Alert archive / Puerto Rico / Flash Flood Warnings in 2010

Flash Flood Warning 117, NWS JSJ

October 7, 2010

NWS JSJ issued this flash flood warning at Oct 7, 2010, 8:04 PM CDT. It was in force for 5 hr. 2 reports 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: Oct 7, 2010, 8:04 PM CDT (01:04 UTC)
Expired: Oct 8, 2010, 1:00 AM CDT
In force: 5 hr
Issued by: NWS JSJ
Area: Storm-based polygon
Flood severity: None

The radar

The San Juan radar (TJUA), 20 km from the middle of the area, began a volume at 01:07 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

Time	Report	Where	Remark
Oct 7, 9:34 PM CDT	FLASH FLOOD	Salinas, PR	RESIDENCE FLOODED ON HIGHWAY 3 ENTERING BY THE BAKERY LA GOMERA VILLA LARES
Oct 7, 10:30 PM CDT	FLASH FLOOD	Salinas, PR	HOME FLOODED ON HIGHWAY 3 BARRIADA LOPEZ -- HIGHWAY 3 ENROUTE TO GUAYAMA IMPASSABLE

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 90 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, in the capitals the NWS used until 2016.

659 
WGCA52 TJSJ 080104
FFWSJU
PRC009-035-043-057-123-133-080300-
/O.NEW.TJSJ.FF.W.0117.101008T0104Z-101008T0300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SAN JUAN PR
904 PM AST THU OCT 7 2010

THE NATIONAL WEATHER SERVICE IN SAN JUAN HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  THE FOLLOWING MUNICIPALITIES

  IN PUERTO RICO
     COAMO
     CAYEY
     AIBONITO
     GUAYAMA
     SALINAS
     SANTA ISABEL

* UNTIL 1100 PM AST

* AT 903 PM AST...THE DOPPLER WEATHER RADAR AND NATIONAL WEATHER 
SERVICE METEOROLOGISTS DETECTED SHOWERS AND STRONG THUNDERSTORMS 
WITH VERY HEAVY RAINFALL QUICKLY HEADING TOWARDS THE WARNED AREA. 
DUE TO VERY HEAVY RAINFALL ACROSS THESE SECTIONS OF PUERTO RICO FOR 
THE LAST 24 HOURS...THIS ADDITIONAL RAINFALL WILL LIKELY RESULT IN 
AREAS OF FLASH FLOODING. RESIDENTS IN FLOOD PRONE AREAS SHOULD MOVE 
TO HIGHER GROUND IMMEDIATELY AND SHOULD NOT ATTEMPT TO CROSS A 
FLOODED ROADWAY. ADDITIONALLY... MUDSLIDES WILL BE POSSIBLE IN AREAS 
OF STEEP TERRAIN. GIVEN ALL THE RECENT FLOODING PROBLEMS... ANY 
ADDITIONAL RAINFALL WILL ONLY AGGRAVATE THE SITUATION.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS
SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY
AUTOMOBILE.

&&

LAT...LON 1809 6640 1813 6625 1814 6607 1803 6608
      1799 6623 1796 6638

$$

EM

ADDITIONAL INFORMATION CAN BE FOUND AT /USE LOWER CASE LETTERS/:
     HTTP://WWW.WEATHER.GOV/SANJUAN

2 follow-up statements

914 
WGCA52 TJSJ 080259
FFWSJU
PRC009-035-043-057-123-133-080600-
/O.EXT.TJSJ.FF.W.0117.000000T0000Z-101008T0600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SAN JUAN PR
1059 PM AST THU OCT 7 2010

