Alert archive / Mississippi / Special Weather Statements in 2012

Special Weather Statement, NWS Jackson, MS

January 23, 2012Forrest County, Mississippi

NWS Jackson, MS issued this special weather statement at Jan 23, 2012, 6:40 AM CST for Forrest County, Mississippi. It was in force for 15 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jan 23, 2012, 6:40 AM CST (12:40 UTC)
Expired: Jan 23, 2012, 6:55 AM CST
In force: 15 min
Issued by: NWS Jackson, MS

County Forrest County, MS

The radar

The Mobile radar (KMOB), 109 km from the middle of the area, began a volume at 12:39 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

Slidell Radar S, LA (KSIL), launched 12:00Z, 0.7 hours before the alert went out and 110 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: 1319 J/kg
Mixed-layer CIN: -7 J/kg
Mixed-layer LCL: 563 m above ground
0-6 km bulk shear: 36 kt
0-1 km storm-relative helicity: 179 m²/s²
0-3 km storm-relative helicity: 134 m²/s²
Significant tornado parameter: 1.1
Supercell composite: 5.9

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Jan 23, 4:23 AM CST, 2 hours 17 minutes earlier.

Area forecast discussion, Jan 23, 4:23 AM CST, 2 hours 17 minutes before

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Hazardous weather outlook, Jan 23, 5:57 AM CST, 43 minutes before

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In the hours before

Special weather statement, Jan 23, 4:27 AM CST, 2 hours 13 minutes before

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Local storm report, Jan 23, 5:04 AM CST, 1 hour 36 minutes before

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Special weather statement, Jan 23, 5:16 AM CST, 1 hour 24 minutes before

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Special weather statement, Jan 23, 5:22 AM CST, 1 hour 18 minutes before

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Special weather statement, Jan 23, 5:46 AM CST, 54 minutes before

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Special weather statement, Jan 23, 6:40 AM CST, 0 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Jan 22, 10:06 PM CST	Severe Thunderstorm Warning	JAN	Bolivar, Sunflower	39 min
Jan 22, 10:36 PM CST	Severe Thunderstorm Warning	JAN	Bolivar, Washington	54 min
Jan 22, 10:41 PM CST	Special Weather Statement	JAN	Webster	44 min
Jan 22, 10:57 PM CST	Severe Thunderstorm Warning	JAN	Clay, Webster	26 min
Jan 22, 11:17 PM CST	Severe Thunderstorm Warning	JAN	Bolivar, Sunflower	28 min
Jan 22, 11:25 PM CST	Special Weather Statement	JAN	Clay	30 min
Jan 22, 11:32 PM CST	Special Weather Statement	JAN	Leake	28 min
Jan 22, 11:36 PM CST	Special Weather Statement	JAN	Copiah	29 min
Jan 22, 11:42 PM CST	Special Weather Statement	JAN	Webster	28 min
Jan 22, 11:47 PM CST	Severe Thunderstorm Warning	JAN	Webster	26 min
Jan 22, 11:49 PM CST	Severe Thunderstorm Warning	JAN	Copiah, Simpson	41 min
Jan 22, 11:54 PM CST	Tornado Warning	JAN	Copiah, Simpson	36 min
Jan 22, 11:59 PM CST	Severe Thunderstorm Warning	JAN	Rankin, Scott	61 min
Jan 23, 12:15 AM CST	Special Weather Statement	JAN	Leflore	30 min
Jan 23, 12:27 AM CST	Tornado Warning	JAN	Rankin, Scott, Smith	48 min
Jan 23, 12:39 AM CST	Special Weather Statement	JAN	Grenada	31 min
Jan 23, 12:39 AM CST	Severe Thunderstorm Warning	JAN	Neshoba, Newton, Scott	51 min
Jan 23, 12:44 AM CST	Severe Thunderstorm Warning	JAN	Kemper, Neshoba, Noxubee, Winston	61 min
Jan 23, 12:48 AM CST	Severe Thunderstorm Warning	JAN	Grenada, Leflore	42 min
Jan 23, 12:56 AM CST	Tornado Warning	JAN	Neshoba, Newton, Scott	49 min
Jan 23, 12:58 AM CST	Severe Thunderstorm Warning	JAN	Issaquena, Sharkey, Yazoo	33 min
Jan 23, 1:19 AM CST	Severe Thunderstorm Warning	JAN	Lowndes	35 min
Jan 23, 1:32 AM CST	Tornado Warning	JAN	Kemper, Noxubee	58 min
Jan 23, 1:34 AM CST	Special Weather Statement	JAN	Rankin	31 min
Jan 23, 1:44 AM CST	Severe Thunderstorm Warning	JAN	Noxubee	31 min
Jan 23, 1:50 AM CST	Special Weather Statement	JAN	Newton	30 min
Jan 23, 2:05 AM CST	Tornado Warning	JAN	Noxubee	12 min
Jan 23, 2:10 AM CST	Severe Thunderstorm Warning	JAN	Lauderdale, Newton	65 min
Jan 23, 2:14 AM CST	Tornado Warning	JAN	Kemper, Lauderdale, Newton	61 min
Jan 23, 2:30 AM CST	Special Weather Statement	JAN	Scott	30 min
Jan 23, 2:35 AM CST	Special Weather Statement	JAN	Lowndes	40 min
Jan 23, 2:41 AM CST	Special Weather Statement	JAN	Simpson	39 min
Jan 23, 2:54 AM CST	Severe Thunderstorm Warning	JAN	Simpson	51 min
Jan 23, 2:57 AM CST	Special Weather Statement	JAN	Clarke, Jasper	33 min
Jan 23, 3:02 AM CST	Tornado Warning	JAN	Jasper	13 min
Jan 23, 3:11 AM CST	Tornado Warning	JAN	Clarke	49 min
Jan 23, 3:24 AM CST	Special Weather Statement	JAN	Smith	31 min
Jan 23, 3:31 AM CST	Severe Thunderstorm Warning	JAN	Kemper, Lauderdale	44 min
Jan 23, 3:44 AM CST	Tornado Warning	JAN	Lauderdale	16 min
Jan 23, 4:27 AM CST	Special Weather Statement	JAN	Clarke, Covington, Jasper, Jones, Lamar, Lauderdale and 1 more	58 min
Jan 23, 5:16 AM CST	Special Weather Statement	JAN	Forrest	19 min
Jan 23, 5:22 AM CST	Special Weather Statement	JAN	Lamar, Marion	18 min
Jan 23, 5:46 AM CST	Special Weather Statement	JAN	Lamar	19 min
Jan 22, 9:53 PM CST	Severe Thunderstorm Warning	JAN	Ashley	52 min
Jan 22, 10:27 PM CST	Special Weather Statement	JAN	Chicot	28 min

Nearby

Special Weather Statements in Mississippi, 2012 Every special weather statement in 2012

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.