1 flash flood, as filed by the National Weather Service.
Every event with a place to put it. Tap one for its entry below.
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS San Juan, PR wrote its last area forecast discussion before the first event at Aug 26, 5:00 AM AST, 11 hours 35 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE SAN JUAN PR 500 AM AST FRI AUG 26 2005 .DISCUSSION...AN UPPER LEVEL TROUGH WILL MOVE CLOSE TO PUERTO RICO FROM THE NORTH TODAY WHILE IN THE LOWER LEVELS THE TRADE WIND FLOW WILL BRING ABUNDANT MOISTURE TO THE LOCAL AREA. THE FINAL RESULT WILL BE ABUNDANT MOISTURE AND INSTABILITY DURING THE AFTERNOON HOURS OVER PUERTO RICO AND THE COASTAL WATERS. GFS MODEL GUIDANCE...WORKING GOOD SINCE SEVERAL DAYS AGO...SUGGEST VERY GOOD UPPER LEVEL DIVERGENCE 200MB AND ALSO GOOD OMEGA VALUES OVER PUERTO RICO. ALL THIS IN PHASE WITH THE DIURNAL HEATING WILL RESULT IN ANOTHER RAINY DAY OVER MOST OF PUERTO RICO ESPECIALLY THE NORTHERN HALF AND INTERIOR SECTIONS. THE STRONG DIFFLUENCE AND DIVERGENCE WILL PRODUCE SCATTERED THUNDERSTORMS. SOME OF THEM WILL BE STRONG AND MAY ACQUIRE SEVERE CHARACTERISTICS. && .AVIATION...SCATTERED THUNDERSTORMS OVER THE ARE FORECAST SINCE LATE MORNING AND ESPECIALLY IN THE AFTERNOON. THIS INCLUDE STRONG THUNDERSTORMS IN OR AT THE VICINITY OF THE LUIS MUNOZ MARIN INTERNATIONAL AIRPORT AND OVER THE BORINQUEN AIRPORT IN AGUADILLA. WATCH FOR FREQUENT LIGHTNING AND ITS EFFECTS. && .HYDROLOGY...ALTHOUGH WE HAVE BEEN MENTIONING THIS SINCE SEVERAL DAYS AGO...TODAY FRIDAY IS EXPECTED TO BE ANOTHER ACTIVE WEATHER DAY. THE LIKELIHOOD OF URBAN OR FLASH FLOODING IS HIGH. ALSO THE LIKELIHOOD FOR LANDSLIDES OCCURRENCE IS HIGH. && .CLIMATE...1.83 INCHES OF RAIN WERE MEASURED AT THE LUIS MUNOZ MARIN INTERNATIONAL AIRPORT. YEAR TO DATE WE HAVE 20.72 INCHES ABOVE THE NORMAL VALUE HAVE BEEN MEASURED AT THE LUIS MUNOZ MARIN INTERNATIONAL. THIS IS ALSO 12.27 INCHES ABOVE THE VALUE MEASURED LAST YEAR FOR THE SAME DATE. && .PRELIMINARY POINT TEMPS/POPS... SJU 90 80 89 79 / 70 40 40 40 STT 88 80 87 79 / 70 40 40 50 && .SJU WATCHES/WARNINGS/ADVISORIES... PR...NONE. VI...NONE. && RIVERA
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE SAN JUAN PR 600 AM AST FRI AUG 26 2005 PRZ001>013-AMZ710>750-271030- 600 AM AST FRI AUG 26 2005 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PUERTO RICO. .DAY ONE...TODAY AND TONIGHT AN UPPER LEVEL TROUGH WILL BE IN A POSITION TO PUT THE LOCAL AREA IN THE REGION FAVORABLE FOR ACTIVE WEATHER. THIS WILL BRING ANOTHER ROUND OF SHOWERS AND THUNDERSTORMS ACROSS THE LOCAL AREA TODAY. URBAN AND SMALL STREAM FLOODING IS EXPECTED...AND FLASH FLOODING AND MUDSLIDES ARE POSSIBLE...IN ISOLATED REGIONS. .DAYS TWO THROUGH SEVEN... RELATIVELY DRIER CONDITIONS ARE EXPECTED TO MOVE IN AFTER THE UPPER LEVEL TROUGH MOVES FROM THE AREA. HOWEVER...EACH AFTERNOON...HEAVY SHOWERS AND THUNDERSTORMS ARE LIKELY TO DEVELOP ACROSS THE INTERIOR OF THE ISLAND AND COULD INDUCE ISOLATED AREAS OF PROBLEM FLOODING. .SPOTTER CALL TO ACTION STATEMENT... SPOTTER ACTIVATION MAY BECOME NECESSARY FOR ISOLATED AREAS OF THE ISLAND THIS AFTERNOON AND EVENING...MAINLY DUE TO HEAVY RAINFALL AND FLOODING. VIZ001-002-AMZ710>730-271030- 600 AM AST FRI AUG 26 2005 THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE U.S. VIRGIN ISLANDS. .DAY ONE...TODAY AND TONIGHT AN UPPER LEVEL TROUGH WILL BE IN A POSITION TO PUT THE LOCAL AREA IN THE REGION FAVORABLE FOR ACTIVE WEATHER. THIS WILL BRING ANOTHER ROUND OF SHOWERS AND THUNDERSTORMS ACROSS THE LOCAL AREA TODAY. .DAYS TWO THROUGH SEVEN... RELATIVELY DRIER CONDITIONS ARE EXPECTED TO PREVAIL AFTER THE UPPER LEVEL TROUGH MOVES FROM THE AREA. NO HAZARDOUS WEATHER IS EXPECTED. .SPOTTER CALL TO ACTION STATEMENT... SPOTTER ACTIVATION IS NOT ANTICIPATED. STAY TUNED TO NOAA WEATHER RADIO AND OTHER LOCAL MEDIA FOR FURTHER DETAILS OR UPDATES. FOR ADDITIONAL INFORMATION...VISIT THE NATIONAL WEATHER SERVICE WEB SITE FOR PUERTO RICO AND THE U.S. VIRGIN ISLANDS AT (ALL LOWERCASE LETTERS): HTTP://WWW.SRH.NOAA.GOV/SJU.
