Alert archive / Mississippi / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 85, NWS Jackson, MS

March 7, 2017Clay County, Lowndes County, Oktibbeha County, Mississippi

NWS Jackson, MS issued this severe thunderstorm warning at Mar 7, 2017, 12:32 PM CST for Clay County, Lowndes County, Oktibbeha County, Mississippi. It was in force for 43 min. 1 report 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 7, 2017, 12:32 PM CST (18:32 UTC)
Expired: Mar 7, 2017, 1:15 PM CST
In force: 43 min
Issued by: NWS Jackson, MS
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Clay County, MS, Lowndes County, MS, Oktibbeha County, MS

What was reported inside it

Time	Report	Where	Remark
Mar 7, 12:32 PM CST	TSTM WND DMG	N Oktoc, MS	A TREE WAS BLOWN DOWN ON ROBINSON ROAD NEAR THE INTERSECTION WITH OKTOC 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 one storm report to this severe thunderstorm warning; the first came 0 minutes after it went out.

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

The nearest sounding before it

Birmingham, AL (KBMX), launched 12:00Z, 6.5 hours before the alert went out and 161 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1069 m above ground
0-6 km bulk shear: 32 kt
0-1 km storm-relative helicity: 316 m²/s²
0-3 km storm-relative helicity: 327 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

477 
WUUS54 KJAN 071832
SVRJAN
MSC025-087-105-071915-
/O.NEW.KJAN.SV.W.0085.170307T1832Z-170307T1915Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Jackson MS
1232 PM CST TUE MAR 7 2017

The National Weather Service in Jackson has issued a

* Severe Thunderstorm Warning for...
  Eastern Oktibbeha County in northeastern Mississippi...
  Southeastern Clay County in northeastern Mississippi...
  Lowndes County in northeastern Mississippi...

* Until 115 PM CST

* At 1232 PM CST, a severe thunderstorm was located over Sessums, or
  8 miles east of Starkville, moving east at 45 mph.

  HAZARD...60 mph wind gusts. 

  SOURCE...Trained weather spotters. At 1230pm 3 trees were 
           reported down near the Mississippi State Campus. 

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

* This severe thunderstorm will be near,
  Tibbee around 1235 PM CST. 
  Bent Oak around 1240 PM CST. 
  Columbus around 1250 PM CST. 
  Steens around 100 PM CST. 

Other locations impacted by this severe thunderstorm include Artesia.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3329 8830 3329 8878 3362 8879 3366 8826
TIME...MOT...LOC 1832Z 263DEG 40KT 3343 8867 

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

TW

2 follow-up statements

444 
WWUS54 KJAN 071846
SVSJAN

Severe Weather Statement
National Weather Service Jackson MS
1246 PM CST TUE MAR 7 2017

MSC025-105-071856-
/O.CAN.KJAN.SV.W.0085.000000T0000Z-170307T1915Z/
Oktibbeha MS-Clay MS-
1246 PM CST TUE MAR 7 2017

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN OKTIBBEHA AND
SOUTHEASTERN CLAY COUNTIES IS CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area Therefore, the warning has been cancelled.

LAT...LON 3329 8830 3329 8867 3353 8855 3355 8853
      3352 8848 3353 8847 3356 8850 3360 8847
      3361 8848 3364 8848 3366 8826
TIME...MOT...LOC 1846Z 263DEG 40KT 3345 8848 

$$

MSC087-071915-
/O.CON.KJAN.SV.W.0085.000000T0000Z-170307T1915Z/
Lowndes MS-
1246 PM CST TUE MAR 7 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 115 PM CST
FOR LOWNDES COUNTY...

At 1246 PM CST, a severe thunderstorm was located near Bent Oak, or
near Columbus, moving east at 45 mph.

HAZARD...60 mph wind gusts. 

SOURCE...Trained weather spotters. 

