Flash Flood Warning 82, NWS JSJ

Issued

Jul 16, 2011, 1:34 PM CDT (18:34 UTC)

Expired

Jul 16, 2011, 5:00 PM CDT

In force

3 hr

Issued by

NWS JSJ

Area

Storm-based polygon

Flood severity

None

The San Juan radar (TJUA), 32 km from the middle of the area, began a volume at 18:37 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.

604 
WGCA52 TJSJ 161834
FFWSJU
PRC127-139-162030-
/O.NEW.TJSJ.FF.W.0082.110716T1834Z-110716T2030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SAN JUAN PR
234 PM AST SAT JUL 16 2011

THE NATIONAL WEATHER SERVICE IN SAN JUAN HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  THE FOLLOWING MUNICIPALITIES

  IN PUERTO RICO
     TRUJILLO ALTO
     SAN JUAN

* UNTIL 430 PM AST

* AT 219 PM AST...DOPPLER RADAR INDICATED SHOWERS AND THUNDERSTORMS 
RE-DEVELOPING AND MOVING OVER THE WARNED AREA. THESE AREAS OF 
SHOWERS AND THUNDERSTORMS HAVE THE CAPABILITY OF PRODUCING MODERATE 
TO HEAVY RAINFALL WHICH WILL LEAD TO RAPID RISES ON RIVERS...STREAMS 
AND CREEKS THROUGH AT LEAST 430 PM AST. THE RIO PIEDRAS RIVER HAS 
ALREADY OVERFLOWED ITS BANKS FROM RUNOFF FROM AN INTENSE 
THUNDERSTORM EARLIER THIS AFTERNOON AND CONTINUES TO RISE.

FOR THE RIO PIEDRAS NEAR HATO REY- RPOP4
     FLOOD STAGE - 15 FEET.
     AT 219 PM AST THE USGS SENSOR INDICATED THE RIVER HAD RISEN     
     TO 16.80 FEET. MODERATE FLOODING IS FORECAST.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...URBAN AREAS...HIGHWAYS...STREETS AND
UNDERPASSES. ADDITIONALLY...ROADS AND LANDS ALONG THE BANKS OF
CREEKS...STREAMS AND OTHER LOW LYING AND POOR DRAINAGE AREAS ARE
SUBJECT TO FLOODING. MOTORISTS ARE URGED TO AVOID ROADS WHERE
EXCESSIVE PONDING IS OBSERVED.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS
SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY
AUTOMOBILE.

&&

LAT...LON 1847 6612 1848 6607 1832 6594 1829 6605

$$

AAS

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

253 
WGCA52 TJSJ 162030
FFWSJU
PRC127-139-162200-
/O.EXT.TJSJ.FF.W.0082.000000T0000Z-110716T2200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SAN JUAN PR
430 PM AST SAT JUL 16 2011

THE NATIONAL WEATHER SERVICE IN SAN JUAN HAS EXTENDED THE

* FLASH FLOOD WARNING FOR...
  THE FOLLOWING MUNICIPALITIES

  IN PUERTO RICO
     TRUJILLO ALTO
     SAN JUAN

* UNTIL 600 PM AST

* AT 421 PM AST...WEATHER DOPPLER RADAR INDICATED HEAVY SHOWER 
ACTIVITY ACROSS PARTS OF THE WARNED AREA. ADDITIONAL SHOWERS AND 
THUNDERSTORMS...SOME OF THEM WITH EMBEDDED HEAVY DOWNPOURS...ARE 
EXPECTED THROUGH THE AFTERNOON HOURS. THIS RAINFALL IN ADDITION TO 
THE RAINFALL THAT HAS ALREADY OCCURRED...WILL LEAD TO RAPID RISES
ON RIO PIEDRAS THROUGH AT LEAST 600 PM AST.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY.

&&

LAT...LON 1847 6612 1848 6607 1832 6594 1829 6605

$$

MARTINEZ

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

777 
WGCA72 TJSJ 162154
FFSSJU

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SAN JUAN PR
554 PM AST SAT JUL 16 2011

PRC127-139-162204-
/O.EXP.TJSJ.FF.W.0082.000000T0000Z-110716T2200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
TRUJILLO ALTO PR-SAN JUAN PR-
554 PM AST SAT JUL 16 2011

...THE FLASH FLOOD WARNING WILL EXPIRE AT 600 PM AST FOR SAN JUAN AND
TRUJILLO ALTO MUNICIPALITIES...

RESIDENTS AND MOTORISTS ACROSS THESE AREAS SHOULD HOWEVER BE ALERT TO
PONDING OF WATER ON ROADWAYS AND ALLOW TIME FOR STREAMS...CREEKS AND
RIVERS TO RETURN TO NORMAL LEVELS

LAT...LON 1847 6612 1848 6607 1832 6594 1829 6605

$$

MARTINEZ

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

Flash Flood Warnings in Puerto Rico, 2011Every flash flood warning in 2011

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.