How do I interpret this “sky cover” chart?What is the best way to stay safe while photographing lightning...
Should we release the security issues we found in our product as CVE or we can just update those on weekly release notes?
Where is the 1/8 CR apprentice in Volo's Guide to Monsters?
Did CPM support custom hardware using device drivers?
Calculus II Professor will not accept my correct integral evaluation that uses a different method, should I bring this up further?
Russian cases: A few examples, I'm really confused
Professor being mistaken for a grad student
Latest web browser compatible with Windows 98
Sword in the Stone story where the sword was held in place by electromagnets
Brexit - No Deal Rejection
How to explain that I do not want to visit a country due to personal safety concern?
Replacing Windows 7 security updates with anti-virus?
Rules about breaking the rules. How do I do it well?
Is it normal that my co-workers at a fitness company criticize my food choices?
Can elves maintain concentration in a trance?
Bash: What does "masking return values" mean?
Current sense amp + op-amp buffer + ADC: Measuring down to 0 with single supply
How do anti-virus programs start at Windows boot?
Why doesn't the EU now just force the UK to choose between referendum and no-deal?
RegionDifference for Cylinder and Cuboid
How can I change step-down my variable input voltage? [Microcontroller]
What are the possible solutions of the given equation?
Why must traveling waves have the same amplitude to form a standing wave?
Why are the outputs of printf and std::cout different
Have researchers managed to "reverse time"? If so, what does that mean for physics?
How do I interpret this “sky cover” chart?
What is the best way to stay safe while photographing lightning storms?How to find Cloud cover data in GFS grib modelsHow does MSLP change with elevation? trying to interpolate MSLPHow to interpret cloud coverage chart?How to calculate air temperature for given time, location and altitude?Human hurricane forecasting?Can I use radar data to estimate snowfall, or is there a better way?Relationship between pressure, temperature and density in meterologyEstimating Average RainfallAre there “transparent” clouds?
$begingroup$
The image below is a screenshot of forecasted sky cover in percentage for various parts of Arizona. Is the sky cover percentage the percentage of each pixel that has cloud, or is it the percentage of a circle with a certain radius where a certain pixel is the center? Not sure how to word it more clearly.
meteorology weather-forecasting
$endgroup$
add a comment |
$begingroup$
The image below is a screenshot of forecasted sky cover in percentage for various parts of Arizona. Is the sky cover percentage the percentage of each pixel that has cloud, or is it the percentage of a circle with a certain radius where a certain pixel is the center? Not sure how to word it more clearly.
meteorology weather-forecasting
$endgroup$
add a comment |
$begingroup$
The image below is a screenshot of forecasted sky cover in percentage for various parts of Arizona. Is the sky cover percentage the percentage of each pixel that has cloud, or is it the percentage of a circle with a certain radius where a certain pixel is the center? Not sure how to word it more clearly.
meteorology weather-forecasting
$endgroup$
The image below is a screenshot of forecasted sky cover in percentage for various parts of Arizona. Is the sky cover percentage the percentage of each pixel that has cloud, or is it the percentage of a circle with a certain radius where a certain pixel is the center? Not sure how to word it more clearly.
meteorology weather-forecasting
meteorology weather-forecasting
asked 4 hours ago
user6847056user6847056
964
964
add a comment |
add a comment |
1 Answer
1
active
oldest
votes
$begingroup$
The "sky cover" represents the percentage of sky obscured by clouds, as would be visible to an observer at the Earth's surface.
The most direct reference I could find to this quantity was in this archived presentation from the American Meteorological Society's 2014 Annual Meeting: "The United States Federal Meteorological Handbook (FMH) No. 1 defines sky cover as “the amount of the celestial dome hidden by clouds and/or obscurations”.
