Alert archive / Florida / Coastal Flood Advisories in 2021

Coastal Flood Advisory 4, NWS Mobile, AL

August 15, 2021Baldwin County, Mobile County, Alabama; Escambia County, Okaloosa County, Santa Rosa County, Florida

NWS Mobile, AL issued this coastal flood advisory at Aug 15, 2021, 5:18 AM CDT for Baldwin County, Mobile County, Alabama; Escambia County, Okaloosa County, Santa Rosa County, Florida. It took effect at Aug 15, 2021, 7:00 PM CDT. It was in force for 27 hr.

The area

The counties it named.

The facts

Issued
Aug 15, 2021, 5:18 AM CDT (10:18 UTC)
In effect from
Aug 15, 2021, 7:00 PM CDT
Expired
Aug 16, 2021, 9:57 PM CDT
In force
27 hr
Issued by
NWS Mobile, AL

Counties Baldwin County, AL, Mobile County, AL, Escambia County, FL, Okaloosa County, FL, Santa Rosa County, FL

The radar

The Mobile radar (KMOB), 82 km from the middle of the area, began a volume at 10:19 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 00:00Z, 10.3 hours before the alert went out and 227 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Slidell Radar S, LA at 00:00Z on 2021-08-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 849 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Slidell Radar S, LA at 00:00Z on 2021-08-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 8 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
849 J/kg
Mixed-layer CIN
-22 J/kg
Mixed-layer LCL
1405 m above ground
0-6 km bulk shear
5 kt
0-1 km storm-relative helicity
8 m²/s²
0-3 km storm-relative helicity
9 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

615 
WHUS44 KMOB 151018
CFWMOB

Coastal Hazard Message
National Weather Service Mobile AL
518 AM CDT Sun Aug 15 2021

FLZ202-204-206-151830-
/O.NEW.KMOB.SU.W.0002.210816T1800Z-210817T1100Z/
/O.NEW.KMOB.CF.Y.0004.210816T0000Z-210817T1800Z/
/O.EXT.KMOB.SU.Y.0010.210816T0000Z-210816T1800Z/
/O.CON.KMOB.RP.S.0021.210816T0000Z-210818T1100Z/
Escambia Coastal-Santa Rosa Coastal-Okaloosa Coastal-
518 AM CDT Sun Aug 15 2021

...COASTAL FLOOD ADVISORY IN EFFECT FROM 7 PM THIS EVENING TO
1 PM CDT TUESDAY...
...HIGH SURF ADVISORY NOW IN EFFECT FROM 7 PM THIS EVENING TO
1 PM CDT MONDAY...
...HIGH RIP CURRENT RISK REMAINS IN EFFECT FROM THIS EVENING
THROUGH LATE TUESDAY NIGHT...
...HIGH SURF WARNING IN EFFECT FROM 1 PM MONDAY TO 6 AM CDT
TUESDAY...

* WHAT...For the High Surf Warning, dangerously large breaking
  waves of 10 to 15 feet can be expected in the surf zone. For 
  the High Surf Advisory, large breaking waves of 5 to 8 feet 
  expected in the surf zone. For the Coastal Flood Advisory, minor
  coastal flooding expected. For the High Rip Current Risk, 
  dangerous rip currents expected.

* WHERE...Escambia Coastal, Santa Rosa Coastal and Okaloosa 
  Coastal Counties.

* WHEN...For the High Surf Warning, from 1 PM Monday to 6 AM CDT 
  Tuesday. For the High Surf Advisory, from 7 PM this evening to 
  1 PM CDT Monday. For the Coastal Flood Advisory, from 7 PM 
  this evening to 1 PM CDT Tuesday. For the High Rip Current 
  Risk, from this evening through late Tuesday night.

* IMPACTS...Flooding of lots, parks, and roads with only 
  isolated road closures expected. Breaking waves can sweep 
  people off jetties and docks, and into dangerous seas. Life-
  threatening swimming conditions and significant beach erosion 
  can be expected. Rip currents can sweep even the best swimmers 
  away from shore into deeper water.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If travel is required, allow extra time as some roads may be
closed. Do not drive around barricades or through water of
unknown depth. Take the necessary actions to protect flood-prone
property.

Everyone should remain out of the water due to life-threatening
surf conditions. Stay off of jetties, piers, and other waterside
infrastructure.

Swim near a lifeguard. If caught in a rip current, relax and
float. Don't swim against the current. If able, swim in a
direction following the shoreline. If unable to escape, face the
shore and call or wave for help.

&&

$$

ALZ265-266-151830-
/O.NEW.KMOB.CF.Y.0004.210816T0000Z-210817T1800Z/
/O.CON.KMOB.SU.Y.0010.210816T0000Z-210817T1100Z/
/O.CON.KMOB.RP.S.0021.210816T0000Z-210818T1100Z/
Mobile Coastal-Baldwin Coastal-
518 AM CDT Sun Aug 15 2021

...COASTAL FLOOD ADVISORY IN EFFECT FROM 7 PM THIS EVENING TO
1 PM CDT TUESDAY...
...HIGH SURF ADVISORY REMAINS IN EFFECT FROM 7 PM THIS EVENING TO
6 AM CDT TUESDAY...
...HIGH RIP CURRENT RISK REMAINS IN EFFECT FROM THIS EVENING
THROUGH LATE TUESDAY NIGHT...

* WHAT...For the High Surf Advisory, large breaking waves of 5 to
  8 feet expected in the surf zone. For the Coastal Flood 
  Advisory, minor coastal flooding expected. For the High Rip 
  Current Risk, dangerous rip currents expected.

