tuesday. A closed low sweeping through the plains next Wednesday
will drag a cold front through our region. This will bring another
round of storms to part of the area. /10/

&&

.AVIATION...
00Z TAF discussion:

Main concern through tomorrow regarding aviation with be the risk
of thunderstorms, starting later tonight at GLH/GWO/HKS/JAN. Main
threat of storms will likely hold off until early to midday
tomorrow at CBM/GTR/NMM/MEI/PIB/HBG. Any storms through this
period will have the risk of being severe and producing high winds
and hail (and of course significant turbulence aloft in the
vicinity of the storms). Expect surface winds ahead of storms
tonight to generally blow from the south at 10 to 15 mph with
potential gusts up to 25 mph. These south winds will continue
tomorrow with winds disrupted in and around thunderstorms. brief IFR
to LIFR conditions will be possible within storms with mainly MVFR
ceilings on tap starting late this evening and going into at least early
tomorrow at most sites. /BB/

&&

.PRELIMINARY POINT TEMPS/POPS...
Jackson       65  78  53  79 /  71  68  34   3
Meridian      67  78  54  80 /  22  60  60   3
Vicksburg     65  76  52  81 /  80  56  14   2
Hattiesburg   67  78  55  82 /  37  61  45   2
Natchez       66  76  54  81 /  83  54  12   1
Greenville    63  73  50  76 /  80  56  12   3
Greenwood     67  75  50  76 /  74  78  21   3

&&

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

&&

10/DL/BB
Hazardous weather outlook, Mar 29, 4:20 PM CDT, 6 hours 23 minutes before
Hazardous Weather Outlook
National Weather Service Jackson MS
420 PM CDT Wed Mar 29 2017

ARZ074-075-LAZ007>009-015-016-023>026-MSZ018-019-034-035-040>042-
047-053-059-060-302130-
Ashley-Chicot-Morehouse-West Carroll-East Carroll-Richland-
Madison LA-Franklin LA-Catahoula-Tensas-Concordia-Bolivar-
Sunflower-Washington-Humphreys-Issaquena-Sharkey-Yazoo-Warren-
Claiborne-Jefferson-Adams-
420 PM CDT Wed Mar 29 2017

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

.DAY ONE...Tonight and Thursday

SEVERE THUNDERSTORMS
THREAT...Enhanced overnight, then marginal on Thursday
TIMING...Tonight through midday Thursday

Severe storms are expected to move in late tonight, especially
after 9 PM, lasting through around daybreak. Damaging wind gusts,
golfball size hail, and tornadoes will be possible with any
severe storm. A strong tornado will be possible.

(www.weather.gov/images/jan/graphicast/image1.png)

Strong to severe storms may redevelop late Thursday morning with
the severe weather threat ending during the afternoon.

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

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

Severe thunderstorms capable of damaging wind gusts, hail to the
size of quarters, and a few tornadoes will again be possible late
Sunday into Monday. Heavy rainfall which may result in flooding is
possible during this time frame as well.

(www.weather.gov/images/jan/graphicast/image4.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 and Sunday through Sunday night.

MSZ027-032-036>038-043>045-050-302130-
Carroll-Choctaw-Holmes-Attala-Winston-Madison MS-Leake-Neshoba-
Scott-
420 PM CDT Wed Mar 29 2017

This hazardous weather outlook is for portions of central
Mississippi.

.DAY ONE...Tonight and Thursday

SEVERE THUNDERSTORMS
THREAT...Slight early Thursday morning, Enhanced Thursday
afternoon
TIMING...Early Thursday morning through Thursday afternoon

Severe storms are possible after 2 AM Thursday morning. Damaging
wind gusts, quarter size hail, and a few tornadoes will be
possible.

(www.weather.gov/images/jan/graphicast/image1.png)

Severe storms will redevelop around midday Thursday, with the
severe weather threat ending by late afternoon. Damaging winds,
quarter size hail, and tornadoes are expected.

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

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

Heavy rainfall which may result in flooding is possible late
Sunday into Monday.

(www.weather.gov/images/jan/graphicast/image4.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 Sunday
night and tonight through Thursday night.

MSZ026-028>030-033-302130-
Grenada-Montgomery-Webster-Clay-Oktibbeha-
420 PM CDT Wed Mar 29 2017

This hazardous weather outlook is for the Grenada area and the
Golden Triangle.

.DAY ONE...Tonight and Thursday

SEVERE THUNDERSTORMS
THREAT...Slight early Thursday morning, Moderate Thursday
afternoon
TIMING...Early Thursday morning through early Thursday evening

Severe storms are possible after 4 AM Thursday morning, mainly for
areas west of Eupora. Damaging wind gusts, quarter size hail, and
a few tornadoes will be possible.

(www.weather.gov/images/jan/graphicast/image1.png)

Severe storms will redevelop early Thursday afternoon, with a
greater potential for severe weather. Damaging winds, hail larger
than golf ball size, and tornadoes are expected. Strong tornadoes
are possible. The severe weather threat will diminish during the
early evening hours.

