Alert archive / Puerto Rico / Flash Flood Warnings in 2022

Flash Flood Warning 19, NWS JSJ

July 2, 2022

NWS JSJ issued this flash flood warning at Jul 2, 2022, 10:24 AM CDT. It was in force for 12 hr. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Jul 2, 2022, 10:24 AM CDT (15:24 UTC)
Expired
Jul 2, 2022, 10:30 PM CDT
In force
12 hr
Issued by
NWS JSJ
Area
Storm-based polygon
Flood severity
None

The radar

The San Juan radar (TJUA), 29 km from the middle of the area, began a volume at 15:28 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.

What was reported inside it

TimeReportWhereRemark
Jul 2, 4:00 PM CDTFLASH FLOODNaguabo, PRROAD 31 CLOSED DUE TO FLOOD WATERS FROM RIO BLANCO BEING OUT OF ITS BANKS.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

Did it verify

Verified. The Iowa Environmental Mesonet's Cow matched 2 storm reports to this flash flood warning; the first came 336 minutes after it went out.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The text

As transmitted.

243 
WGCA52 TJSJ 021524
FFWSJU
PRC069-077-085-103-021830-
/O.NEW.TJSJ.FF.W.0019.220702T1524Z-220702T1830Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service San Juan PR
1124 AM AST Sat Jul 2 2022

The National Weather Service in San Juan has issued a

* Flash Flood Warning for...
  Humacao Municipality in Puerto Rico...
  Juncos Municipality in Puerto Rico...
  Las Piedras Municipality in Puerto Rico...
  Naguabo Municipality in Puerto Rico...

* Until 230 PM AST.

* At 1124 AM AST, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Between 1.5 and 3 inches of 
  rain have fallen. Additional rainfall amounts of 1 to 2 inches are 
  possible in the warned area. Flash flooding is ongoing or expected 
  to begin shortly.

  HAZARD...Flash flooding caused by thunderstorms.

  SOURCE...Radar.

  IMPACT...Flash flooding of small creeks and streams, urban
           areas, highways, streets and underpasses as well as
           other poor drainage and low-lying areas.

* Some locations that will experience flash flooding include...
  Humacao, Las Piedras, Naguabo, Juncos, Anton Ruiz, La Fermina, 
  Punta Santiago, Roosevelt Roads, Pena Pobre, Rio Blanco, Bajandas, 
  Pueblito Del Rio, El Mango, Duque, Candelero Arriba, Comunas, 
  Lomas and Daguao.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 1820 6593 1822 6595 1825 6595 1827 6592
      1825 6585 1830 6579 1825 6573 1825 6568
      1823 6569 1822 6566 1818 6569 1819 6573
      1816 6573 1815 6577 1807 6580 1810 6585
      1812 6585 1811 6587 1812 6593

FLASH FLOOD...RADAR INDICATED

$$

CAM
9 follow-up statements
504 
WGCA72 TJSJ 021626
FFSSJU

Flash Flood Statement
National Weather Service San Juan PR
1226 PM AST Sat Jul 2 2022

PRC069-077-085-103-021830-
/O.CON.TJSJ.FF.W.0019.000000T0000Z-220702T1830Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Humacao PR-Juncos PR-Las Piedras PR-Naguabo PR-
1226 PM AST Sat Jul 2 2022

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 230 PM AST THIS 
AFTERNOON FOR HUMACAO, JUNCOS, LAS PIEDRAS AND NAGUABO 
MUNICIPALITIES...

At 1226 PM AST, Doppler radar estimated up to 5 inches of rain 
across the warning area. Also, the USGS rain gauge (NGKP4) at Rio 
Blanco indicated that the river is out of its bank.

HAZARD...Flash flooding caused by thunderstorms.

SOURCE...Radar.

IMPACT...Flash flooding of small creeks and streams, urban areas,
         highways, streets and underpasses as well as other poor
         drainage and low-lying areas.

Some locations that will experience flash flooding include...
  Humacao, Las Piedras, Naguabo, Juncos, Anton Ruiz, La Fermina, 
  Punta Santiago, Roosevelt Roads, Pena Pobre, Rio Blanco, Bajandas, 
  Pueblito Del Rio, El Mango, Duque, Candelero Arriba, Comunas, 
  Lomas and Daguao.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 1820 6593 1822 6595 1825 6595 1827 6592
      1825 6585 1830 6579 1825 6573 1825 6568
      1823 6569 1822 6566 1818 6569 1819 6573
      1816 6573 1815 6577 1807 6580 1810 6585
      1812 6585 1811 6587 1812 6593

FLASH FLOOD...RADAR INDICATED

$$

CAM
044 
WGCA52 TJSJ 021826
FFWSJU
PRC069-077-085-103-022000-
/O.EXT.TJSJ.FF.W.0019.000000T0000Z-220702T2000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service San Juan PR
226 PM AST Sat Jul 2 2022

The National Weather Service in San Juan has extended the

* Flash Flood Warning for...
  Humacao Municipality in Puerto Rico...
  Juncos Municipality in Puerto Rico...
  Las Piedras Municipality in Puerto Rico...
  Naguabo Municipality in Puerto Rico...

