Upper level dynamics combined with abundant low level moisture caused significant shower activity across Puerto Rico during the evening of November 13. 12 inches in Naranjito.
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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 episode as NWS SJU wrote it up.
Upper level dynamics combined with abundant low level moisture caused significant shower activity across Puerto Rico during the evening of November 13. There was some flooding in the area stretching from the southeast through the northeast portion of Puerto Rico around mid-November where embedded heavy rain resulted in amounts that ranged from 3.29 inches in Naguabo to 5.12 inches in Naranjito. Significant rises were noted on River Guayanes along the southeast and River Guajataca along the northwest.
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 Nov 13, 3:39 PM AST, 4 hours 13 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE SAN JUAN PR 339 PM AST MON NOV 13 2006 .DISCUSSION...SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS AFFECTED THE EASTERN PORTION OF PUERTO RICO FROM MID MORNING THROUGH EARLY AFTERNOON. THESE SHOWERS PRODUCE BETWEEN 1 TO 3 INCHES... MAINLY OVER THE MUNICIPALITY OF RIO GRANDE. ALSO CLUSTER OF SHOWERS AND THUNDERSTORMS DEVELOPED OVER THE INTERIOR AND WESTERN SECTION OF PUERTO RICO. MOST OF THESE SHOWERS WILL DISSIPATE OR MOVE OVER THE ATLANTIC AND CARIBBEAN WATERS. AN UPPER LEVEL JET STREAK LOCATED OVER THE EASTERN PUERTO RICO WILL ENHANCE THE DEVELOPMENT OF OVERNIGHT SHOWERS THEREFORE EXPECT ISOLATED TO SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS WILL PREVAIL OVER THE LOCAL WATERS WITH A FEW AFFECTING THE EASTERN COASTAL SECTIONS OF PUERTO RICO. ON TUESDAY...THE GFS MODEL SUGGEST GOOD OMEGA AS THE JET STREAK WILL PREVAIL OVER THE LOCAL AREA...ENHANCING AFTERNOON SHOWERS MAINLY OVER THE INTERIOR AND NORTHWEST SECTIONS OF PUERTO RICO. WINDS ARE EXPECTED TO REMAIN AT 10 MPH OR LESS THEREFORE THE MOVEMENT OF THESE SHOWERS WILL BE SLOW AND RAINFALL ACCUMULATION COULD PRODUCE ISOLATED FLOODING. && .MARINE...A LIGHT TO MODERATE TRADE WIND FLOW WILL PREVAIL ACROSS THE LOCAL COASTAL WATERS...THIS WILL PRODUCE TRANQUIL SEAS THROUGH AT LEAST FRIDAY. ON FRIDAY NIGHT A MODERATE NORTHERLY SWELL WILL BE REACHING OUR LOCAL WATERS. && .PRELIMINARY POINT TEMPS/POPS... SJU 77 85 77 85 / 30 50 40 40 STT 78 84 78 84 / 40 40 50 50 && .SJU WATCHES/WARNINGS/ADVISORIES... PR...NONE. VI...NONE. && 10
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE SAN JUAN PR 600 AM AST MON NOV 13 2006 PRZ001>013-AMZ710>750-141000- 600 AM AST MON NOV 13 2006 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PUERTO RICO. .TODAY AND TONIGHT... MOIST LOW LEVELS AND A SLIGHTLY UNSTABLE AIR MASS WILL CONTINUE ACROSS THE LOCAL AREA TODAY. THIS WILL RESULT IN ENHANCED DIURNAL SHOWER ACTIVITY THIS AFTERNOON. WITH WEAK STEERING WINDS...THE SHOWERS WILL BE SLOW MOVING...AND ENABLE AREAS OF LOCALLY HEAVY RAINFALL ACROSS PARTS OF PUERTO RICO. THIS WILL RESULT IN AREAS OF URBAN AND SMALL STREAM FLOODING. .DAYS TWO THROUGH SEVEN...HAZARDOUS WEATHER CONDITIONS ARE NOT EXPECTED. .SPOTTER CALL TO ACTION STATEMENT... SPOTTER ACTIVATION MAY BE REQUIRED TODAY. VIZ001-002-AMZ710>730-141000- 600 AM AST MON NOV 13 2006 THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE U.S. VIRGIN ISLANDS. .TODAY AND TONIGHT... MOIST LOW LEVELS AND A SLIGHTLY UNSTABLE AIR MASS WILL CONTINUE ACROSS THE LOCAL AREA TODAY. THIS WILL RESULT IN ENHANCED DIURNAL SHOWER ACTIVITY THIS AFTERNOON. WITH WEAK STEERING WINDS...THE SHOWERS WILL BE SLOW MOVING...AND THERE IS THE CHANCE OF LOCALLY HEAVY RAINFALL ACROSS PARTS OF THE LOCAL ISLANDS. .DAYS TWO THROUGH SEVEN...HAZARDOUS WEATHER CONDITIONS ARE NOT EXPECTED. .SPOTTER CALL TO ACTION STATEMENT... SPOTTER ACTIVATION IS NOT ANTICIPATED TODAY. 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. FROM YOUR PDA/PHONE: HTTP://MOBILE.SRH.NOAA.GOV OR WWW.SRH.NOAA.GOV/WML
The national radar mosaic for the moment the first event began.
4 flash flood, 1 debris flow. Local standard time, as filed.
The USGS river level sensor at River Guayanes Central Roig was rapidly approaching flood stage of 15 feet. At 2106 LST the river crestd at 22.93 feet.
The USGS river level sensor for River Fajardo at Paraiso was above flood stage at 10.08 feet and still increasing.
USGS river level sensor for Guajataca river at Lares rose above flood stage of 13 feet and crested at 14.13 feet.
USGS river level sensor at River Tanama near Utuado exceeded the flod stage of 11 feet and crested at 11.82 around 1700 LST.|
The Utuado Municipality Emergency Management Office reported several landslides due to the heavy rains. These landslides were reported at Sector Roble Garden, San Carlos Street, road 611 at Barrio Sabana Grande, road 603 at Barrio Roncador, and Jose Celso Barbosa neighborhood.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Puerto Rico in 2006Every state in 2006This day in weather historyWarnings in Puerto Rico, November 2006
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 2026-10-01. Each event’s entry at NCEI: 5379, 5386, 5388, 5389, 5367.