Alert archive / Puerto Rico / Flash Flood Warnings in 2015

Flash Flood Warning 3, NWS JSJ

August 22, 2015

NWS JSJ issued this flash flood warning at Aug 22, 2015, 2:57 PM CDT. It was in force for 5 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: Aug 22, 2015, 2:57 PM CDT (19:57 UTC)
Expired: Aug 22, 2015, 7:45 PM CDT
In force: 5 hr
Issued by: NWS JSJ
Area: Storm-based polygon
Flood severity: None

The radar

The San Juan radar (TJUA), 103 km from the middle of the area, began a volume at 20:01 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, in the capitals the NWS used until 2016.

963 
WGCA52 TJSJ 221957
FFWSJU
PRC083-099-131-230045-
/O.NEW.TJSJ.FF.W.0003.150822T1957Z-150823T0045Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SAN JUAN PR
357 PM AST SAT AUG 22 2015

THE NATIONAL WEATHER SERVICE IN SAN JUAN HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SAN SEBASTIAN MUNICIPALITY IN PUERTO RICO...
  LAS MARIAS MUNICIPALITY IN PUERTO RICO...
  MOCA MUNICIPALITY IN PUERTO RICO...

* UNTIL 845 PM AST
    
* AT 351 PM AST...DOPPLER WEATHER RADAR INDICATED SHOWERS AND 
  THUNDERSTORMS PRODUCING HEAVY RAIN ACROSS THE WARNED AREA. PREMA 
  PREMA OFFICIAL FROM SAN SEBASTIAN INDICATED THAT CULEBRINAS RIVER 
  IS FLOODED AT ROADS 125 AND 119 DUE TO RUNOFF FROM PREVIOUS RAINS. 
     
  FOR THOSE REASONS A FLASH FLOOD WARNING WAS ISSUED FOR THESE   
  MUNICIPALITIES UNTIL 845 PM AST. 

FLASH 
  FLOODING IS NOW OCCURING.

* FLASH FLOODING WILL REMAIN OVER MAINLY RURAL AREAS OF SAN
  SEBASTIAN...LAS MARIAS AND MOCA MUNICIPALITIES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 1835 6707 1830 6691 1822 6693 1826 6707
      1827 6706 1827 6704 1830 6704 1831 6706
      1831 6708

$$

JFR

1 follow-up statement

856 
WGCA72 TJSJ 222210
FFSSJU

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SAN JUAN PR
610 PM AST SAT AUG 22 2015

PRC083-099-131-222216-
/O.CAN.TJSJ.FF.W.0003.000000T0000Z-150823T0045Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SAN SEBASTIAN PR-LAS MARIAS PR-MOCA PR-
610 PM AST SAT AUG 22 2015

...THE FLASH FLOOD WARNING FOR SAN SEBASTIAN...LAS MARIAS AND MOCA
MUNICIPALITIES IS CANCELLED...

THE HEAVY RAIN HAS ENDED...AND FLASH FLOODING IS NO LONGER EXPECTED 
TO POSE A THREAT. HOWEVER...CULEBRINAS RIVER IN SAN SEBASTIAN...LAS 
MARIAS AND MOCA REMAIN OUT OF ITS BANK AND FOR THIS REASON AN AREA 
FLOOD WARNING WAS ISSUED FOR THIS RIVER.  

LAT...LON 1835 6707 1830 6691 1822 6693 1826 6707
      1827 6706 1827 6704 1830 6704 1831 6706
      1831 6708

$$

JFR

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
Aug 22, 11:52 AM CDT	Special Weather Statement	JSJ	113 min
Aug 22, 11:57 AM CDT	Areal Flood Advisory	JSJ	3 hr
Aug 22, 12:14 PM CDT	Special Weather Statement	JSJ	61 min
Aug 22, 12:47 PM CDT	Areal Flood Advisory	JSJ	3 hr
Aug 22, 1:41 PM CDT	Areal Flood Advisory	JSJ	3 hr
Aug 22, 5:16 PM CDT	Areal Flood Warning	JSJ	12 hr

Nearby

Flash Flood Warnings in Puerto Rico, 2015 Every flash flood warning in 2015

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.