Flash Flood Warning 20, NWS Midland/Odessa, TX

089 
WGUS74 KMAF 012139
FFSMAF

Flash Flood Statement
National Weather Service Midland/Odessa TX
439 PM CDT Thu Jun 1 2023

TXC033-115-020030-
/O.CON.KMAF.FF.W.0020.000000T0000Z-230602T0030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Borden TX-Dawson TX-
439 PM CDT Thu Jun 1 2023

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 730 PM CDT THIS 
EVENING FOR WEST CENTRAL BORDEN AND EAST CENTRAL DAWSON COUNTIES...

At 439 PM CDT, Doppler radar indicated thunderstorms producing heavy 
rain across the warned area. Between 1.5 and 2.5 inches of rain have 
fallen. The expected rainfall rate is 1.5 to 3.5 inches in 1 hour. 
Flash flooding is ongoing or expected to begin shortly.

HAZARD...Flash flooding caused by thunderstorms.

SOURCE...Radar.

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...
  Los Ybanez and Key.

This includes the following streams and drainages...
  Salt Creek, Sand Creek, Colorado River, Mesquite Creek, Buck 
  Canyon Creek, Wet Tobacco Creek, Bull Creek, Tobacco Creek, Gold 
  Creek, Grape Creek and Sulphur Springs Draw.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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 3286 10167 3284 10145 3276 10147 3270 10148
      3268 10166 3270 10193 3282 10184

FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL RATE...1.5-3.5 INCHES IN 1 HOUR

$$

James DeBerry

Area Forecast Discussion
National Weather Service Midland/Odessa TX
237 PM CDT Thu Jun 1 2023

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

.SHORT TERM...
(This afternoon through Friday night)
Issued at 233 PM CDT Thu Jun 1 2023

* Severe Weather Outbreak Possible Friday

Bottom Line Up Front: The active weather pattern continues today,
with strong to severe thunderstorms possible across the northern
tier of the forecast area this afternoon and evening. Looking ahead
to tomorrow, a more widespread severe weather outbreak will be
possible, with all severe weather hazards in the mix - tornadoes,
very large hail, damaging winds, and flash flooding.

Persistent convection has been observed across the northern and
northeastern Permian Basin since this morning, though currently,
these storms are sub-severe with gusty winds and heavy rain the main
concerns. Outflow associated with this convection as well as remnant
boundaries from convection yesterday/last night, the dryline
(currently extending from Southeast New Mexico across the Stockton
Plateau and south to the Rio Grande) will largely dictate where
storms will initiate this afternoon, with a secondary focus off the
higher terrain of the Davis and Glass Mountains across southern
Pecos county. Despite the fairly broadbrushed chance of storms
today, the main focus for severe this afternoon and evening remains
across portions of Southeast New Mexico and the northern Permian
Basin, in closer proximity to a more pronounced outflow boundary
beneath continued low-level moist ascent and in the vicinity of the
triple point (currently analyzed to be near the northwestern Permian
Basin). Given instability on the order of 1500-2500 J/kg and
effective shear around 40 kt, any storm that forms today will have
the potential to become strong to severe with hail and winds the
main concerns, though across the aforementioned areas, the threat is
markedly greater for large to very large hail, damaging winds, and a
tornado or two. The hail and tornado threat will be greatest this
afternoon, and heading into this evening as storms congeal into
clusters and/or become more outflow dominant, the main concern will
transition to a damaging wind threat as storms translate eastward
across the northern tier of the forecast area.

This evening, storms are expected to exit to the east by around
midnight CDT, though continued southeasterly flow will maintain
elevated low-level moisture and mild overnight lows in the 60s to
around 70 degrees for most locations by early Friday morning. Aloft,
a short wave will be translating northeastward from northern MX
across far West Texas and New Mexico Friday morning, progged to move
over the region during the afternoon, which would be favorable
timing for convection. At the surface, the dryline will be pushed
westward up against the higher terrain Friday morning, then mix
eastward and sharpen in the vicinity of the TX/NM state line by
early afternoon. The dryline will act as the focus for storm
development, aided by increased ascent courtesy of the
aforementioned short wave. Instability around 2000-3000 J/kg will be
possible to the east of the dryline, with possibly greater
instability pooling along the boundary. Storms that develop are
expected to quickly become severe, and given steep mid-level lapse
rates (around 8 C/km) and effective shear around 40-50 kt, an
initial supercellular mode is expected, with all severe hazards
possible including a few tornadoes, very large hail, and significant
damaging winds. Flash flooding will also be possible, especially
over areas that have received recent rainfall and any locations that
see cell training occur. The Storm Prediction Center currently has a
Slight Risk for the eastern half of the forecast area on Friday,
with an Enhanced Risk extending from the Permian Basin south across
the Stockton Plateau.

Storms that develop Friday afternoon will move eastward, with an
increasing damaging wind threat expected into Friday evening as
storms transition from initial supercells into multicell clusters
and line segments. Thus, the severe threat will continue through the
evening across eastern areas, with tornado and hail threats
diminishing somewhat as the damaging wind threat ramps up. Trailing
stratiform precipitation may keep light to moderate rain across the
eastern Permian Basin and Lower Trans Pecos through the night, but
to the west, dry conditions are expected. In the wake of the
departing storms, lows will drop into the upper 50s to middle 60s
for most, near or just slightly below normal for early June.

