San Juan, PR

11:04 PM AST on May 21, 2013 (GMT -0400)
Elev: 30 ft
Lon: 66.1° W
Lat: 18.4° N
Source
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Oklahoma Tornado: More coverage on Catastrophic EF-5 Tornado in Oklahoma
News
Miles and Minutes: Okla. Tornado By the Numbers
May 21, 2013
See the facts and figures that defined the Moore, Okla. tornado.
Moore Tornado a Rare EF5
May 21, 2013
EF5/F5 tornadoes are rare, but Moore has seen two of them in the past 15 years.
Power of Moore Tornado Dwarfs Hiroshima Atomic Bomb
May 21, 2013
Wind, humidity and rainfall combined precisely to create the massive killer tornado in Moore, Okla. And when they did, the awesome amount of energy released over that city dwarfed the power of the atomic bomb that leveled Hiroshima.
Okla Governor: We Will Rebuild After Tornado
May 21, 2013
The search and rescue efforts are ongoing in Moore, Okla. after a massive tornado levelled the town and local schools.
Weather Imagery Reveals Oklahoma Tornado
May 21, 2013
The Moore, Oklahoma tornado showed up vividly on satellite and radar.
PTSD Risk after the Oklahoma Tornado
May 21, 2013
In the wake of Mondays devastating tornado that ravaged the town of Moore, Okla., survivors are likely to feel incredible shock and numbness.
Tornado Leaves Small Hospital 'Pretty Much Destroyed'
May 21, 2013
Officials say a tornado hit a small hospital in suburban Oklahoma City, but all the 30 patients inside survived.
Obama: 'Americans From Every Corner of This Country Will Be With Them'
May 21, 2013
Obama has declared a major disaster in Oklahoma, ordering federal aid to supplement state and local recovery efforts. The president also spoke Monday with Oklahoma Gov. Mary Fallin and Rep. Tom Cole, whose home is in the heavily damaged town of Moore.
Why Don't More Homes in Oklahoma Have Basements?
May 21, 2013
The answer lies in the level of the water table and the soil texture in Oklahoma and in states across the Plains.
Photos: Deadly Tornado Outbreak Strikes Plains
May 21, 2013
A tornado outbreak struck the Plains states on May 19, 2013, leaving widespread damage in its wake.
Children and the Tornado: Helping Kids Cope
May 21, 2013
Any time children are involved in a catastrophe, emotional reactions among survivors and across the nation are particularly strong.
Recap: Tornadoes Rake Oklahoma, Kansas, Iowa
May 21, 2013
The weather imagery, video and recap from tornadoes in the Plains on May 19, 2013.
Tornado Took Similar Path to 1999 F5
May 21, 2013
Moore, Oklahoma is no stranger to devastating tornadoes.
'I Expected Chaos:' Scenes from Okla. School
May 21, 2013
A photographer who was among the first to arrive at an Oklahoma Elementary School after a tornado destroyed it, describes the heart-wrenching scene.
A Timeline of Deadly Events in Moore, Okla.
May 21, 2013
Check out this comprehensive timeline of the events that transpired in Moore, Okla.
In Tornado's Wake, Worried Parents Seek Out Kids
May 21, 2013
A desperate search was underway by parents looking to find children after the massive tornado.
Moore Already at Work on Recovery, Says Mayor
May 21, 2013
Glenn Lewis was the mayor of Moore, Okla., when the strongest tornado on record whipped the city in 1999, and he says the most recent storm won't deter the community from rebuilding.
Moore Survivor Finds Dog Buried Alive
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Watch as a tornado survivor is interrupted in the middle of interview by a little dog digging out of rubble.
Oklahoma Tornado: How to Help
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There are several agencies asking for donations to help those hit hard by the Oklahoma tornadoes.
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More News Articles
Weather Summary
Kari Kiefer
Weather Underground midday recap for Tuesday, May 21, 2013.

After a devastating severe weather day in the Plains on Monday, severe weather began to fire up again across the nation's mid-section on Tuesday.