* WHERE...Mobile Coastal and Baldwin Coastal Counties.

* WHEN...For the High Surf Advisory, from 7 PM this evening to 6 
  AM CDT Tuesday. For the Coastal Flood Advisory, from 7 PM this 
  evening to 1 PM CDT Tuesday. For the High Rip Current Risk, 
  from this evening through late Tuesday night.

* IMPACTS...Flooding of lots, parks, and roads with only 
  isolated road closures expected. Dangerous swimming and 
  surfing conditions and localized beach erosion. Rip currents 
  can sweep even the best swimmers away from shore into deeper 
  water.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If travel is required, allow extra time as some roads may be
closed. Do not drive around barricades or through water of
unknown depth. Take the necessary actions to protect flood-prone
property.

Inexperienced swimmers should remain out of the water due to
dangerous surf conditions.

Swim near a lifeguard. If caught in a rip current, relax and
float. Don't swim against the current. If able, swim in a
direction following the shoreline. If unable to escape, face the
shore and call or wave for help.

&&

$$
7 follow-up statements
493 
WHUS44 KMOB 151531
CFWMOB

Coastal Hazard Message
National Weather Service Mobile AL
1031 AM CDT Sun Aug 15 2021

FLZ202-204-206-152345-
/O.CON.KMOB.SU.W.0002.210816T1800Z-210817T1100Z/
/O.CON.KMOB.CF.Y.0004.210816T0000Z-210817T1800Z/
/O.CON.KMOB.SU.Y.0010.210816T0000Z-210816T1800Z/
/O.CON.KMOB.RP.S.0021.210816T0000Z-210818T1100Z/
Escambia Coastal-Santa Rosa Coastal-Okaloosa Coastal-
1031 AM CDT Sun Aug 15 2021

...COASTAL FLOOD ADVISORY REMAINS IN EFFECT FROM 7 PM THIS
EVENING TO 1 PM CDT TUESDAY...
...HIGH SURF ADVISORY REMAINS IN EFFECT FROM 7 PM THIS EVENING TO
1 PM CDT MONDAY...
...HIGH RIP CURRENT RISK REMAINS IN EFFECT FROM 7 PM CDT THIS
EVENING THROUGH LATE TUESDAY NIGHT...
...HIGH SURF WARNING REMAINS IN EFFECT FROM 1 PM MONDAY TO 6 AM
CDT TUESDAY...

* WHAT...For the High Surf Warning, dangerously large breaking
  waves of 10 to 15 feet expected in the surf zone. For the High
  Surf Advisory, large breaking waves of 5 to 8 feet expected in 
  the surf zone. For the Coastal Flood Advisory, minor coastal 
  flooding expected. For the High Rip Current Risk, dangerous rip 
  currents expected.

* WHERE...Santa Rosa Coastal, Okaloosa Coastal and Escambia 
  Coastal Counties.

* WHEN...For the High Surf Warning, from 1 PM Monday to 6 AM CDT 
  Tuesday. For the High Surf Advisory, from 7 PM this evening to 
  1 PM CDT Monday. For the Coastal Flood Advisory, from 7 PM 
  this evening to 1 PM CDT Tuesday. For the High Rip Current 
  Risk, from 7 PM CDT this evening through late Tuesday night.

* IMPACTS...Flooding of lots, parks, and roads with only 
  isolated road closures expected. Breaking waves can sweep 
  people off jetties and docks, and into dangerous seas. Life-
  threatening swimming conditions and significant beach erosion 
  can be expected. Rip currents can sweep even the best swimmers 
  away from shore into deeper water.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If travel is required, allow extra time as some roads may be
closed. Do not drive around barricades or through water of
unknown depth. Take the necessary actions to protect flood-prone
property.

Everyone should remain out of the water due to life-threatening
surf conditions. Stay off of jetties, piers, and other waterside
infrastructure.

Swim near a lifeguard. If caught in a rip current, relax and
float. Don't swim against the current. If able, swim in a
direction following the shoreline. If unable to escape, face the
shore and call or wave for help.

&&

$$

ALZ265-266-152345-
/O.CON.KMOB.CF.Y.0004.210816T0000Z-210817T1800Z/
/O.CON.KMOB.SU.Y.0010.210816T0000Z-210817T1100Z/
/O.CON.KMOB.RP.S.0021.210816T0000Z-210818T1100Z/
Mobile Coastal-Baldwin Coastal-
1031 AM CDT Sun Aug 15 2021

...COASTAL FLOOD ADVISORY REMAINS IN EFFECT FROM 7 PM THIS
EVENING TO 1 PM CDT TUESDAY...
...HIGH SURF ADVISORY REMAINS IN EFFECT FROM 7 PM THIS EVENING TO
6 AM CDT TUESDAY...
...HIGH RIP CURRENT RISK REMAINS IN EFFECT FROM 7 PM CDT THIS
EVENING THROUGH LATE TUESDAY NIGHT...

* WHAT...For the High Surf Advisory, large breaking waves of 5 to
  8 feet expected in the surf zone. For the Coastal Flood 
  Advisory, minor coastal flooding expected. For the High Rip 
  Current Risk, dangerous rip currents expected.

* WHERE...Baldwin Coastal and Mobile Coastal Counties.

* WHEN...For the High Surf Advisory, from 7 PM this evening to 6 
  AM CDT Tuesday. For the Coastal Flood Advisory, from 7 PM this 
  evening to 1 PM CDT Tuesday. For the High Rip Current Risk, 
  from 7 PM CDT this evening through late Tuesday night.

