Back-to-back powerful Pacific storm systems to impact the Pacific Northwest and northern California through the end of this week with heavy rain, flooding, strong winds, and higher elevation mountain snow. A strong, long-duration atmospheric river will accompany the Pacific storms, bringing excessive rainfall and flash flooding to southwest Oregon and northwest California through the week. Read More >
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Latest Emergency Manager's Briefing (pdf) Latest Briefing Created: Wed Nov 20 16:10:02 EST 2024 |
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Rainfall and Flood Threat Briefing
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Precipitation Forecasts | ||||
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WORST CASE | |||
0-72 HR Worst Case PRECIP Amounts (Model Based) | |||
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Thunderstorm Threat Briefing
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Days 4-7 Thunderstorm Outlooks | |||
Current Watches |
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SPC Day 2 Thunderstorm Outlook Discussion |
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SPC Day 3 Outlook Narrative | SPC Day 4-8 Outlook Narrative |
Winter Weather Threat Briefing
Day 1 Snow Forecast | Day 2 Snow Forecast | Day 3 Snow Forecast | |
Day 1-3 Snow Totals | Worst Case Forecast 0-72 hour Snowfall | Winter Storm Severity Index |
Peak Snow Rate (every 6 hours) in in/hr | ||||||
0-6HR Peak Snow Rate (in/hr) | 6-12HR Peak Snow Rate (in/hr) | 12-18HR Peak Snow Rate (in/hr) | 18-24HR Peak Snow Rate (in/hr) | 24-30HR Peak Snow Rate (in/hr) | ||
30 Hour Forecast Snow Amounts (6 Hour Periods) | ||||||
0 to 6 Hours | 6 to 12 Hours | 12 to 18 Hours | 18 to 24 Hours | 24 to 30 Hours | 30 to 36 Hours | |
Day 1 Ice Accumulation Forecast | Day 2 Ice Accumulation Forecast | Day 3 Ice Accumulation Forecast | Day 1-3 Ice Totals |
30 Hour Forecast Ice Accumulation (6 Hour Periods) | ||||||
0 to 6 Hours | 6 to 12 Hours | 12 to 18 Hours | 18 to 24 Hours | 24 to 30 Hours | 30 to 36 Hours | |
Day 4 Experimental Winter Weather Outlook | Day 5 Experimental Winter Weather Outlook | Day 6 Experimental Winter Weather Outlook | Day 7 Experimental Winter Weather Outlook |
Snow Threat: 3-7 Days From Now | ||||||
Day 3 | Day 4 | Day 5 | Day 6 | Day 7 | ||
Ice Threat: 3-7 Days From Now | ||||||
Day 3 | Day 4 | Day 5 | Day 6 | Day 7 | ||
Long Range Outlook Briefing
Days 3-7 Hazards Outlook (WPC) |
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6-10 Day Temperature Outlook (CPC) | 6-10 Day Precipitation Outlook (CPC) |
8-14 Day Temperature Outlook (CPC) | 8-14 Day Precipitation Outlook (CPC) |
**Experimental** Week 3-4 Temperature Outlook (CPC) | **Experimental** Week 3-4 Precipitation Outlook (CPC) |
One Month Temperature Outlook (CPC) | One Month Precipitation Outlook (CPC) |
Three Month Temperature Outlook (CPC) | Three Month Precipitation Outlook (CPC) |
Drought and Fire Weather Threat Briefing
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Day 1 Min RH Forecast | Day 2 Min RH Forecast | Day 3 Min RH Forecast |
Day 1 Max Wind Gust | Day 2 Max Wind Gust | Day 3 Max Wind Gust |
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Seasonal Drought Outlook | NIFC Significant Fire Potential Outlook |
Cold Threat Briefing?
Day 1 Excessive Cold Risk | Day 2 Excessive Cold Risk | Day 3 Excessive Cold Risk |
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0-72 HR COLDEST WIND CHILL TEMPS |
Day 1 Max Temp Forecast | Day 2 Max Temp Forecast | Day 3 Max Temp Forecast |
Wind Threat Briefing
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3 Hourly Wind Speed & Direction Forecasts |
3 Hourly Wind Gusts |
Thunderstorm, Tornado and Lightning Safety
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Winter Weather Safety
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NOAA Weather Radio
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Hurricane Safety and Preparedness
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Flooding Safety
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Heat Safety
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Miscellaneous Safety and Preparedness
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Additional NWS Preparedness Web Pages
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More Useful Resources
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Marine Product/Threat Briefing?
