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high risk

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About high risk

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  • Four Letter Airport Code For Weather Obs (Such as KDCA)
    KBWI
  • Gender
    Male
  • Location:
    North Laurel, MD

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  1. high risk
    Right. Instability is important, but Precipitable Water is a better driver of flooding rains than CAPE.
  2. high risk
    several CAMs fire storms along the sea breeze in Delaware by early/mid afternoon
  3. high risk
    There were several lightning strikes this evening on outflow boundaries, with no rainfall or other nearby lightning, so it's not surprising that people were caught off guard.
  4. high risk
    NAM Nest is doing its usual thing of having low-level dew points that are too high, which inflates the CAPE. That said, even though that solution has the most organized convection of the CAMs, most do show at least a few storms in the area later today. Tomorrow looks like the bigger deal. The HRRR is an outlier with its *low* dew points - most CAMs show widespread heavy storms in the area towards dinner time.
  5. high risk
    some significant changes so far in the 12Z suite of models: several CAMs now show a batch of heavy showers moving across a good chunk of northern VA and northwestern MD during Sunday afternoon. The HRRR even goes so far as to make it a full Sunday afternoon washout for the metro areas. Will be interesting to see if this is a one-cycle glitch for the guidance or if it's figuring out now that Sunday won't be nearly as nice of a day as originally expected.
  6. high risk
    Got 0.26" just south of you. I posted in the Obs thread that the thunder really started cranking after the line passed, and you could see it in the lightning data. There were many strikes well behind the rainfall, including one here that was maybe 75 yards away and took out our power for 5 hours
  7. high risk
    Slight risk today includes DC at the northern edge. Consistent with that, HRRR definitely likes the area south of town.
  8. high risk
    This is an excellent discussion. The GFS hasn't caught on to this threat yet, but the ECMWF and Canadian have.
  9. high risk
    One other odd aspect of the storm yesterday: there was no lightning as the line moved through southern Howard, but it started cranking out bolts on the back side of the storm as it moved into PG. There were numerous lightning strikes in Howard, eastern Montgomery, and western PG well after the rain had ended, including one that was way, way too close here and knocked out our power for 5 hours.
  10. high risk
    Today was a total kick in the teeth.
  11. high risk
    Good point, but I *think* that it only affects the timing and not whether we get storms. If the line remains intact, I think it drives through the area in the early afternoon. If not, we wait for cells to fire to our west and move east during the later afternoon. None of the CAMs fail to move storms through the area at some point today, although there are admittedly disagreements in the amount of coverage.
  12. high risk
    I feel even better after looking at the 00Z suite, especially for those south of I-70.
  13. high risk
    Right, and we have respectable shear too. My concern remains, however, that several CAMs have a dying line arriving during the morning. Most of the solutions still allow us to get hot and generate new strong storms on the outflow, but the coverage isn't what I would expect to see in the setup, and we all know that this type of scenario fails here with great ease. I'm still optimistic (honestly, I just want some rain!), but it's a cautious optimism.
  14. high risk
    I don't see an active photos thread, so I'll put it here and apologize if I screwed up, but the sky ahead of that dying line yesterday evening was glorious:
  15. high risk
    Monday definitely has some really good SVR potential here. CAPE is extremely high in several models, and deep layer shear will be more than adequate. I'd say that we could get a day 2 ENH, but the timing on a few solutions might preclude that. The idea of a dying line of storms in the morning rejuvenating in the early afternoon could still work fine, but that scenario finds a way to screw us more often than it should.
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