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Everything posted by klw
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July has arrived ... the Meteorologically defined mid summer month
klw replied to Typhoon Tip's topic in New England
T/he 2.31 so far today takes us to 12.15 so far in July after 8.46" in June. 20.61 inches in 48 days, -
July has arrived ... the Meteorologically defined mid summer month
klw replied to Typhoon Tip's topic in New England
But have they installed? -
Looks like the sun is out at home. Worst of the 3rd storm missed from the looks of it. 2.31 total. NWS issued a Flash Flood Warning. https://forecast.weather.gov/showsigwx.php?warnzone=VTZ021&warncounty=VTC027&firewxzone=VTZ035&local_place1=West Norwich VT&product1=Flash+Flood+Warning&lat=43.7543&lon=-72.3728
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Wife reports backyard is series of waterfalls again with the flat area having more water than last Monday. Town (4 miles away) is dry. Now at 2.02 inches and another cell has formed behind the first 2.
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1.5"+ in past 45 minutes at our house. https://www.wunderground.com/dashboard/pws/KVTNORWI24
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July has arrived ... the Meteorologically defined mid summer month
klw replied to Typhoon Tip's topic in New England
Looks like our house has gotten over 1.5 inches in past 45 minutes. https://www.wunderground.com/dashboard/pws/KVTNORWI24 -
July has arrived ... the Meteorologically defined mid summer month
klw replied to Typhoon Tip's topic in New England
Hopefully not that Germany is eying the Sudentenland. -
Thursday, July 13 - Friday, July 14, 2023 Convection
klw replied to weatherwiz's topic in New England
Now it is a flood warning https://forecast.weather.gov/wwamap/wwatxtget.php?cwa=BTV&wwa=flood warning Essex NY-Addison VT-Rutland VT- 1008 PM EDT Fri Jul 14 2023 ...FLOOD WARNING IN EFFECT UNTIL 4 AM EDT SATURDAY... * WHAT...Flooding caused by excessive rainfall is occurring or expected. * WHERE...Portions of northern New York, including the following county, Essex. Portions of Vermont, including the following counties, Addison and Rutland. * WHEN...Until 400 AM EDT. * IMPACTS...Flooding of rivers, creeks, streams, and other low-lying and flood-prone locations is imminent or occurring. Numerous roads remain closed due to flooding. * ADDITIONAL DETAILS... - At 1004 PM EDT, Local law enforcement reported major flooding between Schroon Lake and Severance with roads closed at the intersection of routes 74 and 9. Between 2 and 5 inches of rain have fallen. - Additional rainfall amounts up to 0.5 inch are possible in the warned area. - Some locations that will experience flooding include... Middlebury, Moriah, Crown Point, Minerva, Crown Point Center, Port Henry, D A R State Park, Bridport, Shoreham, Addison, Schroon Lake, Orwell, Panton, Cornwall, Benson, Weybridge, Waltham, New Haven, Bristol and Lincoln. - http://www.weather.gov/safety/flood -
https://forecast.weather.gov/wwamap/wwatxtget.php?cwa=BTV&wwa=flood warning Flood Warning National Weather Service Burlington VT 1008 PM EDT Fri Jul 14 2023 NYC031-VTC001-021-150800- /O.NEW.KBTV.FA.W.0025.230715T0208Z-230715T0800Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Essex NY-Addison VT-Rutland VT- 1008 PM EDT Fri Jul 14 2023 ...FLOOD WARNING IN EFFECT UNTIL 4 AM EDT SATURDAY... * WHAT...Flooding caused by excessive rainfall is occurring or expected. * WHERE...Portions of northern New York, including the following county, Essex. Portions of Vermont, including the following counties, Addison and Rutland. * WHEN...Until 400 AM EDT. * IMPACTS...Flooding of rivers, creeks, streams, and other low-lying and flood-prone locations is imminent or occurring. Numerous roads remain closed due to flooding. * ADDITIONAL DETAILS... - At 1004 PM EDT, Local law enforcement reported major flooding between Schroon Lake and Severance with roads closed at the intersection of routes 74 and 9. Between 2 and 5 inches of rain have fallen. - Additional rainfall amounts up to 0.5 inch are possible in the warned area. - Some locations that will experience flooding include... Middlebury, Moriah, Crown Point, Minerva, Crown Point Center, Port Henry, D A R State Park, Bridport, Shoreham, Addison, Schroon Lake, Orwell, Panton, Cornwall, Benson, Weybridge, Waltham, New Haven, Bristol and Lincoln. - http://www.weather.gov/safety/flood
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Cells seem to constantly be building sw of that area
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Ripton and Hancock Vt must be getting washed away. This will be really bad. https://www.wunderground.com/dashboard/pws/KVTRIPTO7 This site up to 2.82 inches and coming down at 2.1 per hour at the moment. Downstream of there will be hurt too. I left the Morrisville Hannafords a little after 9 and immediately saw the lightning show. I thought I would be driving right into it but it stopped moving and grew. I was sure I would get caught in it between Barre and Randolph but I out ran it. 1 1/2 hours of constant lightning.
