Alert archive / Mississippi / Special Weather Statements in 2015

Special Weather Statement, NWS Jackson, MS

April 10, 2015Forrest County, Mississippi

NWS Jackson, MS issued this special weather statement at Apr 10, 2015, 3:12 PM CDT for Forrest County, Mississippi. It was in force for 18 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: Apr 10, 2015, 3:12 PM CDT (20:12 UTC)
Expired: Apr 10, 2015, 3:30 PM CDT
In force: 18 min
Issued by: NWS Jackson, MS

County Forrest County, MS

The radar

The Mobile radar (KMOB), 101 km from the middle of the area, began a volume at 20:12 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, 8.2 hours before the alert went out and 103 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: 2192 J/kg
Mixed-layer CIN: -6 J/kg
Mixed-layer LCL: 611 m above ground
0-6 km bulk shear: 18 kt
0-1 km storm-relative helicity: 73 m²/s²
0-3 km storm-relative helicity: 110 m²/s²
Significant tornado parameter: 0.6
Supercell composite: 3.9

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 Apr 10, 10:26 AM CDT, 4 hours 46 minutes earlier.

Area forecast discussion, Apr 10, 10:26 AM CDT, 4 hours 46 minutes before

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Hazardous weather outlook, Apr 10, 2:24 PM CDT, 48 minutes before

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In the hours before

Local storm report, Apr 10, 12:43 PM CDT, 2 hours 29 minutes before

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Special weather statement, Apr 10, 3:12 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
Apr 10, 12:26 AM CDT	Special Weather Statement	JAN	Grenada	49 min
Apr 10, 2:34 AM CDT	Special Weather Statement	JAN	Bolivar	26 min
Apr 10, 3:41 AM CDT	Special Weather Statement	JAN	Sunflower, Washington	34 min
Apr 10, 5:37 AM CDT	Severe Thunderstorm Warning	JAN	Carroll, Holmes	20 min
Apr 9, 7:16 PM CDT	Special Weather Statement	JAN	Chicot	29 min
Apr 9, 11:25 PM CDT	Flash Flood Warning	JAN	Ashley, Chicot	3 hr
Apr 10, 2:21 AM CDT	Special Weather Statement	JAN	Chicot	24 min
Apr 10, 2:27 AM CDT	Flash Flood Warning	JAN	Ashley, Chicot	3 hr

Nearby

Special Weather Statements in Mississippi, 2015 Every special weather statement in 2015

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.