Alert archive / Texas / Special Weather Statements in 2015

Special Weather Statement, NWS Midland/Odessa, TX

August 23, 2015Reeves County, Texas

NWS Midland/Odessa, TX issued this special weather statement at Aug 23, 2015, 5:13 PM CDT for Reeves County, Texas. It was in force for 62 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 23, 2015, 5:13 PM CDT (22:13 UTC)
Expired
Aug 23, 2015, 6:15 PM CDT
In force
62 min
Issued by
NWS Midland/Odessa, TX

County Reeves County, TX

The radar

The Midland/Odessa radar (KMAF), 150 km from the middle of the area, began a volume at 22:17 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 12:00Z, 10.2 hours before the alert went out and 150 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 12:00Z on 2015-08-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 584 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 12:00Z on 2015-08-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 31 square meters per square second.1939Sfc1 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
584 J/kg
Mixed-layer CIN
-269 J/kg
Mixed-layer LCL
1854 m above ground
0-6 km bulk shear
8 kt
0-1 km storm-relative helicity
31 m²/s²
0-3 km storm-relative helicity
149 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.3

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 Midland/Odessa, TX wrote its last area forecast discussion before this special weather statement went out at Aug 23, 2:40 PM CDT, 2 hours 33 minutes earlier.

Area forecast discussion, Aug 23, 2:40 PM CDT, 2 hours 33 minutes before
Area Forecast Discussion
National Weather Service Midland/Odessa TX
240 PM CDT SUN AUG 23 2015

.DISCUSSION...
Current observations show the cold front is right about where it
was expected to be at this time, right along the I-20 corridor to
Pecos, then extending northwest along the Pecos River valley into
southeast New Mexico. A broken line of convection is now developng
along the front from Colorado City to Odessa. The fine resolution
models are showing this convection, along with storms developing
in the Davis and Guadalupe Mountains, increasing in coverage and
providing decent rainfall amounts across the area through midnight
tonight before diminishing. The more course resolution models
(40km and greater) do not show as much coverage or precipitation
amounts which provided some uncertainty in this forecast package.
Obs show a local maximum of dewpoints along the front better
depicted by the more unstable hi-res models so hopefully we will
continue to see an expansion in precip coverage. The main factor
potentially limiting convection will be the increase in cloud
cover decreasing insolation and counteracting the destabilizing
effects of the surface moisture.

Storms will diminish later tonight but more will develop tomorrow
afternoon along the remnants of the lifting front. Convection will
be much more isolated due to less wind and moisture convergence.
The remainder of the forecast appears to be a return of what we
are very familiar with, an upper level high building over New
Mexico and west Texas. Temperatures will steadily climb through
the week to well above normal levels and rain chances will greatly
diminish.

Hennig

&&

.PRELIMINARY POINT TEMPS/POPS...
BIG SPRING TX                  70  91  72  96  /  30  20  10  20
CARLSBAD NM                    67  91  68  93  /  30  20  10  10
DRYDEN TX                      74  97  73  96  /  10  20   0  10
FORT STOCKTON TX               70  94  70  94  /  20  20  10  10
GUADALUPE PASS TX              64  85  67  84  /  30  20  10  10
HOBBS NM                       65  87  67  92  /  30  20  10  10
MARFA TX                       62  87  61  86  /  30  10  10   0
MIDLAND INTL AIRPORT TX        69  92  70  95  /  30  20  10  10
ODESSA TX                      69  91  71  95  /  30  20  10  10
WINK TX                        70  95  71  96  /  30  20  10  10

&&

.MAF WATCHES/WARNINGS/ADVISORIES...
NM...NONE.
TX...NONE.

&&

70/10
Hazardous weather outlook, Aug 23, 3:22 PM CDT, 1 hour 51 minutes before
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In the hours before

Local storm report, Aug 23, 3:25 PM CDT, 1 hour 48 minutes before
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Special weather statement, Aug 23, 3:31 PM CDT, 1 hour 42 minutes before
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Special weather statement, Aug 23, 3:33 PM CDT, 1 hour 40 minutes before
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Special weather statement, Aug 23, 3:52 PM CDT, 1 hour 21 minutes before
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Special weather statement, Aug 23, 3:57 PM CDT, 1 hour 16 minutes before
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Special weather statement, Aug 23, 5:13 PM CDT, 0 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Aug 23, 3:03 PM CDTAreal Flood AdvisoryMAFEctor3 hr
Aug 23, 3:05 PM CDTSpecial Weather StatementMAFEctor25 min
Aug 23, 3:07 PM CDTSpecial Weather StatementMAFScurry53 min
Aug 23, 3:09 PM CDTSevere Thunderstorm WarningMAFAndrews, Ector, Winkler26 min
Aug 23, 3:31 PM CDTSpecial Weather StatementMAFAndrews44 min
Aug 23, 3:33 PM CDTSpecial Weather StatementMAFLoving42 min
Aug 23, 3:52 PM CDTSpecial Weather StatementMAFBrewster38 min
Aug 23, 3:53 PM CDTAreal Flood AdvisoryMAFPecos, Reeves3 hr
Aug 23, 3:57 PM CDTSpecial Weather StatementMAFAndrews48 min
Aug 23, 4:03 PM CDTAreal Flood AdvisoryMAFMartin, Midland3 hr
Aug 23, 4:33 PM CDTAreal Flood AdvisoryMAFAndrews3 hr
Aug 23, 5:18 PM CDTSpecial Weather StatementMAFDawson42 min
Aug 23, 5:32 PM CDTAreal Flood AdvisoryMAFLoving, Reeves, Ward, Winkler3 hr
Aug 23, 6:33 PM CDTAreal Flood AdvisoryMAFAndrews, Ector, Martin, Midland3 hr

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.