Alert archive / Texas / Special Weather Statements in 2015

Special Weather Statement, NWS Midland/Odessa, TX

August 19, 2015Brewster County, Texas

NWS Midland/Odessa, TX issued this special weather statement at Aug 19, 2015, 7:21 PM CDT for Brewster County, Texas. It was in force for 39 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 19, 2015, 7:21 PM CDT (00:21 UTC)
Expired
Aug 19, 2015, 8:00 PM CDT
In force
39 min
Issued by
NWS Midland/Odessa, TX

County Brewster County, TX

The radar

The Midland/Odessa radar (KMAF), 205 km from the middle of the area, began a volume at 00:23 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

Midland Regional, TX (KMAF), launched 00:00Z, 0.4 hours before the alert went out and 206 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-pSkew-T log-p diagram, Midland Regional, TX at 00:00Z on 2015-08-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 15 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Midland Regional, TX at 00:00Z on 2015-08-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 151 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
15 J/kg
Mixed-layer CIN
-621 J/kg
Mixed-layer LCL
1136 m above ground
0-6 km bulk shear
16 kt
0-1 km storm-relative helicity
151 m²/s²
0-3 km storm-relative helicity
428 m²/s²
Significant tornado parameter
0.0
Supercell composite
7.0

Open this sounding in Storm Lab

The text

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

851 
WWUS84 KMAF 200021
SPSMAF

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MIDLAND/ODESSA TX
721 PM CDT WED AUG 19 2015
 
TXZ081-200100-
BIG BEND AREA TX-
721 PM CDT WED AUG 19 2015

...SIGNIFICANT WEATHER ADVISORY FOR NORTH CENTRAL BREWSTER COUNTY
UNTIL 800 PM CDT...

AT 720 PM CDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 16
MILES EAST OF MARATHON...MOVING SOUTH AT 5 MPH. THIS STORM MAY CROSS
U.S. HWY 90.

HALF INCH HAIL AND WIND GUSTS OF 50 TO 55 MPH WILL BE POSSIBLE WITH
THIS STORM.

THIS STORM WILL REMAIN OVER MAINLY RURAL AREAS OF NORTH CENTRAL
BREWSTER COUNTY.

LAT...LON 3034 10298 3021 10284 3003 10299 3024 10319
TIME...MOT...LOC 0020Z 351DEG 6KT 3023 10297 

$$

The office that day

Everything else NWS Midland/Odessa, TX issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 19, 7:02 PM CDTSpecial Weather StatementMAFBrewster43 min
Aug 19, 7:18 PM CDTSpecial Weather StatementMAF42 min
Aug 19, 7:30 PM CDTSpecial Weather StatementMAF45 min
Aug 20, 3:27 PM CDTSpecial Weather StatementMAFJeff Davis63 min
Aug 20, 3:57 PM CDTSpecial Weather StatementMAFPresidio63 min
Aug 20, 4:39 PM CDTSpecial Weather StatementMAF51 min
Aug 20, 5:31 PM CDTSpecial Weather StatementMAFBrewster44 min
Aug 20, 5:32 PM CDTSevere Thunderstorm WarningMAFBrewster29 min

Nearby

Special Weather Statements in Texas, 2015Every 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.