Alert archive / Puerto Rico / Flash Flood Warnings in 2012

Flash Flood Warning 14, NWS JSJ

March 30, 2012

NWS JSJ issued this flash flood warning at Mar 30, 2012, 10:37 AM CDT. It was in force for 6 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
Mar 30, 2012, 10:37 AM CDT (15:37 UTC)
Expired
Mar 30, 2012, 4:30 PM CDT
In force
6 hr
Issued by
NWS JSJ
Area
Storm-based polygon
Flood severity
None

The radar

The San Juan radar (TJUA), 44 km from the middle of the area, began a volume at 15:38 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
Mar 30, 11:20 AM CDTFLASH FLOODRio Grande, PRSEVERAL TRIBUTARIES OF THE LA MINA RIVER WHICH FEED INTO THE MAMEYES HAVE GONE OVER HIGHWAY 191 IN THE UPPER AREAS OF EL YUNQUE NATIONAL RAIN FOREST.
Mar 30, 12:55 PM CDTFLASH FLOODFajardo, PRRIO FAJARDO WAS OUT OF ITS BANKS FLOODING ROAD 3 WITH INTERSECTION WITH ROAD 53.

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

The text

As transmitted, in the capitals the NWS used until 2016.

238 
WGCA52 TJSJ 301537
FFWSJU
PRC037-053-089-103-119-301830-
/O.NEW.TJSJ.FF.W.0014.120330T1537Z-120330T1830Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SAN JUAN PR
1137 AM AST FRI MAR 30 2012

THE NATIONAL WEATHER SERVICE IN SAN JUAN HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  THE FOLLOWING MUNICIPALITIES

  IN PUERTO RICO
     CEIBA
     NAGUABO
     FAJARDO
     LUQUILLO
     RIO GRANDE

* UNTIL 230 PM AST

* AT 1134 AM AST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
SHOWERS WITH THUNDERSTORMS PRODUCING VERY HEAVY RAIN ACROSS THESE 
MUNICIPALITIES. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY.

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 1839 6574 1839 6571 1838 6570 1837 6562
      1820 6566 1819 6567 1829 6586 1841 6586

$$

CASTRO

ADDITIONAL INFORMATION CAN BE FOUND AT /USE LOWER CASE LETTERS/:
     HTTP://WWW.WEATHER.GOV/SANJUAN
3 follow-up statements
797 
WGCA72 TJSJ 301651
FFSSJU

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SAN JUAN PR
1251 PM AST FRI MAR 30 2012

PRC037-053-089-103-119-301830-
/O.CON.TJSJ.FF.W.0014.000000T0000Z-120330T1830Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CEIBA PR-NAGUABO PR-FAJARDO PR-LUQUILLO PR-RIO GRANDE PR-
1251 PM AST FRI MAR 30 2012

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 230 PM AST FOR RIO
GRANDE...LUQUILLO...FAJARDO...NAGUABO AND CEIBA MUNICIPALITIES...

AT 1240 PM AST...EMERGENCY MANAGEMENT INDICATES THAT ROUTE 31 IN 
NAGUABO IS FLOODED DUE TO RIO BLANCO OUT OF ITS BANKS. IN 
ADDITION...FOREST SERVICE PERSONNEL AT EL YUNQUE INDICATE SEVERAL 
TRIBUTARIES OF THE LA MINA RIVER WHICH FEED THE MAMEYES RIVER HAVE 
GONE OVER ROUTE 191 IN THE UPPER AREAS OF EL YUNQUE. ALSO...RIVER 
GAGES AT THE ESPIRITU SANTO INDICATE THE RIVER IS OUT OF ITS BANKS 
AT EL VERDE IN RIO GRANDE.  

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.

DO NOT UNDERESTIMATE THE POWER OF FLOOD WATERS. ONLY A FEW INCHES OF
RAPIDLY FLOWING WATER CAN QUICKLY CARRY AWAY YOUR VEHICLE.

