Winter storm watches, warnings, and advisories are issued by local National Weather Service Forecast offices.
Winter weather advisory -- When a significant winter storm or hazardous winter weather is occurring, imminent, and is an inconvenience.
Winter storm watch -- A significant winter weather (i.e., heavy snow, heavy sleet, significant freezing rain, or a combination of events) is expected, but not imminent, for the watch area; provides 12 to 36 hours notice of the possibility of severe winter weather.
Winter storm warning -- A significant winter storm or hazardous winter weather is occurring, imminent, or likely, and is a threat to life and property.
Blizzard warning -- Winds that are at least 35 mph or greater, blowing snow that will frequently reduce visibility to 1/4 mile or less for at least three hours, and dangerous wind chills are expected in the warning area.
Wind chill index -- The calculation of temperature that takes into consideration the effects of wind and temperature on the human body. This is not the actual air temperature, but what it feels like to the average person. This wind chill chart shows the difference between actual air temperature and perceived temperature, and the amount of time until frostbite occurs.
Thursday, February 13, 2014, 2:21 PM EST
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Herndon, VA
County: Fairfax NWS Zone: VAZ053 (Fairfax) 2:21 PM EST (19:21 GMT) |
77.3873 W
38.9812 N Thu, Feb 13, 2014 |
| Severe Weather Statements | |||
| Type | Issue Time | Expire Time | Expires in |
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Thu, Feb 13, 1:00pm EST | Thu, Feb 13, 6:00pm EST | 3 hr, 38 min |
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Thu, Feb 13, 12:59pm EST | Thu, Feb 13, 6:00pm EST | 3 hr, 38 min |
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Thu, Feb 13, 2:15pm EST | Thu, Feb 13, 10:15pm EST | 7 hr, 53 min |
| Current Conditions | |||||||||||||||||||||||||||||||||||||
Observation for Dulles Airport, Chantilly, VA as of 1:52PM (29 min ago)
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| National Weather Service Forecast | |
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| This afternoon | Sleet, freezing rain, snow and rain. Additional snow and sleet accumulation around an inch. Highs in the lower 30s. North winds around 15 mph with gusts up to 30 mph. Chance of precipitation near 100 percent. |
| Tonight | Snow. Total snow accumulation of 10 to 14 inches. Lows in the mid 20s. Northwest winds 15 to 20 mph with gusts up to 30 mph. Chance of snow near 100 percent. |
| Friday | Mostly sunny. Highs in the upper 30s. Southwest winds 5 to 10 mph. |
| Friday night | Cloudy. A chance of snow and rain showers in the evening, then snow showers after midnight. Lows in the upper 20s. West winds around 5 mph, becoming north after midnight. Chance of precipitation 90 percent. |
| Saturday | Mostly sunny. A chance of snow showers in the morning. Highs in the lower 30s. Northwest winds 10 to 15 mph with gusts up to 25 mph. Chance of snow 30 percent. |
| Saturday night | Mostly cloudy. Lows around 20. |
| Sunday | Partly sunny. Highs in the lower 30s. |
| Sunday night | Mostly clear. Lows 15 to 20. |
| Washingtons birthday | Partly sunny. Highs in the upper 30s. |
| Monday night | Mostly cloudy with a chance of rain and snow showers. Lows in the lower 30s. Chance of precipitation 30 percent. |
| Tuesday | Partly sunny. Highs in the upper 40s. |
| Tuesday night | Partly cloudy. Lows in the upper 20s. |
| Wednesday | Mostly sunny. Highs in the lower 50s. |
| Area Conditions | Eng | |||||||
| Dist | Stn | City | Temp | Dew | Cond | Wind | Vis | Age |
| 5 mi | KIAD | Chantilly, VA | Light Drizzle, Mist | 29 | ||||
