3 products issued by NWS for: San Juan PR
Special Weather Statement
Special Weather Statement
National Weather Service San Juan PR
223 PM AST Fri May 16 2025
PRZ001-005-006-161900-
San Juan and Vicinity PR-North Central PR-Central Interior PR-
223 PM AST Fri May 16 2025
...A STRONG THUNDERSTORM WILL IMPACT VEGA BAJA...MOROVIS...
NARANJITO...VEGA ALTA...DORADO...COROZAL AND TOA ALTA THROUGH 300 PM
AST...
At 222 PM AST, Doppler radar was tracking a strong thunderstorm over
Corozal, moving northeast at 5 mph.
HAZARD...Wind gusts up to 40 mph.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
Torrential rainfall is also occurring with this storm and may lead to
localized flooding. Do not drive your vehicle through flooded
roadways.
Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.
&&
LAT...LON 1827 6630 1831 6643 1842 6637 1838 6620
TIME...MOT...LOC 1822Z 205DEG 5KT 1831 6632
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH
$$
DS
Hydrologic Outlook
Hydrologic Outlook PRC001-003-005-007-009-011-013-015-017-019-021-023-025-027-029-031- 033-035-037-039-041-043-045-047-049-051-053>055-057-059-061-063-065- 067-069-071-073-075-077-079-081-083-085-087-089-091-093-095-097-099- 101-103-105-107-109-111-113-115-117-119-121-123-125-127-129-131-133- 135-137-139-141-143-145-147-149-151-153-VIC010-020-030-162200- Hydrologic Outlook National Weather Service San Juan PR 1246 PM AST Fri May 16 2025 ...THE RISK OF FLOODING CONTINUES FOR PUERTO RICO AND THE VIRGIN ISLANDS THROUGH SATURDAY... An upper-level trough moving across the Dominican Republic, combined with abundant moisture, will result in the development of showers and thunderstorms across the local islands today and Saturday. Today, showers are expected to develop across the islands, with the highest accumulations across the interior, west and northwest Puerto Rico. Then, tonight, as the trough crosses the region, the showers and thunderstorms will spread across the eastern half of Puerto Rico, including Vieques and Culebra, and also over the Virgin Islands. This activity is expected to continue on Saturday too, but the weather is expected to improve on Sunday, as the trough departs toward the open Atlantic waters. Based on the latest guidance, there is a moderate confidence in the forecast (40-60%), and the rainfall amounts are still expected to range from 2 to 4 inches with locally higher amounts. Due to already saturated soils and rivers and tributaries running well above normal levels, there is a risk for flooding across Puerto Rico and the Virgin Islands through Saturday. Additional impacts include landslide, urban, and flash flood in areas with the heaviest amount of rainfall. $$ ERG
Hazardous Weather Outlook
Hazardous Weather Outlook National Weather Service San Juan PR 512 AM AST Fri May 16 2025 AMZ711>745-PRZ001>013-170915- 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- 512 AM AST Fri May 16 2025 This Hazardous Weather Outlook is for portions of Puerto Rico. .DAY ONE...Today and Tonight .Lightning...Isolated thunderstorms, particularly across eastern, central, and western to northwestern Puerto Rico, as well as portions of the San Juan metropolitan area. Stay alert and be prepared to take shelter if storms develop. .Excessive Rainfall...Flooding in urban areas, roads, small streams, and washes, particularly across eastern Puerto Rico, interior to northwestern Puerto Rico and downwind of El Yunque and the local islands. There is a low chance of isolated flash floods. Elsewhere, plan for water ponding on roads and in poorly drained areas. .Wind...Breezy conditions (18-22 kts | 21-25 mph), particularly across coastal areas of southern and northern Puerto Rico, Vieques and Culebra. Unsecured items could blow around. .Marine Conditions...Small craft should exercise caution, particularly across the offshore Caribbean waters and the Mona Passage. .Rip Currents...Life-threatening rip currents are possible in the surf zone, particularly across northern and southeastern PR, as well as eastern Vieques and Culebra. Isolated stronger rip currents may occur elsewhere, especially near piers, jetties, and channels. .DAYS TWO THROUGH SEVEN...Saturday through Thursday Increasing moisture and favorable upper-level conditions will enhance shower and thunderstorm development, raising the risk of flooding and lightning. Limited to elevated risk through Monday, becoming limited after. The most significant risk is likely through Saturday, when peak moisture and instability are forecast. A limited excessive heat risk will return next week, especially in northern and western Puerto Rico, particularly for those sensitive to heat when outdoors without proper cooling or hydration. A Saharan Air Layer will also continue to filter into the local area during the next few days. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be needed. $$