Alert archive / Puerto Rico / Flash Flood Warnings in 2016

Flash Flood Warning 5, NWS JSJ

April 26, 2016

NWS JSJ issued this flash flood warning at Apr 26, 2016, 1:43 PM CDT. It was in force for 3 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: Apr 26, 2016, 1:43 PM CDT (18:43 UTC)
Expired: Apr 26, 2016, 4:45 PM CDT
In force: 3 hr
Issued by: NWS JSJ
Area: Storm-based polygon
Flood severity: None

The radar

The San Juan radar (TJUA), 111 km from the middle of the area, began a volume at 18:44 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
Apr 26, 2:00 PM CDT	FLASH FLOOD	Aguadilla, PR	ROAD 459 FLOODED AS IT APPROACHES INTER-AMERICAN UNIVERSITY.
Apr 26, 2:00 PM CDT	FLASH FLOOD	Aguadilla, PR	ROAD 467 COMPLETELY FLOODED WHEN IT INTERSECTS WITH ROAD 107.

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

The text

As transmitted.

618 
WGCA52 TJSJ 261843
FFWSJU
PRC005-071-099-115-262145-
/O.NEW.TJSJ.FF.W.0005.160426T1843Z-160426T2145Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SAN JUAN PR
243 PM AST TUE APR 26 2016

THE NATIONAL WEATHER SERVICE IN SAN JUAN HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  ISABELA MUNICIPALITY IN PUERTO RICO...
  QUEBRADILLAS MUNICIPALITY IN PUERTO RICO...
  AGUADILLA MUNICIPALITY IN PUERTO RICO...
  MOCA MUNICIPALITY IN PUERTO RICO...

* UNTIL 545 PM AST

* AT 242 PM AST...DOPPLER RADAR INDICATED HEAVY RAIN ACROSS THE
  WARNED AREA. UP TO TWO INCHES OF RAIN HAVE ALREADY FALLEN. FLASH
  FLOODING IS EXPECTED TO BEGIN SHORTLY.

ADDITIONAL RAINFALL AMOUNTS OF 2 TO 3 INCHES ARE POSSIBLE IN THE
WARNED AREA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 1851 6702 1849 6698 1849 6694 1848 6692
      1841 6692 1840 6715 1843 6715 1846 6717
      1848 6717 1850 6714 1852 6710

$$

SNELL

1 follow-up statement

470 
WGCA72 TJSJ 262144
FFSSJU

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SAN JUAN PR
544 PM AST TUE APR 26 2016

PRC005-071-099-115-262153-
/O.EXP.TJSJ.FF.W.0005.000000T0000Z-160426T2145Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
ISABELA PR-QUEBRADILLAS PR-AGUADILLA PR-MOCA PR-
544 PM AST TUE APR 26 2016

...THE FLASH FLOOD WARNING FOR ISABELA...QUEBRADILLAS...AGUADILLA AND
MOCA MUNICIPALITIES WILL EXPIRE AT 545 PM AST...

THE HEAVY RAIN HAS ENDED...AND FLOODING IS NO LONGER EXPECTED TO POSE
A THREAT. DRIVERS SHOULD BEWARE OF PONDING IN POORLY DRAINED AREAS.

LAT...LON 1851 6702 1849 6698 1849 6694 1848 6692
      1841 6692 1840 6715 1843 6715 1846 6717
      1848 6717 1850 6714 1852 6710

$$

SNELL

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 26, 12:54 PM CDT	Areal Flood Advisory	JSJ	3 hr
Apr 26, 1:48 PM CDT	Special Weather Statement	JSJ	87 min
Apr 26, 1:49 PM CDT	Special Weather Statement	JSJ	86 min
Apr 26, 3:08 PM CDT	Areal Flood Advisory	JSJ	3 hr

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; local storm reports from the same archive; radar from the NEXRAD Level II archive.