Flash Flood Warning 22, NWS Miami, FL

673 
WGUS72 KMFL 130547
FFSMFL

Flash Flood Statement
National Weather Service Miami FL
147 AM EDT Sun Sep 13 2020

FLC086-130830-
/O.CON.KMFL.FF.W.0022.000000T0000Z-200913T0830Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Miami-Dade FL-
147 AM EDT Sun Sep 13 2020

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 430 AM EDT EARLY THIS 
MORNING FOR NORTHERN MIAMI-DADE COUNTY...

At 147 AM EDT, Doppler radar and automated rain gauges indicated 
thunderstorms producing heavy rain across the warned area. Between 2 
and 3 inches of rain have fallen. Flash flooding is ongoing or 
expected to begin shortly.

HAZARD...Flash flooding caused by thunderstorms.

SOURCE...Doppler radar and automated gauges.

IMPACT...Flooding of small creeks and streams, urban areas,
         highways, streets and underpasses as well as other
         drainage and low lying areas.

Some locations that will experience flash flooding include...
  Miami, Hialeah, Miami Beach, Coral Gables, Key Biscayne, South 
  Miami, Virginia Key, Kendall, Miami Gardens, North Miami, Doral, 
  Miami Lakes, Hialeah Gardens, Pinecrest, Opa-Locka, Miami Springs, 
  Sweetwater, Miami Shores, West Miami and El Portal.

Additional rainfall amounts of 2 to 4 inches are possible in the 
warned area.

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.

&&

LAT...LON 2556 8031 2568 8036 2586 8038 2594 8032
      2595 8025 2591 8021 2586 8017 2582 8015
      2577 8014 2561 8011 2561 8012 2560 8013
      2559 8012 2555 8030

FLASH FLOOD...RADAR AND GAUGE INDICATED

$$

SPM

381 
WGUS52 KMFL 130623
FFWMFL
FLC086-131030-
/O.EXT.KMFL.FF.W.0022.000000T0000Z-200913T1030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Miami FL
223 AM EDT Sun Sep 13 2020

The National Weather Service in Miami has extended the

* Flash Flood Warning for...
  Northern Miami-Dade County in southeastern Florida...

* Until 630 AM EDT.

* At 223 AM EDT, Doppler radar and automated rain gauges indicated 
  thunderstorms producing heavy rain across the warned area. Between 
  3 and 4 inches of rain have fallen. Flash flooding is ongoing or 
  expected to begin shortly.

  HAZARD...Life threatening flash flooding. Thunderstorms
           producing flash flooding.

  SOURCE...Doppler radar and automated gauges.

  IMPACT...Life threatening flash flooding of creeks and streams,
           urban areas, highways, streets and underpasses.

* Some locations that will experience flash flooding include...
  Miami, Hialeah, Miami Beach, Coral Gables, Key Biscayne, South 
  Miami, Virginia Key, Kendall, Miami Gardens, North Miami, Doral, 
  Miami Lakes, Hialeah Gardens, Pinecrest, Opa-Locka, Miami Springs, 
  Sweetwater, Miami Shores, West Miami and El Portal.

Additional rainfall amounts of 1 to 3 inches are possible in the 
warned area.

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.

&&

LAT...LON 2556 8031 2568 8036 2586 8038 2594 8032
      2595 8025 2591 8021 2586 8017 2582 8015
      2577 8014 2561 8011 2561 8012 2560 8013
      2559 8012 2555 8030

FLASH FLOOD...RADAR AND GAUGE INDICATED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE

$$

SPM

859 
WGUS72 KMFL 130636
FFSMFL

Flash Flood Statement
National Weather Service Miami FL
236 AM EDT Sun Sep 13 2020

FLC086-131030-
/O.CON.KMFL.FF.W.0022.000000T0000Z-200913T1030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Miami-Dade FL-
236 AM EDT Sun Sep 13 2020

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 630 AM EDT THIS 
MORNING FOR NORTHERN MIAMI-DADE COUNTY...

At 236 AM EDT, Doppler radar and automated rain gauges indicated 
thunderstorms producing heavy rain across the warned area. Between 3 
and 5 inches of rain have fallen. Flash flooding is ongoing or 
expected to begin shortly.

HAZARD...Life threatening flash flooding. Thunderstorms producing
         flash flooding.

SOURCE...Doppler radar and automated gauges.

IMPACT...Life threatening flash flooding of creeks and streams,
         urban areas, highways, streets and underpasses.