* Until 400 PM AST.

* At 226 PM AST, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Between 2.5 and 5 inches of 
  rain have fallen. Additional rainfall amounts of 1 to 3 inches are 
  possible in the warned area. Flash flooding is ongoing or expected 
  to begin shortly.

  HAZARD...Flash flooding caused by thunderstorms.

  SOURCE...Radar.

  IMPACT...Flash flooding of small creeks and streams, urban
           areas, highways, streets and underpasses as well as
           other poor drainage and low-lying areas.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Be aware of your surroundings and do not drive on flooded roads.

&&

LAT...LON 1820 6593 1822 6595 1825 6595 1827 6592
      1825 6585 1830 6579 1825 6573 1825 6568
      1823 6569 1822 6566 1818 6569 1819 6573
      1816 6573 1815 6577 1807 6580 1810 6585
      1812 6585 1811 6587 1812 6593

FLASH FLOOD...RADAR INDICATED

$$

CRS
879 
WGCA52 TJSJ 021950
FFWSJU
PRC069-077-085-103-022200-
/O.EXT.TJSJ.FF.W.0019.000000T0000Z-220702T2200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service San Juan PR
350 PM AST Sat Jul 2 2022

The National Weather Service in San Juan has extended the

* Flash Flood Warning for...
  Humacao Municipality in Puerto Rico...
  Juncos Municipality in Puerto Rico...
  Las Piedras Municipality in Puerto Rico...
  Naguabo Municipality in Puerto Rico...

* Until 600 PM AST.

* At 350 PM AST, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Between 3 and 6 inches of rain 
  have fallen. Additional rainfall amounts of 1 to 3 inches are 
  possible in the warned area. Flash flooding is ongoing or expected 
  to begin shortly.

  HAZARD...Flash flooding caused by thunderstorms.

  SOURCE...Radar.

  IMPACT...Flash flooding of small creeks and streams, urban
           areas, highways, streets and underpasses as well as
           other poor drainage and low-lying areas.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Be aware of your surroundings and do not drive on flooded roads.

&&

LAT...LON 1820 6593 1822 6595 1825 6595 1827 6592
      1825 6585 1830 6579 1825 6573 1825 6568
      1823 6569 1822 6566 1818 6569 1819 6573
      1816 6573 1815 6577 1807 6580 1810 6585
      1812 6585 1811 6587 1812 6593

FLASH FLOOD...RADAR INDICATED

$$

CRS
244 
WGCA52 TJSJ 022151
FFWSJU
PRC069-077-085-103-030000-
/O.EXT.TJSJ.FF.W.0019.000000T0000Z-220703T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service San Juan PR
551 PM AST Sat Jul 2 2022

The National Weather Service in San Juan has extended the

* Flash Flood Warning for...
  Humacao Municipality in Puerto Rico...
  Juncos Municipality in Puerto Rico...
  Las Piedras Municipality in Puerto Rico...
  Naguabo Municipality in Puerto Rico...

* Until 800 PM AST.

* At 551 PM AST, Emergency Management reported thunderstorms 
  producing heavy rain across the warned area, with road flooding 
  from Rio Blanco. Between 4 and 6 inches of rain have fallen. 
  Additional rainfall amounts of 1 to 3 inches are possible in the 
  warned area. Flash flooding is ongoing or expected to begin 
  shortly.

  HAZARD...Flash flooding caused by thunderstorms.

  SOURCE...Emergency management reported.

  IMPACT...Flash flooding of small creeks and streams, urban
           areas, highways, streets and underpasses as well as
           other poor drainage and low-lying areas.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Be aware of your surroundings and do not drive on flooded roads.

&&

LAT...LON 1820 6593 1822 6595 1825 6595 1827 6592
      1825 6585 1830 6579 1825 6573 1825 6568
      1823 6569 1822 6566 1818 6569 1819 6573
      1816 6573 1815 6577 1807 6580 1810 6585
      1812 6585 1811 6587 1812 6593

FLASH FLOOD...OBSERVED

$$

CRS
062 
WGCA72 TJSJ 022351
FFSSJU

Flash Flood Statement
National Weather Service San Juan PR
751 PM AST Sat Jul 2 2022

PRC069-077-085-103-030000-
/O.CON.TJSJ.FF.W.0019.000000T0000Z-220703T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Humacao PR-Juncos PR-Las Piedras PR-Naguabo PR-
751 PM AST Sat Jul 2 2022

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 8 PM AST THIS EVENING 
FOR HUMACAO, JUNCOS, LAS PIEDRAS AND NAGUABO MUNICIPALITIES...

