Alert archive / Louisiana / Special Weather Statements in 2018

Special Weather Statement, NWS Shreveport, LA

March 28, 2018Caddo Parish, Louisiana

NWS Shreveport, LA issued this special weather statement at Mar 28, 2018, 1:08 AM CDT for Caddo Parish, Louisiana. It was in force for 37 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: Mar 28, 2018, 1:08 AM CDT (06:08 UTC)
Expired: Mar 28, 2018, 1:45 AM CDT
In force: 37 min
Issued by: NWS Shreveport, LA

County Caddo Parish, LA

The radar

The Shreveport radar (KSHV), 12 km from the middle of the area, began a volume at 06:12 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

Shreveport, LA (KBAD), launched 00:00Z, 6.1 hours before the alert went out and 18 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: 171 J/kg
Mixed-layer CIN: -41 J/kg
Mixed-layer LCL: 1231 m above ground
0-6 km bulk shear: 45 kt
0-1 km storm-relative helicity: 91 m²/s²
0-3 km storm-relative helicity: 112 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 1.5

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 Shreveport, LA wrote its last area forecast discussion before this special weather statement went out at Mar 28, 12:16 AM CDT, 52 minutes earlier.

Area forecast discussion, Mar 28, 12:16 AM CDT, 52 minutes before

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Hazardous weather outlook, Mar 27, 12:21 PM CDT, 12 hours 47 minutes before

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In the hours before

Special weather statement, Mar 28, 12:39 AM CDT, 29 minutes before

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Special weather statement, Mar 28, 1:08 AM CDT, 0 minutes before

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The office that day

Everything else NWS Shreveport, LA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Mar 27, 8:02 PM CDT	River Flood Warning	SHV	Anderson, Cherokee, Houston	14 days
Mar 27, 8:02 PM CDT	River Flood Warning	SHV	Anderson, Cherokee, Houston, Trinity	7 days
Mar 27, 8:02 PM CDT	River Flood Warning	SHV	Angelina, Houston, Polk, Trinity, Tyler	16 days
Mar 27, 8:03 PM CDT	River Flood Warning	SHV	Cherokee, Nacogdoches, Rusk, Smith	4 days
Mar 27, 8:03 PM CDT	River Flood Warning	SHV	Nacogdoches, Rusk	4 days
Mar 27, 8:05 PM CDT	River Flood Warning	SHV	Nacogdoches, Rusk, San Augustine, Shelby	10 days
Mar 27, 8:14 PM CDT	River Flood Warning	SHV	Smith, Wood	3 days
Mar 27, 8:16 PM CDT	River Flood Warning	SHV	Gregg	5 days
Mar 28, 12:39 AM CDT	Special Weather Statement	SHV	Panola	51 min
Mar 28, 11:42 AM CDT	River Flood Warning	SHV	Sabine, San Augustine	3 days
Mar 28, 11:45 AM CDT	River Flood Warning	SHV	Gregg, Harrison, Panola, Rusk	5 days
Mar 28, 11:49 AM CDT	Special Weather Statement	SHV	Angelina	41 min
Mar 28, 12:30 PM CDT	Special Weather Statement	SHV	San Augustine	45 min
Mar 28, 12:34 PM CDT	Areal Flood Advisory	SHV	Nacogdoches, Panola, Rusk, Shelby	3 hr
Mar 28, 12:44 PM CDT	Areal Flood Advisory	SHV	Angelina, Nacogdoches, San Augustine, Shelby	3 hr
Mar 28, 1:29 PM CDT	Special Weather Statement	SHV	Sabine, San Augustine	46 min
Mar 28, 1:13 PM CDT	Special Weather Statement	SHV	De Soto	47 min
Mar 28, 1:36 PM CDT	Areal Flood Advisory	SHV	De Soto, Sabine	3 hr
Mar 28, 1:56 PM CDT	Special Weather Statement	SHV	Bienville, Red River	49 min
Mar 28, 2:14 PM CDT	Special Weather Statement	SHV	Natchitoches, Sabine	46 min
Mar 28, 2:42 PM CDT	Special Weather Statement	SHV	Red River	48 min
Mar 28, 3:01 PM CDT	Severe Thunderstorm Warning	SHV	Bienville, Jackson, Natchitoches, Winn	59 min
Mar 28, 3:25 PM CDT	Tornado Warning	SHV	Jackson, Natchitoches, Winn	35 min
Mar 28, 3:55 PM CDT	Severe Thunderstorm Warning	SHV	Caldwell, Grant, Jackson, LaSalle, Ouachita, Winn	50 min
Mar 28, 3:59 PM CDT	Tornado Warning	SHV	Caldwell, LaSalle, Winn	31 min
Mar 28, 4:16 PM CDT	Tornado Warning	SHV	Jackson, Ouachita	29 min
Mar 28, 4:26 PM CDT	Tornado Warning	SHV	Caldwell	34 min
Mar 28, 4:32 PM CDT	Special Weather Statement	SHV	Grant	43 min
Mar 28, 4:42 PM CDT	Severe Thunderstorm Warning	SHV	Caldwell, LaSalle, Ouachita	33 min
Mar 28, 4:56 PM CDT	Severe Thunderstorm Warning	SHV	Grant, LaSalle, Natchitoches, Winn	53 min
Mar 28, 5:00 PM CDT	Tornado Warning	SHV	Grant, LaSalle, Winn	30 min

Nearby

Special Weather Statements in Louisiana, 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; radar from the NEXRAD Level II archive.