Alert archive / Texas / Areal Flood Advisories in 2018

Areal Flood Advisory 21, NWS Lake Charles, LA

June 9, 2018Hardin County, Jefferson County, Orange County, Texas

NWS Lake Charles, LA issued this areal flood advisory at Jun 9, 2018, 4:34 PM CDT for Hardin County, Jefferson County, Orange County, Texas. It was in force for 116 min.

The area

The counties it named.

The facts

Issued: Jun 9, 2018, 4:34 PM CDT (21:34 UTC)
Expired: Jun 9, 2018, 6:30 PM CDT
In force: 116 min
Issued by: NWS Lake Charles, LA
Area: Storm-based polygon

Counties Hardin County, TX, Jefferson County, TX, Orange County, TX

The radar

The Lake Charles radar (KLCH), 89 km from the middle of the area, began a volume at 21:37 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

Lake Charles Mun, LA (KLCH), launched 12:00Z, 9.6 hours before the alert went out and 91 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: 1863 J/kg
Mixed-layer CIN: -11 J/kg
Mixed-layer LCL: 803 m above ground
0-6 km bulk shear: 9 kt
0-1 km storm-relative helicity: -4 m²/s²
0-3 km storm-relative helicity: 19 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this areal flood advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Lake Charles, LA wrote its last area forecast discussion before this areal flood advisory went out at Jun 9, 3:01 PM CDT, 1 hour 33 minutes earlier.

Area forecast discussion, Jun 9, 3:01 PM CDT, 1 hour 33 minutes before

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Hazardous weather outlook, Jun 9, 3:15 PM CDT, 1 hour 19 minutes before

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In the hours before

Special weather statement, Jun 9, 1:22 PM CDT, 3 hours 12 minutes before

Special Weather Statement
National Weather Service Lake Charles LA
122 PM CDT SAT JUN 9 2018

LAZ030-041-091845-
Calcasieu LA-Beauregard LA-
122 PM CDT SAT JUN 9 2018

...SPECIAL WEATHER STATEMENT...

At 122 PM CDT, Doppler radar was tracking a strong thunderstorm over
Buhler, or 7 miles north of Sulphur, moving northeast at 15 mph.

Half inch hail and winds in excess of 30 mph will be possible with
this storm.

Locations impacted include...
Lake Charles, De Quincy, Moss Bluff, Ragley, Dequincy, Buhler and
Gillis.

LAT...LON 3042 9351 3056 9318 3040 9313 3038 9313
      3038 9312 3030 9310 3024 9342
TIME...MOT...LOC 1822Z 245DEG 11KT 3034 9337

Warthen

Special weather statement, Jun 9, 2:50 PM CDT, 1 hour 44 minutes before

Special Weather Statement
National Weather Service Lake Charles LA
250 PM CDT SAT JUN 9 2018

TXZ201-215-216-261-092030-
Orange TX-Jefferson TX-Hardin TX-Southern Jasper TX-
250 PM CDT SAT JUN 9 2018

...SPECIAL WEATHER STATEMENT...

At 250 PM CDT, Doppler radar was tracking a strong thunderstorm near
Lakeview, or near Beaumont, moving northeast at 5 mph.

Half inch hail and winds in excess of 30 mph will be possible with
this storm.

Locations impacted include...
Beaumont, Vidor, Rose City, Pine Forest and Lakeview.

LAT...LON 3007 9415 3021 9421 3029 9399 3010 9391
TIME...MOT...LOC 1950Z 247DEG 5KT 3016 9410

Warthen

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 9, 1:22 PM CDT	Special Weather Statement	LCH	Calcasieu	23 min
Jun 9, 2:50 PM CDT	Special Weather Statement	LCH	Orange	40 min
Jun 9, 2:58 PM CDT	Severe Thunderstorm Warning	LCH	Orange	15 min
Jun 9, 3:35 PM CDT	Areal Flood Advisory	LCH	Jefferson, Orange	115 min

Nearby

Areal Flood Advisories in Texas, 2018 Every areal flood advisory 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.