At 751 PM AST, Doppler radar and automated rain gauges indicated 
thunderstorms producing heavy rain across the warned area. Between 4 
and 7 inches of rain have fallen. Additional rainfall amounts of 1 
to 2 inches are possible in the warned area, with rain about to move 
onshore. Flash flooding is ongoing or expected to begin shortly.

HAZARD...Flash flooding caused by thunderstorms.

SOURCE...Radar and automated gauges.

IMPACT...Flash flooding of small creeks and streams, urban areas,
         highways, streets and underpasses as well as other poor
         drainage and low-lying areas.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Be aware of your surroundings and do not drive on flooded roads.

&&

LAT...LON 1820 6593 1822 6595 1825 6595 1827 6592
      1825 6585 1830 6579 1825 6573 1825 6568
      1823 6569 1822 6566 1818 6569 1819 6573
      1816 6573 1815 6577 1807 6580 1810 6585
      1812 6585 1811 6587 1812 6593

FLASH FLOOD...RADAR AND GAUGE INDICATED

$$

CRS
240 
WGCA52 TJSJ 022352
FFWSJU
PRC069-077-085-103-030130-
/O.EXT.TJSJ.FF.W.0019.000000T0000Z-220703T0130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service San Juan PR
752 PM AST Sat Jul 2 2022

The National Weather Service in San Juan has extended the

* Flash Flood Warning for...
  Humacao Municipality in Puerto Rico...
  Juncos Municipality in Puerto Rico...
  Las Piedras Municipality in Puerto Rico...
  Naguabo Municipality in Puerto Rico...

* Until 930 PM AST.

* At 752 PM AST, Doppler radar and automated rain gauges indicated 
  thunderstorms producing heavy rain across the warned area. Between 
  4 and 7 inches of rain have fallen. Additional rainfall amounts of 
  1 to 2 inches are possible in the warned area, with rain about to 
  move onshore. Flash flooding is ongoing or expected to begin 
  shortly.

  HAZARD...Flash flooding caused by thunderstorms.

  SOURCE...Radar and automated gauges.

  IMPACT...Flash flooding of small creeks and streams, urban
           areas, highways, streets and underpasses as well as
           other poor drainage and low-lying areas.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Be aware of your surroundings and do not drive on flooded roads.

&&

LAT...LON 1820 6593 1822 6595 1825 6595 1827 6592
      1825 6585 1830 6579 1825 6573 1825 6568
      1823 6569 1822 6566 1818 6569 1819 6573
      1816 6573 1815 6577 1807 6580 1810 6585
      1812 6585 1811 6587 1812 6593

FLASH FLOOD...RADAR AND GAUGE INDICATED

$$

CRS
698 
WGCA52 TJSJ 030120
FFWSJU
PRC069-077-085-103-030230-
/O.EXT.TJSJ.FF.W.0019.000000T0000Z-220703T0230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service San Juan PR
920 PM AST Sat Jul 2 2022

The National Weather Service in San Juan has extended the

* Flash Flood Warning for...
  Humacao Municipality in Puerto Rico...
  Juncos Municipality in Puerto Rico...
  Las Piedras Municipality in Puerto Rico...
  Naguabo Municipality in Puerto Rico...

* Until 1030 PM AST.

* At 920 PM AST, Doppler radar and automated rain gauges indicated 
  thunderstorms producing heavy rain across the warned area. Between 
  4 and 7 inches of rain have fallen. Additional rainfall amounts up 
  to 1 inch are possible in the warned area. Flash flooding is 
  ongoing or expected to begin shortly.

  HAZARD...Flash flooding caused by thunderstorms.

  SOURCE...Radar and automated gauges.

  IMPACT...Flash flooding of small creeks and streams, urban
           areas, highways, streets and underpasses as well as
           other poor drainage and low-lying areas.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Be aware of your surroundings and do not drive on flooded roads.

&&

LAT...LON 1820 6593 1822 6595 1825 6595 1827 6592
      1825 6585 1830 6579 1825 6573 1825 6568
      1823 6569 1822 6566 1818 6569 1819 6573
      1816 6573 1815 6577 1807 6580 1810 6585
      1812 6585 1811 6587 1812 6593

FLASH FLOOD...RADAR AND GAUGE INDICATED

$$

CRS
084 
WGCA52 TJSJ 030225
FFWSJU
PRC069-077-085-103-030330-
/O.EXT.TJSJ.FF.W.0019.000000T0000Z-220703T0330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service San Juan PR
1025 PM AST Sat Jul 2 2022

The National Weather Service in San Juan has extended the

* Flash Flood Warning for...
  Humacao Municipality in Puerto Rico...
  Juncos Municipality in Puerto Rico...
  Las Piedras Municipality in Puerto Rico...
  Naguabo Municipality in Puerto Rico...

