Weather conditions for Inauguration Day

[cycloneye]

The 12z GFS at 216 hours is dry but Brrrrrrrrr cold.

[cycloneye]

Accuweather Latest Forecast for Inauguration Day

Weather Forecast For Inauguration Day 2009

Through Inauguration Day, AccuWeather.com will be focusing on the weather forecast in Washington, D.C., along with travel conditions for the tens of thousands heading to the nation's capital for the historic event.

Based on the long-range forecast for January 20 in Washington, D.C., those on hand may need heavy winter coats.

Of increasing concern in the days prior to Inauguration Day is a bitterly cold blast of air poised to emerge into the northern Plains tonight and on Monday. The air is forecast to blast across the eastern two-thirds of the nation by Wednesday. Reinforcing shots of arctic air could keep the nation's capital bitterly cold through Inauguration Day.

There is even concern for some snow in Washington D.C., on or prior to Inauguration Day. The snow is probably a long shot right now given that Washington, D.C., has had little snow at all this winter and that trend may continue. Strong winds could be a problem as well.

http://www.accuweather.com/regional-new ... eastusnews

[cycloneye]

12z EURO shows some precipitation with cold temps.

http://www.ecmwf.int/products/forecasts ... 9011112!!/

[cycloneye]

Accuweather Latest Forecast,Maybe some snow?

The weather leading up to Inauguration Day will certainly be very cold, but the AccuWeather.com predicts the cold will ease up by Inauguration Day. Temperatures by the end of this week will be in the 20s after a very brutally cold air mass moves into the Eastern part of the country. It will be a quick shot of cold air and will depart over the weekend. As of today, we are predicting temperatures in the 30s with a brisk wind for Inauguration Day which is not bad for Jan. 20.

As for the snow potential. Washington, D.C., has only had a trace of snow this winter. There are indications that a storm will come out of the South and develop just off the Virginia coast the day prior to the Inauguration. The official AccuWeather.com forecast shows light snow for Monday into Monday evening. If the storm were to develop even more, it's possible that heavier snow could affect the area Monday night. Given that virtually little snow has fallen across the area, it's probably a very low probability of a major snowfall in Washington, D.C., but the players are there and we will continue to monitor the snowfall potential.

http://www.accuweather.com/regional-new ... eastusnews

[cycloneye]

12z GFS at 192 Hours shows dry but cold on the 20th.

[HouTXmetro]

Hey guys and gals, I plan on being in the DC Metro area or the inauguration. I will be arriving on Jan 15th and Leaving on Jan 23rd. I live in Houston so I am nowhere use to the type of cold that is expected. The latest NWS forecast shows single digit weather in the suburbs Saturday. I think I will be hibernating over the weekend...lol. Anyways, I'm not sure how cold it will be MLK and inauguration day. Weather.com is showing 30's for high and 20's for low. Still too cold for me.

[Ed Mahmoud]

I hear a zillion people will be in DC, and for security purposes, some streets will be closed off.


I'd watch the inauguration from a DC area bar room, and then tell people you were in DC for the inauguration.


GFS suggests 20s for high temps.

[cycloneye]

12z EURO at 192 hours shows dry but cold temps,same as GFS.

http://www.ecmwf.int/products/forecasts ... 9011212!!/

[HouTXmetro]

I hear a zillion people will be in DC, and for security purposes, some streets will be closed off.


I'd watch the inauguration from a DC area bar room, and then tell people you were in DC for the inauguration.


GFS suggests 20s for high temps.

20's for High and outdoors? I'm going to be miserable. I can't stand being outdoors in 50 degree weather longer than 10 minutes. Let alone HOURS in sub Freezing Weather. Horrible, just horrible! lol

[cycloneye]

20's for High and outdoors? I'm going to be miserable. I can't stand being outdoors in 50 degree weather longer than 10 minutes. Let alone HOURS in sub Freezing Weather. Horrible, just horrible! lol

You can have three or four layers and you will be fine out there.But on the other hand,its the many hours that you will be exposed to the bitter cold that may be not good for you that never has been in this frigid enviroment.