THE NATIONAL WEATHER SERVICE IN SAN JUAN HAS EXTENDED THE

* FLASH FLOOD WARNING FOR...
  THE FOLLOWING MUNICIPALITIES

  IN PUERTO RICO
     COAMO
     CAYEY
     AIBONITO
     GUAYAMA
     SALINAS
     SANTA ISABEL

* UNTIL 200 AM AST

* AT 1040 PM AST...LOCAL EMERGENCY MANAGERS OFFICIALS REPORTED THAT 
THE RIO NIGUA AND RIO MAJADA CONTINUES OUT OF ITS BANKS AT SALINAS. 
IN ADDITION...THE DOPPLER WEATHER RADAR INDICATED MODERATE RAIN IN 
THE ADVISORY AREA. MORE SHOWERS AND THUNDERSTORMS OVER THE CARIBBEAN 
WATERS...SOUTH OF PUERTO RICO COULD MOVE OVER THE SOUTHERN PORTIONS 
OF PUERTO RICO OVER THE NEXT HOUR OR TWO.  ADDITIONAL RAINFALL WILL 
LIKELY RESULT IN AREAS OF FLASH FLOODING. RESIDENTS IN FLOOD PRONE 
AREAS SHOULD MOVE TO HIGHER GROUND IMMEDIATELY AND SHOULD NOT 
ATTEMPT TO CROSS A FLOODED ROADWAY. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. MOVE
UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS
SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS
SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY
AUTOMOBILE.

&&

LAT...LON 1809 6640 1813 6625 1814 6607 1803 6608
      1799 6623 1796 6638

$$

ER

ADDITIONAL INFORMATION CAN BE FOUND AT /USE LOWER CASE LETTERS/:
     HTTP://WWW.WEATHER.GOV/SANJUAN

780 
WGCA72 TJSJ 080559
FFSSJU

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SAN JUAN PR
159 AM AST FRI OCT 8 2010

PRC009-035-043-057-123-133-080606-
/O.EXP.TJSJ.FF.W.0117.000000T0000Z-101008T0600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
COAMO PR-CAYEY PR-AIBONITO PR-GUAYAMA PR-SALINAS PR-SANTA ISABEL PR-
159 AM AST FRI OCT 8 2010

...THE FLASH FLOOD WARNING WILL EXPIRE AT 200 AM AST FOR SANTA
ISABEL...SALINAS...GUAYAMA...AIBONITO...CAYEY AND COAMO
MUNICIPALITIES...

AT 1:55 AM AST...DOPPLER WEATHER RADAR INDICATED THAT THE RAIN HAS 
BECOME SCATTERED AND MUCH LIGHTER. THEREFORE...THE FLASH FLOOD 
WARNING IS ALLOWED TO EXPIRE. HOWEVER...RESIDENTS AND MOTORISTS 
ACROSS THESE AREAS SHOULD HOWEVER BE ALERT TO PONDING OF WATER ON 
ROADWAYS AND ALLOW TIME FOR STREAMS...CREEKS AND RIVERS TO RETURN TO 
NORMAL LEVELS.

A FLASH FLOOD WATCH REMAINS IN EFFECT FOR ALL OF PUERTO RICO AND THE 
U.S. VIRGIN ISLANDS THROUGH SATURDAY MORNING.


LAT...LON 1809 6640 1813 6625 1814 6607 1803 6608
      1799 6623 1796 6638

$$

ER

ADDITIONAL INFORMATION CAN BE FOUND AT /USE LOWER CASE LETTERS/:
     HTTP://WWW.WEATHER.GOV/SANJUAN

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 Oct 7, 2:13 PM CDT, 5 hours 51 minutes earlier.

Area forecast discussion, Oct 7, 2:13 PM CDT, 5 hours 51 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN JUAN PR
313 PM AST THU OCT 7 2010

.SYNOPSIS...TROPICAL STORM OTTO CONTINUES TO MOVES VERY SLOWLY
NORTH OF PUERTO RICO. OTTO IS EXPECTED TO ACCELERATED TOWARDS THE
NORTH NORTHEAST THE NEXT TWO DAYS....MOVING AWAY FROM THE LOCAL
AREA. A HIGH PRESSURE SYSTEM WILL BUILD ACROSS THE WESTERN
ATLANTIC STARTING SUNDAY. A MORE TYPICAL WIND FLOW WILL ESTABLISH
ACROSS THE LOCAL AREA DURING THE WEEKEND.

