Ponce, PR

11:38 AM AST on May 24, 2013 (GMT -0400)
Elev: 62 ft
Lon: 66.6° W
Lat: 18.0° N
Source
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Active Advisory: Flash Flood Watch (US Severe Weather)
Tropical Weather: Invest 91E (East Pacific)
News
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Youngest Okla. Tornado Victims Remembered by Kin
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May 23, 2013
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May 22, 2013
The long, tornadic history of the Oklahoma City metro area.
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May 22, 2013
Moore, Okla. tornado survivor Bernie Morris recalls the chaos and devastation of the May 20 twister that struck the area.
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May 23, 2013
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May 22, 2013
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May 22, 2013
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May 23, 2013
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May 22, 2013
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May 22, 2013
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Weather Summary
Kari Kiefer
Weather Underground Forecast for Friday, May 24, 2013.

Showers and thunderstorms will move into the Plains, while also continuing across the East Coast on Friday. A low pressure system over the Rocky Mountains will persist on its eastward track and move into the Plains. Flow around this system will create northward flow, pulling abundant moisture and energy in from the Gulf of Mexico. This will allow for scattered showers and thunderstorms to develop across the Southern Plains again on Friday, spreading northward through the Central and Northern Plains. There is a slight chance that these storms will turn severe across northeastern Colorado, into western Kansas and Nebraska. Large hail and strong winds are likely in these areas, with possibly a tornado or two.

Meanwhile in the East, a trough of low pressure and associated cold front will slowly move eastward and offshore the East Coast on Friday. This system will allow for showers and thunderstorms to persist from the Mid-Atlantic states through Maine. Severe thunderstorms are not likely in these areas, but periods of heavy rainfall and strong winds will persist as this system lingers over the Northeast through Friday night.

Out West, an area of low pressure continues spinning over the Pacific Northwest, maintaining onshore flow. This will bring more rain showers to Oregon and Washington, with snow showers possible at highest elevations.
Weather Underground Forecast for Friday, May 24, 2013.

Showers and thunderstorms will move into the Plains, while also continuing across the East Coast on Friday. A low pressure system over the Rocky Mountains will persist on its eastward track and move into the Plains. Flow around this system will create northward flow, pulling abundant moisture and energy in from the Gulf of Mexico. This will allow for scattered showers and thunderstorms to develop across the Southern Plains again on Friday, spreading northward through the Central and Northern Plains. There is a slight chance that these storms will turn severe across northeastern Colorado, into western Kansas and Nebraska. Large hail and strong winds are likely in these areas, with possibly a tornado or two.

Meanwhile in the East, a trough of low pressure and associated cold front will slowly move eastward and offshore the East Coast on Friday. This system will allow for showers and thunderstorms to persist from the Mid-Atlantic states through Maine. Severe thunderstorms are not likely in these areas, but periods of heavy rainfall and strong winds will persist as this system lingers over the Northeast through Friday night.

Out West, an area of low pressure continues spinning over the Pacific Northwest, maintaining onshore flow. This will bring more rain showers to Oregon and Washington, with snow showers possible at highest elevations.
More News Articles