[HouTXmetro]

20's for High and outdoors? I'm going to be miserable. I can't stand being outdoors in 50 degree weather longer than 10 minutes. Let alone HOURS in sub Freezing Weather. Horrible, just horrible! lol

You can have three or four layers and you will be fine out there.But on the other hand,its the many hours that you will be exposed to the bitter cold that may be not good for you that never has been in this frigid enviroment.

NWS is showing Sunny and Highs in the mid 30's Mon/Tues. Does that seem correct?

[cycloneye]

20's for High and outdoors? I'm going to be miserable. I can't stand being outdoors in 50 degree weather longer than 10 minutes. Let alone HOURS in sub Freezing Weather. Horrible, just horrible! lol

You can have three or four layers and you will be fine out there.But on the other hand,its the many hours that you will be exposed to the bitter cold that may be not good for you that never has been in this frigid enviroment.

NWS is showing Sunny and Highs in the mid 30's Mon/Tues. Does that seem correct?

Accuweather has a high of 39f.

http://www.accuweather.com/us/dc/washin ... p?metric=0

The Weather Channel has a high of 38f.

http://www.weather.com/outlook/travel/b ... v_business

But still changes can occur so stay tuned.

[CajunMama]

I hear a zillion people will be in DC, and for security purposes, some streets will be closed off.


I'd watch the inauguration from a DC area bar room, and then tell people you were in DC for the inauguration.


GFS suggests 20s for high temps.

Why does that not surprise me?

[cycloneye]

Capitol Weather Gang Latest Forecasts

Jason Samehow Forecast:

Today's Update:: As Inauguration Day draws closer, the weather outlook doesn't look any easier to predict...yet.

For me, the nagging question is whether the cold pattern -- which I'm very confident will move in later this week -- will retreat by Inauguration Day. There are some indications it may, at least partially, but probably not enough to boost temperatures to normal (high in the low 40s) or higher. The other nagging issue is that it can be stormy during pattern transitions, but indicators about storminess have been inconsistent.

At the end of the day, I see no pressing reason to change the original forecast I made Jan. 2. which calls for slightly below average temperatures and the possibility of precipitation on the eve of or during Inauguration Day.


Dan Stillman Forecast:

Today's Update: While I think the serious cold expected by this Friday will have eased by early next week, my confidence is increasing that temperatures will be near to below normal around the time of Inauguration Day (and thus my confidence is increasing that my worthy competitor to the left may be declared the winner of this duel, as he's gone colder than I have from the start!). So I'll drop my temperatures significantly from my previous forecast.

Some of the long-range model guidance has also hinted at a storm system nearby within a day or two of Inauguration Day, but it's still too early in the game to put much stock in that. So I'll stick with my 30% chance of precipitation, but with the potentially colder temperatures I'll throw snow in along with the chance of rain.

http://voices.washingtonpost.com/capita ... d_sta.html

[xironman]

Hey guys and gals, I plan on being in the DC Metro area or the inauguration. I will be arriving on Jan 15th and Leaving on Jan 23rd. I live in Houston so I am nowhere use to the type of cold that is expected. The latest NWS forecast shows single digit weather in the suburbs Saturday. I think I will be hibernating over the weekend...lol. Anyways, I'm not sure how cold it will be MLK and inauguration day. Weather.com is showing 30's for high and 20's for low. Still too cold for me.

Do not go outside on Friday. From the Sterling NWS long range

RELENTLESS COLD AIR WILL THEN TANK TEMPS INTO THE SINGLE DIGITS
QUICKLY THRU THE EVNG HRS THURSDAY...BARELY INTO THE TEENS ACROSS
THE I-95 CORRIDOR. OVERNIGHT...DANGEROUS WIND CHILLS ARE EXPECTED
ACROSS THE REGION...W/ POSSIBLE WIND CHILL WARNINGS FOR THE WRN
ZONES OF THE CNTRL APLCN REGION AND ADVISORIES ACROSS MUCH OF THE
SHENANDOAH VALLEY INTO PORTIONS OF THE MID ATLC PIEDMONT. WINDS
OVERNIGHT WILL BE GRADUALLY DECREASING FROM THE NW...FROM THE
15-20 MPH RANGE DURING THE LATE EVNG TO 5-10 MPH RANGE DURING THE
PRE-DAWN HRS...BUT W/ AMBIENT TEMPS IN THE SINGLE DIGITS AND JUST
ABOVE...WIND CHILL VALUES WILL CERTAINLY BE ENOUGH TO WARRANT A
LEAST ADVISORY CRITERIA.

