Mid to upper level trough combined with ample low level moisture and daytime heating to produced scattered to numerous showers with thunderstorms over Saint Thomas.
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 episode as NWS SJU wrote it up.
Mid to upper level trough combined with ample low level moisture and daytime heating to produced scattered to numerous showers with thunderstorms over Saint Thomas.
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 Dec 5, 10:34 AM AST, 1 hour 26 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE SAN JUAN PR 1034 AM AST THU DEC 5 2013 .UPDATE...FREQUENT HEAVY SHOWERS OVER NORTHEAST PUERTO RICO WILL GRADUALLY DIMINISH LATE THIS MORNING...MAINLY SCATTERED SHOWERS BY AFTERNOON. THEY MAY CONTINUE MOST OF THIS AFTERNOON FROM VIEQUES/ ST. THOMAS SOUTHWARD BUT MOST WILL NOT BE SO HEAVY. && .DISCUSSION...DIGGING UPPER TROUGH HAS ALMOST PUSHED HEAVY SHOWERS TO THE SOUTH AND EAST OF PR. WHILE LOOKING AT WATER VAPOR IT SEEMS A STRETCH TO EVEN GET SCATTERED SHOWERS THIS AFTERNOON. BUT THEY ARE ON RADAR ATTM WHILE PRECIPITABLE WATER WILL BE A LITTLE SLOWER TO DROP OFF. SO RETAIN SCATTERED SHOWERS FOR NOW BUT EXPECT FURTHER DRYING TONIGHT. && .AVIATION...IMPRVG CONDS WI VFR BY AFT ALL PR...WI SCT IFR/MVFR IN SCT/ISOLD TSRA USVI AND LEEWARDS. WINDS SFC-FL150 NE 15-30 KT DECR TO 15-25 KT TONITE/FRI. && .MARINE...LITTLE CHANGE IN FORECASTS. THUNDERSTORMS...WINDS UP TO 21 KT AND SEAS TO 5 FT GIVE SMALL BOATERS REASON FOR CAUTION. && .PREV DISCUSSION... /ISSUED 441 AM AST THU DEC 5 2013/ SYNOPSIS...MID TO UPPER LEVEL TROUGH ACROSS THE WESTERN ATLANTIC WILL CONTINUE TO MOVE EAST WITH ITS AXIS RELOCATING SOUTH AND EAST OF THE LOCAL ISLANDS BY THE END OF THE WEEK. SURFACE HIGH PRESSURE WILL CONTINUE TO AMPLIFY NORTH OF THE AREA...TIGHTENING THE LOCAL PRESSURE GRADIENT. DISCUSSION...CLOUDY SKIES PREVAILED ACROSS THE LOCAL ISLANDS OVERNIGHT. MOST OF THE SHOWER AND THUNDERSTORM ACTIVITY WERE FOCUSED OVER THE LOCAL WATERS...WITH A FEW SHOWERS NOTED OVER E PR AND USVI. LOW TEMPERATURES WERE MAINLY IN THE MID 70S IN COASTAL AREAS AND THE WINDS WERE LIGHT AND VARIABLE. THE AFOREMENTIONED UPPER LEVEL TROUGH WILL CONTINUE TO COMBINE WITH PLENTY OF LOW LEVEL MOISTURE TO RESULT IN PERIODS OF SHOWERS AND ISOLATED THUNDERSTORMS ACROSS THE LOCAL ISLANDS TODAY. SHOWER AND THUNDERSTORM ACTIVITY WILL BE FOCUSED ACROSS THE EASTERN AND NORTHERN PORTIONS OF THE FORECAST AREA...HOWEVER IF THERE IS A GOOD BREAK IN CLOUD COVER...THE SOUTHWESTERN PORTIONS SHOULD ALSO SEE SHOWER AND THUNDERSTORM DEVELOPMENT. DUE TO ALREADY SATURATED SOILS...PROLONGED PERIODS OF MODERATE TO HEAVY RAINFALL WILL LIKELY RESULT IN SHARP RISES IN SMALL STREAMS AND CREEKS AS WELL AS URBAN FLOODING. MODEL GUIDANCE CONTINUED TO SUGGEST A DECREASING TREND IN LOW LEVEL MOISTURE AND FAVORABLE UPPER LEVEL DYNAMICS AS THE MID TO UPPER UPPER LEVEL TROUGH RELOCATES SOUTH TO EAST OF THE LOCAL AREA. AS A RESULT SHOWER COVERAGE AND INTENSITY IS EXPECTED TO GRADUALLY DIMINISH WITH EACH DAY. AN OVERALL DRIER WEATHER PATTERN WILL DOMINATE THE LOCAL AREA SUNDAY INTO EARLY NEXT WORK WEEK. HOWEVER...PATCHES OF MOISTURE WILL CONTINUE TO MOVE ACROSS THE LOCAL AREA FROM TIME TO TIME... RESULTING IN A FEW PASSING SHOWERS ACROSS THE WINDWARD SIDE