Some locations that will experience flash flooding include...
  Miami, Hialeah, Miami Beach, Coral Gables, Key Biscayne, South 
  Miami, Virginia Key, Kendall, Miami Gardens, North Miami, Doral, 
  Miami Lakes, Hialeah Gardens, Pinecrest, Opa-Locka, Miami Springs, 
  Sweetwater, Miami Shores, West Miami and El Portal.

Additional rainfall amounts of 1 to 2 inches are possible in the 
warned area.

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.

&&

LAT...LON 2556 8031 2568 8036 2586 8038 2594 8032
      2595 8025 2591 8021 2586 8017 2582 8015
      2577 8014 2561 8011 2561 8012 2560 8013
      2559 8012 2555 8030

FLASH FLOOD...RADAR AND GAUGE INDICATED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE

$$

SPM

820 
WGUS72 KMFL 130900
FFSMFL

Flash Flood Statement
National Weather Service Miami FL
500 AM EDT Sun Sep 13 2020

FLC086-130909-
/O.CAN.KMFL.FF.W.0022.000000T0000Z-200913T1030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Miami-Dade FL-
500 AM EDT Sun Sep 13 2020

...THE FLASH FLOOD WARNING FOR NORTHERN MIAMI-DADE COUNTY IS
CANCELLED...

The heavy rain has ended. 

Localized minor flooding could still occur if additional rain moves 
over the area still recovering from earlier flooding. Please 
continue to heed any remaining road closures.

LAT...LON 2556 8031 2568 8036 2586 8038 2594 8032
      2595 8025 2591 8021 2586 8017 2582 8015
      2577 8014 2561 8011 2561 8012 2560 8013
      2559 8012 2555 8030

$$

AR

Area Forecast Discussion
National Weather Service Miami FL
805 PM EDT Sat Sep 12 2020

.Aviation (00Z TAFs)...
Predominately MVFR conditions across the TAF sites through the
evening, as rainbands from TS Sally move onshore. Short-fused
IFR/LIFR TEMPOs will likely be needed through the forecast period
to account for low-predictability in convective coverage/intensity.
Conditions should gradually improve overnight, though gusty
rain-bands may linger through the period. Convective coverage
should pickup around 15Z tomorrow as instability increases and
plentiful moisture lingers in TS Sally's wake.

&&

.Prev Discussion... /issued 433 PM EDT Sat Sep 12 2020/

..FlOOD WATCH IN EFFECT FOR ALL SOUTH FLORIDA TONIGHT...
..TROPICAL STORM WATCH IN EFFECT FOR GULF WATERS OF SOUTH FLORIDA...
..COASTAL FLOOD STATEMENT IN EFFECT COASTAL COLLIER COUNTY...
..HIGH RISK OF RIP CURRENTS BEACHES OF SOUTH FLORIDA...

Short Term...

Tropical Depression 19 has strengthened into Tropical Storm Sally
early this afternoon just South of Naples. NHC is forecasting
Sally to move west northwest to northwest through the eastern
Gulf of Mexico through the rest of this weekend. This will allow
for the wind flow over South Florida to be from the south to
southeast direction keeping the deep tropical moisture in place.
Therefore, showers and even a few thunderstorms will continue to
affect South Florida through tonight. On Sunday, the thunderstorm
coverage should be more in the scattered to numerous range due to
more heating especially over the east coast metro areas. However,
POPs will remain in the scattered to numerous range with even
categorical over the western areas through rest of this weekend.

With Tropical Storm Sally off the southwest coast of South
Florida this afternoon into tonight, this will put South Florida
in the favorable side of the system for a few tornadoes especially
over the western areas of South Florida. SPC has also put a Marginal
Risk of tornadoes over South Florida for Tonight.

Heavy rainfall is also possible over South Florida through at
least tonight over the western areas of South Florida on Sunday.
More on the rainfall in the hydro section below.

Long Term...

Prev Discussion... /issued 512 AM EDT Sat Sep 12 2020/

Monday through Friday...

Soggy and unsettled weather will stick around for the beginning
of the work week as deep tropical moisture is lofted across the
region in the wake of Tropical Depression 19. Sufficient
insolation will allow for the development of scattered to numerous
showers in the afternoon and evening hours. Thus, given the
likelihood of appreciable rainfall accumulations over the weekend,
the concern for localized flooding will persist for urban and
poor drainage areas.