* Until 1130 PM AST.

* At 1025 PM AST, Doppler radar and automated rain gauges indicated 
  thunderstorms producing heavy rain across the warned area. Between 
  4 and 7 inches of rain have fallen. Additional rainfall amounts up 
  to 0.5 inches are possible in the warned area. Flooding will only 
  slowly subside.

  HAZARD...Flash flooding caused by thunderstorms.

  SOURCE...Radar and automated gauges.

  IMPACT...Flash flooding of small creeks and streams, urban
           areas, highways, streets and underpasses as well as
           other poor drainage and low-lying areas.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Be aware of your surroundings and do not drive on flooded roads.

&&

LAT...LON 1820 6593 1822 6595 1825 6595 1827 6592
      1825 6585 1830 6579 1825 6573 1825 6568
      1823 6569 1822 6566 1818 6569 1819 6573
      1816 6573 1815 6577 1807 6580 1810 6585
      1812 6585 1811 6587 1812 6593

FLASH FLOOD...RADAR AND GAUGE INDICATED

$$

WS
053 
WGCA72 TJSJ 030323
FFSSJU

Flash Flood Statement
National Weather Service San Juan PR
1123 PM AST Sat Jul 2 2022

PRC069-077-085-103-030333-
/O.EXP.TJSJ.FF.W.0019.000000T0000Z-220703T0330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Humacao PR-Juncos PR-Las Piedras PR-Naguabo PR-
1123 PM AST Sat Jul 2 2022

...FLASH FLOOD WARNING WILL EXPIRE AT 1130 PM AST THIS EVENING FOR 
HUMACAO, JUNCOS, LAS PIEDRAS AND NAGUABO MUNICIPALITIES...

The heavy rain has ended. Flood waters will slowly recede. Please 
continue to heed remaining road closures.

LAT...LON 1820 6593 1822 6595 1825 6595 1827 6592
      1825 6585 1830 6579 1825 6573 1825 6568
      1823 6569 1822 6566 1818 6569 1819 6573
      1816 6573 1815 6577 1807 6580 1810 6585
      1812 6585 1811 6587 1812 6593

$$

WS

What forecasters said that day

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

NWS JSJ wrote its last area forecast discussion before this flash flood warning went out at Jul 2, 4:33 AM CDT, 5 hours 51 minutes earlier.

Area forecast discussion, Jul 2, 4:33 AM CDT, 5 hours 51 minutes before
Area Forecast Discussion
National Weather Service San Juan PR
533 AM AST Sat Jul 2 2022

.SYNOPSIS...The passage of a strong tropical wave will lead to
increased wind speeds and widespread shower and thunderstorm
activity today into Sunday. This scenario will increase the
potential for urban and small stream to localized flash flooding
and mudslides. In addition, moderate to locally strong winds will
maintain choppy to hazardous marine and surf zone conditions. As a
result, Small Craft Advisories and High Risk of Rip Currents
remain in place for most local waters and beaches, respectively.
Weather and marine conditions will gradually improve by early next
week.

&&

.SHORT TERM...Today through Monday...

The best convection of a tropical wave approaching the area is about
290 miles southeast of San Juan.  The wave is expected to pass
through the U.S. Virgin Islands today and Puerto Rico overnight. The
forecast for this wave has changed very little in the past 24 hours.
The 850 mb winds forecast both before and after the wave reach 30-35
knots over Puerto Rico and the USVI. Precipitable water values are
expected to peak twice, once at 6 AM Sunday and again just after 6
PM AST at 2.3 inches. There will be a rapid ramp-up on Saturday to
these maximum values, however during the day today. This will
provide more than adequate moisture for heavy rains. Although not
very unstable, 500 mb temperatures are expected to be around minus 7
degrees today, dropping to minus 6 on Sunday. Moisture and showers
will move into the area from the southeast, and are already
affecting Saint Croix. Only scattered showers in southeast and
eastern Puerto Rico are expected before dawn, but showers should
spread rapidly across the area during the morning. Currently rain
amounts for the next 48 hours should range from 1 to 4 inches--
lowest northwest and highest southeast. This will likely provoke
urban and small stream flooding with rapid river rises later in the
day and overnight. As flow turns southeasterly after the passage of
the wave, good moisture will continue to stream across the area
tonight and into Sunday with the threat of minor flooding
continuing, but low-level moisture drops off quickly by Sunday
morning. Heavy showers will likely form during the day Sunday, but
will move quickly. More typical summer weather conditions will
return in a breezy scenario Monday.

The upper level low in the long wave trough is quickly lifting
northeast of the British Virgin Islands but is also dissipating.
Some troughiness will remain across eastern Cuba and Hispaniola as
the main trough feels the presence of the cut-off low south of
Florida and Cuba. This will produce a slightly more favorable
environment for enhanced shower and thunderstorm activity today and
Sunday, though its effects are waning. High pressure will move in
over the Antilles on Monday as the atmosphere begins to dry.

