Saint Thomas, VI

3:53 PM AST on May 18, 2013 (GMT -0400)
Elev: 669 ft
Lon: 64.9° W
Lat: 18.4° N
Source
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Weather Summary
Kari Kiefer
Weather Underground Forecast for Saturday, May 18, 2013.

A strong low pressure system will bring active weather to the center of the nation on Saturday. The system will move off the Rockies and into the Plains, which will push a warm front into the Northern Plains and Upper Midwest, while it continues pulling a cold front southeastward across the Western states. Counter clockwise flow around this system will pull more moisture and energy into the Plains from the Gulf of Mexico, allowing for showers and thunderstorms to develop from Oklahoma through the Dakotas and into Minnesota. These areas are under a slight threat of severe weather development with strong winds, large hail, and heavy rainfall. Parts of western Nebraska and northwestern Kansas are under a moderate risk of severe thunderstorm development. This area has increased risk for tornado development on Saturday.

East of this activity, a weak trough slowly moves over the Eastern Valleys, allowing for a few more widespread showers and thunderstorms to pop up from the Southern Appalachians through the Mid-Atlantic states. Meanwhile in the West, moisture from the Pacific Ocean will allow for scattered showers with afternoon thunderstorms to persist for the Northern and Central Rockies. Severe storms are not likely in these areas. In the Southwest, gusty winds, warm temperatures, and dry conditions will maintain dangerous fire weather conditions on Saturday.
Weather Underground Forecast for Saturday, May 18, 2013.

A strong low pressure system will bring active weather to the center of the nation on Saturday. The system will move off the Rockies and into the Plains, which will push a warm front into the Northern Plains and Upper Midwest, while it continues pulling a cold front southeastward across the Western states. Counter clockwise flow around this system will pull more moisture and energy into the Plains from the Gulf of Mexico, allowing for showers and thunderstorms to develop from Oklahoma through the Dakotas and into Minnesota. These areas are under a slight threat of severe weather development with strong winds, large hail, and heavy rainfall. Parts of western Nebraska and northwestern Kansas are under a moderate risk of severe thunderstorm development. This area has increased risk for tornado development on Saturday.

East of this activity, a weak trough slowly moves over the Eastern Valleys, allowing for a few more widespread showers and thunderstorms to pop up from the Southern Appalachians through the Mid-Atlantic states. Meanwhile in the West, moisture from the Pacific Ocean will allow for scattered showers with afternoon thunderstorms to persist for the Northern and Central Rockies. Severe storms are not likely in these areas. In the Southwest, gusty winds, warm temperatures, and dry conditions will maintain dangerous fire weather conditions on Saturday.
More News Articles

