Alert archive / Texas / Flood Watches in 2016

Flood Watch 3, NWS Amarillo, TX

August 29, 201612 counties in Texas; Beaver County, Texas County, Oklahoma

NWS Amarillo, TX issued this flood watch at Aug 29, 2016, 3:58 AM CDT for 12 counties in Texas; Beaver County, Texas County, Oklahoma. It took effect at Aug 29, 2016, 1:00 PM CDT. It was in force for 3 days.

The area

The counties it named.

The facts

Issued: Aug 29, 2016, 3:58 AM CDT (08:58 UTC)
In effect from: Aug 29, 2016, 1:00 PM CDT
Expired: Sep 1, 2016, 3:23 PM CDT
In force: 3 days
Issued by: NWS Amarillo, TX
Flood severity: None

Counties Beaver County, OK, Texas County, OK, Armstrong County, TX, Carson County, TX, Collingsworth County, TX, Donley County, TX, Gray County, TX, Hansford County, TX, Hemphill County, TX, Hutchinson County, TX, Lipscomb County, TX, Ochiltree County, TX, Roberts County, TX, Wheeler County, TX

The radar

The Amarillo radar (KAMA), 100 km from the middle of the area, began a volume at 08:59 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, 9.0 hours before the alert went out and 99 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: 1548 J/kg
Mixed-layer CIN: -16 J/kg
Mixed-layer LCL: 1178 m above ground
0-6 km bulk shear: 22 kt
0-1 km storm-relative helicity: -2 m²/s²
0-3 km storm-relative helicity: 79 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 flood watch went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Amarillo, TX wrote its last area forecast discussion before this flood watch went out at Aug 29, 1:04 AM CDT, 2 hours 54 minutes earlier.

Area forecast discussion, Aug 29, 1:04 AM CDT, 2 hours 54 minutes before

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Hazardous weather outlook, Aug 28, 3:05 PM CDT, 12 hours 53 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE AMARILLO TX
305 PM CDT SUN AUG 28 2016

OKZ001>003-TXZ001>020-290815-
CIMARRON-TEXAS-BEAVER-DALLAM-SHERMAN-HANSFORD-OCHILTREE-LIPSCOMB-
HARTLEY-MOORE-HUTCHINSON-ROBERTS-HEMPHILL-OLDHAM-POTTER-CARSON-
GRAY-WHEELER-DEAF SMITH-RANDALL-ARMSTRONG-DONLEY-COLLINGSWORTH-
305 PM CDT SUN AUG 28 2016

THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE TEXAS AND OKLAHOMA
PANHANDLES.

.DAY ONE...TONIGHT.

THUNDERSTORMS WILL CONTINUE ACROSS THE PANHANDLES THROUGH TONIGHT.
STORMS ARE EXPECTED TO REMAIN BELOW SEVERE LEVELS. HOWEVER...THE
STRONGEST STORMS WILL BE CAPABLE OF PRODUCING HEAVY RAINFALL...WHICH
MAY LEAD TO FLOODING OR FLASH FLOODING.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.

THUNDERSTORMS WILL BE POSSIBLE ACROSS THE OKLAHOMA AND TEXAS
PANHANDLES THROUGH SATURDAY. ANY STORMS THAT DEVELOP ARE EXPECTED TO
REMAIN BELOW SEVERE LEVELS AT THIS TIME. HOWEVER...THE STRONGEST
STORMS WILL BE CAPABLE OF PRODUCING HEAVY RAINFALL...WHICH MAY LEAD
TO FLOODING OR FLASH FLOODING.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT ANTICIPATED AT THIS TIME.

In the hours before

Special weather statement, Aug 28, 10:30 PM CDT, 5 hours 28 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE AMARILLO TX
1030 PM CDT SUN AUG 28 2016

TXZ015-019-020-290430-
DONLEY TX-WHEELER TX-COLLINGSWORTH TX-
1030 PM CDT SUN AUG 28 2016

...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL COLLINGSWORTH...
SOUTHWESTERN WHEELER AND NORTHEASTERN DONLEY COUNTIES UNTIL 1130 PM
CDT...

AT 1030 PM CDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 5
MILES NORTH OF WELLINGTON...MOVING NORTHWEST AT 20 MPH.

WIND GUSTS UP TO 50 MPH WILL BE POSSIBLE WITH THIS STORM.

LOCATIONS IMPACTED INCLUDE...
WELLINGTON...LELA...LUTIE...DOZIER AND SAMNORWOOD.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE SHELTER IN A STURDY BUILDING IF THREATENING WEATHER APPROACHES.

TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY LEAD
TO LOCALIZED FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.

&&

LAT...LON 3481 10024 3513 10063 3518 10055 3518 10054
      3519 10054 3530 10038 3493 10007
TIME...MOT...LOC 0330Z 140DEG 17KT 3493 10022

SCHNEIDER

Local storm report, Aug 28, 10:32 PM CDT, 5 hours 26 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AMARILLO TX
1032 PM CDT SUN AUG 28 2016

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0405 PM     TSTM WND GST     1 ENE MCLEAN            35.24N 100.57W
08/28/2016  M58 MPH          GRAY               TX   MESONET

&&

EVENT NUMBER AMA1600669

KJS

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 28, 7:16 PM CDT	Special Weather Statement	AMA	Hutchinson	59 min
Aug 28, 7:58 PM CDT	Areal Flood Advisory	AMA	Hansford, Hutchinson, Ochiltree, Roberts	3 hr
Aug 28, 8:28 PM CDT	Special Weather Statement	AMA	Hutchinson	62 min
Aug 28, 10:30 PM CDT	Special Weather Statement	AMA	Collingsworth	60 min
Aug 28, 10:53 PM CDT	Areal Flood Advisory	AMA	Carson, Gray, Hemphill, Roberts, Wheeler	3 hr
Aug 29, 12:41 AM CDT	Flash Flood Warning	AMA	Gray, Wheeler	3 hr
Aug 29, 2:49 PM CDT	Areal Flood Advisory	AMA	Carson, Hutchinson, Moore, Potter	3 hr
Aug 29, 4:12 PM CDT	Areal Flood Advisory	AMA	Lipscomb, Ochiltree	4 hr

Nearby

Flood Watches in Texas, 2016 Flood Watches in Oklahoma, 2016 Every flood watch 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.