The nearly stationary low over the Northern Plains showed signs of gradual weakening as it shifted eastward toward the Mississippi River Valley on Tuesday, while the system's associated cold front trailed southwestward from the low across the Mid-Mississippi Valley through the Southern Plains. Favorable energy and conditions ahead of the cold front combined with the moisture laden conditions of the nation's mid-section set the stage for multiple clusters of thunderstorms to develop from the Midwest into the Ozarks and the Southern Plains. Portions of north-central/northeastern Texas, southern Arkansas, northwestern Louisiana and far southeastern Oklahoma remained at moderate risk of severe thunderstorm activity as environmental conditions remained favorable for tornadoes, damaging wind gusts, and very large hail. In particular, substantial severe weather was expected across north-central Texas to the

ArkLaTex region this afternoon and evening. Areas surrounding this moderate risk region from the Southern Plains to the Tennessee/Ohio valleys and the Lower Great Lakes/Northeast remained at slight risk of severe thunderstorm development with hail, damaging wind gusts, and isolated tornadoes. In addition to severe storms, heavy rains created chances of flood and possible isolated areas of flash flooding from parts eastern Oklahoma through northern Arkansas.

Meanwhile, areas of heavy rain and widely scattered showers continued near the low in the Northern Plains and Upper Mississippi Valley and near and to the north of a nearly stationary frontal boundary extending out ahead of the system from the Great Lakes into the inland areas of the Northeast. Continued precipitation in already saturated areas of the Northern Plains and Upper Midwest maintain flood concerns from parts of North Dakota into northern Wisconsin.

Elsewhere, scattered showers and thunderstorms picked up across the Mid-Atlantic and southeastern corner of the nation through the afternoon.
Weather Underground midday recap for Tuesday, May 21, 2013.

After a devastating severe weather day in the Plains on Monday, severe weather began to fire up again across the nation's mid-section on Tuesday.

The nearly stationary low over the Northern Plains showed signs of gradual weakening as it shifted eastward toward the Mississippi River Valley on Tuesday, while the system's associated cold front trailed southwestward from the low across the Mid-Mississippi Valley through the Southern Plains. Favorable energy and conditions ahead of the cold front combined with the moisture laden conditions of the nation's mid-section set the stage for multiple clusters of thunderstorms to develop from the Midwest into the Ozarks and the Southern Plains. Portions of north-central/northeastern Texas, southern Arkansas, northwestern Louisiana and far southeastern Oklahoma remained at moderate risk of severe thunderstorm activity as environmental conditions remained favorable for tornadoes, damaging wind gusts, and very large hail. In particular, substantial severe weather was expected across north-central Texas to the

ArkLaTex region this afternoon and evening. Areas surrounding this moderate risk region from the Southern Plains to the Tennessee/Ohio valleys and the Lower Great Lakes/Northeast remained at slight risk of severe thunderstorm development with hail, damaging wind gusts, and isolated tornadoes. In addition to severe storms, heavy rains created chances of flood and possible isolated areas of flash flooding from parts eastern Oklahoma through northern Arkansas.

Meanwhile, areas of heavy rain and widely scattered showers continued near the low in the Northern Plains and Upper Mississippi Valley and near and to the north of a nearly stationary frontal boundary extending out ahead of the system from the Great Lakes into the inland areas of the Northeast. Continued precipitation in already saturated areas of the Northern Plains and Upper Midwest maintain flood concerns from parts of North Dakota into northern Wisconsin.

Elsewhere, scattered showers and thunderstorms picked up across the Mid-Atlantic and southeastern corner of the nation through the afternoon.
More News Articles

