Flash Flood Warning 46, NWS JSJ

833 
WGCA72 TJSJ 182309
FFSSJU

Flash Flood Statement
National Weather Service San Juan PR
709 PM AST Sun Sep 18 2022

PRC011-083-097-131-190130-
/O.CON.TJSJ.FF.W.0046.000000T0000Z-220919T0130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Anasco PR-Las Marias PR-Mayaguez PR-San Sebastian PR-
709 PM AST Sun Sep 18 2022

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 930 PM AST THIS 
EVENING FOR ANASCO, LAS MARIAS, MAYAGUEZ AND SAN SEBASTIAN 
COUNTIES...

At 709 PM AST, Doppler radar indicated thunderstorms producing heavy 
rain across the warned area. Between 1.5 and 3 inches of rain have 
fallen. The expected rainfall rate is 0.5 to 1.75 inches per hour. 
Additional rainfall amounts of 2 to 3 inches are possible in the 
warned area. Flash flooding is ongoing.

HAZARD...Flash flooding caused by hurricane rainbands.

SOURCE...Radar and gage reports.

IMPACT...Flash flooding of mainstem rivers including Rio Grande
         de Anasco, small creeks and streams, urban areas,
         highways, streets and underpasses as well as other poor
         drainage and low-lying areas.

The gage at Rio Anasco near San Sebastian has reached 22.42 feet. At 
this level there will be flooding downstream in Barrio Espino within 
the next couple of hours.
Evacuations may be necessary.

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.

Please report observed flooding to local emergency services or law 
enforcement and request they pass this information to the National 
Weather Service when you can do so safely.

&&

LAT...LON 1830 6722 1832 6715 1831 6715 1832 6712
      1830 6704 1832 6702 1835 6704 1838 6702
      1839 6702 1836 6690 1834 6692 1825 6692
      1819 6690 1821 6697 1820 6703 1816 6709
      1818 6719 1821 6717 1827 6720 1828 6723

FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL RATE...0.5-1.75 INCHES IN 1 HOUR

$$

WS

841 
WGCA52 TJSJ 190122
FFWSJU
PRC011-083-097-131-190600-
/O.EXT.TJSJ.FF.W.0046.000000T0000Z-220919T0600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service San Juan PR
922 PM AST Sun Sep 18 2022

The National Weather Service in San Juan has extended the

* Flash Flood Warning for...
  Anasco County in Puerto Rico...
  Las Marias County in Puerto Rico...
  Mayaguez County in Puerto Rico...
  San Sebastian County in Puerto Rico...

* Until 200 AM AST.

* At 922 PM AST, Doppler radar indicated moderate rain continuing 
  across the warned area. Between 2 and 4 inches of rain have 
  fallen. The expected rainfall rate is 0.25 to 0.5 inches per hour. 
  Additional rainfall amounts up to 1 inch are possible in the 
  warned area. Flash flooding is ongoing.

  HAZARD...Life threatening flash flooding.

  SOURCE...Radar.

  IMPACT...Life threatening flash flooding of several mainstem
           rivers as well as creeks and streams, urban areas,
           highways, streets and underpasses.

Rio Anasco reached a maximum stage of 26.12 feet where flooding can 
be expected downstream in Barrio Espino for a few more hours. Rio 
Guanjibo in Hormigueros is still rising slowly from a stage of 20.36 
feet where the river is out of its banks and flooding highway 114 
and highway 347.

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.

Please report observed flooding to local emergency services or law 
enforcement and request they pass this information to the National 
Weather Service when you can do so safely.

&&

LAT...LON 1830 6722 1832 6715 1831 6715 1832 6712
      1830 6704 1832 6702 1835 6704 1838 6702
      1839 6702 1836 6690 1834 6692 1825 6692
      1819 6690 1821 6697 1820 6703 1816 6709
      1818 6719 1821 6717 1827 6720 1828 6723

FLASH FLOOD...RADAR INDICATED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE
EXPECTED RAINFALL RATE...0.25-0.5 INCHES IN 1 HOUR

$$

WS

097 
WGCA52 TJSJ 190558
FFWSJU
PRC011-083-097-131-191200-
/O.EXT.TJSJ.FF.W.0046.000000T0000Z-220919T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service San Juan PR
158 AM AST Mon Sep 19 2022

The National Weather Service in San Juan has extended the

* Flash Flood Warning for...
  Anasco County in Puerto Rico...
  Las Marias County in Puerto Rico...
  Mayaguez County in Puerto Rico...
  San Sebastian County in Puerto Rico...