&&

.DISCUSSION...PERSISTENT RAINFALL...HEAVY AT TIMES...HAS BEEN
AFFECTING PUERTO RICO AND THE U.S. VIRGIN ISLANDS DURING THE LAST
12 HOURS TO 18 HOURS. THIS PERSISTENT RAINFALL HAS BEEN PRODUCING
NUMEROUS FLASH FLOODING...RIVERS OUT OF ITS BANKS..AND MUDSLIDES
ACROSS MUCH OF PUERTO RICO AS WELL ACROSS THE U.S. VIRGIN ISLANDS.
THE LARGE CIRCULATION ASSOCIATED WITH TROPICAL STORM OTTO...IS
BRINGING DEEP TROPICAL MOISTURE ACROSS THE LOCAL AREA...IN A
SOUTH TO SOUTHWEST WIND FLOW. THIS MOIST ENVIRONMENT IS EXPECTED
TO CONTINUE AT LEAST THROUGH FRIDAY AFTERNOON. THEREFORE...THE
FLASH FLOOD WATCH HAS BEEN EXTENDED UNTIL 600 PM AST FRIDAY.

OTTO IS EXPECTED TO ACCELERATED TOWARD THE NORTHEAST DURING THE
NEXT 24 TO 48 HOURS. A SURFACE HIGH PRESSURE SYSTEM WILL BUILD
ACROSS THE WESTERN ATLANTIC SUNDAY...CREATING A MORE SOUTHEAST
WIND FLOW ACROSS THE LOCAL AREA. ALSO...A DRIER AIR IS EXPECTED TO
MOVES ACROSS THE LOCAL AREA. ALTHOUGH DRIER AIR IS
EXPECTED...ENOUGH MOISTURE WILL LINGER ACROSS THE LOCAL AREA
DURING THE WEEKEND TO PRODUCE THE DEVELOPMENT OF SHOWERS AND
THUNDERSTORMS EACH AFTERNOON...MAINLY ACROSS THE WESTERN INTERIOR
AND NORTHWEST SECTION OF PUERTO RICO. STAY TUNED FOR THE LATEST
INFORMATION ABOUT THIS WET SCENARIO.

&&

.AVIATION...PERIODS OF MVFR CONDITIONS WILL CONTINUE ACROSS ALL
TAF SITES TONIGHT...IN PASSING SHRA AND POSSIBLE TSRA.

&&

.MARINE...HAZARDOUS MARINE CONDITIONS WILL CONTINUE ACROSS ALL
COASTAL WATERS AT LEAST THROUGH FRIDAY NIGHT...AS TROPICAL STORM
OTTO CONTINUES TO LINGER NORTH OF THE AREA.

&&

.HYDROLOGY...MOST RIVERS IN PUERTO RICO CONTINUES VERY HIGH..WITH
RIO CIBUCO...RIO LA PLATA...RIO GRANDE DE MANATI...RIO
GUANAJIBO...AND RIO CULEBRINAS ABOVE FLOOD STAGE. SEVERAL FLOOD
WARNINGS ARE IN EFFECTS ALONG THIS RIVERS AND TRIBUTARIES...AND
RIVERS ARE EXPECTED TO REMAIN HIGH AS ANOTHER ROUND OF SHOWERS IS
EXPECTED TO AFFECT PUERTO RICO THE REST OF TONIGHT AND TOMORROW.

&&

.PRELIMINARY POINT TEMPS/POPS...
SJU  77  89  77  88 /  50  50  40  50
STT  79  89  79  87 /  80  80  50  40

&&

.SJU WATCHES/WARNINGS/ADVISORIES...
PR...FLASH FLOOD WATCH THROUGH FRIDAY AFTERNOON FOR CENTRAL INTERIOR-
     CULEBRA-EASTERN INTERIOR-MAYAGUEZ AND VICINITY-NORTH
     CENTRAL-NORTHEAST-NORTHWEST-PONCE AND VICINITY-SAN JUAN AND
     VICINITY-SOUTHEAST-SOUTHWEST-VIEQUES-WESTERN INTERIOR.

 SCA...AMZ710...712...715...722...725...732...735...741...742...745.

VI...FLASH FLOOD WATCH THROUGH FRIDAY AFTERNOON FOR ST CROIX-ST.
     THOMAS/ST. JOHN/ADJACENT ISLANDS.

 SCA...AMZ710...712...715...722...725...732...735...741...742...745.