Monday and Tuesday will be a piece of cake, at least 20 degrees warmer.

[cycloneye]

12z GFS shows dry on the 20th with temps not as cold as they will be on the 15th.



http://www.nco.ncep.noaa.gov/pmb/nwprod ... el_l.shtml

[cycloneye]

Capital Weather Gang Latest Forecast

INAUGURATIONCAST
Tuesday, January 20, 2009
MORNING LOW ---- SWEARING IN*---- WEATHER CHANCE OF PRECIP
24-29F ---- 29-34F ---- 25%

Confidence is growing, but not quite high, that colder than normal conditions will prevail on Inauguration Day with highs in the 30s. It's still too early to rule out precipitation, but the current thinking is that it's more likely on Sunday or Monday (Inauguration eve) than Inauguration Day itself. And even Sunday and Monday, the likelihood of precipitation (which would probably be snow) is on the low side. Confidence: Low-Medium

http://voices.washingtonpost.com/capita ... _hold.html

[cycloneye]

D.C. NWS Long Range Forecast from the 15th to the 20th

.LONG TERM /WEDNESDAY NIGHT THROUGH TUESDAY/...

AN UPPER-LEVEL LOW OVER EASTERN CANADA WILL REMAIN IN PLACE THROUGH
THE FORECAST PERIOD. THIS WILL CARVE OUT A POTENT MID-LEVEL TROUGH
OVER THE MID-ATLANTIC BRINGING COLD CONDITIONS. SEVERAL DISTURBANCES
WILL ROTATE AROUND THE TROUGH BRINGING CHANCES FOR LIGHT
PRECIPITATION. THE EXACT TIMING AND TRACK OF THESE SYSTEMS REMAINS
UNCERTAIN THIS FAR OUT.

AN ALBERTA CLIPPER WILL PASS THROUGH NORTHERN MARYLAND OVERNIGHT
WEDNESDAY AND THEN QUICKLY OFF THE MID-ATLANTIC COAST THURSDAY. THE
BEST CHANCE FOR SNOW WILL BE ACROSS THE POTOMAC HIGHLANDS...EASTERN
PANHANDLE OF WEST VIRGINIA...AND NEAR THE MASON DIXON LINE. HAVE
KEPT THE HIGHEST POPS AND ACCUMULATING SNOW NEAR THE ALLEGHENY FRONT
WHERE UPSLOPE SNOW WITH THIS SYSTEM IS ALSO EXPECTED. ARCTIC HIGH
PRESSURE WILL APPROACH THE REGION FROM THE NORTHERN PLAINS BEHIND
THIS SYSTEM THURSDAY ALLOWING FOR BITTERLY COLD CONDITIONS BY
THURSDAY NIGHT. LATEST GUIDANCE CONTINUES TO INDICATE LIMITED
INSTABILITY THURSDAY INTO THURSDAY NIGHT BEHIND THE CLIPPER DUE TO
THE STRONG COLD ADVECTION. WILL CONTINUE WITH CHANCE/SLIGHT CHANCE
FOR SNOW SHOWERS ACROSS THE NORTHERN AND WESTERN PORTION OF THE CWA.
HIGHER POPS NEAR THE ALLEGHENY FRONT. TEMPERATURES THURSDAY NIGHT
AND FRIDAY WILL BE AROUND 20-25 DEGREES BELOW CLIMO. THE NORMAL HIGH
AND LOW FOR WASHINGTON DC IS 42 AND 27 DEGREES RESPECTIVELY.

ARCTIC HIGH PRESSURE WILL MOVE OFF THE MID-ATLANTIC COAST SATURDAY
ALLOWING A RETURN FLOW TO SET UP. TEMPERATURES WILL REMAIN WELL
BELOW NORMAL DESPITE THE RETURN FLOW. ANOTHER UPPER-LEVEL
DISTURBANCE AND ITS ASSOCIATED SURFACE LOW WILL TRACK THROUGH THE
REGION SATURDAY NIGHT INTO SUNDAY BRINGING THE CHANCE FOR
PRECIPITATION. BELOW NORMAL TEMPERATURES WILL CONTINUE MONDAY BEHIND
THIS SYSTEM.