While I could not locate this particular handbook, there is supporting evidence in the NWS Products and Services Reference Guidebook, specifically Section 9, Tables and Abbreviations: The “sky condition” describes the average percentage of the sky that is covered by opaque clouds (not transparent to light) at a given time, followed by a tabular description of the percentile sky cover forecast interpolated to the forecast image in question:
Slight differences in terminology aside, both of these descriptions equivalently refer to the portion of sky obscured by clouds. For typical weather forecasts (as in the example in question), either would be interpreted as describing the sky as it would be visible to an observer at a given point on the Earth's surface - the visible "celestial dome". See also the definition quoted here from the 2nd edition of the American Meteorology Society's glossary, defining cloud cover as "observed from a particular location," in this case the Earth's surface.
$endgroup$
1
$begingroup$
+1. Is sky cover the same as cloud cover ? Can you clarify that in your answer ?
$endgroup$
– gansub
3 hours ago
1
$begingroup$
-en.wikipedia.org/wiki/Cloud_cover
$endgroup$
– gansub
3 hours ago
$begingroup$
Thanks, a good clarification as both refer to the same quantity but exact terminology is variable depending on the source or forecast. Added that and a reference to the definition at the top of the wikipedia article - interestingly, the AMS glossary is my starting point for questions like this but the latest edition omits the mention of any viewing location - still clearly referring to the same thing, though.
$endgroup$
– dplmmr
3 hours ago
$begingroup$
welcome. I deal with European models mostly and cloud cover is the term used.
$endgroup$
– gansub
3 hours ago
add a comment |
Your Answer
StackExchange.ifUsing("editor", function () {
return StackExchange.using("mathjaxEditing", function () {
StackExchange.MarkdownEditor.creationCallbacks.add(function (editor, postfix) {
StackExchange.mathjaxEditing.prepareWmdForMathJax(editor, postfix, [["$", "$"], ["\\(","\\)"]]);
});
});
}, "mathjax-editing");
StackExchange.ready(function() {
var channelOptions = {
tags: "".split(" "),
id: "553"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
}
});
function createEditor() {
StackExchange.prepareEditor({
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: false,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: null,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
},
noCode: true, onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
});
}
});
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fearthscience.stackexchange.com%2fquestions%2f16471%2fhow-do-i-interpret-this-sky-cover-chart%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
$begingroup$
The "sky cover" represents the percentage of sky obscured by clouds, as would be visible to an observer at the Earth's surface.
The most direct reference I could find to this quantity was in this archived presentation from the American Meteorological Society's 2014 Annual Meeting: "The United States Federal Meteorological Handbook (FMH) No. 1 defines sky cover as “the amount of the celestial dome hidden by clouds and/or obscurations”.
While I could not locate this particular handbook, there is supporting evidence in the NWS Products and Services Reference Guidebook, specifically Section 9, Tables and Abbreviations: The “sky condition” describes the average percentage of the sky that is covered by opaque clouds (not transparent to light) at a given time, followed by a tabular description of the percentile sky cover forecast interpolated to the forecast image in question:
Slight differences in terminology aside, both of these descriptions equivalently refer to the portion of sky obscured by clouds. For typical weather forecasts (as in the example in question), either would be interpreted as describing the sky as it would be visible to an observer at a given point on the Earth's surface - the visible "celestial dome". See also the definition quoted here from the 2nd edition of the American Meteorology Society's glossary, defining cloud cover as "observed from a particular location," in this case the Earth's surface.
$endgroup$
1
$begingroup$
+1. Is sky cover the same as cloud cover ? Can you clarify that in your answer ?
$endgroup$
– gansub
3 hours ago
1
$begingroup$
-en.wikipedia.org/wiki/Cloud_cover
$endgroup$
– gansub
3 hours ago
$begingroup$
Thanks, a good clarification as both refer to the same quantity but exact terminology is variable depending on the source or forecast. Added that and a reference to the definition at the top of the wikipedia article - interestingly, the AMS glossary is my starting point for questions like this but the latest edition omits the mention of any viewing location - still clearly referring to the same thing, though.
$endgroup$
– dplmmr
3 hours ago
$begingroup$
welcome. I deal with European models mostly and cloud cover is the term used.