* IMPACTS...Flooding of lots, parks, and roads with only 
  isolated road closures expected. Dangerous swimming and 
  surfing conditions and localized beach erosion. Rip currents 
  can sweep even the best swimmers away from shore into deeper 
  water.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If travel is required, allow extra time as some roads may be
closed. Do not drive around barricades or through water of
unknown depth. Take the necessary actions to protect flood-prone
property.

Inexperienced swimmers should remain out of the water due to
dangerous surf conditions.

Swim near a lifeguard. If caught in a rip current, relax and
float. Don't swim against the current. If able, swim in a
direction following the shoreline. If unable to escape, face the
shore and call or wave for help.

&&

$$
095 
WHUS44 KMOB 152147
CFWMOB

Coastal Hazard Message
National Weather Service Mobile AL
447 PM CDT Sun Aug 15 2021

FLZ202-204-206-160600-
/O.CON.KMOB.SU.W.0002.210816T1800Z-210817T1100Z/
/O.CON.KMOB.CF.Y.0004.210816T0000Z-210817T1800Z/
/O.CON.KMOB.SU.Y.0010.210816T0000Z-210816T1800Z/
/O.CON.KMOB.RP.S.0021.210816T0000Z-210818T1100Z/
Escambia Coastal-Santa Rosa Coastal-Okaloosa Coastal-
447 PM CDT Sun Aug 15 2021

...COASTAL FLOOD ADVISORY REMAINS IN EFFECT UNTIL 1 PM CDT
TUESDAY...
...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 1 PM CDT MONDAY...
...HIGH RIP CURRENT RISK REMAINS IN EFFECT THROUGH LATE TUESDAY
NIGHT...
...HIGH SURF WARNING REMAINS IN EFFECT FROM 1 PM MONDAY TO 6 AM
CDT TUESDAY...

* WHAT...For the High Surf Warning, dangerously large breaking
  waves of 8 to 10 feet expected in the surf zone. For the High
  Surf Advisory, large breaking waves of at least 5 to 8 feet 
  expected in the surf zone. For the Coastal Flood Advisory, minor
  coastal flooding expected. For the High Rip Current Risk, 
  dangerous rip currents expected.

* WHERE...Santa Rosa Coastal, Okaloosa Coastal and Escambia 
  Coastal Counties.

* WHEN...For the High Surf Warning, from 1 PM Monday to 6 AM CDT 
  Tuesday. For the High Surf Advisory, until 1 PM CDT Monday. 
  For the Coastal Flood Advisory, until 1 PM CDT Tuesday. For 
  the High Rip Current Risk, through late Tuesday night.

* IMPACTS...Flooding of lots, parks, and roads with only 
  isolated road closures expected. Breaking waves can sweep 
  people off jetties and docks, and into dangerous seas. Life-
  threatening swimming conditions and significant beach erosion 
  can be expected. Rip currents can sweep even the best swimmers 
  away from shore into deeper water.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If travel is required, allow extra time as some roads may be
closed. Do not drive around barricades or through water of
unknown depth. Take the necessary actions to protect flood-prone
property.

Everyone should remain out of the water due to life-threatening
surf conditions. Stay off of jetties, piers, and other waterside
infrastructure.

Swim near a lifeguard. If caught in a rip current, relax and
float. Don't swim against the current. If able, swim in a
direction following the shoreline. If unable to escape, face the
shore and call or wave for help.

&&

$$

ALZ265-266-160600-
/O.CON.KMOB.CF.Y.0004.210816T0000Z-210817T1800Z/
/O.CON.KMOB.SU.Y.0010.210816T0000Z-210817T1100Z/
/O.CON.KMOB.RP.S.0021.210816T0000Z-210818T1100Z/
Mobile Coastal-Baldwin Coastal-
447 PM CDT Sun Aug 15 2021

...COASTAL FLOOD ADVISORY REMAINS IN EFFECT UNTIL 1 PM CDT
TUESDAY...
...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 6 AM CDT TUESDAY...
...HIGH RIP CURRENT RISK REMAINS IN EFFECT THROUGH LATE TUESDAY
NIGHT...

* WHAT...For the High Surf Advisory, large breaking waves of 5 to
  8 feet expected in the surf zone. For the Coastal Flood 
  Advisory, minor coastal flooding expected. For the High Rip 
  Current Risk, dangerous rip currents expected.

* WHERE...Baldwin Coastal and Mobile Coastal Counties.

* WHEN...For the High Surf Advisory, until 6 AM CDT Tuesday. For 
  the Coastal Flood Advisory, until 1 PM CDT Tuesday. For the 
  High Rip Current Risk, through late Tuesday night.

* IMPACTS...Flooding of lots, parks, and roads with only 
  isolated road closures expected. Dangerous swimming and 
  surfing conditions and localized beach erosion. Rip currents 
  can sweep even the best swimmers away from shore into deeper 
  water.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If travel is required, allow extra time as some roads may be
closed. Do not drive around barricades or through water of
unknown depth. Take the necessary actions to protect flood-prone
property.

Inexperienced swimmers should remain out of the water due to
dangerous surf conditions.

Swim near a lifeguard. If caught in a rip current, relax and
float. Don't swim against the current. If able, swim in a
direction following the shoreline. If unable to escape, face the
shore and call or wave for help.