BELOW NORMAL TEMPERATURES ARE EXPECTED FOR TUESDAY AS WELL. ANOTHER
DISTURBANCE WILL BRINGING THE CHANCE FOR SNOW. THE EXACT TIMING AND
TRACK OF THIS DISTURBANCE REMAINS UNCERTAIN THIS FAR OUT.

http://forecast.weather.gov/product.php ... hlight=off

[cycloneye]

D.C.NWS Latest Long Range Discussion

.LONG TERM /THURSDAY THROUGH TUESDAY/...

WINTER COLD HAS DEFINITELY SETTLED INTO THE MID ATLC. FOR EXAMPLE...
IN DC PROPER IT LIKELY WON/T GET ABOVE FREEZING UNTIL SUNDAY...AND
ONLY FOR A FEW HRS DURING THE AFTN. TWO STRAIGHT NIGHTS OF SUBZERO
AND SINGLE DIGIT WIND CHILLS ARE CLOSE AT HAND. ARCTIC AIR WILL
INVADE THE REGION EAST OF APLCNS AFTER A WINDY DAY ON THURS. AFTER
THE ARCTIC COLD FRONT SLIDES ACROSS THE AREA EARLY THURS MRNG /AND
DWPTS DROP INTO THE SINGLE DIGITS/ TEMPS WILL PLUMMET THRU THE REST
OF THE AFTN/EVNG HRS. BY LATE EVNG...TEMPS WILL ALREADY BE IN THE
UPPER TEENS ACROSS THE I-95 CORRIDOR. LOWS WILL BOTTOM OUT IN THE
LOWER TEENS FOR THE METRO AREA...SINGLE DIGITS FOR MUCH OF THE CNTRL
AND WRN PORTIONS OF THE CWA...AND A FEW SUBZERO MARKS ACROSS THE
HIGHER ELEVATIONS. THE BIGGER ISSUE W/ THIS IS THAT WINDS WILL STILL
BE SUBSIDING FROM A BREEZY AFTN W/ PEAK WIND GUSTS IN THE 30-35 MPH
RANGE.

BY LATE EVNG...SFC WINDS WILL STILL BE GUSTING INTO THE 15-20 MPH
RANGE FOR MUCH OF THE AREA. OVERNIGHT...OVERALL WIND SPEEDS WILL
DROP INTO THE 5-10 MPH RANGE...BUT WELL INTO THE OVERNIGHT HRS.
WIND CHILL PRODUCTS MAY BE WARRANTED...MAINLY WEST OF THE VA BLUE
RIDGE. EAST OF THE BLUE RIDGE...WINDS SHOULD BE LIGHT ENOUGH BY
THE TIME TEMPS DROP INTO THE LOWER TEENS. IF GUIDANCE SUGGESTS WINDS
WILL DECREASE QUICKER THAN CURRENT SOLUTIONS SUGGEST...MUCH LESS
AREA MAY NEED TO BE COVERED THO AMBIENT TEMPS WILL BE DANGEROUS
ENOUGH THAT THE PUBLIC SHOULD AT VERY LEAST BE WARY OF THE COLDEST
AIR OF THE SEASON WILL BE UPON US. HIGHS ON FRI BARELY OUT OF THE
TEENS...POSSIBLY BREACHING 20 DEGREES EAST OF I-95...A FEW SINGLE
DIGITS READING FOR HIGHS ACROSS EXTREME WRN PANHANDLE REGIONS OF WV.

SAME STORY FRIDAY NIGHT...JUST A BIT COLDER AND LESS WINDY. WITH
EVEN DRIER AIR /DWPTS WELL BELOW ZERO/ AS THE CENTER OF A STRONG
SFC HIGH PASSES OVER THE REGION...AMBIENT TEMPS WILL DROP INTO AT
LEAST SINGLE DIGITS FOR MUCH OF THE OHIO VLY ALL THE WAY TO THE
ATLC COAST. NO WIND CHILL PRODUCTS ANTICIPATED FOR OVERNIGHT FRI
W/ WINDS LIGHT/VRB.

