Alert archive / Louisiana / Special Weather Statements in 2021

Special Weather Statement, NWS Jackson, MS

May 9, 2021Madison Parish, Tensas Parish, Louisiana

NWS Jackson, MS issued this special weather statement at May 9, 2021, 2:29 PM CDT for Madison Parish, Tensas Parish, Louisiana. 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: May 9, 2021, 2:29 PM CDT (19:29 UTC)
Expired: May 9, 2021, 3:15 PM CDT
In force: 46 min
Issued by: NWS Jackson, MS

Counties Madison Parish, LA, Tensas Parish, LA

The radar

The Jackson/Brandon,MS radar (KDGX), 122 km from the middle of the area, began a volume at 19:29 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, 7.5 hours before the alert went out and 113 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: 34 J/kg
Mixed-layer CIN: -569 J/kg
Mixed-layer LCL: 741 m above ground
0-6 km bulk shear: 27 kt
0-1 km storm-relative helicity: 100 m²/s²
0-3 km storm-relative helicity: 281 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 May 9, 1:11 PM CDT, 1 hour 18 minutes earlier.

Area forecast discussion, May 9, 1:11 PM CDT, 1 hour 18 minutes before

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Hazardous weather outlook, May 9, 5:57 AM CDT, 8 hours 32 minutes before

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In the hours before

Special weather statement, May 9, 1:48 PM CDT, 41 minutes before

Special Weather Statement
National Weather Service Jackson MS
148 PM CDT Sun May 9 2021

LAZ015-091915-
Richland LA-
148 PM CDT Sun May 9 2021

...A STRONG THUNDERSTORM WILL AFFECT WESTERN RICHLAND PARISH UNTIL
215 PM CDT...

At 148 PM CDT, Meteorologists were tracking a strong thunderstorm
near Buckner, or 12 miles west of Mangham, moving east at 40 mph.

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

This strong thunderstorm will be near...
  Alto around 200 PM CDT.
  Mangham, Start and Archibald around 205 PM CDT.
  Rayville around 210 PM CDT.

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.

&&

A Severe Thunderstorm Watch remains in effect until 900 PM CDT for
northeastern Louisiana.

LAT...LON 3233 9201 3236 9201 3242 9198 3245 9195
      3259 9165 3233 9174 3233 9176 3224 9177
      3222 9180 3222 9198 3225 9200 3225 9199
      3226 9200 3227 9199 3228 9202 3229 9203
TIME...MOT...LOC 1848Z 249DEG 33KT 3233 9198

DB

Special weather statement, May 9, 2:29 PM CDT, 0 minutes before

Special Weather Statement
National Weather Service Jackson MS
229 PM CDT Sun May 9 2021

LAZ015-016-023-025-092015-
Tensas LA-Madison LA-Richland LA-Franklin LA-
229 PM CDT Sun May 9 2021

...A STRONG THUNDERSTORM WILL AFFECT TENSAS...MADISON...EASTERN
RICHLAND AND EASTERN FRANKLIN PARISHES UNTIL 315 PM CDT...

At 229 PM CDT, Meteorologists were tracking strong thunderstorms
along a line extending from near Delhi to 6 miles northwest of
Newlight to near Wisner. Movement was east at 40 mph.

Winds in excess of 40 mph will be possible with these storms.

Strong thunderstorms will be near...
  Waverly around 235 PM CDT.
  Tendal around 240 PM CDT.
  Somerset around 250 PM CDT.
  Afton and Mansford around 255 PM CDT.
  Newellton, St. Joseph, Lake Bruin and Omega around 300 PM CDT.

Other locations impacted by these storms include Richmond.

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.

&&

A Severe Thunderstorm Watch remains in effect until 900 PM CDT for
northeastern Louisiana.

LAT...LON 3220 9157 3251 9153 3254 9128 3254 9113
      3256 9111 3254 9108 3254 9110 3248 9111
      3245 9107 3244 9102 3224 9105 3220 9116
      3214 9117 3213 9109 3207 9116 3191 9120
      3189 9160 3197 9160 3197 9165 3194 9167
TIME...MOT...LOC 1929Z 265DEG 35KT 3249 9147 3219 9148 3196 9159

TW

The office that day

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

Issued	Product	Office	Counties	Lasted
May 9, 3:01 PM CDT	Special Weather Statement	JAN	Warren	44 min
May 9, 3:28 PM CDT	Special Weather Statement	JAN	Warren	47 min
May 9, 4:24 PM CDT	Special Weather Statement	JAN	Rankin	36 min
May 9, 1:48 PM CDT	Special Weather Statement	JAN	Richland	27 min
May 9, 6:39 PM CDT	Special Weather Statement	JAN	Morehouse	51 min

Nearby

Special Weather Statements in Louisiana, 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.