Flash Flood Warning 9, NWS JSJ

Issued

Apr 28, 2016, 4:47 AM CDT (09:47 UTC)

Expired

Apr 28, 2016, 7:15 AM CDT

In force

2 hr

Issued by

NWS JSJ

Area

Storm-based polygon

Flood severity

None

The San Juan radar (TJUA), 24 km from the middle of the area, began a volume at 09:50 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.

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

361 
WGCA52 TJSJ 280947 CCA
FFWSJU
PRC069-095-109-151-281215-
/O.NEW.TJSJ.FF.W.0009.160428T0947Z-160428T1215Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SAN JUAN PR
547 AM AST THU APR 28 2016

THE NATIONAL WEATHER SERVICE IN SAN JUAN HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  PATILLAS MUNICIPALITY IN PUERTO RICO...
  YABUCOA MUNICIPALITY IN PUERTO RICO...
  HUMACAO MUNICIPALITY IN PUERTO RICO...
  MAUNABO MUNICIPALITY IN PUERTO RICO...

* UNTIL 815 AM AST
    
* AT 540 AM AST...DOPPLER RADAR AND AUTOMATED RAIN GAUGES AS WELL AS
  EMERGENCY MANAGERS ALL INDICATED STRONG THUNDERSTORMS PRODUCING
  HEAVY RAIN MOVING ACROSS THE WARNED AREA. GAUGES ALONG RIO
  GUAYANES SUGGEST WATER LEVELS RAPIDLY RISING. UP TO ONE INCH OF
  RAIN HAS ALREADY FALLEN AND ADDITIONAL AMOUNTS OF AN INCH OR MORE
  CAN BE EXPECTED. FLASH FLOODING HAS BEGUN OF IS EXPECTED TO BEGIN
  SHORTLY. EXCESSIVE RAINFALL OVER THE WARNED AREA WILL CAUSE
  MUDSLIDES NEAR STEEP TERRAIN. THE MUD SLIDE CAN CONSIST OF ROCK...
  MUD...VEGETATION AND OTHER LOOSE MATERIALS.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  YABUCOA...MAUNABO...HUMACAO...EMAJAGUA...PLAYITA...MARTORELL...COMUNAS...
  ROSA SANCHEZ...PALO SECO...EL NEGRO AND CANDELERO ARRIBA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOVE TO HIGHER GROUND NOW. ACT QUICKLY TO PROTECT YOUR LIFE.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING.

STAY AWAY OR BE SWEPT AWAY. RIVER BANKS AND CULVERTS CAN BECOME
UNSTABLE AND UNSAFE.

TURN AROUND...DONT DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.

PLEASE REPORT FLOODING TO YOUR LOCAL LAW ENFORCEMENT AGENCY WHEN YOU
CAN DO SO SAFELY.

&&

LAT...LON 1799 6596 1811 6589 1814 6580 1811 6578
      1809 6580 1806 6580 1806 6582 1805 6584
      1802 6583 1800 6586 1801 6587 1799 6589
      1799 6590 1797 6592 1797 6594

$$

RAM

031 
WGCA72 TJSJ 281207
FFSSJU

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SAN JUAN PR
807 AM AST THU APR 28 2016

PRC069-095-109-151-281216-
/O.EXP.TJSJ.FF.W.0009.000000T0000Z-160428T1215Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
PATILLAS PR-YABUCOA PR-HUMACAO PR-MAUNABO PR-
807 AM AST THU APR 28 2016

...THE FLASH FLOOD WARNING FOR PATILLAS...YABUCOA...HUMACAO AND
MAUNABO MUNICIPALITIES WILL EXPIRE AT 815 AM AST...

FLOOD WATERS HAVE RECEDED...AND ARE NO LONGER EXPECTED TO POSE A
THREAT TO LIFE OR PROPERTY. PLEASE CONTINUE TO HEED ANY ROAD
CLOSURES.

LAT...LON 1799 6596 1811 6589 1814 6580 1811 6578
      1809 6580 1806 6580 1806 6582 1805 6584
      1802 6583 1800 6586 1801 6587 1799 6589
      1799 6590 1797 6592 1797 6594

$$

DS

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

Flash Flood Warnings in Puerto Rico, 2016Every flash flood warning in 2016

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.