Saint Thomas Weather at a Glance

Updated 3:53 PM AST
Elevation
728 ft
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Now
Mostly Cloudy
Mostly Cloudy
Temperature
79.9 °F
Feels Like 83 °F
Wind(mph)
6.0
Sunrise / Set
5:45 AM
6:47 PM
Moon
First Quarter
Today
Rain Showers 86 °F
Rain Showers
20% chance of precipitation
Tonight
Rain Showers 77 °F
Rain Showers
30% chance of precipitation
Tomorrow
Rain Showers 86 | 77 °F
Rain Showers
30% chance of precipitation
Monday
Thunderstorm 86 | 77 °F
T-storms
40% chance of precipitation
Tuesday
Chance of a Thunderstorm 86 | 77 °F
Chance of T-storms
40% chance of precipitation
Wednesday
Chance of a Thunderstorm 86 | 79 °F
Chance of T-storms
50% chance of precipitation
Today is forecast to be nearly the same temperature as yesterday.
Conditions
Pressure
30.01 in
Visibility
10.0 miles
Clouds
Scattered Clouds 2900 ft
Mostly Cloudy 3900 ft
Mostly Cloudy 4900 ft
Moisture
Humidity
75%
Rainfall
0.00 in
Snow Depth
Not available.
METAR
SPECI TIST 181903Z 10010G18KT 10SM SCT029 BKN039 BKN049 29/22 A3001 RMK AO2
Don't speak METAR? Read our FAQ.
Weather Radio
Weather Radio Index
Temperature
Heat Index
83 °F
Dew Point
71 °F
Wind
Speed / Dir
6.0 mph from ESE
Wind Gust
13.0 mph
Health
UV
4 out of 16
Pollen
Not available.
Air Quality
Not available.
Flu Activity
No Report
View Flu Map
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Source: BestForecast
Descriptive Forecast
Saturday
partlycloudy Partly cloudy with rain showers in the morning, then clear with rain showers. High of 86F with a heat index of 91F. Breezy. Winds from the East at 15 to 20 mph. Chance of rain 20%.
Saturday Night
nt_rain Partly cloudy with rain showers. Low of 77F. Breezy. Winds from the ENE at 15 to 20 mph. Chance of rain 30%.
Sunday
rain Partly cloudy with rain showers. High of 86F. Breezy. Winds from the North at 15 to 20 mph. Chance of rain 30%.
Sunday Night
nt_rain Partly cloudy with rain showers. Low of 77F. Breezy. Winds from the East at 15 to 25 mph. Chance of rain 30%.
Monday
tstorms Overcast with rain showers in the morning, then partly cloudy with thunderstorms and rain showers. High of 86F. Breezy. Winds from the East at 15 to 20 mph. Chance of rain 40%.
Monday Night
nt_partlycloudy Overcast with rain showers, then a chance of a thunderstorm and rain after midnight. Low of 77F. Breezy. Winds from the East at 20 to 25 mph. Chance of rain 20%.
Tuesday
chancetstorms Overcast with a chance of a thunderstorm and rain. High of 86F. Breezy. Winds from the East at 20 to 25 mph. Chance of rain 40%.
Tuesday Night
nt_chancetstorms Overcast with a chance of a thunderstorm and rain. Low of 77F. Breezy. Winds from the East at 20 to 25 mph. Chance of rain 50%.
Wednesday
chancetstorms Overcast with a chance of a thunderstorm and rain in the morning, then partly cloudy with a chance of a thunderstorm and rain. High of 86F. Breezy. Winds from the East at 20 to 25 mph. Chance of rain 50%.
Wednesday Night
nt_chancetstorms Mostly cloudy with a chance of a thunderstorm. Low of 79F. Breezy. Winds from the East at 20 to 25 mph. Chance of rain 60% with rainfall amounts near 0.4 in. possible.
Thursday
chancetstorms Mostly cloudy with a chance of a thunderstorm. High of 86F. Breezy. Winds from the East at 20 to 25 mph. Chance of rain 70% with rainfall amounts near 0.4 in. possible.
Thursday Night
nt_chancetstorms Overcast with a chance of a thunderstorm. Low of 77F. Breezy. Winds from the East at 20 to 25 mph. Chance of rain 70% with rainfall amounts near 0.8 in. possible.
Friday
chancetstorms Mostly cloudy with a chance of a thunderstorm. High of 86F with a heat index of 93F. Breezy. Winds from the East at 20 to 25 mph. Chance of rain 60% with rainfall amounts near 0.3 in. possible.
Friday Night
nt_chancetstorms Overcast with a chance of a thunderstorm. Low of 79F. Breezy. Winds from the East at 15 to 25 mph. Chance of rain 60% with rainfall amounts near 0.4 in. possible.
Saturday
chancetstorms Mostly cloudy with a chance of a thunderstorm. High of 86F. Breezy. Winds from the East at 15 to 20 mph. Chance of rain 70% with rainfall amounts near 0.2 in. possible.
Saturday Night
nt_chancetstorms Overcast with a chance of a thunderstorm. Low of 79F. Breezy. Winds from the East at 15 to 20 mph. Chance of rain 50%.
Sunday
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%.
Sunday Night
nt_chancetstorms Mostly cloudy with a chance of a thunderstorm. Low of 79F. Breezy. Winds from the ESE at 10 to 20 mph. Chance of rain 40%.
Monday
chancetstorms Partly cloudy with a chance of a thunderstorm. High of 88F. Winds from the ESE at 10 to 15 mph. Chance of rain 40%.
Monday Night
nt_chancetstorms Partly cloudy with a chance of a thunderstorm. Low of 79F. Winds from the ESE at 10 to 15 mph. Chance of rain 40%.
Tuesday
chancetstorms Partly cloudy with a chance of a thunderstorm. High of 88F. Winds from the ESE at 10 to 15 mph. Chance of rain 40%.
Tuesday Night
nt_clear Clear with a chance of a thunderstorm. Low of 79F. Winds from the ESE at 10 to 15 mph. Chance of rain 20%.
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Weather Forecast for Saint Thomas VI