.LONG TERM...Tuesday through Saturday...

At the surface, a strong high pressure across the north Atlantic
will induce a generally east to southeast wind flow of around
10-20 mph and locally higher through the cycle. Variations in the
general wind flow will result from a weak tropical wave crossing
the northeastern Caribbean by Wednesday. Lingering moisture from a
departing strong tropical wave will maintain above-normal moisture
levels of 2.0 inches or above through Tuesday night. After that, a
patchy weather scenario and somewhat drying trend will follow,
promoting a more stable weather pattern. Even considering a slight
increase in tropical moisture with the passage of a weak tropical
wave, the moisture content will remain at normal seasonal levels,
ranging between 1.4 and 1.9 inches.

Despite variations in surface winds and moisture content, a set of
mid-to-upper level lows streaming across the northeastern
Caribbean will maintain a weak trade wind cap and somewhat
favorable conditions for deep convective development through most
of the cycle. Aided by local and diurnal effects, this scenario
will enhance afternoon showers and isolated thunderstorm
development mainly across the interior to western sections of
Puerto Rico, even during the driest periods expected on Wednesday
and Thursday. Streamer-like showers could also affect portions of
eastern Puerto Rico and the San Juan metropolitan area each
afternoon. Although limited, overnight and early morning trade
wind showers will offer the chance for measurable rainfall amounts
across the U.S. Virgin Islands and eastern Puerto Rico. Saharan
Dust concentration will maintain hazy conditions, with the
highest impact expected during the driest periods.

&&

.AVIATION...SHRA are increasing ovr the SE portion of the FA and
just north of TSJU. Winds of 10-20 kt cont and will increase to 15-
25 kt as trop wave passes today. Gusts to 30 kt psbl nr TSRA. Aft
01/15Z SHRA/isol-sct TSRA spread ovr PR and will generate areas of
MVFR/IFR and mtn obscurations with SHRA/low clds til byd 03/08Z. Max
winds bcmg S 20-30 kt btwn FL330-490.

&&

.MARINE...Increasing winds up to 20 knots and locally higher,
gusting up to 35 knots, will maintain choppy to hazardous marine
conditions, with building seas up to 10 feet expected today. As a
result, Small Craft Advisories remain in effect for most of the
local waters. Seas will gradually subside but remain choppy to
hazardous through at least Tuesday. There is a high risk of rip
currents for beaches across the northern, eastern, and southern
coasts of Puerto Rico and most beaches of Vieques, Culebra, and
the U.S. Virgin Islands.

&&

.PRELIMINARY POINT TEMPS/POPS...
SJU  87  76  86  78 /  90  90  60  50
STT  86  78  86  81 /  90  90  60  30

&&

.SJU WATCHES/WARNINGS/ADVISORIES...
PR...High Rip Current Risk through Sunday afternoon for Culebra-North
     Central-Northeast-Northwest-San Juan and Vicinity-Southeast-
     Vieques.

     High Rip Current Risk through Sunday afternoon for Ponce and
     Vicinity-Southwest-Western Interior.

VI...High Rip Current Risk through Sunday afternoon for St Croix.

     High Rip Current Risk through Sunday afternoon for
     St.Thomas...St. John...and Adjacent Islands.

AM...Small Craft Advisory from 2 PM this afternoon to 2 AM AST Monday
     for Coastal Waters of Southern Puerto Rico out 10 NM.

     Small Craft Advisory until 2 AM AST Monday for Atlantic Waters
     of Puerto Rico and USVI from 10 NM to 19.5N-Caribbean
     Waters of Puerto Rico from 10 NM to 17N-Mona Passage
     Southward to 17N.

     Small Craft Advisory from 2 PM this afternoon to 8 AM AST Sunday
     for Coastal Waters of Northern Puerto Rico out 10 NM.

     Small Craft Advisory until 2 PM AST Sunday for Anegada Passage
     Southward to 17N-Coastal Waters of Northern USVI and
     Culebra out 10 NM-Coastal Waters of Southern USVI Vieques
     and Eastern Puerto Rico out 10 NM.

     Small Craft Advisory from 2 PM this afternoon to 2 AM AST Sunday
     for Coastal Waters of Southwestern Puerto Rico out 10 NM.

&&

SHORT TERM...WS
LONG TERM....ICP
PUBLIC DESK...ICP
Hazardous weather outlook, Jul 2, 3:59 AM CDT, 6 hours 25 minutes before
Perspectivas sobre las Condiciones Peligrosas del Tiempo
Servicio Nacional de Meteorologia en San Juan PR
432 AM AST sabado 2 de julio de 2022

AMZ710>745-PRZ001>013-030845-
San Juan y Vecindad-Noreste-Sureste- Este Interior-Norte Central-
Interior Central-Ponce y Vecindad-Noroeste-Oeste Interior-Mayaguez y
Vecindad-Suroeste-Culebra-Vieques-Las aguas costeras cercanas y
lejanas a la costa del Atlantico y del Caribe-
452 AM AST viernes 2 de julio de 2022

Esta perspectiva sobre las condiciones peligrosas del tiempo es para
Puerto Rico y las aguas costeras adyacentes.