San Juan Weather at a Glance

Updated 11:04 PM AST
Elevation
33 ft
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Now
Scattered Clouds
Scattered Clouds
Temperature
80.7 °F
Feels Like 85 °F
Wind(mph)
4.4
Sunrise / Set
5:48 AM
6:53 PM
Moon
Waxing Gibbous
Tonight
Rain Showers 75 °F
Rain Showers
40% chance of precipitation
Tomorrow
Thunderstorm 86 °F
T-storms
40% chance of precipitation
Tomorrow Night
Rain Showers 75 °F
Rain Showers
30% chance of precipitation
Thursday
Rain Showers 86 | 75 °F
Rain Showers
20% chance of precipitation
Friday
Thunderstorm 86 | 75 °F
T-storms
40% chance of precipitation
Saturday
Chance of a Thunderstorm 88 | 75 °F
Chance of T-storms
50% chance of precipitation
Tomorrow is forecast to be nearly the same temperature as today.
Conditions
Pressure
30.01 in
Visibility
10.0 miles
Clouds
Few 2200 ft
Scattered Clouds 3000 ft
Moisture
Humidity
78%
Rainfall
0.02 in
Snow Depth
Not available.
METAR
METAR TJSJ 220256Z 08011G18KT 10SM FEW022 SCT030 27/23 A3002 RMK AO2 PRESRR SLP163 T02670228 53007
Don't speak METAR? Read our FAQ.
Weather Radio
Launch Weather Radio
Temperature
Heat Index
85 °F
Dew Point
73 °F
Wind
Speed / Dir
4.4 mph from SSE
Wind Gust
4.4 mph
Health
UV
0 out of 16
Pollen
Not available.
Air Quality
Not available.
Flu Activity
Local Activity
View Flu Map
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Source: BestForecast
Descriptive Forecast
Tuesday Night
nt_rain Partly cloudy with rain showers. Low of 75F. Breezy. Winds from the East at 15 to 20 mph. Chance of rain 40%.
Wednesday
tstorms Partly cloudy with thunderstorms and rain showers. High of 86F. Breezy. Winds from the East at 20 to 25 mph shifting to the West in the afternoon. Chance of rain 40%.
Wednesday Night
nt_rain Partly cloudy with rain showers. Low of 75F. Breezy. Winds from the West at 10 to 20 mph. Chance of rain 30%.
Thursday
partlycloudy Partly cloudy with rain showers. High of 86F. Breezy. Winds from the North at 15 to 20 mph shifting to the West in the afternoon. Chance of rain 20%.
Thursday Night
nt_rain Partly cloudy with rain showers. Low of 75F. Breezy. Winds from the North at 15 to 20 mph shifting to the West after midnight. Chance of rain 30%.
Friday
tstorms Partly cloudy with rain showers, then thunderstorms and rain showers in the afternoon. High of 86F with a heat index of 93F. Breezy. Winds from the SE at 10 to 20 mph. Chance of rain 40%.
Friday Night
nt_mostlycloudy Overcast with rain showers, then a chance of a thunderstorm and rain after midnight. Low of 75F. Winds from the East at 10 to 15 mph. Chance of rain 20%.
Saturday
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%.
Saturday Night
nt_chancetstorms Overcast with a chance of a thunderstorm and rain in the evening, then partly cloudy with a chance of a thunderstorm and rain. Low of 75F. Winds from the East at 10 to 15 mph. Chance of rain 50%.
Sunday
cloudy Overcast with a chance of rain, then 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%.
Sunday Night
nt_cloudy Overcast with a chance of a thunderstorm. Low of 75F. Winds from the East at 10 to 15 mph. Chance of rain 20%.
Monday
chancetstorms Overcast with a chance of a thunderstorm. High of 88F. Winds from the East at 10 to 15 mph. Chance of rain 50%.
Monday Night
nt_cloudy Overcast with a chance of a thunderstorm. Low of 75F. Winds from the ESE at 10 to 15 mph. Chance of rain 20%.
Tuesday
tstorms Mostly cloudy with thunderstorms. High of 86F. Winds from the SE at 10 to 15 mph. Chance of rain 80% with rainfall amounts near 0.9 in. possible.
Tuesday Night
nt_cloudy Overcast with a chance of a thunderstorm. Low of 77F. Winds from the ESE at 10 to 15 mph. Chance of rain 20%.
Wednesday
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%.
Wednesday 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 0.3 in. possible.
Thursday
chancetstorms Mostly cloudy with a chance of a thunderstorm. High of 88F. Winds from the ESE at 10 to 15 mph. Chance of rain 50%.
Thursday Night
nt_mostlycloudy Mostly cloudy. Low of 77F. Winds from the ESE at 10 to 15 mph.
Friday
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%.
Friday Night
nt_chancetstorms Mostly cloudy with a chance of a thunderstorm. Low of 77F. Winds from the ESE at 5 to 10 mph. Chance of rain 50% with rainfall amounts near 0.2 in. possible.
Saturday
chancetstorms Clear with a chance of a thunderstorm. High of 88F. Winds from the SE at 5 to 10 mph. Chance of rain 30%.
Saturday Night
nt_clear Clear. Low of 77F. Winds from the SE at 5 to 10 mph.
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Weather Forecast for San Juan PR