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

This severe storm will be near...
  Columbus around 1250 PM CST. 
  Steens around 100 PM CST. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3329 8830 3329 8867 3353 8855 3355 8853
      3352 8848 3353 8847 3356 8850 3360 8847
      3361 8848 3364 8848 3366 8826
TIME...MOT...LOC 1846Z 263DEG 40KT 3345 8848 

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

TW

357 
WWUS54 KJAN 071906
SVSJAN

Severe Weather Statement
National Weather Service Jackson MS
106 PM CST TUE MAR 7 2017

MSC087-071916-
/O.EXP.KJAN.SV.W.0085.000000T0000Z-170307T1915Z/
Lowndes MS-
106 PM CST TUE MAR 7 2017

...THE SEVERE THUNDERSTORM WARNING FOR LOWNDES COUNTY WILL EXPIRE AT
115 PM CST...
                
The storm which prompted the warning has weakened below severe
limits, and no longer pose an immediate threat to life or property.
Therefore the warning will be allowed to expire.

LAT...LON 3329 8830 3329 8867 3353 8855 3355 8853
      3352 8848 3353 8847 3356 8850 3360 8847
      3361 8848 3364 8848 3366 8826
TIME...MOT...LOC 1906Z 263DEG 40KT 3347 8824 

$$

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 Mar 7, 11:36 AM CST, 56 minutes earlier.

Area forecast discussion, Mar 7, 11:36 AM CST, 56 minutes before

Area Forecast Discussion...UPDATED
National Weather Service Jackson MS
1136 AM CST Tue Mar 7 2017

...SEVERE STORMS POSSIBLE TODAY...

.UPDATE...
Updated for 18Z aviation discussion

&&

.AVIATION...
18Z TAF discussion:
VFR conditions are pushing into the region from the northwest
behind the broken line of convection advancing southeast from
Starkville to Vicksburg to Rayville. Otherwise MVFR conditions
were the general rule across the region with some IFR areas where
convection was occurring. South winds continue to occasionally
gust over 20 kts. Expect mainly MVFR ceilings to continue to be
predominant for most areas through the afternoon as a cold front
pushes through the forecast area during the afternoon. The good
coverage of rain will hold off until later this afternoon at
NMM/MEI/PIB/HBG. The better rain coverage will move into
GTR/CBM/HKS/JAN by early afternoon. Thunderstorms could be locally
strong to severe and contain heavy downpours and temporary LIFR
conditions. Throughout the day thunderstorms will also pose a risk
for high wind gusts and lots of turbulence. Expect south winds to
abruptly switch to the northwest as the cold front passes through
the region with rain clearing to the south and conditions
becoming generally all VFR by midnight. /17/

&&

.DISCUSSION...
Latest area radars shows a broken line of convection extending
across the northwest delta area of the ArkLaMiss. SPC continues
the slight risk of severe across most of the area with a marginal
risk across portions of the north. Latest short term CAM models
shows a broken line advancing across the region for this
afternoon. There is still a low potential of locally heavy
rainfall for the southern portion of the region as instability
increases. So have adjusted pops and kept the mention of some
storms may becoming severe for this afternoon as instability
increases for this afternoon. Also adjusted the timing of the line
moving through the region. The line should exit the region by
this evening./17/

&&

.PRELIMINARY POINT TEMPS/POPS...
Jackson       72  46  72  50 /  84  31   0   0
Meridian      74  46  72  45 /  68  55   0   0
Vicksburg     71  44  72  50 /  70  16   0   0
Hattiesburg   76  53  73  51 /  70  80   4   0
Natchez       73  48  72  54 /  82  28   1   0
Greenville    67  41  70  47 /  95   8   0   0
Greenwood     68  40  71  46 /  72  11   0   0

&&

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

&&

17

Hazardous weather outlook, Mar 7, 11:59 AM CST, 33 minutes before

Hazardous Weather Outlook...UPDATED
National Weather Service Jackson MS
1159 AM CST Tue Mar 7 2017

ARZ074-075-LAZ007>009-015-MSZ018-019-025>027-034-035-081800-
Ashley-Chicot-Morehouse-West Carroll-East Carroll-Richland-
Bolivar-Sunflower-Leflore-Grenada-Carroll-Washington-Humphreys-
1159 AM CST Tue Mar 7 2017

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

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

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday

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 is not expected through next Monday.

