NWS Midland/Odessa, TX wrote its last area forecast discussion before the first event at Apr 19, 5:34 PM MST, 4 minutes earlier. Its key messages:
Area forecast discussion, Apr 19, 5:34 PM MST, 4 minutes before
Area Forecast Discussion
National Weather Service Midland/Odessa TX
734 PM CDT Sat Apr 19 2025
...New AVIATION...
.KEY MESSAGES...
Updated at 721 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 a tornado or two cannot
be ruled out.
.SHORT TERM...
(This afternoon through Sunday night)
Issued at 301 PM CDT Sat Apr 19 2025
Heading into an active late afternoon and evening with continued
severe weather potential across the Permian Basin and Lower Trans
Pecos region. A mid-level low is currently progressing into
western portions of New Mexico. A difluent pattern within
southwesterly flow aloft is spreading across west Texas this
afternoon, while a cold front is also draped across the southern
Permian Basin and into the Upper Trans Pecos this afternoon. Large
scale ascent ahead of the approaching system has resulted in the
development of scattered to numerous storms across the eastern and
southeastern Permian Basin and into portions of northeastern Pecos
county in the vicinity of the boundary this afternoon, several of
which have become supercells capable of producing hail of ping
pong to golfball size or greater and damaging winds in excess of
60-70 mph.
The mid-level low will continue to progress eastward across New
Mexico through this evening. A potent shortwave trough along the
base of this feature is expected to swing across west Texas later
this evening. Additional forcing will likely ignite additional
thunderstorms along an advancing/reinforcing cold front across the
Permian Basin and Lower Trans Pecos region this evening and recent
CAMs have been consistent in showing this scenario. MUCAPE values
up to 1500-2500 J/KG in combination with steep mid level lapse
rates, strong deep layer shear will certainly provide a favorable
environment for severe storms across these areas this evening. The
primary hazard will be large hail of ping pong to golfball size
(or larger) hail and damaging gusts in excess of 60-70 mph. 0-1 km
SRH values of 150-350 m2/s2 could result in potential for a
tornado or two through this evening. Storms could also produce
locally heavy rainfall, potentially in excess of 1-2" in a short
period of time which could result in localized flash flooding. The
severe threat should end by around 1 AM. A period of strong
westerly winds will follow frontal passage through this evening.
High winds will impact the Guadalupe Mountains, where a High Wind
Warning remains in effect through this evening. A Wind Advisory
also continues through the evening from the Eddy County plains to
the Davis Mountains/Marfa Plateau. Dry conditions follow for
Sunday.
&&
.SHORT TERM...
(This afternoon through Sunday night)
Issued at 301 PM CDT Sat Apr 19 2025
Heading into an active late afternoon and evening with continued
severe weather potential across the Permian Basin and Lower Trans
Pecos region. A mid-level low is currently progressing into
western portions of New Mexico. A difluent pattern within
southwesterly flow aloft is spreading across west Texas this
afternoon, while a cold front is also draped across the southern
Permian Basin and into the Upper Trans Pecos this afternoon. Large
scale ascent ahead of the approaching system has resulted in the
development of scattered to numerous storms across the eastern and
southeastern Permian Basin and into portions of northeastern Pecos
county in the vicinity of the boundary this afternoon, several of
which have become supercells capable of producing hail of ping
pong to golfball size or greater and damaging winds in excess of
60-70 mph.
The mid-level low will continue to progress eastward across New
Mexico through this evening. A potent shortwave trough along the
base of this feature is expected to swing across west Texas later
this evening. Additional forcing will likely ignite additional
thunderstorms along an advancing/reinforcing cold front across the
Permian Basin and Lower Trans Pecos region this evening and recent
CAMs have been consistent in showing this scenario. MUCAPE values
up to 1500-2500 J/KG in combination with steep mid level lapse
rates, strong deep layer shear will certainly provide a favorable
environment for severe storms across these areas this evening. The
primary hazard will be large hail of ping pong to golfball size
(or larger) hail and damaging gusts in excess of 60-70 mph. 0-1 km
SRH values of 150-350 m2/s2 could result in potential for a
tornado or two through this evening. Storms could also produce
locally heavy rainfall, potentially in excess of 1-2" in a short
period of time which could result in localized flash flooding. The
severe threat should end by around 1 AM. A period of strong
westerly winds will follow frontal passage through this evening.