&&

$$
250 
WHUS44 KMOB 160626
CFWMOB

Coastal Hazard Message
National Weather Service Mobile AL
126 AM CDT Mon Aug 16 2021

FLZ202-204-206-161700-
/O.CON.KMOB.SU.W.0002.210816T1800Z-210817T1100Z/
/O.CON.KMOB.CF.Y.0004.000000T0000Z-210817T1800Z/
/O.CON.KMOB.SU.Y.0010.000000T0000Z-210816T1800Z/
/O.CON.KMOB.RP.S.0021.000000T0000Z-210818T1100Z/
Escambia Coastal-Santa Rosa Coastal-Okaloosa Coastal-
126 AM CDT Mon Aug 16 2021

...COASTAL FLOOD ADVISORY REMAINS IN EFFECT UNTIL 1 PM CDT
TUESDAY...
...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 1 PM CDT THIS
AFTERNOON...
...HIGH RIP CURRENT RISK REMAINS IN EFFECT THROUGH LATE TUESDAY
NIGHT...
...HIGH SURF WARNING REMAINS IN EFFECT FROM 1 PM THIS AFTERNOON
TO 6 AM CDT TUESDAY...

* WHAT...For the High Surf Warning, dangerously large breaking 
  waves of 8 to 10 feet expected in the surf zone. For the High 
  Surf Advisory, large breaking waves of at least 5 to 8 feet 
  expected in the surf zone. For the Coastal Flood Advisory, 
  minor coastal flooding expected. For the High Rip Current 
  Risk, dangerous rip currents expected.

* WHERE...Santa Rosa Coastal, Okaloosa Coastal and Escambia 
  Coastal Counties.

* WHEN...For the High Surf Warning, from 1 PM Monday to 6 AM CDT 
  Tuesday. For the High Surf Advisory, until 1 PM CDT Monday. 
  For the Coastal Flood Advisory, until 1 PM CDT Tuesday. For 
  the High Rip Current Risk, through late Tuesday night.

* IMPACTS...Flooding of lots, parks, and roads with only 
  isolated road closures expected. Breaking waves can sweep 
  people off jetties and docks, and into dangerous seas. Life- 
  threatening swimming conditions and significant beach erosion 
  can be expected. Rip currents can sweep even the best swimmers 
  away from shore into deeper water.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If travel is required, allow extra time as some roads may be
closed. Do not drive around barricades or through water of
unknown depth. Take the necessary actions to protect flood-prone
property.

Everyone should remain out of the water due to life-threatening
surf conditions. Stay off of jetties, piers, and other waterside
infrastructure.

Swim near a lifeguard. If caught in a rip current, relax and
float. Don't swim against the current. If able, swim in a
direction following the shoreline. If unable to escape, face the
shore and call or wave for help.

&&

$$

ALZ265-266-161700-
/O.CON.KMOB.CF.Y.0004.000000T0000Z-210817T1800Z/
/O.CON.KMOB.SU.Y.0010.000000T0000Z-210817T1100Z/
/O.CON.KMOB.RP.S.0021.000000T0000Z-210818T1100Z/
Mobile Coastal-Baldwin Coastal-
126 AM CDT Mon Aug 16 2021

...COASTAL FLOOD ADVISORY REMAINS IN EFFECT UNTIL 1 PM CDT
TUESDAY...
...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 6 AM CDT TUESDAY...
...HIGH RIP CURRENT RISK REMAINS IN EFFECT THROUGH LATE TUESDAY
NIGHT...

* WHAT...For the High Surf Advisory, large breaking waves of 5 
  to 8 feet expected in the surf zone. For the Coastal Flood 
  Advisory, minor coastal flooding expected. For the High Rip 
  Current Risk, dangerous rip currents expected.

* WHERE...Baldwin Coastal and Mobile Coastal Counties.

* WHEN...For the High Surf Advisory, until 6 AM CDT Tuesday. For 
  the Coastal Flood Advisory, until 1 PM CDT Tuesday. For the 
  High Rip Current Risk, through late Tuesday night.

* IMPACTS...Flooding of lots, parks, and roads with only 
  isolated road closures expected. Dangerous swimming and 
  surfing conditions and localized beach erosion. Rip currents 
  can sweep even the best swimmers away from shore into deeper 
  water.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If travel is required, allow extra time as some roads may be
closed. Do not drive around barricades or through water of
unknown depth. Take the necessary actions to protect flood-prone
property.

Inexperienced swimmers should remain out of the water due to
dangerous surf conditions.

Swim near a lifeguard. If caught in a rip current, relax and
float. Don't swim against the current. If able, swim in a
direction following the shoreline. If unable to escape, face the
shore and call or wave for help.

&&

$$
493 
WHUS44 KMOB 161007
CFWMOB

Coastal Hazard Message
National Weather Service Mobile AL
507 AM CDT Mon Aug 16 2021

ALZ265-266-161800-
/O.CAN.KMOB.CF.Y.0004.000000T0000Z-210817T1800Z/
/O.CON.KMOB.SU.Y.0010.000000T0000Z-210817T1100Z/
/O.CON.KMOB.RP.S.0021.000000T0000Z-210818T1100Z/
Mobile Coastal-Baldwin Coastal-
507 AM CDT Mon Aug 16 2021

...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 6 AM CDT TUESDAY...
...HIGH RIP CURRENT RISK REMAINS IN EFFECT THROUGH LATE TUESDAY
NIGHT...
...COASTAL FLOOD ADVISORY IS CANCELLED...

* WHAT...For the High Surf Advisory, large breaking waves of 5 to
  7 feet expected in the surf zone. For the High Rip Current 
  Risk, dangerous rip currents expected.

* WHERE...Baldwin Coastal and Mobile Coastal Counties.