$endgroup$
– gansub
3 hours ago
add a comment |
$begingroup$
The "sky cover" represents the percentage of sky obscured by clouds, as would be visible to an observer at the Earth's surface.
The most direct reference I could find to this quantity was in this archived presentation from the American Meteorological Society's 2014 Annual Meeting: "The United States Federal Meteorological Handbook (FMH) No. 1 defines sky cover as “the amount of the celestial dome hidden by clouds and/or obscurations”.
While I could not locate this particular handbook, there is supporting evidence in the NWS Products and Services Reference Guidebook, specifically Section 9, Tables and Abbreviations: The “sky condition” describes the average percentage of the sky that is covered by opaque clouds (not transparent to light) at a given time, followed by a tabular description of the percentile sky cover forecast interpolated to the forecast image in question:
Slight differences in terminology aside, both of these descriptions equivalently refer to the portion of sky obscured by clouds. For typical weather forecasts (as in the example in question), either would be interpreted as describing the sky as it would be visible to an observer at a given point on the Earth's surface - the visible "celestial dome". See also the definition quoted here from the 2nd edition of the American Meteorology Society's glossary, defining cloud cover as "observed from a particular location," in this case the Earth's surface.
$endgroup$
1
$begingroup$
+1. Is sky cover the same as cloud cover ? Can you clarify that in your answer ?
$endgroup$
– gansub
3 hours ago
1
$begingroup$
-en.wikipedia.org/wiki/Cloud_cover
$endgroup$
– gansub
3 hours ago
$begingroup$
Thanks, a good clarification as both refer to the same quantity but exact terminology is variable depending on the source or forecast. Added that and a reference to the definition at the top of the wikipedia article - interestingly, the AMS glossary is my starting point for questions like this but the latest edition omits the mention of any viewing location - still clearly referring to the same thing, though.
$endgroup$
– dplmmr
3 hours ago
$begingroup$
welcome. I deal with European models mostly and cloud cover is the term used.
$endgroup$
– gansub
3 hours ago
add a comment |
$begingroup$
The "sky cover" represents the percentage of sky obscured by clouds, as would be visible to an observer at the Earth's surface.
The most direct reference I could find to this quantity was in this archived presentation from the American Meteorological Society's 2014 Annual Meeting: "The United States Federal Meteorological Handbook (FMH) No. 1 defines sky cover as “the amount of the celestial dome hidden by clouds and/or obscurations”.
While I could not locate this particular handbook, there is supporting evidence in the NWS Products and Services Reference Guidebook, specifically Section 9, Tables and Abbreviations: The “sky condition” describes the average percentage of the sky that is covered by opaque clouds (not transparent to light) at a given time, followed by a tabular description of the percentile sky cover forecast interpolated to the forecast image in question:
Slight differences in terminology aside, both of these descriptions equivalently refer to the portion of sky obscured by clouds. For typical weather forecasts (as in the example in question), either would be interpreted as describing the sky as it would be visible to an observer at a given point on the Earth's surface - the visible "celestial dome". See also the definition quoted here from the 2nd edition of the American Meteorology Society's glossary, defining cloud cover as "observed from a particular location," in this case the Earth's surface.
$endgroup$
The "sky cover" represents the percentage of sky obscured by clouds, as would be visible to an observer at the Earth's surface.
The most direct reference I could find to this quantity was in this archived presentation from the American Meteorological Society's 2014 Annual Meeting: "The United States Federal Meteorological Handbook (FMH) No. 1 defines sky cover as “the amount of the celestial dome hidden by clouds and/or obscurations”.
