Alert archive / Texas / Special Weather Statements in 2013

Special Weather Statement, NWS Midland/Odessa, TX

August 10, 2013Upton County, Texas

NWS Midland/Odessa, TX issued this special weather statement at Aug 10, 2013, 2:19 AM CDT for Upton County, Texas. It was in force for 26 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 10, 2013, 2:19 AM CDT (07:19 UTC)
Expired
Aug 10, 2013, 2:45 AM CDT
In force
26 min
Issued by
NWS Midland/Odessa, TX

County Upton County, TX

The radar

The Midland/Odessa radar (KMAF), 52 km from the middle of the area, began a volume at 07:20 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, 7.3 hours before the alert went out and 53 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 2013-08-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 191 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 2013-08-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -25 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
191 J/kg
Mixed-layer CIN
-150 J/kg
Mixed-layer LCL
2454 m above ground
0-6 km bulk shear
23 kt
0-1 km storm-relative helicity
-25 m²/s²
0-3 km storm-relative helicity
49 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 Midland/Odessa, TX wrote its last area forecast discussion before this special weather statement went out at Aug 9, 2:42 PM CDT, 11 hours 37 minutes earlier.

Area forecast discussion, Aug 9, 2:42 PM CDT, 11 hours 37 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MIDLAND/ODESSA TX
242 PM CDT FRI AUG 9 2013

.DISCUSSION...
A weak cold front that moved into the region this morning has
stalled near a Van Horn, Fort Stockton, Snyder line this afternoon.
Showers and thunderstorms had developed over the Davis Mountains
early this afternoon and this is expected to persist through the
rest of the afternoon. May still see some development near the
front in the Permian Basin and lower Trans Pecos region, where a mid
level theta e ridge resides. A developing CU field can be seen over
this area. PWATs ranging from 1.2-1.5 inches may result in areas of
localized heavy rainfall. Temperatures have been slow to warm and
may not reach the previously forecasted high. Will go ahead and
leave highs where they are just in case daytime heating catches up.

The boundary is expected to hang around Saturday although surface
convergence does not look impressive. Under weak ridging aloft,
daytime heating should be enough to warrant at least a slight chance
of showers and thunderstorms developing near the boundary during the
afternoon. Models also suggest some convection possibly moving south
from central and eastern NM during the late evening hours. Steering
flow will be very weak so confidence remains low. Kept the best
chances across southeast NM and the Permian Basin. The latest GFS
washes the front out by Saturday night, returning SE winds areawide
Sunday. The upper ridge may have a little more influence over the
area Sunday so went ahead and decreased POPs to slight chance,
confining them to southeast NM and northwest PB. Will continue
mention of locally heavy rain through the weekend as PWATs remain
high and steering flow weak. Temperatures should remain near normal
readings through the weekend.

Monday, the upper ridge will begin to retrograde westward and become
centered over southern AZ/NM by mid week. This will put the region
under NW flow aloft which may result in slightly cooler temperatures
areawide and increased rain chances to at least the northeast zones.
The 12Z GFS has come in a bit cooler in the extended but will hold
off on making any drastic changes to the forecast package.

&&

.PRELIMINARY POINT TEMPS/POPS...
ANDREWS TX                 70  94  71  94  /  20  20  20  10
BIG SPRING TX              71  96  74  96  /  20  20  20  10
CARLSBAD NM                71  93  69  93  /  30  20  20  20
DRYDEN TX                  74  99  76  99  /  10  10  10  10
FORT STOCKTON TX           72  96  72  95  /  20  10  10  10
GUADALUPE PASS TX          67  87  66  87  /  20  20  20  10
HOBBS NM                   68  89  67  90  /  30  20  20  20
MARFA TX                   59  86  62  86  /  20  10  10  10
MIDLAND INTL AIRPORT TX    71  96  73  95  /  20  20  20  10
ODESSA TX                  72  95  73  94  /  20  20  20  10
WINK TX                    72  97  74  97  /  20  20  20  10

&&

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

&&

44/27
Hazardous weather outlook, Aug 9, 2:08 PM CDT, 12 hours 11 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE MIDLAND/ODESSA TX
208 PM CDT FRI AUG 9 2013

NMZ027>029-033-034-TXZ045>048-050>053-057>063-067>070-074-075-
079>082-258-101915-
GUADALUPE MOUNTAINS OF EDDY COUNTY-EDDY COUNTY PLAINS-
NORTHERN LEA COUNTY-CENTRAL LEA COUNTY-SOUTHERN LEA COUNTY-GAINES-
DAWSON-BORDEN-SCURRY-ANDREWS-MARTIN-HOWARD-MITCHELL-
VAN HORN AND HIGHWAY 54 CORRIDOR-REEVES COUNTY AND UPPER TRANS PECOS-
LOVING-WINKLER-ECTOR-MIDLAND-GLASSCOCK-WARD-CRANE-UPTON-REAGAN-
DAVIS/APACHE MOUNTAINS AREA-PECOS-PRESIDIO VALLEY-MARFA PLATEAU-
BIG BEND AREA-TERRELL-GUADALUPE MOUNTAINS-
208 PM CDT FRI AUG 9 2013 /108 PM MDT FRI AUG 9 2013/

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHEAST NEW
MEXICO...SOUTHWEST TEXAS AND WEST TEXAS.

.DAY ONE...THIS AFTERNOON AND TONIGHT

THERE IS A CHANCE OF THUNDERSTORMS THIS AFTERNOON AND TONIGHT...MAINLY
OVER SOUTHEAST NEW MEXICO.  ANY STORMS THAT DO DEVELOP WILL BE CAPABLE
OF PRODUCING FREQUENT LIGHTNING...LOCALLY HEAVY RAINFALL...AND WIND
GUSTS IN EXCESS OF 50 MPH.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

THUNDERSTORM CHANCES CONTINUE SATURDAY AND SUNDAY...MAINLY OVER
SOUTHEAST NEW MEXICO.  ANY STORMS THAT DO DEVELOP WILL BE CAPABLE
OF PRODUCING FREQUENT LIGHTNING...LOCALLY HEAVY RAINFALL...AND
WIND GUSTS IN EXCESS OF 50 MPH.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT ANTICIPATED.

THIS PRODUCT...ALONG WITH OTHER WATCHES...WARNINGS...ADVISORIES...
AND STATEMENTS ISSUED BY THE NATIONAL WEATHER SERVICE OFFICE IN
MIDLAND CAN BE FOUND ON THE INTERNET AT /LOWER CASE/
HTTP://WEATHER.GOV/MIDLAND

44

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 9, 9:15 PM CDTSpecial Weather StatementMAFLoving30 min
Aug 10, 1:45 AM CDTSpecial Weather StatementMAFUpton30 min
Aug 10, 9:50 AM CDTRiver Flood WarningMAFPresidio21 hr
Aug 9, 9:50 PM CDTAreal Flood AdvisoryMAFLea3 hr

Nearby

Special Weather Statements in Texas, 2013Every special weather statement in 2013

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.