Alert archive / Texas / Special Weather Statements in 2015

Special Weather Statement, NWS Amarillo, TX

August 9, 2015Hemphill County, Texas

NWS Amarillo, TX issued this special weather statement at Aug 9, 2015, 6:33 PM CDT for Hemphill County, Texas. It was in force for 57 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: Aug 9, 2015, 6:33 PM CDT (23:33 UTC)
Expired: Aug 9, 2015, 7:30 PM CDT
In force: 57 min
Issued by: NWS Amarillo, TX

County Hemphill County, TX

The radar

The Amarillo radar (KAMA), 165 km from the middle of the area, began a volume at 23:33 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

Dodge City, (KDDC), launched 12:00Z, 11.6 hours before the alert went out and 204 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: 18 J/kg
Mixed-layer CIN: -240 J/kg
Mixed-layer LCL: 2636 m above ground
0-6 km bulk shear: 28 kt
0-1 km storm-relative helicity: 53 m²/s²
0-3 km storm-relative helicity: 255 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Aug 9, 4:31 PM CDT, 2 hours 2 minutes earlier.

Area forecast discussion, Aug 9, 4:31 PM CDT, 2 hours 2 minutes before

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Hazardous weather outlook, Aug 9, 3:29 PM CDT, 3 hours 4 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE AMARILLO TX
329 PM CDT SUN AUG 9 2015

OKZ001>003-TXZ001>020-100830-
CIMARRON-TEXAS-BEAVER-DALLAM-SHERMAN-HANSFORD-OCHILTREE-LIPSCOMB-
HARTLEY-MOORE-HUTCHINSON-ROBERTS-HEMPHILL-OLDHAM-POTTER-CARSON-
GRAY-WHEELER-DEAF SMITH-RANDALL-ARMSTRONG-DONLEY-COLLINGSWORTH-
329 PM CDT SUN AUG 9 2015

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

.DAY ONE...TONIGHT.

THUNDERSTORMS ARE POSSIBLE ACROSS THE BETTER PART OF THE TEXAS AND
OKLAHOMA PANHANDLES THROUGH TONIGHT. SOME STRONG TO MARGINALLY SEVERE
THUNDERSTORMS ARE POSSIBLE WITH DAMAGING WIND GUSTS...SMALL
HAIL...AND VERY HEAVY RAINFALL BEING THE MAIN HAZARDS. THE HEAVY
RAINFALL COULD LEAD TO LOCALIZED FLOODING OR FLASH FLOODING.

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

THUNDERSTORMS ARE POSSIBLE ACROSS PARTS OF THE TEXAS AND OKLAHOMA
PANHANDLES WITH THE HIGHEST CHANCES DURING THE LATE AFTERNOON AND
OVERNIGHT HOURS EACH DAY THROUGH TUESDAY NIGHT. THUNDERSTORMS WILL
BE POSSIBLE MAINLY ACROSS THE NORTHERN AND EASTERN SECTIONS OF THE
PANHANDLES WEDNESDAY THROUGH THURSDAY. SOME STRONG THUNDERSTORMS WILL
PRODUCE GUSTY WINDS TO 50 MPH...SMALL HAIL AND VERY HEAVY RAINFALL
AND AN ISOLATED SEVERE IS ALSO POSSIBLE. THE HEAVY RAIN PRODUCED BY
THESE STORMS COULD 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 9, 5:31 PM CDT, 1 hour 2 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE AMARILLO TX
531 PM CDT SUN AUG 9 2015

TXZ005-010-092300-
HEMPHILL TX-LIPSCOMB TX-
531 PM CDT SUN AUG 9 2015

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN LIPSCOMB AND
NORTHEASTERN HEMPHILL COUNTIES UNTIL 600 PM CDT...

AT 530 PM CDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR
LAKE MARVIN...OR 13 MILES EAST OF CANADIAN...MOVING NORTHEAST AT 25
MPH.

HALF INCH HAIL AND WINDS IN EXCESS OF 40 MPH WILL BE POSSIBLE WITH
THIS STORM.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3577 10014 3602 10029 3614 10000 3581 10000
TIME...MOT...LOC 2230Z 233DEG 20KT 3595 10015

CE

Special weather statement, Aug 9, 5:54 PM CDT, 39 minutes before

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Special weather statement, Aug 9, 6:33 PM CDT, 0 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE AMARILLO TX
633 PM CDT SUN AUG 9 2015

TXZ005-010-100030-
HEMPHILL TX-LIPSCOMB TX-
633 PM CDT SUN AUG 9 2015

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN LIPSCOMB AND
NORTHEASTERN HEMPHILL COUNTIES UNTIL 730 PM CDT...

AT 633 PM CDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM OVER
LAKE MARVIN...OR 11 MILES EAST OF CANADIAN...MOVING NORTHEAST AT 15
MPH.

HALF INCH HAIL AND WINDS IN EXCESS OF 40 MPH WILL BE POSSIBLE WITH
THIS STORM.

LAT...LON 3576 10016 3599 10030 3618 10001 3617 10000
      3581 10000
TIME...MOT...LOC 2333Z 234DEG 12KT 3592 10017

CE

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 8, 7:06 PM CDT	Special Weather Statement	AMA	Deaf Smith	39 min
Aug 8, 7:33 PM CDT	Severe Thunderstorm Warning	AMA	Deaf Smith	43 min
Aug 8, 8:38 PM CDT	Special Weather Statement	AMA	Dallam	52 min
Aug 8, 9:23 PM CDT	Severe Thunderstorm Warning	AMA	Dallam, Sherman	52 min
Aug 8, 10:10 PM CDT	Special Weather Statement	AMA	Sherman	50 min
Aug 8, 11:44 PM CDT	Special Weather Statement	AMA	Hansford	46 min
Aug 9, 2:01 AM CDT	Flash Flood Warning	AMA	Potter, Randall	3 hr
Aug 9, 5:31 PM CDT	Special Weather Statement	AMA	Hemphill	29 min
Aug 9, 5:54 PM CDT	Special Weather Statement	AMA	Armstrong	51 min
Aug 8, 10:59 PM CDT	Special Weather Statement	AMA	Texas	46 min

Nearby

Special Weather Statements in Texas, 2015 Every special weather statement in 2015

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.