Alert archive / Texas / Winter Weather Advisories in 2011

Winter Weather Advisory 2, NWS Midland/Odessa, TX

February 1, 201111 counties in Texas; Eddy County, New Mexico

NWS Midland/Odessa, TX issued this winter weather advisory at Feb 1, 2011, 9:50 AM CST for 11 counties in Texas; Eddy County, New Mexico. It was in force for 2 hr.

The area

The counties it named.

The facts

Issued
Feb 1, 2011, 9:50 AM CST (15:50 UTC)
Expired
Feb 1, 2011, 12:00 PM CST
In force
2 hr
Issued by
NWS Midland/Odessa, TX

Counties Eddy County, NM, Andrews County, TX, Borden County, TX, Dawson County, TX, Ector County, TX, Gaines County, TX, Glasscock County, TX, Howard County, TX, Martin County, TX, Midland County, TX, Mitchell County, TX, Scurry County, TX

The radar

The Midland/Odessa radar (KMAF), 49 km from the middle of the area, began a volume at 15:53 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 12:00Z, 3.8 hours before the alert went out and 321 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, Amarillo Airport, TX at 12:00Z on 2011-02-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Amarillo Airport, TX at 12:00Z on 2011-02-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 18 square meters per square second.19395878Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
890 m above ground
0-6 km bulk shear
58 kt
0-1 km storm-relative helicity
18 m²/s²
0-3 km storm-relative helicity
240 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 winter weather advisory 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 winter weather advisory went out at Feb 1, 9:40 AM CST, 10 minutes earlier.

Area forecast discussion, Feb 1, 9:40 AM CST, 10 minutes before
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Hazardous weather outlook, Feb 1, 4:33 AM CST, 5 hours 17 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE MIDLAND/ODESSA TX
433 AM CST TUE FEB 1 2011

NMZ027>029-033-034-TXZ045>048-050>053-057>063-067>070-074-075-
079>082-258-021045-
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-
433 AM CST TUE FEB 1 2011 /333 AM MST TUE FEB 1 2011/

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

.DAY ONE...TODAY AND TONIGHT

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 9 AM THIS
MORNING FOR PORTIONS OF THE PERMIAN BASIN...WESTERN LOW ROLLING
PLAINS AND SOUTHEAST NEW MEXICO. ALTHOUGH MOST OF THE SIGNIFICANT
PRECIP HAS ENDED ACROSS THE REGION...VERY LIGHT FREEZING DRIZZLE
AND SUBFREEZING TEMPERATURES WILL CONTINUE TO RESULT IN SOME SLICK
ROADWAYS. THIS IS ESPECIALLY TRUE FOR ELEVATED SURFACE SUCH AS
BRIDGES AND OVERPASSES...AND FOR LOCATIONS THAT RECEIVED MORE
PRECIPITATION.

HIGH WINDS ARE AGAIN EXPECTED IN THE GUADALUPE MOUNTAINS OF
CULBERSON COUNTY TONIGHT. NORTHEASTERLY WINDS THROUGH GUADALUPE
PASS WILL INCREASE TO AROUND 35 TO 45 MPH WITH GUSTS TO 60 TO 65
MPH LATE TONIGHT THROUGH EARLY WEDNESDAY MORNING.

IN ADDITION...VERY COLD TEMPERATURES WILL COMBINE WITH BREEZY
NORTHERLY WINDS TO PRODUCE BITTERLY COLD WIND CHILL VALUES ACROSS
THE ENTIRE AREA. NEGATIVE TEENS AND SINGLE DIGITS ARE EXPECTED FOR
MOST LOCATIONS...WITH NEGATIVE 20S POSSIBLE IN THE MOUNTAINOUS
TERRAIN. A WIND CHILL ADVISORY REMAINS IN EFFECT FOR ALL OF
SOUTHEAST NEW MEXICO AND WEST TEXAS...WHILE A WIND CHILL WARNING
IS IN EFFECT FOR THE DAVIS AND GUADALUPE MOUNTAINS.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

SNOW WILL BE LIKELY IN THE GUADALUPE MOUNTAINS BEGINNING LATE
TUESDAY NIGHT THROUGH EARLY WEDNESDAY MORNING. TOTAL SNOWFALL
ACCUMULATION OF 4 TO 6 INCHES WILL BE POSSIBLE IN THE HIGHER
TERRAIN OF THE GUADALUPE MOUNTAINS. A WINTER STORM WATCH IS NOW
IN EFFECT FOR THIS AREA. SNOW WILL ALSO BE POSSIBLE ACROSS THE
DELAWARE MOUNTAINS AND PORTIONS OF THE DAVIS MOUNTAINS...WHERE
TOTAL ACCUMULATIONS SHOULD REMAIN BELOW 2 INCHES.

.SPOTTER INFORMATION STATEMENT...

ALTHOUGH SPOTTER ACTIVATION IS NOT ANTICIPATED...LOCAL INTEREST
SHOULD STAY ABREAST OF THE LATEST WEATHER INFORMATION...AND BE
PREPARED FOR BITTER COLD TUESDAY AND WEDNESDAY.

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

In the hours before

Special weather statement, Feb 1, 7:55 AM CST, 1 hour 55 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Feb 1, 4:54 AM CSTWinter Storm WatchMAF10 hr
Feb 1, 12:47 PM CSTWinter Weather AdvisoryMAFAndrews, Borden, Crane, Dawson, Ector, Gaines and 8 more108 min
Feb 1, 2:35 PM CSTWinter Weather AdvisoryMAF39 hr

Nearby

Winter Weather Advisories in Texas, 2011Winter Weather Advisories in New Mexico, 2011Every winter weather advisory in 2011

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.