Wind Advisory 10, NWS Birmingham, AL

Autauga County, AL, Barbour County, AL, Blount County, AL, Bullock County, AL, Calhoun County, AL, Chambers County, AL, Cherokee County, AL, Chilton County, AL, Clay County, AL, Cleburne County, AL, Coosa County, AL, Dallas County, AL, Elmore County, AL, Etowah County, AL, Jefferson County, AL, Lee County, AL, Lowndes County, AL, Macon County, AL, Montgomery County, AL, Pike County, AL, Randolph County, AL, Russell County, AL, Shelby County, AL, St. Clair County, AL, Talladega County, AL, Tallapoosa County, AL

438 
WWUS74 KBMX 282016
NPWBMX

URGENT - WEATHER MESSAGE
National Weather Service Birmingham AL
316 PM CDT Mon May 28 2018

...STRONG WINDS POSSIBLE ACROSS THE SOUTHEAST THROUGH EARLY
TOMORROW MORNING...

ALZ035>038-040>050-291200-
/O.CON.KBMX.WI.Y.0010.000000T0000Z-180529T1200Z/
Chilton-Coosa-Tallapoosa-Chambers-Dallas-Autauga-Lowndes-Elmore-
Montgomery-Macon-Bullock-Lee-Russell-Pike-Barbour-
Including the cities of Clanton, Rockford, Alexander City, 
Dadeville, Valley, Lanett, Lafayette, Selma, Prattville, 
Fort Deposit, Hayneville, Wetumpka, Tallassee, Montgomery, 
Tuskegee, Union Springs, Auburn, Opelika, Phenix City, Troy, 
and Eufaula
316 PM CDT Mon May 28 2018

...WIND ADVISORY REMAINS IN EFFECT UNTIL 7 AM CDT TUESDAY...

* TIMING...through early tomorrow morning. 

* WINDS...of 20 to 30 mph with gust to near 40 mph will be 
  possible. 

* IMPACTS...Large limbs and trees can fall with this wind as the 
  ground will be saturated as the stronger winds move through. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Advisory means that wind gusts of 35 mph are expected.
Winds this strong can make driving difficult...especially for
high profile vehicles. Use extra caution.

&&

$$

410 
WWUS74 KBMX 290304
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URGENT - WEATHER MESSAGE
National Weather Service Birmingham AL
1004 PM CDT Mon May 28 2018

...STRONG WINDS POSSIBLE ACROSS THE SOUTHEAST THROUGH EARLY
TUESDAY MORNING...

ALZ035>038-040>050-291200-
/O.CON.KBMX.WI.Y.0010.000000T0000Z-180529T1200Z/
Chilton-Coosa-Tallapoosa-Chambers-Dallas-Autauga-Lowndes-Elmore-
Montgomery-Macon-Bullock-Lee-Russell-Pike-Barbour-
Including the cities of Clanton, Rockford, Alexander City, 
Dadeville, Valley, Lanett, Lafayette, Selma, Prattville, 
Fort Deposit, Hayneville, Wetumpka, Tallassee, Montgomery, 
Tuskegee, Union Springs, Auburn, Opelika, Phenix City, Troy, 
and Eufaula
1004 PM CDT Mon May 28 2018

...WIND ADVISORY REMAINS IN EFFECT UNTIL 7 AM CDT TUESDAY...

* TIMING...through early tomorrow morning.

* WINDS...of 15 to 25 mph with higher gusts. 

* IMPACTS...Large limbs and trees can fall with this wind as the 
  ground will be saturated as the stronger winds move through. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Advisory means that wind gusts of 35 mph are expected.
Winds this strong can make driving difficult...especially for
high profile vehicles. Use extra caution.

&&

$$

159 
WWUS74 KBMX 291019
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URGENT - WEATHER MESSAGE
National Weather Service Birmingham AL
519 AM CDT Tue May 29 2018

...STRONG WINDS POSSIBLE ACROSS THE EASTERN HALF OF CENTRAL
ALABAMA...