View Calendar 10-Day Forecast for station TIST

Saturday, 18
Rain Showers
86 | 77 °F
Rain Showers
Chance of
Precipitation
20%
Sunday, 19
Rain Showers
86 | 77 °F
Rain Showers
Chance of
Precipitation
30%
Monday, 20
Thunderstorm
86 | 77 °F
T-storms
Chance of
Precipitation
40%
Tuesday, 21
Chance of a Thunderstorm
86 | 77 °F
Chance of T-storms
Chance of
Precipitation
40%
Wednesday, 22
Chance of a Thunderstorm
86 | 79 °F
Chance of T-storms
Chance of
Precipitation
50%
Thursday, 23
Chance of a Thunderstorm
86 | 77 °F
Chance of T-storms
Chance of
Precipitation
70%
Friday, 24
Chance of a Thunderstorm
86 | 79 °F
Chance of T-storms
Chance of
Precipitation
60%
Saturday, 25
Chance of a Thunderstorm
86 | 79 °F
Chance of T-storms
Chance of
Precipitation
70%
Sunday, 26
Chance of a Thunderstorm
88 | 79 °F
Chance of T-storms
Chance of
Precipitation
40%
Monday, 27
Chance of a Thunderstorm
88 | 79 °F
Chance of T-storms
Chance of
Precipitation
40%
Source: BestForecast at 9:20 AM AST on May 18, 2013
Descriptive Forecast
Saturday
partlycloudy Partly cloudy with rain showers in the morning, then clear with rain showers. High of 86F with a heat index of 91F. Breezy. Winds from the East at 15 to 20 mph. Chance of rain 20%.
Saturday Night
nt_rain Partly cloudy with rain showers. Low of 77F. Breezy. Winds from the ENE at 15 to 20 mph. Chance of rain 30%.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 79 | 74 84 | 75 81 | 75 79 | 73
Wind 15 mph West 15 mph East 16 mph East 17 mph East
Humidity 84% 73% 80% 84%
Chance of Precip. 20% 20% 20% 30%
Cloud Cover 44% 23% 15% 35%
Conditions Rain Showers Rain Showers Rain Showers Rain Showers
Sunrise & Sunset
5:45 AM
6:47 PM
Source: BestForecast at 9:20 AM AST on May 18, 2013
Descriptive Forecast
Sunday
rain Partly cloudy with rain showers. High of 86F. Breezy. Winds from the North at 15 to 20 mph. Chance of rain 30%.
Sunday Night
nt_rain Partly cloudy with rain showers. Low of 77F. Breezy. Winds from the East at 15 to 25 mph. Chance of rain 30%.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 80 | 73 83 | 73 82 | 73 79 | 73
Wind 17 mph East 18 mph West 18 mph East 20 mph East
Humidity 80% 68% 75% 82%
Chance of Precip. 30% 30% 30% 30%
Cloud Cover 29% 35% 40% 53%
Conditions Rain Showers Rain Showers Rain Showers Rain Showers
Sunrise & Sunset
5:44 AM
6:47 PM
Source: BestForecast at 9:20 AM AST on May 18, 2013
Descriptive Forecast
Monday
tstorms Overcast with rain showers in the morning, then partly cloudy with thunderstorms and rain showers. High of 86F. Breezy. Winds from the East at 15 to 20 mph. Chance of rain 40%.
Monday Night
nt_partlycloudy Overcast with rain showers, then a chance of a thunderstorm and rain after midnight. Low of 77F. Breezy. Winds from the East at 20 to 25 mph. Chance of rain 20%.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 80 | 73 84 | 73 82 | 73 79 | 73
Wind 20 mph East 17 mph East 19 mph East 21 mph ENE
Humidity 81% 67% 78% 80%
Chance of Precip. 30% 40% 40% 10%
Cloud Cover 46% 20% 14% 99%
Conditions Rain Showers Rain Showers Thunderstorm Overcast
Sunrise & Sunset
5:44 AM
6:48 PM
Source: BestForecast at 9:20 AM AST on May 18, 2013
Descriptive Forecast
Tuesday
chancetstorms Overcast with a chance of a thunderstorm and rain. High of 86F. Breezy. Winds from the East at 20 to 25 mph. Chance of rain 40%.
Tuesday Night