High winds will impact the Guadalupe Mountains, where a High Wind
Warning remains in effect through this evening. A Wind Advisory
also continues through the evening from the Eddy County plains to
the Davis Mountains/Marfa Plateau. Dry conditions follow for
Sunday.
&&
.LONG TERM...
(Monday through Friday)
Issued at 301 PM CDT Sat Apr 19 2025
Following Sunday night which may be the coolest night in the
extended, Monday may end up being among the warmest in the
extended, as highs in the NBM rise 5 degrees above average, with a
high probability of highs at least 80 F except for upper 70s for
higher elevations, medium probability of upper 80s to 90s Upper
Trans Pecos into Stockton Plateau, as well as low to medium
probability of highs at least 90F Big Bend and Presidio Valley, with
lower to mid 90s Big Bend and Presidio Valley shown for the NBM.
This will be courtesy subtle ridging in quasi-zonal flow as
evidenced by 500 mb geopotential heights increasing from 558 to 564
decameters Sunday to 576 to 582 decameters Monday, and 1000-500 mb
thicknesses increasing from 564 to 570 decameters Sunday to 570 to
576 decameters Monday. Lows Monday night 10 degrees above average
are expected as a result of these warmer highs taking longer to cool
off, ranging from 50s SE NM plains, northern Permian Basin, and
higher elevations, to mid 50s to lower 60s elsewhere. It will be a
similar story Tuesday for highs, but increasing rain chances.
As a matter of fact, compared to last month and earlier this month,
the extended is shaping up to feature frequent rain chances after
Monday, as a dryline is depicted to set up from SE NM plains to west
of Davis Mountains and Big Bend each day through next week.
Separation of more humid air from the Gulf to the east and drier air
from Northern MX and NM to the west means capping from the EML will
help to initiate storms if enough instability builds up and forcing
for ascent at the surface and aloft in any synoptic or mesoscale
features develop and move over the area. PoPs this far out cannot be
stated with certainty, but at least 40% to 50% PoPs are present from
Terrell County into central Permian Basin beginning Tuesday, with
50% to 60% PoPs eastern Permian Basin, 15% to 25% PoPs Davis
Mountains into SE NM plains east to Lea County down to Stockton
Plateau and Big Bend on Tuesday, with similar magnitudes but
different PoP boundaries after as the dryline oscillates west and
east over the area. Highest PoPs are currently indicated for Tuesday
evening and again on Thursday morning through afternoon, but this
far out details could change. As winds will remain light throughout
the troposphere owing to an absence of strong short wave troughs in
west/southwesterly flow regime and mainly light southerly to
southeasterly winds below high wind criteria everywhere, low severe
weather risk is indicated at this time, and any enhancement in
convective coverage largely down to traversing disturbances aloft
and mesoscale influences such as heating of elevated terrain and
storm interactions with pre-existing mesoscale boundaries and prior
convection.
With risk for severe weather limited, the main risk with any showers
and storms next week will be heavy rain. Ensembles indicate that
from Sunday through the end of next week, there is medium 30% to 50%
probability of mean rain total accumulations from 0.25" to 0.50"
northeast and east of the Davis Mountains and southwest of Pecos
River, and high probability 80% or greater probability of 0.75" to
1.00" mean rain total accumulation central Permian Basin east into
eastern Permian Basin down into Terrell County. NBM shows similar
aside from totals closer to 1: or above for central into eastern
Permian Basin, and lower amounts only a few tenths of an inch to
0.25" north and east of Davis Mountains and southwest of central
Permian Basin from Upper Trans Pecos to Lower Trans Pecos and
Terrell County. As NBM tends to consistently underestimate rain
totals a few day in advance of an event with wetting rains, this
could be an indication that if coverage of showers and storms is
more isolated, rain totals could be lower than ensembles and NBM are
showing now. Nonetheless, even minimum percentile rain total
accumulations are indicating at least a few tenths of an inch for
all locations from central Permian Basin down to Terrell County and
points east of there, and up to at least 0.50" in even most of the
lowest percentile ensembles for the Western Low Rolling Plains.