OF THE LOCAL ISLANDS. AVIATION...VFR CONDITIONS WITH VCSH ARE EXPECTED FOR ALL TAF SITES DURING THE NIGHT WITH LIGHT AND VARIABLE SFC WINDS. SHRA AND ISOLD TSRA EXPECTED TO AFFECT THE LOCAL TERMINALS TODAY CAUSING CIGS AT AROUND FL050-080 WITH OCCASIONAL CIGS CLOSE TO FL030 WITH THE HEAVIER RAIN. WIND WILL BE MAINLY FROM THE EAST NORTHEAST TODAY AT AROUND 10KTS AND GUSTY NEAR SHRA. MARINE....TRANQUIL MARINE CONDITIONS IN SHORT TERM. LATE FRIDAY AND INTO THE UPCOMING WEEKEND...LONG PERIOD NORTHEAST SWELLS STILL EXPECTED INTO LOCAL WATERS...BRINGING HAZARDOUS SEAS AND INCREASING THE WAVE HEIGHTS ONCE AGAIN TO 7-8 FEET. && .PRELIMINARY POINT TEMPS/POPS... SJU 82 74 83 74 / 50 50 50 60 STT 85 76 86 76 / 60 30 30 50 && .SJU WATCHES/WARNINGS/ADVISORIES... PR...NONE. VI...NONE. COASTAL WATERS...NONE. && 72/54
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE SAN JUAN PR 600 AM AST THU DEC 5 2013 AMZ710>745-PRZ001>013-061100- 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- 600 AM AST THU DEC 5 2013 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PUERTO RICO AND THE ADJACENT ATLANTIC COASTAL WATERS. .DAY ONE...TODAY AND TONIGHT SHOWERS AND ISOLATED THUNDERSTORMS WILL AFFECT PUERTO RICO TODAY...ESPECIALLY THE NORTHERN AND EASTERN SECTIONS. DUE TO ALREADY SATURATED SOILS...ANY SIGNIFICANT SHOWER WILL LIKELY CAUSE MINOR FLOODING. THEREFORE URBAN AND SMALL STREAM FLOODING IS LIKELY TODAY ACROSS PARTS OF PUERTO RICO. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY STRENGTHENING TRADE WINDS AND LARGE NORTHEAST SWELLS WILL CREATE CONFUSED SEAS AND DANGEROUS SURF CONDITIONS BEGINNING FRIDAY NIGHT AND CONTINUING THROUGH THE WEEKEND. .SPOTTER INFORMATION STATEMENT... REPORTS OF AMOUNTS OF RAINFALL OR FLOODING WILL BE APPRECIATED. AMZ715-725-VIZ001-002-061100- ST. THOMAS ST. JOHN ADJACENT ISLANDS-ST CROIX- NEARSHORE ATLANTIC AND ADJACENT CARIBBEAN COASTAL WATERS- 600 AM AST THU DEC 5 2013 THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE U.S. VIRGIN ISLANDS AND THE ADJACENT COASTAL WATERS. .DAY ONE...TODAY AND TONIGHT SHOWERS AND ISOLATED THUNDERSTORMS ARE EXPECTED ONCE AGAIN IN AND AROUND THE U.S. VIRGIN ISLANDS. SIGNIFICANT SHOWERS WILL LIKELY CAUSE URBAN AND SMALL STREAM FLOODING IN AREAS OF SATURATED SOILS. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY STRENGTHENING TRADE WINDS AND LARGE NORTHEAST SWELLS WILL CREATE CONFUSED SEAS AND DANGEROUS SURF CONDITIONS BEGINNING FRIDAY NIGHT AND CONTINUING THROUGH THE WEEKEND. .SPOTTER INFORMATION STATEMENT... REPORTS OF AMOUNTS OF RAINFALL OR FLOODING WILL BE APPRECIATED.
The national radar mosaic for the moment the first event began.
5 flood. Local standard time, as filed.
Urban Flooding at the Mafolie Rd. at Charlotte Amalie.
Urban Flooding, Rear of Gottlieb Gas Station was reported flooded.
Urban Flooding...Kronprindsens Gade area of department of labor was flooded.
Urban Flooding ocurred along the Julian Jackson drive.
Urban Flooding along the Veterans Drive near Griffith park.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in U.S. Virgin Islands in 2013Every state in 2013This day in weather historyWarnings in U.S. Virgin Islands, December 2013
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: 488049, 488051, 488052, 488053, 488054.