Showers and thunderstorms developed over north central Puerto Rico. Light low level winds maintained these showers nearly stationary over Hatillo,producing very heavy rainfall in a short period of time.
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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.
Showers and thunderstorms developed over north central Puerto Rico. Light low level winds maintained these showers nearly stationary over Hatillo,producing very heavy rainfall in a short period of time.
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 24, 2:58 PM AST, 6 hours 41 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE SAN JUAN PR 258 PM AST TUE NOV 24 2015 .SYNOPSIS...LATEST GUIDANCE SUGGESTS THAT THE UPPER LEVEL RIDGE WILL PREVAIL OVER THE LOCAL AREA THROUGH THURSDAY. THEN AN UPPER TROUGH WILL DEVELOP ACROSS THE WESTERN ATLANTIC BY FRIDAY...DIGGING SOUTH INTO THE CARIBBEAN DURING THE WEEKEND. AVAILABLE MOISTURE WILL REMAIN NEAR NORMAL THROUGH THURSDAY...INCREASING GRADUALLY ON FRIDAY AND CONTINUING ABOVE NORMAL THROUGH THE WEEKEND AND INTO THE FIRST FEW DAYS OF NEXT WEEK. && .DISCUSSION...LITTLE TO NO SHOWER ACTIVITY WAS OBSERVED TODAY ACROSS THE LOCAL AREA WITH ONLY A FEW SHOWERS OVER THE LOCAL WATERS. HOWEVER AT THIS TIME...MID AFTERNOON...A FEW SHOWERS LOOK LIKE THEY WILL POP UP ACROSS PORTIONS OF THE INTERIOR AND NORTHWESTERN PR AS SATELLITE IMAGERY SHOWS A STEADY INCREASE IN CLOUDS OVER THOSE AREAS. THIS IS LIKELY DUE TO THE SEA BREEZE CONVERGENCE AND DIURNAL HEATING. FOR THE NEXT FEW DAYS...THE AVAILABLE MOISTURE SHOULD BE CLOSE TO NORMAL...UNTIL FRIDAY...SO THE CHANCES OF MORE SIGNIFICANT SHOWERS AND A FEW THUNDERSTORMS SHOULD INCREASE ON WEDNESDAY...REMAINING MARGINALLY UNSTABLE THROUGH THE REST OF THE WEEK. HOWEVER FOR THE WEEKEND...THE UPPER TROUGH DIGS DOWN TO THE WEST OF THE LOCAL AREA...POSSIBLY CAUSING GOOD INSTABILITY AND INCREASING THE CHANCES OF THUNDERSTORMS OVER THE LOCAL AREA AS THIS UPPER TROUGH COMBINES WITH THE INCREASE IN MOISTURE THAT THE GFS MODEL IS FORECASTING...WHICH WOULD PUT THE PRECIPITABLE WATER TO ALMOST 2 INCHES THIS WEEKEND...AND OVER 2 INCHES EARLY NEXT WEEK. && .AVIATION...PREVAILING VFR DURG THE PRD AT ALL TAF SITES. SCT-BKN CLDS LYRS FL020...040...080. FEW TOPS 120-140 OVR THE COASTAL WATERS SURROUNDING THE ISLANDS... ISOLD TOPS ABV 240 W/ISOLD TSRA OVR W AND NW PR TIL 24/22Z WHERE BRIEF MVFR WITH SCT SHRA AND ISOLD TSRA WILL REMAIN POSSIBLE. SFC WND LIGHT AND VRB EXCEPT FOR LOCAL SEA BREEZES TIL 24/22Z ALONG THE COASTAL AREAS. WNDS BLO FL120 MAINLY FM SE 10- 15 KTS...THEN BACKING AND BCMG FM N WHILE INCR W/HEIGHT. NO OTHER SIG OPERATIONAL IMPACTS ATTM. && .MARINE...SEAS UP TO 5 FEET REPORTED AT THE SAN JUAN BUOY AND BETWEEN 3 AND 4 FEET AT THE VIEQUES BUOY. THE OFFSHORE ATLANTIC BUOY IS REPORTING SEAS BETWEEN 5 AND 6 FEET. ACCORDING TO GUIDANCE AND OBSERVATIONS...SEAS WILL CONTINUE TO SLOWLY SUBSIDE TODAY THEN INCREASING SLOWLY ON THURSDAY. && .PRELIMINARY POINT TEMPS/POPS... SJU 76 87 76 87 / 20 30 40 40 STT 76 86 76 86 / 30 30 40 40 && .SJU WATCHES/WARNINGS/ADVISORIES... PR...NONE. VI...NONE. AM...NONE. && 09/25
