Flash Flood Warning 53, NWS Midland/Odessa, TX

100 
WGUS74 KMAF 130810
FFSMAF

Flash Flood Statement
National Weather Service Midland/Odessa TX
310 AM CDT SAT OCT 13 2018

TXC227-131130-
/O.CON.KMAF.FF.W.0053.000000T0000Z-181013T1130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Howard TX-
310 AM CDT SAT OCT 13 2018

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 630 AM CDT FOR
SOUTHERN HOWARD COUNTY...

At 308 AM CDT, Dopplar Radar indicated heavy rain due to 
thunderstorms approaching Big Spring. The threat of flash flooding 
continues.

Some locations that will experience flooding include...
Big Spring, Coahoma, Sand Springs, Big Spring Country Club and Big
Spring McMahon-Wrinkle Airpark.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Be especially cautious at night when it is harder to recognize the
dangers of flooding.

Excessive runoff from heavy rainfall will cause flooding of small
creeks and streams, urban areas, highways, streets and underpasses as
well as other drainage areas and low lying spots.

Please report flooding to your local law enforcement agency when you
can do so safely.

A Flash Flood Warning means that flooding is imminent or occurring.
If you are in the warned area move to higher ground immediately.
Residents living along streams and creeks should take immediate
precautions to protect life and property.

&&

LAT...LON 3235 10128 3222 10128 3215 10159 3227 10159

$$

33

Area Forecast Discussion
National Weather Service Midland/Odessa TX
1213 AM CDT Sat Oct 13 2018

.DISCUSSION...
See aviation discussion below.

&&

.AVIATION...
Rain and thunderstorms will impact the west Texas and southeast
New Mexico terminals overnight with prevailing or tempo MVFR/IFR
conditions. The precipitation should end by 12z but MVFR ceilings
look to hang around to at least late morning with MVFR ceilings
continuing for much of this afternoon at KMAF and KHOB.

12

&&

.PREV DISCUSSION... /issued 648 PM CDT Fri Oct 12 2018/

DISCUSSION...

Please see the 00Z aviation discussion below.

AVIATION...

At issuance, VFR conditions prevail areawide, though conditions
will deteriorate late this evening from west to east as
thunderstorms overspread the region. MVFR to potentially IFR
visibility in heavy rain will result at area terminals, with
lightning, gusty winds, and hail possible with any storm. Have
maintained TEMPO mention at this time, though later issuances may
need to include prevailing TS depending on radar trends. Low
ceilings may linger through the early morning hours Saturday,
particularly at CNM/HOB/MAF, with VFR conditions expected to
return areawide by the afternoon. Winds will remain elevated,
shifting the WSW by the end of the period.

PREV DISCUSSION... /issued 335 PM CDT Fri Oct 12 2018/

DISCUSSION...

.Heavy rainfall still expected overnight then turning much colder
Sunday...

Have your rubber boots handy then get your winter coats out as an
active fall weather pattern continues. We are in all tropical mode
to start off the forecast as former hurricane and now Tropical
Depression Sergio begins to affect our area. The storm made
landfall last night over Baja California and will accelerate
across northern Mexico within southwest flow aloft. While the low
level circulation will diminish across Mexico's higher terrain,
the associated slug of tropical moisture will stay in tact.
Meanwhile, a cold front will slowly move south across the area
tonight, sharpening a baroclinic zone from west to east near the
I-20 corridor. Rich gulf moisture will remain in place ahead of
Sergio as PWATs are already near record levels! While a few
storms are possible this afternoon, large scale forcing will
increase significantly this evening and overnight across the area
as Sergio arrives. This will signal more widespread thunderstorm
development across far West Texas reaching the Guadalupe Mountains
around sunset, then spreading across the rest of the area through
the night.

The severe threat looks interesting overnight. Lapse rates will
not be too steep, but vertical shear and elevated instability will
increase along the cold front. A few storms could produce large
hail and damaging winds while an isolated tornadoes are even
possible mainly along and either side of I-20 overnight. Make sure
you have a way to receive warnings overnight as it could be
fairly active. As mentioned above, moisture levels are at record
highs and the ground is still saturated from the widespread heavy
rain and flooding last week. Even though the remnants of Sergio
look to move quickly through the area, heavy rain could focus
along the cold front and several locations could pick up 1-3" very
quickly. With all this being said will go ahead with a Flash
Flood Watch from around I-20 north where the heaviest rain is
forecast to fall. Rain will end from west to east Saturday with
clearing conditions and warming temperatures by afternoon.