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Thursday, July 13 - Friday, July 14, 2023 Convection
klw replied to weatherwiz's topic in New England
Ripton and Hancock Vt must be getting washed away. This will be really bad. https://www.wunderground.com/dashboard/pws/KVTRIPTO7 This site up to 2.82 inches and coming down at 2.1 per hour at the moment. Downstream of there will be hurt too. -
Thursday, July 13 - Friday, July 14, 2023 Convection
klw replied to weatherwiz's topic in New England
Some thunder, not much wind. I am tired and heading to bed. -
Thursday, July 13 - Friday, July 14, 2023 Convection
klw replied to weatherwiz's topic in New England
And it begins -
Thursday, July 13 - Friday, July 14, 2023 Convection
klw replied to weatherwiz's topic in New England
It should be here any minute https://www.wunderground.com/dashboard/pws/KVTNORWI24 -
Thursday, July 13 - Friday, July 14, 2023 Convection
klw replied to weatherwiz's topic in New England
Storms just reached Rutland but the camera faces east -
Thursday, July 13 - Friday, July 14, 2023 Convection
klw replied to weatherwiz's topic in New England
Severe Weather Statement National Weather Service Burlington VT 639 PM EDT Thu Jul 13 2023 NYC031-VTC001-021-132245- /O.CON.KBTV.TO.W.0001.000000T0000Z-230713T2245Z/ Essex NY-Addison VT-Rutland VT- 639 PM EDT Thu Jul 13 2023 ...A TORNADO WARNING REMAINS IN EFFECT UNTIL 645 PM EDT FOR SOUTHEASTERN ESSEX...SOUTHWESTERN ADDISON AND NORTHWESTERN RUTLAND COUNTIES... At 639 PM EDT, a severe thunderstorm capable of producing a tornado was located over Lake Dunmore, moving northeast at 30 mph. HAZARD...Tornado and two inch hail. SOURCE...Radar indicated rotation. IMPACT...Flying debris will be dangerous to those caught without shelter. Mobile homes will be damaged or destroyed. Damage to roofs, windows, and vehicles will occur. Tree damage is likely. This tornadic thunderstorm will remain over mainly rural areas of southeastern Essex, southwestern Addison and northwestern Rutland Counties, including the following locations... Benson Bay, Catfish Bay In Addison County, Huntley Island, Forest Dale, Beadles Cove, Larrabees Point, Beartrap Island, Kerby Point, Hollands Pasture Island, and East Shoreham. -
https://vtdigger.org/2023/07/13/vermont-reports-first-flood-related-fatality/
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Thursday, July 13 - Friday, July 14, 2023 Convection
klw replied to weatherwiz's topic in New England
It looks like the cell moving into Addison County is being picked up by this camera in Middlebury: -
Thursday, July 13 - Friday, July 14, 2023 Convection
klw replied to weatherwiz's topic in New England
Other views here: https://www.wcax.com/weather/cams/ current cell may go straight over the airport soon (edit- looks like it will miss to the west (behind the camera) -
Thursday, July 13 - Friday, July 14, 2023 Convection
klw replied to weatherwiz's topic in New England
Can watch storm come into Burlington off the lake here: -
Thursday, July 13 - Friday, July 14, 2023 Convection
klw replied to weatherwiz's topic in New England
BTV discussion (will Wiz make his wife read it to him- not for lack of ability to comprehend): https://forecast.weather.gov/product.php?site=BTV&issuedby=BTV&product=AFD&format=CI&version=1&glossary=1 NEAR TERM /THROUGH FRIDAY NIGHT/... As of 332 PM EDT Thursday...Active severe weather is ongoing through this evening as an unseasonably strong low pressure system drags a cold front eastward through our region tonight. As expected, ingredients are present for rotating thunderstorms in this region, near the triple point of a dynamic low pressure system passing northeastward through the St. Lawrence Valley. Our thermodynamic environment is impressive with mixed layer CAPE at 2 PM of 1500-2000 J/kg, steep low level lapse rates and moderate mid-level lapse rates helping updrafts strengthen. Southwesterly wind shear is ample to keep storm structures organized, with effective shear of 30 to 35 knots, and rotation is substantial with 0-1 km helicity of 100 to 150 m2/s2. Additionally, strong synoptic southerly winds will gradually expand eastward, which are being channeled up the Champlain Valley with wind gusts locally near 35 MPH. An occasional stronger gust may cause isolated damage outside of the