 &&

64/71

Hazardous weather outlook, Oct 7, 5:52 AM CDT, 14 hours 12 minutes before

HAZARDOUS WEATHER OUTLOOK FOR PUERTO RICO AND THE U.S. VIRGIN...DELAYED
ISLANDS
NATIONAL WEATHER SERVICE SAN JUAN PR
652 AM AST THU OCT 7 2010

AMZ710>745-PRZ001>013-081100-
SAN JUAN AND VICINITY-NORTHEAST-SOUTHEAST-EASTERN INTERIOR-
NORTH CENTRAL-CENTRAL INTERIOR-PONCE AND VICINITY-NORTHWEST-
WESTERN INTERIOR-MAYAGUEZ AND VICINITY-SOUTHWEST-CULEBRA-VIEQUES-
THE NEARSHORE AND OFF SHORE ATLANTIC AND CARIBBEAN COASTAL WATERS-
652 AM AST THU OCT 7 2010

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PUERTO RICO AND THE
ADJACENT COASTAL WATERS.

.DAY ONE...TODAY AND TONIGHT
SUB TROPICAL STORM OTTO IS MOVING VERY SLOWLY NORTHWARD WHICH IS
HOLDING A WIDE BAND OF MOISTURE FROM SOUTH AMERICA ACROSS THE
CARIBBEAN AND PUERTO RICO. SHOWERS AND THUNDERSTORMS WILL STREAM
ACROSS THE ISLAND BRINGING WIDESPREAD INTERMITTENT HEAVY RAINS
AND FLOODING.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY
HEAVY RAINS IN THE BAND OF CONVECTION FROM OTTO WILL CONTINUE AT
LEAST THROUGH FRIDAY AND SOME HEAVY RAINS MAY CONTINUE THROUGH
SATURDAY.

.SPOTTER INFORMATION STATEMENT...REPORTS OF VERY HEAVY RAIN AND/OR
MAJOR FLOODING ARE WELCOME.

AMZ715-725-VIZ001-002-081100-
ST. THOMAS ST. JOHN ADJACENT ISLANDS-ST CROIX-
NEARSHORE ATLANTIC AND ADJACENT CARIBBEAN COASTAL WATERS-
652 AM AST THU OCT 7 2010

THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE U.S. VIRGIN ISLANDS AND
THE ADJACENT COASTAL WATERS.

.DAY ONE...TODAY AND TONIGHT
SUB TROPICAL STORM OTTO IS MOVING VERY SLOWLY NORTHWARD WHICH IS
HOLDING A WIDE BAND OF MOISTURE FROM SOUTH AMERICA ACROSS THE
CARIBBEAN AND THE U.S. VIRGIN ISLANDS. SHOWERS AND THUNDERSTORMS WILL
STREAM ACROSS THE ISLANDS BRINGING WIDESPREAD INTERMITTENT HEAVY
RAINS AND FLOODING.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY
HEAVY RAINS IN THE BAND OF CONVECTION FROM OTTO WILL CONTINUE AT
LEAST THROUGH FRIDAY AND SOME HEAVY RAINS MAY CONTINUE THROUGH
SATURDAY.

.SPOTTER INFORMATION STATEMENT...REPORTS OF VERY HEAVY RAIN AND/OR
MAJOR FLOODING ARE WELCOME.

In the hours before

Special weather statement, Oct 7, 2:30 PM CDT, 5 hours 34 minutes before

PRC015-025-029-035-037-053-057-063-069-077-085-089-095-103-109-119-
129-147-151-072030-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SAN JUAN PR
330 PM AST THU OCT 7 2010

THE NATIONAL WEATHER SERVICE IN SAN JUAN HAS ISSUED A SPECIAL WEATHER
STATEMENT EFFECTIVE UNTIL 430 PM AST FOR PEOPLE IN THE FOLLOWING
MUNICIPALITIES
IN PUERTO RICO
     CAGUAS...CAYEY...JUNCOS...GURABO...SAN LORENZO...LAS PIEDRAS...
     ARROYO...LUQUILLO...PATILLAS...MAUNABO...NAGUABO...CEIBA...
     CANOVANAS...GUAYAMA...FAJARDO...HUMACAO...RIO GRANDE...YABUCOA
     AND VIEQUES

AT 324 PM AST NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
STRONG THUNDERSTORMS OVER OLIMPO...OR ABOUT 3 MILES NORTH OF
GUAYAMA...MOVING NORTHEAST AT 30 MPH. THESE THUNDERSTORMS WILL BE
CAPABLE OF PRODUCING WIND GUSTS TO 55 MPH...TORRENTIAL DOWNPOURS AND
CLOUD TO GROUND LIGHTNING.

