Heat Advisory
NWS San Juan PR ยท US
Details
Heat Advisory Remains In Effect Until 4 PM AST This Afternoon
- Event
- Heat Advisory
- Issued
- Onset
- Message expires
- Expected end
- Category
- Meteorological
- Urgency
- Expected
- Severity
- Moderate
- Certainty
- Likely
- Response
- Execute
Description
What
This level of heat affects most individuals sensitive to heat, especially those without effective cooling and/or adequate hydration.
Where
Puerto Rico and the US Virgin Islands.
When
Until 4 PM AST this afternoon.
Impacts
High temperatures or elevated heat indices can worsen symptoms in people with chronic conditions. They can also increase the risk of heat-related illness among individuals sensitive to heat with inadequate cooling or hydration. These risks are highest across coastal areas, lowlands, interior valleys, and urban zones.
Instructions
Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke.
Affected areas
- San Juan and Vicinity
- Northeast
- Southeast
- Eastern Interior
- North Central
- Central Interior
- Ponce and Vicinity
- Northwest
- Western Interior
- Mayaguez and Vicinity
- Southwest
- Culebra Municipio, PR
- Vieques Municipio, PR
- St.Thomas...St. John.. and Adjacent Islands
- St Croix
Public contact
- Issuer
- NWS San Juan PR
- Website
- http://www.weather.gov
Message record
- Received
- Issue to receipt
- ~50s
- CAP status
- Actual
- CAP message type
- Alert
- Lifecycle
- New
- Source
- NWWS-OI
- Feed
- NWWS
- Recovered
- No
CAP routing and identity
- ULID
- 01M3HKACTGCHDGKAC76VBQNRF7
- Identifier
- urn:oid:2.49.0.1.840.0.53083a8e6814e3694e3d66ab0e5c9cf321a7ee8a.001.1
- Sender
- w-nws.webmaster@noaa.gov
- 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.2966
- WMO heading
- XOCA52
- WMO data type
- CAP alert message XML (XO)
- WMO geography
- Caribbean and Central America (CA)
- WMO bulletin number
- 52
References
- Sender
- w-nws.webmaster@noaa.gov
- Sent
Event codes
| Name | Value |
|---|---|
| SAME | NWS |
| NationalWeatherService | HTY |
Parameters
| Name | Value |
|---|---|
| AWIPSidentifier | NPWSJU |
| WMOidentifier | WWCA72 TJSJ 271411 |
| NWSheadline | HEAT ADVISORY REMAINS IN EFFECT UNTIL 4 PM AST THIS AFTERNOON |
| BLOCKCHANNEL | EAS |
| BLOCKCHANNEL | NWEM |
| VTEC | /O.CON.TJSJ.HT.Y.0065.000000T0000Z-260927T2000Z/ |
| eventEndingTime | 2026-09-27T16:00:00-04:00 |
| BLOCKCHANNEL | CMAS |
| expiredReferences | w-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.203060240ba980ab9f36a9ec54f6e7b20d6d8293.001.1,2026-09-27T00:09:00-04:00 |
Locations
Location data
- San Juan and Vicinity
- Northeast
- Southeast
- Eastern Interior
- North Central
- Central Interior
- Ponce and Vicinity
- Northwest
- Western Interior
- Mayaguez and Vicinity
- Southwest
- Culebra Municipio, PR
- Vieques Municipio, PR
- St.Thomas...St. John.. and Adjacent Islands
- St Croix
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