As the system treks further into the Gulf of Mexico, southerly
flow should veer of the east, allowing for a swath of slightly
drier air to infiltrate the mid to upper levels, decreasing rain
chances by the middle of the week. However, moist, maritime air
will still exist in lower levels for routine sea breeze driven
convection to develop each afternoon. As both the Atlantic and
Gulf breezes push inland, scattered showers and thunderstorms
should develop first across the east coast and spread westward
towards the interior and west coast of South Florida through the
evening hours.

Daytime temperatures will remain rather warm in the upper 80s
near 90 along the east coast to the lower to mid 90s elsewhere.
Overnight lows will continue to be in the mid to upper 70s across
South Florida.

Marine...
The winds will remain from the southeast to south direction over
the local waters of South Florida through this weekend. Wind
speeds will remain in the 20 to 25 knot range this afternoon over
all of the waters before decreasing below 20 knots tonight,
except over the Gulf waters where they will remain in the 20 to 25
knot range. However, the wind gusts will still be 20 to 25 knots
in the Atlantic waters and Biscayne bay until 06Z and the wind
gusts in the Gulf waters could get up into tropical storm
conditions.

The Atlantic seas will also remain at 2 to 4 feet through tonight
before decreasing to 2 feet for Sunday into early next week. The
Gulf Seas will be 3 to 5 feet tonight before slowly decreasing to
2 feet or less by Sunday night. There will also be a small swell
of 1 to 2 feet over the Gulf side through tonight. Therefore, an
SCA will remain in all of South Florida waters through this
evening, before dropping off in Lake Okeechobee tonight and after
midnight for the Atlantic and Biscayne Bay waters.

Beach Forecast...
The breezy to windy south to southwest winds along the coastal
areas of South Florida will allow for the risk of rip currents
along the beaches of South Florida. Therefore, a High Risk of Rip
Currents is in effect for both the east and west coast beaches of
South Florida through Sunday.

There is also a Coastal Flood Statement for Collier County for
tonight.

&&

Hydrology...
The PWAT values have been in the 2.4 to 2.6 inch range over South
Florida today and the short range models continue to show the
PWAT values remaining in the 2.3 to 2.6 inch range over South
Florida tonight. The PWAT values are then forecast to decrease a
little bit over the east coast metro areas on Sunday to around 2
to 2.2 inches while the western areas remain in the 2.3 to 2.6
inch range. These PWAT values are running at the maximum or even
above the maximum values for this time of year which is around
2.5 inches.

The latest storm totals from the AMX radar is also showing 12 to
14 inches of rain has fallen near the Florida Keys with the
training of the showers and thunderstorms so far today. If any
training showers and thunderstorms set up over South Florida
tonight, that there could be flooding over the area, and over the
west coast metro areas on Sunday.

The Weather Prediction Center (WPC) has also put the metro areas
of South Florida in a Slight Risk of Flooding and a Marginal Risk
of Flooding over rest of South Florida for today. On Sunday, WPC
put the west coast metro areas in a Slight Risk with the interior
areas in a Marginal Risk of flooding.

The grounds are also saturated due to the last several days of
heavy rainfall over South Florida. Therefore, a Flood Watch
continues over the eastern areas of South Florida through tonight
and been extended in time until Sunday evening for the western
areas of South Florida.
&&

.Preliminary Point Temps/PoPs...
West Palm Beach  85  79  89  78 /  70  50  60  20
Fort Lauderdale  84  80  88  79 /  80  50  60  30
Miami            84  79  89  78 /  80  50  60  30
Naples           86  77  87  75 /  90  80  80  60

&&

.MFL WATCHES/WARNINGS/ADVISORIES...
FL...Flood Watch through Sunday morning for FLZ067-068-071>074-168-
     172>174.

     Flood Watch through Sunday evening for FLZ063-066-069-070-075.

     High Rip Current Risk through Sunday evening for FLZ069-168-172-
     173.

AM...Small Craft Advisory until 2 AM EDT Sunday for AMZ630-650-651-
     670-671.

     Small Craft Advisory until 8 PM EDT this evening for AMZ610.

GM...Small Craft Advisory until 8 AM EDT Sunday for GMZ656-657-676.

     Tropical Storm Watch for GMZ656-657-676.

