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Perhaps I posted too soon about the 29F record - it's already been broken . The significant weather alert has been changed to a severe thunderstorm warning:
And look at this - a Severe Thunderstorm Warning, a Significant Weather Advisory, and a Winter Weather Advisory all in effect simultaneously. That has to be a first. Plus the coupling of 20F, Snow and Wind, and "severe storms are close to your location":
Last edited by Patricius Maximus; 04-09-2013 at 02:28 PM..
Another thing I'm noticing is that the Denver radar is showing different components of the snow moving in opposite directions simultaneously, i.e. some of the precip moving north and some of the precip moving south, while overlapping each other. This is probably due to the very high levels of wind shear - surface winds are howling out of the north, and 500 mb winds are howling out of the south. You can see a map of the winds below:
The surface system is complex, composed of three low pressure centers in Colorado, Texas, and Iowa (respectively), but the main driver of the whole thing is a big upper-level disturbance which is currently centered just south of the Four Corners. As you can see from the southerly flow that is dominating the East, as well as the big-time storminess in the West, this storm has joined the exclusive club of storms that affect the whole country simultaneously (excluding Alaska, Hawaii, and the territories).
By the way, the heights are currently at 552 for Denver and 548 at the center of the storm in Arizona. Denver's currently at 15F, so if Owen is viewing this post this is proof positive that 528 or even 540 heights are not required for snow in the States. Yes, I know that Denver is at high elevation, but it's not quite that high up.
Another thing I'm noticing is that the Denver radar is showing different components of the snow moving in opposite directions simultaneously, i.e. some of the precip moving north and some of the precip moving south, while overlapping each other. This is probably due to the very high levels of wind shear - surface winds are howling out of the north, and 500 mb winds are howling out of the south. You can see a map of the winds below:
The surface system is complex, composed of three low pressure centers in Colorado, Texas, and Iowa (respectively), but the main driver of the whole thing is a big upper-level disturbance which is currently centered just south of the Four Corners. As you can see from the southerly flow that is dominating the East, as well as the big-time storminess in the West, this storm has joined the exclusive club of storms that affect the whole country simultaneously (excluding Alaska, Hawaii, and the territories).
By the way, the heights are currently at 552 for Denver and 548 at the center of the storm in Arizona. Denver's currently at 15F, so if Owen is viewing this post this is proof positive that 528 or even 540 heights are not required for snow in the States. Yes, I know that Denver is at high elevation, but it's not quite that high up.
Fascinating. Our summer heights are often below that.
I only see a few Wunderground stations that are reading upper 80's - from the map I'm looking at 84F seems to be a good average for the current temperature in New Jersey. However, I agree with Infamous - a few locations are probably nearing 90F right now, though they probably won't get to 90F, seeing as the diurnal heating is almost over.
Texas enters temperatures into the 100s! Here's one for you. This morning we saw Nebraska one end in the 60s, the other in the teens. How about Texas? SouthWest TX in the 100s, Northern TX in the 30s. http://www.srh.noaa.gov/crp/?n=observations
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. The significant weather alert has been changed to a severe thunderstorm warning:
