Puerto Rico, 2006

Heavy Rain in Puerto Rico, June 20, 2006

June 20, 2006 · NWS SJU · 2 events in 1 county or zone

A tropical wave over Hispaniola produced an area of rain and showers that extended across eastern Puerto Rico during the evening hours.

The toll

Deaths
0
Injuries
0
Property damage
None recorded
Crop damage
None recorded
Events
2

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.

What happened

The episode as NWS SJU wrote it up.

A tropical wave over Hispaniola produced an area of rain and showers that extended across eastern Puerto Rico during the evening hours.

What forecasters said that day

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 20, 4:22 PM AST, 2 hours 58 minutes earlier.

Area forecast discussion, Jun 20, 4:22 PM AST, 2 hours 58 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN JUAN PR
422 PM AST TUE JUN 20 2006

.DISCUSSION...
AN ACTIVE TROPICAL WAVE LOCATED ALONG 68/69 WEST LATE THIS AFTERNOON
CONTINUED TO MOVE WEST NEAR 15 KNOTS...ACCOMPANIED BY A LOW LEVEL
WIND SURGE. CONSIDERABLE AMOUNTS OF LOW LEVEL MOISTURE WILL TRAIL
THIS TROPICAL WAVE ALTHOUGH IT IS FORECAST TO EXIT THE LOCAL
AREA DURING THE OVERNIGHT HOURS. AS A RESULT...SCATTERED TO NUMEROUS
SHOWERS AND THUNDERSTORMS WILL CONTINUE TO MOVE ACROSS THE REGIONAL
WATERS AND AFFECT PARTS OF THE LOCAL ISLANDS ESPECIALLY DURING THE
EARLY EVENING AND EARLY MORNING HOURS. MODERATE TO HEAVY RAINFALL
WILL ACCOMPANY SOME OF THESE SHOWERS AND STORMS AND WILL THEREFORE
CAUSE MINOR FLOODING IN URBAN AREAS...AS WELL AS LOW LYING AND POOR
DRAINAGE AREAS. AS A RESULT...A FLASH FLOOD WATCH REMAINS IN EFFECT
UNTIL 8 PM THIS EVENING FOR THE NORTHERN HALF OF PUERTO RICO AND MAY
QUITE POSSIBLE BE EXTENDED OR MODIFIED DURING THE EVENING HOURS FOR
OTHER MUNICIPALITIES.

ON WEDNESDAY...CONDITIONS WILL SLOWLY IMPROVE THROUGHOUT THE
DAY...AS THERE WILL BE SUFFICIENT LOW LEVEL MOISTURE AROUND TO
COMBINE WITH DIURNAL AND LOCAL TERRAIN EFFECTS TO PRODUCE ADDITIONAL
SHOWERS AND ISOLATED THUNDERSTORM ACTIVITY ACROSS THE INTERIOR WEST
SECTIONS OF PUERTO RICO DURING THE AFTERNOON. THIS U.S. VIRGIN WILL
GRADUALLY IMPROVE...BUT SHOWERS AND AN ISOLATED THUNDERSTORM IS STILL
POSSIBLE OVER ONE OR TWO OF THE ISLANDS.

&&

.PRELIMINARY POINT TEMPS/POPS...
SJU  80  89  80  89 /  60  70  50  50
STT  79  85  79  85 /  50  60  40  50

&&

.SJU WATCHES/WARNINGS/ADVISORIES...
PR...FLASH FLOOD WATCH UNTIL 8 PM AST THIS EVENING FOR PRZ001-PRZ002-
     PRZ005-PRZ008-PRZ009-PRZ010.
     SMALL CRAFT ADVISORY IN EFFECT FOR AMZ710...AMZ730 AND AMZ740.

VI...SMALL CRAFT ADVISORY IN EFFECT FOR AMZ710 AND AMZ730.

&&

09
Hazardous weather outlook, Jun 20, 6:20 AM AST, 13 hours before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SAN JUAN PR
620 AM AST TUE JUN 20 2006

PRZ001>013-AMZ710>750-211000-
620 AM AST TUE JUN 20 2006

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PUERTO RICO.

.TODAY AND TONIGHT...TROPICAL WAVE MOVING ACROSS PUERTO RICO THIS
MORNING WILL CONTINUE TO AFFECT THE LOCAL WEATHER CONDITIONS FOR THE
REST OF THIS MORNING...MAINLY ACROSS THE SOUTHERN PORTION OF THE
ISLAND AND THEN THE WESTERN INTERIOR AND NORTHWEST OF PUERTO
RICO...THIS AFTERNOON THROUGH THE EVENING. SHOWERS COULD BE HEAVY
AND NUMEROUS AT TIMES WITH EMBEDDED THUNDERSTORM ACTIVITY...WHICH
WILL LEAD TO THE ISSUANCE OF MORE URBAN AND SMALL STREAM ADVISORIES
THROUGH THE DAY. DANGEROUS LIGHTNING AND BRIEF STRONG STORMS AND
GUSTY WINDS ARE POSSIBLE OVER THE REGIONAL WATERS. A FEW WATERSPOUTS
COULD ALSO BE POSSIBLE UNDER THIS WEATHER CONDITIONS EXPECTED TODAY
ALONG THE COASTAL AREAS.