ALZ017>021-024>029-291900-
/O.EXB.KBMX.WI.Y.0010.000000T0000Z-180529T1900Z/
Blount-Etowah-Calhoun-Cherokee-Cleburne-Jefferson-Shelby-
St. Clair-Talladega-Clay-Randolph-
Including the cities of Oneonta, Gadsden, Anniston, Centre, 
Heflin, Birmingham, Hoover, Columbiana, Pelham, Alabaster, 
Pell City, Moody, Talladega, Sylacauga, Ashland, and Roanoke
519 AM CDT Tue May 29 2018

...WIND ADVISORY IN EFFECT UNTIL 2 PM CDT THIS AFTERNOON...

The National Weather Service in Birmingham has issued a Wind
Advisory, which is in effect until 2 PM CDT this afternoon. 

* TIMING...through this afternoon. 

* WINDS...of 15 to 25 mph with higher gusts.

* IMPACTS...Large limbs and trees can fall with this wind as the 
  ground will be saturated as the stronger winds move through. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Advisory means that wind gusts of 35 mph are expected.
Winds this strong can make driving difficult...especially for
high profile vehicles. Use extra caution.

&&

$$

ALZ035>038-040>050-291900-
/O.EXT.KBMX.WI.Y.0010.000000T0000Z-180529T1900Z/
Chilton-Coosa-Tallapoosa-Chambers-Dallas-Autauga-Lowndes-Elmore-
Montgomery-Macon-Bullock-Lee-Russell-Pike-Barbour-
Including the cities of Clanton, Rockford, Alexander City, 
Dadeville, Valley, Lanett, Lafayette, Selma, Prattville, 
Fort Deposit, Hayneville, Wetumpka, Tallassee, Montgomery, 
Tuskegee, Union Springs, Auburn, Opelika, Phenix City, Troy, 
and Eufaula
519 AM CDT Tue May 29 2018

...WIND ADVISORY NOW IN EFFECT UNTIL 2 PM CDT THIS AFTERNOON...

* TIMING...through early tomorrow morning.

* WINDS...of 15 to 25 mph with higher gusts.

* IMPACTS...Large limbs and trees can fall with this wind as the 
  ground will be saturated as the stronger winds move through. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Advisory means that wind gusts of 35 mph are expected.
Winds this strong can make driving difficult...especially for
high profile vehicles. Use extra caution.

&&

$$

Area Forecast Discussion
National Weather Service Birmingham AL
1216 AM CDT Mon May 28 2018

.UPDATE...
For 06Z Aviation.

&&

.SYNOPSIS...

Synoptic Analysis:
GOES-R moisture channel imagery along with global numerical model
depictions align well with an amplifying pattern over the country
with a potent upper low over Nevada and into Utah with a narrow
corridor of deepening ridging across much of Texas into eastern
Nebraska while closer to home the upper level troughing has become
enlarged with lower heights present over the central Gulf of
Mexico, associated with Subtropical Storm Alberto. Weaker mid
layer ridging exists near the Bahamas and extends further south
over the western Caribbean Sea.

Toward the surface, high pressure over the southwest Atlantic
continues to support a southeast to easterly flow across the
southeast while the National Hurricane Center analyzes the center
of Alberto over the southeast Gulf of Mexico. To the west, weak
high pressure was present across eastern Plains while multiple
centers of lower pressure were analyzed across the southern and
central Rockies.

Mesoscale Analysis:
GOES-R, NEXRAD and surface analysis data reveals the presence of
three low to mid level boundaries that are drifting northwest
across the forecast area this morning. The first boundary extended
from western Calhoun County and extended southwest into southern
Jefferson County and stretched southwest into northern Hale
County. Another boundary extended from northern Randolph County
southwest into central Dallas County. The third boundary was
located across northern Lee County and extended southwest through
central Montgomery County.