Marine Observations as of 3:00 AM EST Thu Nov 21 2024 | |||||||
Location | UTC TIME | Air Temp (°F) |
Water Temp (°F) |
Wind (DIR/SP/Gust) |
Pres (mb) |
Wave&Swell (HT/PER) |
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Baltimore Harbor | 0730 | 47 | 58 | N/A | |||
Tolchester Beach | 0730 | 47 | 1005.4 | ||||
Francis S Key Br | 0730 | 47 | 1005.2 | ||||
Cambridge MD | 0730 | 49 | 55 | 1004.7 | |||
Thomas Pt, MD | 0800 | 46 | 300/ 16/ 20 | 1006.3 | |||
Gooses Reef, MD | 0754 | 45 | 59 | 340/ 21/ 29 | N/A | 2 | |
Cove Pt, MD | 0730 | 48 | 1005.2 | ||||
Piney Pt, MD | 0712 | 340/ 23/ 26 | N/A | ||||
Bishops Head, MD | 0730 | 48 | 56 | 1004.4 | |||
Potomac, MD | N/A | N/A | N/A | N/A | N/A | N/A | N/A |
Solomons Island, MD | N/A | N/A | N/A | N/A | N/A | N/A | N/A |
Lewisetta, VA | 0730 | 48 | 57 | 1005.3 | |||
Dahlgren, VA | 0730 | 46 | 58 | 1005.7 | |||
Rappahannock Light | 0730 | 1005.5 | |||||
StingRay Pt | 0754 | 49 | 330/ 27/ 41 | N/A | 3 | ||
Yorktown, VA | 0730 | 50 | 60 | 1005.9 | |||
Buoy 44072 York | 0748 | 48 | 59 | 330/ 29/ 39 | N/A | ||
Jamestown, VA | 0748 | 49 | 60 | 330/ 21/ 29 | N/A | ||
Willouby Stn, VA | 0730 | 50 | 1005.3 | ||||
Dominion Term Stn | 0730 | 51 | 1005.4 | ||||
Money Pt | 0730 | 51 | 62 | 1004.6 | |||
Sewells Pt | 0730 | 51 | 60 | 1004.7 | |||
Kiptopeke, VA | 0730 | 52 | 59 | 1004.8 | |||
Ches Bay Bridge | 0730 | 51 | 1003.1 | ||||
Cape Henry,VA | 0730 | 52 | 1004.6 | ||||
Lewes, DE | 0730 | 51 | 56 | 1003.0 | |||
Buoy 44009 | 0710 | 54 | 60 | 320/ 33/ 43 | 1001.0 | ||
Brandywine Light | 0730 | 50 | 1002.2 | ||||
Ocean City Inlet | 0730 | 51 | 58 | 1000.4 | |||
Wachapreague, VA | 0730 | 49 | 58 | 1003.0 | |||
Wallops Island Buoy | 0756 | 60 | N/A | 4 | |||
Cape Henry Buoy | 0756 | 61 | N/A | 6 | |||
Cape Charles Buoy | N/A | N/A | N/A | N/A | N/A | N/A | N/A |
1st Landing Buoy | 0754 | 47 | 330/ 27/ 37 | N/A | 7 | ||
Buoy 44014 | 0710 | 56 | 62 | 330/ 29/ 39 | 1001.8 | ||
Duck Pier | N/A | N/A | N/A | N/A | N/A | N/A | N/A |
Buoy 44056 | N/A | N/A | N/A | N/A | N/A | N/A | N/A |
Buoy 44100 | 0730 | 55 | 63 | 1001.7 | |||
Oregon Inlet, NC | 0730 | 56 | 63 | 1002.2 | |||
Buoy 41025 | 0710 | 71 | 290/ 19/ 23 | 1001.2 | |||
Cape Lookout, NC | 0800 | 60 | 320/ 25/ 30 | 1004.4 |
DAILY MARINE THREAT
TODAY | TOMORROW | DAY 3 | DAY 4 | DAY 5 |
MARINE WAVE/WIND FORECASTS
Max Wave Height Day 1 | Max Wave Height Day 2 | Max Wave Height Day 3 | Max Wave Height 0-72 HR |
Max Wind Gust Day 1 | Max Wind Gust Day 2 | Max Wind Gust Day 3 | Max Wind Gust 0-72 HR |
HOURLY WEATHER GRAPHS
Tangier Island | Wolf Trap | Thimble Shoal | Mouth Of Chesapeake Bay | Jamestown / Scotland Ferry |
Lower James River (Hampton Roads) | Fenwick Island | Offshore Wallops Island | Offshore Cape Henry | Offshore Corolla | Currituck Sound |
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Complete Wind Gust Likelihood and Probabilities Page |
LIKELIHOOD OF WIND GUSTS
25 KT LIKELYHOOD | 34 KT LIKELYHOOD | 43 KT LIKELYHOOD | 48 KT LIKELYHOOD | FORECAST WIND GUST | HIGH END WIND GUST |
RIP CURRENT FORECAST (MAY-SEPT) |