View Calendar 10-Day Forecast for station KPRSANJU22

Wednesday, 22
Thunderstorm
86 | 75 °F
T-storms
Chance of
Precipitation
40%
Thursday, 23
Rain Showers
86 | 75 °F
Rain Showers
Chance of
Precipitation
20%
Friday, 24
Thunderstorm
86 | 75 °F
T-storms
Chance of
Precipitation
40%
Saturday, 25
Chance of a Thunderstorm
88 | 75 °F
Chance of T-storms
Chance of
Precipitation
50%
Sunday, 26
Chance of a Thunderstorm
86 | 75 °F
Chance of a Thunderstorm
Chance of
Precipitation
20%
Monday, 27
Chance of a Thunderstorm
88 | 75 °F
Chance of T-storms
Chance of
Precipitation
50%
Tuesday, 28
Thunderstorm
86 | 77 °F
T-storms
Chance of
Precipitation
80%
Wednesday, 29
Chance of a Thunderstorm
88 | 77 °F
Chance of T-storms
Chance of
Precipitation
40%
Thursday, 30
Chance of a Thunderstorm
88 | 77 °F
Chance of T-storms
Chance of
Precipitation
50%
Friday, 31
Chance of a Thunderstorm
88 | 77 °F
Chance of T-storms
Chance of
Precipitation
40%
Source: BestForecast at 10:24 PM AST on May 21, 2013
Descriptive Forecast
Wednesday
tstorms Partly cloudy with thunderstorms and rain showers. High of 86F. Breezy. Winds from the East at 20 to 25 mph shifting to the West in the afternoon. Chance of rain 40%.
Wednesday Night
nt_rain Partly cloudy with rain showers. Low of 75F. Breezy. Winds from the West at 10 to 20 mph. Chance of rain 30%.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 77 | 72 82 | 72 80 | 72 78 | 72
Wind 18 mph East 21 mph East 17 mph West 16 mph West
Humidity 80% 70% 76% 79%
Chance of Precip. 40% 40% 40% 30%
Cloud Cover 57% 40% 40% 60%
Conditions Rain Showers Thunderstorm Thunderstorm Rain Showers
Sunrise & Sunset
5:48 AM
6:53 PM
The quality of the forecasted high temperature for this day is excellent. MaxT RMSE [0.73], Average RMSE [1.00]
Source: BestForecast at 10:24 PM AST on May 21, 2013
Descriptive Forecast
Thursday
partlycloudy Partly cloudy with rain showers. High of 86F. Breezy. Winds from the North at 15 to 20 mph shifting to the West in the afternoon. Chance of rain 20%.
Thursday Night
nt_rain Partly cloudy with rain showers. Low of 75F. Breezy. Winds from the North at 15 to 20 mph shifting to the West after midnight. Chance of rain 30%.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 77 | 72 83 | 72 80 | 73 78 | 73
Wind 14 mph West 18 mph West 19 mph West 18 mph West
Humidity 80% 68% 81% 84%
Chance of Precip. 30% 20% 20% 30%
Cloud Cover 60% 60% 38% 70%
Conditions Rain Showers Rain Showers Rain Showers Rain Showers
Sunrise & Sunset
5:48 AM
6:53 PM
The quality of the forecasted high temperature for this day is excellent. MaxT RMSE [0.91], Average RMSE [0.95]
Source: BestForecast at 10:24 PM AST on May 21, 2013
Descriptive Forecast
Friday
tstorms Partly cloudy with rain showers, then thunderstorms and rain showers in the afternoon. High of 86F with a heat index of 93F. Breezy. Winds from the SE at 10 to 20 mph. Chance of rain 40%.
Friday Night
nt_mostlycloudy Overcast with rain showers, then a chance of a thunderstorm and rain after midnight. Low of 75F. Winds from the East at 10 to 15 mph. Chance of rain 20%.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 77 | 72 85 | 72 80 | 73 78 | 73
Wind 16 mph West 13 mph East 11 mph East 13 mph East
Humidity 84% 65% 78% 84%
Chance of Precip. 30% 40% 40% 10%
Cloud Cover 70% 70% 66% 94%
Conditions Rain Showers Rain Showers Thunderstorm Overcast
Sunrise & Sunset
5:48 AM
6:53 PM
The quality of the forecasted high temperature for this day is excellent. MaxT RMSE [0.92], Average RMSE [1.04]
Source: BestForecast at 10:24 PM AST on May 21, 2013
Descriptive Forecast