Ponce Weather at a Glance

Updated 10:56 AM AST
Weather Station
San Juan (TJSJ)
Elevation
7 ft
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Now
Mostly Cloudy
Mostly Cloudy
Temperature
85 °F
Feels Like 90 °F
Wind(mph)
18
Sunrise / Set
5:50 AM
6:55 PM
Moon
Full
Today
Thunderstorm 85 °F
T-storms
70% chance of precipitation
Tonight
Thunderstorm 77 °F
T-storms
70% chance of precipitation
Tomorrow
Thunderstorm 84 | 77 °F
T-storms
70% chance of precipitation
Sunday
Thunderstorm 86 | 77 °F
T-storms
70% chance of precipitation
Monday
Chance of a Thunderstorm 86 | 77 °F
Chance of a Thunderstorm
20% chance of precipitation
Tuesday
Chance of a Thunderstorm 88 | 77 °F
Chance of T-storms
50% chance of precipitation
Today is forecast to be nearly the same temperature as yesterday.
Conditions
Pressure
30.04 in
Visibility
10.0 miles
Clouds
Few 2500 ft
Scattered Clouds 4800 ft
Mostly Cloudy 6000 ft
Moisture
Humidity
63%
Rainfall
0.02 in
Snow Depth
Not available.
METAR
METAR TJSJ 241456Z 09016G20KT 10SM FEW025 SCT048 BKN060 29/22 A3005 RMK AO2 SLP173 VCSH SW T02940217 50005
Don't speak METAR? Read our FAQ.
Weather Radio
Launch Weather Radio
Temperature
Heat Index
90 °F
Dew Point
71 °F
Wind
Speed / Dir
18 mph from East
Wind Gust
23 mph
Health
UV
6 out of 16
Pollen
Not available.
Air Quality
Not available.
Flu Activity
Local Activity
View Flu Map
Loading…
Source: BestForecast
Descriptive Forecast
Friday
tstorms Overcast with rain showers, then thunderstorms and rain showers in the afternoon. High of 84F. Breezy. Winds from the West at 15 to 20 mph. Chance of rain 70% with rainfall amounts near 0.2 in. possible.
Friday Night
nt_tstorms Overcast with thunderstorms and rain showers. Low of 77F. Winds from the East at 10 to 15 mph. Chance of rain 70% with rainfall amounts near 0.2 in. possible.
Saturday
tstorms Overcast with thunderstorms and rain showers. High of 84F with a heat index of 90F. Winds from the East at 10 to 15 mph. Chance of rain 70% with rainfall amounts near 0.4 in. possible.
Saturday Night
nt_tstorms Overcast with thunderstorms and rain showers. Low of 77F. Winds from the ESE at 5 to 10 mph. Chance of rain 70% with rainfall amounts near 0.4 in. possible.
Sunday
tstorms Overcast with thunderstorms and rain showers. High of 86F. Winds from the East at 10 to 15 mph. Chance of rain 70% with rainfall amounts near 0.3 in. possible.
Sunday Night
nt_tstorms Overcast with thunderstorms and rain showers, then a chance of a thunderstorm and rain after midnight. Low of 77F. Winds from the East at 10 to 15 mph. Chance of rain 30%.
Monday
partlycloudy Partly cloudy with a chance of a thunderstorm and rain in the afternoon. High of 86F. Winds from the East at 10 to 15 mph. Chance of rain 20%.
Monday Night
nt_partlycloudy Overcast in the evening, then partly cloudy. Low of 77F. Winds from the ESE at 5 to 15 mph.
Tuesday
chancetstorms Overcast with a chance of a thunderstorm and rain. High of 88F with a heat index of 93F. Winds from the East at 10 to 15 mph. Chance of rain 50%.
Tuesday Night
nt_mostlycloudy Overcast. Low of 77F. Winds from the East at 5 to 15 mph.
Wednesday
cloudy Overcast with a chance of a thunderstorm. High of 90F. Winds from the ESE at 10 to 15 mph. Chance of rain 20%.
Wednesday Night
nt_chancetstorms Overcast with a chance of a thunderstorm. Low of 79F. Winds from the ESE at 10 to 15 mph. Chance of rain 40%.
Thursday
chancetstorms Mostly cloudy with a chance of a thunderstorm. High of 86F with a heat index of 93F. Winds from the ESE at 10 to 15 mph. Chance of rain 50%.
Thursday Night
nt_mostlycloudy Overcast. Low of 75F. Winds from the ESE at 5 to 15 mph.
Friday
chancetstorms Overcast with a chance of a thunderstorm. High of 86F. Winds from the SE at 10 to 15 mph. Chance of rain 50%.
Friday Night
nt_chancetstorms Mostly cloudy with a chance of a thunderstorm. Low of 79F. Winds from the ESE at 10 to 15 mph. Chance of rain 40%.
Saturday
chancetstorms Mostly cloudy with a chance of a thunderstorm. High of 88F. Winds from the ESE at 10 to 15 mph. Chance of rain 40%.
Saturday Night
nt_chancetstorms Mostly cloudy with a chance of a thunderstorm. Low of 77F. Winds from the ESE at 10 to 15 mph. Chance of rain 50% with rainfall amounts near 0.5 in. possible.
Sunday
chancetstorms Mostly cloudy with a chance of a thunderstorm. High of 86F. Winds from the ESE at 10 to 15 mph. Chance of rain 50%.
Sunday Night
nt_chancetstorms Mostly cloudy with a chance of a thunderstorm. Low of 77F. Winds from the ESE at 5 to 15 mph. Chance of rain 50% with rainfall amounts near 0.3 in. possible.
Monday
chancetstorms Mostly cloudy with a chance of a thunderstorm. High of 86F. Winds from the ESE at 10 to 15 mph. Chance of rain 40%.
Monday Night
nt_partlycloudy Clear with a chance of a thunderstorm. Low of 77F. Winds from the ESE at 5 to 10 mph. Chance of rain 20%.
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Nowcast
Flash Flood Watch in effect through Saturday afternoon...

