This is the blog for the United States' national forecast. These summaries are by Weather Underground forecasters and are updated twice each day.
By: nationalsummary, 7:32 AM GMT on March 21, 2014
Weather Underground Forecast for Friday, March 21, 2014
Snowy conditions will diminish across the Northeast on Friday as a low pressure system pulls northeastward and further away from the region. Expect cold temperatures to persist for the Northeastern states along the back side of this system as it continues to pull cold air in from Canada. Expect highs to remain in the mid-30s across the Northeast, with a slight chance of a few lingering snow showers for the northern most locations.
Behind this activity to to the west, a trough of low pressure continues moving eastward from the northern Plains, across the Upper Midwest and into the Great Lakes. This system will produce scattered snow showers from Montana through northern Minnesota and Wisconsin on Friday. Snowfall totals will range from 3 to 5 inches across northern Minnesota and northern Wisconsin on Friday. Winter weather advisories have been issued from North Dakota through northern Minnesota. Strong winds will accompany this system with gusts up to 35 mph possible for these areas. Thus, dangerous roads and travel conditions are anticipated for the region.
The rest of the nation will remain dry and warm as high pressure dominates from the West Coast through the southern and central Plains and into the Southeastern states. High fire danger may remain in effect for the central US as dry and breezy conditions are favorable for wildfire spread.
By: nationalsummary, 11:56 AM GMT on March 20, 2014
Weather Underground midday recap for Thursday, March 20, 2014
Snowy conditions persisted in the Northeast on Thursday as a winter storm continued moving from the Great Lakes and into eastern Canada. As the low pressure system moved eastward, it pulled moisture in from the Atlantic Ocean, while at the same time cool air poured in from Canada. This allowed for more snow to spread eastward across the Northeast. Snowfall totals varied from 4 to 8 inches in parts of Maine, with up to 12 inches reported at Dexter, Maine and 13 inches reported at Sebec, Maine. The back side of this system allowed for scattered snow showers to continue across the eastern Great Lakes region with snowfall totals ranging from 2 to 4 inches across northern New York and into Vermont. High winds accompanied this system with widespread reports from 40 to 55 mph, gusting to 75 mph at Mt. Washington, New Hampshire.
Meanwhile in the West, a trough of low pressure continued moving eastward over the northern Rockies and into the northern Plains. This brought scattered rain and snow showers to the region from Montana through the Dakotas.
Elsewhere, high pressure dominated the rest of the Western states and allowed for warm and dry conditions to continue from the West Coast through the southern Plains. High fire danger warnings were issued from eastern New Mexico through Missouri due to these dry and breezy conditions.
By: nationalsummary, 11:54 AM GMT on March 20, 2014
Weather Underground Forecast for Thursday, March 20, 2014
Wintry weather will persist over the Northeast as a low pressure system continues moving eastward from the Great Lakes and across eastern Canada. This system will bring snowy conditions to the extreme Northeast from northern New York through Maine. Snowfall totals will range from 2 to 4 inches, with up to 6 inches possible in northern Maine. Thus, winter storm advisories have been issued across the extreme Northeast. Warmer temperatures along the southern side of this system will allow for a mix of rain and snow showers to spread across the rest of the New England states on Thursday.
Meanwhile, behind this system in the West, a trough of low pressure will continue moving eastward from the Pacific Northwest through the northern Rockies and northern Plains. Moisture will be limited with this system and thus snowfall totals will range from 2 to 3 inches. Strong winds will accompany this system with gusts up to 35 and 40 mph at highest mountain passes. The leading edge of this system may push snow showers across the Dakotas and into northern Minnesota late Thursday night. Dry conditions will persist for the rest of the Western states as high pressure remains the dominant weather feature from the Southwest through the southern Plains.
By: nationalsummary, 11:19 AM GMT on March 19, 2014
Weather Underground midday recap for Wednesday, March 19, 2014
A winter storm brought snow to the Great Lakes region on Wednesday, while a cold front moved into the Pacific Northwest and triggered rain and mountain snow showers. A low pressure system moved over the Great Lakes and pulled moisture in from the east. This allowed for scattered snow showers to develop over the Upper Peninsula of Michigan, northern New York state, and across southeastern Canada. The rest of the region saw rain showers as temperatures remained above freezing. Rain showers have developed across southern Michigan and eastward through Pennsylvania. Rainfall totals ranged from a half of an inch to an inch, while snowfall totals reached over 5 inches in some parts of northern Michigan. Ironwood, Michigan reported 7.9 inches of snow on Wednesday.
Meanwhile out West, a low pressure system spinning in the Gulf of Alaska pushed a cold front into the Pacific Northwest. This allowed for scattered rain and snow showers to develop across Washington. Snowfall totals ranged from 6 to 8 inches above 3,000 feet, while rainfall totals varied around a half of an inch. The rest of the Western states and the Plains remained dry on Wednesday as high pressure dominated.
By: nationalsummary, 11:19 AM GMT on March 19, 2014
Weather Underground Forecast for Wednesday, March 19, 2014
An extensive cold frontal boundary will stretch from the southern Plains to the Great Lakes on Wednesday, while a separate cold front will approach the Pacific Northwest.
A cold frontal boundary will extend from Texas to the western Great Lakes on Wednesday. Low pressure along the northern end of the frontal boundary will drive an active weather system across the northern tier of the country. A swath of heavy snow will push across the Great Lakes, Upstate New York and northern New England, while rain and freezing rain will be possible over the Ohio Valley, the Mid-Atlantic and southern New England. Scattered snow showers will also be possible across the upper Midwest. The Southeast will stay mostly clear of precipitation on Wednesday.
Out west, a separate cold front is forecast to approach the northwestern corner of the country. Rainy weather will push across Washington and Oregon, while moderate to heavy snow showers are expected across the Cascades and the northern Rockies. The Desert Southwest will remain warm and sunny due to a ridge of high pressure along the coast of California. Temperatures will range between the 70s and 80s across the southern California and Arizona deserts. Meanwhile, high pressure will also build over Texas, keeping conditions mostly clear across the southern Plains on Wednesday.
By: nationalsummary, 9:19 PM GMT on March 17, 2014
Weather Underground Forecast for Monday, March 17, 2014
A cold frontal boundary will shift southeastward over the East Coast on Monday, while a separate cold front will extend from the West Coast to the northern Plains.
An active weather system associated with a cold frontal boundary will move over the Eastern Seaboard on Monday. An abundance of moisture from the Gulf of Mexico will allow for strong to severe thunderstorms to develop over Florida and parts of southern Georgia. Rainy weather is also expected across Alabama, Tennessee, northern Georgia and South Carolina. As this cold front sinks southward over the Mid-Atlantic, temperatures are expected to drop 20 degrees across the northeastern corner of the Country. Cold temperatures will allow for winter weather to develop over a handful of states. Heavy sleet and snow is forecast to impact the northern Tennessee Valley, North Carolina, Virginia, West Virginia, Maryland, Delaware and southeastern Pennsylvania.
A separate cold front will extend from northern California to North Dakota on Monday. Rainy weather is expected across the Pacific Northwest and lower elevations across the upper Intermountain West. Light snow showers will push across the Cascades, while the northern Rockies and the northern Plains can expect moderate to heavy snow showers. Freezing rain will also be possible across South Dakota and Minnesota.
Conditions will remain warm and sunny from the Southwest to the southern Plains on Monday.
By: nationalsummary, 8:54 PM GMT on March 17, 2014
The views of the author are his/her own and do not necessarily represent the position of The Weather Company or its parent, IBM.