* WHEN...For the High Surf Advisory, until 6 AM CDT Tuesday. For 
  the High Rip Current Risk, through late Tuesday night.

* IMPACTS...Dangerous swimming and surfing conditions and 
  localized beach erosion. Rip currents can sweep even the best 
  swimmers away from shore into deeper water.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced swimmers should remain out of the water due to
dangerous surf conditions.

Swim near a lifeguard. If caught in a rip current, relax and
float. Don't swim against the current. If able, swim in a
direction following the shoreline. If unable to escape, face the
shore and call or wave for help.

&&

$$

FLZ202-204-206-161800-
/O.CON.KMOB.SU.W.0002.210816T1800Z-210817T1100Z/
/O.CON.KMOB.CF.Y.0004.000000T0000Z-210817T1800Z/
/O.CON.KMOB.SU.Y.0010.000000T0000Z-210816T1800Z/
/O.CON.KMOB.RP.S.0021.000000T0000Z-210818T1100Z/
Escambia Coastal-Santa Rosa Coastal-Okaloosa Coastal-
507 AM CDT Mon Aug 16 2021

...COASTAL FLOOD ADVISORY REMAINS IN EFFECT UNTIL 1 PM CDT
TUESDAY...
...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 1 PM CDT THIS
AFTERNOON...
...HIGH RIP CURRENT RISK REMAINS IN EFFECT THROUGH LATE TUESDAY
NIGHT...
...HIGH SURF WARNING REMAINS IN EFFECT FROM 1 PM THIS AFTERNOON
TO 6 AM CDT TUESDAY...

* WHAT...For the High Surf Warning, dangerously large breaking
  waves building to 7 to 9 feet in the surf zone. For the Coastal
  Flood Advisory, minor coastal flooding expected. For the High 
  Rip Current Risk, dangerous rip currents expected.

* WHERE...Santa Rosa Coastal, Okaloosa Coastal and Escambia 
  Coastal Counties.

* WHEN...For the High Surf Warning, from 1 PM Monday to 6 AM CDT 
  Tuesday. For the High Surf Advisory, until 1 PM CDT Monday. 
  For the Coastal Flood Advisory, until 1 PM CDT Tuesday. For 
  the High Rip Current Risk, through late Tuesday night.

* IMPACTS...Flooding of lots, parks, and roads with only 
  isolated road closures expected. Breaking waves can sweep 
  people off jetties and docks, and into dangerous seas. Life- 
  threatening swimming conditions and significant beach erosion 
  can be expected. Rip currents can sweep even the best swimmers 
  away from shore into deeper water.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If travel is required, allow extra time as some roads may be
closed. Do not drive around barricades or through water of
unknown depth. Take the necessary actions to protect flood-prone
property.

Everyone should remain out of the water due to life-threatening
surf conditions. Stay off of jetties, piers, and other waterside
infrastructure.

Swim near a lifeguard. If caught in a rip current, relax and
float. Don't swim against the current. If able, swim in a
direction following the shoreline. If unable to escape, face the
shore and call or wave for help.

&&

$$
993 
WHUS44 KMOB 161601
CFWMOB

Coastal Hazard Message
National Weather Service Mobile AL
1101 AM CDT Mon Aug 16 2021

FLZ202-204-206-170015-
/O.CON.KMOB.SU.W.0002.210816T1800Z-210817T1100Z/
/O.CON.KMOB.CF.Y.0004.000000T0000Z-210817T1800Z/
/O.CON.KMOB.SU.Y.0010.000000T0000Z-210816T1800Z/
/O.CON.KMOB.RP.S.0021.000000T0000Z-210818T1100Z/
Escambia Coastal-Santa Rosa Coastal-Okaloosa Coastal-
1101 AM CDT Mon Aug 16 2021

...COASTAL FLOOD ADVISORY REMAINS IN EFFECT UNTIL 1 PM CDT
TUESDAY...
...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 1 PM CDT THIS
AFTERNOON...
...HIGH RIP CURRENT RISK REMAINS IN EFFECT THROUGH LATE TUESDAY
NIGHT...
...HIGH SURF WARNING REMAINS IN EFFECT UNTIL 6 AM CDT TUESDAY...

* WHAT...For the High Surf Warning, dangerously large breaking
  waves of 7 to 9 feet expected in the surf zone. For the High
  Surf Advisory, large breaking waves of 5 to 7 feet in the surf 
  zone. For the Coastal Flood Advisory, minor coastal flooding. 
  For the High Rip Current Risk, dangerous rip currents.

* WHERE...Santa Rosa Coastal, Okaloosa Coastal and Escambia 
  Coastal Counties.

* WHEN...For the High Surf Warning, until 6 AM CDT Tuesday. For 
  the High Surf Advisory, until 1 PM CDT this afternoon. For the 
  Coastal Flood Advisory, until 1 PM CDT Tuesday. For the High 
  Rip Current Risk, through late Tuesday night.

* IMPACTS...Flooding of lots, parks, and roads with only 
  isolated road closures expected. Breaking waves can sweep 
  people off jetties and docks, and into dangerous seas. Life-
  threatening swimming conditions and significant beach erosion 
  can be expected. Rip currents can sweep even the best swimmers 
  away from shore into deeper water.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If travel is required, allow extra time as some roads may be
closed. Do not drive around barricades or through water of
unknown depth. Take the necessary actions to protect flood-prone
property.

Everyone should remain out of the water due to life-threatening
surf conditions. Stay off of jetties, piers, and other waterside
infrastructure.

