Wednesday, February 28, 2007
2/28 - 3/4
Today – Partly cloudy, High 41.
Tonight – Increasing Cloudiness, chance of showers toward daybreak, Low 32.
Tomorrow – Rain, heavy at times, cloudy, High 52.
Tomorrow Night – Rain and Showers around, cloudy, Low 38.
Friday – Cloudy a chance of rain, High 45.
Friday Night – Cloudy, a chance of a shower, Low 28.
Saturday – Cloudy, a chance of a shower or flurries, High 37.
Saturday Night – Cloudy, a chance of flurries, Low 22.
Sunday – Cloudy, a chance of flurries, High 32.
Sunday Night – Cloudy, a chance of flurries, Low 22.
Note: A chance of Flooding is beginning to show up on a few model sites for tomorrow night into Friday because of the rapid snow melting and the amount of rain we are expected to receive tomorrow into Friday. I will probably post a little bit later as more is understood about this situation.
Tuesday, February 27, 2007
forecast 2/27 - 3/2
Today - Cloudy with a chance of a shower or snow shower, High 38.
Tonight - Mostly Cloudy, Low 25.
Tomorrow - Partly cloudy, High 41.
Tomorrow Night - Becoming mostly cloudy, increasing chances of rain and snow showers after midnight, Low 33.
Thursday - Rain, heavy at times, Cloudy, High 52.
Thursday Night - Showers likely, Cloudy, Low 46.
Friday - Cloudy with a chance of showers, High 46.
Friday Night - Cloudy, a chance of snow showers or rain showers, Low 24.
Saturday - Cloudy, High 34.
Saturday Night - Cloudy, a chance of snow showers, Low 21.
Monday, February 26, 2007
Five day 2/26 - 3/2

Source: http://www.city-data.com/
people are lucky to be alive. An estimated F-2 tornado packing winds between 158 - 207 mph with a half of a mile wide path of destruction, only 27 people were injured and no one lost their life. In total 18 confirmed tornadoes touchdowns on Saturday.
For the full storm report click here.
But anyhow here is how we are looking here in the Pittsburgh area for the next few days.
Today - Cloudy, with a chance of a snow flurries or rain shower. High 38.
Tonight - Cloudy, with a chance of flurries. Low 27.
Tuesday - Cloudy, with a chance of snow shower or rain shower. High 37.
Tuesday Night - Decreasing cloudiness, flurries likely North and East of the City. Low 24.
Wednesday - Partly Sunny. North of I-80 a chance of flurries and Showers. High 40.
Wednesday Night - Partly Cloudy. Low 27.
Thursday - Increasing cloudiness, a chance of showers. High 52
Thursday Night - Rain developing, could be heavy at times, Cloudy. Low 37.
Friday- Showers likely. High 45.
Friday Night - Rain and snow mix. Low 31.
Saturday, February 24, 2007
Sunday's Dangerous weather
So what is happening right now?
Over the Midwest a blizzard is occurring and down to the south severe weather that is producing tornadoes. The storms prediction center, (the national weather agency that is in charge of issuing the severe weather warnings and watches) has issued one of the most important advisory that they can issue. A PDS, which is a Particularly Dangerous Situation watch box. http://www.spc.noaa.gov/products/watch/ww0030.html

Now this means that severe weather is very likely and could pop up anywhere in that watch box because the atmosphere is so unstable.
The other area that is being affected by severe weather is the Midwest where numerous blizzard warning are in effect. A blizzard is defined by the national weather service as a storm with 20 degrees or lower temps. Sustained winds over 35mph, gust higher then that, and four inches of snow or higher over 12 hours forecasted.

Source: Weather.com
The whole area of severe weather will move to the east tomorrow and the storm will intensity rapidly overnight tonight.
The National weather service here in Pittsburgh has already issued a winter storm watch for the storm and will update it from time to time thought the day and into tomorrow. Travel around the area will be dangerous late tonight into tomorrow.
Wednesday, February 14, 2007
overnight and forecast
Today - Snow showers, maybe another 1". Windy. Winds North 10 - 20 . High 20.
Tonight -Snow showers tapering to flurries. Winds Northwest 15 -20 gusting to 30.
Windchill vaules - 10 to -25
Tomorrow - Mostly Cloudy, windy. Winds west 10 -15 gusting to 25. High 15.
Windchill vaules - 5 to -15
Tomorrow Night - Mostly cloudy, windy. Winds west 10 - 15 gusting to 25. Low 8.
Windchill vaules - 10 to -20
Tuesday, February 13, 2007
Currently 7 pm
here in the southern half of Allegheny County. The mayor of Pittsburgh has even asked people to stay home if possible. The city council is delayed at least an hour on Wednesday morning.
The freezing rain is primary over Allegheny County and south. Significant ice is occurring which could, very well mean, that a people around the regions could lose power because of the ice weight on the lines and trees that could fall on them.
To the north of Allegheny County heavy snowfall will happen and is already occurring.