Local storm report, Oct 7, 2:46 PM CDT, 5 hours 18 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SAN JUAN PR
346 PM AST THU OCT 07 2010

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

0327 PM     TSTM WND GST     CHARLOTTE AMALIE        18.34N 64.93W
10/07/2010  M38 MPH          SAINT THOMAS       VI   ASOS

&&

LROSA

Special weather statement, Oct 7, 2:57 PM CDT, 5 hours 7 minutes before

PRC015-025-029-035-037-053-057-063-069-077-085-089-095-103-109-119-12
9-147-151-072030-

COMUNICADO ESPECIAL SOBRE LAS CONDICIONES DEL TIEMPO SERVICIO
NACIONAL DE METEOROLOGIA SAN JUAN PR
330 PM AST JUEVES 7 DE OCTUBRE DE 2010

EL SERVICIO NACIONAL DE METEOROLOGIA EN SAN JUAN HA EMITIDO UN
COMUNICADO ESPECIAL SOBRE LAS CONDICIONES DEL TIEMPO EN EFECTO HASTA
LAS 430 PM AST PARA LAS PERSONAS EN LOS SIGUIENTES MUNICIPIOS

EN PUERTO RICO
     CAGUAS...CAYEY...JUNCOS...GURABO...SAN LORENZO...LAS PIEDRAS...
ARROYO...LUQUILLO...PATILLAS...MAUNABO...NAGUABO...CEIBA...
CANOVANAS...GUAYAMA...FAJARDO...HUMACAO...RIO GRANDE...YABUCOA
Y VIEQUES

A LAS 324 PM AST...EL RADAR DOPPLER DEL SNM DETECTO TRONADAS FUERTES
SOBRE OLIMPO...O COMO A 3 MILLAS AL NORTE DE GUAYAMA...MOVIENDOSE AL
NORESTE A 30 MPH. ESTAS TRONADAS SERAN CAPACES DE PRODUCIR VIENTOS
DE HASTA 55 MPH...AGUACEROS TORRENCIALES Y RELAMPAGOS DE NUBE A
SUELO.

Local storm report, Oct 7, 4:01 PM CDT, 4 hours 3 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SAN JUAN PR
501 PM AST THU OCT 07 2010

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

0432 PM     TSTM WND GST     CHARLOTTE AMALIE        18.34N 64.93W
10/07/2010  M38 MPH          SAINT THOMAS       VI   ASOS

&&

LROSA

Special weather statement, Oct 7, 4:24 PM CDT, 3 hours 40 minutes before

PRC007-009-015-019-025-029-031-035-041-043-045-057-063-075-077-085-
095-109-113-123-129-133-139-149-151-072230-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SAN JUAN PR
524 PM AST THU OCT 7 2010

THE NATIONAL WEATHER SERVICE IN SAN JUAN HAS ISSUED A SPECIAL WEATHER
STATEMENT EFFECTIVE UNTIL 630 PM AST FOR PEOPLE IN THE FOLLOWING
MUNICIPALITIES
IN PUERTO RICO
     CAGUAS...CIDRA...COAMO...CAYEY...COMERIO...AIBONITO...AGUAS
     BUENAS...BARRANQUITAS...JUNCOS...GURABO...SAN LORENZO...
     VILLALBA...TRUJILLO ALTO...LAS PIEDRAS...ARROYO...PATILLAS...
     MAUNABO...CANOVANAS...GUAYAMA...CAROLINA...JUANA DIAZ...PONCE...
     SALINAS...SANTA ISABEL AND YABUCOA

AT 520 PM AST...DOPPLER RADAR IMAGERY INDICATED A LINE OF SHOWERS
AND THUNDERSTORMS MOVING TO THE EAST AROUND 30 MPH. THIS LINE WILL
BE CAPABLE OF PRODUCING WIND GUSTS TO 50 MPH AS WELL AS TORRENTIAL
DOWNPOURS AND FREQUENT CLOUD TO GROUND LIGHTNING.