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

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

Heavy rainfall which may result in flooding is possible late
Sunday into Monday.

(www.weather.gov/images/jan/graphicast/image4.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 Sunday
night and tonight through Thursday night.

MSZ031-302130-
Lowndes-
420 PM CDT Wed Mar 29 2017

This hazardous weather outlook is for Lowndes County, Mississippi.

.DAY ONE...Tonight and Thursday

SEVERE THUNDERSTORMS
THREAT...Moderate
TIMING...Thursday afternoon through early evening

Severe storms are expected to develop Thursday afternoon.
Damaging winds, hail larger than golf ball size, and tornadoes
are expected. Strong tornadoes are possible. The severe weather
threat will diminish during the early evening hours.

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

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

Heavy rainfall which may result in flooding is possible late
Sunday into Monday.

(www.weather.gov/images/jan/graphicast/image4.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 Sunday
night and Thursday through Thursday night.

MSZ039-046-051-052-302130-
Noxubee-Kemper-Newton-Lauderdale-
420 PM CDT Wed Mar 29 2017

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

.DAY ONE...Tonight and Thursday

SEVERE THUNDERSTORMS
THREAT...Enhanced
TIMING...Thursday afternoon and evening

Severe storms are expected from Thursday afternoon through
Thursday evening. Damaging winds, quarter size hail, and
tornadoes are expected.

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

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

Heavy rainfall which may result in flooding is possible late
Sunday into Monday.

(www.weather.gov/images/jan/graphicast/image4.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 Sunday
night and Thursday through Thursday night.

MSZ048-054-061-062-302130-
Hinds-Copiah-Franklin MS-Lincoln-
420 PM CDT Wed Mar 29 2017

This hazardous weather outlook is for portions of central
Mississippi.

.DAY ONE...Tonight and Thursday

SEVERE THUNDERSTORMS
THREAT...Slight
TIMING...Early Thursday morning and again Thursday afternoon

Severe storms are possible after 2 AM Thursday morning. Damaging
wind gusts, quarter size hail, and a few tornadoes will be
possible.

(www.weather.gov/images/jan/graphicast/image1.png)

Severe storms will redevelop around midday Thursday, with the
severe weather threat ending by late afternoon. Damaging winds,
quarter size hail, and tornadoes are possible.

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

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

Heavy rainfall which may result in flooding is possible late
Sunday into Monday.

(www.weather.gov/images/jan/graphicast/image4.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 Sunday
night and tonight through Thursday.

MSZ049-055-056-063>065-072-302130-
Rankin-Simpson-Smith-Lawrence-Jefferson Davis-Covington-Marion-
420 PM CDT Wed Mar 29 2017

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

.DAY ONE...Tonight and Thursday

SEVERE THUNDERSTORMS
THREAT...Slight
TIMING...Mainly Thursday afternoon and evening

Severe storms are possible after daybreak Thursday morning,
mainly for areas west of Columbia to Collins line. Damaging wind
gusts will be the main threat with these storms.

(www.weather.gov/images/jan/graphicast/image1.png)

Severe storms are possible Thursday afternoon and evening.
Damaging winds, quarter size hail, and tornadoes are possible.

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

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

Heavy rainfall which may result in flooding is possible late
Sunday into Monday.

(www.weather.gov/images/jan/graphicast/image4.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 Sunday
night and tonight through Thursday.

DL

&&

...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.

...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/

In the hours before

Special weather statement, Mar 29, 7:55 PM CDT, 2 hours 48 minutes before
Special Weather Statement
National Weather Service Jackson MS
755 PM CDT WED MAR 29 2017

LAZ015-023-300145-
Richland LA-Franklin LA-
755 PM CDT WED MAR 29 2017

...A STRONG THUNDERSTORM WILL AFFECT RICHLAND AND NORTHWESTERN
FRANKLIN PARISHES UNTIL 845 PM CDT...

At 754 PM CDT, Meteorologists were tracking a strong thunderstorm 7
miles south of Buckner, or 9 miles northeast of Columbia, moving
northeast at 45 mph.

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

This strong thunderstorm will be near...
  Buckner around 800 PM CDT.
  Alto around 805 PM CDT.
  Mangham and Archibald around 810 PM CDT.
  Rayville around 815 PM CDT.
  Holly Ridge around 820 PM CDT.
  Warden around 830 PM CDT.

Other locations impacted by this storm include Baskin.

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.

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

&&

A tornado watch remains in effect until 300 AM CDT for northeastern
Louisiana.