BY THE END OF THE WEEK...THE LONGWAVE TROF WILL BE POSITIONED A BIT
FURTHER EAST...MAKING THE ARCTIC BLASTS ALSO DISPLACED FURTHER EAST
AS THE SLIDE SE ACROSS THE SRN END OF HUDSON BAY.

SAT...ANOTHER SERIES OF WEAK UPPER VORTS WILL SLIDE THRU THE GRT
LKS REGION. A SFC LOW LOOKS TO INITIALLY MAKE A FAST APPROACH
TOWARD THE CNTRL APLCNS FROM THE NW...BUT DISSIPATES OVER LAKE
ERIE AS A SECONDARY UPPER WAVE PUSHES DUE SOUTH INTO THE UPPER
MIDWEST LATE SAT. SLY WINDS WILL INCREASE UP THE ERN SEABOARD LATE
SAT...ADDING A BIT MORE LOW LEVEL MOISTURE A MAKING IT FEEL A BIT
LESS MISERABLE GOING INTO SUNDAY.

THE BEST CHANCE FOR AT LEAST LOW CHANCE SNOW PROBABILITIES LOOKS
TO BE SUNDAY AS THE LOW WASHES OUT AND THE INCOMING DYNAMICS OF
THE UPPER TROF PUSH THE DISSIPATING FRONT ACROSS THE REGION. THE
00Z EUROPEAN DOESN/T DISSIPATE THE LOW AND INSTEAD DEVELOPS A
NOR`EASTER FOR THE NEW ENGLAND STATES SUNDAY INTO EARLY MON...AN
UNLIKELY SCENARIO AT THIS TIME.

THEN...ONE AFTER ANOTHER...UPPER WAVES SLIDES DOWN THE SAME PATH
OVER THE GRT LKS REGION THRU THE MIDDLE OF NEXT WEEK. EACH ONE W/
AT LEAST A LOW CHANCE OF A FEW FLURRIES OR SCATTERED SNOW BANDS.
TUESDAY OF NEXT WEEK /AT THIS TIME/ SHOWS MODELS BACKING OFF FROM
EVEN LOW CHANCE SNOWS AS IT LOOKS LIKE A TRANSITION DAY FROM ONE OF
THE WEAK LOW PRESSURE SYSTEMS EXITING THE REGION OFF THE ATLC COAST.

TUE A TRANSITION DAY MEANING TEMPS STILL IN THE 20S DURING THE
MRNG HRS...WINDS GRADUALLY INCREASING DURING THE LATE MRNG AND
HIGHS JUST ABOVE FREEZING. MOS GUIDANCE HAS EVEN BACKED OFF ON
CLOUD COVER...FOR A MOSTLY SUNNY AFTN. ALL THIS LOOKS TO HINGE ON
THE TIMING AND PROGRESS OF ONE OF THESE UPPER VORTS THAT...FOR
EXAMPLE THE GFS PUSHES DOWN INTO THE DEEP SOUTH ON TUES...WHICH
WOULD BE A DRY SOLUTION FOR THE MID ATLC.

http://forecast.weather.gov/product.php ... hlight=off

[cycloneye]

Weather Channel Forecast for Inauguration Day

Inauguration: The inauguration of President-elect Obama is 6 days away and millions will arrive in Washington, D.C. to be witnesses of this historic day.

You can check the weather.com 10-day outlook to get an early glimpse of the weather on January 20.

At this point, our main concern is how much cold air in place and how strong will the winds be. If you believe the computer weather models right now, there is possibility for a modest storm to take shape off the New England coast.

It's not the snow we're worried about but the tight pressure gradient that develops between the low pressure and the high pressure building in the central U.S. This setup aids in the creation of strong northerly winds blowing through Washington D.C.

So you probably know where we're going with this; the wind chill factor may become a big player on Tuesday. Temps in the 30s and winds out of the north at 20 to 30 mph equals wind chills in the upper teens, low 20s. Just something to keep in mind as we fine-tune the forecast leading up to January 20.

In confidence we can say this, if attending one should prepare for a cold day where layers of clothing will be necessary complete with hats, gloves and scarves.

http://www.weather.com/newscenter/topst ... om=hp_news