Flash Flood Warning 20, NWS Midland/Odessa, TX

479 
WGUS74 KMAF 192344
FFSMAF

Flash Flood Statement
National Weather Service Midland/Odessa TX
644 PM CDT Tue May 19 2026

TXC043-371-443-200215-
/O.CON.KMAF.FF.W.0020.000000T0000Z-260520T0215Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Brewster TX-Pecos TX-Terrell TX-
644 PM CDT Tue May 19 2026

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 915 PM CDT THIS
EVENING FOR EAST CENTRAL BREWSTER, SOUTH CENTRAL PECOS AND WEST
CENTRAL TERRELL COUNTIES...

At 644 PM CDT, Doppler radar indicated thunderstorms producing heavy
rain across the warned area. Between 2 and 3 inches of rain have
fallen. Additional rainfall amounts of 1 to 2 inches are possible in
the warned area. Flash flooding is ongoing or expected to begin
shortly.

HAZARD...Flash flooding caused by thunderstorms.

SOURCE...Radar indicated.

IMPACT...Flash flooding of small creeks and streams, urban areas,
         highways, streets and underpasses as well as other poor
         drainage and low-lying areas.

Some locations that will experience flash flooding include...
  Sanderson.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.

Be aware of your surroundings and do not drive on flooded roads.

Remain alert for flooding even in locations not receiving rain.
Arroyos, streams, and rivers can become raging killer currents in a
matter of minutes, even from distant rainfall.

Please report observed flooding to local emergency services or law
enforcement and request they pass this information to the National
Weather Service when you can do so safely.

&&

LAT...LON 3019 10276 3031 10264 3038 10255 3030 10257
      3023 10256 3017 10253 3016 10236 3017 10229
      3011 10239 2993 10259 2992 10284 3006 10287

FLASH FLOOD...RADAR INDICATED

$$

95

378 
WGUS74 KMAF 200109
FFSMAF

Flash Flood Statement
National Weather Service Midland/Odessa TX
809 PM CDT Tue May 19 2026

TXC043-371-443-200215-
/O.CON.KMAF.FF.W.0020.000000T0000Z-260520T0215Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Brewster TX-Pecos TX-Terrell TX-
809 PM CDT Tue May 19 2026

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 915 PM CDT THIS
EVENING FOR EAST CENTRAL BREWSTER, SOUTH CENTRAL PECOS AND WEST
CENTRAL TERRELL COUNTIES...

At 809 PM CDT, emergency management reported thunderstorms producing
heavy rain across the warned area. Between 2 and 3 inches of rain
have fallen. Additional rainfall amounts up to 1 inch are possible in
the warned area. Flash flooding is already occurring. At 8PM,
emergency management reported that a section of Highway 90, 10 miles
west of Sanderson, was flooded. Additionally hail was covering the
road making travel very difficult in not impossible.

HAZARD...Flash flooding caused by thunderstorms.

SOURCE...Emergency management reported.

IMPACT...Flash flooding of small creeks and streams, urban areas,
         highways, streets and underpasses as well as other poor
         drainage and low-lying areas.

Some locations that will experience flash flooding include...
  Sanderson.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.

Be aware of your surroundings and do not drive on flooded roads.

Remain alert for flooding even in locations not receiving rain.
Arroyos, streams, and rivers can become raging killer currents in a
matter of minutes, even from distant rainfall.

Please report observed flooding to local emergency services or law
enforcement and request they pass this information to the National
Weather Service when you can do so safely.

&&

LAT...LON 3019 10276 3031 10264 3038 10255 3030 10257
      3023 10256 3017 10253 3016 10236 3017 10229
      3011 10239 2993 10259 2992 10284 3006 10287

FLASH FLOOD...OBSERVED

$$

10

Area Forecast Discussion
National Weather Service Midland/Odessa TX
323 PM CDT Tue May 19 2026

...New SHORT TERM, LONG TERM...

.KEY MESSAGES...
Updated at 322 PM CDT Tue May 19 2026

- Strong to severe storms remain possible late this afternoon and
  evening, mainly from the southern Permian Basin into the Lower
  Trans Pecos. Large hail (up to 2 inches or greater), damaging
  winds (up to 70 mph), and frequent lightning will accompany the
  most intense storms that develop.

- Strong to severe storms are expected once again on Wednesday.
  Large hail and damaging winds will be threats as well as
  localized flash flooding.

- Shower and storm chances continue into the weekend as additional
  disturbances move overhead.

