Showers with isolated thunderstorms developed in the afternoon over the southwestern Puerto Rico. Most of the showers and thunderstorms moved over the Mona Passage.
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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 with isolated thunderstorms developed in the afternoon over the southwestern Puerto Rico. Most of the showers and thunderstorms moved over the Mona Passage. Rainfall accumulations of one inch were reported in some 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 13, 11:46 AM AST, 2 hours 4 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE SAN JUAN PR 1146 AM AST SAT SEP 13 2014 .UPDATE...CLEAR TO PARTLY CLOUDY SKIES WITH LIMITED SHOWER ACTIVITY WAS DETECTED OVER THE FORECAST AREA SO FAR THIS MORNING. DOPPLER WEATHER RADAR DETECTED SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS ACROSS THE CARIBBEAN COASTAL WATERS. UNDER AN EAST NORTHEAST WIND FLOW...SHOWERS AND THUNDERSTORMS WILL DEVELOP THIS AFTERNOON ACROSS WESTERN INTERIOR AND SOUTHWEST PUERTO RICO THIS AFTERNOON. AN UPPER LEVEL LOW JUST NORTH NORTHEAST OF PUERTO RICO WILL REMAINS AS THE MAIN WEATHER FEATURE ACROSS THE LOCAL ISLANDS FOR THE NEXT COUPLE OF DAYS. HOWEVER THE LIMITED MOISTURE CONTENT OF THE ATMOSPHERE IN COMBINATION WITH THE SAHARAN DUST IS EXPECTED TO INHIBIT THE DEVELOPMENT OF SHOWERS AND THUNDERSTORMS ACROSS THE REGION FOR THE NEXT COUPLE OF DAYS. && .AVIATION...VFR CONDS EXPECTED FOR ALL TAF SITES. VCSH/VCTS POSSIBLE FOR TJMZ AFTER 13/18Z AND MNT OBSCURATIONS ACROSS CENTRAL PR. ENE WINDS WILL PREVAIL AT ABOUT 10-15 KTS WITH SEA BREEZE VARIATIONS. && .MARINE...WINDS WILL STRENGTHEN SOMEWHAT TODAY THEN WEAKEN THROUGH MID NEXT WEEK. ENE SWELL 5-6 FT ASSOCIATED WITH TS EDOUARD WILL START REACHING THE LOCAL ATLC WATERS MON NIGHT. && .PREV DISCUSSION... /ISSUED 551 AM AST SAT SEP 13 2014/ SYNOPSIS...SAHARAN DUST WILL EXIT THE REGION TODAY AND MOISTURE WILL INCREASE. TUTT TO THE NORTH OF THE LOCAL AREA WILL SLOWLY MOVE TO THE NORTHEAST THROUGH THE NEXT FEW DAYS. SFC HIGH PRESSURE ACROSS THE CENTRAL ATLANTIC WILL BRING WINDS FROM THE ENE TODAY. MID LEVEL RIDGE WILL DEVELOP ACROSS THE CENTRAL ATLANTIC. TS EDOUARD WILL MOVE INTO THE CENTRAL ATLANTIC BUT WILL BRING A SWELL TO THE LOCAL AREA LATE MONDAY INTO WEDNESDAY. DISCUSSION...WEATHER REMAINED FAIRLY DRY OVERNIGHT BUT TEMPERATURES REMAINED RATHER WARM WITH THE SAN JUAN AIRPORT STAYING AT 82 DEGREES MOST OF THE NIGHT AND DIPPING DOWN ONLY TO 81 AS OF THIS WRITING. THE SAHARAN DUST IS EXPECTED TO CONTINUE EXITING THE LOCAL AREA THROUGH THE EARLY MORNING HOURS WHILE AN AREA OF HIGHER MOISTURE MOVES IN. SFC AND MID LEVEL HIGH PRESSURES ACROSS THE CENTRAL ATLANTIC WILL KEEP AN ENE WIND FLOW ACROSS THE LOCAL AREA TODAY. THIS GENERAL FLOW WILL COMBINE WITH THE INCREASE IN MOISTURE AND LOCAL EFFECTS TO CAUSE THE DEVELOPMENT OF SHOWERS AND THUNDERSTORMS ACROSS SEVERAL SECTORS IN PUERTO RICO THIS AFTERNOON...WITH THE CENTRAL AND SOUTHWESTERN SECTIONS OF PR HAVING THE HIGHEST CHANCE OF SHOWERS AND THUNDERSTORMS. HAVING SAID THAT...PASSING SHOWERS WITH THE INCREASE IN MOISTURE AND A FEW THUNDERSTORMS ARE POSSIBLE ELSEWHERE. A SIMILAR SETUP IS EXPECTED ON SUNDAY. AVAILABLE MOISTURE WILL THEN DECREASE AGAIN STARTING EARLY MONDAY. RELATIVELY DRY AIR IS EXPECTED THROUGH NEXT WEEK...WITH THE GFS MODEL INDICATING P-WAT VALUES AS LOW AS 1.22 INCHES ON WEDNESDAY. LONG RANGE MODELS INDICATE AN AREA OF HIGHER MOISTURE APPROACHING THE LOCAL AREA ON FRIDAY. THIS AREA HAS BEEN DECLARED BY THE NHC AS INVEST 93L. INVEST 93L CURRENTLY HAS A MEDIUM CHANCE OF DEVELOPING INTO A TROPICAL CYCLONE IN THE NEXT 5 DAYS...HOWEVER THE ENVIRONMENT FOR DEVELOPMENT WILL BECOME INCREASINGLY HOSTILE AS IT APPROACHES THE LOCAL AREA. AT THIS TIME IT LOOKS LIKE IT WILL APPROACH THE LOCAL AREA AS A TROPICAL WAVE ON FRIDAY...WITH LINGERING MOISTURE THROUGH NEXT SUNDAY. AVIATION...VFR CONDS EXPECTED FOR ALL TAF SITES. VCSH/VCTS POSSIBLE FOR TJMZ AFTER 13/18Z AND MNT OBSCURATIONS ACROSS CENTRAL PR. ENE WINDS WILL PREVAIL AT ABOUT 10-15 KTS WITH SEA BREEZE VARIATIONS. MARINE...WINDS WILL STRENGTHEN SOMEWHAT TODAY THEN WEAKEN THROUGH MID NEXT WEEK. ENE SWELL 5-6 FT ASSOCIATED WITH TS EDOUARD WILL START REACHING THE LOCAL ATLC WATERS MON NIGHT. && .PRELIMINARY POINT TEMPS/POPS... SJU 89 79 90 79 / 20 30 30 30 STT 89 79 89 79 / 20 30 30 30 && .SJU WATCHES/WARNINGS/ADVISORIES... PR...NONE. VI...NONE. COASTAL WATERS...NONE. && 72/71
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE SAN JUAN PR 556 AM AST SAT SEP 13 2014 AMZ710>745-PRZ001>013-141000- 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- 556 AM AST SAT SEP 13 2014 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PUERTO RICO AND THE ADJACENT ATLANTIC COASTAL WATERS. .DAY ONE...TODAY AND TONIGHT NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED. AMZ715-725-VIZ001-002-141000- ST. THOMAS ST. JOHN ADJACENT ISLANDS-ST CROIX- NEARSHORE ATLANTIC AND ADJACENT CARIBBEAN COASTAL WATERS- 556 AM AST SAT SEP 13 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 AT THIS TIME. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED.
The San Juan radar (TJUA), 112 km away, was scanning. The volume nearest the first event began at 17:53 UTC.
1 hail. Local standard time, as filed.
Hail was reported at Puerto Real sector in Cabo Rojo.
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: 541052.