The second half of the system will be coming over the next few hours; this second half will be when numerous things happen.
First the transition of the mixed precipitation changes back to snow, heavy at time.
Second when the Low off the eastern seaboard takes over and we begin to see wrap around precipitation. I the 1 am forecast surface map, pay attention to that low over South Carolina.

We see that on the next forecasted surface map at 1 pm the low off the coast takes the primary role.

1 pm update
From the weather channel:

This will just get worst at the airports. Around the Pittsburgh area we will again see that change over to sleet by 5 pm. This is the absoule worst time that it could happen. Rush hour will be in full swing and this is horrible news for anyone around the region. If there is over 1/2" of sleetfall then a sleet warning will be posted this is very rare but could happen today into tonight.
So what is sleet?
Sleet is snow that partial has melted in the mid levels of the atmophere. The graphic clearly shows that the snow melts in that shallow warm layer.
From: http://ww2010.atmos.uiuc.edu/(Gl)/guides/mtr/cld/prcp/zr/sleet.rxml
Again the snow heavy at times will change over to snow then will change back later.
4 Am update
...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM EST WEDNESDAY...
A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM EST WEDNESDAY.
A WINTER STORM WARNING REMAINS IN EFFECT FOR TUESDAY AND WEDNESDAY.
AN ADVANCING LOW PRESSURE SYSTEM WILL SPREAD SNOW ACROSS THE AREA THIS MORNING AND CONTINUING THROUGH TUESDAY NIGHT. THIS SNOW WILL MIX WITH SLEET BY LATE AFTERNOON AND CONTINUE INTO EARLY WEDNESDAY MORNING. SOME ISOLATED FREEZING RAIN IS ALSO POSSIBLE.
SNOW MAY BE HEAVY AT TIMES TODAY AND TONIGHT. 4 TO 8 INCHES OF SNOW COULD ACCUMULATE ACROSS THE SOUTHERN PORTIONS OF THE AREA BY WEDNESDAY AFTERNOON...WITH 6 TO 10 INCHES POSSIBLE TO THE NORTH. THE HEAVIER AMOUNTS ARE EXPECTED OVER AREAS TO THE NORTH OF PITTSBURGH.IN ADDITION...A PERIOD OF SLEET IS LIKELY ON TUESDAY EVENING...WITH FREEZING RAIN POSSIBLE FROM PITTSBURGH ON SOUTH.
WEDNESDAY WILL BE QUITE WINDY WITH FALLING TEMPERATURES.
A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW...SLEET...AND ICE ARE EXPECTED. THIS WILL MAKE TRAVEL VERY HAZARDOUS. POWER OUTAGES ARE POSSIBLE IF A LARGE AMOUNT OF ICE ACCUMULATES ON POWER LINES.
TRAVEL ON TUESDAY THROUGH WEDNESDAY MORNING IS DISCOURAGED. STAY TUNED TO NOAA WEATHER RADIO OR OTHER LOCAL MEDIA FOR UPDATES ON THIS INCOMING WINTER STORM.
The National Weather Service in Pittsburgh doesn't often use this harsh of language. But I agree with them that it is critical that driving is discouraged.
Currently:
The radar is showing that Snow has began to push into the region. Note:In the south you will notice a strong line of severe storms are sparking some fears of tornadic activity in the great New Orleans area.
The current surface map is showing the Low pressure system responsible for all this activity is still centered over Arkansas.
By 1 pm tomorrow the low moves towards the Northeast and heavy snow continues.
By the evening rush hour we will be looking at Snow, Sleet, and Freezing Rain, I think we will only see this for a few hours eventually changing back over to heavy snow. The primary factor are the temperatures both at the surface and the mid levels of the atmosphere as to how much snow does melt and change in the mid levels to sleet and freezing rain. (Rain will come down but back the surface is just so cold it freezing very quickly) Depending on the Freezing rain and sleet combined with the winds on Wednesday morning we could be looking at quite a few power outages. I will try to update before 1 pm.
Monday, February 12, 2007
Weather update 3 pm
The National weather service has posted some new information on this storm system in the form of a Winter Storm Warning:
...WINTER STORM WARNING IN EFFECT FROM 5 AM TUESDAY TO 6 PM ESTWEDNESDAY... THE NATIONAL WEATHER SERVICE IN PITTSBURGH HAS ISSUED A WINTERSTORM WARNING...WHICH IS IN EFFECT FROM 5 AM TUESDAY TO 6 PM ESTWEDNESDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. A WINTER STORM IS APPROACHING THE AREA FROM THE SOUTH AND WILLSPREAD SNOW INTO THE AREA DURING THE EARLY MORNING HOURS ONTUESDAY. EXPECT THE SNOW TO START AROUND THE MORGANTOWN AND ZANESVILLE AREASAROUND BETWEEN 300 AND 500 AM...THEN IN THE PITTSBURGH...WHEELINGAND NEW PHILADELPHIA AREAS BETWEEN 500 AM AND 700 AM AND SPREADNORTHWARD TO PLACES LIKE GROVE CITY...AND PUNXSUTAWNEY BEFORE900 AM TUESDAY MORNING. IN AREAS NORTH OF INTERSTATE 80...THE PRECIPITATION IS EXPECTEDTO REMAIN ALL SNOW WHERE 6 TO 12 INCHES OF SNOW COULD ACCUMULATEBY WEDNESDAY MORNING. THIS WOULD INCLUDE PLACES LIKE DUBOIS...OILCITY AND CLARION. IN NORTHERN WEST VIRGINIA AND SOUTH CENTRAL OHIO...IN PLACES LIKEMORGANTOWN AND ZANESVILLE...THE SNOW IS EXPECTED TO CHANGE TO SLEETAND FREEZING RAIN DURING TUESDAY AFTERNOON. 2 TO 4 INCHES COULDACCUMULATE BEFORE CHANGING TO SLEET AND FREEZING RAIN. APROLONGED PERIOD OF SLEET OR FREEZING RAIN IS EXPECTED TUESDAYNIGHT. MORE THAN ONE HALF INCH OF SLEET OR ONE QUARTER INCH OFICE ACCUMULATION IS POSSIBLE. IN THE HIGHER ELEVATIONS OF THE CHESTNUT AND LAUREL RIDGES OFWESTMORELAND AND FAYETTE COUNTIES IN PENNSYLVANIA...4 TO 8 INCHESOF SNOW COULD ACCUMULATE BEFORE MIXING WITH SLEET AND FREEZINGRAIN DURING TUESDAY EVENING. IN GARRETT COUNTY MARYLAND AND TUCKER AND PRESTON COUNTIES OFWEST VIRGINIA... 4 TO 6 INCHES OF SNOW COULD ACCUMULATE BEFOREMIXING WITH SLEET AND POSSIBLY FREEZING RAIN DURING LATE TUESDAYAFTERNOON. A PROLONGED PERIOD OF SLEET AND FREEZING RAIN ISEXPECTED. MORE THAN ONE HALF INCH OF SLEET OR ONE QUARTER INCH OFICE ACCUMULATION IS POSSIBLE. IN AREAS LIKE WHEELING...PITTSBURGH AND GREENSBURG...3 TO 5INCHES OF SNOW COULD ACCUMULATE BEFORE MIXING WITH SLEET BYTUESDAY EVENING. A PROLONGED PERIOD OF SLEET COULD OCCUR BEFOREMIXING WITH FREEZING RAIN. MORE THAN ONE HALF INCH OF SLEET OR ONEQUARTER INCH OF ICE ACCUMULATION IS POSSIBLE. IN AREAS LIKE NEW CASTLE...BUTLER...KITTANNING AND INDIANA...4 TO8 INCHES OF SNOW EXPECTED. THE SNOW MAY MIX WITH SLEET ANDFREEZING RAIN TUESDAY EVENING. THERE WILL LIKELY BE A BREAK IN THE PRECIPITATION LATE TUESDAYEVENING. THEN DURING THE EARLY MORNING HOURS OF WEDNESDAY MORNINGCOLDER AIR AND A PERIOD OF SNOW WILL RETURN WITH ADDITIONALACCUMULATIONS OF 1 TO 3 INCHES OR MORE IN MANY AREAS. WEDNESDAY WILL BE QUITE WINDY WITH FALLING TEMPERATURES AND ADDITIONALACCUMULATIONS LIKELY IN ALL AREAS. THERE IS STILL UNCERTAINLY IN THE EXACT TRACK OF THE STORM AND THEAMOUNT OF SNOW...SLEET AND ICE IN MOST AREAS. ANY MIXTURE OFSLEET, FREEZING RAIN OR RAIN WILL DRAMATICALLY REDUCE TOTALACCUMULATIONS. A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW...SLEET...AND ICE ARE EXPECTED. THIS WILL MAKE TRAVEL VERYHAZARDOUS. POWER OUTAGES ARE POSSIBLE IF A LARGE AMOUNT OF ICEACCUMULATES ON POWER LINES.
This discussion of the winter storm is pretty much stating what we have know for the past few days and that is a great deal less than we would like to know. The uncertainty of the track is a huge player in this weather storm. Where the temperature in the mid layer of the atmosphere is above freezing and where it is below. A few of the weather models, (computer generated maps that process numerical information and data to create the scenarios in which we have to forecast) are predicting a small time when at the mid levels of the atmosphere it will go above freezing. There are a lot of factors in play, the temperature of the mid levels of the atmosphere and low levels (surface) are primary factors in how much of the precipitation will be snow, sleet or freezing rain. The time of this will also be interesting because it will start snow (heavy at times) during the early morning/overnight hours tonight. And this will continue into the day tomorrow, then it might chance over to sleet and freezing rain. I think that this will be a very short lived period of above freezing temperature that high up. Also I think because we will be pushing 5 – 6 pm before the change over occurs the night time cooling will help factor in. Thus changing it back to snow quickly. Again I believe that we are in for up to a foot of snow in some parts of southwestern PA.

