Showers and thunderstorms developed over the northwest portion of Puerto Rico. Those showers generated rainfall accumulations of up to 3 inches in isolated areas.
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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 the northwest portion of Puerto Rico. Those showers generated rainfall accumulations of up to 3 inches in isolated areas.
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 Sep 6, 11:17 AM AST, 2 hours 43 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE SAN JUAN PR 1117 AM AST SAT SEP 6 2014 .UPDATE...LITTLE TO NO SHOWER ACTIVITY HAS BEEN OBSERVED ACROSS THE LOCAL AREA. ISOLATED SHOWERS ARE AFFECTING THE OFFSHORE CARIBBEAN WATERS AND THE MONA PASSAGE. VISIBLE SATELLITE INDICATES SOME HIGH CLOUDS OVER THE AREA WITH SOME LOW LEVEL CLOUDINESS IS DEVELOPING DUE TO OROGRAPHIC LIFTING. NO CHANGES WERE MADE TO THE INHERITED FORECAST...LATEST OBSERVATIONS AND GUIDANCE ARE IN AGREEMENT WITH THE ONGOING FORECAST. THE WESTERN HALF OF PUERTO RICO HAS A CHANCE OF SHOWERS AND THUNDERSTORMS IN THE AFTERNOON. && .AVIATION...NO SIGNIFICANT CHANGES FROM PREVIOUS DISCUSSION. VFR CONDS THROUGH THE REST OF THE MORNING WITH SHRA/TSRA ACTIVITY EXPECTED IN AND AROUND TJMZ AND TJBQ AFTER 06/17Z...POSSIBLY CAUSING AT LEAST MVFR CONDS UNTIL 06/22Z. && .MARINE...SEAS CONTINUED AT 5 FEET OR LESS OVER MOST OF THE COASTAL WATERS...WITH WINDS OF 17 KNOTS OR LESS. && .PREV DISCUSSION... /ISSUED 445 AM AST SAT SEP 6 2014/ SYNOPSIS...TROPICAL WAVE ALONG 52 WEST EARLY THIS MORNING WILL APPROACH THE LOCAL AREA MONDAY. THE LEADING EDGE OF THIS TROPICAL WAVE WILL AFFECT THE REGION LATE TONIGHT INTO SUNDAY MORNING. TUTT WILL REMAIN ALIGNED NORTHEAST OF THE AREA THROUGH THE MID NEXT WEEK. DISCUSSION...VERY LITTLE SHOWER ACTIVITY WAS OBSERVED OVER THE LOCAL ISLANDS OVERNIGHT. PARTLY CLOUDY SKIES PREVAILED OVERNIGHT...WITH ONLY LIGHT PASSING SHOWERS NOTED OVER THE COASTAL WATERS. FOR TODAY...ALTHOUGH MOISTURE HAS DECREASED SINCE YESTERDAY...STILL EXPECT THE DEVELOPMENT OF SHOWERS AND THUNDERSTORMS THIS AFTERNOON MAINLY OVER THE WESTERN INTERIOR AND NORTHWEST SECTION OF PUERTO RICO. FOR TONIGHT...THE LEADING EDGE OF A TROPICAL WAVE...WHICH WAS LOCATED NEAR 52 WEST EARLY THIS MORNING...WILL APPROACH THE LOCAL REGION. AN INCREASE IN CLOUDINESS WITH SHOWERS IS EXPECTED TONIGHT...AND CONTINUING INTO SUNDAY...AS THE WAVE MOVES ACROSS THE LOCAL AREA. FOR MONDAY...MOISTURE BEHIND THE WAVE..WILL MAINTAIN GOOD CHANCES FOR SHOWERS AND THUNDERSTORMS ACROSS MOST OF THE AREA. FOR MID NEXT WEEK...WEATHER CONDITIONS WILL REMAIN NORMAL FOR THIS TIME OF THE YEAR...WITH SHOWERS AND THUNDERSTORMS DEVELOPMENT EXPECTED OVER THE WESTERN INTERIOR...WEST AND NORTHWEST SECTIONS OF PUERTO RICO...WHILE SOME PASSING SHOWERS EXPECTED OVER THE U.S. VIRGIN ISLANDS. IN THE LONG TERM...LATEST MODEL GUIDANCE CONTINUES TO SUGGEST A VIGOROUS TROPICAL WAVE MOVING ACROSS THE NORTHEAST CARIBBEAN BY THE END OF NEXT WORKWEEK. STAY TUNED. AVIATION...MOSTLY VFR CONDITIONS EXPECTED DURING TODAY ACROSS THE LOCAL FLYING AREA. HOWEVER...AFTERNOON SHRA/ISOLD TSRA POSSIBLE OVER THE INTERIOR AND NW PR. AS A RESULT...MOUNTAIN OBSCURATIONS WITH BRIEF MVFR CONDS MAY AFFECT TJMZ AND TJBQ BTWN 18Z-21Z. WX CONDS WILL DETERIORATE LATE TONIGHT THRU SUNDAY AS A TROPICAL WAVE MOVES ACROSS THE LOCAL AREA. ESE WINDS OF 15-25 KT EXPECTED BELOW FL200. MARINE...LOCAL WINDS AND SEAS CONTINUED AT 5 FEET OR LESS OVER MOST OF THE COASTAL WATERS...WITH WINDS OF 17 KNOTS OR LESS. && .PRELIMINARY POINT TEMPS/POPS... SJU 89 78 86 77 / 20 60 60 20 STT 89 78 87 77 / 30 60 60 20 && .SJU WATCHES/WARNINGS/ADVISORIES... PR...NONE. VI...NONE. COASTAL WATERS...NONE. && 25/10
