Alert archive / Puerto Rico / Flash Flood Warnings in 2016

Flash Flood Warning 23, NWS JSJ

October 29, 2016

NWS JSJ issued this flash flood warning at Oct 29, 2016, 1:47 PM 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: Oct 29, 2016, 1:47 PM CDT (18:47 UTC)
Expired: Oct 29, 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), 107 km from the middle of the area, began a volume at 18:46 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.

551 
WGCA52 TJSJ 291847
FFWSJU
PRC023-067-093-097-125-292145-
/O.NEW.TJSJ.FF.W.0023.161029T1847Z-161029T2145Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SAN JUAN PR
247 PM AST SAT OCT 29 2016

THE NATIONAL WEATHER SERVICE IN SAN JUAN HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTHWESTERN SAN GERMAN MUNICIPALITY IN PUERTO RICO...
  MARICAO MUNICIPALITY IN PUERTO RICO...
  CABO ROJO MUNICIPALITY IN PUERTO RICO...
  HORMIGUEROS MUNICIPALITY IN PUERTO RICO...
  MAYAGUEZ MUNICIPALITY IN PUERTO RICO...

* UNTIL 545 PM AST
    
* AT 243 PM AST...DOPPLER RADAR INDICATED A THUNDERSTORM PRODUCING
  HEAVY RAIN ACROSS THE WARNED AREA. FLASH FLOODING IS EXPECTED TO
  BEGIN SHORTLY.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  HORMIGUEROS. RIO ROSARIO WILL REACH FLOOD STAGE WITHIN MINUTES OF
  2:45 PM AND CONTINUE RISING WITH RAINFALL EXCEEDING 3 INCHES IN
  ITS BASIN. THIS WILL ALSO CAUSE RIO GUANAJIBO TO OVERFLOW ITS
  BANKS BY AROUND 4 PM AST.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF YOU ARE CLOSE TO THESE RIVERS MOVE TO HIGHER GROUND NOW. ACT
QUICKLY TO PROTECT YOUR LIFE. DO NOT ATTEMPT TO CROSS FLOODED ROADS.

&&

LAT...LON 1816 6701 1817 6706 1812 6709 1810 6711
      1815 6718 1816 6718 1818 6717 1817 6709
      1819 6702

$$

SNELL

1 follow-up statement

914 
WGCA72 TJSJ 292144
FFSSJU

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SAN JUAN PR
544 PM AST SAT OCT 29 2016

PRC023-067-093-097-125-292150-
/O.EXP.TJSJ.FF.W.0023.000000T0000Z-161029T2145Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SAN GERMAN PR-MARICAO PR-CABO ROJO PR-HORMIGUEROS PR-MAYAGUEZ PR-
544 PM AST SAT OCT 29 2016

...THE FLASH FLOOD WARNING FOR NORTHWESTERN SAN GERMAN...MARICAO...
CABO ROJO...HORMIGUEROS AND MAYAGUEZ MUNICIPALITIES WILL EXPIRE AT
545 PM AST...

THE HEAVY RAIN HAS ENDED...AND THE ROSARIO RIVER HAS RETURNED TO
NORMAL FLOW. RUN-OFF INTO THE GUANAJIBO IS EXPECTED TO CONTINUE AND
CAUSE IT TO GO INTO A MINOR FLOOD. THEREFORE A FLOOD WARNING WILL BE
ISSUED.

LAT...LON 1816 6701 1817 6706 1812 6709 1810 6711
      1815 6718 1816 6718 1818 6717 1817 6709
      1819 6702

$$

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
Oct 28, 8:23 PM CDT	Rip Current Statement	JSJ	21 hr
Oct 29, 11:33 AM CDT	Areal Flood Advisory	JSJ	117 min
Oct 29, 11:48 AM CDT	Areal Flood Advisory	JSJ	4 hr
Oct 29, 12:04 PM CDT	Areal Flood Advisory	JSJ	4 hr
Oct 29, 12:13 PM CDT	Areal Flood Advisory	JSJ	2 hr
Oct 29, 12:16 PM CDT	Special Weather Statement	JSJ	59 min
Oct 29, 12:19 PM CDT	Special Weather Statement	JSJ	71 min
Oct 29, 12:44 PM CDT	Areal Flood Advisory	JSJ	3 hr
Oct 29, 12:53 PM CDT	Areal Flood Advisory	JSJ	2 hr
Oct 29, 12:54 PM CDT	Special Weather Statement	JSJ	51 min
Oct 29, 1:24 PM CDT	Areal Flood Advisory	JSJ	3 hr
Oct 29, 2:07 PM CDT	Areal Flood Warning	JSJ	6 hr
Oct 29, 2:37 PM CDT	Areal Flood Warning	JSJ	6 hr
Oct 29, 4:48 PM CDT	Areal Flood Warning	JSJ	14 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; radar from the NEXRAD Level II archive.