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January 27, 2006

Put this on your calendar

One of this region's most persistent amateur weather prognosticators has gone out on a scientific limb and predicted a significant winter storm for the period of Feb. 14-16.

Jim Hughes has been tinkering with weather forecasting for the region for many years, investigating what he believes are direct links between patterns he's observed in very distant events - including solar storms and "space weather" - and subsequent weather events in the Washington D.C. area.

He's had no formal training in space physics or meteorology. Nor has he ever been able to publish any of his data in a scientific journal. So he's had a hard time persuading the professionals in those fields that his theories can actually predict the weather. But he's worked hard at it for many years, taking advantage of the Internet and the wealth of scientific and observational data available now online to everyone. He's educated himself about phenomena most of us have never heard of. And over the years he's had some forecasting hits, as well as some misses.

Anyway, yesterday I received the following email from Jim, drawing a connection between past warming events at the North Pole, and "wild weather" across the country. He says we're setting up for a repeat of that pattern. I decided that the WeatherBlog finally gives us a forum where I could put him on record with one of his forecasts, and let him take the credit if the storm pans out, or the egg-in-the-face if it doesn't.

Here's what he has to say:

"An extreme stratospheric warming has been occurring at the North Pole during the past few days. Only four days have been warmer since December 1978. These were two, two day periods, in both March 1984 and February 1989.

"A warming like this will usually mean that both the Arctic Oscillation (AO), and North Atlantic Oscillation (NAO), are going to turn negative down the road a ways. These  negative phases mean that colder air is headed for the Northeast  and Mid Atlantic .

"Extreme weather patterns should follow this warming, approximately 23 days later, as usual. The jet stream will be amplified and this forecasting variable, along with several others, strongly suggests to me that the metropolitan area, in and around Washington DC, will be experiencing accumulating snowfall between February 14th-16th. 

"I have been using this methodology for about a decade now. So this is not new to me. The strength of the warming can vary of course, just like the atmosphere's reaction can.

"I am definitely not relying on just these two prior extreme warming events to come up with this forecast, but they do give it some weight in my opinion.

"Here are some tidbits about the weather events back in March 1984 and 1989:

"BWI in Baltimore saw temperatures of 80/43 on March 18, 1989 but they dropped drastically on the 19th (to) 44/31. The normal is 55/34.

"Marquette, Minn. recorded a low temperature of -11 degrees below average on the 19th. Snowfall totals as high as 18 inches were recorded in some parts of the country. Parts of West Virginia received eight inches.

"The amplification of the jet stream was just as severe back in March 1984.  Brownsville, Tex. recorded a high temperature of 106 degrees and Cotulla Texas set a state record at the time for March, with a 108-degree temperature. The Carolinas were hit by severe weather on the 18th and 22 tornadoes were reported there. A severe ice storm occurred in other parts of the country.

"So it looks like mid- February is going to be very interesting on the weather front."

Thanks Jim. We'll see if you're right.

Posted by Frank Roylance at 12:24 PM | | Comments (2) | TrackBacks (2)
Categories: Winter weather
        

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Comments

support from Woody over at www.noaa.gov

FOR THOSE WHO LIKE IT COLD... THERE MAY BE HOPE. THE NAO INDEX HAS
BECOME SLIGHTLY NEGATIVE IN THE PAST FEW DAYS AND THE ENSEMBLE MEAN
NAO FCST DOES SHOW RATHER TIGHT CLUSTERING IN THE NEGATIVE THROUGH
ABOUT THE FIRST HALF OF FEB. ALSO... THE CPC MED RANGE TEMP OUTLOOK
IS SHOWING INCREASING CHANCES OF BELOW NORMAL TEMPS BEGINNING FEB
6-8.

Thanks Frank. We will see what happens. I am very confident that the jet stream is going to respond to this warming in the stratosphere and it will definitely get colder.

Many long range forecasters are now jumping on this bandwagon and they are forecasting this colder weather pattern change.

I just read one person mention that Accuweather is now forecasting snow for the 14th.

Many of your readers may be interested in something else that I wrote a few months back in regards to the stratospheric temperature relationship to other climate and weather patterns.

This discussion dealt with why the AMO (Atlantic Multidecadal Oscillation ) switched to a favorable phase for increased hurricane activty around 1995.

I believe that I make a fairly strong case for this relationship. I would be interested in what some of your readers think. Or even you.

http://www.storm2k.org/phpbb2/viewtopic.php?t=78570
Jim Hughes

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About Frank Roylance
This site is the Maryland Weather archive. The current Maryland Weather blog can be found here.
Frank Roylance is a reporter for The Baltimore Sun. He came to Baltimore from New Bedford, Mass. in 1980 to join the old Evening Sun. He moved to the morning Sun when the papers merged in 1992, and has spent most of his time since covering science, including astronomy and the weather. One of The Baltimore Sun's first online Web logs, the Weather Blog debuted in October 2004. In June 2006 Frank also began writing comments on local weather and stargazing for The Baltimore Sun's print Weather Page. Frank also answers readers’ weather queries for the newspaper and the blog. Frank Roylance retired in October 2011. Maryland Weather is now being updated by members of The Baltimore Sun staff
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