Air Sports Net
Aviation Weather Report for Jaffrey, New Hampshire
Current Conditions at
JAFFREY, NH - (KAFN)
48°
Cloudy
Light Rain
as of 6:52 PM EST
Rel. Humidity: 53%
Dew Point: 32°F
Visibility: 10 Miles
Pressure: 29.99 in.
Flight Rule: VFR
Sun Almanac
Naut Sunrise:
5:30 AM
Civil Sunrise:
6:04 AM
Sunrise:
6:35 AM
Sunset:
4:29 PM
Civil Sunset:
5:00 PM
Naut Sunset:
5:33 PM
Wind Data
8 MPH
210° Southwest
Cloud Level(s): Solid Overcast at 9000 ft
New Hampshire Weather Conditions
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New Hampshire Cloud Cover

Aviation Weather Forecast at Jaffrey, New Hampshire
Station: KAFN    North: 42.80    West: -72.00    Timezone: Eastern Standard Time    UTC: -5    Model: National Blend of Models - Aviation Format
DATE       
HOUR10:00 PM1:00 AM4:00 AM7:00 AM10:00 AM1:00 PM4:00 PM7:00 PM10:00 PM1:00 AM4:00 AM7:00 AM10:00 AM1:00 PM4:00 PM7:00 PM10:00 PM1:00 AM4:00 AM7:00 AM10:00 AM1:00 PM
SKY Cloudy
Aviation Weather 96% Clouds
Cloudy
Aviation Weather 95% Clouds
Cloudy
Aviation Weather 92% Clouds
Partly Cloudy
Aviation Weather 56% Clouds
Partly Cloudy
Aviation Weather 54% Clouds
Partly Cloudy
Aviation Weather 46% Clouds
Mostly Clear
Aviation Weather 32% Clouds
Mostly Clear
Aviation Weather 15% Clouds
Mostly Clear
Aviation Weather 24% Clouds
Mostly Clear
Aviation Weather 32% Clouds
Mostly Clear
Aviation Weather 20% Clouds
Partly Cloudy
Aviation Weather 58% Clouds
Partly Cloudy
Aviation Weather 61% Clouds
Partly Cloudy
Aviation Weather 39% Clouds
Mostly Clear
Aviation Weather 18% Clouds
Mostly Clear
Aviation Weather 14% Clouds
Clear
Aviation Weather 9% Clouds
Clear
Aviation Weather 8% Clouds
Clear
Aviation Weather 7% Clouds
Clear
Aviation Weather 6% Clouds
Clear
Aviation Weather 4% Clouds
Clear
Aviation Weather 3% Clouds
TEMP
(F)
44
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45
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47
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47
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55
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58
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56
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48
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47
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42
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39
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42
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43
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41
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33
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31
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28
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25
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24
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36
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42
TemperatureTemperatureTemperatureTemperatureTemperatureTemperatureTemperatureTemperature
WIND CHILL39414343---464541373235363425242118173139
WIND DIRECTION
(AZIMUTH)

Help

220
Wind Direction

220
Wind Direction

220
Wind Direction

230
Wind Direction

250
Wind Direction

260
Wind Direction

260
Wind Direction

240
Wind Direction

240
Wind Direction

260
Wind Direction

280
Wind Direction

300
Wind Direction

320
Wind Direction

330
Wind Direction

330
Wind Direction

330
Wind Direction

340
Wind Direction

340
Wind Direction

340
Wind Direction

340
Wind Direction

360
Wind Direction

360
Wind Direction
AVERAGE
WIND SPEEDS

(MPH)

Help
7
Wind SpeedWind SpeedWind SpeedWind SpeedWind SpeedWind SpeedWind SpeedWind Speed
7
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8
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8
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9
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10
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7
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4
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4
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6
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8
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9
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11
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12
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10
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9
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7
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6
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5
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5
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5
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4
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MAXIMUM
WIND GUST SPEEDS

(MPH)

Help
17
Wind Gust SpeedWind Gust SpeedWind Gust SpeedWind Gust SpeedWind Gust SpeedWind Gust SpeedWind Gust SpeedWind Gust Speed
16
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18
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17
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20
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21
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15
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10
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11
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20
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26
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20
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13
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12
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10
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10
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9
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HOUR10:00 PM1:00 AM4:00 AM7:00 AM10:00 AM1:00 PM4:00 PM7:00 PM10:00 PM1:00 AM4:00 AM7:00 AM10:00 AM1:00 PM4:00 PM7:00 PM10:00 PM1:00 AM4:00 AM7:00 AM10:00 AM1:00 PM
DATE       
HOUR10:00 PM1:00 AM4:00 AM7:00 AM10:00 AM1:00 PM4:00 PM7:00 PM10:00 PM1:00 AM4:00 AM7:00 AM10:00 AM1:00 PM4:00 PM7:00 PM10:00 PM1:00 AM4:00 AM7:00 AM10:00 AM1:00 PM
CLOUD COVERAGE
%
96 95 92 56 54 46 32 15 24 32 20 58 61 39 18 14 9 8 7 6 4 3
CLOUD
BASE
@ 60%
COVERAGE
(AGL in
Feet)


