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OceanStWx

Meteorologist
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Everything posted by OceanStWx

  1. The echoes didn't move much, I'm wondering if we got a bit of a standing wave there. The inversion did lower down to around 3000 ft by this morning.
  2. It's almost perfect honestly. Ceilings were about 3000 ft (915 m) at HFD. Wet snow falls at 2 m/s, dry at 0.5 m/s, so let's split the difference to 1 m/s. That's 915 seconds to reach the ground after it leaves the cloud. Mid level winds were about 40kt (21 m/s) overnight. 915 s * 21 m/s = 19215 m of drift due to the background wind (11 miles!).
  3. We have coops up in Coos County that are having trouble getting to their rain gauges because of all the snow/drifting.
  4. MWN has wind from 40 degrees and backing. It's not warming up from here.
  5. I didn't really hone in on SNE, but I saw some of the 3km precip algorithms had snow mixing back in across CT as the TROWAL rotated through.
  6. It's not even upslope yet! Under the TROWAL, dry slot moves overhead and it starts to get convective there.
  7. We had that exact view for about an hour at GYX. Just pasted up in the mountains right now.
  8. You know I thought I was getting overly aggressive when I cut your QPF to around 0.50" yesterday. May turn out okay.
  9. Nah, it flips back at some point. The question is do we have deep enough moisture for any appreciable accumulation.
  10. Crap lift and marginal surface temps are probably doing it. It doesn't appear to be warm air aloft that's the problem. And the snow totals are probably an over-correction on our part. Maybe needed a more uniform 1-2" in there for this morning's stuff.
  11. Here's a good visualization of the TROWAL Mitch was talking about. Now the TROWAL exists at many levels (it's a trough of warm air aloft after all), sloped on either side, but a good proxy is usually theta-e on the 700 mb surface. You can see the warmer theta-e temps curling cyclonically around the low (warm conveyor should peel off to the east remember). Heavy precip occurs on the west side of this axis, so I overlaid the regional radar to highlight that is in fact occurring.
  12. We don't TROWAL often in New England, so enjoy it folks.
  13. Almost certainly some aspect of mesoscale QPF GW there. I think shave 30% off the top as a starter for sure. The 3km NAM has a fairly well known orographic QPF bias. I know in western states it's 130% of reality on average. Would have to imagine similar around here.
  14. CC is washing out fast across SNE and NH right now.
  15. It's pretty cool actually that echoes over western Tolland County are moving east and echoes over eastern Tolland County are moving west.
  16. Mount Tolland upsloping from the SE currently? Almost right under the 850 low.
  17. Doppler velocity is starting to deform from the classic WAA look, so I think the CCB is starting to work its way through our area now.
  18. Man Gene on north may avoid any real significant dry slot and just keep on keeping on today. There may be a lull in lift, but it's not going to get any warmer aloft in NH than it is right now.
  19. Nah, I'm parking the car on the pond off the first hole at Spring Meadows and letting nature take its course from there.
  20. At the time we didn't think they were going to get much out of this morning's stuff (that's not working out), and then could just hoist an advisory for the upslope after. We didn't really have the area of 6+ amounts to bump anything but maybe northern Coos to a warning. It was definitely a low confidence forecast, but as Ekster has been saying I probably should've just hedged colder than models based on the pattern recognition.
  21. We're 31.6, but I think our thermometer runs a little cool.
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