Swim near a lifeguard. If caught in a rip current, relax and
float. Don't swim against the current. If able, swim in a
direction following the shoreline. If unable to escape, face the
shore and call or wave for help.

&&

$$

ALZ265-266-170015-
/O.CON.KMOB.SU.Y.0010.000000T0000Z-210817T1100Z/
/O.CON.KMOB.RP.S.0021.000000T0000Z-210818T1100Z/
Mobile Coastal-Baldwin Coastal-
1101 AM CDT Mon Aug 16 2021

...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 6 AM CDT TUESDAY...
...HIGH RIP CURRENT RISK REMAINS IN EFFECT THROUGH LATE TUESDAY
NIGHT...

* WHAT...For the High Surf Advisory, large breaking waves of 5 to
  7 feet in the surf zone. For the High Rip Current Risk, 
  dangerous rip currents.

* WHERE...Baldwin Coastal and Mobile Coastal Counties.

* WHEN...For the High Surf Advisory, until 6 AM CDT Tuesday. For 
  the High Rip Current Risk, through late Tuesday night.

* IMPACTS...Dangerous swimming and surfing conditions and 
  localized beach erosion. Rip currents can sweep even the best 
  swimmers away from shore into deeper water.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced swimmers should remain out of the water due to
dangerous surf conditions.

Swim near a lifeguard. If caught in a rip current, relax and
float. Don't swim against the current. If able, swim in a
direction following the shoreline. If unable to escape, face the
shore and call or wave for help.

&&

$$
068 
WHUS44 KMOB 162056
CFWMOB

Coastal Hazard Message
National Weather Service Mobile AL
356 PM CDT Mon Aug 16 2021

FLZ202-204-206-170500-
/O.CAN.KMOB.SU.W.0002.000000T0000Z-210817T1100Z/
/O.NEW.KMOB.SU.Y.0011.210816T2056Z-210817T1100Z/
/O.CON.KMOB.CF.Y.0004.000000T0000Z-210817T1800Z/
/O.CON.KMOB.RP.S.0021.000000T0000Z-210818T1100Z/
Escambia Coastal-Santa Rosa Coastal-Okaloosa Coastal-
356 PM CDT Mon Aug 16 2021

...HIGH SURF ADVISORY IN EFFECT UNTIL 6 AM CDT TUESDAY...
...COASTAL FLOOD ADVISORY REMAINS IN EFFECT UNTIL 1 PM CDT
TUESDAY...
...HIGH RIP CURRENT RISK REMAINS IN EFFECT THROUGH LATE TUESDAY
NIGHT...
...HIGH SURF WARNING IS CANCELLED...

* WHAT...For the Coastal Flood Advisory, minor coastal flooding.
  For the High Surf Advisory, large breaking waves of 5 to 7 feet
  in the surf zone. For the High Rip Current Risk, dangerous rip 
  currents.

* WHERE...Escambia Coastal, Santa Rosa Coastal and Okaloosa 
  Coastal Counties.

* WHEN...For the Coastal Flood Advisory, until 1 PM CDT Tuesday. 
  For the High Surf Advisory, until 6 AM CDT Tuesday. For the 
  High Rip Current Risk, through late Tuesday night.

* IMPACTS...Flooding of lots, parks, and roads with only 
  isolated road closures expected. Dangerous swimming and 
  surfing conditions and localized beach erosion. Rip currents 
  can sweep even the best swimmers away from shore into deeper 
  water.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If travel is required, allow extra time as some roads may be
closed. Do not drive around barricades or through water of
unknown depth. Take the necessary actions to protect flood-prone
property.

Inexperienced swimmers should remain out of the water due to
dangerous surf conditions.

Swim near a lifeguard. If caught in a rip current, relax and
float. Don't swim against the current. If able, swim in a
direction following the shoreline. If unable to escape, face the
shore and call or wave for help.

&&

$$

ALZ265-266-170500-
/O.CON.KMOB.SU.Y.0010.000000T0000Z-210817T1100Z/
/O.CON.KMOB.RP.S.0021.000000T0000Z-210818T1100Z/
Mobile Coastal-Baldwin Coastal-
356 PM CDT Mon Aug 16 2021

...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 6 AM CDT TUESDAY...
...HIGH RIP CURRENT RISK REMAINS IN EFFECT THROUGH LATE TUESDAY
NIGHT...

* WHAT...For the High Surf Advisory, large breaking waves of 5 to
  7 feet in the surf zone. For the High Rip Current Risk, 
  dangerous rip currents.

* WHERE...Baldwin Coastal and Mobile Coastal Counties.

* WHEN...For the High Surf Advisory, until 6 AM CDT Tuesday. For 
  the High Rip Current Risk, through late Tuesday night.

* IMPACTS...Dangerous swimming and surfing conditions and 
  localized beach erosion. Rip currents can sweep even the best 
  swimmers away from shore into deeper water.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced swimmers should remain out of the water due to
dangerous surf conditions.

Swim near a lifeguard. If caught in a rip current, relax and
float. Don't swim against the current. If able, swim in a
direction following the shoreline. If unable to escape, face the
shore and call or wave for help.