Weather Forecast for Ponce PR

View Calendar 10-Day Forecast for station TJSJ

Friday, 24
Thunderstorm
85 | 77 °F
T-storms
Chance of
Precipitation
70%
Saturday, 25
Thunderstorm
84 | 77 °F
T-storms
Chance of
Precipitation
70%
Sunday, 26
Thunderstorm
86 | 77 °F
T-storms
Chance of
Precipitation
70%
Monday, 27
Chance of a Thunderstorm
86 | 77 °F
Chance of a Thunderstorm
Chance of
Precipitation
20%
Tuesday, 28
Chance of a Thunderstorm
88 | 77 °F
Chance of T-storms
Chance of
Precipitation
50%
Wednesday, 29
Chance of a Thunderstorm
90 | 79 °F
Chance of a Thunderstorm
Chance of
Precipitation
20%
Thursday, 30
Chance of a Thunderstorm
86 | 75 °F
Chance of T-storms
Chance of
Precipitation
50%
Friday, 31
Chance of a Thunderstorm
86 | 79 °F
Chance of T-storms
Chance of
Precipitation
50%
Saturday, 1
Chance of a Thunderstorm
88 | 77 °F
Chance of T-storms
Chance of
Precipitation
40%
Sunday, 2
Chance of a Thunderstorm
86 | 77 °F
Chance of T-storms
Chance of
Precipitation
50%
Source: BestForecast at 9:20 AM AST on May 24, 2013
Descriptive Forecast
Friday
tstorms Overcast with rain showers, then thunderstorms and rain showers in the afternoon. High of 84F. Breezy. Winds from the West at 15 to 20 mph. Chance of rain 70% with rainfall amounts near 0.2 in. possible.
Friday Night
nt_tstorms Overcast with thunderstorms and rain showers. Low of 77F. Winds from the East at 10 to 15 mph. Chance of rain 70% with rainfall amounts near 0.2 in. possible.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 78 | 72 81 | 72 80 | 73 79 | 73
Wind 11 mph West 16 mph West 13 mph West 11 mph East
Humidity 81% 74% 77% 82%
Chance of Precip. 40% 60% 60% 70%
Cloud Cover 76% 76% 49% 97%
Conditions Rain Showers Rain Showers Thunderstorm Thunderstorm
Sunrise & Sunset
5:50 AM
6:55 PM
Source: BestForecast at 9:20 AM AST on May 24, 2013
Descriptive Forecast
Saturday
tstorms Overcast with thunderstorms and rain showers. High of 84F with a heat index of 90F. Winds from the East at 10 to 15 mph. Chance of rain 70% with rainfall amounts near 0.4 in. possible.
Saturday Night
nt_tstorms Overcast with thunderstorms and rain showers. Low of 77F. Winds from the ESE at 5 to 10 mph. Chance of rain 70% with rainfall amounts near 0.4 in. possible.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 78 | 72 83 | 72 81 | 73 79 | 73
Wind 10 mph East 14 mph East 12 mph East 8 mph ESE
Humidity 82% 71% 75% 82%
Chance of Precip. 70% 70% 70% 70%
Cloud Cover 100% 93% 100% 100%
Conditions Thunderstorm Thunderstorm Thunderstorm Thunderstorm
Sunrise & Sunset
5:50 AM
6:55 PM
Source: BestForecast at 9:20 AM AST on May 24, 2013
Descriptive Forecast
Sunday
tstorms Overcast with thunderstorms and rain showers. High of 86F. Winds from the East at 10 to 15 mph. Chance of rain 70% with rainfall amounts near 0.3 in. possible.
Sunday Night
nt_tstorms Overcast with thunderstorms and rain showers, then a chance of a thunderstorm and rain after midnight. Low of 77F. Winds from the East at 10 to 15 mph. Chance of rain 30%.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 79 | 72 83 | 72 80 | 73 80 | 73
Wind 9 mph ESE 11 mph East 10 mph East 10 mph East
Humidity 80% 66% 80% 80%
Chance of Precip. 70% 70% 70% 10%
Cloud Cover 100% 95% 53% 50%
Conditions Thunderstorm Thunderstorm Thunderstorm Partly Cloudy
Sunrise & Sunset
5:50 AM
6:56 PM
Source: BestForecast at 9:20 AM AST on May 24, 2013
Descriptive Forecast
Monday