LAZ016-MSZ028>033-036>042-081800-
Madison LA-Montgomery-Webster-Clay-Lowndes-Choctaw-Oktibbeha-
Holmes-Attala-Winston-Noxubee-Issaquena-Sharkey-Yazoo-
1159 AM CST Tue Mar 7 2017

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

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

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

Isolated severe thunderstorms are possible this afternoon along
and just ahead of a cold front pushing southeast into the region.
The primary risk with any severe thunderstorms will be hail up to
quarter size and wind gusts up to 60 mph, although a tornado
cannot be ruled out.

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

.DAYS TWO THROUGH SEVEN...Wednesday through Monday

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 the rest
of today.

LAZ023>026-MSZ043>051-053-054-059>061-081800-
Franklin LA-Catahoula-Tensas-Concordia-Madison MS-Leake-Neshoba-
Kemper-Warren-Hinds-Rankin-Scott-Newton-Claiborne-Copiah-
Jefferson-Adams-Franklin MS-
1159 AM CST Tue Mar 7 2017

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

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

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

Some severe thunderstorms are possible through mid afternoon
along and just ahead of a cold front pushing southeast into the
region. The primary risk with any severe thunderstorms will be
hail up to quarter size and wind gusts up to 60 mph, although a
tornado cannot be ruled out.

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

.DAYS TWO THROUGH SEVEN...Wednesday through Monday

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 the rest
of today.

MSZ052-055>058-062>066-072>074-081800-
Lauderdale-Simpson-Smith-Jasper-Clarke-Lincoln-Lawrence-
Jefferson Davis-Covington-Jones-Marion-Lamar-Forrest-
1159 AM CST Tue Mar 7 2017

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

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

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

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

Some severe thunderstorms are possible through mid afternoon
along and just ahead of a cold front pushing southeast into the
region. The primary risk with any severe thunderstorms will be
hail up to quarter size and wind gusts up to 60 mph, although a
tornado cannot be ruled out.

In addition, thunderstorms today will contain torrential
downpours. Isolated locations could receive a few inches of rain
in the span of an hour, which may cause a few flooding issues.

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

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

.DAYS TWO THROUGH SEVEN...Wednesday through Monday

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 the rest
of today.

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

Special weather statement, Mar 7, 11:10 AM CST, 1 hour 22 minutes before

Special Weather Statement
National Weather Service Jackson MS
1110 AM CST TUE MAR 7 2017

MSZ036-042-071745-
Yazoo MS-Holmes MS-
1110 AM CST TUE MAR 7 2017

...A STRONG THUNDERSTORM WILL AFFECT SOUTH CENTRAL HOLMES AND
NORTHEASTERN YAZOO COUNTIES UNTIL 1145 AM CST...

At 1109 AM CST, Meteorologists were tracking a strong thunderstorm
over Yazoo City, moving east at 45 mph.

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

This strong thunderstorm will be near...
  Benton around 1120 AM CST.
  Ebenezer and Vaughan around 1135 AM CST.

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 severe thunderstorm watch remains in effect until noon CST for
central Mississippi.

LAT...LON 3283 9002 3279 9002 3282 9048 3292 9047
      3300 9004
TIME...MOT...LOC 1709Z 262DEG 41KT 3286 9039

TW

Special weather statement, Mar 7, 11:46 AM CST, 46 minutes before

Special Weather Statement
National Weather Service Jackson MS
1146 AM CST TUE MAR 7 2017

MSZ030-071815-
Clay MS-
1146 AM CST TUE MAR 7 2017

...A STRONG THUNDERSTORM WILL AFFECT CLAY COUNTY UNTIL 1215 PM CST...

At 1146 AM CST, Meteorologists were tracking a strong thunderstorm
near Montpelier, moving east at 50 mph.

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

This strong thunderstorm will be near...
  Pala Alto around 1155 AM CST.
  West Point around 1200 PM CST.

