Alert archive / Mississippi / Severe Thunderstorm Warnings in 2013

Severe Thunderstorm Warning 371, NWS Jackson, MS

July 18, 2013Yazoo County, Mississippi

NWS Jackson, MS issued this severe thunderstorm warning at Jul 18, 2013, 2:39 PM CDT for Yazoo County, Mississippi. It was in force for 51 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jul 18, 2013, 2:39 PM CDT (19:39 UTC)
Expired: Jul 18, 2013, 3:30 PM CDT
In force: 51 min
Issued by: NWS Jackson, MS
Area: Storm-based polygon

County Yazoo County, MS

The radar

The Jackson/Brandon,MS radar (KDGX), 68 km from the middle of the area, began a volume at 19:42 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.

The nearest sounding before it

Jackson, MS (KJAN), launched 12:00Z, 7.7 hours before the alert went out and 59 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: 2180 J/kg
Mixed-layer CIN: -34 J/kg
Mixed-layer LCL: 1061 m above ground
0-6 km bulk shear: 12 kt
0-1 km storm-relative helicity: 40 m²/s²
0-3 km storm-relative helicity: 51 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

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 Jul 18, 12:23 PM CDT, 2 hours 16 minutes earlier.

Area forecast discussion, Jul 18, 12:23 PM CDT, 2 hours 16 minutes before

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Hazardous weather outlook, Jul 18, 10:35 AM CDT, 4 hours 4 minutes before

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In the hours before

Special weather statement, Jul 18, 12:32 PM CDT, 2 hours 7 minutes before

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Special weather statement, Jul 18, 12:36 PM CDT, 2 hours 3 minutes before

MSZ027-036-037-181805-
ATTALA MS-HOLMES MS-CARROLL MS-
1236 PM CDT THU JUL 18 2013

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
1236 PM CDT THU JUL 18 2013

A STRONG THUNDERSTORM CAPABLE OF PRODUCING 40 TO 50 MPH WINDS WAS
LOCATED 6 MILES EAST OF EMORY AT 1236 PM CDT...MOVING SOUTHWEST AT 15
MPH.

VERY HEAVY RAIN ALONG WITH CONTINUOUS CLOUD TO GROUND LIGHTNING ARE
ALSO POSSIBLE WITH THIS STORM.

THIS STORM IS INTENSIFYING AND COULD BECOME SEVERE.

PEOPLE IN SOUTH CENTRAL CARROLL AND EASTERN HOLMES COUNTIES SHOULD
MONITOR THIS STORM CLOSELY.

LAT...LON 3302 8996 3321 9011 3335 8980 3320 8968
TIME...MOT...LOC 1736Z 057DEG 11KT 3323 8983

AEG

Special weather statement, Jul 18, 12:51 PM CDT, 1 hour 48 minutes before

MSZ042-181835-
YAZOO MS-
1251 PM CDT THU JUL 18 2013

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
1251 PM CDT THU JUL 18 2013

A STRONG THUNDERSTORM CAPABLE OF PRODUCING DIME TO PENNY SIZE HAIL
AND 35 TO 45 MPH WINDS WAS LOCATED 3 MILES NORTH OF TINSLEY AT 1251
PM CDT...MOVING SOUTHWEST AT 15 MPH.

HEAVY RAIN ALONG WITH FREQUENT CLOUD TO GROUND LIGHTNING ARE ALSO
POSSIBLE WITH THIS STORM.

PEOPLE IN WESTERN YAZOO COUNTY SHOULD MONITOR THIS STORM CLOSELY.

LAT...LON 3289 9044 3274 9032 3254 9059 3255 9059
      3255 9065 3259 9066 3259 9069 3262 9070
      3262 9072 3263 9069 3265 9073 3269 9071
      3266 9068 3269 9067 3273 9074
TIME...MOT...LOC 1751Z 053DEG 13KT 3276 9047

JA

Special weather statement, Jul 18, 1:06 PM CDT, 1 hour 33 minutes before

MSZ018-181835-
BOLIVAR MS-
106 PM CDT THU JUL 18 2013

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
106 PM CDT THU JUL 18 2013

A STRONG THUNDERSTORM CAPABLE OF PRODUCING PEA TO DIME SIZE HAIL AND
35 TO 45 MPH WINDS WAS LOCATED 11 MILES NORTHEAST OF DEESON AT 106 PM
CDT...MOVING SOUTHWEST AT 30 MPH.