There is no rest for the weary as attention then turns to our next
weather maker, a strong cold front due to arrive Sunday. An upper
trough will dig across the Rockies this weekend and phase with a
southern stream storm system over Arizona. Very cold air associated
with the northern trough will sweep across the Plains arriving in
our area sometime Sunday. Models continue to struggle with timing of
the front showing a wide variety of solutions. As the upper
trough digs to our west, height falls will act to slow the front
Sunday. It appears much of the area will see warmer temperatures
so have increased highs slightly. Once the front does arrive,
temperatures will fall 30-40 degrees within a few hours with
gusty northerly winds developing! Strong winds are likely through
Guadalupe Pass and a High Wind Watch will be issued soon.

Cold, surface high pressure will build in Sunday night as
temperatures are expected to fall to near record lows (even with
cloudy skies)! The coldest temperatures will reside across northern
Lea county and higher elevations of the Guadalupe and Davis
Mountains. These locations could see their first freeze of the
season so look for a Freeze Watch soon. Other areas will be
monitored for a light freeze. Southwesterly flow aloft and Gulf
moisture overriding the front will allow for some light
precipitation across the area early next week. It is not out of the
question that freezing drizzle/light sleet may mix in with the rain
mainly over northern Lea county Monday morning. No accumulations are
expected at this time, but the situation will continue to be
monitored. Clouds and continued CAA will keep temperatures nearly 40
degrees below average Monday afternoon!

The upper trough looks to stay parked to our west much of next week
as it becomes cut off from the main flow. Overall, this spells a
chilly week with periods of showers across the area.

&&

.PRELIMINARY POINT TEMPS/POPS...
Big Spring                     75  59  70  36 /  70  10  50  60
Carlsbad                       77  58  72  37 /  30   0  10  30
Dryden                         87  66  82  45 /  10  10  30  90
Fort Stockton                  81  61  77  39 /  20  10  20  60
Guadalupe Pass                 70  55  65  33 /  20  10  10  20
Hobbs                          74  56  66  33 /  50  10  20  30
Marfa                          77  52  76  38 /  10  10  10  40
Midland Intl Airport           77  61  73  37 /  50  10  40  60
Odessa                         77  61  73  37 /  50  10  30  50
Wink                           79  60  75  39 /  30  10  20  40

&&

.MAF WATCHES/WARNINGS/ADVISORIES...
NM...Flash Flood Watch until 9 AM MDT Saturday for Central Lea County-
     Eddy County Plains-Guadalupe Mountains of Eddy County-
     Northern Lea County-Southern Lea County.

TX...Flash Flood Watch until 10 AM CDT /9 AM MDT/ this morning for
     Andrews-Borden-Dawson-Ector-Gaines-Glasscock-Guadalupe
     Mountains-Howard-Loving-Martin-Midland-Mitchell-Reeves
     County and Upper Trans Pecos-Scurry-Van Horn and Highway 54
     Corridor-Winkler.

&&

Hazardous Weather Outlook
National Weather Service Midland/Odessa TX
829 PM CDT Fri Oct 12 2018

NMZ027>029-033-034-TXZ045>048-050>053-057>063-067>070-074-075-
079>082-258-140130-
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-
829 PM CDT Fri Oct 12 2018 /729 PM MDT Fri Oct 12 2018/

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

.DAY ONE...Tonight

Thunderstorms are expected, especially overnight along and north of
Interstate 20. Any storms that do develop will be accompanied by
frequent lightning. A few storms could become severe, producing large
hail. Isolated tornadoes cannot be ruled out. Heavy rainfall will
result in localized flash flooding, especially in urban areas and
locations that had heavy rainfall during the past week.

Severe Thunderstorm Watch 410 is in effect for the southern Permian
Basin, Trans Pecos, and Big Bend regions.

A Flash Flood Watch is in effect for Southeast New Mexico and most
of West Texas north of Interstate 20.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday

Thunderstorm activity will continue into Saturday, with heavy
rainfall resulting in localized flash flooding, especially north of
Interstate 20 in West Texas.

A Flash Flood Watch is in effect for Southeast New Mexico and most
of West Texas north of Interstate 10 through mid morning Saturday.

Gap winds will be possible through Guadalupe Pass Sunday night and
Monday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed overnight.

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...
http://weather.gov/midland

Special Weather Statement
National Weather Service Midland/Odessa TX
1111 PM CDT FRI OCT 12 2018

TXZ074-075-130445-
Pecos TX-Davis/Apache Mountains Area TX-
1111 PM CDT FRI OCT 12 2018

...SIGNIFICANT WEATHER ADVISORY FOR WEST CENTRAL PECOS...NORTHERN
BREWSTER AND EASTERN JEFF DAVIS COUNTIES UNTIL 1145 PM CDT...

At 1111 PM CDT, Doppler radar was tracking a strong thunderstorm 23
miles northeast of Alpine, moving northeast at 30 mph.

Nickel size hail and wind gusts up to 50 mph will be possible with
this storm.