Saturday
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%.
Saturday Night
nt_chancetstorms Overcast with a chance of a thunderstorm and rain in the evening, then partly cloudy with a chance of a thunderstorm and rain. Low of 75F. Winds from the East at 10 to 15 mph. Chance of rain 50%.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 79 | 73 85 | 73 81 | 73 78 | 73
Wind 10 mph ESE 12 mph ESE 11 mph East 10 mph East
Humidity 81% 69% 78% 86%
Chance of Precip. 10% 20% 20% 20%
Cloud Cover 90% 100% 99% 96%
Conditions Overcast Chance of a Thunderstorm Chance of a Thunderstorm Chance of a Thunderstorm
Sunrise & Sunset
5:48 AM
6:54 PM
The quality of the forecasted high temperature for this day is excellent. MaxT RMSE [1.26], Average RMSE [0.93]
Source: BestForecast at 10:24 PM AST on May 21, 2013
Descriptive Forecast
Sunday
cloudy Overcast with a chance of rain, then 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%.
Sunday Night
nt_cloudy Overcast with a chance of a thunderstorm. Low of 75F. Winds from the East at 10 to 15 mph. Chance of rain 20%.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 79 | 73 83 | 73 81 | 73 78 | 73
Wind 12 mph ESE 8 mph East 11 mph ENE 11 mph ESE
Humidity 83% 69% 75% 84%
Chance of Precip. 30% 10% 20% 10%
Cloud Cover 57% 94% 99% 100%
Conditions Chance of a Thunderstorm Overcast Chance of a Thunderstorm Overcast
Sunrise & Sunset
5:47 AM
6:54 PM
The quality of the forecasted high temperature for this day is excellent. MaxT RMSE [1.21], Average RMSE [0.90]
Source: BestForecast at 10:24 PM AST on May 21, 2013
Descriptive Forecast
Monday
chancetstorms Overcast with a chance of a thunderstorm. High of 88F. Winds from the East at 10 to 15 mph. Chance of rain 50%.
Monday Night
nt_cloudy Overcast with a chance of a thunderstorm. Low of 75F. Winds from the ESE at 10 to 15 mph. Chance of rain 20%.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 80 | 72 84 | 73 81 | 73 78 | 73
Wind 10 mph East 13 mph East 12 mph ESE 13 mph ESE
Humidity 79% 69% 78% 85%
Chance of Precip. 10% 20% 20% 10%
Cloud Cover 97% 99% 100% 99%
Conditions Overcast Chance of a Thunderstorm Chance of a Thunderstorm Overcast
Sunrise & Sunset
5:47 AM
6:55 PM
The quality of the forecasted high temperature for this day is excellent. MaxT RMSE [0.99], Average RMSE [0.97]
Source: BestForecast at 10:24 PM AST on May 21, 2013
Descriptive Forecast
Tuesday
tstorms Mostly cloudy with thunderstorms. High of 86F. Winds from the SE at 10 to 15 mph. Chance of rain 80% with rainfall amounts near 0.9 in. possible.
Tuesday Night
nt_cloudy Overcast with a chance of a thunderstorm. Low of 77F. Winds from the ESE at 10 to 15 mph. Chance of rain 20%.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 80 | 73 84 | 73 80 | 73 78 | 73
Wind 11 mph SE 11 mph ESE 10 mph SE 12 mph East
Humidity 82% 71% 79% 82%
Chance of Precip. 10% 50% 20% 20%
Cloud Cover 99% 80% 88% 97%
Conditions Overcast Thunderstorm Chance of a Thunderstorm Chance of a Thunderstorm
Sunrise & Sunset
5:47 AM
6:55 PM
The quality of the forecasted high temperature for this day is excellent. MaxT RMSE [1.03], Average RMSE [0.79]
Source: BestForecast at 10:24 PM AST on May 21, 2013
Descriptive Forecast
Wednesday
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%.
Wednesday 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 0.3 in. possible.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 79 | 73 86 | 73 81 | 73 80 | 73
Wind 10 mph ESE 10 mph ESE 10 mph East 10 mph East
Humidity 83% 66% 76% 83%
Chance of Precip. 10% 10% 10% 10%
Cloud Cover 98% 93% 85% 82%
