NWS Midland/Odessa, TX wrote its last area forecast discussion before the first event at Apr 19, 12:03 PM CST, 2 hours 23 minutes earlier. Its key messages:
Area forecast discussion, Apr 19, 12:03 PM CST, 2 hours 23 minutes before
Area Forecast Discussion...UPDATED
National Weather Service Midland/Odessa TX
103 PM CDT Sat Apr 19 2025
...New UPDATE, AVIATION...
.KEY MESSAGES...
Updated at 1243 PM CDT Sat Apr 19 2025
- A Red Flag Warning is in effect from noon CDT /11 AM MDT/ today
to 10 PM CDT /9 PM MDT/ this evening for Southeast New Mexico
and most of West Texas.
- A High Wind Warning is in effect from 4 PM CDT /3 PM MDT/ this
afternoon to midnight CDT /11 PM MDT/ this evening for the
Guadalupe and Delaware Mountains. A Wind Advisory is in effect
from 4 PM CDT /3 PM MDT/ this afternoon to midnight CDT /11 PM
MDT/ this evening for the Davis and Chinati Mountains, Davis
Mountain Foothills, Marfa Plateau, and Culberson and Eddy County
Plains.
- Severe thunderstorms are possible this afternoon and evening,
mainly across the Permian Basin, Western Low Rolling Plains,
Stockton Plateau, and lower Trans Pecos. The main threats will
be large hail and damaging winds, but an isolated tornado can't
be ruled out.
&&
.UPDATE...
Issued at 1243 PM CDT Sat Apr 19 2025
A cold front extends across much of southeast New Mexico and into
the Upper Trans Pecos and Permian Basin early this afternoon.
Temperatures are much cooler behind this feature with readings in
the 50s and 60s along northeasterly surface winds. We have updated
the forecast to lower the high temperature forecast behind the
front this afternoon.
We are still looking at the potential for severe storms to develop
across portions of the Permian Basin and Lower Trans Pecos region
later this afternoon and especially going into this evening as
forcing arrives into the region ahead of an approaching mid-level
low and associated potent shortwave trough. The greatest potential
for severe weather looks to be focused over the central and
eastern Permian Basin and into the adjacent Lower Trans Pecos
region. Large hail and damaging winds will be the primary hazards
of concern, but there will also be a tornado and locally heavy
rainfall threat over these areas. We will have more details in the
upcoming afternoon discussion.
&&
.SHORT TERM...
(Today through Sunday afternoon)
Issued at 245 AM CDT Sat Apr 19 2025
Most thunderstorm activity has stayed east of our area, though virga
resulted in some potent downburst winds yesterday evening and within
the past couple of hours. Winds (and lingering dust) will continue
to diminish over the next couple of hours, though lows this morning
will stay fairly warm under cloudy skies. Nevertheless, gusty winds
will return this afternoon as the much-discussed upper-level system
finally begins to move into our area. It looks like the
strongest/gustiest winds will occur in the mountains and in the
surrounding plains, as these areas will be more aligned with the jet
streak associated with this system. A Wind Advisory has been issued
for these locations (along with a High Wind Warning for the
Guadalupes) from this evening until just after midnight. Blowing
dust may once again develop in conjunction with these winds, though
will hold off on a advisory for now since gusts should be a bit
lighter than yesterday. Meanwhile, a dryline still looks to sharpen
up over the Central Permian Basin and Lower Trans-Pecos this
afternoon, and a triple point will likewise develop over roughly
this same area. These features will lead to the development of
thunderstorms by the evening. The environment over the
Central/Eastern Permian Basin and Lower Trans-Pecos will favor these
storms becoming severe. 0-6 km bulk shear up to 60-70 knots, MUCAPE
of 1000-1500 J/kg (up to 2000 J/kg for southeasternmost counties),
and 700-500 mb lapse rates of 7-9 C/km will allow for the
development of large hail and damaging winds for these locations.
Though these will be the primary threats, favorably curved
hodographs within the warm sector (south of the approaching front)
and 0-1 km SRH values up to 150-300 m2/s2 may allow for a tornado or
two to occur. Right now, it looks like the best chance of a spin-up
would be in the Lower Trans-Pecos, though this also depends on where
exactly the triple point sets up this afternoon and how far south
the front is when storms become established (storms undercut by the
front would be more apt to become elevated, and thus favor a large
hail threat and a much lower wind/tornado threat).
In any case, after midnight storms move off to the east of our area
and the cold front pushes through the rest of the region. Behind it
will come calmer winds, clearer skies, and more seasonable
temperatures (highs in the 70s and low 80s) for Easter Sunday!
Meanwhile highs today will generally be in 70s for northernmost
locations (north of where the triple point is expected to set up)
and in the mountains, with highs in the 80s for the rest of the area.
Sprang
&&
.LONG TERM...
(Sunday night through Friday)
Issued at 245 AM CDT Sat Apr 19 2025
Monday, West Texas and Southeast New Mexico will be under dry, zonal
flow aloft, which will begin transitioning to zonal during the
afternoon as troughing develops out in the Pacific. Thicknesses
will continue increasing under sunny skies, pushing afternoon
temperatures to around 3-4 F above normal. Under this pattern,
similar highs can be expected through the rest of the extended.