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE SAN JUAN PR 613 AM AST TUE NOV 24 2015 AMZ710>745-PRZ001>013-251015- SAN JUAN AND VICINITY-NORTHEAST-SOUTHEAST-EASTERN INTERIOR- NORTH CENTRAL-CENTRAL INTERIOR-PONCE AND VICINITY-NORTHWEST- WESTERN INTERIOR-MAYAGUEZ AND VICINITY-SOUTHWEST-CULEBRA-VIEQUES- THE NEARSHORE AND OFF SHORE ATLANTIC AND CARIBBEAN COASTAL WATERS- 613 AM AST TUE NOV 24 2015 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PUERTO RICO AND THE ADJACENT ATLANTIC COASTAL WATERS. .DAY ONE...TODAY AND TONIGHT .THUNDERSTORMS...THERE IS A CHANCE OF THUNDERSTORMS WITH HEAVY RAINFALL ACROSS PORTIONS OF THE INTERIOR...NORTH AND WEST PUERTO RICO THIS AFTERNOON. .RIP CURRENTS...THERE IS A MODERATE RISK OF RIP CURRENTS FOR THE ATLANTIC BEACHES OF PUERTO RICO AND CULEBRA. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY AN UPPER LEVEL TROUGH/LOW WILL AMPLIFY WEST OF THE REGION LATE IN THE WEEKEND AND EARLY NEXT WEEK. THIS WILL RESULT IN MOIST AND UNSTABLE CONDITIONS ACROSS THE LOCAL REGION. .SPOTTER INFORMATION STATEMENT... WIDESPREAD SPOTTER ACTIVATION IS NOT ANTICIPATED, HOWEVER INDIVIDUAL SPOTTER ARE ENCOURAGED TO REPORT FLOODING AND/OR RIP CURRENTS TO THE NATIONAL WEATHER SERVICE IN SAN JUAN. AMZ715-725-VIZ001-002-251015- ST. THOMAS ST. JOHN ADJACENT ISLANDS-ST CROIX- NEARSHORE ATLANTIC AND ADJACENT CARIBBEAN COASTAL WATERS- 613 AM AST TUE NOV 24 2015 THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE U.S. VIRGIN ISLANDS AND THE ADJACENT COASTAL WATERS. .DAY ONE...TODAY AND TONIGHT .RIP CURRENTS...THERE IS A MODERATE RISK OF RIP CURRENTS FOR BEACHES ALONG NORTHWEST SAINT THOMAS AND NORTHEAST SAINT CROIX. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY AN UPPER LEVEL TROUGH/LOW WILL AMPLIFY WEST OF THE REGION LATE IN THE WEEKEND AND EARLY NEXT WEEK. THIS WILL RESULT IN MOIST AND UNSTABLE CONDITIONS ACROSS THE LOCAL REGION. .SPOTTER INFORMATION STATEMENT... WIDESPREAD SPOTTER ACTIVATION IS NOT ANTICIPATED, HOWEVER INDIVIDUAL SPOTTER ARE ENCOURAGED TO REPORT RIP CURRENTS TO THE NATIONAL WEATHER SERVICE IN SAN JUAN.
The national radar mosaic for the moment the first event began.
1 flood. Local standard time, as filed.
Road PR-2 from Hatillo to Arecibo was reported flooded in front of Sams Club Store.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Puerto Rico in 2015Every state in 2015This day in weather historyWarnings in Puerto Rico, November 2015
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: 608863.