Sounding Discussion:
The 27/12Z BMX sounding contained a fairly uniform profile through
the vertical column that is resulting in a precipitable water
(PWAT) value of 1.77 inches. The absence of any notable dry layers
aloft along with low-level easterlies and gradual veering winds
higher aloft highlights the growing tropical influence the
atmosphere is experiencing with the approach of Alberto. Wind
speeds remain light from the surface aloft to around 350 mb with
values generally at or less than 10 knots. Further aloft winds do
increase to around 35 knots near 250 mb. The modified observed
sounding for afternoon forecast high temperatures yields a surface
based convective available potential energy value near 2300 J/kg
with a lifted index of -6.

05

&&

.SHORT TERM...

With the presence of low and mid level boundaries across our
southeast counties and with the uniform northwest movement, have
opted to nudge PoP's upward across our southeast, east-central and
south-central counties to 18Z. Light showers already are detected
by RADAR extending from Lee County southwest to near Montgomery
and into southern Lowndes County.

The further moistening vertical levels in the atmosphere are
helping to further reduce the risk of wet microbursts with a very
low risk across our forecast area this afternoon. Updraft strength
is expected to be less which will reduce the potential of strong
storms along with an expected reduction in the occurrence of
lightning activity, especially south and east. The primary concern
with the heavier convection will be localized flash flooding,
especially in urban and poor drainage areas as relatively slow
storm motions coupled with high PWAT values will support
torrential tropical downpours.

05

Revised previous short-term discussion:Today and Tonight.

There will likely be two areas of enhanced rain chances this
afternoon. A mid level trof axis with higher moisture will provide
enhanced conditions for thunderstorms across the northwest
counties of Central Alabama. Steering level winds will be fairly
light across this area, and potential exists for localized heavy
rainfall with slow moving storms. The other area will be across
the southeast counties where the first wave of showers and
isolated thunderstorms associated with Alberto will occur, and
carried likely rain chances for areas south of I-85. A band of
mostly showers will set-up over southeast Alabama early this
evening and gradually shift northward towards I-20 as Alberto
approaches the coastline.

58/rose

.LONG TERM...
Monday through Saturday.

The main focus continues to be on Alberto. Overall not much has
changed in the progression and synoptic pattern that will help guide
Alberto toward the gulf coast. The west coast trough will finally
kick the closed upper low out of the Rockies and into the high
Plains on Monday into Tuesday. Until that trough can make it closer
to the region, we are going to remain on the outer edge of the
Bermuda High with the south/southeast flow continuing to provide
very rich moisture ahead of the arrival of Alberto. At the same time
Alberto will be interacting with and trough to its west which should
keep the overall track on path. Rain chances remain high for this
time of the year, as the pattern will not really change much at all
until the trough passes through our area by Wednesday night, finally
getting rid of the tropical airmass. This pattern change will place
the airmass that is currently over the southern Plains to work into
the area. This will provide fairly warm temperatures (mid 90s) once
again. This also puts Central Alabama in an overall NW flow aloft,
and could result in multiple rounds of MCS systems each night,
depending on what develops to our north. More on that once we get
through with Alberto.

So after speaking with NHC and dissecting the model trends, we are
fairly confident on the overall timing of Alberto and rain chances
based on the track of the system. The consensus of the models take
the center near Destin, while then taking the center further north
and west (generally along the I-65 corridor) during the day Tuesday
and possibly exiting by Tuesday night. Look for the center of the
low to then become absorbed by the trough on Wednesday, resulting in
front moving westward through the area.

So to the specifics on impacts from Alberto. With the eastward
progression of the storm track the heaviest rains may miss the
extreme southwest. The strongest winds will likely make it into the
southern areas between 7 and 10 pm Monday night and only be around
25 to 35 mph with higher gusts (depression strength). These winds
will likely move north during the day Tuesday, all the while
weakening as the system moves north. Flooding and strong winds
remain the primary threat but there is a marginal chance at a brief
spin up tornado in the southeast Monday night into Tuesday as the
system moves on shore with banding on the northeast side of the low.
While the heavy rains could produce flooding, not as confident of
widespread flooding so will not issue a flash flood watch at this
time. On a whole we are looking at 2 to 4 inches of rain area wide,
with areas in the east seeing 4 to 6 inches and locally higher
totals.  Much more on this system over the coming 24 to 48 hours.