.Dia Uno...Hoy y esta noche

.Tronadas...Tronadas acompanando una onda tropical traera la amenaza
de impactos por rayos, lluvia fuerte y vientos en rafagas breves
comenzando tarde esta manana.

.Inundaciones...Lluvias fuertes daran paso a inundaciones urbanas y
de riachuelos en algunas areas, especialmente en el sureste de
Puerto Rico.

.Viento...Se esperan vientos sostenidos en exceso de 20 mph (17
nudos) con la posibilidad de rafagas de hasta 35 mph a traves de
gran parte del area local.

.Oleaje...Se espera un oleaje picado de hasta 10 pies a traves de
las aguas locales expuestas.

.Corrientes marinas...Existe un riesgo alto de corrientes marinas
para la mayoria de las playas de Puerto Rico, excepto por un area
pequena cerca de Mayaguez.

.Calor...Humedad alta resultara en indices de calor de hasta 103
grados para las areas costeras del norte central de Puerto Rico y
cerca del area metropolitana de Mayaguez.

.Dias dos hasta el siete...domingo a viernes

Una onda tropical que se aleja del area generara oleaje peligroso,
un riesgo alto de corrientes marinas, vientos en exceso de 20 mph
(17 nudos), lluvias fuertes que podrian causar inundaciones urbanas
y de riachuelos y tronadas dispersas el domingo. Indices de calor
por encima de 102 grados regresaran el lunes a medida que estas
amenazas disminuyan. Se esperan tronadas aisladas con lluvias fuertes
breves desde el lunes hasta el viernes en la tarde en Puerto Rico.
El riesgo de corrientes marinas permanecera moderado para la mayoria
de las playas hasta el miercoles, cuando un riesgo alto regresara
para las costas del norte y sur.

.Comunicado sobre informacion reportada por observadores...

No se espera activacion amplia de observadores. Sin embargo, le
agradeceriamos reportara cualquier informacion sobre vientos, olas y
corrientes marinas al Servicio Nacional de Meteorologia en San Juan
siguiendo todas las indicaciones locales y estatales.

AMZ715-725-VIZ001-002-03845-
San Tomas, San John e Islas Adyacentes-Santa Cruz-Aguas cercanas del
Atlantico y aguas costeras adyacentes del Caribe-
432 AM AST sabado 2 de julio de 2022

Esta perspectiva sobre las condiciones peligrosas del tiempo es para
Islas Virgenes Estadounidenses y las aguas costeras adyacentes.

.Dia Uno...Hoy y esta noche

.Tronadas...Existe el potencial de tronadas con lluvias fuertes y
vientos en rafaga breves.

.Inundaciones...Lluvias fuertes daran paso a inundaciones urbanas y
de cunetas.

.Viento...Se esperan vientos sostenidos en exceso de 20 mph (17
nudos) con rafagas de hasta 35 mph.

.Oleaje...Se espera un oleaje picado de hasta 10 pies a traves de
las aguas mar afuera y pasajes locales.

.Corrientes marinas...Existe un riesgo alto de corrientes marinas
para las playas de Santa Cruz y las playas del sur de San Thomas y
San John. El riesgo de corrientes marinas estara moderado para el
resto de las playas.

.Dias dos hasta el siete...domingo a viernes

Una onda tropical que se aleja del area generara oleaje peligroso,
un riesgo alto de corrientes marinas, vientos en exceso de 20 mph
(17 nudos), lluvias fuertes que podrian causar inundaciones urbanas
y de cunetas y tronadas dispersas el domingo y lunes. Luego, el
riesgo de corrientes marinas permanecera moderado para la mayoria de
las playas hasta el jueves, cuando un riesgo alto regresara para
Santa Cruz.

.Comunicado sobre informacion reportada por observadores...

No se espera activacion amplia de observadores.

In the hours before

Special weather statement, Jul 2, 6:25 AM CDT, 3 hours 59 minutes before
Comunicado Especial sobre las Condiciones del Tiempo
Servicio Nacional de Meteorologia San Juan PR
719 AM AST sabado 1 de julio de 2022

...Una tronada fuerte impacartara sectores del sureste y este interior
de Puerto Rico hasta las 800 AM AST...

A las 718 AM AST, una tronada estaba cerca de Humacao, moviendose hacia
el oeste a 35 mph.

PELIGROS...Vientos de hasta 40 mph, rayos frecuentes y lluvia fuerte.

FUENTE...Indicado por radar.