While I could not locate this particular handbook, there is supporting evidence in the NWS Products and Services Reference Guidebook, specifically Section 9, Tables and Abbreviations: The “sky condition” describes the average percentage of the sky that is covered by opaque clouds (not transparent to light) at a given time, followed by a tabular description of the percentile sky cover forecast interpolated to the forecast image in question:
Slight differences in terminology aside, both of these descriptions equivalently refer to the portion of sky obscured by clouds. For typical weather forecasts (as in the example in question), either would be interpreted as describing the sky as it would be visible to an observer at a given point on the Earth's surface - the visible "celestial dome". See also the definition quoted here from the 2nd edition of the American Meteorology Society's glossary, defining cloud cover as "observed from a particular location," in this case the Earth's surface.
edited 3 hours ago
answered 3 hours ago
dplmmrdplmmr
708118
708118
1
$begingroup$
+1. Is sky cover the same as cloud cover ? Can you clarify that in your answer ?
$endgroup$
– gansub
3 hours ago
1
$begingroup$
-en.wikipedia.org/wiki/Cloud_cover
$endgroup$
– gansub
3 hours ago
$begingroup$
Thanks, a good clarification as both refer to the same quantity but exact terminology is variable depending on the source or forecast. Added that and a reference to the definition at the top of the wikipedia article - interestingly, the AMS glossary is my starting point for questions like this but the latest edition omits the mention of any viewing location - still clearly referring to the same thing, though.
$endgroup$
– dplmmr
3 hours ago
$begingroup$
welcome. I deal with European models mostly and cloud cover is the term used.
$endgroup$
– gansub
3 hours ago
add a comment |
1
$begingroup$
+1. Is sky cover the same as cloud cover ? Can you clarify that in your answer ?
$endgroup$
– gansub
3 hours ago
1
$begingroup$
-en.wikipedia.org/wiki/Cloud_cover
$endgroup$
– gansub
3 hours ago
$begingroup$
Thanks, a good clarification as both refer to the same quantity but exact terminology is variable depending on the source or forecast. Added that and a reference to the definition at the top of the wikipedia article - interestingly, the AMS glossary is my starting point for questions like this but the latest edition omits the mention of any viewing location - still clearly referring to the same thing, though.
$endgroup$
– dplmmr
3 hours ago
$begingroup$
welcome. I deal with European models mostly and cloud cover is the term used.
$endgroup$
– gansub
3 hours ago
1
1
$begingroup$
+1. Is sky cover the same as cloud cover ? Can you clarify that in your answer ?
$endgroup$
– gansub
3 hours ago
$begingroup$
+1. Is sky cover the same as cloud cover ? Can you clarify that in your answer ?
$endgroup$
– gansub
3 hours ago
1
1
$begingroup$
-en.wikipedia.org/wiki/Cloud_cover
$endgroup$
– gansub
3 hours ago
$begingroup$
-en.wikipedia.org/wiki/Cloud_cover
$endgroup$
– gansub
3 hours ago
$begingroup$
Thanks, a good clarification as both refer to the same quantity but exact terminology is variable depending on the source or forecast. Added that and a reference to the definition at the top of the wikipedia article - interestingly, the AMS glossary is my starting point for questions like this but the latest edition omits the mention of any viewing location - still clearly referring to the same thing, though.
$endgroup$
– dplmmr
3 hours ago
$begingroup$
Thanks, a good clarification as both refer to the same quantity but exact terminology is variable depending on the source or forecast. Added that and a reference to the definition at the top of the wikipedia article - interestingly, the AMS glossary is my starting point for questions like this but the latest edition omits the mention of any viewing location - still clearly referring to the same thing, though.
$endgroup$
– dplmmr
3 hours ago
$begingroup$
welcome. I deal with European models mostly and cloud cover is the term used.
$endgroup$
– gansub
3 hours ago
$begingroup$
welcome. I deal with European models mostly and cloud cover is the term used.
$endgroup$
– gansub
3 hours ago
add a comment |
Thanks for contributing an answer to Earth Science Stack Exchange!
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
Use MathJax to format equations. MathJax reference.
To learn more, see our tips on writing great answers.
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fearthscience.stackexchange.com%2fquestions%2f16471%2fhow-do-i-interpret-this-sky-cover-chart%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown