I often wonder why different sources of local weather reports vary so
much. I check Weather Underground and the Weather Channel on the web. For
example, the other night WU predicted 29, WC 40. I often see such
differences. Also, one will say clear, the other cloudy. Always
differences. Sometimes one will be close, sometimes the other. The local
radio stations predict yet other different weather. sigh

Evidently weather prediction is far from an exact science.



--
"When you choose the lesser of two evils, always
remember that it is still an evil." - Max Lerner

On Dec 30, 2:03 pm, Ken wrote:

I often wonder why different sources of local weather reports vary so much.

I check Weather Underground and the Weather Channel on the web.
For example, the other night WU predicted 29, WC 40. I often see such
differences. Also, one will say clear, the other cloudy. Always
differences.

Sometimes one will be close, sometimes the other. The local
radio stations predict yet other different weather.

Evidently weather prediction is far from an exact science.

It never can be while the best weather models require human input as a
form of governor. The input comes from an experienced meteorologist
but it is still weather-lore.

Without that weather-lore, all weather models will run off like
headless chickens.

Which indicates the answer to your question. What corrections do the
relative predictions normally get? Radio and TV presenters often add
their own interpretation so depending on their location and
experience, they will tend to be most accurate if they live in similar
regions to you.

Another reason that models go awry and can not be corrected by human
intervention is when there are earthquakes due. All models tend to
disagree and some will actually break down when large (or local?)
quakes are due.

Weatherlawyer wrote in
:

On Dec 30, 2:03 pm, Ken wrote:

I often wonder why different sources of local weather reports vary so
much.

I check Weather Underground and the Weather Channel on the web.
For example, the other night WU predicted 29, WC 40. I often see such
differences. Also, one will say clear, the other cloudy. Always
differences.

Sometimes one will be close, sometimes the other. The local
radio stations predict yet other different weather.

Evidently weather prediction is far from an exact science.

It never can be while the best weather models require human input as a
form of governor. The input comes from an experienced meteorologist
but it is still weather-lore.

Without that weather-lore, all weather models will run off like
headless chickens.

Today one report source says 25 - 35 MPH winds, the other 5 - 10 MPH.
sigh


Which indicates the answer to your question. What corrections do the
relative predictions normally get?

None I am aware of. I don't get on line after noon and the local radio
gets its weather somewhere else.

Radio and TV presenters often add
their own interpretation so depending on their location and
experience, they will tend to be most accurate if they live in similar
regions to you.

The local weather reports during the evening news (National Public Radio)
are just read from copy - the reader knows nothing about weather. I never
watch TV.

Another reason that models go awry and can not be corrected by human
intervention is when there are earthquakes due. All models tend to
disagree and some will actually break down when large (or local?)
quakes are due.

That's something that bothers me. We used to get a trembler at least
every year, sometimes several. I can't remember one now for well over ten
years. I suspect the next one will be a beaut! I live in SW Arizona.




--
"When you choose the lesser of two evils, always
remember that it is still an evil." - Max Lerner