Help

3500
Cloud Base % Coverage in Feet

600
Cloud Base % Coverage in Feet

500
Cloud Base % Coverage in Feet

1800
Cloud Base % Coverage in Feet

2700
Cloud Base % Coverage in Feet

4500
Cloud Base % Coverage in Feet

4500
Cloud Base % Coverage in Feet

4500
Cloud Base % Coverage in Feet

3500
Cloud Base % Coverage in Feet

3500
Cloud Base % Coverage in Feet

4900
Cloud Base % Coverage in Feet

3400
Cloud Base % Coverage in Feet
LOWEST
CLOUD
BASE
(AGL in
Feet)


Help

3500
Low Cloud Base in Feet

600
Low Cloud Base in Feet

300
Low Cloud Base in Feet

1100
Low Cloud Base in Feet

2000
Low Cloud Base in Feet

3000
Low Cloud Base in Feet

3500
Low Cloud Base in Feet

4300
Low Cloud Base in Feet

2400
Low Cloud Base in Feet

2800
Low Cloud Base in Feet

2600
Low Cloud Base in Feet

3000
Low Cloud Base in Feet

1600
Low Cloud Base in Feet

1700
Low Cloud Base in Feet

2200
Low Cloud Base in Feet

1800
Low Cloud Base in Feet

13K
Low Cloud Base in Feet

25K
Low Cloud Base in Feet

20K
Low Cloud Base in Feet

16K
Low Cloud Base in Feet

26K
Low Cloud Base in Feet
VISIBILITY
(Miles)
9
VisibilityVisibilityVisibilityVisibilityVisibilityVisibilityVisibilityVisibility
2
VisibilityVisibilityVisibilityVisibilityVisibilityVisibilityVisibilityVisibility
3
VisibilityVisibilityVisibilityVisibilityVisibilityVisibilityVisibilityVisibility
7
VisibilityVisibilityVisibilityVisibilityVisibilityVisibilityVisibilityVisibility
10
VisibilityVisibilityVisibilityVisibilityVisibilityVisibilityVisibilityVisibility
10
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10
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10
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10
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10
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10
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10
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10
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10
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10
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10
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10
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10
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10
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10
VisibilityVisibilityVisibilityVisibilityVisibilityVisibilityVisibilityVisibility
10
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10
VisibilityVisibilityVisibilityVisibilityVisibilityVisibilityVisibilityVisibility
FLIGHT RULE

Help
VFRIFRLIFRVFRVFRVFRVFRVFRVFRVFRVFRVFRVFRVFRVFRVFRVFRVFRVFRVFRVFRVFR
HOUR10:00 PM1:00 AM4:00 AM7:00 AM10:00 AM1:00 PM4:00 PM7:00 PM10:00 PM1:00 AM4:00 AM7:00 AM10:00 AM1:00 PM4:00 PM7:00 PM10:00 PM1:00 AM4:00 AM7:00 AM10:00 AM1:00 PM
DATE       
HOUR10:00 PM1:00 AM4:00 AM7:00 AM10:00 AM1:00 PM4:00 PM7:00 PM10:00 PM1:00 AM4:00 AM7:00 AM10:00 AM1:00 PM4:00 PM7:00 PM10:00 PM1:00 AM4:00 AM7:00 AM10:00 AM1:00 PM
CHANCE OF PRECIP
87%
Chance of Precipitation
70%
Chance of Precipitation
9%
Chance of Precipitation
1%
Chance of Precipitation
12%
Chance of Precipitation
15%
Chance of Precipitation
3%
Chance of Precipitation
-
Chance of Precipitation
-
Chance of Precipitation
-
Chance of Precipitation
-
Chance of Precipitation
PRECIP AMOUNT
(RANGE
IN INCHES)
 0.08 0.07 0.01 - - - - - - -
CHANCE OF THUNDER
%

Help
1
Chance of ThunderChance of ThunderChance of ThunderChance of ThunderChance of ThunderChance of ThunderChance of ThunderChance of Thunder
1
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1
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0
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0
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0
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0
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0
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0
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0
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0
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0
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0
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0
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0
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0
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0
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0
Chance of ThunderChance of ThunderChance of ThunderChance of ThunderChance of ThunderChance of ThunderChance of ThunderChance of Thunder
PROBABILITY THAT PRECIP IS RAIN
%