IMPACTOS...Espere danos menores de ramas de arboles y de objetos
           livianos no asegurados. Lluvias fuertes podrian causar
           inundaciones temporales de carreteras, especialmente
           en areas de poco drenaje.

MEDIDAS DE PRECAUCION/PREPARATIVOS...

Las personas que se encuentran en el exterior deben buscar refugio
inmediatamente. Los conductores deben disminuir la velocidad y estar
preparados para posible perdida de control del automovil debido a
deslizamiento.

&&

TAMANO MAXIMO DE GRANIZO...0.00 PULGADAS
RAFAGA DE VIENTO MAXIMA...40 MPH

CAM/ERG
Local storm report, Jul 2, 8:24 AM CDT, 2 hours before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SAN JUAN PR
924 AM AST SAT JUL 2 2022

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

0647 AM     NON-TSTM WND GST 4 SSE CHARLOTTE AMALIE  18.28N 64.89W
07/02/2022  M48 MPH          SAINT THOMAS       VI   MESONET

            MESONET STATION XBUK BUCK ISLAND,.

0839 AM     NON-TSTM WND GST 5 E CULEBRA             18.31N 65.23W
07/02/2022  M47 MPH          CULEBRA            PR   MESONET

            MESONET STATION XCUL ISLA CULEBRITA LIGHT.

&&
Special weather statement, Jul 2, 8:49 AM CDT, 1 hour 35 minutes before
Special Weather Statement
National Weather Service San Juan PR
949 AM AST Sat Jul 2 2022

PRZ002>004-006-007-021430-
Central Interior PR-Northeast PR-Ponce and Vicinity PR-
Eastern Interior PR-Southeast PR-
949 AM AST Sat Jul 2 2022

...A strong thunderstorm will impact portions of southeast,
northeast and eastern interior Puerto Rico through 1030 AM AST...

At 948 AM AST, a strong thunderstorm was over Yabucoa, moving
northwest at 20 mph.

HAZARD...40 mph wind and heavy rain.

SOURCE...Radar indicated.

IMPACT...Expect minor damage to tree limbs and blowing around of
         light, unsecured objects. Heavy rain may cause temporary
         street flooding especially in poor drainage areas.

Locations impacted include...
Fajardo, Guayama, Arroyo, Gurabo, Canovanas, Salinas, Humacao, Cidra,
San Lorenzo, Juncos, Comerio, Yabucoa, Rio Grande, Caguas, Naguabo,
Aguas Buenas, Maunabo, Las Piedras, Cayey and Luquillo.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People outdoors should seek shelter immediately. Motorists should
slow down and be prepared for possible loss of control due to
hydroplaning.

&&

LAT...LON 1838 6575 1839 6560 1838 6561 1834 6557
      1835 6563 1823 6559 1819 6573 1801 6584
      1793 6625 1798 6634 1810 6622 1825 6626
      1831 6604 1826 6592 1844 6596 1846 6599
TIME...MOT...LOC 1348Z 120DEG 17KT 1807 6587

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH

CAM
Special weather statement, Jul 2, 8:55 AM CDT, 1 hour 29 minutes before
Comunicado Especial sobre las Condiciones del Tiempo
Servicio Nacional de Meteorologia San Juan PR
949 AM AST sabado 2 de julio de 2022

...Una tronada fuerte impacartara sectores del sureste y este interior
de Puerto Rico hasta las 1030 AM AST...

A las 948 AM AST, una tronada estaba cerca de Yabucoa, moviendose hacia
el oeste a 20 mph.

PELIGROS...Vientos de hasta 40 mph y lluvia fuerte.

FUENTE...Indicado por radar.

IMPACTOS...Espere danos menores de ramas de arboles y de objetos
           livianos no asegurados. Lluvias fuertes podrian causar
           inundaciones temporales de carreteras, especialmente
           en areas de poco drenaje.

MEDIDAS DE PRECAUCION/PREPARATIVOS...

Las personas que se encuentran en el exterior deben buscar refugio
inmediatamente. Los conductores deben disminuir la velocidad y estar
preparados para posible perdida de control del automovil debido a
deslizamiento.

&&

TAMANO MAXIMO DE GRANIZO...0.00 PULGADAS
RAFAGA DE VIENTO MAXIMA...40 MPH

CAM/ERG
Special weather statement, Jul 2, 9:52 AM CDT, 32 minutes before
Special Weather Statement
National Weather Service San Juan PR
1052 AM AST Sat Jul 2 2022

PRZ002>004-021600-
Northeast PR-Eastern Interior PR-Southeast PR-
1052 AM AST Sat Jul 2 2022

...A strong thunderstorm will impact portions of northeast,
southeast and eastern interior Puerto Rico Municipalities through
NOON AST...

At 1051 AM AST, a strong thunderstorm was over Naguabo, moving
northwest at 10 mph.

