Alert archive / Mississippi / Ice Storm Warnings in 2013

Ice Storm Warning 1, NWS Jackson, MS

January 14, 201313 counties in Mississippi; 6 parishes in Louisiana; Ashley County, Chicot County, Arkansas

NWS Jackson, MS issued this ice storm warning at Jan 14, 2013, 3:40 AM CST for 13 counties in Mississippi; 6 parishes in Louisiana; Ashley County, Chicot County, Arkansas. It took effect at Jan 14, 2013, 6:00 AM CST. It was in force for 46 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jan 14, 2013, 3:40 AM CST (09:40 UTC)
In effect from: Jan 14, 2013, 6:00 AM CST
Expired: Jan 16, 2013, 4:09 AM CST
In force: 46 hr
Issued by: NWS Jackson, MS

All 21 counties

Ashley County, AR, Chicot County, AR, East Carroll Parish, LA, Franklin Parish, LA, Madison Parish, LA, Morehouse Parish, LA, Richland Parish, LA, West Carroll Parish, LA, Bolivar County, MS, Carroll County, MS, Grenada County, MS, Holmes County, MS, Humphreys County, MS, Issaquena County, MS, Leflore County, MS, Montgomery County, MS, Sharkey County, MS, Sunflower County, MS, Washington County, MS, Webster County, MS, Yazoo County, MS

The radar

The Jackson/Brandon,MS radar (KDGX), 117 km from the middle of the area, began a volume at 09:41 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 00:00Z, 9.7 hours before the alert went out and 108 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: 3 J/kg
Mixed-layer CIN: 0 J/kg
Mixed-layer LCL: 458 m above ground
0-6 km bulk shear: 64 kt
0-1 km storm-relative helicity: -146 m²/s²
0-3 km storm-relative helicity: 117 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this ice storm 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 ice storm warning went out at Jan 13, 10:22 PM CST, 5 hours 18 minutes earlier.

Area forecast discussion, Jan 13, 10:22 PM CST, 5 hours 18 minutes before

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Hazardous weather outlook, Jan 13, 4:06 PM CST, 11 hours 34 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 13, 9:16 PM CST	River Flood Warning	JAN	Jones	6 days
Jan 13, 9:16 PM CST	River Flood Warning	JAN	Clarke	62 hr
Jan 14, 3:40 AM CST	Freezing Rain Advisory	JAN	Attala, Carroll, Choctaw, Clay, Grenada, Hinds and 11 more	16 hr
Jan 14, 2:57 PM CST	Flash Flood Warning	JAN	Hinds, Madison	2 hr
Jan 14, 4:27 PM CST	Flash Flood Warning	JAN	Lowndes	3 hr
Jan 14, 4:36 PM CST	River Flood Warning	JAN	Leake	10 days
Jan 14, 4:36 PM CST	River Flood Warning	JAN	Leake	5 days
Jan 14, 5:38 PM CST	Areal Flood Warning	JAN	Morehouse	48 hr

Nearby

Ice Storm Warnings in Mississippi, 2013 Ice Storm Warnings in Louisiana, 2013 Ice Storm Warnings in Arkansas, 2013 Every ice storm 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.