Wednesday, October 29, 2008
MWN StormView Interactive Radar
The next big addition to MWN will be interactive radar - where YOU have control over what you see. Zoom in to your area, add storm tracks and severe weather warnings, overlay radar-based severe weather indicators, see how much rain has fallen across the area, even see where winter precip is falling!
"All the Weather You Need for Memphis and the Mid-South" - MemphisWeather.net, soon with StormView Interactive Radar
As we approach Halloween, temps are warming up as Canadian high pressure is replaced by a warmer airmass. Tonight's lows may still reach the upper 30s in the suburbs, but that should be the last 30 degree readings until at least the middle of next week. Highs are going to be reaching into the lower 70s for the weekend and trick-or-treat weather looks very pleasant - temps in the 60s with a few clouds.
Saturday, October 25, 2008
Then, the coldest air of the season builds in on high pressure originating in Canada for Monday and Tuesday. Monday will be the coldest daytime temps as the mercury tops out in the upper 50s and a brisk northwest wind makes it feel even colder. Morning lows Tuesday and Wednesday will be well into the 30s with a widespread frost and perhaps a couple hours of near or a degree or two below freezing temps each morning. Fortunately, the weather moderates by mid-late week and trick-or-treating weather on Friday night appears to be very pleasant with temps in the 60s under mainly clear skies.
Monday, October 20, 2008
That's when things will change. An upper-level low pressure system will develop at the base (southern end) of a trough now over the Pacific Northwest. By mid-week, that low will strengthen over the Plains and move slowly southeast towards the Mid-Mississippi Valley. The closed low is forecast to affect our region Thursday and Friday (see the image below valid Friday evening and note the concentric black circles and yellow/orange shading over the center of the U.S.). This low will mean plenty of clouds, rain, possibly a few thundershowers, and cooler weather for Thursday and Friday. By Saturday it will pick up speed moving east and we should again see high pressure return for at least the latter half of the weekend and early next week.
The extended range guidance is indicating a more active pattern for late October-early November with below normal temps.
Tuesday, October 14, 2008
Wednesday, October 8, 2008
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MEMPHIS TN
1148 AM CDT WED OCT 8 2008
...ISOLATED FUNNEL CLOUDS REPORTED IN HARDEMAN COUNTY IN WEST TENNESSEE...
AT 1126 AM CDT SPOTTERS REPORTED FUNNEL CLOUDS 1 MILE NORTH OF CLOVERPORT IN HARDEMAN COUNTY TENNESSEE. THESE FUNNEL CLOUDS ARE ISOLATED AND NOT EXPECTED TO TOUCH DOWN. HOWEVER IF THEY DO TOUCH DOWN...WINDS ARE EXPECTED TO BE 50 MPH OR LESS.
THE POTENTIAL FOR THESE SHORT LIVED FUNNEL CLOUDS ARE POSSIBLE THROUGH THIS AFTERNOON ACROSS NORTH MISSISSIPPI AND ADJACENT WEST TENNESSEE. THE NATIONAL WEATHER SERVICE IN MEMPHIS IS MONITORING THE SITUATION CLOSELY....BUT THESE FUNNEL CLOUDS ARE NOT OF THE VARIETY THAT IS ASSOCIATED WITH ORGANIZED SEVERE WEATHER IN THE MIDSOUTH. IF FUNNEL CLOUDS TOUCH DOWN OR IF A TORNADO WARNING IS ISSUED IN YOUR AREA...THEN SEEK SHELTER IMMEDIATELY.
Tuesday, October 7, 2008
We've now had our break for the day and more storms have fired as a fairly slow-moving, but strong cold front approaches from the west. Current radar indicates a developing batch of storms moving through the metro area and extending south along the MS River. Very heavy rain and likely some small hail is falling from some of these storms. This pattern will continue into the evening hours, before becoming mostly scattered showers overnight. A low chance of rain still exists tomorrow as the upper level trough follows behind the front. At the least, cloud cover will keep temps in the 70s throughout the day. A clearing pattern will commence in the wake of the trough, with partly cloudy skies and warming temps expected Thursday through the weekend.