&&

Update...54/BNB
Marine...54/BNB
Aviation...09/Bhatti

Short Term...54/BNB
Long Term...11/HVN

Hazardous Weather Outlook for South Florida
National Weather Service Miami FL
649 PM EDT Sat Sep 12 2020

AMZ610-630-650-651-670-671-FLZ063-066>075-168-172>174-GMZ656-657-676-
131100-
Lake Okeechobee-Biscayne Bay-
Coastal waters from Jupiter Inlet to Deerfield Beach FL out 20 NM-
Coastal waters from Deerfield Beach to Ocean Reef FL out 20 NM-
Waters from Jupiter Inlet to Deerfield Beach FL from 20 to 60 NM-
Waters from Deerfield Beach to Ocean Reef FL from 20 to 60 NM
excluding the territorial waters of Bahamas-Glades-Hendry-
Inland Palm Beach-Metro Palm Beach-Coastal Collier-Inland Collier-
Inland Broward-Metro Broward-Inland Miami-Dade-Metro Miami-Dade-
Mainland Monroe-Coastal Palm Beach-Coastal Broward-Coastal Miami-
Dade-Far South Miami-Dade-
Coastal waters from Chokoloskee to Bonita Beach FL out 20 NM-
Coastal waters from East Cape Sable to Chokoloskee FL out 20 NM-
Waters from Chokoloskee to Bonita Beach FL from 20 to 60 NM-
649 PM EDT Sat Sep 12 2020

...Flooding Possible Tonight Especially Gulf/Atlantic Coastal
Areas...
...Hazardous Marine and Beach Conditions Expected...

This hazardous weather outlook is for South Florida.

.DAY ONE...TONIGHT

Thunderstorms: A few thunderstorms are possible tonight. A severe
thunderstorm is possible.

Flooding: Heavy rainfall over wet ground may lead to an enhanced risk
for flooding, especially along the Gulf Coast and over the east coast
metro areas. A Flood Watch is in effect. In addition, Coastal
Flooding is possible over Collier County due to the combination of
high tides and excessive rainfall.

Wind: The strongest storms could produce wind gusts in excess of 50
mph.

Tornadoes: Isolated tornadoes are possible.

Waterspouts: Isolated waterspouts are expected over the local waters.

Rip Currents: there is a high risk of rip currents for all Atlantic
beaches through this evening.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

Periods of heavy rainfall and gusty winds will occur through the
Sunday as Tropical Storm Sally moves away from the area. This will
result in flooding potential, especially for urban and low lying
areas.

Hazardous marine and beach conditions are likely to continue into
early next week.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not anticipated. However, please relay any
information about observed flooding and severe weather to the NWS
while following all local, state, and CDC guidelines.

For more information...visit the National Weather Service in
Miami website at www.weather.gov/miami.

Special Weather Statement
National Weather Service Miami FL
906 PM EDT Sat Sep 12 2020

FLZ069-070-130200-
Coastal Collier County FL-Inland Collier County FL-
906 PM EDT Sat Sep 12 2020

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN COLLIER COUNTY UNTIL
1000 PM EDT...

* At 906 PM EDT, National Weather Service meteorologists were
  tracking a strong thunderstorm near Naples Park, or near Bonita
  Springs, moving northwest at 35 mph.

* Winds in excess of 45 mph and funnel clouds possible with this
  storm.

* Locations impacted include...
  Naples, Marco Island, Golden Gate Estates, Everglades City, Cape
  Romano, Belle Meade, Golden Gate, East Naples, Lely Resort,
  Vineyards, Royal Palm Hammock, Naples Park, Marco Island Airport,
  Naples Manor, West Toll Gate On Alligator Alley, North Naples,
  Pelican Bay, Lely, Rookery Bay Aquatic Preserve and Fiddlers Creek.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

These winds can down small tree limbs and branches, and blow around
unsecured small objects. Seek shelter in a safe building until the
storm passes.

This activity was also developing in an environment favorable for the
formation of funnel clouds. Stay tuned to NOAA weather radio and
local media for additional updates and possible warnings.

To report severe weather, contact your nearest law enforcement
agency. You can also share your report with NWS Miami on Facebook and
Twitter.

&&

LAT...LON 2633 8184 2633 8182 2632 8182 2632 8166
      2580 8136 2580 8159 2581 8161 2580 8163
      2580 8174 2600 8184
TIME...MOT...LOC 0106Z 149DEG 29KT 2629 8176

CWC

Special Weather Statement
National Weather Service Miami FL
930 PM EDT Sat Sep 12 2020

FLZ067-068-072-168-172-130230-
Coastal Broward County FL-Coastal Palm Beach County FL-
Metro Broward County FL-Inland Palm Beach County FL-
Metro Palm Beach County FL-
930 PM EDT Sat Sep 12 2020

...SIGNIFICANT WEATHER ADVISORY FOR NORTHERN BROWARD AND EASTERN PALM
BEACH COUNTIES UNTIL 1030 PM EDT...