partlycloudy Partly cloudy with a chance of a thunderstorm and rain in the afternoon. High of 86F. Winds from the East at 10 to 15 mph. Chance of rain 20%.
Monday Night
nt_partlycloudy Overcast in the evening, then partly cloudy. Low of 77F. Winds from the ESE at 5 to 15 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 79 | 72 82 | 73 80 | 73 80 | 73
Wind 10 mph East 12 mph East 11 mph ESE 10 mph ESE
Humidity 81% 77% 79% 78%
Chance of Precip. 20% 10% 10% 10%
Cloud Cover 94% 66% 55% 100%
Conditions Chance of a Thunderstorm Mostly Cloudy Partly Cloudy Overcast
Sunrise & Sunset
5:50 AM
6:56 PM
Source: BestForecast at 9:20 AM AST on May 24, 2013
Descriptive Forecast
Tuesday
chancetstorms Overcast with a chance of a thunderstorm and rain. High of 88F with a heat index of 93F. Winds from the East at 10 to 15 mph. Chance of rain 50%.
Tuesday Night
nt_mostlycloudy Overcast. Low of 77F. Winds from the East at 5 to 15 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 80 | 72 85 | 73 82 | 73 79 | 73
Wind 9 mph ESE 10 mph East 10 mph East 9 mph East
Humidity 78% 66% 75% 80%
Chance of Precip. 10% 20% 20% 10%
Cloud Cover 59% 96% 100% 100%
Conditions Partly Cloudy Chance of a Thunderstorm Chance of a Thunderstorm Overcast
Sunrise & Sunset
5:50 AM
6:57 PM
Source: BestForecast at 9:20 AM AST on May 24, 2013
Descriptive Forecast
Wednesday
cloudy Overcast with a chance of a thunderstorm. High of 90F. Winds from the ESE at 10 to 15 mph. Chance of rain 20%.
Wednesday Night
nt_chancetstorms Overcast with a chance of a thunderstorm. Low of 79F. Winds from the ESE at 10 to 15 mph. Chance of rain 40%.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 80 | 72 87 | 73 79 | 74 80 | 73
Wind 7 mph ESE 11 mph ESE 11 mph ESE 10 mph ESE
Humidity 78% 63% 84% 77%
Chance of Precip. 10% 0% 20% 10%
Cloud Cover 95% 91% 100% 97%
Conditions Overcast Overcast Chance of a Thunderstorm Overcast
Sunrise & Sunset
5:50 AM
6:57 PM
Source: BestForecast at 9:20 AM AST on May 24, 2013
Descriptive Forecast
Thursday
chancetstorms Mostly cloudy with a chance of a thunderstorm. High of 86F with a heat index of 93F. Winds from the ESE at 10 to 15 mph. Chance of rain 50%.
Thursday Night
nt_mostlycloudy Overcast. Low of 75F. Winds from the ESE at 5 to 15 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 80 | 72 86 | 73 80 | 73 79 | 72
Wind 11 mph SE 11 mph SE 9 mph ESE 10 mph East
Humidity 79% 65% 76% 78%
Chance of Precip. 20% 20% 20% 10%
Cloud Cover 98% 83% 92% 98%
Conditions Chance of a Thunderstorm Chance of a Thunderstorm Chance of a Thunderstorm Overcast
Sunrise & Sunset
5:50 AM
6:57 PM
Source: BestForecast at 9:20 AM AST on May 24, 2013
Descriptive Forecast
Friday
chancetstorms Overcast with a chance of a thunderstorm. High of 86F. Winds from the SE at 10 to 15 mph. Chance of rain 50%.
Friday Night
nt_chancetstorms Mostly cloudy with a chance of a thunderstorm. Low of 79F. Winds from the ESE at 10 to 15 mph. Chance of rain 40%.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 78 | 72 84 | 74 82 | 74 79 | 73
Wind 11 mph ESE 11 mph SE 11 mph SE 9 mph East
Humidity 80% 71% 78% 83%
Chance of Precip. 20% 20% 20% 10%
Cloud Cover 97% 96% 93% 88%
Conditions Chance of a Thunderstorm Chance of a Thunderstorm Chance of a Thunderstorm Mostly Cloudy
Sunrise & Sunset
5:50 AM
6:58 PM
Source: BestForecast at 9:20 AM AST on May 24, 2013
Descriptive Forecast
Saturday
chancetstorms Mostly cloudy with a chance of a thunderstorm. High of 88F. Winds from the ESE at 10 to 15 mph. Chance of rain 40%.
Saturday Night
