A low level trough combined with ample amounts of tropical moisture to produced very heavy rain across the southeast, northeast, and north central sections of Puerto Rico. The total doppler radar 24 hour estimated rainfall was near 10 inches in isolated areas of northeastern Puerto Rico, mainly over the municipalities of Rio Grande and Naguabo.
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.
A low level trough combined with ample amounts of tropical moisture to produced very heavy rain across the southeast, northeast, and north central sections of Puerto Rico. The total doppler radar 24 hour estimated rainfall was near 10 inches in isolated areas of northeastern Puerto Rico, mainly over the municipalities of Rio Grande and Naguabo. Other areas received near 5 inches of rainfall, which produced flash flooding and urban and small stream flooding as well. Around 40 persons were affected by this event in the municipality of Naguabo, when their homes were flooded. Most of the damage occurred in Barrio Daguao, Urb.Diplo and Playa Hucares sector.
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 Apr 27, 11:12 AM AST, 1 hour 48 minutes earlier.
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</html>HAZARDOUS WEATHER OUTLOOK FOR PUERTO RICO AND THE U.S. VIRGIN ISLANDS NATIONAL WEATHER SERVICE SAN JUAN PR 716 AM AST SUN APR 27 2008 AMZ710>750-PRZ001>013-281130- 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- 716 AM AST SUN APR 27 2008 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PUERTO RICO AND THE ADJACENT COASTAL WATERS. .DAY ONE...TODAY AND TONIGHT ABUNDANT LOW LEVEL MOISTURE ASSOCIATED TO A LOW LEVEL TROUGH MOVING ACROSS THE FORECAST AREA THIS MORNING...AND EXPECTED TO MOVE WESTWARD THROUGH THIS EVENING...WILL COMBINE WITH DIURNAL HEATING AND LOCAL ISLAND EFFECTS TO PRODUCE MODERATE TO HEAVY SHOWER ACTIVITY AND THUNDERSTORMS ACROSS MOST OF PUERTO RICO THIS AFTERNOON. HOWEVER...WE ARE ANTICIPATING THAT THE HEAVIEST RAINFALL MAY OCCUR OVER THE WESTERN HALF OF PUERTO RICO AND INTERIOR SECTIONS OF THE ISLAND. FOR THE NEXT 12 HOURS OR SO...WE ARE ESTIMATING ONE TO THREE INCHES OF RAIN OVER THESE AREAS. HAVING SAID THAT...URBAN AND STREAM FLOOD STATEMENTS WILL BE NEEDED AS SHOWERS AND THUNDERSTORMS BEGIN TO DEVELOP ACROSS LAND AREAS LATER THIS AFTERNOON. THERE IS SLIGHT TO MODERATE CHANCE FOR MUDSLIDES IN THE STEEP MOUNTAINOUS AREAS SUCH AS THOSE ACROSS THE CORDILLERA CENTRAL AND EL YUNQUE. A MODERATE EAST NORTHEAST WIND FLOW WILL PREVAIL THROUGH LATE THIS AFTERNOON. HOWEVER...MARINERS SHOULD EXPECT PERIODS OF LOCALLY HEAVY SHOWERS AND THUNDERSTORMS MAINLY OVER THE OFFSHORE ATLANTIC AND CARIBBEAN WATERS THROUGH THE EVENING. THIS WILL CONTINUE TO MAKE HAZARDOUS MARINE CONDITIONS ACROSS THE REGIONAL WATERS. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS REQUIRED AMZ720-730-VIZ001-002-281130- ST. THOMAS ST. JOHN ADJACENT ISLANDS-ST CROIX- NEARSHORE ATLANTIC AND ADJACENT CARIBBEAN COASTAL WATERS- 716 AM AST SUN APR 27 2008 THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE U.S. VIRGIN ISLANDS AND THE ADJACENT COASTAL WATERS. .DAY ONE...TODAY AND TONIGHT ABUNDANT LOW LEVEL MOISTURE ASSOCIATED TO A LOW LEVEL TROUGH MOVING ACROSS THE FORECAST AREA THIS MORNING...AND EXPECTED TO MOVE WESTWARD THROUGH THIS EVENING...WILL COMBINE WITH DIURNAL HEATING AND LOCAL ISLAND EFFECTS TO PRODUCE MODERATE TO HEAVY SHOWER ACTIVITY AND THUNDERSTORMS ACROSS MOST OF THE U.S. VIRGIN ISLANDS THIS AFTERNOON. HOWEVER...WE ARE ANTICIPATING THAT THE HEAVIEST RAINFALL MAY OCCUR OVER THE WESTERN HALF SECTORS OF ST CROIX AND ST THOMAS. WE ARE ESTIMATING ONE TO TWO INCHES OF RAINFALL WITHIN THE NEXT 12 HOURS OR SO. HAVING SAID THAT...URBAN AND STREAM FLOOD STATEMENTS WILL BE NEEDED AS SHOWERS AND THUNDERSTORMS BEGIN TO DEVELOP ACROSS LAND AREAS LATER THIS AFTERNOON. THERE IS SLIGHT TO MODERATE CHANCE FOR MUDSLIDES IN THE STEEP MOUNTAINOUS AREAS OF ST THOMAS AND ST CROIX. STAY TUNED FOR ANY UPDATES DURING THE DAY THESE WEATHER CONDITIONS BEGIN TO AFFECT THE ISLANDS AND COASTAL WATERS. A MODERATE EAST NORTHEAST WIND FLOW WILL PREVAIL THROUGH LATE THIS AFTERNOON. HOWEVER...MARINERS SHOULD EXPECT PERIODS OF LOCALLY HEAVY SHOWERS AND THUNDERSTORMS MAINLY OVER THE OFFSHORE ATLANTIC AND CARIBBEAN WATERS THROUGH THE EVENING. THIS WILL CONTINUE TO MAKE HAZARDOUS MARINE CONDITIONS ACROSS THE REGIONAL WATERS. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS REQUIRED
The national radar mosaic for the moment the first event began.
6 heavy rain, 2 flood, 2 debris flow. Local standard time, as filed.
Emergency Managers reported flooding of road 970 near Barrio El Duque in Naguabo.
Emergency Managers reported flooding of Road 31 near exit to Highway 22 in Naguabo.
Emergency Managers reported flooding of road 192, at the Alberto Culver sector in Naguabo.
Emergency Managers reported flooding of Highway 3 near Barrio Santiago and Barrio Lima in Naguabo.
Emergency Managers reported flooding of road 31 near Sector La Pitina in Naguabo.
Emergency Management oficial reported a house was flooded at Barrio Daguao in Naguabo.
A landslide was reported along road 140 in Maguelle, Barceloneta.
Road 667 at Barrio Cortez was reported flooded in Manati.
The Fatima bridge at the intersection of road 620 and 647 was reported impassable in Vega Alta.
A landslide was reported along road 140 from the Utuado municipality to Jayuya.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Puerto Rico in 2008Every state in 2008This day in weather historyWarnings in Puerto Rico, April 2008
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: 98167, 98188, 98186, 98189, 98190, 98213, 98487, 98493, 98494, 98489.