Conditions Overcast Overcast Mostly Cloudy Mostly Cloudy
Sunrise & Sunset
5:47 AM
6:55 PM
The quality of the forecasted high temperature for this day is excellent. MaxT RMSE [0.94], Average RMSE [0.70]
Source: BestForecast at 10:24 PM AST on May 21, 2013
Descriptive Forecast
Thursday
chancetstorms Mostly cloudy with a chance of a thunderstorm. High of 88F. Winds from the ESE at 10 to 15 mph. Chance of rain 50%.
Thursday Night
nt_mostlycloudy Mostly cloudy. Low of 77F. Winds from the ESE at 10 to 15 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 80 | 74 86 | 75 82 | 75 80 | 75
Wind 10 mph ESE 11 mph ESE 11 mph ESE 10 mph ESE
Humidity 83% 69% 78% 85%
Chance of Precip. 10% 10% 10% 10%
Cloud Cover 87% 88% 86% 80%
Conditions Mostly Cloudy Mostly Cloudy Mostly Cloudy Mostly Cloudy
Sunrise & Sunset
5:47 AM
6:56 PM
The quality of the forecasted high temperature for this day is excellent. MaxT RMSE [1.20], Average RMSE [0.90]
Source: BestForecast at 10:24 PM AST on May 21, 2013
Descriptive Forecast
Friday
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%.
Friday Night
nt_chancetstorms Mostly cloudy with a chance of a thunderstorm. Low of 77F. Winds from the ESE at 5 to 10 mph. Chance of rain 50% with rainfall amounts near 0.2 in. possible.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 80 | 75 86 | 75 82 | 75 80 | 75
Wind 10 mph ESE 10 mph ESE 10 mph ESE 9 mph ESE
Humidity 84% 70% 79% 86%
Chance of Precip. 0% 10% 10% 10%
Cloud Cover 70% 71% 83% 89%
Conditions Mostly Cloudy Mostly Cloudy Mostly Cloudy Overcast
Sunrise & Sunset
5:47 AM
6:56 PM
Source: BestForecast at 10:24 PM AST on May 21, 2013
Descriptive Forecast
Saturday
chancetstorms Clear with a chance of a thunderstorm. High of 88F. Winds from the SE at 5 to 10 mph. Chance of rain 30%.
Saturday Night
nt_clear Clear. Low of 77F. Winds from the SE at 5 to 10 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 80 | 73 86 | 73 83 | 75 80 | 75
Wind 8 mph SE 8 mph SE 7 mph SE 7 mph SE
Humidity 81% 66% 77% 86%
Chance of Precip. 10% 10% 10% 0%
Cloud Cover 89% % % %
Conditions Overcast Clear Clear Clear
Sunrise & Sunset
Sun does not rise
Scientific Forecaster Discussion — MOS Weather Graph
Nearby
History & Almanac
May 21, 2013 Max Temp Min Temp
Normal (TJSJ) 88 °F 77 °F
Record (TJSJ) 95 °F (1989) 69 °F (2011)
Yesterday 87 °F 75 °F
Yesterday's Cooling Degree Days: 16
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
San Juan, PR 80.1 °F
Mayaguez, PR 84.9 °F
Esperanza, PR 82.0 °F
Marine Forecast
Astronomy
May. 21, 2013 Rise Set
Actual Time 5:48 AM AST 6:53 PM AST
Civil Twilight 5:25 AM AST 7:16 PM AST
Nautical Twilight 4:57 AM AST 7:44 PM AST
Astronomical Twilight 4:28 AM AST 8:13 PM AST
Moon 3:29 PM AST (5/21) 2:42 AM AST (5/21)
Length Of Visible Light 13h 51m
Length of Day
13h 04m
Tomorrow will be 0m 36s longer.
Waxing Gibbous, 87% of the Moon is Illuminated
Today
Waxing Gibbous
May 25
Full
May 31
Last Quarter
Jun 8
New
Jun 16
First Quarter
Visit Astronomy
Snow Depth
Station Depth Elevation
No new snow has been reported.
Snow Depth Reports — Snow Depth Map
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Travel Planning
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Aviation
City Temp. Conditions Updated
San Juan 80 °F Scattered Clouds 10:56 PM AST
Roosevelt Roads 82 °F Overcast 10:53 PM AST
Ponce This station is not reporting.
Aquadilla 79 °F Scattered Clouds 10:50 PM AST
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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: 11.0 kts.
Wind Dir: 158° (SSE)
Ceiling: Unlimited