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE SAN JUAN PR 547 AM AST SAT SEP 6 2014 AMZ710>745-PRZ001>013-071000- 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- 547 AM AST SAT SEP 6 2014 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PUERTO RICO AND THE ADJACENT ATLANTIC COASTAL WATERS. .DAY ONE...TODAY AND TONIGHT SHOWERS WITH A FEW STRONG THUNDERSTORMS WILL DEVELOP ACROSS THE INTERIOR AND NORTHWEST SECTIONS OF PUERTO RICO THIS AFTERNOON. LOCALLY HEAVY RAIN AND GUSTY WINDS WILL BE POSSIBLE WITH STRONG THUNDERSTORMS OVER NORTHWEST PUERTO RICO. HEAVY RAINS MAY LEAD TO URBAN AND SMALL STREAM FLOODING. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY WEATHER CONDITIONS WILL DETERIORATE OVERNIGHT AND SUNDAY AS A TROPICAL WAVE REACHES THE LOCAL REGION. THEREFORE...HIGH MOISTURE AND INSTABILITY WILL ALLOW SHOWERS TO DEVELOP ACROSS THE LOCAL AREA...RESULTING IN PERIODS OF HEAVY RAINFALL AND LOCALIZED FLOODING. .SPOTTER INFORMATION STATEMENT... REPORTS WOULD BE GREATLY APPRECIATED. AMZ715-725-VIZ001-002-071000- ST. THOMAS ST. JOHN ADJACENT ISLANDS-ST CROIX- NEARSHORE ATLANTIC AND ADJACENT CARIBBEAN COASTAL WATERS- 547 AM AST SAT SEP 6 2014 THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE U.S. VIRGIN ISLANDS AND THE ADJACENT COASTAL WATERS. .DAY ONE...TODAY AND TONIGHT NO HAZARDOUS WEATHER IS EXPECTED. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY WEATHER CONDITIONS WILL DETERIORATE OVERNIGHT AND SUNDAY AS A TROPICAL WAVE REACHES THE LOCAL REGION. THEREFORE...HIGH MOISTURE AND INSTABILITY WILL ALLOW SHOWERS TO DEVELOP ACROSS THE LOCAL AREA...RESULTING IN PERIODS OF HEAVY RAINFALL AND LOCALIZED FLOODING. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED.
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SAN JUAN PR 151 PM AST SAT SEP 6 2014 PRC003-011-083-099-131-061830- ANASCO PR-MOCA PR-SAN SEBASTIAN PR-LAS MARIAS PR-AGUADA PR- 151 PM AST SAT SEP 6 2014 AT 148 PM AST...NATIONAL WEATHER SERVICE METEOROLOGIST DETECTED A STRONG THUNDERSTORM 4 MILES SOUTH OF SAN SEBASTIAN...MOVING WEST AT 10 MPH. THIS THUNDERSTORM IS PRODUCING INTENSE LIGHTNING...HEAVY RAIN AND STRONG GUSTY WINDS. IN ADDITION...SMALL HAIL COULD BE OBSERVED WITH THIS STORM. INTENSE LIGHTNING IS REPORTED WITH THIS STORM. IF OUTDOORS...STAY AWAY FROM ISOLATED HIGH OBJECTS SUCH AS TREES. MOVE INDOORS IF POSSIBLE. WHEN INDOORS...STAY AWAY FROM WINDOWS AND DOORS AND AVOID USING TELEPHONES UNLESS IT IS AN EMERGENCY. TRY TO UNPLUG UNNECESSARY ELECTRICAL APPLIANCES BEFORE THE THUNDERSTORM APPROACHES. JJA
The San Juan radar (TJUA), 115 km away, was scanning. The volume nearest the first event began at 17:59 UTC.
1 thunderstorm wind. Local standard time, as filed.
Tree branches downed at sector Las Lomas.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Puerto Rico in 2014Every state in 2014This day in weather historyWarnings in Puerto Rico, September 2014
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: 541025.