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 severe thunderstorm watch remains in effect until noon CST for
north central and northeastern Mississippi.

LAT...LON 3358 8850 3358 8902 3375 8902 3376 8893
      3381 8893 3381 8872 3368 8872 3368 8849
      3365 8852 3364 8851 3364 8850 3362 8851
      3361 8848 3359 8848
TIME...MOT...LOC 1746Z 260DEG 42KT 3372 8887

TW

Special weather statement, Mar 7, 12:19 PM CST, 13 minutes before

Special Weather Statement
National Weather Service Jackson MS
1219 PM CST TUE MAR 7 2017

MSZ030-031-033-071845-
Lowndes MS-Oktibbeha MS-Clay MS-
1219 PM CST TUE MAR 7 2017

...A STRONG THUNDERSTORM WILL AFFECT OKTIBBEHA...SOUTHEASTERN CLAY
AND SOUTHWESTERN LOWNDES COUNTIES UNTIL 1245 PM CST...

At 1219 PM CST, Meteorologists were tracking a strong thunderstorm
over Starkville, moving east at 50 mph.

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

This strong thunderstorm will be near...
  Sessums around 1225 PM CST.
  Muldrow around 1230 PM CST.
  Tibbee around 1235 PM CST.
  Bent Oak and Waverly around 1240 PM CST.

Other locations impacted by this storm include Artesia.

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 3329 8845 3329 8893 3356 8893 3357 8846
TIME...MOT...LOC 1819Z 263DEG 42KT 3344 8881

TW

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 7, 11:10 AM CST	Special Weather Statement	JAN	Yazoo	35 min
Mar 7, 11:46 AM CST	Special Weather Statement	JAN	Clay	29 min
Mar 7, 12:19 PM CST	Special Weather Statement	JAN	Oktibbeha	26 min
Mar 7, 12:44 PM CST	Special Weather Statement	JAN	Rankin	31 min
Mar 7, 12:55 PM CST	Severe Thunderstorm Warning	JAN	Rankin	50 min
Mar 7, 1:08 PM CST	Special Weather Statement	JAN	Hinds	37 min
Mar 7, 1:10 PM CST	Severe Thunderstorm Warning	JAN	Hinds, Rankin	50 min
Mar 7, 1:15 PM CST	Special Weather Statement	JAN	Neshoba	30 min
Mar 7, 1:20 PM CST	Special Weather Statement	JAN	Copiah	25 min
Mar 7, 1:33 PM CST	Severe Thunderstorm Warning	JAN	Kemper, Neshoba, Noxubee, Winston	42 min
Mar 7, 1:35 PM CST	Severe Thunderstorm Warning	JAN	Copiah, Hinds, Rankin, Simpson	29 min
Mar 7, 1:46 PM CST	Special Weather Statement	JAN	Scott	29 min
Mar 7, 2:04 PM CST	Severe Thunderstorm Warning	JAN	Kemper, Noxubee	26 min
Mar 7, 2:22 PM CST	Severe Thunderstorm Warning	JAN	Jasper, Lauderdale, Newton, Scott, Smith	38 min
Mar 7, 2:53 PM CST	Severe Thunderstorm Warning	JAN	Clarke, Jasper, Lauderdale, Newton	67 min
Mar 7, 3:13 PM CST	Special Weather Statement	JAN	Covington, Jasper	47 min
Mar 7, 3:25 PM CST	Severe Thunderstorm Warning	JAN	Covington, Jasper, Jones, Smith	50 min
Mar 7, 4:08 PM CST	Tornado Warning	JAN	Clarke	15 min
Mar 7, 4:09 PM CST	Severe Thunderstorm Warning	JAN	Jones	29 min
Mar 7, 4:34 PM CST	Special Weather Statement	JAN	Marion	41 min
Mar 7, 5:04 PM CST	Special Weather Statement	JAN	Jones	41 min

Nearby

Severe Thunderstorm Warnings in Mississippi, 2017 Every 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.