Source: Accuweather.com
Tonight –Snow showers, otherwise mostly cloudy. Low 19
Tomorrow – Snow developing before dawn, Heavy at times, mixing with sleet and freezing rain during the late afternoon. High 23.
Tomorrow Night – Sleet, Freezing changing back to snow, heavy at times. Low 18.
Wednesday – Snow, tapering to snow showers during the afternoon. High 21.
Wednesday Night – Snow showers, otherwise mostly cloudy turning colder, Low 6!! We might again see windchill vaules below zero!!
Let it SNOW!!!
11 am update

Total Snowfall projections
Winter weather watch out of the Pittsburgh NWS
...WINTER STORM WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH WEDNESDAY MORNING...NATIONAL WEATHER SERVICE PITTSBURGH SAYS A WINTER STORM WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH WEDNESDAY MORNING.A LOW PRESSURE SYSTEM MOVING OUT OF THE SOUTHERN PLAINS MAY CAUSE SNOW ACCUMULATIONS OF MORE THAN 6 INCHES ACROSS PARTS OF THE UPPER OHIO VALLEY...PARTICULARLY FROM ZANESVILLE OHIO AND PITTSBURGH PENNSYLVANIA NORTHWARD TO INTERSTATE 80. AREAS SOUTH OF ZANESVILLEAND PITTSBURGH CAN ALSO GET A COATING OF ICE ON TOP OF THE SNOW...ASWARMER AIR ALOFT GETS DRAWN INTO THE SYSTEM LATE TUESDAY.ALTHOUGH THERE REMAINS SOME UNCERTAINTY ABOUT THE STORM TRACK ANDHENCE DETAILS ABOUT THE AMOUNT OF SNOW AND ICE FOR INDIVIDUALLOCATIONS...THE NATIONAL WEATHER SERVICE IS CONFIDENT THAT THISWINTER STORM SCENARIO WILL RESULT IN HAZARDOUS TRAVEL CONDITIONS ACROSS MUCH OF THE UPPER OHIO VALLEY TUESDAY INTO WEDNESDAY.VISIBILITIES WILL BE LOW AT TIMES AND PAVEMENTS WILL BECOME SNOW COVERED AND SLIPPERY...EVEN ICY. SO PLAN YOUR TRAVELS TUESDAY AND WEDNESDAY ACCORDINGLY...AND CHECK FOR UPDATES ON THIS WINTER STORM SITUATION.
Accuweather forecasted snowfall totals:

http://headlines.accuweather.com/news-story.asp?partner=accuweather&traveler=0&article=0
Friday, February 9, 2007
Accuweather map 1

If the high is that far north on the accu-weather map then the snow will move into the Pittsburgh area.

You can see how the low (L) moves through the southern half of VA on early Tuesday morning were I except it to max out and thus produce a snow event over the Pittsburgh area. I will be updating a few more time over the weekend as all weather people including my weather self gets a better handle on this!!
LET IT SNOW!!

