Alert archive / Texas / Coastal Flood Statements in 2009

Coastal Flood Statement 2, NWS Houston/Galveston, TX

October 22, 2009Galveston County, Texas

NWS Houston/Galveston, TX issued this coastal flood statement at Oct 22, 2009, 12:14 AM CDT for Galveston County, Texas. It was in force for 3 hr.

The area

The counties it named.

The facts

Issued: Oct 22, 2009, 12:14 AM CDT (05:14 UTC)
Expired: Oct 22, 2009, 3:24 AM CDT
In force: 3 hr
Issued by: NWS Houston/Galveston, TX

County Galveston County, TX

The radar

The Houston radar (KHGX), 32 km from the middle of the area, began a volume at 05:14 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, 5.2 hours before the alert went out and 368 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: 20 J/kg
Mixed-layer CIN: -128 J/kg
Mixed-layer LCL: 641 m above ground
0-6 km bulk shear: 51 kt
0-1 km storm-relative helicity: 230 m²/s²
0-3 km storm-relative helicity: 192 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 coastal flood statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Houston/Galveston, TX wrote its last area forecast discussion before this coastal flood statement went out at Oct 21, 11:48 PM CDT, 26 minutes earlier.

Area forecast discussion, Oct 21, 11:48 PM CDT, 26 minutes before

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Hazardous weather outlook, Oct 21, 3:45 PM CDT, 8 hours 29 minutes before

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The office that day

Everything else NWS Houston/Galveston, TX issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Oct 21, 9:07 PM CDT	Areal Flood Advisory	HGX	Chambers	113 min
Oct 21, 10:03 PM CDT	Small Craft Advisory	HGX		36 hr
Oct 22, 3:24 AM CDT	Coastal Flood Advisory	HGX	Galveston	10 hr
Oct 22, 3:33 AM CDT	Small Craft Advisory	HGX		30 hr
Oct 22, 4:28 AM CDT	Special Marine Warning	HGX		62 min
Oct 22, 4:31 AM CDT	Special Weather Statement	HGX	Chambers	59 min
Oct 22, 5:08 AM CDT	Areal Flood Advisory	HGX	Brazoria, Chambers, Fort Bend, Galveston, Harris, Liberty and 6 more	112 min
Oct 22, 5:26 AM CDT	Special Weather Statement	HGX	Liberty	64 min
Oct 22, 6:46 AM CDT	Flash Flood Warning	HGX	Brazoria, Chambers, Fort Bend, Galveston, Harris, Liberty	119 min
Oct 22, 7:01 AM CDT	Tornado Warning	HGX	Chambers, Liberty	44 min
Oct 22, 7:44 AM CDT	River Flood Warning	HGX	Galveston, Harris	6 hr
Oct 22, 7:56 AM CDT	Special Marine Warning	HGX		2 hr

Nearby

Coastal Flood Statements in Texas, 2009 Every coastal flood statement in 2009

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.