Alert archive / Mississippi / Special Weather Statements in 2018

Special Weather Statement, NWS Jackson, MS

July 1, 2018Lamar County, Mississippi

NWS Jackson, MS issued this special weather statement at Jul 1, 2018, 5:01 PM CDT for Lamar County, Mississippi. It was in force for 14 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 1, 2018, 5:01 PM CDT (22:01 UTC)
Expired: Jul 1, 2018, 5:15 PM CDT
In force: 14 min
Issued by: NWS Jackson, MS

County Lamar County, MS

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 10.0 hours before the alert went out and 92 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: 894 J/kg
Mixed-layer CIN: -117 J/kg
Mixed-layer LCL: 977 m above ground
0-6 km bulk shear: 12 kt
0-1 km storm-relative helicity: 43 m²/s²
0-3 km storm-relative helicity: 70 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

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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 1, 4:18 PM CDT, 43 minutes earlier.

Area forecast discussion, Jul 1, 4:18 PM CDT, 43 minutes before

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Hazardous weather outlook, Jul 1, 4:42 PM CDT, 19 minutes before

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In the hours before

Local storm report, Jul 1, 11:06 AM CDT, 5 hours 55 minutes before

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Local storm report, Jul 1, 11:10 AM CDT, 5 hours 51 minutes before

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Special weather statement, Jul 1, 3:40 PM CDT, 1 hour 21 minutes before

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Special weather statement, Jul 1, 4:39 PM CDT, 22 minutes before

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Special weather statement, Jul 1, 5:01 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
Jun 30, 7:03 PM CDT	Special Weather Statement	JAN	Carroll	42 min
Jun 30, 7:09 PM CDT	Severe Thunderstorm Warning	JAN	Rankin, Simpson	29 min
Jun 30, 7:36 PM CDT	Special Weather Statement	JAN	Rankin	39 min
Jun 30, 7:46 PM CDT	Severe Thunderstorm Warning	JAN	Copiah, Lawrence, Lincoln	44 min
Jun 30, 8:08 PM CDT	Special Weather Statement	JAN	Leflore	52 min
Jun 30, 8:34 PM CDT	Special Weather Statement	JAN	Marion	26 min
Jun 30, 8:48 PM CDT	Special Weather Statement	JAN	Lamar	27 min
Jul 1, 10:47 AM CDT	Heat Advisory	JAN	Bolivar, Carroll, Grenada, Holmes, Humphreys, Leflore and 4 more	9 hr
Jul 1, 3:40 PM CDT	Special Weather Statement	JAN	Scott	50 min
Jul 1, 4:39 PM CDT	Special Weather Statement	JAN	Forrest	36 min
Jul 1, 5:05 PM CDT	Special Weather Statement	JAN	Covington	25 min

Nearby

Special Weather Statements in Mississippi, 2018 Every special weather statement in 2018

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.