This storm will remain over mainly rural areas of west central
Pecos...northern Brewster and eastern Jeff Davis Counties.

A Severe Thunderstorm Watch remains in effect until 400 AM CDT for
southwestern Texas.

LAT...LON 3051 10345 3061 10351 3088 10326 3061 10306
TIME...MOT...LOC 0411Z 235DEG 27KT 3062 10339

10

Special Weather Statement
National Weather Service Midland/Odessa TX
1142 PM CDT FRI OCT 12 2018

TXZ075-130515-
Pecos TX-
1142 PM CDT FRI OCT 12 2018

...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL PECOS COUNTY UNTIL 1215
AM CDT...

At 1142 PM CDT, Doppler radar was tracking a strong thunderstorm 16
miles south of Fort Stockton, moving northeast at 30 mph.

Nickel size hail and wind gusts up to 50 mph will be possible with
this storm.

This storm will remain over mainly rural areas of central Pecos
County.

A Severe Thunderstorm Watch remains in effect until 400 AM CDT for
southwestern Texas.

LAT...LON 3055 10283 3069 10297 3089 10277 3086 10258
      3067 10252
TIME...MOT...LOC 0442Z 231DEG 25KT 3066 10285

10

PRELIMINARY LOCAL STORM REPORT
National Weather Service Midland/Odessa TX
1202 AM CDT SAT OCT 13 2018

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1130 PM     HAIL             25 E FORT STOCKTON      30.89N 102.46W
10/12/2018  E1.75 INCH       Pecos              TX   LAW ENFORCEMENT

            SHERIFF DEPT REPORTED GOLF BALL SIZE HAIL BETWEEN MILE
            MARKERS 280-286 ALONG INTERSTATE 10.

&&

MARK.STROBIN

Special Weather Statement
National Weather Service Midland/Odessa TX
1243 AM CDT SAT OCT 13 2018

TXZ058-075-130615-
Pecos TX-Reeves County and Upper Trans Pecos TX-
1243 AM CDT SAT OCT 13 2018

...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN PECOS AND
SOUTHEASTERN REEVES COUNTIES UNTIL 115 AM CDT...

At 1243 AM CDT, Doppler radar was tracking a strong thunderstorm 15
miles east of Saragosa, or 32 miles west of Fort Stockton, moving
northeast at 35 mph.

Dime size hail and winds in excess of 40 mph will be possible with
this storm.

Locations impacted include...
Firestone Test Track.

This includes Interstate 10 between mile markers 220 and 247.

A Severe Thunderstorm Watch remains in effect until 400 AM CDT for
southwestern Texas.

LAT...LON 3080 10348 3097 10355 3114 10338 3110 10315
      3091 10306
TIME...MOT...LOC 0543Z 236DEG 29KT 3094 10342

10

Special Weather Statement
National Weather Service Midland/Odessa TX
110 AM CDT SAT OCT 13 2018

TXZ075-130630-
Pecos TX-
110 AM CDT SAT OCT 13 2018

...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN PECOS COUNTY UNTIL
130 AM CDT...

At 110 AM CDT, Doppler radar was tracking a strong thunderstorm 12
miles southwest of McCamey, moving northeast at 25 mph.

Nickel size hail and winds in excess of 40 mph will be possible with
this storm.

Locations impacted include...
Bakersfield.

This includes Interstate 10 between mile markers 292 and 299.

A Severe Thunderstorm Watch remains in effect until 400 AM CDT for
southwestern Texas.

LAT...LON 3085 10230 3097 10245 3108 10236 3107 10233
      3103 10229 3104 10225 3103 10221 3100 10219
      3101 10218 3100 10214 3100 10212 3099 10209
TIME...MOT...LOC 0610Z 221DEG 22KT 3097 10232

10

Special Weather Statement
National Weather Service Midland/Odessa TX
123 AM CDT SAT OCT 13 2018

TXZ075-130700-
Pecos TX-
123 AM CDT SAT OCT 13 2018

...SIGNIFICANT WEATHER ADVISORY FOR NORTH CENTRAL PECOS COUNTY UNTIL
200 AM CDT...

At 122 AM CDT, Doppler radar was tracking a strong thunderstorm 12
miles west of Fort Stockton, moving east at 30 mph.

Nickel size hail and winds in excess of 40 mph will be possible with
this storm.

Locations impacted include...
Fort Stockton, Fort Stockton-Pecos County Airport and Firestone Test
Track.

This includes Interstate 10 between mile markers 243 and 263.

A Severe Thunderstorm Watch remains in effect until 400 AM CDT for
southwestern Texas.

LAT...LON 3088 10316 3103 10316 3111 10282 3081 10281
TIME...MOT...LOC 0622Z 268DEG 25KT 3093 10309

10