nt_chancetstorms Overcast with a chance of a thunderstorm and rain. Low of 77F. Breezy. Winds from the East at 20 to 25 mph. Chance of rain 50%.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 80 | 72 84 | 72 82 | 73 78 | 73
Wind 20 mph East 21 mph East 22 mph ENE 22 mph East
Humidity 78% 66% 73% 80%
Chance of Precip. 20% 10% 10% 20%
Cloud Cover 98% 82% 92% 39%
Conditions Chance of a Thunderstorm Mostly Cloudy Overcast Chance of a Thunderstorm
Sunrise & Sunset
5:44 AM
6:48 PM
Source: BestForecast at 9:20 AM AST on May 18, 2013
Descriptive Forecast
Wednesday
chancetstorms Overcast with a chance of a thunderstorm and rain in the morning, then partly cloudy with a chance of a thunderstorm and rain. High of 86F. Breezy. Winds from the East at 20 to 25 mph. Chance of rain 50%.
Wednesday Night
nt_chancetstorms Mostly cloudy with a chance of a thunderstorm. Low of 79F. Breezy. Winds from the East at 20 to 25 mph. Chance of rain 60% with rainfall amounts near 0.4 in. possible.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 80 | 72 84 | 72 82 | 72 80 | 73
Wind 23 mph ENE 23 mph East 23 mph East 24 mph East
Humidity 80% 66% 73% 79%
Chance of Precip. 20% 20% 10% 20%
Cloud Cover 72% 92% 44% 62%
Conditions Chance of a Thunderstorm Chance of a Thunderstorm Partly Cloudy Chance of a Thunderstorm
Sunrise & Sunset
5:44 AM
6:48 PM
Source: BestForecast at 9:20 AM AST on May 18, 2013
Descriptive Forecast
Thursday
chancetstorms Mostly cloudy with a chance of a thunderstorm. High of 86F. Breezy. Winds from the East at 20 to 25 mph. Chance of rain 70% with rainfall amounts near 0.4 in. possible.
Thursday Night
nt_chancetstorms Overcast with a chance of a thunderstorm. Low of 77F. Breezy. Winds from the East at 20 to 25 mph. Chance of rain 70% with rainfall amounts near 0.8 in. possible.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 80 | 72 84 | 73 82 | 73 80 | 73
Wind 23 mph East 23 mph East 21 mph East 23 mph East
Humidity 78% 66% 73% 80%
Chance of Precip. 30% 20% 40% 30%
Cloud Cover 98% 86% 98% 93%
Conditions Chance of a Thunderstorm Chance of a Thunderstorm Chance of a Thunderstorm Chance of a Thunderstorm
Sunrise & Sunset
5:43 AM
6:49 PM
Source: BestForecast at 9:20 AM AST on May 18, 2013
Descriptive Forecast
Friday
chancetstorms Mostly cloudy with a chance of a thunderstorm. High of 86F with a heat index of 93F. Breezy. Winds from the East at 20 to 25 mph. Chance of rain 60% with rainfall amounts near 0.3 in. possible.
Friday Night
nt_chancetstorms Overcast with a chance of a thunderstorm. Low of 79F. Breezy. Winds from the East at 15 to 25 mph. Chance of rain 60% with rainfall amounts near 0.4 in. possible.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 80 | 73 85 | 73 82 | 73 80 | 73
Wind 21 mph East 21 mph East 20 mph East 20 mph East
Humidity 78% 66% 73% 78%
Chance of Precip. 30% 30% 30% 20%
Cloud Cover 95% 83% 97% 99%
Conditions Chance of a Thunderstorm Chance of a Thunderstorm Chance of a Thunderstorm Chance of a Thunderstorm
Sunrise & Sunset
5:43 AM
6:49 PM
Source: BestForecast at 9:20 AM AST on May 18, 2013
Descriptive Forecast
Saturday
chancetstorms Mostly cloudy with a chance of a thunderstorm. High of 86F. Breezy. Winds from the East at 15 to 20 mph. Chance of rain 70% with rainfall amounts near 0.2 in. possible.
Saturday Night
nt_chancetstorms Overcast with a chance of a thunderstorm. Low of 79F. Breezy. Winds from the East at 15 to 20 mph. Chance of rain 50%.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 81 | 73 85 | 73 82 | 73 80 | 73