&&

$$
055 
WHUS44 KMOB 170257
CFWMOB

Coastal Hazard Message
National Weather Service Mobile AL
957 PM CDT Mon Aug 16 2021

FLZ202-204-206-171100-
/O.CAN.KMOB.CF.Y.0004.000000T0000Z-210817T1800Z/
/O.CAN.KMOB.SU.Y.0011.000000T0000Z-210817T1100Z/
/O.CON.KMOB.RP.S.0021.000000T0000Z-210818T1100Z/
Escambia Coastal-Santa Rosa Coastal-Okaloosa Coastal-
957 PM CDT Mon Aug 16 2021

...HIGH RIP CURRENT RISK REMAINS IN EFFECT THROUGH LATE TUESDAY
NIGHT...
...COASTAL FLOOD ADVISORY IS CANCELLED...
...HIGH SURF ADVISORY IS CANCELLED...

* WHAT...Dangerous rip currents.

* WHERE...Santa Rosa Coastal, Okaloosa Coastal and Escambia 
  Coastal Counties.

* WHEN...Through late Tuesday night.

* IMPACTS...Rip currents can sweep even the best swimmers away 
  from shore into deeper water.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Swim near a lifeguard. If caught in a rip current, relax and
float. Don't swim against the current. If able, swim in a
direction following the shoreline. If unable to escape, face the
shore and call or wave for help.

&&

$$

ALZ265-266-171100-
/O.CAN.KMOB.SU.Y.0010.000000T0000Z-210817T1100Z/
/O.CON.KMOB.RP.S.0021.000000T0000Z-210818T1100Z/
Mobile Coastal-Baldwin Coastal-
957 PM CDT Mon Aug 16 2021

...HIGH RIP CURRENT RISK REMAINS IN EFFECT THROUGH LATE TUESDAY
NIGHT...
...HIGH SURF ADVISORY IS CANCELLED...

* WHAT...Dangerous rip currents.

* WHERE...Baldwin Coastal and Mobile Coastal Counties.

* WHEN...Through late Tuesday night.

* IMPACTS...Rip currents can sweep even the best swimmers away 
  from shore into deeper water.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Swim near a lifeguard. If caught in a rip current, relax and
float. Don't swim against the current. If able, swim in a
direction following the shoreline. If unable to escape, face the
shore and call or wave for help.

&&

$$

What forecasters said that day

The local office's own words before this coastal flood advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Mobile, AL wrote its last area forecast discussion before this coastal flood advisory went out at Aug 15, 5:03 AM CDT, 15 minutes earlier.

Area forecast discussion, Aug 15, 5:03 AM CDT, 15 minutes before
Area Forecast Discussion
National Weather Service Mobile AL
503 AM CDT Sun Aug 15 2021

.NEAR TERM UPDATE /Now Through Monday/...A complex upper air
pattern continues to evolve across the Lower Mississippi Valley
and the Southeast through the near term. Currently, an upper level
trough extends across the Middle and Lower Mississippi Valley
this evening as an upper level low pressure just south of the
western Florida Panhandle lifts gradually northwest.

The upper level troughing over the Mississippi Valley will remain in
place today. The weakening upper level low pressure system along the
coast will continue to lift northward and wash out. Meanwhile, the
remnants of Tropical Storm Fred are forecast by most of the more
reliable global models to redevelop into a tropical cyclone over the
east central Gulf of Mexico as it gradually lifts northwest through
the day. Swell will develop in advance of Fred through the day with
seas building along with the threat of rip currents through the day.
Caution is advised if at area beaches.

Deep moisture will remain in place over the area today into tonight
and with the upper trough in place expect another round of numerous
showers and thunderstorms across the region. Seasonably hot and
humid conditions will persist with high temperatures into the lower
90s in most locations.

Showers and thunderstorms will continue Sunday night along the coast
and gradually spread inland on Monday as what is expected to be
Tropical Storm Fred continues to approach the region from the
southeast. Some heavy rains are possible into Monday, especially
across portions of the western Florida Panhandle if Fred moves along
the current forecast track. There remains some uncertainty in the
eventual track of Fred and this will have an impact on where the
greatest wind and flooding impacts will occur. Of greater confidence
for Sunday night and Monday will be the threat for life threatening
rip currents and dangerous surf conditions along the area beaches.
Beachgoers are advised to remain out of the Gulf waters as we go
into Sunday night and Monday. A High Surf Advisory and High Rip
Current Risk remain in effect beginning Sunday evening and
continuing through Monday. /JLH

&&

.SHORT TERM /Monday night Through Tuesday night/...The primary
forecast focus for the short term forecast period will be the
eventual track and intensity of Fred. There has been a gradual trend
back towards the east with the latest reliable forecast guidance.
Unfortunately there remains higher than normal uncertainty since the
low level circulation remains broad and elongated and has yet to
consolidate. Until this occurs, which is forecast by most of the
guidance, the overall track forecast is still somewhat uncertain.
This will have an impact on where the greatest hazards occur with
Fred. At this time, it appears that the most likely scenario will be
for the greatest hazards to impact eastern portions of the forecast
area to include the western Florida Panhandle into portions of south
central Alabama. These hazards will include the potential for heavy
flooding rainfall, isolated tornadoes, and the potential for
tropical storm force winds near the coast. Overall the cyclone
should remain under about 15 to 20 knots of southwesterly shear
between a building ridge over the southeast Atlantic into Florida
and the troughing over the Lower Mississippi Valley through it/s
lifecycle despite moving over warm SSTs. There is some suggestion of
enhanced diffluent flow aloft along the northern Gulf Coast with the
right entrance region of a 250mb jet streak across the western
Tennessee into the Ohio Valley. But considering the shallow nature
of the vortex and ongoing disorganization due to shear, it is
unlikely that the cyclone will be able to take advantage of this
better diffluent flow aloft. Therefore, only modest strengthening is
anticipated at this time and a stronger cyclone is very unlikely at
this time.

