Significant Event Outlook - Central to Eastern U.S.
Winter Storm to Bring Impacts from Snow, Ice, Flooding, and
Severe Thunderstorms Late this Week
Colleagues please see the below update from the NWS Operations Center on the upcoming severe weather.
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Central to Eastern U.S. Winter Storm to Bring Impacts from Snow, Ice, Flooding, and
Severe Thunderstorms Late this Week
- A strong storm is expected to develop along a cold front over the south-central U.S. late Wednesday shifting north along the front into the Northeast through Friday morning.
- Heavy snow, ice, and gusty winds will cause hazardous travel from the southern High Plains into the Great Lakes.
- Up to six inches of snow and a quarter inch of ice is forecast through 7 AM ET Friday.
- The first severe thunderstorm outbreak of the year is possible over the southern Plains and lower Mississippi Valley.
- The Storm Prediction Center (SPC) has issued Slight Risk (level 2 of 5) Convective Outlooks for Wednesday and Thursday.
- Heavy rainfall across the Midwest and Southeast could lead to areas of flash, urban, and river flooding.
- The Weather Prediction Center (WPC) has issued a Slight Risk (level 2 of 4) Excessive Rainfall Outlook for Thursday over the southern Appalachians.
- Flood Watches have been posted in the Midwest.
- The potential for minor to moderate riverine flooding exists through Saturday across portions of the Middle Mississippi, Ohio River Valley, Great Lakes Region, and Northeast in response to periods of heavy rainfall and snowmelt runoff.
- Weather Prediction Center has started to issue winter storm key messages and continues to lead collaboration calls with Regional Operations Centers (ROCs) and Weather Forecast Offices today.
- Central Region (CR) field offices from the Rockies to Plains to Great Lakes are providing virtual briefings to partners on the potential winter weather, heavy rain/flooding, and severe weather impacts.
- Eastern Region (ER) field offices from the Carolinas, Ohio River Valley, Mid-Atlantic, and Northeast are providing briefings to partners on a variety of potential impacts, including heavy rain, flooding, strong winds, severe thunderstorms, and wintry weather.
- WFOs Tulsa, Amarillo, Fort Worth, Norman, Little Rock, Memphis, Jackson, Shreveport, Lake Charles, New Orleans, Birmingham, Mobile, and Huntsville have been sending email briefings to partners regarding the potential for severe weather this week.
- WFOs Amarillo, Norman, and Tulsa also highlighted the fire weather and winter weather threats this week
- National Weather Service - Hazards
- NWS River Forecasts Near or Above Flood Stage
- NWS Weather Prediction Center
- NWS Storm Prediction Center
WPC National Forecast Chart for Thursday
Information in this report was provided by the Regional and National Centers.
Please note that some of the information contained in this report may be administratively sensitive, please limit forwarding to additional parties.
NWSOC Mission: The NWS Operations Center provides timely Impact-Based Decision Support Services to meet the evolving needs of NWS partners and stakeholders and supports agency readiness by proactively collaborating and facilitating the exchange of critical information, setting operational posture, and briefing leadership.
NWSOC Vision: A Weather-Ready Nation that makes informed and timely decisions based upon the best environmental and situational awareness information achieved through continuous and effective collaboration.
National Weather Service Operations Center
Silver Spring, MD
Normal Operating Hours: 6:00 a.m. - 10:00 p.m. Eastern Time daily