vortex95

Reports from ME/NH/VT absolutely spectacular LTG show for April this evening, and still going strong Downeast ME as I type this! Find me an event in April w/ more CGs in several hours in New England! I checked the mid-level lapse rates plots on the NAM, nothing special, but that is 700-500. If you look at 750-600 on the soundings, they were as high as 7.0 C/km. so there you go. MUCAPE ahead of the SQLN were as high 1500, most of it elevated. 0-6 km shear 50-60 kt. Even CoastalWx *has* to be impressed! He recalls the crazy LTG shows that overnight in Feb 2016 RI/SE MA? Basically a ring of fire in April this week. Strong ridge SEUS and direct feed flow straight from Plains to put an EML into NEUS. BDF?, no problem!

Had nice white VIL core on Radarscope for two scans. Usually, that is enough for a SVR.

Scott PT?

It is. Best week for tstms in April I can recall in SNE w/ more on the way.

Conversely, from mid June to mid August 2008 (I think that was the year), we could not get clean CFROPA at all in the NEUS, and the tstm action was pretty sweet!

"My lawn is thirsty"

Some kind of mesolow. No wonder it sustained itself so well overnight. Any rotation, miso/meso/synoptic, is a *good* thing for convection! Did Scott "WE THUNDER" in Weymouth? He told me in PM that he is all excited for tstms this summer b/c of impending super El Nino. I told him, "well, 1997 and 1998 svr wx seasons in NEUS were quite good, spinners and more!"

Not bad for April w/ the storms in western MA/CT currently. HRRR 18 and 00z insisting isolated long-tracked supercell NY into NH later Thu. Then a :sun destroyed itself" day Fri w/ RW/TRW peppered all over the place by noon. Best tstm week in April for New England I can recall offhand. But somehow Scott will find a way to say MEH! LOL. SPC 2% tor western section Thu. Only 3 confirmed spinners in April in New England on record. Path Path Time(EST) Width Length --------- ------ ------ MA APR 15, 1925 1700 0k 0inj unk unk F1 HAMPDEN - Brief tornado in Chicopee. One house and five garages destroyed. Damage $50,000. CT APR 26, 1961 1115 0k 0inj unk unk F1 TOLLAND - Two silo roofs destroyed in Ellington. CT APR 21, 2021 1349 0k 0inj 30y 1.0m EF0 LITCHFIELD - Sporadic tree damage in Kent. Also in 2021, we have our first confirmed tor in Mar in New England. VT MAR 26, 2021 1240 0k 2inj 75y 0.7m EF1 ADDISON - Tornado associated with bow echo segment moved through Middlebury. Many trees downed and some structural and vehicle damage.

Thrilled for the BDF Wed?

And then we had accumulating snow a month later from a 500 that was kinda MEH. Snow the third week in May in SNE? You need quite the anomaly (you'd think) like a MONSTA 5-contour cut off at 500 that happened May 9-10, 1977 or something like this in 1967. 5/25 A slow moving nor'easter battered New England with high winds, heavy rain, and record late season snow on this day and into the 26th. Winds 70 to 90 mph in gusts occurred along the coast. Over 7 inches of rain fell at Nantucket, Massachusetts with 6.57 inches falling in 24 hours to set a new 24 hour rainfall record. Severe damage occurred along the coast from very high tides. 24.9 inches of snow fell at Mount Washington, New Hampshire to set a new May snowfall record. 10 inches of snow fell near Keene, New Hampshire and 6 inches was recorded at Dublin, New Hampshire.

Or BDF w/ 45 and +DZFG!

Tubular vortex action near Logan Airport: https://www.wcvb.com/article/unusual-boston-waterspout-video-pleasure-bay/70952510 The cause of these make sense (wingtip vortices from aircraft). See here: https://www.youtube.com/watch?v=ViKYFsN3p24 They are not dust devils over water since it was cloudy and early in the day and these are too small in diameter really for conventional waterspouts. I've seen videos before on small lakes under similar conditions, and I said then "it's too small for a true waterspout!" So this explains it.

-6 at Estcourt Station ME!

Powder blizzard in April, quite a storm. And the cold behind it? -25 C at 850. BOS high of 25 the day after the storm was colder than the previous record *low* temp for the day, despite full sun.

Scott would be happy w/ this from 39 years ago. Vicariously he would be impressed! 4/3/1987 A large, slow moving low pressure produced very heavy snows over the Appalachian Region starting on the 3rd and continuing into the 5th. 60 inches fell at Newfound Gap in western North Carolina -- the largest single storm snowfall in the state's history. Up to 36 inches was reported in southeastern Kentucky. The total of 25 inches at Charleston, West Virginia easily surpassed its previous record for the entire month of April of 5.9 inches. The 20.6 inch total at Akron, Ohio established an all-time record for that location. Interstate 40 was closed by snow for the first time since it was opened 20 years ago. This storm also dumped heavy snow in central and northeastern Alabama. Never before had a snowfall blanketed Alabama in April. 10 inches fell at Valley Head, 9 inches piled up at Fort Payne, and Birmingham recorded 6 inches. Lightning and thunder accompanied the snow in some areas while snow flurries fell as far south as Mobile. This was the first snow ever reported in the month of April in Mobile since records began in 1872. The storm became known unofficially as the "Dogwood Snowstorm" in the state. This same storm resulted in big flooding in New England. I recall the Merrimack River at ULowell ragin'! 4/4/1987 New England was in the middle of its second heavy rainstorm in 5 days. This was the same storm that produced record snows in the Appalachians. This storm dumped 4 to 7 inches of rain over the area and this, combined with snow melt and rivers already at bankfull, produced record flooding, especially in Maine. 2300 homes were flooded in Maine with 215 totally destroyed. Record water levels were reached at many dams. Damage in the state alone reached 100 million dollars.