At this point, it appears that heavy rainfall and possible flooding
remains the greatest threat at this time across the eastern portions
of the forecast area to include portions of the western Florida
Panhandle into portions of south central Alabama. In these
locations, rainfall totals up to 6 inches locally higher may occur
in these areas. Therefore, a Flash Flood Watch will be issued for
Santa Rosa and Okaloosa counties, FL, and Covington and Crenshaw
counties, AL.

There will be coastal wind hazards along and to the east of the
center of where Fred makes landfall. There may be an isolated
tornado threat as well to the northeast of the center of the track
for Monday night into Tuesday. The most likely locations for these
hazards will be along coastal sections of the western Florida
Panhandle where a Tropical Storm Watch will be issued with this
advisory package. Finally, the threat for life threatening rip
currents and dangerous surf will continue at area beaches through at
least Tuesday night. /JLH

&&

.EXTENDED TERM /Wednesday Through Saturday/...By Wednesday, the
remnants of Fred (a weak low pressure) will have moved well inland
as upper level ridging over the western Atlantic builds back into
the Southeast and into the northern Gulf. By Thursday and Friday,
this ridging become even more expansive as it starts to build into
the northwestern Gulf, although it maintains heights generally
around 591-594dm and does not amplify much more than that. Down at
the surface, high pressure over the Atlantic also begins to extend
west over the Florida Peninsula and into the eastern Gulf. Despite
the increased subsidence, southerly flow will help to maintain
moisture across the area, with PWAT's generally between 1.6 to 2.2
inches. Scattered to numerous showers and storms can therefore be
expected each day, with convection generally following the land/sea
breeze cycle (coverage offshore overnight/early morning and
transitioning inland during the afternoon). High temperatures will
reach into the upper 80s to low 90s through the period. Meanwhile,
lows are expected to be in the low to mid 70s inland with upper 70s
to low 80s along the immediate coast.

Another feature to keep an eye on in the extended will be Tropical
Storm Grace as it is currently forecast to enter the Gulf of Mexico
by late Wednesday night. Current guidance suggests the
aforementioned ridging over the southeast will be strong enough to
keep Grace at bay and tracks it towards the western Gulf. However,
there is still quite a bit of uncertainty with where the system will
go once in the Gulf as it is so far out in time. /14

&&

.MARINE...Winds and waves increase through Monday as the remnants
of Fred advance generally northward across the Gulf towards the
area and regains tropical storm strength. Scattered to numerous
showers and thunderstorms will occur each day with accompanying
gusty squalls. Fred is forecast to make landfall in the western
Florida panhandle Monday night. For more information regarding
Fred please refer to the National Hurricane Center. /13

&&

.MOB WATCHES/WARNINGS/ADVISORIES...
AL...Flash Flood Watch from this evening through Tuesday afternoon
     for ALZ058-060.

     Tropical Storm Watch for ALZ059-060.

     Coastal Flood Advisory from 7 PM this evening to 1 PM CDT
     Tuesday for ALZ265-266.

     High Rip Current Risk from this evening through late Tuesday
     night for ALZ265-266.

     High Surf Advisory from 7 PM this evening to 6 AM CDT Tuesday
     for ALZ265-266.

FL...Flash Flood Watch from this evening through Tuesday afternoon
     for FLZ203>206.

     Tropical Storm Watch for FLZ201>206.

     Coastal Flood Advisory from 7 PM this evening to 1 PM CDT
     Tuesday for FLZ202-204-206.

     High Rip Current Risk from this evening through late Tuesday
     night for FLZ202-204-206.

     High Surf Advisory from 7 PM this evening to 1 PM CDT Monday for
     FLZ202-204-206.

     High Surf Warning from 1 PM Monday to 6 AM CDT Tuesday for
     FLZ202-204-206.

MS...None.
GM...Tropical Storm Watch for GMZ634>636-650-655-670-675.

&&

This product is also available on the web at:
http://weather.gov/mob

The office that day

Everything else NWS Mobile, AL issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 14, 7:03 PM CDTSpecial Marine WarningMOB87 min
Aug 14, 8:01 PM CDTSpecial Weather StatementMOBButler44 min
Aug 15, 2:54 AM CDTFlash Flood WatchMOBCovington, Crenshaw36 hr
Aug 15, 10:17 AM CDTTropical Storm WarningMOBCovington36 hr
Aug 15, 10:48 AM CDTSmall Craft AdvisoryMOB35 hr
Aug 15, 1:30 PM CDTSpecial Marine WarningMOB60 min
Aug 15, 1:55 PM CDTSpecial Weather StatementMOBClarke50 min
Aug 15, 2:49 PM CDTSpecial Marine WarningMOB31 min
Aug 15, 3:53 PM CDTSpecial Weather StatementMOBMobile52 min
Aug 15, 5:50 PM CDTSpecial Weather StatementMOBClarke40 min
Aug 15, 6:26 PM CDTSpecial Weather StatementMOBClarke, Wilcox49 min
Aug 15, 6:32 PM CDTAreal Flood AdvisoryMOBClarke, Monroe3 hr
Aug 15, 5:18 AM CDTHigh Surf WarningMOBEscambia, Okaloosa, Santa Rosa35 hr
Aug 15, 2:37 PM CDTSpecial Weather StatementMOBOkaloosa38 min
Aug 15, 3:26 PM CDTSpecial Weather StatementMOBSanta Rosa49 min

Nearby

Coastal Flood Advisories in Florida, 2021Coastal Flood Advisories in Alabama, 2021Every coastal flood advisory in 2021

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.