Weather Alert in Iowa
Winter Storm Watch issued March 14 at 6:11AM CDT until March 16 at 1:00PM CDT by NWS La Crosse WI
AREAS AFFECTED: Floyd; Chickasaw; Fayette; Clayton; Grant
DESCRIPTION: ...MAJOR WINTER STORM TONIGHT INTO MONDAY MORNING... .A prolonged, high-impact winter storm affects the region tonight through Monday morning. Highest snow totals in excess of 12 to 18 inches are favored north of Interstate 90 with some locales north of Highway 10 approaching 24 inches. Along Interstate 90, a wintry mix of snow, freezing rain, and sleet makes it difficult to pin down exact snow and ice amounts, but impacts do warrant a Winter Storm Warning. Across northeast Iowa and southwest Wisconsin, snow does not look to arrive until Sunday afternoon, so the Winter Storm Watch is maintained for now. Increasing winds Sunday afternoon and night should result in whiteout conditions for exposed locales and an upgrade to a Blizzard Warning is likely once the exact threat area is determined. Regardless of exact snow amounts, expect major travel impacts regionwide with some roads possibly impassable, especially in wind-prone areas. * WHAT...Heavy snow possible. Total snow accumulations between 3 and 6 inches possible. Winds could gust as high as 55 mph and may result in blizzard conditions later Sunday into Monday morning. * WHERE...In Iowa, Floyd, Chickasaw, Clayton, and Fayette Counties. In Wisconsin, Grant County. * WHEN...From Sunday afternoon through Monday afternoon. * IMPACTS...Travel could be very difficult. Widespread blowing snow could significantly reduce visibility. The hazardous conditions could impact the Monday morning commute. Gusty winds could bring down tree branches.
INSTRUCTION: Monitor the latest forecasts for updates on this situation.
Want more detail? Get the Complete 7 Day and Night Detailed Forecast!
Current U.S. National Radar--Current
The Current National Weather Radar is shown below with a UTC Time (subtract 5 hours from UTC to get Eastern Time).
National Weather Forecast--Current
The Current National Weather Forecast and National Weather Map are shown below.
National Weather Forecast for Tomorrow
Tomorrow National Weather Forecast and Tomorrow National Weather Map are show below.
North America Water Vapor (Moisture)
This map shows recent moisture content over North America. Bright and colored areas show high moisture (ie, clouds); brown indicates very little moisture present; black indicates no moisture.
Weather Topic: What are Wall Clouds?
Home - Education - Cloud Types - Wall Clouds
Next Topic: Altocumulus Clouds
A wall cloud forms underneath the base of a cumulonimbus cloud,
and can be a hotbed for deadly tornadoes.
Wall clouds are formed by air flowing into the cumulonimbus clouds, which can
result in the wall cloud descending from the base of the cumulonimbus cloud, or
rising fractus clouds which join to the base of the storm cloud as the wall cloud
takes shape.
Wall clouds can be very large, and in the Northern Hemisphere they generally
form at the southern edge of cumulonimbus clouds.
Next Topic: Altocumulus Clouds
Weather Topic: What are Altostratus Clouds?
Home - Education - Cloud Types - Altostratus Clouds
Next Topic: Cirrocumulus Clouds
Altostratus clouds form at mid to high-level altitudes
(between 2 and 7 km) and are created by a warm, stable air mass which causes
water vapor
to condense as it rise through the atmosphere. Usually altostratus clouds are
featureless sheets characterized by a uniform color.
In some cases, wind punching through the cloud formation may give it a waved
appearance, called altostratus undulatus. Altostratus clouds
are commonly seen with other cloud formations accompanying them.
Next Topic: Cirrocumulus Clouds
Current conditions powered by WeatherAPI.com