* At 930 PM EDT, National Weather Service meteorologists were
  tracking a strong thunderstorm over Highland Beach, moving
  northwest at 30 mph.

* Winds in excess of 45 mph and funnel clouds possible with this
  storm.

* Locations impacted include...
  West Palm Beach, Boca Raton, Deerfield Beach, Boynton Beach, Delray
  Beach, Wellington, Jupiter, Palm Beach Gardens, Lake Worth, Riviera
  Beach, Palm Beach, Tequesta, Highland Beach, Juno Beach, Ocean
  Ridge, Coconut Creek, Greenacres, Royal Palm Beach, Parkland and
  Palm Springs.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Torrential rainfall is also occurring with this storm, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

This activity was also developing in an environment favorable for the
formation of funnel clouds. Stay tuned to NOAA weather radio and
local media for additional updates and possible warnings.

To report severe weather, contact your nearest law enforcement
agency. You can also share your report with NWS Miami on Facebook and
Twitter.

&&

LAT...LON 2630 8003 2630 8022 2696 8052 2696 8014
      2697 8014 2697 8003
TIME...MOT...LOC 0130Z 156DEG 27KT 2642 8006

CWC

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MIAMI FL
937 PM EDT SAT SEP 12 2020

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

0915 PM     NON-TSTM WND GST MARCO ISLAND AIRPORT    26.00N 81.67W
09/12/2020  M40 MPH          COLLIER            FL   AWOS

            AWOS STATION KMKY MARCO ISLAND RECORDED A 40
            MPH (35 KT) WIND GUST ASSOCIATED WITH A RAIN
            BAND EMANATING FROM TROPICAL STORM SALLY.

&&

SRB

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MIAMI FL
1045 PM EDT SAT SEP 12 2020

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

1039 PM     HEAVY RAIN       3 SSE ABERDEEN GOLF COU 26.52N 80.14W
09/12/2020  M3.07 INCH       PALM BEACH         FL   MESONET

            TOTAL SO FAR AT MESONET STATION CW0029
            BOYNTON BEACH.

&&

SPM

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MIAMI FL
1047 PM EDT SAT SEP 12 2020

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

1046 PM     HEAVY RAIN       1 SSE FLORIDA GARDENS   26.60N 80.16W
09/12/2020  M3.07 INCH       PALM BEACH         FL   MESONET

            TOTAL SO FAR AT WUNDERGROUND STATION
            KFLLAKEW7.

&&

SPM

Special Weather Statement
National Weather Service Miami FL
1104 PM EDT Sat Sep 12 2020

FLZ067-068-072-168-172-130345-
Coastal Broward County FL-Coastal Palm Beach County FL-
Metro Broward County FL-Inland Palm Beach County FL-
Metro Palm Beach County FL-
1104 PM EDT Sat Sep 12 2020

...SIGNIFICANT WEATHER ADVISORY FOR NORTHERN BROWARD AND SOUTHEASTERN
PALM BEACH COUNTIES UNTIL 1145 PM EDT...

* At 1104 PM EDT, National Weather Service meteorologists were
  tracking a strong thunderstorm over Boca Raton, moving northwest at
  35 mph.

* Winds in excess of 45 mph and funnel clouds possible with this
  storm.

* Locations impacted include...
  West Palm Beach, Pompano Beach, Boca Raton, Deerfield Beach,
  Boynton Beach, Delray Beach, Wellington, Lake Worth, Lighthouse
  Point, Palm Beach, Highland Beach, Ocean Ridge, Coconut Creek,
  Greenacres, Royal Palm Beach, Palm Springs, Lantana, Atlantis,
  Hillsboro Beach and Haverhill.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

This activity was also developing in an environment favorable for the
formation of funnel clouds. Stay tuned to NOAA weather radio and
local media for additional updates and possible warnings.

To report severe weather, contact your nearest law enforcement
agency. You can also share your report with NWS Miami on Facebook and
Twitter.

&&

LAT...LON 2627 7990 2623 8017 2668 8033 2672 7998
TIME...MOT...LOC 0304Z 151DEG 31KT 2634 8007

CWC