| 12 mi | KJYO | Leesburg, VA | Unknown Precipitation | 26 | ||||
| 21 mi | KDCA | Arlington, VA | Light Drizzle, Mist | 29 | ||||
| 21 mi | KDAA | Fort Belvoir, VA | Light Rain, Mist | 13 | ||||
| 30 mi | KFDK | Frederick, MD | Light Rain | 36 | ||||
| 31 mi | KADW | Andrews Air Force Base, MD | Light Rain, Mist | 23 | ||||
| 34 mi | KFME | Laurel, MD | Cloudy | 21 | ||||
| 34 mi | KNYG | MCB Quantico, VA | Light Rain, Mist | 17 | ||||
| 40 mi | KCJR | Elkwood, VA | Mist | 26 | ||||
| 40 mi | KBWI | Glen Burnie, MD | Light Drizzle, Mist | 27 | ||||
| 40 mi | KRMN | Fredericksburg, VA | Mist | 26 | ||||
| 43 mi | KOKV | Winchester, VA | Light Snow | 6 | ||||
| 43 mi | KMRB | Martinsburg, WV | Light Snow | 28 | ||||
| 46 mi | KDMH | Baltimore, MD | - | 27 | ||||
| 49 mi | KEZF | Fredericksburg, VA | Mist | 26 | ||||
Thursday, February 13, 2014, 2:26 PM EST
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Virginia
2:26 PM EST (19:26 GMT) |
79.4671 W
38.0044 N |
| Severe | Temp | Dew Point | Feels Like | Humidity | Pressure | Wind Speed | Wind Dir |
| Severe Weather Statements | |||
| Type | Areas Affected | ||
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Lee, Russell, Scott, Washington, Wise | ||
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Buchanan, Dickenson | ||
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Caroline, Fluvanna, Goochland, Hanover, Louisa | ||
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Amelia, Charles City, Chesterfield, Cumberland, Dinwiddie, Henrico, New Kent, Nottoway, Powhatan, Prince Edward, Prince George | ||
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Greensville, Sussex | ||
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Essex, King William, King and Queen, Lancaster, Northumberland, Richmond, Westmoreland | ||
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Brunswick, Lunenburg, Mecklenburg | ||
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Tazewell | ||
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Alleghany, Amherst, Appomattox, Bath, Bedford, Bland, Botetourt, Buckingham, Campbell, Carroll, Craig, Floyd, Franklin, Giles, Grayson, Montgomery, Patrick, Pulaski, Roanoke, Rockbridge, Smyth, Wythe | ||
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Charlotte, Halifax, Henry, Pittsylvania | ||
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Arlington/Falls Church/Alexandri, King George | ||
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Albemarle, Augusta, Culpeper, Eastern Highland, Greene, Madison, Nelson, Orange, Page, Rappahannock, Rockingham, Shenandoah, Spotsylvania, Western Highland | ||
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Clarke, Fairfax, Frederick, Loudoun, Northern Fauquier, Prince William/Manassas/Manassas, Southern Fauquier, Stafford, Warren | ||
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Albemarle, Arlington/Falls Church/Alexandri, Augusta, Clarke, Culpeper, Eastern Highland, Fairfax, Frederick, Greene, King George, Loudoun, Madison, Nelson, Northern Fauquier, Orange, Page, Prince William/Manassas/Manassas, Rappahannock, Rockingham, Shenandoah, Southern Fauquier, Spotsylvania, Stafford, Warren, Western Highland | ||
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Albemarle, Arlington/Falls Church/Alexandri, Augusta, Clarke, Culpeper, Eastern Highland, Fairfax, Frederick, Greene, King George, Loudoun, Madison, Nelson, Northern Fauquier, Orange, Page, Prince William/Manassas/Manassas, Rappahannock, Rockingham, Shenandoah, Southern Fauquier, Spotsylvania, Stafford, Warren, Western Highland | ||
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Bedford, Botetourt, Floyd, Franklin, Henry, Patrick, Pittsylvania, Roanoke | ||