Of a more significant note in the extended is the redevelopment of
the LLJ. Monday night, models are still on track to develop a 40+kt
LLJ, advecting rich Gulf moisture up the Pecos River Valley. By 12Z
Tuesday, the 50 degree isodrosotherm could be as far west as
Presidio, with 60+ dewpoints in the lower Trans Pecos. By Tuesday
morning, the dryline is forecast to be backed up to our western
border, after which it will begin mixing east. Convection is
forecast to develop along and east of this feature during the
afternoon and overnight. A similar LLJ is forecast to redevelop
Tuesday night, and this may keep the convection going into the
overnight hours. Wednesday, southwest flow aloft continues as the
Pacific trough makes landfall on the west coast. Virtually the same
process--LLJ, dryline, convection--plays out Wednesday as on
Tuesday.
Thursday, the Pacific trough moves through West Texas and Southeast
New Mexico, and convection will be possible once again. Although
severe convection cannot be ruled out Tuesday and Wednesday, deep-
layer bulk shear will be stronger Thursday w/the arrival of the
trough.
Friday, a weak front will drop in in the wake of the exiting trough,
but will only shave a degree or two off highs. Convection will be
possible Friday afternoon.
&&
.AVIATION...
(18Z TAFS)
Issued at 1243 PM CDT Sat Apr 19 2025
A cold front will generally extend from the southeast New Mexico
Plains to the Upper Trans Pecos and Permian Basin region this
afternoon. Northerly to northeasterly surface winds should persist
behind this boundary through the early to mid afternoon hours
though there is still some potential for winds to veer southerly
to southwesterly at KINK, KPEQ, KFST, and possibly KCNM later this
afternoon as a surface low and associated trough axis develops
across western portions of our forecast area. Patchy BLDU may
accompany stronger southwesterly winds that develop. A reinforcing
cold front will advance across the forecast area this evening,
with winds picking up from the W/NW up to 20-25 knots with higher
gusts following frontal passage. Thunderstorms will likely
develop over portions of the Permian Basin and adjacent Lower
Trans Pecos region this evening. Some storms could be severe,
including near and east of KMAF and KFST, especially after 02Z
when a forced line of storms looks to develop along the advancing
front. Expect potential for erratic/high winds, hail, and reduced
visibility due to heavy rainfall near the strongest storms that
develop.
&&
.FIRE WEATHER...
Issued at 245 AM CDT Sat Apr 19 2025
Today, with the trough still to the west, critical relative
humidity, for the most part single-digit, will extend from Southeast
New Mexico to the Presidio Valley and beyond. 20-ft winds will
remain elevated along and west of the Pecos. These will combine to
yield widespread RFTI of 4+ most areas along and west of the
Pecos, with a large area of 7+. Given ERCs of 50th percentile or
better, we'll upgrade the watch to a warning.
Sunday, the trough passes to the east, taking increased 20-ft winds
with it. Convection is anticipated w/the trough, and much fire wx
after today will depend on how much of what falls where between now
and then. Attm, it looks like elevated fire wx conditions will be
possible each day out west of the dryline, as would be expected.
Stay tuned.
&&
.PRELIMINARY POINT TEMPS/POPS...
Big Spring 75 48 75 49 / 20 80 0 0
Carlsbad 76 43 77 46 / 10 10 0 0
Dryden 89 54 86 53 / 10 40 0 0
Fort Stockton 89 50 78 52 / 10 30 0 0
Guadalupe Pass 68 42 67 51 / 0 0 0 0
Hobbs 73 40 74 44 / 10 40 0 0
Marfa 79 42 74 43 / 0 0 0 0
Midland Intl Airport 80 48 77 51 / 20 70 0 0
Odessa 80 48 77 51 / 10 60 0 0
Wink 82 47 78 48 / 10 20 0 0
&&
.MAF WATCHES/WARNINGS/ADVISORIES...
TX...Red Flag Warning until 10 PM CDT /9 PM MDT/ this evening for
Central Brewster-Chinati Mountains-Chisos Basin-Crane-Davis
Mountains-Davis Mountains Foothills-Eastern Culberson-Ector-
Guadalupe Mountains Above 7000 Feet-Guadalupe and Delaware
Mountains-Loving-Lower Brewster County-Marfa Plateau-Pecos-
Presidio Valley-Reeves County Plains-Terrell-Upton-Van Horn
and Highway 54 Corridor-Ward-Winkler.
High Wind Warning from 4 PM CDT /3 PM MDT/ this afternoon to
midnight CDT /11 PM MDT/ tonight for Guadalupe Mountains
Above 7000 Feet-Guadalupe and Delaware Mountains.
Wind Advisory from 4 PM this afternoon to midnight CDT tonight
for Chinati Mountains-Davis Mountains-Davis Mountains
Foothills-Eastern Culberson-Marfa Plateau-Van Horn and
Highway 54 Corridor.
NM...Red Flag Warning until 9 PM MDT this evening for Chaves Plains-
Eddy Plains-Lea-Sacramento Foothills and Guadalupe
Mountains.
High Wind Warning from 3 PM this afternoon to 11 PM MDT this
evening for Guadalupe Mountains of Eddy County.
Wind Advisory from 3 PM this afternoon to 11 PM MDT this evening
for Eddy County Plains.
&&
SHORT TERM...13
LONG TERM....44
AVIATION...21