Alert archive / Mississippi / Special Weather Statements in 2021

Special Weather Statement, NWS Jackson, MS

June 27, 2021Jefferson Davis County, Mississippi

NWS Jackson, MS issued this special weather statement at Jun 27, 2021, 2:17 PM CDT for Jefferson Davis County, Mississippi. It was in force for 43 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: Jun 27, 2021, 2:17 PM CDT (19:17 UTC)
Expired: Jun 27, 2021, 3:00 PM CDT
In force: 43 min
Issued by: NWS Jackson, MS

County Jefferson Davis County, MS

The radar

The Jackson/Brandon,MS radar (KDGX), 96 km from the middle of the area, began a volume at 19:17 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 12:00Z, 7.3 hours before the alert went out and 104 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: 589 J/kg
Mixed-layer CIN: -31 J/kg
Mixed-layer LCL: 710 m above ground
0-6 km bulk shear: 22 kt
0-1 km storm-relative helicity: 9 m²/s²
0-3 km storm-relative helicity: 21 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 Jun 27, 1:21 PM CDT, 56 minutes earlier.

Area forecast discussion, Jun 27, 1:21 PM CDT, 56 minutes before

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Hazardous weather outlook, Jun 27, 3:37 AM CDT, 10 hours 40 minutes before

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In the hours before

Special weather statement, Jun 27, 2:17 PM CDT, 0 minutes before

Special Weather Statement
National Weather Service Jackson MS
217 PM CDT Sun Jun 27 2021

MSZ064-072-073-272000-
Jefferson Davis MS-Lamar MS-Marion MS-
217 PM CDT Sun Jun 27 2021

...A STRONG THUNDERSTORM WILL AFFECT NORTHEASTERN MARION...
NORTHWESTERN LAMAR AND SOUTHERN JEFFERSON DAVIS COUNTIES UNTIL 300 PM
CDT...

At 217 PM CDT, Meteorologists were tracking a strong thunderstorm
over Improve, or 10 miles northeast of Columbia, moving northwest at
20 mph.

Winds in excess of 40 mph will be possible with this storm.

This strong thunderstorm will be near...
  Bunker Hill around 225 PM CDT.

Other locations impacted by this storm include Bassfield.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

High winds can bring down trees and large limbs resulting in serious
injury or property damage. Exercise extreme caution when outdoors
during such strong winds...and be especially aware of older trees.

&&

LAT...LON 3147 8993 3158 8970 3156 8964 3154 8960
      3151 8960 3151 8959 3144 8959 3143 8958
      3143 8954 3130 8948 3123 8986
TIME...MOT...LOC 1917Z 152DEG 17KT 3138 8972

TW

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 27, 2:45 PM CDT	Special Weather Statement	JAN	Jefferson Davis	60 min
Jun 27, 4:40 PM CDT	Special Weather Statement	JAN	Jones	35 min
Jun 27, 5:03 PM CDT	Special Weather Statement	JAN	Jones	42 min
Jun 27, 5:13 PM CDT	Special Weather Statement	JAN	Covington	62 min
Jun 27, 5:29 PM CDT	Special Weather Statement	JAN	Jasper	46 min
Jun 27, 5:40 PM CDT	Special Weather Statement	JAN	Smith	65 min
Jun 27, 5:54 PM CDT	Special Weather Statement	JAN	Jasper	51 min
Jun 27, 6:10 PM CDT	Special Weather Statement	JAN	Smith	50 min
Jun 27, 6:32 PM CDT	Special Weather Statement	JAN	Rankin, Scott	43 min
Jun 27, 6:37 PM CDT	Special Weather Statement	JAN	Clarke	38 min

Nearby

Special Weather Statements in Mississippi, 2021 Every special weather statement in 2021

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.