LAT...LON 3262 9168 3262 9166 3267 9163 3267 9160
      3258 9159 3258 9145 3256 9143 3253 9147
      3249 9149 3245 9148 3214 9189 3217 9190
      3218 9194 3217 9198 3220 9198 3219 9201
      3221 9199 3225 9199 3228 9200 3228 9203
TIME...MOT...LOC 0054Z 224DEG 54KT 3220 9197

byb
Local storm report, Mar 29, 9:29 PM CDT, 1 hour 14 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSON MS
929 PM CDT WED MAR 29 2017

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

0922 PM     TSTM WND DMG     LAKE PROVIDENCE         32.80N 91.18W
03/29/2017                   EAST CARROLL       LA   LAW ENFORCEMENT

            POWER LINE DOWN AT INTERSECTION OF 2ND AND
            MILLIKIN STREET. .

&&

NWS JACKSON MS
IRIS SYSTEM
Local storm report, Mar 29, 9:36 PM CDT, 1 hour 7 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSON MS
936 PM CDT WED MAR 29 2017

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

0815 PM     TSTM WND DMG     4 WNW RAYVILLE          32.49N 91.82W
03/29/2017                   RICHLAND           LA   LAW ENFORCEMENT

            2 TREES DOWN ON HWY 133 .

&&

NWS JACKSON MS
IRIS SYSTEM
Special weather statement, Mar 29, 10:04 PM CDT, 39 minutes before
Special Weather Statement
National Weather Service Jackson MS
1004 PM CDT WED MAR 29 2017

MSZ018-019-300345-
Sunflower MS-Bolivar MS-
1004 PM CDT WED MAR 29 2017

...A STRONG THUNDERSTORM WILL AFFECT NORTHWESTERN SUNFLOWER AND
BOLIVAR COUNTIES UNTIL 1045 PM CDT...

At 1003 PM CDT, Meteorologists were tracking a strong thunderstorm
near Benoit, or 11 miles west of Shaw, moving northeast at 60 mph.

Wind gusts up to 50 mph will be possible with this storm.

This strong thunderstorm will be near...
  Renova around 1020 PM CDT.
  Mound Bayou around 1025 PM CDT.
  Shelby and Deeson around 1030 PM CDT.

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

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.

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

&&

A tornado watch remains in effect until 300 AM CDT for southeastern
Arkansas...and northwestern Mississippi.

LAT...LON 3412 9067 3399 9066 3399 9048 3352 9076
      3353 9122 3360 9113 3370 9121 3368 9103
      3377 9115 3378 9099 3385 9107 3393 9101
      3397 9109 3396 9097 3402 9099 3409 9087
      3411 9094 3412 9095
TIME...MOT...LOC 0303Z 204DEG 53KT 3360 9098

NF
Local storm report, Mar 29, 10:38 PM CDT, 5 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSON MS
1038 PM CDT WED MAR 29 2017

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

0944 PM     TSTM WND DMG     1 ESE GREENVILLE        33.38N 91.03W
03/29/2017                   WASHINGTON         MS   EMERGENCY MNGR

            TREE ON A HOME ON PEAR LANE.

&&

NWS JACKSON MS
IRIS SYSTEM

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 29, 9:24 PM CDTSevere Thunderstorm WarningJANIssaquena, Sharkey, Washington45 min
Mar 29, 10:04 PM CDTSpecial Weather StatementJANBolivar41 min
Mar 29, 11:04 PM CDTTornado WarningJANAdams, Jefferson41 min
Mar 29, 11:44 PM CDTSpecial Weather StatementJANFranklin31 min
Mar 30, 12:01 AM CDTSevere Thunderstorm WarningJANFranklin, Jefferson, Lincoln44 min
Mar 30, 12:06 AM CDTSpecial Weather StatementJANCopiah24 min
Mar 30, 12:12 AM CDTSevere Thunderstorm WarningJANClaiborne, Copiah, Hinds63 min
Mar 30, 12:42 AM CDTSevere Thunderstorm WarningJANCopiah, Lincoln52 min
Mar 30, 1:11 AM CDTSevere Thunderstorm WarningJANHinds, Madison, Rankin, Yazoo36 min
Mar 30, 1:54 AM CDTSpecial Weather StatementJANMontgomery, Webster36 min
Mar 30, 2:52 AM CDTSpecial Weather StatementJANHolmes, Humphreys, Leflore, Yazoo53 min
Mar 30, 4:16 AM CDTSpecial Weather StatementJANAttala, Choctaw, Montgomery, Webster44 min
Mar 30, 5:14 AM CDTSpecial Weather StatementJANLamar46 min
Mar 30, 5:39 AM CDTSevere Thunderstorm WarningJANForrest, Jones, Lamar55 min
Mar 30, 7:08 AM CDTSpecial Weather StatementJANClay, Kemper, Lowndes, Neshoba, Noxubee, Oktibbeha and 1 more52 min
Mar 29, 7:55 PM CDTSpecial Weather StatementJANRichland50 min
Mar 29, 8:36 PM CDTSevere Thunderstorm WarningJANEast Carroll, Richland, West Carroll54 min

Nearby

Severe Thunderstorm Warnings in Mississippi, 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.