Noaa national weather service

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Noaa national weather service

Displays flood and flash flood reports as well as intense rainfall observations for user-selectable time ranges and customizable geographic regions. Includes ability to download reports and associated metadata in csv format. Reports include rain, snow, ice, and severe weather, as well as other significant information from storm spotters. Displays the climatological significance of precipitation forecast by WPC. We are actively working to resolve this problem. Interactive display of where temperatures could approach or exceed records within the contiguous U. Displays Days NDFD maximum and minimum temperatures, along with their respective departures from climatology. Prototype Snowband Probability Forecasts An interactive tool that depicts areas of heavy snowfall from individual members of high-resolution short range ensemble forecasts. Weather in Context Prototype Displays forecast information and its climatological context to quickly alert a forecaster when a record or neear-record breaking event is possible. Analog guidance that uses an objective approach to find historical events that are similar to the upcoming forecast. Nationally consistent and skillful suite of calibrated forecast guidance based on a blend of both NWS and non-NWS numerical weather prediction model data and post-processed model guidance. A portal for atmospheric river forecasts and diagnostics from the Center for Western Weather and Water Extremes. Weather Prediction Center. National Oceanic and Atmospheric Administration.

Analyzed at 09Z Mon Feb 26,

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A significant winter storm continues to impact much of the West with heavy mountain snow and widespread damaging winds, including dangerous, blizzard conditions in the Sierra Nevada. In the Central and Southern High Plains, an expansive area of warm, dry, and windy conditions is leading to a large area of elevated to high-end critical fire-weather conditions. Toggle navigation. View Location Examples. Sorry, the location you searched for was not found.

Noaa national weather service

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At the surface, a low will deepen as it shifts east from MN toward southern Ontario. An interactive tool that depicts areas of heavy snowfall from individual members of high-resolution short range ensemble forecasts. Warm advection and southerly low-level flow ahead of the front will allow for modest airmass modification into the Midwest. Current consensus is north of I with some guidance as far north as southern MI which leads this to be the focal point of expected convective development. The dual waves will somewhat offset the meridional extension of the highest moisture, but there is some potential for a better surge of theta-e air and a modest TROWAL pivoting into the northern Great Lakes. Experimental Winter Storm Outlook. A Slight Risk upgrade is non-zero, but current forecasted rates within any convection keep this capped for the time-being. The moisture will aid in creating scattered light rain showers over parts of the Ohio Valley. This deep layer lift will act upon increasing moisture as PWs surge northeastward downstream of this trough and within intensifying moist isentropic ascent in the K layer. Intense Rainfall and Flash Flood Reports. Probabilistic Winter Storm Severity Index. The hazards associated with these thunderstorms are frequent lightning, severe thunderstorm wind gusts, hail, and a few tornadoes. Analyzed at 21Z Sun Feb 25,

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Displays flood and flash flood reports as well as intense rainfall observations for user-selectable time ranges and customizable geographic regions. Day 1 Day 2 Day 3. Wegman Day 1 threat area: www. With most instability focused above the mb layer, and in conjunction with poor boundary-layer dewpoints, the tornado risk may be somewhat lower than typically expected given shear profiles in the km layer. Spring maximum temperatures ranging upwards to degrees above normal will spread from the Midwest toward the Northeast to offer potential for some record values. At the surface, a low will deepen as it shifts east from MN toward southern Ontario. These tools are NOT operationally supported. This will setup a favorable lake effect snow regime, particularly downwind in the favored areas off Lake Superior and potentially Lake Erie and Lake Ontario. Prototype Specialized Excessive Rainfall Maps. Once linear forcing along the front increases in the z period, a line of storms is forecast to develop east from the Mid-MS Valley toward the Lower OH Valley during the nighttime hours. Archive Data. An interactive display of time series plots from GEFS ensemble members at a point.