RESIDENTS AND VISITORS ARE REMINDED TO USE EXTRA CAUTION AROUND
LOCAL RIVERS AND SMALL STREAMS THROUGH THE EVENING HOURS. MUDSLIDES
ARE POSSIBLE OVER AREAS WHERE THE SOIL IS ALREADY SATURATED FROM
PREVIOUS RAIN EVENTS OVER THE PAST FEW DAYS.

.DAYS TWO THROUGH SEVEN...MOISTURE AND SHOWERS ASSOCIATED WITH THE
TROPICAL WAVE WILL CONTINUE TO AFFECT THE LOCAL ISLANDS THROUGH AT
LEAST THE END OF THE WORK WEEK. THIS MOISTURE LEFT BEHIND BY THE
WAVE WILL CONTINUE TO INTERACT WITH LOCAL EFFECTS AND DIURNAL
HEATING...TO PRODUCE SHOWERS AND THUNDERSTORMS ACROSS THE LOCAL
ISLANDS EACH DAY OF THIS WEEK MAINLY DURING THE AFTERNOON HOURS.

.SPOTTER CALL TO ACTION STATEMENT...

SPOTTER ACTIVATION MAY BE REQUIRED THIS AFTERNOON.

VIZ001-002-AMZ710>730-211000-
620 AM AST TUE JUN 20 2006

THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE U.S. VIRGIN ISLANDS.

.TODAY AND TONIGHT...A TROPICAL WAVE MOVING ACROSS PUERTO RICO THIS
MORNING WILL CONTINUE TO AFFECT THE WEATHER CONDITIONS FOR THE LOCAL
ISLANDS THE REST OF THIS MORNING AND AFTERNOON. SHOWERS COULD BE
HEAVY AND NUMEROUS AT TIMES WITH EMBEDDED THUNDERSTORM
ACTIVITY...WHICH MAY LEAD TO THE ISSUANCE OF URBAN AND SMALL STREAM
ADVISORIES LATER TODAY. DANGEROUS LIGHTNING AND BRIEF STRONG STORMS
AND GUSTY WINDS ARE POSSIBLE OVER THE REGIONAL WATERS. A FEW
WATERSPOUTS COULD ALSO BE POSSIBLE UNDER THIS WEATHER CONDITIONS
EXPECTED TODAY ALONG THE COASTAL AREAS.

RESIDENTS AND VISITORS ARE REMINDED TO USE EXTRA CAUTION AROUND
LOCAL RIVERS AND GUTS THROUGH THE EVENING HOURS.

.DAYS TWO THROUGH SEVEN...MOISTURE ASSOCIATED WITH THE TROPICAL WAVE
WILL CONTINUE TO AFFECT THE ISLANDS THROUGH AT LEAST THE END OF
WEEK.

.SPOTTER CALL TO ACTION STATEMENT...

SPOTTER ACTIVATION MAY BE REQUIRED THIS AFTERNOON.

STAY TUNED TO NOAA WEATHER RADIO AND OTHER LOCAL MEDIA FOR FURTHER
DETAILS OR UPDATES.

FOR ADDITIONAL INFORMATION...VISIT THE NATIONAL WEATHER SERVICE WEB
SITE FOR PUERTO RICO AND THE U.S. VIRGIN ISLANDS AT (ALL LOWERCASE
LETTERS): HTTP://WWW.SRH.NOAA.GOV/SJU.

FROM YOUR PDA/PHONE: HTTP://MOBILE.SRH.NOAA.GOV OR
WWW.SRH.NOAA.GOV/WML

In the hours before

Special weather statement, Jun 20, 2:17 PM AST, 5 hours 3 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SAN JUAN PR
217 PM AST TUE JUN 20 2006

PRZ005-008>010-201930-
NORTHWEST-NORTH CENTRAL-MAYAGUEZ AND VICINITY-WESTERN INTERIOR-
217 PM AST TUE JUN 20 2006

DOPPLER WEATHER RADAR SHOWED STRONG THUNDERSTORMS CONTINUING TO
DEVELOP ACROSS THESE AREAS. THESE STRONG THUNDERSTORMS WILL MOVE
NORTHWEST AT LEAST THROUGH 330 PM. THE STRONGEST STORMS ARE NOW OVER
PARTS OF ARECIBO...HATILLO...SAN SEBASTIAN...MOCA AND AGUADILLA. YOU
CAN EXPECT OCCASIONAL CLOUD TO GROUND LIGHTNING...WIND GUSTS UP TO
AS MUCH AS 40 MPH...PEA SIZED HAIL AND TORRENTIAL RAINFALL IN
ISOLATED AREAS.

RAM
Special weather statement, Jun 20, 2:27 PM AST, 4 hours 53 minutes before
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Event by event

2 heavy rain. Local standard time, as filed.

Heavy Rain, Northeast

When
June 20, 7:20 PM AST to 9:20 PM AST
Where
Northeast County, Fajardo
Reported by
EMERGENCY MANAGER

Urban and street flooding was reported along Union and Marcelo Gotay streets.

Heavy Rain, Northeast

When
June 20, 9:35 PM AST to 10:35 PM AST
Where
Northeast County, Naguabo
Reported by
EMERGENCY MANAGER

Road 31 at La Pitina sector in Naguabo was reported flooded and impassable

What these are

Heavy Rain
Rainfall totals unusual for the place and season that did not produce a flood.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

More

Every storm in Puerto Rico in 2006Every state in 2006This day in weather historyWarnings in Puerto Rico, June 2006

Sources

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 2026-10-01. Each event’s entry at NCEI: 5521284, 5521285.