Wind 19 mph East 18 mph East 19 mph East 15 mph East
Humidity 76% 65% 75% 78%
Chance of Precip. 30% 30% 30% 10%
Cloud Cover 84% 76% 98% 94%
Conditions Chance of a Thunderstorm Chance of a Thunderstorm Chance of a Thunderstorm Overcast
Sunrise & Sunset
5:43 AM
6:49 PM
Source: BestForecast at 9:20 AM AST on May 18, 2013
Descriptive Forecast
Sunday
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%.
Sunday Night
nt_chancetstorms Mostly cloudy with a chance of a thunderstorm. Low of 79F. Breezy. Winds from the ESE at 10 to 20 mph. Chance of rain 40%.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 80 | 72 86 | 73 83 | 73 81 | 74
Wind 15 mph ESE 14 mph ESE 15 mph ESE 14 mph ESE
Humidity 77% 63% 72% 80%
Chance of Precip. 10% 10% 10% 10%
Cloud Cover 86% 97% 77% 54%
Conditions Mostly Cloudy Overcast Mostly Cloudy Partly Cloudy
Sunrise & Sunset
5:43 AM
6:50 PM
Source: BestForecast at 9:20 AM AST on May 18, 2013
Descriptive Forecast
Monday
chancetstorms Partly cloudy with a chance of a thunderstorm. High of 88F. Winds from the ESE at 10 to 15 mph. Chance of rain 40%.
Monday Night
nt_chancetstorms Partly 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 80 | 75 86 | 75 83 | 76 81 | 76
Wind 14 mph ESE 13 mph ESE 13 mph East 13 mph ESE
Humidity 81% 69% 78% 84%
Chance of Precip. 10% 10% 10% 10%
Cloud Cover 53% 46% 35% 29%
Conditions Partly Cloudy Partly Cloudy Partly Cloudy Partly Cloudy
Sunrise & Sunset
5:43 AM
6:50 PM
Source: BestForecast at 9:20 AM AST on May 18, 2013
Descriptive Forecast
Tuesday
chancetstorms Partly cloudy with a chance of a thunderstorm. High of 88F. Winds from the ESE at 10 to 15 mph. Chance of rain 40%.
Tuesday Night
nt_clear Clear with a chance of a thunderstorm. Low of 79F. Winds from the ESE at 10 to 15 mph. Chance of rain 20%.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 81 | 75 86 | 75 83 | 75 82 | 75
Wind 12 mph ESE 12 mph ESE 12 mph ESE 11 mph ESE
Humidity 83% 69% 74% 80%
Chance of Precip. 10% 10% 10% 10%
Cloud Cover 27% 28% 32% %
Conditions Partly Cloudy Partly Cloudy Partly Cloudy Clear
Sunrise & Sunset
Sun does not rise
Scientific Forecaster Discussion — MOS Weather Graph
Nearby
History & Almanac
May 18, 2013 Max Temp Min Temp
Normal (TIST) 88 °F 76 °F
Record (TIST) 95 °F (1995) 69 °F (1972)
Yesterday 88 °F 77 °F
Yesterday's Cooling Degree Days: 18
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
Yabucoa Harbor, PR 87.1 °F
Esperanza, PR 84.0 °F
Charlotte Amalie, VI 89.1 °F
Marine Forecast
Astronomy
May. 18, 2013 Rise Set
Actual Time 5:45 AM AST 6:47 PM AST
Civil Twilight 5:21 AM AST 7:10 PM AST
Nautical Twilight 4:54 AM AST 7:38 PM AST
Astronomical Twilight 4:25 AM AST 8:07 PM AST
Moon 12:42 PM AST 12:36 AM AST
Length Of Visible Light 13h 49m
Length of Day
13h 02m
Tomorrow will be 0m 39s longer.
First Quarter, 56% of the Moon is Illuminated
Today
First Quarter
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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Aviation
City Temp. Conditions Updated
St. Thomas 84 °F Mostly Cloudy 3:03 PM AST
St. Croix 84 °F Scattered Clouds 2:53 PM AST
Roosevelt Roads 81 °F Overcast 3:28 PM AST
San Juan 85 °F Scattered Clouds 2:56 PM AST
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Flight To ETA Status
No flights were found.
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Type Condition
Flight Rule: VFR (TIST)
Wind Speed: 10.0 kts.
Wind Dir: 107° (ESE)
Ceiling: 3900 ft