Therefore, there looks to be a good chance of wetting rains between
late Sunday and late next week for much of the Permian Basin down
into the Stockton Plateau and Terrell County. Ensembles depict a
high probability of dew point temperatures at least 55F north and
northeast of Davis Mountains Tuesday into the end of next week, and
a medium to high probability of dew point temperatures at least 60F
for this same region and time period, so next week will feel much
less dry east of western higher terrain than it has in some time,
even outside of any showers and storms. As a result of abundant
clouds and rain chances each day Tuesday into late next week
limiting direct solar heating during the day while limiting
radiational cooling overnight, with heights 576 to 582 decameters
and thicknesses below 576 decameters indicative of a mild air mass
over the area, highs near to below average ranging from mid to upper
70s to lower to mid 80s, upper 80s to 90s Upper Trans Pecos and
Stockton Plateau as well as Big Bend and Presidio Valley are
forecast each day after this Sunday, and lows 5 to 10 degrees above
average in the 50s and 60s are forecast each night after Tuesday.
&&
.AVIATION...
(00Z TAFS)
Issued at 721 PM CDT Sat Apr 19 2025
Easterly and northeasterly winds become northwesterly behind a
cold front later this evening. Scattered storm activity is also
expected this evening at most sites. Due to strong winds, blowing
dust will be an issue over southeastern New Mexico for the next
couple of hours. Once a cold front sweeps through late this
evening and into the overnight, winds should begin to calm down.
&&
.FIRE WEATHER...
Issued at 301 PM CDT Sat Apr 19 2025
Min RH below critical 15% down into the single digits southwest of
Pecos River as well as southwest winds for this region at least 20
miles per hour this afternoon and evening, dry to extremely dry
fuels, ERCs up to at least the 50th percentile, and poor overnight
recovery all yield RFTIs 6 to 7 and critical to extreme fire weather
southwest of Pecos River today. A Red Flag Warning is in effect
through this evening along and west and southwest of Pecos River =.
Below average temperatures Sunday decrease fire weather conditions.
Warmer than average temperatures Monday with persistent min RH below
critical for Sacramento Foothills result in RFTIs up to 4 and
elevated fire weather risk. Min RH remaining below critical and
southwest winds at least 20 miles per hour each afternoon and
evening after Monday into end of next week result in elevated to
near critical fire weather conditions for this same region
thereafter.
&&
.PRELIMINARY POINT TEMPS/POPS...
Big Spring 46 74 49 83 / 90 0 0 0
Carlsbad 41 75 46 86 / 10 0 0 0
Dryden 53 82 52 86 / 40 0 0 0
Fort Stockton 49 77 52 87 / 20 0 0 0
Guadalupe Pass 42 67 50 78 / 0 0 0 0
Hobbs 39 72 45 82 / 20 0 0 0
Marfa 41 72 44 82 / 0 0 0 0
Midland Intl Airport 46 75 50 83 / 70 0 0 0
Odessa 46 74 50 83 / 50 0 0 0
Wink 46 77 49 87 / 20 0 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 until midnight CDT /11 PM MDT/ tonight for
Guadalupe Mountains Above 7000 Feet-Guadalupe and Delaware
Mountains.
Wind Advisory until 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 until 11 PM MDT this evening for Guadalupe
Mountains of Eddy County.
Wind Advisory until 11 PM MDT this evening for Eddy County
Plains.
&&
SHORT TERM...21
LONG TERM....94
AVIATION...95