Afternoon showers and thunderstorms developed over the northwest section of Puerto Rico and produced heavy rain over the Aguadilla and Moca area.
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.
Afternoon showers and thunderstorms developed over the northwest section of Puerto Rico and produced heavy rain over the Aguadilla and Moca area.
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 Jun 27, 10:10 AM AST, 3 hours 50 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE SAN JUAN PR 1010 AM AST SAT JUN 27 2009 .UPDATE...NO REAL CHANGES TO MAKE TO GOING FORECAST. ALMOST ALL SITES REPORTING HAZE...WILL CONTINUE WITH STRONG SAL AIRMASS PROBABLY WELL INTO THE UPCOMING WEEK. MOSTLY STABLE CONDITIONS THIS AFTERNOON WITH ONLY FOCUSED CONVECTION IN THE NORTHWESTERN PORTION OF PUERTO RICO AND SOME VI STREAMERS. OTHERWISE...ALL OTHER AREAS SHOULD REMAIN DRY...HOT...HAZY AND HUMID. && .AVIATION...5-6 SM VSBY IN HZ EXPECTED TODAY AS SAHARAN AIR LAYER STILL FIRMLY IN PLACE. WEAK SELY FLOW MAY FOCUS A FEW SHOWERS AND MVFR CIGS AT TJBQ AFT 18Z...OTHERWISE...ALL VFR OR MVFR WITH HZ. && .PREV DISCUSSION... /ISSUED 449 AM AST SAT JUN 27 2009/ DISCUSSION...A HIGH PRESSURE RIDGE EXTENDING FROM THE SURFACE THROUGH THE MID LEVELS OF THE ATMOSPHERE WILL BE THE DOMINANT WEATHER FEATURE ACROSS THE LOCAL ISLANDS DURING THE NEXT SEVERAL DAYS...PRODUCING A SUBSIDENCE WEATHER PATTERN ACROSS THE REGION. IN FACT...THE GFS MODEL GUIDANCE SHOWS PWAT VALUES OF 1.7 OR LESS FOR THE NEXT SEVERAL DAYS AND FOR THE FIRST DAYS OF THE UPCOMING MONTH. AN UPPER LEVEL LOW...TUTT...JUST NORTHEAST OF THE NORTHERN LEEWARD ISLANDS THIS MORNING...WILL MOVE TO THE NORTHEAST ACROSS THE CENTRAL ATLANTIC DURING THE NEXT FEW DAYS...WITH ANY INFLUENCE OVER THE LOCAL REGION. LATEST OPTICAL THICKNESS CHARTS INDICATED A LARGE AREA OF SAHARAN AIR LAYER...SAL...EXTENDING JUST FROM THE LOCAL ISLANDS EASTWARD ACROSS THE TROPICAL ATLANTIC FOR SEVERAL HUNDREDS MILES. THIS FEATURE WILL CONTINUE TO INHIBIT THE DEVELOPMENT OF SHOWERS AND THUNDERSTORMS...PRODUCING HAZY CONDITIONS AND AT THE SAME TIME LOWERING THE VISIBILITIES ACROSS THE FA UNTIL AT LEAST SUNDAY. BOTH...THE NAM AND GFS MODELS...SUGGEST THAT A SOUTHEASTERLY LOW LEVEL WIND FLOW WILL PREVAIL ACROSS THE REGION DURING THE NEXT FEW DAYS...PRODUCING ABOVE NORMAL TEMPERATURES ESPECIALLY ACROSS NORTHERN COASTAL MUNICIPALITIES OF PUERTO RICO...INCLUDING THE SAN JUAN METROPOLITAN AREA. DURING THE NEXT SEVERAL DAYS...ONLY THE TYPICAL SUMMER DIURNAL INDUCED SHOWER ACTIVITY IS EXPECTED...BUT ESPECIALLY OVER INTERIOR AND NORTHWESTERN PUERTO RICO DURING THE AFTERNOONS...WITH VERY LIMITED ACTIVITY ELSEWHERE ACROSS THE FA. LATEST SATELLITE IMAGERY THIS MORNING DEPICTED A WEAK TROPICAL WAVE ACROSS EASTERN HISPANIOLA. THIS WAVE WILL CONTINUE TO MOVE WESTWARD AWAY FROM THE FA...WITH LIMITED CONVECTION DUE TO THE PRESENCE OF LOW TO MID LEVEL SAL ACROSS THE REGION. ANOTHER...MORE HEALTHY...TROPICAL WAVE WAS ALONG 40 WEST THIS MORNING. AVIATION...EXPECT MOSTLY VFR CONDITIONS AT ALL TAF SITES DURING THE EARLY MORNING HOURS WITH ONLY LIGHT PASSING SHOWERS MOVING OVER OR ACROSS THE COASTAL WATERS OF TNCM...TKPK...TISX...AND TIST. SAHARAN DUST WILL CONTINUE TO AFFECT THE LOCAL ISLANDS...PRODUCING HAZY CONDITIONS AND REDUCING VISIBILITIES TO 