&&

.SHORT TERM...
(This afternoon through Wednesday night)
Issued at 322 PM CDT Tue May 19 2026

Surface observations indicate that the cold front extends from
just east of the Guadalupe and Davis Mountains to the Upper Trans
Pecos and southern Permian Basin as of 2 PM CDT this afternoon.
A cooler and drier airmass remains in place over the rest of the
forecast area behind the cold front, and we ended up lowering
afternoon high temperatures in the 70s to mid 80s behind this
boundary. SPC mesoscale analysis shows a corridor of moderate
instability with CAPE values of 1500-3000 J/KG along and just of
this boundary over the southern Permian Basin and into the Lower
Trans Pecos and eastern Big Bend where temperatures are in the
upper 80s to mid 90s with dewpoints in the mid 50s to lower 60s. A
shortwave impulse embedded within southwesterly flow aloft will
move across west Texas this afternoon and we expect scattered to
numerous showers and thunderstorms to develop along the southern
Basin and Lower Trans Pecos near the boundary and to the east of
the trailing dryline late this afternoon into this evening.
The moderate instability, steep mid-level lapse rates, and
increasing effective bulk shear will support organized storm
growth and supercell development over these locations. Large hail
up to 2"+ in diameter and damaging wind gusts will be the primary
severe modes with any supercell storms that develop. The tornado
threat will be lower, but still cannot be ruled out with supercells
that develop in the vicinity of the front. Heavy rainfall may also
lead to localized flash flooding. The severe threat should by mid
to late evening as storms move east of our region. Cooler
temperatures return tonight with lows in the 50s over parts of
southeast New Mexico and the northern Permian Basin, as well as
higher terrain areas. Lows will be in the 60s to near 70 over our
central and southern zones.

Another active day is expected Wednesday as shortwave impulses
continue to translate over the forecast area within the
southwesterly flow aloft. The surface boundary will remain
oriented from the southeast New Mexico Plains to the Trans Pecos.
Shower/storm coverage will increase over much of the forecast area
Wednesday afternoon into Wednesday evening, with the greatest
coverage (50-70%) over the Permian Basin, the Trans Pecos, and Big
Bend. Instability and shear parameters will once again favor
organized convection with a few storms capable of becoming severe
with large hail and damaging winds. The greatest instability will
be over the Permian Basin into the Trans Pecos and Big Bend where
large hail over golfball size (potentially 2"+) will be possible
Wednesday afternoon and evening. The severe threat may shift to
our east by late Wednesday evening but a few showers and storms
may persist into Thursday night under the southwesterly flow
aloft. Localized flash flooding will be possible with storms that
have intense rainfall rates. Highs Wednesday afternoon remain
below normal with readings in the 70s and 80s over much of the
region, except 90s along the Rio Grande. Lows Wednesday night
range in the 50s and 60s.

&&

.LONG TERM...
(Thursday through Monday)
Issued at 322 PM CDT Tue May 19 2026

By Friday, the dryline looks to set up somewhere along our far
eastern counties or just to the east of our forecast area.
Meanwhile, guidance shows an upper-level low located over Baja,
leaving the region under southwest flow aloft. This may allow for an
isolated shower/storm or two to develop, but the best chances are
currently expected to be east of our forecast area. Chances (10-30%)
of showers and storms increase Friday evening with the retreating
dryline. Long-range guidance keeps us under a similar pattern
through the weekend/early next week (with the help of upslope flow),
yielding shower and storm chances each day in the extended. At this
time, there is uncertainty in rainfall totals, which will depend on
where remnant boundaries set up and the track of the aforementioned
upper-level low. Otherwise, afternoon highs are forecast to be in
the 80s (90s in many spots on Friday) for most each day. Overnight
lows bottom out into the 50s and 60s each night.

Greening

&&

.AVIATION...
(18Z TAFS)
Issued at 115 PM CDT Tue May 19 2026

A cold front will extend from far southeast New Mexico and through
the Trans Pecos and southern Permian Basin this afternoon.
Scattered TSRA are expected to develop over the eastern and
southern Permian Basin and portions of the Trans Pecos along this
boundary this afternoon into this evening. We maintained a PROB30
mention of TSRA at KFST late this afternoon. Northerly to
northeasterly winds of 10-20 knots with occasional higher gusts
will gradually turn easterly late this afternoon into this
evening. VFR generally remains prevalent through this afternoon
and evening. There is potential for MVFR ceilings to develop late
tonight into Wednesday morning, especially over the Permian Basin
near KMAF.

&&

.PRELIMINARY POINT TEMPS/POPS...
Big Spring               59  77  60  81 /  10  40  60  40
Carlsbad                 61  83  59  88 /  10  30  30  20
Dryden                   66  84  64  85 /  30  40  80  30
Fort Stockton            63  85  61  87 /  10  60  60  30
Guadalupe Pass           60  79  58  81 /  10  20  20  10
Hobbs                    55  75  55  82 /  10  40  40  30
Marfa                    53  86  51  82 /   0  20  40  20
Midland Intl Airport     60  77  60  82 /  10  50  60  30
Odessa                   61  78  61  82 /  10  50  60  30
Wink                     61  82  60  86 /  10  40  50  20

&&

.MAF WATCHES/WARNINGS/ADVISORIES...
TX...None.
NM...None.
&&

SHORT TERM...21
LONG TERM....55
AVIATION...21