nt_chancetstorms Mostly cloudy with a chance of a thunderstorm. Low of 77F. Winds from the ESE at 10 to 15 mph. Chance of rain 50% with rainfall amounts near 0.5 in. possible.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 80 | 73 84 | 73 82 | 75 80 | 75
Wind 10 mph ESE 11 mph ESE 11 mph East 10 mph ESE
Humidity 84% 70% 77% 84%
Chance of Precip. 10% 10% 10% 10%
Cloud Cover 83% 86% 87% 79%
Conditions Mostly Cloudy Mostly Cloudy Mostly Cloudy Mostly Cloudy
Sunrise & Sunset
5:50 AM
6:58 PM
Source: BestForecast at 9:20 AM AST on May 24, 2013
Descriptive Forecast
Sunday
chancetstorms Mostly cloudy with a chance of a thunderstorm. High of 86F. Winds from the ESE at 10 to 15 mph. Chance of rain 50%.
Sunday Night
nt_chancetstorms Mostly cloudy with a chance of a thunderstorm. Low of 77F. Winds from the ESE at 5 to 15 mph. Chance of rain 50% with rainfall amounts near 0.3 in. possible.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 80 | 74 84 | 75 82 | 75 80 | 75
Wind 10 mph ESE 11 mph ESE 11 mph ESE 9 mph ESE
Humidity 85% 73% 81% 86%
Chance of Precip. 10% 10% 10% 10%
Cloud Cover 78% 78% 79% 82%
Conditions Mostly Cloudy Mostly Cloudy Mostly Cloudy Mostly Cloudy
Sunrise & Sunset
5:49 AM
6:58 PM
Source: BestForecast at 9:20 AM AST on May 24, 2013
Descriptive Forecast
Monday
chancetstorms Mostly cloudy with a chance of a thunderstorm. High of 86F. Winds from the ESE at 10 to 15 mph. Chance of rain 40%.
Monday Night
nt_partlycloudy Clear with a chance of a thunderstorm. Low of 77F. Winds from the ESE at 5 to 10 mph. Chance of rain 20%.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 80 | 75 84 | 75 82 | 75 80 | 75
Wind 9 mph ESE 10 mph ESE 10 mph ESE 9 mph ESE
Humidity 87% 75% 81% 85%
Chance of Precip. 10% 10% 10% 10%
Cloud Cover 86% 85% 77% %
Conditions Mostly Cloudy Mostly Cloudy Mostly Cloudy Clear
Sunrise & Sunset
Sun does not rise
Scientific Forecaster Discussion — MOS Weather Graph
Nearby
History & Almanac
May 24, 2013 Max Temp Min Temp
Normal (TJPS) 87 °F 74 °F
Record (TJPS) 91 °F (1997) 73 °F (2001)
Yesterday 84 °F 76 °F
Choose a date
Earthquake Activity
City Distance Mag. Time & Date
No recent earthquake activity has been reported nearby.
Minimum magnitude displayed is 2.5.
More information at USGS.gov
Coastal Water Temperatures
Place Temperature
Magueyes Islands, PR 82.0 °F
Yabucoa Harbor, PR 82.9 °F
Marine Forecast
Astronomy
May. 24, 2013 Rise Set
Actual Time 5:50 AM AST 6:55 PM AST
Civil Twilight 5:27 AM AST 7:19 PM AST
Nautical Twilight 4:59 AM AST 7:47 PM AST
Astronomical Twilight 4:30 AM AST 8:16 PM AST
Moon 6:36 PM AST 5:12 AM AST
Length Of Visible Light 13h 51m
Length of Day
13h 04m
Tomorrow will be 0m 34s longer.
Full, 100% of the Moon is Illuminated
Today
Full
May 25
Full
May 31
Last Quarter
Jun 8
New
Jun 16
First Quarter
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Snow Depth
Station Depth Elevation
No new snow has been reported.
Snow Depth Reports — Snow Depth Map
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Aviation
City Temp. Conditions Updated
Ponce This station is not reporting.
Mayaguez This station is not reporting.
Aquadilla 84 °F Scattered Clouds 10:50 AM AST
San Juan 85 °F Mostly Cloudy 10:56 AM AST
View all Aviation Tools
Flight To ETA Status
No flights were found.
Flight Tracker by FlightAware FlightAware
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Type Condition
Flight Rule: VFR (TJSJ)
Wind Speed: 16.0 kts.
Wind Dir: 90° (East)
Ceiling: 6000 ft

