Warning Vector

Flash Flood Warning

NWS San Juan PR ยท US

New
This event was updated at .

Details

Flash Flood Warning Issued November 4 At 1:43PM AST Until November 4 At 4:45PM AST By NWS San Juan PR

Event
Flash Flood Warning
Issued
Onset
Message expires
Expected end
Category
Meteorological
Urgency
Immediate
Severity
Severe
Certainty
Likely
Response
Avoid

Description

Overview

FFWSJU The National Weather Service in San Juan has issued a * Flash Flood Warning for... Caguas in Puerto Rico... * Until 445 PM AST. * At 143 PM AST, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 1 and 2 inches of rain have fallen. Additional rainfall amounts of 1 to 3 inches are possible in the warned area. Flash flooding is ongoing or expected to begin shortly.

Hazard

Flash flooding caused by thunderstorms.

Source

Radar indicated.

Impacts

Flash flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other poor drainage and low-lying areas.

Instructions

Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. In hilly terrain there are hundreds of low water crossings which are potentially dangerous in heavy rain. Do not attempt to cross flooded roads. Find an alternate route. Please report observed flooding to local emergency services or law enforcement and request they pass this information to the National Weather Service when you can do so safely.

Affected areas

  • Caguas Municipio, PR

Public contact

Issuer
NWS San Juan PR

Message record

Received
Issue to receipt
~51s
CAP status
Actual
CAP message type
Alert
Lifecycle
New
Source
NWWS-OI
Feed
NWWS
Recovered
No
CAP routing and identity
ULID
01M6KTHXV7RN9ZW4AQRQ3W4EQK
Identifier
urn:oid:2.49.0.1.840.0.4b22bb603adc08d37ebc01a6d3f16b1cfbe07b5a.001.1
Scope
Public
CAP source
211803 v2.3.0
Handling codes
IPAWSv1.0
Issuing office
NWS San Juan PR
AWIPS ID
CAPSJU
NWWS sequence
nwws_processor.8342
WMO heading
XOCA52
WMO data type
CAP alert message XML (XO)
WMO geography
Caribbean and Central America (CA)
WMO bulletin number
52

Event codes

NameValue
SAMEFFW
NationalWeatherServiceFFW

Parameters

NameValue
AWIPSidentifierFFWSJU
WMOidentifierWGCA52 TJSJ 041743
flashFloodDetectionRADAR INDICATED
BLOCKCHANNELEAS
BLOCKCHANNELNWEM
EAS-ORGWXR
VTEC/O.NEW.TJSJ.FF.W.0036.261104T1743Z-261104T2045Z/
eventEndingTime2026-11-04T16:45:00-04:00
BLOCKCHANNELCMAS
Locations

Location data

  • Caguas Municipio, PR
NameValue
SAME072025
UGCPRC025
Polygons
18.31,-66.02 18.3,-66.03 18.29,-66.03 18.28,-66.01 18.23,-66.01 18.22,-66.0 18.19,-66.0 18.18,-66.02 18.14,-66.02 18.14,-66.03 18.12,-66.04 18.11,-66.05 18.14,-66.07 18.15,-66.07 18.17,-66.1 18.21,-66.12 18.24,-66.08 18.3,-66.07 18.3,-66.05 18.31,-66.04 18.31,-66.02