As for me, I'll be enjoying a warm and dry weekend on the beach with family! Orange Beach, AL is our destination for a fall break excursion to the Gulf Coast. Wish you were me! ;-)
Sunday, October 5, 2008
This week, we will have a fairly significant trough move through mid week. Though it's origins in the Pacific mean there is not a lot of cool air behind it, it will pick up on the increasing moisture and bring us our best chance of rain in probably several weeks. Rain and some t'storms will be moving in from the west Tuesday afternoon and evening and it could be fairly wet through Wednesday, before tapering off with the passage of a "cool" front Wednesday night. Conditions look to be dry and warm on the backside of the trough for the end of the week and into the Fall Break weekend - for those who are tied to the local school's calendars.
I'd also like to point out that this is my 100th blog posting since starting several months ago. Thanks to all of my readers for their comments, questions and support! Also don't forget to check out MWN Mobile when you get a chance at pda.MemphisWeather.net!
Saturday, October 4, 2008
Well, the time has come to officially unveil the MOBILE version of MemphisWeather.net!! As of 5:10pm on 10/4/08, MWN Mobile is online! To access the site from your PDA or other wireless device, go to http://pda.memphisweather.net. Initial features include current conditions from WXLIVE! in Bartlett updated every 5 minutes, Memphis radar (which is zoomable and can be looped thanks to the good folks at Weather Underground), and a fast forecast for anywhere in the world! Soon, I'll be adding the most accurate forecast for Memphis - the MWN Forecast - to the mobile site, as well as many of the other features available on the original.
Now you never have to wonder what it's like back home when you're away on vacation or business trip! You can get the latest conditions from Bartlett anywhere, anytime using the power of the mobile web. Be sure to let your friends, co-workers, family, classmates, and even total strangers know about the new MWN Mobile @ pda.MemphisWeather.net!
Thursday, October 2, 2008
Make sure you tell all your "friends on the go" that they will be able to get the latest weather info from MWN on their Blackberrys, Treos, PDAs, or other WAP-enabled device very soon!
Wednesday, October 1, 2008
The trough will continue to affect our weather for the next 36 hours or so, until the ridge to the west scoots east and lands overhead. Ridges aloft typically mean warmer weather and dry conditions. So, the forecast calls for warmer temps (back into the 80s) this weekend as the ridge moves in, with no rain in store. By the middle of next week, the next trough, shown on the map over the eastern Pacific, will move in and bring a chance for precipitation. Now you know how upper-level systems can affect our weather down here on the ground!
I'm talking about the Water Year! Many of you are scratching your heads right now thinking "what is he talking about?" With many thanks to Nolan Doesken at Colorado State University (he of CoCoRaHS fame), here is his explanation...
The water year is the best approximation of the consecutive 12 months thatn span the "water storage/water usage" hydrological cycle. The water year cycle is particularly obvious in the Rocky Mountains and western U.S. where snow begins to accumulate at high elevations in October and doesn’t melt until the next spring and summer.
Another way to think of the "Water Year" is the resting/replenishing season followed by the growing, harvesting and water-consuming season. As October begins, the summer growing season comes to an end. With the coming of colder weather, evapotranspiration shuts down. In the mountains and the northern states, snows begin to fall. For much of the country and especially the northern states, the months of October through March are months where precipitation from the sky exceeds evaporation from the ground. This means that soil moisture and ground water can recharge. Runoff that reaches the rivers and streams may increase (except in cold areas where the water remains frozen). Then, when next spring comes the temperatures rise again, plants come back to life, snow melts, rivers surge. Then evapotranspiration increases as plants begin to grow. By the summer months, evapotranspiration will once again exceed precipitation for most of the country. This means that soils dry out, river flow may decrease, and little or no water recharges aquifers. Drought becomes especially problematic when precipitation falls short of expectations during the spring and summer months. By next September, crops will be harvested, temperatures will again cool, and yet another water year will come to an end.
So there you go! Happy New (Water) Year!