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SAN JUAN PR 205 PM AST FRI AUG 26 2005 PRZ005-006-008-009-261900- NORTHWEST-NORTH CENTRAL-CENTRAL INTERIOR-WESTERN INTERIOR- 205 PM AST FRI AUG 26 2005 DOPPLER WEATHER RADAR AND SPOTTER REPORTS INDICATED STRONG THUNDERSTORMS EXTENDING FROM VEGA BAJA AND MANATI WEST AND SOUTHWEST THROUGH ARECIBO AND UTUADO AND ALSO FROM SAN SEBASTIAN NORTH AND NORTHWEST THROUGH ISABELA AND QUEBRADILLAS. THESE STRONG STORMS WILL CONTINUE MOVING VERY SLOWLY NORTH NORTHWEST ACROSS THESE AREAS THROUGH AT LEAST 300 PM...WITH OTHER THUNDERSTORMS DEVELOPING THEREAFTER. RESIDENTS SHOULD EXPECT FREQUENT AND DANGEROUS CLOUD TO GROUND LIGHTNING...WIND GUSTS IN EXCESS OF 40 MPH...TORRENTIAL RAINFALL AND SOME LOW LYING FLOODING TO ACCOMPANY THESE STORMS. IN ADDITION...SOME PEA SIZED HAIL IS ALSO POSSIBLE. BCS/RAM
COMUNICADO ESPECIAL SOBRE LAS CONDICIONES DEL TIEMPO SERVICIO NACIONAL DE METEOROLOGIA SAN JUAN PR 205 PM AST VIERNES 26 DE AGOSTO DE 2005 PRZ005-006-008-009-261900- NOROESTE-NORTE CENTRAL-INTERIOR CENTRAL-OESTE INTERIOR- 205 PM AST VIERNES 26 DE AGOSTO DE 2005 EL RADAR DOPPLER Y OBSERVADORES INDICARON TRONADAS FUERTES EXTENDIENDOSE DESDE VEGA BAJA Y MANATI HACIA EL OESTE Y SUROESTE A TRAVES DE ARECIBO Y UTUADO Y TAMBIEN DESDE SAN SEBASTIAN HACIA EL NORTE Y NOROESTE A TRAVES DE ISABELA Y QUEBRADILLAS. ESTAS TRONADAS FUERTES CONTINUARAN MOVIENDOSE MUY LENTAMENTE HACIA EL NORTE NOROESTE A TRAVES DE ESTAS AREAS HASTA LAS 3 PM...CON OTRAS TRONADAS DESARROLLANDOSE DESDE ENTONCES. LOS RESIDENTES DEBEN ESPERAR RELAMPAGOS PELIGROSOS FRECUENTES DE NUBE A TIERRA...VIENTOS EN RAFAGAS EN EXCESO DE 40 MPH...LLUVIA TORRENCIAL Y ALGUNAS INUNDACIONES DE AREAS BAJAS QUE ACOMPANARAN A ESTAS TRONADAS. EN ADICION...TAMBIEN ES POSIBLE GRANIZO PEQUENO. BCS/RAM/SANTIAGO
The national radar mosaic for the moment the first event began.
1 flash flood. Local standard time, as filed.
River Mayaguecillo was reported out of its banks along road 124, Km. 2.0 near the water plant.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Puerto Rico in 2005Every state in 2005This day in weather historyWarnings in Puerto Rico, August 2005
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 5470565.