HAZARD...Up to 40 mph wind, frequent cloud to ground lightning and
         heavy rain.

SOURCE...Radar indicated.

IMPACT...Expect minor damage to tree limbs and blowing around of
         light, unsecured objects. Heavy rain may cause temporary
         street flooding especially in poor drainage areas.

Locations impacted include...
Fajardo, Guayama, Arroyo, Gurabo, Canovanas, Salinas, Humacao, Cidra,
San Lorenzo, Juncos, Comerio, Yabucoa, Rio Grande, Caguas, Naguabo,
Aguas Buenas, Maunabo, Las Piedras, Cayey and Luquillo.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People outdoors should seek shelter immediately. If you can hear
thunder, you are close enough to be struck by lightning. Motorists
should slow down and be prepared for possible loss of control due to
hydroplaning.

&&

LAT...LON 1845 6595 1836 6569 1838 6562 1827 6563
      1822 6560 1824 6563 1820 6563 1819 6573
      1801 6584 1792 6620 1793 6620 1795 6617
      1796 6621 1793 6627 1798 6634 1810 6622
      1825 6625 1831 6597 1827 6591
TIME...MOT...LOC 1451Z 115DEG 11KT 1824 6575

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH

CAM
Special weather statement, Jul 2, 10:05 AM CDT, 19 minutes before
Comunicado Especial sobre las Condiciones del Tiempo
Servicio Nacional de Meteorologia San Juan PR
1052 AM AST sabado 2 de julio de 2022

...Una tronada fuerte impacartara sectores del noreste, sureste y
este interior de Puerto Rico hasta el medio dia AST...

A las 1051 AM AST, una tronada estaba cerca de Naguabo, moviendose
hacia el oeste a 10 mph.

PELIGROS...Vientos de hasta 40 mph, rayos frecuentes y lluvia fuerte.

FUENTE...Indicado por radar.

IMPACTOS...Espere danos menores de ramas de arboles y de objetos
           livianos no asegurados. Lluvias fuertes podrian causar inundaciones
           temporales de carreteras, especialmente en areas de poco drenaje.

Areas impactadas...
Fajardo, Guayama, Arroyo, Gurabo, Canovanas, Salinas, Humacao, Cidra,
San Lorenzo, Juncos, Comerio, Yabucoa, Rio Grande, Caguas, Naguabo,
Aguas Buenas, Maunabo, Las Piedras, Cayey y Luquillo.

MEDIDAS DE PRECAUCION/PREPARATIVOS...

Las personas que se encuentran en el exterior deben buscar refugio
inmediatamente. Los conductores deben disminuir la velocidad y estar
preparados para posible perdida de control del automovil debido a
deslizamiento.

&&

TAMANO MAXIMO DE GRANIZO...0.00 PULGADAS
RAFAGA DE VIENTO MAXIMA...40 MPH

CAM/MMC

TAMANO MAXIMO DE GRANIZO...0.00 PULGADAS
RAFAGA DE VIENTO MAXIMA...40 MPH

The office that day

Everything else NWS JSJ issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 2, 6:11 AM CDTSpecial Marine WarningJSJ64 min
Jul 2, 6:19 AM CDTSpecial Weather StatementJSJ41 min
Jul 2, 8:49 AM CDTSpecial Weather StatementJSJ41 min
Jul 2, 9:52 AM CDTSpecial Weather StatementJSJ68 min
Jul 2, 9:57 AM CDTAreal Flood AdvisoryJSJ33 min
Jul 2, 10:40 AM CDTAreal Flood AdvisoryJSJ5 hr
Jul 2, 10:45 AM CDTAreal Flood AdvisoryJSJ3 hr
Jul 2, 10:55 AM CDTSpecial Marine WarningJSJ65 min
Jul 2, 11:01 AM CDTSpecial Weather StatementJSJ119 min
Jul 2, 11:11 AM CDTAreal Flood AdvisoryJSJ59 min
Jul 2, 11:33 AM CDTAreal Flood AdvisoryJSJ5 hr
Jul 2, 12:09 PM CDTFlash Flood WarningJSJ5 hr
Jul 2, 12:37 PM CDTSpecial Weather StatementJSJ83 min
Jul 2, 12:56 PM CDTAreal Flood AdvisoryJSJ9 hr
Jul 2, 1:01 PM CDTSpecial Marine WarningJSJ59 min
Jul 2, 1:57 PM CDTSpecial Marine WarningJSJ63 min
Jul 2, 2:37 PM CDTAreal Flood AdvisoryJSJ4 hr
Jul 2, 4:44 PM CDTFlash Flood WarningJSJ5 hr
Jul 2, 4:46 PM CDTAreal Flood AdvisoryJSJ3 hr

Nearby

Flash Flood Warnings in Puerto Rico, 2022Every flash flood warning in 2022

Sources

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