Help
746462132111516110000000000
REL HUM
%

Help
82
Relative HumidityRelative HumidityRelative HumidityRelative HumidityRelative HumidityRelative HumidityRelative HumidityRelative Humidity
96
Relative HumidityRelative HumidityRelative HumidityRelative HumidityRelative HumidityRelative HumidityRelative HumidityRelative Humidity
96
Relative HumidityRelative HumidityRelative HumidityRelative HumidityRelative HumidityRelative HumidityRelative HumidityRelative Humidity
100
Relative HumidityRelative HumidityRelative HumidityRelative HumidityRelative HumidityRelative HumidityRelative HumidityRelative Humidity
80
Relative HumidityRelative HumidityRelative HumidityRelative HumidityRelative HumidityRelative HumidityRelative HumidityRelative Humidity
61
Relative HumidityRelative HumidityRelative HumidityRelative HumidityRelative HumidityRelative HumidityRelative HumidityRelative Humidity
64
Relative HumidityRelative HumidityRelative HumidityRelative HumidityRelative HumidityRelative HumidityRelative HumidityRelative Humidity
82
Relative HumidityRelative HumidityRelative HumidityRelative HumidityRelative HumidityRelative HumidityRelative HumidityRelative Humidity
82
Relative HumidityRelative HumidityRelative HumidityRelative HumidityRelative HumidityRelative HumidityRelative HumidityRelative Humidity
82
Relative HumidityRelative HumidityRelative HumidityRelative HumidityRelative HumidityRelative HumidityRelative HumidityRelative Humidity
82
Relative HumidityRelative HumidityRelative HumidityRelative HumidityRelative HumidityRelative HumidityRelative HumidityRelative Humidity
82
Relative HumidityRelative HumidityRelative HumidityRelative HumidityRelative HumidityRelative HumidityRelative HumidityRelative Humidity
64
Relative HumidityRelative HumidityRelative HumidityRelative HumidityRelative HumidityRelative HumidityRelative HumidityRelative Humidity
52
Relative HumidityRelative HumidityRelative HumidityRelative HumidityRelative HumidityRelative HumidityRelative HumidityRelative Humidity
50
Relative HumidityRelative HumidityRelative HumidityRelative HumidityRelative HumidityRelative HumidityRelative HumidityRelative Humidity
60
Relative HumidityRelative HumidityRelative HumidityRelative HumidityRelative HumidityRelative HumidityRelative HumidityRelative Humidity
60
Relative HumidityRelative HumidityRelative HumidityRelative HumidityRelative HumidityRelative HumidityRelative HumidityRelative Humidity
62
Relative HumidityRelative HumidityRelative HumidityRelative HumidityRelative HumidityRelative HumidityRelative HumidityRelative Humidity
65
Relative HumidityRelative HumidityRelative HumidityRelative HumidityRelative HumidityRelative HumidityRelative HumidityRelative Humidity
68
Relative HumidityRelative HumidityRelative HumidityRelative HumidityRelative HumidityRelative HumidityRelative HumidityRelative Humidity
43
Relative HumidityRelative HumidityRelative HumidityRelative HumidityRelative HumidityRelative HumidityRelative HumidityRelative Humidity
31
Relative HumidityRelative HumidityRelative HumidityRelative HumidityRelative HumidityRelative HumidityRelative HumidityRelative Humidity
DEW POINT
(F)

Help
39
Dew PointDew PointDew PointDew PointDew PointDew PointDew PointDew Point
44
Dew PointDew PointDew PointDew PointDew PointDew PointDew PointDew Point
46
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47
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49
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45
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44
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43
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42
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40
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37
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34
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31
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27
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24
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21
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19
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17
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15
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15
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16
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14
Dew PointDew PointDew PointDew PointDew PointDew PointDew PointDew Point
TEMP
DEW POINT
SPREAD

(F)

Help
5
Temp Dew Point SpreadTemp Dew Point SpreadTemp Dew Point SpreadTemp Dew Point SpreadTemp Dew Point SpreadTemp Dew Point SpreadTemp Dew Point SpreadTemp Dew Point Spread
1
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1
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0
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6
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13
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12
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5
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17
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12
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12
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11
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10
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9
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20
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28
Temp Dew Point SpreadTemp Dew Point SpreadTemp Dew Point SpreadTemp Dew Point SpreadTemp Dew Point SpreadTemp Dew Point SpreadTemp Dew Point SpreadTemp Dew Point Spread
HOUR10:00 PM1:00 AM4:00 AM7:00 AM10:00 AM1:00 PM4:00 PM7:00 PM10:00 PM1:00 AM4:00 AM7:00 AM10:00 AM1:00 PM4:00 PM7:00 PM10:00 PM1:00 AM4:00 AM7:00 AM10:00 AM1:00 PM
DATE       
New Hampshire State Summary
of upper and lower values of current conditions amongst 12 locations
in New Hampshire
High
Temp
54°
Manchester
Low
Temp
37°
Berlin
and 1 other location
Wind
Speed
8mph
Jaffrey
High
Pressure
30.02Hg
Nashua/Boire Field
Low
Pressure
29.93Hg
Berlin
Average temperature in New Hampshire 47°
# Locations Reporting Rain 5
# Locations Reporting VFR
(Visual Flight Rules)
12



