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Today's Operations

Weather Summary

As of 9:40 a.m. Central, Mon., Jan. 26, 2015

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Short Range Forecast Discussion NWS Weather Prediction Center College Park MD

...A major winter storm to affect the Northeastern U.S. on Monday/Tuesday...

...Very mild temperatures to continue over the central states...

...Wet weather expected across the Desert Southwest...

At this point in time, a clipper system is weakening over the Ohio Valley and Central Appalachians which will eventually give way to a potent coastal storm. A general region of 2 to 4 inches of snow should spread over the much of the Mid-Atlantic region given the limited moisture and decaying nature of the initial system. However, as the upper trough digs across the Carolinas, it will attain a favorable orientation for rapid strengthening. By Monday evening and into the overnight hours, coastal cyclogenesis will commence east of the Delmarva with heavy precipitation spreading north and west of the low track. Unlike the system this past week which had limited access to cold air, a pronounced surface ridge to the north will supply sufficient subfreezing air to the Northeastern U.S. This will allow snow to be the dominant precipitation type with hefty totals expected given the anomalous slug of moisture hitting the New England coast. It appears many of the major metropolitan areas will be affected anywhere from Philadelphia through New York City and into Boston. The WPC winter weather desk expects anywhere from 18 to 24 inches of snow from southeastern New York all the way along coastal New England. An additional maxima is likely in the vicinity of eastern Massachusetts where 24 to 30 inches of snow is possible. Given the mesoscale nature of heavy snow bands, isolated areas of even higher amounts cannot be ruled out.

As the surface low deepens rather markedly late Monday night, the pressure gradient will increase resulting in very windy conditions across the northeastern states. In particular, forecast wind gusts may easily reach the 40 to 70 mile per hour range resulting in near-zero visibility given the abundance of snow on the ground. This has resulted in blizzard warnings being issued from southeastern New York/northeastern New Jersey up the coastline to northeastern Maine.

Very warm temperatures for late January to prevail over the Central U.S. Persistent downsloping flow in the lee of the Rockies will promote ample warmth over the Northern Rockies and into much of the Great Plains. Temperatures anomalies are expected to peak around the 25 to 30 degree above normal range. This would suggest highs into the low 70s over the Central Plains early this week.

Elsewhere, a secondary clipper system will affect the Upper Great Lakes on Monday with only a few inches of snow expected given the weak nature of the feature. Out West, an upper low initially anchoring the subtropical East Pacific will lift northward spreading a broad axis of light to moderate rainfall. Snow levels will be rather high keeping wintry precipitation confined to the higher elevations of the Central Sierra Nevada range.

Operations Summary

As of 8:19 a.m. Central, Mon., Jan. 26, 2015

Cities/Regions that may be affected by delays:

New York Metros - Delays and cancels expected due winter snowstorm.

Airport Average Delay Reason
PHILADELPHIA 80 Minutes LOW CEILINGS AND SNOW

Note: United Airlines will do everything practical to ensure we provide the most accurate flight status information at all times. However, situations change quickly and many factors affect our scheduled operations. Please understand that a flight listed as "Delayed" may, depending on the circumstances, depart "On Time". We suggest you always check-in for the original scheduled departure time of your flight.

Current Hub Weather Conditions

As of 6:35 p.m. Central, Mon., Jan. 26, 2015

Newark, NJ (EWR)
Light Snow
Light Snow
Temp: 25°F (-4°C)
Wind: From the NNE at 17 mph
Humidity: 91%
Visibility: 5.00
Barometer: 29.83 inches
10 Day Forecast
Houston, TX (IAH)
Mostly Cloudy
Mostly Cloudy
Temp: 56°F (13°C)
Wind: From the CALM at 0 mph
Humidity: 60%
Visibility: 10.00
Barometer: 30.14 inches
10 Day Forecast
Cleveland, OH (CLE)
Cloudy
Cloudy
Temp: 22°F (-6°C)
Wind: From the N at 9 mph
Humidity: 70%
Visibility: 10.00
Barometer: 29.92 inches
10 Day Forecast
Denver, CO (DEN)
Fair
Fair
Temp: 60°F (16°C)
Wind: From the SE at 7 mph
Humidity: 25%
Visibility: 10.00
Barometer: 30.23 inches
10 Day Forecast
Washington, DC, VA (IAD)
Light Snow
Light Snow
Temp: 27°F (-3°C)
Wind: From the NNW at 12 mph
Humidity: 86%
Visibility: 2.00
Barometer: 29.75 inches
10 Day Forecast
Los Angeles, CA (LAX)
Light Rain
Light Rain
Temp: 66°F (19°C)
Wind: From the S at 15 mph
Humidity: 45%
Visibility: 10.00
Barometer: 30.03 inches
10 Day Forecast
Chicago, IL (ORD)
Light Snow/Freezing Rain
Light Snow/Freezing Rain
Temp: 25°F (-4°C)
Wind: From the SSW at 6 mph
Humidity: 90%
Visibility: 4.00
Barometer: 29.89 inches
10 Day Forecast
San Francisco, CA (SFO)
Mostly Cloudy
Mostly Cloudy
Temp: 61°F (16°C)
Wind: From the CALM at 0 mph
Humidity: 54%
Visibility: 10.00
Barometer: 29.97 inches
10 Day Forecast

For additional weather-related information for select U.S. airports, please visit the Federal Aviation Administration Web site.

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