* Until 800 AM AST Monday.

* At 158 AM AST, Doppler radar indicated heavy rain across the 
  warned area. Between 3 and 5 inches of rain have fallen. The 
  expected rainfall rate is up to 0.75 inches per hour. Additional 
  rainfall amounts up to 1.5 inches are possible in the warned area. 
  Flash flooding is ongoing or expected to begin shortly.

  HAZARD...Life threatening flash flooding.

  SOURCE...Radar.

  IMPACT...Life threatening flash flooding of mainstem rivers
           including the Rio Guanajibo and Rio Grande del Anasco
           as well as creeks and streams, urban areas, highways,
           streets and underpasses.

* Rio Guanajibo has exceeded the major flood stage at 28.12 feet. 
  Around the river residences are being flooded as well as a number 
  of roads made impassable including  highways 114, 347 and 309.

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.

Please report observed flooding to local emergency services or law 
enforcement and request they pass this information to the National 
Weather Service when you can do so safely.

&&

LAT...LON 1830 6722 1832 6715 1831 6715 1832 6712
      1830 6704 1832 6702 1835 6704 1838 6702
      1839 6702 1836 6690 1834 6692 1825 6692
      1819 6690 1821 6697 1820 6703 1816 6709
      1818 6719 1821 6717 1827 6720 1828 6723

FLASH FLOOD...RADAR INDICATED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE
EXPECTED RAINFALL RATE...0.75 INCHES IN 1 HOUR

$$

WS

916 
WGCA72 TJSJ 191159
FFSSJU

Flash Flood Statement
National Weather Service San Juan PR
759 AM AST Mon Sep 19 2022

PRC011-083-097-131-191209-
/O.EXP.TJSJ.FF.W.0046.000000T0000Z-220919T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Anasco PR-Las Marias PR-Mayaguez PR-San Sebastian PR-
759 AM AST Mon Sep 19 2022

...FLASH FLOOD WARNING WILL EXPIRE AT 8 AM AST THIS MORNING FOR 
ANASCO, LAS MARIAS, MAYAGUEZ AND SAN SEBASTIAN COUNTIES...

Please continue to heed remaining road closures. A Flood Watch 
remains in effect until 600 PM AST today for portions of Puerto Rico 
and Virgin Islands.

LAT...LON 1830 6722 1832 6715 1831 6715 1832 6712
      1830 6704 1832 6702 1835 6704 1838 6702
      1839 6702 1836 6690 1834 6692 1825 6692
      1819 6690 1821 6697 1820 6703 1816 6709
      1818 6719 1821 6717 1827 6720 1828 6723

$$

OMS

Area Forecast Discussion
National Weather Service San Juan PR
1156 AM AST Sun Sep 18 2022

.UPDATE...

Based on the latest bulletin for the now Hurricane Fiona from the
National Hurricane center...At 1100 AM AST (1500 UTC), the center
of Hurricane Fiona was located near latitude 17.3 North,
longitude 66.5 West. Fiona is moving toward the west near 8 mph
(22 km/h). The system is expected to continue with a west-
northwestward motion. On the present forecast track the center of
Fiona is expected to move near or over the southern part of Puerto
Rico later this afternoon. Hurricane conditions will therefore be
likely across the southern municipalities and Tropical Storm
conditions across the rest of the forecast area through Monday. As
Fiona approaches the area the frequency of the passing clouds and
shower activity will continue to increase across the region with
occasional bursts of moderate to heavy rains and brief gusty winds
accompanying the rainbands. So far, the municipality of Maunabo
has received 4.33 inches of rain, and Yabucoa has reported wind
gusts up to 91 mph. Conditions will continue deteriorating as the
day progresses. Please refer to the latest Hurricane Local
Statement (HLSSJU) for Tropical Storm Fiona issued by NWS WFO San
Juan Puerto Rico (www.weather.gov/sju)

.AVIATION...Hurricane Fiona was centered near 17.3N 66.5W moving
WNW at 7 kts, and located about 50 mi S of TJPS. Fiona is expected
to move near or over the SW PR area after 18/18-19Z. Therefore,
bands of rain and gusty winds are expected to affect all the
local terminals. Surface winds increasing from ENE 30-40/G60kt to
50-60 kt/G80kt near core.

