Alert archive / Texas / Flash Flood Warnings in 2009

Flash Flood Warning 21, NWS Corpus Christi, TX

October 3, 2009Refugio County, Texas

NWS Corpus Christi, TX issued this flash flood warning at Oct 3, 2009, 11:44 PM CDT for Refugio County, Texas. It was in force for 31 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: Oct 3, 2009, 11:44 PM CDT (04:44 UTC)
Expired: Oct 4, 2009, 12:15 AM CDT
In force: 31 min
Issued by: NWS Corpus Christi, TX
Area: Storm-based polygon
Flood severity: None

County Refugio County, TX

The radar

The Corpus Christi radar (KCRP), 92 km from the middle of the area, began a volume at 04:46 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

Corpus Christi, TX (KCRP), launched 00:00Z, 4.7 hours before the alert went out and 89 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: 2963 J/kg
Mixed-layer CIN: 0 J/kg
Mixed-layer LCL: 676 m above ground
0-6 km bulk shear: 46 kt
0-1 km storm-relative helicity: 125 m²/s²
0-3 km storm-relative helicity: 212 m²/s²
Significant tornado parameter: 3.5
Supercell composite: 13.5

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WGUS54 KCRP 040444
FFWCRP
TXC391-040515-
/O.NEW.KCRP.FF.W.0021.091004T0444Z-091004T0515Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
1144 PM CDT SAT OCT 3 2009

THE NATIONAL WEATHER SERVICE IN CORPUS CHRISTI HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTHEASTERN REFUGIO COUNTY IN SOUTH TEXAS...

* UNTIL 1215 AM CDT

* AT 1142 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE WARNED AREA.     
  DOPPLER RADAR ESTIMATED RAINFALL RATES OF 2 TO 3 INCHES PER HOUR   
  OVER EXTREME EASTERN REFUGIO COUNTY.

* SLOW MOVING THUNDERSTORMS ARE PRODUCING TORRENTIAL RAINFALL IN THE
  WARNED AREA. RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE
  FLOODING TO OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING
  INCLUDE...TIVOLI.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. MOVE
UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS
SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY. MOVE TO HIGHER GROUND.

&&

LAT...LON 2849 9695 2847 9692 2849 9690 2847 9686
      2843 9685 2841 9687 2835 9680 2832 9679
      2829 9696 2851 9719 2854 9714 2853 9708
      2853 9706 2850 9701

$$

87

1 follow-up statement

000 
WGUS74 KCRP 040509
FFSCRP

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
1209 AM CDT SUN OCT 4 2009

TXC391-040516-
/O.EXP.KCRP.FF.W.0021.000000T0000Z-091004T0515Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
REFUGIO-
1209 AM CDT SUN OCT 4 2009

...THE FLASH FLOOD WARNING WILL EXPIRE AT 1215 AM CDT FOR
NORTHEASTERN REFUGIO COUNTY...

THE HEAVY RAINFALL...ASSOCIATED WITH SCATTERED TO NUMEROUS SHOWERS 
AND THUNDERSTORMS...HAVE MOVED EAST OF REFUGIO COUNTY. THUS...WILL 
ALLOW THE FLASH FLOOD WARNING TO EXPIRE.

LAT...LON 2849 9695 2847 9692 2849 9690 2847 9686
      2843 9685 2841 9687 2835 9680 2832 9679
      2829 9696 2851 9719 2854 9714 2853 9708
      2853 9706 2850 9701

$$

87

The office that day

Everything else NWS Corpus Christi, TX issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Oct 3, 7:43 PM CDT	Flash Flood Warning	CRP	Bee, Goliad	107 min
Oct 3, 8:08 PM CDT	Severe Thunderstorm Warning	CRP	Bee, Jim Wells, Live Oak, San Patricio	67 min
Oct 3, 9:13 PM CDT	Severe Thunderstorm Warning	CRP	Bee, Refugio, San Patricio	62 min
Oct 3, 9:16 PM CDT	Areal Flood Advisory	CRP	San Patricio	59 min
Oct 3, 9:22 PM CDT	Areal Flood Advisory	CRP	Refugio	53 min
Oct 3, 10:05 PM CDT	Severe Thunderstorm Warning	CRP	Goliad	40 min
Oct 3, 10:23 PM CDT	Flash Flood Warning	CRP	Refugio	52 min
Oct 3, 11:03 PM CDT	Flash Flood Warning	CRP	Aransas	42 min
Oct 3, 11:58 PM CDT	Flash Flood Warning	CRP	Aransas	53 min
Oct 4, 12:25 AM CDT	Areal Flood Advisory	CRP	Calhoun	50 min
Oct 4, 1:00 AM CDT	Special Marine Warning	CRP		60 min
Oct 4, 6:17 AM CDT	Areal Flood Advisory	CRP	La Salle	58 min
Oct 4, 7:36 AM CDT	Areal Flood Advisory	CRP	La Salle, McMullen	54 min
Oct 4, 9:37 AM CDT	Areal Flood Advisory	CRP	Goliad, Victoria	53 min
Oct 4, 10:08 AM CDT	Flash Flood Warning	CRP	Aransas, Calhoun, Refugio, Victoria	69 min
Oct 4, 10:24 AM CDT	River Flood Warning	CRP	Refugio	25 hr
Oct 4, 11:56 AM CDT	River Flood Warning	CRP	Bee, Nueces, San Patricio	10 hr
Oct 4, 12:38 PM CDT	River Flood Warning	CRP	Calhoun, Victoria	4 days
Oct 4, 12:38 PM CDT	River Flood Warning	CRP	Calhoun, Victoria	7 days
Oct 4, 12:45 PM CDT	Special Marine Warning	CRP		46 min
Oct 4, 1:23 PM CDT	River Flood Warning	CRP	Calhoun, Goliad, Victoria	4 days
Oct 4, 3:41 PM CDT	Small Craft Advisory	CRP		4 hr

Nearby

Flash Flood Warnings in Texas, 2009 Every flash flood warning 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.