Jump to content

yoda

Members
  • Posts

    63,914
  • Joined

Everything posted by yoda

  1. Severe Thunderstorm Watch coming in an hour or two for NE MD and DE potentially per MCD
  2. Granted higher chance for this (bolded mine) is to our north Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1230 PM CDT Tue Sep 01 2026 Valid 021200Z - 031200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS OVER THE EASTERN GREAT LAKES INTO MID-ATLANTIC AND OVER THE NORTHERN ROCKIES... ...SUMMARY... Severe thunderstorms are possible across portions of the eastern Great Lakes to the Mid-Atlantic Wednesday into Wednesday night. Damaging wind gusts are the main threat, though some large hail and a few tornadoes may also occur. Widely scattered severe gusts and more sporadic occurrences of large hail appear possible from the northern Rockies into northern High Plains Wednesday afternoon into night. ...Synopsis... A belt of 40-50+ kt mid-level winds will spread from the Great Lakes into the Northeast in tandem with a series of low-amplitude disturbances. Elsewhere, a negatively tilted shortwave trough and attending mid-level jet streak will progress through the northern Rockies Wednesday afternoon and evening. At the surface, the primary baroclinic zone is expected to extend from low pressure over James Bay through the Great Lakes and mid MO Valley into the northern High Plains. A backdoor front/quasi-stationary boundary will reside over the Mid-Atlantic, the specific location of which will be dictated by the extent of outflow associated with early-day storms and the strength of low-level ridging stretching from the Gulf of St. Lawrence through the Northeast. ...Great Lakes into the Mid-Atlantic... As alluded to in the synopsis, thunderstorms may be ongoing at 12Z Wednesday from portions of WI and MI into NY and PA within a zone of forcing for ascent associated with a lead short-wave trough. The strongest storms will be capable of isolated occurrences of large hail and/or damaging winds as they spread east-southeast through the lower Great Lakes and Mid-Atlantic Wednesday morning. In the wake of the early-day convection, prevailing west-northwest mid-level flow will maintain a plume of relatively steep mid-level lapse rates (e.g., 7 C/km) atop boundary layer dewpoints in the upper 60s to low 70s, yielding MLCAPE upwards of 2000-3000+ J/kg by afternoon from lower MI into western parts of NY and PA. Additional thunderstorms are expected during the afternoon from lower MI through the lower Great Lakes, aided by weak disturbances aloft and the moderate to strong instability forecast across the warm sector. The presence of 35-45 kt of effective bulk shear will support organized storm modes including supercells and bowing structures capable of large hail potentially approaching two inches and damaging wind gusts into Wednesday night. Tornado potential will be conditional on storm mode; however, the models do indicate stronger low-level winds and resultant larger SRH developing from southwest ON into NY and PA Wednesday afternoon into evening, where the greatest potential for a few tornadoes will exist.
  3. New Day 2 mentions higher chance for large hail and tornadoes SLGT risk moved further south towards RIC
  4. Well the NAM only goes out to 84... and IIRC, SPC didnt really focus on our region severe-wise until Thursday and Friday - which is near the end of its run and after.
  5. 12z NAM soundings seem to like Wednesday evening into Thursday morning (21z to 06z). What i mean is they suggest some significant severe if everything came together
  6. Looks like Wednesday to Friday will be our severe weather threat days
  7. And the crowd boos Despite the uncertainties, it remains likely that high temperatures will reach the lower to middle 90s for much of the region for much of the new work week. Latest guidance indicates potential for temperatures in the upper 90s to near 100 mid week, so long as it is not disrupted by cloud cover or convection. Depending on smaller scale details, dew points could end up a little higher or lower than currently progged which will ultimately affect how high heat index values get. Values approaching Heat Advisory criteria (100-104 west of the Blue Ridge, 105-109 east of the Blue Ridge) are possible. Temperatures may begin to moderate by next weekend as a cold front crosses the region.
