Here’s a nice little example of how the weather computing models start to go awry fast when a little flummoxed when little DELIBERATE errors are input into them as they start their northern hemisphere data crunch (below, from the global data ingested at 5 PM AST yesterday). Us folks here in Arizona and those in… Continue reading Arizona, center of northern hemisphere uncertainty; weird clouds today?
Category: Spaghetti plots
Well hung, that virga yesterday…
“Hanging virga” materialized yesterday, starting from a cluster of late morning modest, but very cold, Cumulus clouds that transitioned to soft and small Cumulonimbus clouds as they approached the northern parts of Catalina, Charoleau Gap and Oracle yesterday. How cold were those clouds? Bases were at 10,000 feet, just above Mt. Sara Lemmon, at about… Continue reading Well hung, that virga yesterday…
Into the cold
Today, as everyone knows, will be the last pleasant day for quite awhile, so we’d better get out and enjoy it if you can, maybe call in sick. Likely to be a couple of AZ low temperature records set over the next week. The skies will be great today, as they always are with some… Continue reading Into the cold
Upper low passing to south; clouds to wrap around overhead from the southeast and east this evening
Backdoor rain? Looks like any chance of rain will happen later this afternoon through overnight as mainly mid-level clouds twist around our low from the east. That low is now over Yuma, AZ, and the center will pass to the south of us tonight. We don’t see that happen too often. Here’s a nice… Continue reading Upper low passing to south; clouds to wrap around overhead from the southeast and east this evening
Catalina gets 0.48 inches in brief frontal passage
(Note written on Dec 22nd! Something happened to the title I gave this previously, so its been titled now.) Didn’t seem possible that such a fast moving storm could drop this much! Neither did the mighty Beowulf Cluster at the U of AZ think so much would fall here. But there it is, a… Continue reading Catalina gets 0.48 inches in brief frontal passage
Rain totals and some cloud shots and a bright rainbow
Pima County has a rolling archive of 24 h rainfall. Below under “Table” are those totals as of yesterday, at 4 PM AST, probably that 24 h period capturing the full storm. Here in Catalina, with another 0.21 inches after 5 AM, our 24 h total ended up at 0.96 inches; 0.98 inches at Sutherland… Continue reading Rain totals and some cloud shots and a bright rainbow
The nine panels of rain; the regime change is almost here
It doesn’t get any better for a desert in southeast Arizona than this; a model run with NINE panels of rain, including rain on Christmas morning, and here they are from last night’s 5 PM AST global data, our best computers in action. Remember the bad old days just a few weeks ago when no rain… Continue reading The nine panels of rain; the regime change is almost here
Let’s look at December and the beginning of the second Catalina rain season
A day of pretty Cirrus and a nice sunset yesterday: Now for some more of that Catalina climo, featuring December (Most of these data below are due to the folks at Our Garden right here in Catalinaland just off Columbus._ First, the rainfall frequency chart for December. Not… Continue reading Let’s look at December and the beginning of the second Catalina rain season
Some distant Catalina rain still showing up in SOME model runs
OK, there are a lot of graphics and discussion today, much of it unnecessary as usual, but there it is. We’ll begin with yesterday….not today. Yesterday morning’s WRF-GOOFUS run once again had rain in Arizona/Catalina area. Was heartened since the prior 24 h’s predicted rain had disappeared in the three runs after that. Here’s what… Continue reading Some distant Catalina rain still showing up in SOME model runs
New tee shirt offering; distant weather to write about
Some 8 days ago a spaghetti plot indicated with confidence that a “warm in the West”, “cool in the East” pattern would develop. Well it has materialized. Thanks to Hamweather, this chart shows the records set with that pattern so far. They’re not so numerous, but the forecast of a strong trough off the West Coast… Continue reading New tee shirt offering; distant weather to write about