INTENSE LIGHTNING IS REPORTED WITH THIS STORM. IF OUTDOORS...STAY
AWAY FROM ISOLATED HIGH OBJECTS SUCH AS TREES. MOVE INDOORS IF
POSSIBLE. WHEN INDOORS...STAY AWAY FROM WINDOWS AND DOORS AND AVOID
USING TELEPHONES UNLESS IT IS AN EMERGENCY. TRY TO UNPLUG UNNECESSARY
ELECTRICAL APPLIANCES BEFORE THE THUNDERSTORM APPROACHES.

Special weather statement, Oct 7, 4:29 PM CDT, 3 hours 35 minutes before

PRC007-009-015-019-025-029-031-035-041-043-045-057-063-075-077-085-09
5-109-113-123-129-133-139-149-151-072230-

COMUNICADO ESPECIAL SOBRE LAS CONDICIONES DEL TIEMPO SERVICIO
NACIONAL DE METEOROLOGIA SAN JUAN PR
524 PM AST JUEVES 7 DE OCTUBRE DE 2010

EL SERVICIO NACIONAL DE METEOROLOGIA EN SAN JUAN HA EMITIDO UN
COMUNICADO ESPECIAL SOBRE LAS CONDICIONES DEL TIEMPO EN EFECTO HASTA
LAS 630 PM AST PARA LAS PERSONAS EN LOS SIGUIENTES MUNICIPIOS

EN PUERTO RICO

CAGUAS...CIDRA...COAMO...CAYEY...COMERIO...AIBONITO...AGUAS
BUENAS...BARRANQUITAS...JUNCOS...GURABO...SAN LORENZO...
VILLALBA...TRUJILLO ALTO...LAS PIEDRAS...ARROYO...PATILLAS...
MAUNABO...CANOVANAS...GUAYAMA...CAROLINA...JUANA DIAZ...PONCE...
SALINAS...SANTA ISABEL Y YABUCOA

A LAS 520 PM AST...EL RADAR DOPPLER DEL SNM DETECTO UNA LINEA DE
AGUACEROS Y TRONADAS MOVIENDOSE AL ESTE A ALREDEDOR DE 30 MPH. ESTA
LINEA SERA CAPAZ DE PRODUCIR RAFAGAS DE VIENTO DE HASTA 50 MPH AL
IGUAL QUE AGUACEROS TORRENCIALES Y RELAMPAGOS FRECUENTES DE NUBE A
SUELO.

The office that day

Everything else NWS JSJ issued on the same UTC day.

Issued	Product	Office	Lasted
Oct 7, 9:25 PM CDT	Areal Flood Advisory	JSJ	4 hr
Oct 7, 11:29 PM CDT	Areal Flood Warning	JSJ	6 hr
Oct 7, 11:30 PM CDT	Flash Flood Warning	JSJ	3 hr
Oct 8, 12:14 AM CDT	Areal Flood Advisory	JSJ	3 hr
Oct 8, 12:24 AM CDT	Flash Flood Warning	JSJ	3 hr
Oct 8, 1:16 AM CDT	Areal Flood Advisory	JSJ	6 hr
Oct 8, 2:10 AM CDT	Flash Flood Warning	JSJ	3 hr
Oct 8, 3:53 AM CDT	Flash Flood Warning	JSJ	3 hr
Oct 8, 5:32 AM CDT	Areal Flood Warning	JSJ	18 hr
Oct 8, 6:19 AM CDT	Flash Flood Warning	JSJ	4 hr
Oct 8, 6:42 AM CDT	Flash Flood Warning	JSJ	4 hr
Oct 8, 7:36 AM CDT	Areal Flood Warning	JSJ	4 hr
Oct 8, 9:03 AM CDT	Flash Flood Warning	JSJ	4 hr
Oct 8, 9:56 AM CDT	Small Craft Advisory	JSJ	19 hr
Oct 8, 10:21 AM CDT	Areal Flood Warning	JSJ	3 hr
Oct 8, 11:29 AM CDT	Areal Flood Warning	JSJ	6 hr
Oct 8, 11:29 AM CDT	Areal Flood Warning	JSJ	12 hr
Oct 8, 12:24 PM CDT	Special Marine Warning	JSJ	2 hr
Oct 8, 12:41 PM CDT	Areal Flood Warning	JSJ	12 hr

Nearby

Flash Flood Warnings in Puerto Rico, 2010 Every flash flood warning in 2010

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.