Alert archive / Texas / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 179, NWS Shreveport, LA

May 26, 20164 counties in Texas

NWS Shreveport, LA issued this severe thunderstorm warning at May 26, 2016, 2:41 PM CDT for 4 counties in Texas. It was in force for 22 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: May 26, 2016, 2:41 PM CDT (19:41 UTC)
Expired: May 26, 2016, 3:03 PM CDT
In force: 22 min
Issued by: NWS Shreveport, LA
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Gregg County, TX, Rusk County, TX, Smith County, TX, Upshur County, TX

The radar

The Shreveport radar (KSHV), 104 km from the middle of the area, began a volume at 19:43 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

Fort Worth, TX (KFWD), launched 12:00Z, 7.7 hours before the alert went out and 224 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: 3416 J/kg
Mixed-layer CIN: -76 J/kg
Mixed-layer LCL: 661 m above ground
0-6 km bulk shear: 13 kt
0-1 km storm-relative helicity: 35 m²/s²
0-3 km storm-relative helicity: 122 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 4.9

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm warning 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 severe thunderstorm warning went out at May 26, 12:53 PM CDT, 1 hour 48 minutes earlier.

Area forecast discussion, May 26, 12:53 PM CDT, 1 hour 48 minutes before

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Hazardous weather outlook, May 26, 12:12 PM CDT, 2 hours 29 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SHREVEPORT LA
1212 PM CDT THU MAY 26 2016

ARZ050-051-059>061-070>073-LAZ001>006-010>014-017>022-OKZ077-
TXZ096-097-108>112-124>126-136>138-149>153-165>167-271715-
SEVIER-HOWARD-LITTLE RIVER-HEMPSTEAD-NEVADA-MILLER-LAFAYETTE-
COLUMBIA-UNION-CADDO-BOSSIER-WEBSTER-CLAIBORNE-LINCOLN-DE SOTO-
RED RIVER-BIENVILLE-JACKSON-OUACHITA-SABINE-NATCHITOCHES-WINN-
GRANT-CALDWELL-LA SALLE-MCCURTAIN-BOWIE-FRANKLIN-TITUS-CAMP-
MORRIS-CASS-WOOD-UPSHUR-MARION-SMITH-GREGG-HARRISON-CHEROKEE-RUSK-
PANOLA-NACOGDOCHES-SHELBY-ANGELINA-SAN AUGUSTINE-
1212 PM CDT THU MAY 26 2016

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTH CENTRAL
ARKANSAS...SOUTHWEST ARKANSAS...NORTH CENTRAL LOUISIANA...
NORTHWEST LOUISIANA...SOUTHEAST OKLAHOMA...EAST TEXAS AND
NORTHEAST TEXAS.

.DAY ONE...THIS AFTERNOON AND TONIGHT...

SHOWERS AND THUNDERSTORMS WILL INCREASE IN COVERAGE TODAY. SOME
STORMS MAY BECOME SEVERE ACROSS NORTHEAST TEXAS...SOUTHWEST
ARKANSAS...AND SOUTHEAST OKLAHOMA LATER THIS AFTERNOON. DAMAGING
WINDS AND LARGE HAIL WILL BE THE MAIN THREAT...BUT ISOLATED
TORNADOES ARE POSSIBLE. LOCALLY HEAVY RAINFALL IS ALSO POSSIBLE
IN SOME STORMS.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY...

SHOWERS AND THUNDERSTORMS WILL EXTEND INTO FRIDAY WITH A FEW
SEVERE STORMS POSSIBLE DURING THE AFTERNOON ACROSS SOUTHEAST
OKLAHOMA...NORTHEAST TEXAS AND PORTIONS OF SOUTHWEST ARKANSAS.
LOCALLY HEAVY RAINFALL...DAMAGING WINDS...LARGE HAIL...AND
ISOLATED TORNADOES WILL BE THE MAIN THREATS. AFTERNOON SHOWERS AND
THUNDERSTORMS CAN BE EXPECTED THROUGH MOST OF THE WEEKEND AND INTO
NEXT WEEK.

.SPOTTER INFORMATION STATEMENT...

THE ACTIVATION OF EMERGENCY MANAGEMENT PERSONNEL...AMATEUR RADIO
OPERATORS...AND STORM SPOTTERS MAY BE POSSIBLE THIS AFTERNOON.

20

In the hours before

Special weather statement, May 26, 11:12 AM CDT, 3 hours 29 minutes before

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Special weather statement, May 26, 11:41 AM CDT, 3 hours before

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Special weather statement, May 26, 12:20 PM CDT, 2 hours 21 minutes before

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Special weather statement, May 26, 1:58 PM CDT, 43 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
May 26, 11:12 AM CDT	Special Weather Statement	SHV	Bowie	48 min
May 26, 11:41 AM CDT	Special Weather Statement	SHV	Red River	49 min
May 26, 1:58 PM CDT	Special Weather Statement	SHV	Bowie	47 min
May 26, 3:42 PM CDT	Special Weather Statement	SHV	Cherokee	48 min
May 26, 3:59 PM CDT	Areal Flood Advisory	SHV	Cherokee	3 hr
May 26, 5:18 PM CDT	Special Weather Statement	SHV	Nacogdoches	42 min
May 26, 5:27 PM CDT	Areal Flood Advisory	SHV	Angelina, Cherokee	3 hr
May 26, 6:30 PM CDT	Areal Flood Advisory	SHV	Angelina, Cherokee, Nacogdoches	2 hr
May 26, 5:53 PM CDT	Special Weather Statement	SHV	Claiborne	37 min
May 26, 5:55 PM CDT	Special Weather Statement	SHV	Caldwell	50 min
May 26, 6:41 PM CDT	Special Weather Statement	SHV	Union	34 min

Nearby

Severe Thunderstorm Warnings in Texas, 2016 Every severe thunderstorm warning in 2016

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.