&&

LAT...LON 1839 6574 1839 6571 1838 6570 1837 6562
      1820 6566 1819 6567 1829 6586 1841 6586

$$

ROSA

ADDITIONAL INFORMATION CAN BE FOUND AT /USE LOWER CASE LETTERS/:
     HTTP://WWW.WEATHER.GOV/SANJUAN
473 
WGCA52 TJSJ 301824
FFWSJU
PRC037-053-089-103-119-302130-
/O.EXT.TJSJ.FF.W.0014.000000T0000Z-120330T2130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SAN JUAN PR
224 PM AST FRI MAR 30 2012

THE NATIONAL WEATHER SERVICE IN SAN JUAN HAS EXTENDED THE

* FLASH FLOOD WARNING FOR...
  THE FOLLOWING MUNICIPALITIES

  IN PUERTO RICO
     CEIBA
     NAGUABO
     FAJARDO
     LUQUILLO
     RIO GRANDE

* UNTIL 530 PM AST

* AT 218 PM AST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUES 
TO INDICATED SHOWERS WITH THUNDERSTORMS PRODUCING VERY HEAVY RAIN 
ACROSS THESE MUNICIPALITIES. THIS WILL AGGRAVATE THE FLOOD SITUATION 
ACROSS THESE AREAS UNTIL AT LEAST 530 PM. IN ADDITION...MUDSLIDES IN 
STEEP TERRAIN ARE POSSIBLE.

DO NOT UNDERESTIMATE THE POWER OF FLOOD WATERS. ONLY A FEW INCHES OF
RAPIDLY FLOWING WATER CAN QUICKLY CARRY AWAY YOUR VEHICLE.

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 1839 6574 1839 6571 1838 6570 1837 6562
      1820 6566 1819 6567 1829 6586 1841 6586

$$

CASTRO

ADDITIONAL INFORMATION CAN BE FOUND AT /USE LOWER CASE LETTERS/:
     HTTP://WWW.WEATHER.GOV/SANJUAN
068 
WGCA72 TJSJ 302206
FFSSJU

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SAN JUAN PR
606 PM AST FRI MAR 30 2012

PRC037-053-089-103-119-302137-
/O.EXP.TJSJ.FF.W.0014.000000T0000Z-120330T2130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CEIBA PR-NAGUABO PR-FAJARDO PR-LUQUILLO PR-RIO GRANDE PR-
606 PM AST FRI MAR 30 2012

...THE FLASH FLOOD WARNING HAVE BEEN REPLACED BY A FLOOD WARNING FOR 
RIO GRANDE...LUQUILLO...FAJARDO...NAGUABO AND CEIBA MUNICIPALITIES...


LAT...LON 1839 6574 1839 6571 1838 6570 1837 6562
      1820 6566 1819 6567 1829 6586 1841 6586

$$

EM

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

The office that day

Everything else NWS JSJ issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Mar 29, 7:17 PM CDTAreal Flood AdvisoryJSJ8 hr
Mar 29, 7:32 PM CDTAreal Flood AdvisoryJSJ118 min
Mar 29, 8:38 PM CDTFlash Flood WarningJSJ3 hr
Mar 29, 9:33 PM CDTFlash Flood WarningJSJ3 hr
Mar 29, 9:34 PM CDTSpecial Marine WarningJSJ86 min
Mar 29, 10:37 PM CDTSpecial Marine WarningJSJ53 min
Mar 29, 11:27 PM CDTSpecial Marine WarningJSJ93 min
Mar 30, 1:00 AM CDTSpecial Marine WarningJSJ60 min
Mar 30, 3:24 AM CDTAreal Flood AdvisoryJSJ111 min
Mar 30, 7:37 AM CDTAreal Flood AdvisoryJSJ3 hr
Mar 30, 10:03 AM CDTAreal Flood AdvisoryJSJ3 hr
Mar 30, 10:41 AM CDTAreal Flood AdvisoryJSJ3 hr
Mar 30, 11:35 AM CDTAreal Flood AdvisoryJSJ77 min
Mar 30, 11:53 AM CDTAreal Flood AdvisoryJSJ3 hr
Mar 30, 2:09 PM CDTAreal Flood AdvisoryJSJ118 min
Mar 30, 3:20 PM CDTAreal Flood AdvisoryJSJ3 hr
Mar 30, 3:32 PM CDTAreal Flood AdvisoryJSJ3 hr
Mar 30, 3:56 PM CDTSpecial Marine WarningJSJ94 min
Mar 30, 4:27 PM CDTAreal Flood WarningJSJ7 hr
Mar 30, 5:09 PM CDTSpecial Marine WarningJSJ51 min

Nearby

Flash Flood Warnings in Puerto Rico, 2012Every flash flood warning in 2012

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.