16

&&

.AVIATION...
06Z TAF Discussion.

Rain with only isolated embedded thunderstorm will be noted as our
airmass becomes ever more tropical. Coverage will become more
widespread across Central Alabama as Alberto nears the Gulf Coast.
Also, winds will continue to increase as the system approaches
with strong sustained and gusty winds possible starting in the
afternoon on Monday especially at MGM/TOI. Cigs will lower tonight
with more rain bands moving in and go to MVFR, going down to IFR
during the morning for a several hours at some locales, then back
up to MVFR for much of the rest of Monday.

08

&&

.FIRE WEATHER...

A moist pattern is expected through at least midweek, with a drier
and warmer trend for Thursday through the weekend. Best rain
chances will be through Wednesday, with heavy rainfall associated
with the tropical moisture from Alberto on Monday and Tuesday. A
northwest flow for the end of period may result in scattered
showers during the evening and morning hours. Patchy fog and low
clouds will be possible this morning and Monday morning, but will
be limited Tuesday and Wednesday mornings with the stronger winds.
No fire weather concerns at this time.

&&

.PRELIMINARY POINT TEMPS/POPS...
Gadsden     82  69  78  69  83 /  60  90 100  70  60
Anniston    82  70  80  69  83 /  70  90 100  70  70
Birmingham  83  71  80  71  86 /  70  90 100  70  60
Tuscaloosa  84  71  82  71  88 /  70  90  90  60  60
Calera      83  70  80  70  85 /  80  90  90  70  60
Auburn      80  70  79  69  82 /  80  90  90  70  70
Montgomery  83  72  83  72  86 /  90 100  80  70  70
Troy        82  70  82  71  85 /  90 100  80  70  70

&&

.BMX WATCHES/WARNINGS/ADVISORIES/...
None.

&&

Hazardous Weather Outlook
National Weather Service Birmingham AL
815 PM CDT Sun May 27 2018

ALZ011>015-017>050-290415-
Marion-Lamar-Fayette-Winston-Walker-Blount-Etowah-Calhoun-Cherokee-
Cleburne-Pickens-Tuscaloosa-Jefferson-Shelby-St. Clair-Talladega-
Clay-Randolph-Sumter-Greene-Hale-Perry-Bibb-Chilton-Coosa-Tallapoosa-
Chambers-Marengo-Dallas-Autauga-Lowndes-Elmore-Montgomery-Macon-
Bullock-Lee-Russell-Pike-Barbour-
815 PM CDT Sun May 27 2018

This Hazardous Weather Outlook is for the counties served by the
National Weather Service office in Birmingham.

.DAY ONE...Today and Tonight.

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

Alberto is forecast to make landfall in the Florida panhandle on
Monday and move into south Alabama Monday night. Isolated brief
tornadoes are possible across areas mainly east of Interstate 65 and
south of Interstate 20 Monday through early Tuesday. The current
track takes the center of Alberto northward near the Interstate 65
corridor through Tuesday. Localized flooding is also possible Monday
and Tuesday for areas mainly near and east of Interstate 65.

The strongest sustained winds from Alberto will be across areas
along and south of Interstate 85 Monday night. Sustained winds of
15 to 30 MPH are possible with higher gusts, and a wind advisory may
be required. Winds should be lower across the remainder of Central
Alabama, but could be gusty at times.

Expected rainfall with the track of Alberto will produce minor
flooding along Catoma Creek on Wednesday. Please refer to river
statements for specific details.

Any change in the track of Alberto will make significant changes in
the threat areas, and local forecasts and outlooks should be
monitored closely for the latest information.

.SPOTTER INFORMATION STATEMENT...

Activation of storm spotters and emergency management may be
required Monday and into Tuesday.