Alert archive / Texas / Special Weather Statements in 2021

Special Weather Statement, NWS Shreveport, LA

July 11, 2021Cherokee County, Texas

NWS Shreveport, LA issued this special weather statement at Jul 11, 2021, 8:40 PM CDT for Cherokee County, Texas. It was in force for 50 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: Jul 11, 2021, 8:40 PM CDT (01:40 UTC)
Expired: Jul 11, 2021, 9:30 PM CDT
In force: 50 min
Issued by: NWS Shreveport, LA

County Cherokee County, TX

The radar

The Shreveport radar (KSHV), 135 km from the middle of the area, began a volume at 01:41 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

Shreveport, LA (KSHV), launched 00:00Z, 1.7 hours before the alert went out and 145 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: 868 J/kg
Mixed-layer CIN: -52 J/kg
Mixed-layer LCL: 1186 m above ground
0-6 km bulk shear: 30 kt
0-1 km storm-relative helicity: 137 m²/s²
0-3 km storm-relative helicity: 163 m²/s²
Significant tornado parameter: 0.3
Supercell composite: 3.5

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 Jul 11, 7:15 PM CDT, 1 hour 25 minutes earlier.

Area forecast discussion, Jul 11, 7:15 PM CDT, 1 hour 25 minutes before

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Hazardous weather outlook, Jul 11, 12:07 PM CDT, 8 hours 33 minutes before

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In the hours before

Special weather statement, Jul 11, 6:15 PM CDT, 2 hours 25 minutes before

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Special weather statement, Jul 11, 7:12 PM CDT, 1 hour 28 minutes before

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Special weather statement, Jul 11, 7:23 PM CDT, 1 hour 17 minutes before

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Special weather statement, Jul 11, 8:03 PM CDT, 37 minutes before

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Special weather statement, Jul 11, 8:31 PM CDT, 9 minutes before

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Special weather statement, Jul 11, 8:40 PM 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
Jul 11, 7:23 PM CDT	Special Weather Statement	SHV	Rusk	52 min
Jul 11, 8:25 PM CDT	Areal Flood Advisory	SHV	Rusk	110 min
Jul 11, 8:31 PM CDT	Special Weather Statement	SHV	Rusk	44 min
Jul 11, 9:10 PM CDT	Flash Flood Warning Considerable damage threat	SHV	Cherokee, Panola, Rusk, Shelby, Smith	3 hr
Jul 11, 9:49 PM CDT	Special Weather Statement	SHV	Cherokee	41 min
Jul 11, 10:27 PM CDT	Special Weather Statement	SHV	Nacogdoches	48 min
Jul 11, 10:50 PM CDT	Special Weather Statement	SHV	Smith	40 min
Jul 11, 11:12 PM CDT	Special Weather Statement	SHV	Smith	48 min
Jul 11, 11:15 PM CDT	Special Weather Statement	SHV	Gregg	45 min
Jul 12, 12:13 AM CDT	Flash Flood Warning	SHV	Cherokee, Rusk, Smith	4 hr
Jul 12, 2:10 AM CDT	Areal Flood Advisory	SHV	Cherokee, Nacogdoches	3 hr
Jul 12, 6:28 AM CDT	River Flood Warning	SHV	Anderson, Cherokee, Houston, Trinity	21 days
Jul 12, 6:28 AM CDT	River Flood Warning	SHV	Nacogdoches, Rusk	25 hr
Jul 12, 8:20 AM CDT	River Flood Warning	SHV	Angelina, Houston, Polk, Trinity, Tyler	11 days
Jul 12, 1:56 PM CDT	Special Weather Statement	SHV	Wood	49 min
Jul 12, 2:37 PM CDT	Severe Thunderstorm Warning	SHV	Wood	43 min
Jul 11, 7:12 PM CDT	Special Weather Statement	SHV	Red River	48 min
Jul 11, 8:03 PM CDT	Special Weather Statement	SHV	Webster	42 min
Jul 11, 8:53 PM CDT	Special Weather Statement	SHV	Caddo	52 min
Jul 12, 6:15 AM CDT	Special Weather Statement	SHV	LaSalle	30 min
Jul 12, 2:28 PM CDT	Special Weather Statement	SHV	Lafayette	47 min

Nearby

Special Weather Statements in Texas, 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.