thunderstorms, especially where we`ve seen very wet conditions. A mixture of storm modes are present, which include linear segments and discrete cells, which could include supercells. The main hazards are damaging winds and flash flooding. Wind damage has already been reported in the northern New York this afternoon. Rotating storms have resulted in a reported funnel cloud, but relatively high cloud bases (3000 feet or higher) may limit the tornado potential. As thunderstorms expand northward and eastward off of the Adirondacks, we will be concerned with rotating storms and enhanced gusts in the Champlain Valley due to enhanced low level convergence. As the evening progresses, any discrete storms should tend to be absorbed into a single fast moving squall line. Brief spinups are possible along this line, and its fast forward speed will tend to keep its severity going all the way eastward through Vermont even as daytime heating. Scattered wind damage is expected with the squall line. Less wind will be needed to produce downed trees than typical given saturated soils in most areas currently in a flood watch. Where a combination of discrete and linear storms move over the same area, flash flooding due to multiple rounds of heavy rain remains possible. A heightened concern for flooding remains in our hard hit areas of central Vermont, where capacity for additional heavy rain is low. Improving conditions will arrive overnight with winds becoming light and drier air settling in behind the cold front. -
July has arrived ... the Meteorologically defined mid summer month
klw replied to Typhoon Tip's topic in New England
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https://forecast.weather.gov/product.php?site=BTV&issuedby=BTV&product=AFD&format=CI&version=1&glossary=1 Otherwise, damaging winds are the main threat, with large hail mainly confined to any rotating storms during the period. Damaging winds may be more likely to uproot trees in today`s event given saturated ground conditions areawide. Severe threat gradually wanes across central/ern VT late this evening as storms encounter weakening CAPE with onset of diurnal cooling cycle. We`ll need to watch the southern end of the potential convective line, where some of the CAMs output and HREF suggest best potential for training storms toward the end of the event this evening. Thinking most rainfall is in 0.75-1" range, but locally 1-1.5" and maybe localized 2" totals for Rutland/Windsor counties if storms take on more of an NE-SW orientation parallel to weakening deep-layer shear in the 00-03Z period this evening. Low Flash flood guidance values - a function of saturated antecedent soil conditions - of roughly 1.2-1.5" in 3 hours will potentially be exceeded with the type of intense rainfall that these thunderstorms can produce. As such, Flood Watch continues to look good, and will highlight greatest potential of flash flooding is in s-central VT.
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July has arrived ... the Meteorologically defined mid summer month
klw replied to Typhoon Tip's topic in New England
https://forecast.weather.gov/product.php?site=BTV&issuedby=BTV&product=AFD&format=CI&version=1&glossary=1 Convective allowing models are consistent in their depiction of convective initiation in vcnty of St. Lawrence County 18-19Z, with convective storms moving steadily eastward through the late afternoon hrs in nrn NY and across VT during the late afternoon thru evening hours. Best vertical shear is in the sfc-700mb layer, with excellent hodograph curvature and sfc-1km SRH values exceeding 100 m2/s2, especially across nrn NY. Weakening mid- level flow and shear suggests updrafts may rain back on themselves later in the convective evolution, with potential for storm mergers and upscale growth into a QLCS. Until that time however, environment does support supercell development with 30-40kts of sfc-6km bulk shear and aforementioned strong low- level SRH and high CAPE values. Can`t rule out an isolated tornado or two, especially nrn NY ewd into the Champlain Valley, where stronger southerly PBL flow will exist with terrain driven channeling effects. Vermont averages one tornado per year, and this is the type of convective environment that can be conducive for isolated tornadoes to happen in our region.