arlwx

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  1. IAD reported at 6:52 an intrahour low of 17.
  2. My swag: BWI: 18 DCA: 15 IAD: 21 RIC: 10 Tiebreaker (SBY or LYH): SBY 8 ((and hoping for much less))
  3. WTOP 103.5 is reporting on the Chain Bridge water main break. Arlington County schools and offices are closed. The break affects much of Arlington County and NW DC. Arlington has announced a boil water advisory.
  4. Have you dug out your parkas out of the attic/elsewhere yet? I have...
  5. It'll be close. Right now NWS forecasts DCA to hit 33 at midnight, 2 at 3 am on 9 Nov.
  6. If I had gone with my guesstimate of climo…. BWI//IAD Halloween DCA/RIC Veterans Day I might be slightly close.
  7. Prepare to defrost or scrape this morning. Although DCA hit only 39, Andrews AFB reported 32 around 6 am.
  8. As of 554 am, RIC hit 33 degrees. Let's see what the 754 6-hour measurement shows.
  9. GFS is claiming next freeze chances for DCA and RIC start next weekend, with a strong likelihood of freezing by the middle of the following week. That said, it IS the GFS...
  10. The 6 hour obs list at 7:54 said BWI was max 36, min 32.
  11. Dulles hit 32 on 2 Nov at 3:52 am. BWI was at 33. The DCA heat island was at 40. Richmond at 37.
  12. LWX just posted freeze watches for early Saturday, Including DC. ((I don't think DCA will freeze)). URGENT - WEATHER MESSAGE National Weather Service Baltimore MD/Washington DC 407 AM EDT Fri Nov 1 2019 District of Columbia-Frederick MD-Carroll-Northern Baltimore- Southern Baltimore-Prince Georges-Anne Arundel-Calvert- Northwest Montgomery-Central and Southeast Montgomery- Northwest Howard-Central and Southeast Howard-Northwest Harford- Southeast Harford-Fairfax-Arlington/Falls Church/Alexandria- Western Loudoun-Eastern Loudoun- Including the cities of Washington, Frederick, Ballenger Creek, Eldersburg, Westminster, Reisterstown, Cockeysville, Baltimore, Bowie, Suitland-Silver Hill, Clinton, College Park, Greenbelt, Laurel, Camp Springs, Glen Burnie, Annapolis, Severn, South Gate, Severna Park, Arnold, Odenton, Chesapeake Beach, Huntingtown, Dunkirk, North Beach, Lusby, Prince Frederick, Germantown, Damascus, Bethesda, Rockville, Gaithersburg, Silver Spring, Lisbon, Columbia, Ellicott City, Jarrettsville, Aberdeen, Reston, Herndon, Annandale, Centreville, Chantilly, McLean, Franconia, Arlington, Alexandria, Falls Church, Purcellville, Leesburg, Ashburn, and Sterling 407 AM EDT Fri Nov 1 2019 ...FREEZE WATCH IN EFFECT FROM LATE TONIGHT THROUGH SATURDAY MORNING... ...WIND ADVISORY HAS EXPIRED... * WHAT...Sub-freezing temperatures as low as 30 possible. * WHERE...The District of Columbia; northern, central, and southern Maryland; and northern Virginia. * WHEN...From late tonight through Saturday morning. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. * ADDITIONAL DETAILS...Winds gusting up to 30 mph will be likely this morning. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. To prevent freezing and possible bursting of outdoor water pipes they should be wrapped, drained, or allowed to drip slowly. Those that have in-ground sprinkler systems should drain them and cover above- ground pipes to protect them from freezing. URGENT - WEATHER MESSAGE National Weather Service Baltimore MD/Washington DC 407 AM EDT Fri Nov 1 2019 Charles-St. Marys-Nelson-Albemarle- Prince William/Manassas/Manassas Park-Stafford-Spotsylvania- King George- Including the cities of St. Charles, Waldorf, Lexington Park, California, Lovingston, Charlottesville, Dale City, Manassas, Woodbridge, Lake Ridge, Montclair, Falmouth, Fredericksburg, and Dahlgren 407 AM EDT Fri Nov 1 2019 ...FREEZE WATCH IN EFFECT FROM LATE TONIGHT THROUGH SATURDAY MORNING... * WHAT...Sub-freezing temperatures as low as 33 possible. * WHERE...In Maryland, Charles and St. Marys Counties. In Virginia, Nelson, Albemarle, Prince William/Manassas/Manassas Park, Stafford, Spotsylvania and King George Counties. * WHEN...From late tonight through Saturday morning. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. (snip)
  13. And from AKQ: (snip) .SHORT TERM /6 AM THIS MORNING THROUGH SUNDAY/... As of 345 PM EDT Thursday... Sunny and much cooler Fri with highs in the mid to upper 50s. Around 60 is possible near the coast. Expect breezy conditions in the morning, but winds will decrease by afternoon as the high builds in and the pres gradient relaxes. Cool high pres will bring the coldest night of the season to date Fri night/Sat morning. Lows around freezing (well) inland...m-u30s central to lower to mid 40s along the coast. Potential frost/freeze headlines will be contemplated by proceeding shifts as we get closer. Continued cool and dry on Sat w/ highs in the upper 50s to lowers 60s. Another weak front pushed south late Sat night bringing another sot of cool air and colder temps Sunday with high only in the low to mid 50s. && .LONG TERM /SUNDAY NIGHT THROUGH THURSDAY/... As of 250 PM EDT Thursday... Cool high pressure becomes centered over the area Sunday evening- Sunday night before moving offshore by Mon aftn. Sun night looks like the coldest night of the season (so far), with lows in the low- mid 30s inland/upper 30s-mid 40s close to the immediate coast. Will continue to monitor the possibility of a freeze (mainly W of I-95).
  14. From the latest LWX forecast: (snip) As winds subside tonight, radiational cooling will be excellent. With dewpoints in the 20s-lower 30s, stage set for a possible freeze everywhere except urban downtowns/near the Bay/Potomac. Will issue a Freeze Watch for area where growing season continues as forecast lows at or below freezing areawide except as noted above. && .SHORT TERM /SATURDAY THROUGH SUNDAY NIGHT/... High pressure this weekend, with a reinforcing trough axis/surface cold front Saturday night. Will be struggling to reach 50 degrees Sunday. If the growing season doesnt end by Saturday morning, Sunday night`s lows will likely do it. There could also be some upslope snow showers Saturday night-Sunday morning as well.