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The Raw Data used in this forecast was obtained from the National Weather Service's National Blend of Models and is not subject to copyright protection. The contents, including graphics and display format, are under copyright by Air Sports Net.

Terms of Use

Regardless of what this program has forecasted, it is not intended to be a substitution for good common sense. Check your conditions before you launch and only launch in conditions that you are familiar with and are certified to fly in. The user assume the entire risk associated with the use of this data. Fly safely.

This forecast and the related content/links on this page are not a substitution for the official weather briefing from the FAA. Please contact the FAA for more information on pilot briefings or call 1-800-WX-BRIEF.

As with all forecasts, weather conditions can change dramatically from what has been forecasted. We do not guarantee the weather forecast is accurate enough to be used for flying. Use extreme caution before flying any aircraft. By using this forecast, you agree that there may be differences in forecast conditions and actual flying conditions. You also agree that we shall not be liable for any compensatory, direct, indirect, incidental, consequential or punitive damages, income or profit loss, or any claims of any parties whatsoever with respect to this service. These terms may change from time to time without notice. Further terms of use can be found at https://www.usairnet.com/terms.htm

Launch Code V5.10 ©2002-2024 Air Sports Net - All Rights Reserved
Launch Code Frequently Asked Questions

Q) Can you add another city to the list of available cities in the Launch Code program?.

A) The list of cities shown is the cities in which the National Weather Service has forecast for. We believe that this list is the most current available but from time to time we do omit a city without knowing. You can check our list against the NWS list by visiting this page and comparing it to our list of cities. If you find a city not listed on our site, please contact us and we will add the forecast to our database.

Q) The Launch Code time is 3 hour time blocks. What is the forecast for other times than the ones shown?

A) The National Weather Service only provides the data in 3 hour blocks. You can estimate what the forecast might be at a particular time by using the times before and after the time you want. The temperature and wind speed graphs utilizes such an estimate by connecting the data with a straight line.

Q) How accurate is the forecast?

A) You local accuracy may vary from week to week and season to season. We have found that the forecast are generally accurate and often very close. We do get the occasional email that complains about the accuracy but 99% of all emails concerning accuracy have spoken highly of the quality of the forecast. Just remember that there are no guarantees of accuracy or suitability for a particular purpose. The National Weather Service has performed accuracy test on their forecast data. The results of these tests can be found at http://www.nws.noaa.gov/mdl/synop/smbpublications.php

Q) Does the time correspond to the middle of the box or to either the left or right side of the column?

A) The times shown going across the page is representative of the middle of the column that it is in.

Q) Are the altitudes MSL or AGL?

A) Altitudes are based upon Above Ground Level (AGL) for the height of cloud base.

Q) Does the cloudbase / ceiling range show the forecasted top and bottom of the clouds?

A) No. The cloudbase / ceiling is the elevation range of the bottom of the cloud. There is no reference given to the top of the cloud.

Q) What is an Azimuth?

A) See this page for help with understanding azimiths

Q) I have noticed that the date on the raw data screen and National Weather Service web page is different than the date shown on the Launch Code forecast page. Why?

A) At first glance it may look like the dates generated by the Launch Code program are different. Actually there is no difference in the time the weather events occur. The data from the National Weather Service and the raw data screen is based upon Universal Time Code or UTC. UTC is the time in London England. If the date of the UTC is for 0100 on July 4th or 1:00 am July 4th then this would equate to 9:00 PM on July 3rd for the east coast of the USA (DST). Why? Just as there is a difference in New York time and California time, there is a difference in UTC time and your local time. The Launch Code program automatically converts the UTC time to the local time of the forecast city.

Q) Why are the humidity, dew point, and the temperature dew point spread important.

A) See this page for help with understanding humidity, dew point, and spread and how it interacts with flying.

Q) Why can't I see the entire forecast on my computer screen without having to scroll to the right?

A) If you can't see the entire forecast without scrolling left and right, you can change your screen resolution. For Windows users, simply right click anywhere on an empty space on your desktop, select properties, select settings, then select your screen resolution by sliding the screen resolution bar to the right. This page is best viewed with a 1280 x 1024 or larger screen resolution. For more information on changing your screen resolution visit this Microsoft Windows page

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