DANGEROUS CLOUD TO GROUND LIGHTNING IS ALSO POSSIBLE WITH THIS STORM.

PEOPLE IN NORTHERN BOLIVAR COUNTY SHOULD MONITOR THIS STORM CLOSELY.

LAT...LON 3401 9065 3376 9090 3388 9106 3392 9102
      3395 9105 3399 9101 3396 9098 3398 9097
      3400 9099 3403 9096 3403 9090 3409 9088
      3413 9083 3413 9066
TIME...MOT...LOC 1806Z 042DEG 27KT 3409 9072

JA

Special weather statement, Jul 18, 1:57 PM CDT, 42 minutes before

MSZ035-036-042-181925-
HUMPHREYS MS-HOLMES MS-YAZOO MS-
157 PM CDT THU JUL 18 2013

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
157 PM CDT THU JUL 18 2013

A STRONG THUNDERSTORM CAPABLE OF PRODUCING PEA TO DIME SIZE HAIL AND
40 TO 50 MPH WINDS WAS LOCATED OVER THORNTON AT 157 PM CDT...MOVING
SOUTHWEST AT 15 MPH.

VERY HEAVY RAIN ALONG WITH CONTINUOUS CLOUD TO GROUND LIGHTNING ARE
ALSO POSSIBLE WITH THIS STORM.

PEOPLE IN NORTH CENTRAL YAZOO...WEST CENTRAL HOLMES AND CENTRAL
HUMPHREYS COUNTIES SHOULD MONITOR THIS STORM CLOSELY.

LAT...LON 3291 9037 3307 9060 3324 9037 3309 9011
TIME...MOT...LOC 1857Z 056DEG 14KT 3305 9037

JA

Special weather statement, Jul 18, 2:35 PM CDT, 4 minutes before

ARZ074-075-LAZ009-MSZ019-034-035-040-041-182035-
ASHLEY AR-CHICOT AR-WASHINGTON MS-SUNFLOWER MS-SHARKEY MS-
ISSAQUENA MS-HUMPHREYS MS-EAST CARROLL LA-
235 PM CDT THU JUL 18 2013

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
235 PM CDT THU JUL 18 2013

...LINE OF GUSTY THUNDERSTORMS PUSHING SOUTHWEST THROUGH THE DELTA...

A LINE OF STRONG THUNDERSTORMS CAPABLE OF PRODUCING PEA SIZE HAIL
AND 40 TO 50 MPH WINDS WAS LOCATED FROM 5 MILES NORTH OF WINTERVILLE
TO 17 MILES SOUTHEAST OF MIDNIGHT AT 234 PM CDT...MOVING SOUTHWEST
AT 25 MPH.

VERY HEAVY RAIN ALONG WITH FREQUENT CLOUD TO GROUND LIGHTNING
STRIKES ARE ALSO POSSIBLE WITH THESE STORMS.

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.

PEOPLE IN HUMPHREYS...ISSAQUENA...SHARKEY...SOUTHWESTERN SUNFLOWER...
WASHINGTON...CHICOT AND EAST CENTRAL ASHLEY COUNTIES...AND
NORTHEASTERN EAST CARROLL PARISH SHOULD MONITOR THESE STORMS CLOSELY.