Maps:
http://headlines.accuweather.com/news-story.asp?partner=accuweather&traveler=0&article=0
Monday, February 5, 2007
Weather Forecast 2/5 - 2/9 Brr cold!!!
In Pittsburgh we are now that bad off because in some towns in Upstate New York they received colder temperatures and snow up to 18" worth. Now image clearing that in this cold weather!! But let's take a look at the forecast.
Tonight - Clear skies. Windy. Low -3 Windchill values - 10 to -20
Tomorrow - Increasing cloudiness, chance of an afternoon snow shower. Winds decreasing. High 15. Windchill values -15 to -20
Tomorrow Night - Mostly Cloudy, increasing chances of snow, heavy at times. Low 10.
Wednesday - Mostly Cloudy, Snow showers. High 19
Wednesday Night - Partly Cloudy. Low 8
Thursday - Partly Cloudy. High 22.
Thursday Night - Mostly Clear. Low 7.
Friday - Mostly Sunny. High 23.
Friday Night - Partly Cloudy. Low 11.
Happy National Weatherperson's DAY!!
Friday, February 2, 2007
Groundhog Day forecast/ Weatherman Lane's forecast
Well they must not have been checking the prevailing weather forecast for the next few days. We are going to see a deep cold snap over the next few days with temperatures as highs only in the single digits. It's going to be downright cold over much of the nation over the next few days. I except Monday and tuesday mornings many school districts will be two hour delaying or even cancelling because of the cold polar airmass with the below zero windchills. This is the coldest air we have felt since mid January 1994!! Ok, so here is what the Pittsburgh area we will see:
Today: Snow Showers could be heavy at times. 1 - 3 inches of accumulation. Winds West 5 -10 mph. High 32.
Tonight: Scattered snow showers, otherwise cloudy. Low 12.
Tomorrow: Cloudy with Snow showers developing, accumulation 1 -2". Winds West 10 -15 mph, windchill values 5 above to 5 below. High 20.
Tomorrow Night: Mostly cloudy with flurries. Winds West increasing to 15 - 20 mph, windchill values zero to 10 below (0 to - 10). Low 7.
Sunday: Snow showers, winds west 15 - 20. Windchill 2 above to 8 below (2 to -8). High 12.
Sunday Night: Mostly cloudy, a chance of a flurry, LOW 0!! Windchill values (0 to -20).
Monday: Mostly cloudy, a chance of a flurry. Windy. High 8. Windchill values (5 to - 15)
Monday Night: Mostly cloudy snow showers. Windy. Low 2. Windchill values (0 to - 20)
Tuesday: Snow showers, not as windy High 11. Windchill values 5 above to 10 below (5 to -10)
Tuesday Night: Snow showers turning to flurries, Low 3. Windchill values 0 to 15 below (0 to -15)
Groundhog Day '07 preview
In just a few hours a little animal will pop out of his hole to the northeast of Pittsburgh, the animal will have tons of media coverage on what he has to say. Because this is not any old animal nope this is the greatest weatherman that ever was, Punxsutawney Phil!!
Groundhog day is the day when the weather forecasting has gone to the wild, well almost. Groundhog day has many traditions and even can trace it’s origins back into the church. February 2nd is the day on the church year called candlemas, this is a day when the priest would bless the candles to be used during the church year. He would give a candle to every family to light their homes for the rest of the winter because today the second of February is the half way point between the Winter Solstice and the Spring Equinox. A European tradition stated that, “If the sun came out February 2, halfway between winter and spring, it meant six more weeks of wintry weather.”
The tradition began in 1886 in the town of Punxsutawney. The name given to the groundhog was “Punxsutawney Phil” who is the Prognosticator of Prognosticators, and Weather Prophet Extraordinary.’’ The people who continue the tradition today is a group called the inner circle of the Punxsutawney groundhog club. Only one can speak the language of the groundhog (Groundhogese), this is the current president of the inner circle who tells the world Phil’s forecast.
At this year’s event a new meteorologist hall of fame will be dedicated. This hall of fame is meant to spotlight meteorologist who “the important role these individuals have on our daily lives.” A new meteorologist will be added every year to add to the tradition of groundhog day.
Last year he appeared with a terrible towel because the great Prognosticator called for two things last year six more weeks of winter and Steelers Superbowl victory three nights latter, both of which came true!!
Phil’s Records
shadow (six more weeks of winter) - 96
No shadow – 14
No records - 9
Happy Groundhog Day!!!