.MARINE...Hazardous marine conditions are forecast for all of the local
waters for the next several days as Hurricane Fiona moves across
the CWA. A Hurricane Warning is in effect for all the local
waters. Building seas up to 20 feet are expected through early
morning when Fiona is expected to leave the area. Please note
that high seas, high surf, and strong rip currents will be life-
threatening to those entering the water. No other changes are
expected.

&&

Previous discussion issued at 334 AM AST Sun Sep 18 2022

.SYNOPSIS...
Tropical Storm Fiona is now impacting the region, producing heavy
rainfall and tropical-storm-force winds, especially across the
eastern half of the CWA this morning. A Hurricane Warning remains
in effect for Puerto Rico, while a Tropical Storm Warning and a
Hurricane Watch remains in effect for the U.S. Virgin Islands.
Flash flooding and urban flooding, along with mudslides in areas
of higher terrain are possible, particularly across Puerto Rico.
Hurricane conditions are expected in Puerto Rico today and are
possible in the U.S. Virgin Islands this morning. Seas will
continue to be hazardous with possible wave heights up to 20 foot.
Conditions will continue to remain hazardous at least through
tomorrow.

Please follow the latest Hurricane Local Statement (HLSSJU) and
Tropical Cyclone Product (TCPAT2).

&&

.SHORT TERM...Tonight through Monday...

A Hurricane Warning remains in effect for Puerto Rico, while a
Tropical Storm Warning and a Hurricane Watch remains in effect
for the U.S. Virgin Islands. The northern side of Tropical Storm Fiona
has now reached the southeastern quadrant of the CWA and is
producing widespread rainfall and tropical-storm-force winds. The
heaviest rainfall will begin across the US Virgin Islands,
Vieques, Culebra, and eastern/southeastern Puerto Rico. Flooding
remains the greatest threat with this event and there has already
been several river gauges indicating stage levels near or over
flooding thresholds. The rainfall expectations for the event still
remain between 5 to 10 inches widespread and then 12 to 16 inches
with local maximum of 20 inches possible across eastern and
southern Puerto Rico. Flash flooding and urban flooding, along
with mudslides in areas of higher terrain are possible,
particularly across Puerto Rico.

With the latest Advisory, Tropical Storm Fiona Intermediate Advisory
Number 15A issued at 200 AM AST, there are no changes with the
watches and warnings in effect. A northwestward motion in the
track is expected to continue until Tuesday, with the center of
Fiona moving near or over Puerto Rico this afternoon or evening.
Hurricane conditions are expected in Puerto Rico today and are
possible in the U.S. Virgin Islands this morning.

Please follow the latest Hurricane Local Statement (HLSSJU) and
Tropical Cyclone Product (TCPAT2).

&&

.LONG TERM...Wednesday Through Sunday...

A wet pattern is expected to continue as generally southeasterly
flow will prevail in the lower level, filling the local atmosphere
with saturated air. The atmosphere will continue to be unstable
post-Fiona, therefore thunderstorms are expected throughout the
week. Due to days of continuous rainfall, soils across the islands
will be very saturated and the probability for flooding and
landslides will be elevated. Precipitable water values will remain
above normal and then will decrease by Thursday into the weekend
as patchy moisture moves over the region until about Sunday when a
tropical wave may pass over the region. A strong Tropical Upper
Tropospheric Trough (TUTT) may develop east of the region on
Friday. The position of this upper low and tropical wave will
determine how much rainfall will occur next weekend. Overall, for
the long term forecast, a diminishing wet pattern leading to a
normal weather pattern is expected with the greatest hazards being
urban and small stream flooding, isolated mudslides, and daily
thunderstorms.

&&

.AVIATION...At 18/06Z TC Fiona was centered nr 16.9N 65.5W abt 75
miles S of TISX movg WNW nr 7 kts. Fiona will cont to move on this
track with a gradual turn to the northwest Sunday and Sunday night.
Nmrs SHRA/SCT TSRA aft 18/09Z SE portion of FA spreading NW across
all of the FA by 18/16Z. SFC wnds incrg fm ENE 15-25/G30kt to 50-60
kt/g80kt near core. Fiona is expected to track across Cabo Rojo arnd
18/22Z. Mtn obscurations and MVFR to LIFR will be likely ovr PR/USVI
in rain bands and central core of Fiona.

