Alert archive / Mississippi / Special Weather Statements in 2012

Special Weather Statement, NWS Jackson, MS

July 17, 2012Jasper County, Mississippi

NWS Jackson, MS issued this special weather statement at Jul 17, 2012, 11:09 PM CDT for Jasper County, Mississippi. It was in force for 46 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: Jul 17, 2012, 11:09 PM CDT (04:09 UTC)
Expired: Jul 17, 2012, 11:55 PM CDT
In force: 46 min
Issued by: NWS Jackson, MS

County Jasper County, MS

The radar

The Jackson/Brandon,MS radar (KDGX), 106 km from the middle of the area, began a volume at 04:10 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 00:00Z, 4.2 hours before the alert went out and 195 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: 15 J/kg
Mixed-layer CIN: -119 J/kg
Mixed-layer LCL: 2015 m above ground
0-6 km bulk shear: 9 kt
0-1 km storm-relative helicity: 4 m²/s²
0-3 km storm-relative helicity: 16 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

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 Jul 17, 10:17 PM CDT, 52 minutes earlier.

Area forecast discussion, Jul 17, 10:17 PM CDT, 52 minutes before

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Hazardous weather outlook, Jul 17, 1:59 PM CDT, 9 hours 10 minutes before

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In the hours before

Special weather statement, Jul 17, 6:01 PM CDT, 5 hours 8 minutes before

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Special weather statement, Jul 17, 7:29 PM CDT, 3 hours 40 minutes before

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Special weather statement, Jul 17, 8:56 PM CDT, 2 hours 13 minutes before

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Special weather statement, Jul 17, 10:05 PM CDT, 1 hour 4 minutes before

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Special weather statement, Jul 17, 11:09 PM CDT, 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
Jul 17, 7:29 PM CDT	Special Weather Statement	JAN	Clarke	31 min
Jul 17, 8:56 PM CDT	Special Weather Statement	JAN	Forrest	44 min
Jul 17, 10:05 PM CDT	Special Weather Statement	JAN	Clarke	45 min
Jul 17, 10:34 PM CDT	Flash Flood Warning	JAN	Clarke	116 min
Jul 18, 12:13 PM CDT	Special Weather Statement	JAN	Clay, Kemper, Lowndes, Neshoba, Noxubee, Oktibbeha and 1 more	72 min
Jul 18, 1:22 PM CDT	Special Weather Statement	JAN	Clarke, Lauderdale	58 min
Jul 18, 1:38 PM CDT	Severe Thunderstorm Warning	JAN	Lauderdale	52 min
Jul 18, 2:15 PM CDT	Special Weather Statement	JAN	Neshoba	30 min
Jul 18, 2:22 PM CDT	Special Weather Statement	JAN	Winston	33 min
Jul 18, 2:24 PM CDT	Special Weather Statement	JAN	Clarke	31 min
Jul 18, 2:28 PM CDT	Special Weather Statement	JAN	Lowndes	32 min
Jul 18, 2:30 PM CDT	Special Weather Statement	JAN	Smith	30 min
Jul 18, 2:34 PM CDT	Special Weather Statement	JAN	Lowndes	31 min
Jul 18, 2:59 PM CDT	Special Weather Statement	JAN	Webster	31 min
Jul 18, 3:04 PM CDT	Special Weather Statement	JAN	Jasper	31 min
Jul 18, 3:07 PM CDT	Severe Thunderstorm Warning	JAN	Clarke, Jasper	38 min
Jul 18, 3:26 PM CDT	Severe Thunderstorm Warning	JAN	Choctaw, Oktibbeha, Webster	35 min
Jul 18, 3:31 PM CDT	Special Weather Statement	JAN	Webster	29 min
Jul 18, 3:44 PM CDT	Special Weather Statement	JAN	Forrest	31 min
Jul 18, 3:44 PM CDT	Severe Thunderstorm Warning	JAN	Montgomery, Webster	21 min
Jul 18, 4:15 PM CDT	Special Weather Statement	JAN	Covington	30 min
Jul 18, 4:30 PM CDT	Special Weather Statement	JAN	Leake	30 min
Jul 18, 4:42 PM CDT	Special Weather Statement	JAN	Forrest	28 min
Jul 18, 4:54 PM CDT	Special Weather Statement	JAN	Attala	31 min
Jul 18, 4:55 PM CDT	Flash Flood Warning	JAN	Forrest	2 hr
Jul 18, 4:58 PM CDT	Special Weather Statement	JAN	Smith	32 min
Jul 18, 5:03 PM CDT	Special Weather Statement	JAN	Leake	32 min
Jul 18, 5:39 PM CDT	Special Weather Statement	JAN	Holmes	31 min
Jul 18, 5:43 PM CDT	Flash Flood Warning	JAN	Lamar	88 min
Jul 18, 5:55 PM CDT	Special Weather Statement	JAN	Rankin	30 min
Jul 18, 6:24 PM CDT	Special Weather Statement	JAN	Hinds	41 min
Jul 18, 6:26 PM CDT	Special Weather Statement	JAN	Madison	29 min
Jul 18, 6:47 PM CDT	Special Weather Statement	JAN	Rankin	28 min
Jul 18, 6:53 PM CDT	Flash Flood Warning	JAN	Hinds, Madison, Rankin	93 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.