Which set of forcast icons should I be using with weather station model 77008

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Weather station model 77008
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James Marshall

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Posted 5 months ago

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AcuRite Rachell, Employee

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Hello James,
This is not a valid model number in our system. Can you please provide a picture of your display? Thank you.
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James Marshall

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Thanks for your reply. I bought the weather station in the uk so I wonder if it was made for European market . It looks like model number 00508 as shown on your website thus I've been using icon version C. The problem I have is that some icons seem to have parts missing especially the partly cloudy- chance of Rain icon. Also despite have snow recently no icon mentioning snow has appeared on the display. The station is well past its 33 day learning period.
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AcuRite Jennifer

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Hello James,

You are correct. You would use version C in the forecasting icons. I have attached a link to the version. https://www.acurite.com/learn/glossary/weather-forecast-c When you say that it's missing parts what do you mean?
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James Marshall

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Thanks for your reply.
Perhaps I wished the wrong word, corresponding would have been better. As shown in the photo , the image ,doesn't match exactly any of the icons in version C. I'm guessing it may be mostly cloudy and windy. Also the storm icon will appear even when the pressure is rising. I thought the pressure would have to drop 0.18 in 4 hours for the icon to appear. Puzzled.
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AcuRite Rachell, Employee

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Hello James,
I can see the display is in learning mode at this time. Did you restart it?  The icon you see here is a combination of the icons listed in Version C. All the way at the bottom it indicates the wind marks to the left of the cloud means "Any Change in Barometric pressure > 0.2 in 3 hours". This can cause it to be windy.  The cloud icon with sun peaking out indicates that it is going to be mostly cloudy in your location. Because you are in the 14-33 day learning mode again, you can show inaccurate forecasting as the unit is learning your altitude currently to provide accurate barometric pressure and forecasting.  Please let us know if you have any questions. Thank you.
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James Marshall

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Thanks again for your reply. The reason we are back in learning mode is I calibrated the pressure and the unit went back into learning mode.
In my last post I mentioned the storm icon. It's seems to appear regardless of wether the pressure has fallen 0.18 inches in 4 hours and appears when the pressure is rising.This was happening when the initial 33 day learning period was well past. I understand the significance fo the wind symbol but again it will appear despite the pressure not dropping 0.2 in 3 hours.
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AcuRite Rachell, Employee

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Hello James,

If your future forecast is predicting wind, you will also see the icon. I apologize for not being more clear in my previous response. Please let us know if you have any other questions. Thank you.
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James Marshall

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Hello Rachel
With all due respect you don't seem to be answering my question concerning the storm forecast.
As I said in my last post the flashing icons appears despite the pressure not falling 0.18 inches in 4 hours as stated in the version c forecast icons.
I understand the significance of the wind symbol.
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George D. Nincehelser

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My interpretation is that the unit takes the highest pressure in the last 4 hours and compares it to the lowest pressure since that high was recorded.  If the difference is 0.18" or more, then the flashing icon in triggered.

This means that your current pressure might be rising, but somewhere in the last 4 hours there was still a drop of 0.18" more more, indicating that serious atmospheric instability has been going on.

This matches the behavior of many severe storms.  Greatly simplified, there is a often a large initial drop in pressure followed by a rising.  The rising doesn't mean the storm has gone away, and it's possible that the pressure could still drop again, so the flashing remains on to tell you to be on the alert until that big pressure drop falls out the 4-hour window.

It would really help to look at some 4-hour pressure graphs that represent a severe storm system rolling through, but I don't have any handy.
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James Marshall

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Thanks George for your comment.
Interesting explanation and I will definitely look into it. I have access to 4 hour pressure graphs so when I have time ,I'll investigate.
We get a lot of low pressure systems coming in from the Atlantic here in the U K . The difference in pressure from high to low can be 32 millibars in a day.
It would be interesting to hear from other users of acurite weather stations in the U K . If they experience the same storm forcast appearing regularly.
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AcuRite Rachell, Employee

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Hello James,
I apologize for any confusion and misunderstanding. Your location has a lot of ups and down in barometric pressure which will cause the display to trigger the storm alert. The pressure may have gone back up however, it will not trigger on the display to turn off until the four hour window has surpassed.