&&

.MARINE...

Hazardous marine conditions are forecast for all of the local
waters for the next several days as Tropical Storm Fiona moves
across the CWA. Therefore, a Hurricane Warning is in effect for
all the local waters. Building seas up to 20 feet are expected
through Monday morning when Fiona is expected to leave the area.
Please note that high seas, high surf, and strong rip currents
will be life-threatening to those entering the water.

&&

.HYDROLOGY...

The most likely time period for the heaviest rainfall activity is
today early Monday. The areas most likely to receive the highest
rainfall accumulations are portions of eastern, interior and
southern Puerto Rico, where there is a potential for rainfall
totals to reach 12 to 16 inches with locally higher amounts to
around 20 inches. Across the Vieques and Culebra and the northern
coast of Puerto Rico the potential exists for rainfall totals to
reach 4 to 10 inches. Elsewhere, including the U.S. Virgin Islands
expect rainfall totals to range between 4 and 6 inches.

Considerable flash and urban flooding impacts are possible across
the interior and eastern and southern half of Puerto Rico from
this evening and Sunday. Across northwest Puerto Rico as well as
the US Virgin Islands, this rainfall may produce limited flash and
urban flooding impacts. Additionally, mudslides and rockfalls are
possible in areas of higher terrain. The threat of flooding will
continue into Monday-- mainly in Puerto Rico.

Several river gauges are showing stage levels reaching flooding
concern thresholds, especially the Rio Blanco in Naguabo.

&&

.SJU WATCHES/WARNINGS/ADVISORIES...
PR...Hurricane Warning for PRZ001>013.

     Flood Watch through Monday afternoon for PRZ001>013.

     Coastal Flood Warning until 6 AM AST Monday for PRZ002-003-007-
     011.

VI...Flood Watch through Monday afternoon for VIZ001-002.

     Tropical Storm Warning for VIZ001-002.

&&

RAM/CVB/CRS/RVT/GRS/LIS

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SAN JUAN PR
446 PM AST SUN SEP 18 2022

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

1225 PM     DEBRIS FLOW      1 SSW PARCELAS LA MILAG 18.16N 66.20W
09/18/2022                   CIDRA              PR   911 CALL CENTER

            FALLEN TREE IN A ROAD. THE ROAD 173 IS
            IMPASSABLE.

&&

MMC

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SAN JUAN PR
451 PM AST SUN SEP 18 2022

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

1225 PM     DEBRIS FLOW      1 WSW CANDELARIA ARENAS 18.42N 66.23W
09/18/2022                   TOA BAJA           PR   911 CALL CENTER

            A TREE FALL INTO CARRETERA 22 FROM BAYAMON
            TO TOA BAJA. THIS TREE IS BLOCKING THE ROAD.

&&

MMC

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SAN JUAN PR
504 PM AST SUN SEP 18 2022

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

0319 PM     FLASH FLOOD      1 NE CAGUAS             18.24N 66.03W
09/18/2022                   CAGUAS             PR   911 CALL CENTER

            A RIVER IS OUT OF ITS BACK. IT FLOOD AN
            URBANIZATION. THERE ARE PEOPLE TRAPPED,
            INCLUDING A NEWBORN AND PEOPLE IN
            WHEELCHAIRS.

&&

MMC

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SAN JUAN PR
507 PM AST SUN SEP 18 2022

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

0353 PM     FLOOD            2 S CAGUAS              18.21N 66.04W
09/18/2022                   CAGUAS             PR   911 CALL CENTER

            CALLE BORBON IN CAGUAS IS FLOODED.

&&

MMC

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SAN JUAN PR
511 PM AST SUN SEP 18 2022

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

0423 PM     DEBRIS FLOW      2 NNE G. L. GARCIA      18.16N 66.09W
09/18/2022                   CAYEY              PR   911 CALL CENTER

            MUDSLIDE IN CARRETERA 1 IN DIRECTION TO
            CAGUAS.

&&

MMC

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SAN JUAN PR
515 PM AST SUN SEP 18 2022

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

0427 PM     DEBRIS FLOW      2 SSW TRUJILLO ALTO     18.33N 66.03W
09/18/2022                   TRUJILLO ALTO      PR   911 CALL CENTER

            A LIGHT POLE FALL INTO CARRETERA 843. THE
            LIGHT POLE IS BLOCKING THE ROAD.

&&

MMC