LAT...LON 3357 9123 3353 9121 3353 9090 3301 9040
      3300 9045 3293 9045 3293 9066 3283 9076
      3281 9070 3276 9069 3272 9074 3268 9067
      3269 9071 3256 9073 3257 9086 3248 9086
      3294 9131 3300 9126 3301 9137 3324 9160
TIME...MOT...LOC 1934Z 044DEG 25KT 3356 9109 3285 9040

BYB

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 17, 7:05 PM CDT	Severe Thunderstorm Warning	JAN	Claiborne, Warren	40 min
Jul 18, 12:45 AM CDT	Special Weather Statement	JAN	Lowndes	60 min
Jul 18, 1:44 AM CDT	Special Weather Statement	JAN	Clay, Lowndes, Noxubee, Oktibbeha	61 min
Jul 18, 2:49 AM CDT	Special Weather Statement	JAN	Webster	61 min
Jul 18, 3:30 AM CDT	Special Weather Statement	JAN	Noxubee	60 min
Jul 18, 3:32 AM CDT	Special Weather Statement	JAN	Lauderdale	58 min
Jul 18, 4:35 AM CDT	Special Weather Statement	JAN	Kemper, Lauderdale	30 min
Jul 18, 5:10 AM CDT	Special Weather Statement	JAN	Clarke, Jasper	45 min
Jul 18, 5:11 AM CDT	Special Weather Statement	JAN	Newton	29 min
Jul 18, 5:54 AM CDT	Special Weather Statement	JAN	Jasper, Smith	31 min
Jul 18, 6:20 AM CDT	Special Weather Statement	JAN	Smith	30 min
Jul 18, 6:48 AM CDT	Flash Flood Warning	JAN	Clarke, Jasper	117 min
Jul 18, 6:58 AM CDT	Special Weather Statement	JAN	Covington	27 min
Jul 18, 7:02 AM CDT	Severe Thunderstorm Warning	JAN	Covington, Forrest, Jefferson Davis, Jones, Lamar	28 min
Jul 18, 7:38 AM CDT	Special Weather Statement	JAN	Marion	32 min
Jul 18, 10:18 AM CDT	Special Weather Statement	JAN	Webster	47 min
Jul 18, 12:32 PM CDT	Special Weather Statement	JAN	Bolivar	28 min
Jul 18, 12:36 PM CDT	Special Weather Statement	JAN	Holmes	29 min
Jul 18, 12:51 PM CDT	Special Weather Statement	JAN	Yazoo	44 min
Jul 18, 1:06 PM CDT	Special Weather Statement	JAN	Bolivar	29 min
Jul 18, 1:16 PM CDT	Severe Thunderstorm Warning	JAN	Bolivar	44 min
Jul 18, 1:57 PM CDT	Special Weather Statement	JAN	Humphreys	28 min
Jul 18, 2:35 PM CDT	Special Weather Statement	JAN	Humphreys, Issaquena, Sharkey, Washington	60 min
Jul 18, 2:54 PM CDT	Special Weather Statement	JAN	Madison	31 min
Jul 18, 3:13 PM CDT	Severe Thunderstorm Warning	JAN	Hinds, Madison, Yazoo	47 min
Jul 18, 3:24 PM CDT	Flash Flood Warning	JAN	Sunflower	2 hr
Jul 18, 3:46 PM CDT	Special Weather Statement	JAN	Rankin	39 min
Jul 18, 3:58 PM CDT	Special Weather Statement	JAN	Hinds, Warren	47 min
Jul 18, 4:42 PM CDT	Special Weather Statement	JAN	Warren	58 min
Jul 17, 7:03 PM CDT	Special Weather Statement	JAN	Tensas	32 min
Jul 18, 3:27 PM CDT	Special Weather Statement	JAN	West Feliciana	28 min
Jul 18, 3:34 PM CDT	Special Weather Statement	JAN	West Carroll	31 min
Jul 18, 4:28 PM CDT	Special Weather Statement	JAN	East Carroll, Madison, Morehouse, West Carroll	62 min
Jul 18, 5:14 PM CDT	Special Weather Statement	JAN	Franklin, Madison, Richland	61 min
Jul 18, 6:11 PM CDT	Special Weather Statement	JAN	Franklin	39 min
Jul 18, 3:05 PM CDT	Severe Thunderstorm Warning	JAN	Chicot	40 min
Jul 18, 3:20 PM CDT	Flash Flood Warning	JAN	Chicot	115 min
Jul 18, 5:23 PM CDT	Areal Flood Warning	JAN	Chicot	3 hr

Nearby

Severe Thunderstorm Warnings in Mississippi, 2013 Every severe thunderstorm warning in 2013

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.