Alert archive / Puerto Rico / Flash Flood Warnings in 2016

Flash Flood Warning 2, NWS JSJ

April 23, 2016

NWS JSJ issued this flash flood warning at Apr 23, 2016, 6:18 AM CDT. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Apr 23, 2016, 6:18 AM CDT (11:18 UTC)
Expired: Apr 23, 2016, 9:15 AM CDT
In force: 3 hr
Issued by: NWS JSJ
Area: Storm-based polygon
Flood severity: None

The radar

The San Juan radar (TJUA), 49 km from the middle of the area, began a volume at 11:20 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.

The text

As transmitted.

143 
WGCA52 TJSJ 231118
FFWSJU
PRC053-089-119-231415-
/O.NEW.TJSJ.FF.W.0002.160423T1118Z-160423T1415Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SAN JUAN PR
718 AM AST SAT APR 23 2016

THE NATIONAL WEATHER SERVICE IN SAN JUAN HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  LUQUILLO MUNICIPALITY IN PUERTO RICO...
  FAJARDO MUNICIPALITY IN PUERTO RICO...
  RIO GRANDE MUNICIPALITY IN PUERTO RICO...

* UNTIL 1015 AM AST
    
* AT 714 AM AST...DOPPLER RADAR INDICATED A THUNDERSTORM PRODUCING
  PERSISTENT HEAVY RAINFALL ACROSS THE WARNED AREA. BETWEEN TWO AND
  THREE INCHES OF RAIN HAVE ALREADY FALLEN. FLASH FLOODING IS LIKELY
  IN URBAN AREAS OF LUQUILLO AND FAJARDO AND ALONG PORTIONS OF THE
  RIO MAMEYES...AND RIO FAJARDO AND THEIR TRIBUTARIES. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOVE TO HIGHER GROUND NOW. ACT QUICKLY TO PROTECT YOUR LIFE. 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 1838 6575 1839 6572 1837 6571 1836 6567
      1838 6565 1837 6564 1839 6562 1838 6561
      1835 6564 1835 6563 1830 6563 1827 6568
      1829 6569 1827 6571 1832 6579 1840 6577

$$

CAM/ER

1 follow-up statement

182 
WGCA72 TJSJ 231415
FFSSJU

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SAN JUAN PR
1015 AM AST SAT APR 23 2016

PRC053-089-119-231422-
/O.EXP.TJSJ.FF.W.0002.000000T0000Z-160423T1415Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
LUQUILLO PR-FAJARDO PR-RIO GRANDE PR-
1015 AM AST SAT APR 23 2016

...THE FLASH FLOOD WARNING FOR LUQUILLO...FAJARDO AND RIO GRANDE
MUNICIPALITIES WILL EXPIRE AT 1015 AM AST...

THE HEAVY RAIN HAS ENDED AND NO ADDITIONAL HEAVY RAINFALL IS
EXPECTED OVER THE NEXT FEW HOURS. HOWEVER...A FLOOD ADVISORY REMAINS
IN EFFECT DUE TO URBAN AND SMALL STREAM FLOODING IN PORTIONS OF
FAJARDO...RIO GRANDE AND LUQUILLO. 

RESIDENTS AND MOTORIST ACROSS THESE AREAS SHOULD BE ALERT TO PONDING
OF WATER ON ROADWAYS. PLEASE CONTINUE TO HEED ANY ROAD CLOSURES. 

LAT...LON 1838 6575 1839 6572 1837 6571 1836 6567
      1838 6565 1837 6564 1839 6562 1838 6561
      1835 6564 1835 6563 1830 6563 1827 6568
      1829 6569 1827 6571 1832 6579 1840 6577

$$

CAM/ER

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.

Issued	Product	Office	Lasted
Apr 22, 9:12 PM CDT	Areal Flood Advisory	JSJ	6 hr
Apr 23, 1:48 AM CDT	Flash Flood Warning	JSJ	3 hr
Apr 23, 3:33 AM CDT	Areal Flood Advisory	JSJ	3 hr
Apr 23, 5:37 AM CDT	Areal Flood Advisory	JSJ	113 min
Apr 23, 6:28 AM CDT	Areal Flood Advisory	JSJ	3 hr
Apr 23, 8:52 AM CDT	Special Marine Warning	JSJ	83 min
Apr 23, 9:11 AM CDT	Areal Flood Advisory	JSJ	3 hr
Apr 23, 10:38 AM CDT	Special Marine Warning	JSJ	112 min
Apr 23, 12:02 PM CDT	Areal Flood Advisory	JSJ	3 hr
Apr 23, 12:38 PM CDT	Areal Flood Advisory	JSJ	3 hr
Apr 23, 1:04 PM CDT	Areal Flood Advisory	JSJ	3 hr
Apr 23, 2:19 PM CDT	Small Craft Advisory	JSJ	6 hr
Apr 23, 3:07 PM CDT	Areal Flood Advisory	JSJ	113 min

Nearby

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

Sources

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