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batmanbrad

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  1. batmanbrad
    yeah sitting here near Laytonsville wondering what the storms near Poolesville heading for the Germantown area are going to do when they intersect those outflow boundaries nearby.
  2. batmanbrad
    Looks like that southward-moving outflow boundary generated by the earlier storms north o f I-70 has or is about to reach me here in the area between Gaithersburg/Montgomery Village and Laytonsville, per COD radar loop. Wondering like others whether the approaching storm line from the west will have a chance to interact with it.
  3. batmanbrad
    Yes, Andy "Woody!" Woodcock, he was a trip. I occasionally go to other WFO's to check out their AFD's - some can get very wordy/technical, I especially remember the Taunton (now Boston/Norton) office when there would be a coastal storm in winter or a tropical system in summer, the discussion was a bit like "War and Peace"!
  4. batmanbrad
    According to https://www.allacronyms.com/ARI/weather_forecast ARI stands for Accelerated Research Institute
  5. batmanbrad
    WPC just placed a tiny bullseye of moderate risk for excessive rainfall right over the DC metro area: ...Ohio Valley, Central Appalachians, Mid-Atlantic 1930 UTC Update -- Per collaboration with WFO LWX, have hoisted a Moderate Risk area over parts of the Balt-Wash area for more widespread convection later tonight and into tomorrow morning (early portion of the Day 2 ERO period). There continues to be a multi-model heavy rainfall signal, especially from the CAMs, though the 18Z HRRR has broken a bit from the consensus by now showing the max QPF footprint a little farther south into Southern MD and the Northern Neck of VA. Will continue to keep an eye on observational and mesoanalysis trends this evening; for now have aligned the Moderate Risk area up with the general multi-model consensus, which also incorporates the more elevated 1 and 3 hour QPF exceedance probabilities per the 12Z HREF.
  6. batmanbrad
    fairly heavy rain and occasional lightning/thunder here in Gaithersburg (east side, just west of Laytonsville). Definitely looks like some of this recent development here in mid county could be due to interactions with some of those outflow boundaries that dropped south from the earlier storms near Frederick/I-70.
  7. batmanbrad
    I'm up here near Laytonsville and I can hear rumbles of thunder - distant/faint, but I hear them nonetheless. Don't see anything close on radar, can those actually be from that cell downcounty? Seems like a rather large distance between it and me.
  8. batmanbrad
    cell near Potomac/Rockville has 1.5" hail tag per RadarScope
  9. batmanbrad
    And a partridge in a pear tree?
  10. batmanbrad
    we now have slight risk for both severe wx and flash flooding for tomorrow (the latter per WPC): ...Southern Tier of New York State into the Mid-Atlantic... A slight risk area was added for potential of training convection in a north to south direction along and to the east of the well defined stationary front expected to lie north-south from central New York State, south into central Pennsylvania, central Maryland into northern Virginia. PW values in the vicinity of this front will be in the 1.5 to 2+ standard deviation above the mean range, with hi res model consensus for convection to enhance and potentially train from north to south from Wednesday afternoon into Wednesday evening across these areas. The slight risk area was drawn to best fit the high HREF neighborhood probabilities for 1 and 2"+ amounts in the 1200 UTC Wednesday to 0000 UTC Thursday period, 40-90 and 30-80% respectively. The slight risk was extended a bit farther south of the highest 12 hour probabilities to cover the urban areas from Baltimore to DC.
  11. batmanbrad
    the SPC day 1 outlook scheduled to be released at 12:30PM is delayed (by 1/2 hour so far), wonder if that means they are waiting on more model data.
  12. batmanbrad
    Radarscope indicates a TVS signature on that LaPlata cell...
  13. batmanbrad
    the flood watches recently posted for several counties in MD and VA do indicate that the overnight heavy rain potential should be taken more seriously than the severe wx possibilities...
  14. batmanbrad
    sheesh, I don't know this even qualifies for a "pity meso": https://www.spc.noaa.gov/products/md/md1091.html
  15. batmanbrad
    That earlier squiggly outflow boundary that was heading north from the earlier storms either has or is about to intersect that Montgomery cell.
  16. batmanbrad
    Looks on Radarscope as if that cell is making a bit of a right turn, away from Germantown/Gaithersburg and more towards Derwood/Rockville.
  17. batmanbrad
    WPC on board with flood potential tomorrow:
  18. batmanbrad
    that is a huge watch box!
  19. batmanbrad
    I know this is not the New England section, but if anybody wants to see a very long technical discussion about the storm's potential impacts for up that way (especially eastern MA and RI), check out the afternoon AFD from BOX. My sister lives up in the Boston burbs and it looks like they will really get whacked there. Some pretty impressive totals being painted, plus serious wind/power outage potential - all this without much if any blocking!
  20. batmanbrad
    Hopefully not on a Radioshack Trash 80
  21. batmanbrad
    With all that blue on that map near Richmond, maybe DT will endorse it?
  22. batmanbrad
    don't know if this was posted already but the morning AFD from LWX had this from their forecaster noting possible need to up snow totals: .NEAR TERM /THROUGH TONIGHT/... I performed a cursory analysis of current conditions this morning and I found that temps are running a few degrees cooler than forecast with dewpoints in the single digits. Up stream observations in NC and southern VA suggests that snow is over performing. I have adjusted my snow ratios this morning to account for the well below freezing layer ahead of the precipitation which should allow for higher snow rates. Initial onset of precipitation is on track this morning and snow should fluffy to start before switching over to wet snow as the layer starts to warm and transitions over to a wintry mix for most areas along and east of I-81. I will continue to monitor current conditions to see if I need to up snow totals. It wouldn`t surprise me if we get higher snow totals further eastward than expected due to extremely cool air mass ahead of this system.
  23. batmanbrad
    or he did see it, and decided to toss it.
  24. batmanbrad
    CWG just posted on FB that there should be a briefing on the upcoming storm (probably including Wes again) coming out about 2:30PM.
  25. batmanbrad
    wow 983mb right over NYC at 144, winter 'cane territory there. Stalls a bit then takes off NE again.
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