METAR TJSJ 241456Z 09016G20KT 10SM FEW025 SCT048 BKN060 29/22 A3005 RMK AO2 SLP173 VCSH SW T02940217 50005

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Event Date Forecast
No events within 10 mi of location. View all events.
Event data courtesy eviesays.com
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Weather Stations
Station Location Temp. Heat Index Dew Point Humidity Wind Precipitation Elevation Updated Type Website
APRSWXNET Ponce PR , Mercedita, PR 85 °F 90 °F 71 °F 63% SE  at  9 mph 0.00 in / hr 39 ft 11:17 AM AST MADIS
Manejo de Emergencias, Villalba, PR 84.5 °F 86 °F 65 °F 52% NE  at  1.0 mph 0.00 in / hr 45 ft 11:33 AM AST Normal  
OMMEAD, Guayanilla, PR 85.2 °F 92 °F 73 °F 66% SSE  at  9.0 mph 0.00 in / hr 118 ft 11:38 AM AST Normal  
APRSWXNET Canovanas PR , Jayuya, PR 84 °F 92 °F 75 °F 75% ESE  at  5 mph 0.01 in / hr 30 ft 11:18 AM AST MADIS
Manejo de Emergencias, Coamo, PR 84.9 °F 90 °F 70 °F 62% ENE  at  1.0 mph 0.00 in / hr 45 ft 11:33 AM AST Normal  
RAWS CAMP SANTIAGO PR, Salinas, PR 87 °F 90 °F 68 °F 53% ESE  at  15 mph 0.00 in / hr 278 ft 11:09 AM AST MADIS
RAWS GUANICA PR, Guanica, PR 87 °F 94 °F 72 °F 62% East  at  9 mph 0.00 in / hr 17 ft 11:09 AM AST MADIS
NERRS NERRS METEOROLOGICAL SITE JOBOS BA, Salinas, PR 85 °F 90 °F 71 °F 62% ESE  at  9 mph 0.00 in / hr 13 ft 10:45 AM AST MADIS
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Flash Flood Watch
Mobile & Email Alerts Statement as of 5:40 AM AST on May 24, 2013

... Flash Flood Watch in effect from noon AST today through Saturday
afternoon...

The National Weather Service in San Juan has issued a

* Flash Flood Watch for all of Puerto Rico... including Culebra and
Vieques.

* From noon AST today through Saturday afternoon

* a surge of moisture in the easterly trade winds will bring heavy
showers and scattered thunderstorms to the area. Some of these
areas will see repeated passages of heavy showers leading to flooding.

* Numerous showers and thunderstorms will raise some area small
streams and rivers to flood stage during the next 24 to 36
hours. Some roads and highways in the area will become
impassable... especially during the afternoons or early evening.

Precautionary/preparedness actions...

A Flash Flood Watch means that conditions are favorable for heavy
rain across the watch area... which may lead to flooding. If you
are in the watch area... check your preparedness requirements...
especially if you have interests along area rivers. Keep
informed... and be ready for quick action if flooding is observed
or if a Flash Flood Warning is issued.

People in the watch area should continue to be aware of the
possibility for heavy rainfall. Avoid low lying areas... and be
careful when approaching Highway dips and underpasses. The
heavy rain could also cause mudslides in areas of steep terrain.

Stay tuned to NOAA Weather Radio... local TV... radio or your
cable television provider for later statements and possible
warnings.

This product... along with other weather... hydrological and
climate information... is available on the web at
http://www.Srh.NOAA.Gov/sju or at http://weather.Gov.