&&

.LONG TERM...
(Saturday through Wednesday)
Issued at 233 PM CDT Thu Jun 1 2023

Into this weekend, weak upper level ridging takes a brief break and
flow becomes more zonal (west to east) across the area. Showers and
storms will be possible each day into the coming week, mainly across
the eastern half of the forecast area. The ridge returns for Monday
and into the rest of next week as a larger cutoff low churns over
California. Much like the pattern has been for the latter half of
May, weak short wave troughs and healthy moisture return from the
southeast will help keep precipitation, and therefore thunderstorm,
chances elevated through the extended.

Temperatures look to stay below normal in the mid to upper 80s
across the Permian Basin with low 90s along the Pecos River Valley.
The Presidio Valley and Big Bend will continue to be the hot spots
and consistently reach into the mid to upper 90s and even the low
100s (looking at you, Rio Grande Village). Overnight lows are
expected to stick near or just below normal in the low to mid 60s.
Mid to upper 50s possible for the higher terrain areas.

&&

.AVIATION...
(18Z TAFS)
Issued at 1232 PM CDT Thu Jun 1 2023

Elevated and at least intermittently gusty winds are expected
through this afternoon, with S/SE winds at MAF/FST/HOB, and SW
winds at CNM/PEQ/INK. There may be thunderstorms this afternoon
that impact HOB, though the window will be brief, and otherwise,
confidence in impacts from storms at other area terminals remains
very low. Despite this, erratic/gusty winds will be possible in
the vicinity of any outflow boundaries. Winds will diminish
somewhat overnight, with MVFR ceilings possible toward daybreak at
MAF/HOB, persisting toward the end of the period. Otherwise, VFR
conditions will prevail, with another more widespread round of
storms possible Friday afternoon.

&&

.PRELIMINARY POINT TEMPS/POPS...
Big Spring               68  87  60  84 /  10  50  60  40
Carlsbad                 63  93  58  90 /   0  20   0  10
Dryden                   70  91  68  84 /  10  20  20  30
Fort Stockton            67  93  63  87 /  10  30  20  40
Guadalupe Pass           62  84  59  84 /   0  10   0  10
Hobbs                    63  86  58  85 /   0  60  10  20
Marfa                    56  88  52  87 /   0  10  10  30
Midland Intl Airport     68  86  62  86 /  10  50  40  40
Odessa                   68  87  63  86 /   0  50  30  40
Wink                     67  96  63  90 /   0  30  20  30

&&

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

SHORT TERM...84
LONG TERM....93
AVIATION...84

Hazardous Weather Outlook
National Weather Service Midland/Odessa TX
235 PM CDT Thu Jun 1 2023

NMZ027>029-033-034-TXZ045>048-050>053-059>063-067>070-075-082-
270>282-021945-
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-Loving-Winkler-
Ector-Midland-Glasscock-Ward-Crane-Upton-Reagan-Pecos-Terrell-
Guadalupe Mountains Above 7000 Feet-Guadalupe and Delaware Mountains-
Van Horn and Highway 54 Corridor-Eastern Culberson County-
Reeves County Plains-Chinati Mountains-Marfa Plateau-Davis Mountains-
Davis Mountains Foothills-Central Brewster County-Chisos Basin-
Presidio Valley-Lower Brewster County-
235 PM CDT Thu Jun 1 2023 /135 PM MDT Thu Jun 1 2023/

This Hazardous Weather Outlook is for southeast New Mexico,
southwest Texas and western Texas.

.DAY ONE...This afternoon and tonight.

Thunderstorms are possible across much of the region through this
evening. The greatest risk of severe thunderstorms is across portions
of southeast New Mexico and the northern Permian Basin. Large hail
and damaging winds are the main concerns though a tornado or two is
possible.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

Severe thunderstorms are expected Friday afternoon and Friday
evening across portions of Southeast New Mexico and the Permian
Basin south across the Stockton Plateau into the Big Bend. All
severe hazards are possible with storms that develop, including a
few tornadoes, damaging winds, very large hail, and torrential
rainfall leading to flash flooding.

Saturday onward will have daily thunderstorm chances during the
afternoon and evening across the region. Each day will have the
potential for strong to severe thunderstorms capable of producing
torrential rainfall, strong winds, and hail.

.SPOTTER INFORMATION STATEMENT...

Weather spotters are encouraged to report significant weather
conditions according to Standard Operating Procedures.

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...
https://weather.gov/midland

Special Weather Statement
National Weather Service Midland/Odessa TX
339 PM CDT Thu Jun 1 2023

TXZ046-047-012130-
Dawson TX-Borden TX-
339 PM CDT Thu Jun 1 2023

...A strong thunderstorm will impact portions of western Borden and
east central Dawson Counties through 430 PM CDT...

At 339 PM CDT, Doppler radar was tracking a strong thunderstorm 12
miles east of Lamesa Municipal Airport, or 14 miles west of Gail,
moving east at 20 mph.

HAZARD...Wind gusts of 50 to 55 mph and nickel size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

Locations impacted include...
Gail, Hancock, Key and Arvana.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3269 10190 3284 10193 3294 10139 3260 10134
TIME...MOT...LOC 2039Z 272DEG 15KT 3277 10170

MAX HAIL SIZE...0.88 IN
MAX WIND GUST...55 MPH

88