Alert archive / Texas / Flash Flood Warnings in 2016

Flash Flood Warning 2, NWS Amarillo, TX

May 11, 2016Hutchinson County, Texas

NWS Amarillo, TX issued this flash flood warning at May 11, 2016, 10:20 PM CDT for Hutchinson County, Texas. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: May 11, 2016, 10:20 PM CDT (03:20 UTC)
Expired: May 12, 2016, 1:15 AM CDT
In force: 3 hr
Issued by: NWS Amarillo, TX
Area: Storm-based polygon
Flood severity: None

County Hutchinson County, TX

The radar

The Amarillo radar (KAMA), 65 km from the middle of the area, began a volume at 03:19 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

Amarillo Airport, TX (KAMA), launched 00:00Z, 3.3 hours before the alert went out and 64 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: -141 J/kg
Mixed-layer LCL: 1912 m above ground
0-6 km bulk shear: 56 kt
0-1 km storm-relative helicity: 52 m²/s²
0-3 km storm-relative helicity: 207 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

The text

As transmitted.

457 
WGUS54 KAMA 120320
FFWAMA
TXC233-120615-
/O.NEW.KAMA.FF.W.0002.160512T0320Z-160512T0615Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE AMARILLO TX
1020 PM CDT WED MAY 11 2016

THE NATIONAL WEATHER SERVICE IN AMARILLO HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTHEASTERN HUTCHINSON COUNTY IN THE PANHANDLE OF TEXAS...

* UNTIL 115 AM CDT

* AT 1019 PM CDT...LOCAL LAW ENFORCEMENT OFFICIALS REPORTED
  THUNDERSTORMS PRODUCING HEAVY RAIN ACROSS THE WARNED AREA. FLASH
  FLOODING HAS BEEN REPORTED ON THE NORTHWEST SIDE OF BORGER

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE... BORGER.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOVE TO HIGHER GROUND NOW. ACT QUICKLY TO PROTECT YOUR LIFE.

&&

LAT...LON 3577 10148 3584 10109 3563 10109 3563 10154

$$

LG

1 follow-up statement

898 
WGUS74 KAMA 120435
FFSAMA

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE AMARILLO TX
1135 PM CDT WED MAY 11 2016

TXC233-120615-
/O.CON.KAMA.FF.W.0002.000000T0000Z-160512T0615Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
HUTCHINSON TX-
1135 PM CDT WED MAY 11 2016

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 115 AM CDT FOR
SOUTHEASTERN HUTCHINSON COUNTY...

AT 1133 PM CDT...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING
HEAVY RAIN ACROSS THE WARNED AREA. ONE TO TWO INCHES OF RAIN HAVE
ALREADY FALLEN. FLOODING HAS BEEN REPORTED ON THE NORTH SIDE OF
BORGER.

SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
BORGER.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING.

&&

LAT...LON 3577 10148 3584 10109 3563 10109 3563 10154

$$

LG

The office that day

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

Issued	Product	Office	Counties	Lasted
May 11, 8:04 PM CDT	Special Weather Statement	AMA	Moore	26 min
May 11, 8:11 PM CDT	Special Weather Statement	AMA	Hartley	34 min
May 11, 8:16 PM CDT	Severe Thunderstorm Warning	AMA	Hartley, Moore, Potter	44 min
May 11, 8:44 PM CDT	Special Weather Statement	AMA	Hartley, Oldham	31 min
May 11, 8:59 PM CDT	Severe Thunderstorm Warning	AMA	Carson, Hutchinson, Moore, Potter	46 min
May 11, 9:14 PM CDT	Special Weather Statement	AMA	Oldham, Potter	61 min
May 11, 9:22 PM CDT	Special Weather Statement	AMA	Hutchinson	53 min
May 11, 9:33 PM CDT	Severe Thunderstorm Warning	AMA	Carson, Gray, Hutchinson, Roberts	57 min
May 11, 9:40 PM CDT	Severe Thunderstorm Warning	AMA	Carson, Donley, Gray	65 min
May 11, 9:46 PM CDT	Severe Thunderstorm Warning	AMA	Armstrong, Carson, Oldham, Potter, Randall	59 min
May 11, 10:08 PM CDT	Severe Thunderstorm Warning	AMA	Carson, Donley, Gray, Hutchinson, Roberts	67 min
May 11, 10:35 PM CDT	Severe Thunderstorm Warning	AMA	Armstrong, Carson, Donley, Gray, Potter	40 min
May 11, 11:06 PM CDT	Special Weather Statement	AMA	Collingsworth	39 min
May 11, 11:09 PM CDT	Severe Thunderstorm Warning	AMA	Armstrong, Donley	51 min
May 11, 11:42 PM CDT	Severe Thunderstorm Warning	AMA	Collingsworth, Donley	48 min
May 12, 12:43 AM CDT	Special Weather Statement	AMA	Hartley	62 min
May 12, 1:37 AM CDT	Special Weather Statement	AMA	Oldham	68 min

Nearby

Flash Flood Warnings in Texas, 2016 Every flash flood 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.