SPECI TIST 181903Z 10010G18KT 10SM SCT029 BKN039 BKN049 29/22 A3001 RMK AO2

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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
NorthSide, St Thomas 79.9 °F 83 °F 71 °F 75% ESE  at  6.0 mph 0.00 in / hr 728 ft 3:53 PM AST Rapid Fire
NOS_NWLON Charlotte Amalie, VI , Charlotte Amalie, VI 84 °F 81 °F - - ENE  at  6 mph 0.00 in / hr 0 ft 3:24 PM AST MADIS
APRSWXNET Charlotte Amalie VI , Charlotte Amalie, VI 81 °F 85 °F 72 °F 75% NE  at  10 mph 0.00 in / hr 419 ft 3:32 PM AST MADIS
Estate Bethany 81.3 °F 85 °F 71 °F 71% SE  at  5.0 mph 0.00 in / hr 443 ft 3:52 PM AST Normal  
NOS_NWLON Lameshur Bay, St. John , Cruz Bay, VI 81 °F 79 °F - - North  at  - 0.00 in / hr 0 ft 3:30 PM AST MADIS
Fahie Hill, Road Town 79.3 °F 83 °F 72 °F 78% SSW  at  0.0 mph 0.00 in / hr 900 ft 3:52 PM AST Normal
Al's Hilltop, Culebra, PR 82.0 °F 87 °F 73 °F 74% East  at  11.0 mph 0.00 in / hr 250 ft 3:50 PM AST Normal  
MARITIME , Kingshill, VI 79 °F 81 °F 68 °F 70% East  at  15 mph 0.00 in / hr 0 ft 2:00 PM AST MADIS
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