5-6 MILES ACROSS THE MAJORITY OF THE LOCAL TAF SITES AND ACROSS MOUNTAINOUS AREAS IN PUERTO RICO. BETWEEN 17Z-21Z...A FEW SHOWERS AND AN ISOLATED TSTM MAY DEVELOP ACROSS PARTS OF THE CORDILLERA CENTRAL AND WEST INTERIOR SECTION OF PUERTO RICO...THEN LATER DRIFT WEST NORTHWEST TOWARDS THE COASTAL AREAS OF WESTERN PUERTO RICO. NO OTHER SIGNIFICANT FLYING HAZARD ARE EXPECTED AT THIS TIME. && .PRELIMINARY POINT TEMPS/POPS... SJU 92 80 92 79 / 10 0 10 0 STT 88 78 88 79 / 20 10 10 10 && .SJU WATCHES/WARNINGS/ADVISORIES... PR...NONE. VI...NONE. && 93/07
HAZARDOUS WEATHER OUTLOOK FOR PUERTO RICO AND THE U.S. VIRGIN ISLANDS NATIONAL WEATHER SERVICE SAN JUAN PR 531 AM AST SAT JUN 27 2009 AMZ710>745-PRZ001>013-280945- 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- 531 AM AST SAT JUN 27 2009 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PUERTO RICO AND THE ADJACENT COASTAL WATERS. .DAY ONE...TODAY AND TONIGHT A LARGE AND DENSE AREA OF SUSPENDED SAHARAN DUST SPREAD ACROSS THE LOCAL ISLANDS WILL CONTINUE THROUGH TONIGHT. THIS DUST WILL CONTINUE TO PRODUCE VERY HAZY CONDITIONS LOCALLY...RESULTING IN GREATLY REDUCED VISIBILITIES. IN ADDITION...RESIDENTS AND VISITORS WITH RESPIRATORY AILMENTS MAY NOTICE INCREASED DIFFICULTY IN BREATHING DUE TO THE COMBINATION OF HEAT...HUMIDITY AND THE DUST...AND ARE URGED TO STAY INDOORS IN AIR CONDITIONING. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY SUSPENDED SAHARAN DUST WILL CONTINUE ACROSS THE REGION A LEAST THROUGH SUNDAY. THEREAFTER...NO SIGNIFICANT WEATHER HAZARDS IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME. AMZ715-725-VIZ001-002-280945- ST. THOMAS ST. JOHN ADJACENT ISLANDS-ST CROIX- NEARSHORE ATLANTIC AND ADJACENT CARIBBEAN COASTAL WATERS- 531 AM AST SAT JUN 27 2009 THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE U.S. VIRGIN ISLANDS AND THE ADJACENT COASTAL WATERS. .DAY ONE...TODAY AND TONIGHT A LARGE AND DENSE AREA OF SUSPENDED SAHARAN DUST SPREAD ACROSS THE LOCAL ISLANDS WILL CONTINUE THROUGH TONIGHT. THIS DUST WILL CONTINUE TO PRODUCE VERY HAZY CONDITIONS LOCALLY...RESULTING IN GREATLY REDUCED VISIBILITIES. IN ADDITION...RESIDENTS AND VISITORS WITH RESPIRATORY AILMENTS MAY NOTICE INCREASED DIFFICULTY IN BREATHING DUE TO THE COMBINATION OF HEAT...HUMIDITY AND THE DUST...AND ARE URGED TO STAY INDOORS IN AIR CONDITIONING. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY SUSPENDED SAHARAN DUST WILL CONTINUE ACROSS THE REGION A LEAST THROUGH SUNDAY THEREAFTER...O SIGNIFICANT WEATHER HAZARDS IE EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.
The national radar mosaic for the moment the first event began.
1 lightning. Local standard time, as filed.
A person was struck by lightning in Barrio Aceituna of Moca while trimming his home backyard during a thunderstorm.
As the offices recorded each death: direct deaths were caused by the weather itself, indirect ones by something it set in motion.
| Event | Date | Age | Sex | Where | Kind |
|---|---|---|---|---|---|
| Lightning, Moca | 2009-06-27 | 43 | Male | Outside/Open Areas | Direct |
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Puerto Rico in 2009Every state in 2009This day in weather historyWarnings in Puerto Rico, June 2009
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: 186026.