METAR TJSJ 220256Z 08011G18KT 10SM FEW022 SCT030 27/23 A3002 RMK AO2 PRESRR SLP163 T02670228 53007

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Nearby Events
Event Date Forecast
San Juan Puerto Rico Wrap Party Weekend! 6:00 PM AST
2013-04-18		 Clear, 80°F
Event data courtesy eviesays.com
Sports
Event Date Forecast
Tigers vs. Indians 7:05 PM EDT on May 21, 2013 Chance of a Thunderstorm, 81 °F
Yankees vs. Orioles 7:05 PM EDT on May 21, 2013 Partly Cloudy, 81 °F
Event Date Forecast
Livorno vs. Brescia 6:30 PM CEST on May 22, 2013 Clear, High 69° F/ 21° C
Empoli vs. Novara 8:45 PM CEST on May 22, 2013 Clear, High 68° F/ 20° C
Event Date Forecast
Coca-Cola 600 6:16 PM EDT on May 26, 2013 Partly Cloudy, 70 °F
FedEx 400 benefiting Autism Speaks 1:15 PM EDT on June 02, 2013 Average High 81° F/ 27° C
Event Date Forecast
Crowne Plaza Invitational at Colonial 8:30 AM CDT on May 23, 2013 Partly Cloudy, 68 °F
Crowne Plaza Invitational at Colonial 8:30 AM CDT on May 24, 2013 Mostly Cloudy, 70 °F
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Year In Weather 2012

Watch the nearly year-long satellite animation as Weather Underground calls out the most significant weather events of the past year, including Superstorm Sandy and Hurricane Isaac.

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Weather Stations
Station Location Temp. Heat Index Dew Point Humidity Wind Precipitation Elevation Updated Type Website
Santurce, San Juan, PR 80.7 °F 85 °F 73 °F 78% SSE  at  4.4 mph 0.00 in / hr 33 ft 11:04 PM AST Rapid Fire  
Bomberos de Puerto Rico/ SJ, San Juan, PR 79.7 °F 84 °F 75 °F 85% East  at  7.0 mph 0.00 in / hr 26 ft 10:56 PM AST Normal  
Reparto Metropolitano, San Juan, PR 76.3 °F 76 °F 76 °F 100% SE  at  0.0 mph 0.00 in / hr 36 ft 11:04 PM AST Rapid Fire
NOS_NWLON San Juan, PR , San Juan, PR 80 °F 78 °F - - East  at  19 mph 0.00 in / hr 0 ft 10:36 PM AST MADIS
San Ignacio, San Juan, PR 74.5 °F 71 °F 74 °F 99% North  at  0.0 mph 0.00 in / hr 171 ft 11:04 PM AST Rapid Fire
MIHIGHLANDPARK WEATHER VIEW, San Juan, PR 77.9 °F 80 °F 78 °F 99% East  at  2.2 mph 0.00 in / hr 125 ft 11:04 PM AST Rapid Fire
Río Bayamón, Bayamon, PR 75.9 °F 75 °F 76 °F 99% SSE  at  1.6 mph 0.00 in / hr 56 ft 11:04 PM AST Rapid Fire  
Colinas de Fairview, Trujillo Alto, PR 75.7 °F 76 °F 71 °F 85% North  at  0.0 mph 0.00 in / hr 308 ft 11:04 PM AST Rapid Fire
Manejo de Emergencias, Carolina, PR 76.7 °F 78 °F 72 °F 84% ESE  at  1.0 mph 0.00 in / hr 40 ft 11:03 PM AST Normal  
Urb. Madelaine, Toa Alta, PR 75.3 °F 74 °F 74 °F 94% North  at  0.0 mph 0.00 in / hr 20 ft 11:03 PM AST Normal  
Carretera #1 Caguas, Caguas, PR 72.5 °F - 72 °F 97% North  at  0.0 mph 0.00 in / hr 50 ft 11:03 PM AST Normal
Ciudad Jardin, Toa Alta, PR 75.2 °F 73 °F 75 °F 99% North  at  0.0 mph 0.06 in / hr 190 ft 8:00 PM AST Normal  
Ciudad Jardin, Carolina, PR 77.7 °F 80 °F 74 °F 88% East  at  1.0 mph 0.00 in / hr 10 ft 11:01 PM AST Normal  
Bo. Tomas de Castro #2, Caguas, PR 73.3 °F 70 °F 72 °F 94% ENE  at  0.0 mph 0.00 in / hr 641 ft 11:00 PM AST Normal
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