  8. Afternoon AFD from LWX mentioned it KEY MESSAGE 2...Hot and humid conditions next week with increasing thunderstorm chances by midweek. Models are generally in good agreement that a strong mid-level ridge builds across the southern U.S. and into the Mid-Atlantic during the early to middle part of next week. Well above normal temperatures for late August can be expected as highs reach the lower to mid 90s. Hot and humid conditions are likely as heat indices reach the upper 90s and possibly the lower 100s. A more notable mid-level disturbance will progress from the northern High Plains to the Northeast toward the middle of next week. The ridge will be suppressed as a result, but it remains uncertain how much and how quickly this happens. The latest trend in the ensemble guidance is for the upper ridge over the Mid-South to be a bit further west. If this pans out, our area in the Mid-Atlantic will be in a more favorable location along the periphery of the ridge to be impacted by passing MCSs. Eventually, by mid week it looks like the upper ridge retreats enough to allow the shortwave troughs to move over our area. Several of the AI models indicate increasing severe potential at some point Tuesday through Friday, which is certainly possible given the high instability that will be in place, along with substantial upper-level support from any strong disturbance. It`s also possible a back door cold front tries to drop into the area by Wednesday or Thursday, leading to greater uncertainty in temperatures.
  9. I see a report of quarter sized hail from a spotter as well as utility wires downed
  10. Watch up until 10pm URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 632 NWS Storm Prediction Center Norman OK 315 PM EDT Thu Aug 27 2026 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of District Of Columbia Central Maryland Central Pennsylvania Northern Virginia Eastern Panhandle of West Virginia Coastal Waters * Effective this Thursday afternoon and evening from 315 PM until 1000 PM EDT. * Primary threats include... Scattered damaging wind gusts to 70 mph possible Scattered large hail events to 1.5 inches in diameter possible A tornado or two possible SUMMARY...Thunderstorm coverage and intensity is expected to increase across the region this afternoon as a shortwave trough and attendant cold front approach from the west. Warm and moist conditions have fostered strong buoyancy across the region while increasing mid-level flow contributes to strengthening deep-layer vertical shear. These environmental conditions support the potential for strong to severe thunderstorms, with damaging wind gusts and isolated large hail as the primary risks. A low-probability risk for a brief tornado or two exists as well.
  11. Will there be CAD south from the HP located in Lake America for the duration of Winter Storm America?
  12. Severe Thunderstorm Watch coming soon for most of us per MCD Mesoscale Discussion 2147 NWS Storm Prediction Center Norman OK 1252 PM CDT Thu Aug 27 2026 Areas affected...south-central and southeast Pennsylvania into the West Virginia Panhandle...northern Virginia...and portions of Maryland Concerning...Severe potential...Watch likely Valid 271752Z - 271945Z Probability of Watch Issuance...80 percent SUMMARY...The threat for severe thunderstorms capable of damaging wind gusts, marginally severe hail, and perhaps a brief tornado is expected to increase between 19-21Z. A severe thunderstorm watch is likely. DISCUSSION...Visible satellite imagery indicates deepening cumulus along the high terrain from the WV Panhandle and northern VA into portions of south-central PA amidst a warming and destabilizing boundary layer with MLCAPE of 1500-2500 J/kg, per latest objective analysis. Continued daytime heating coupled with the glancing influence of a subtle disturbance passing near and to the southeast of the area is expected to support a gradual increase in thunderstorms across the discussion area over the next 2-3 hours. The degree of instability combined with around 30 kt of deep-layer shear will support some storm organization, including possible supercell and/or bowing structures, with the primary hazard being damaging wind gusts as low-level lapse rates continue to steepen. Marginally severe hail is also possible, especially with any supercells that may evolve. A conditional brief tornado threat may materialize, particularly over northeast MD into far southeast PA, with storms developing along or favorably interacting with an outflow boundary associated with ongoing storms over NJ, where low-level shear may be locally enhanced. ..Mead/Mosier.. 08/27/2026 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...CTP...LWX... LAT...LON 39077875 39737844 40637732 40627690 40387647 39907632 39407623 38477666 38207758 38277862 39077875 MOST PROBABLE PEAK TORNADO INTENSITY...UP TO 90 MPH MOST PROBABLE PEAK WIND GUST...55-70 MPH MOST PROBABLE PEAK HAIL SIZE...1.00-1.75 IN
  13. Probably flyover for the American 250 F1/Grand Prix race thing in DC today
  14. I didn't know about this until it showed up in my feed - lunar eclipse this Thursday night into Friday morning https://www.timeanddate.com/eclipse/in/usa/washington-dc?iso=20260828
  15. Mesoscale Discussion 2091 NWS Storm Prediction Center Norman OK 0502 PM CDT Sat Aug 22 2026 Areas affected...Portions of western/central Virginia and northern North Carolina Concerning...Severe potential...Watch possible Valid 222202Z - 230030Z Probability of Watch Issuance...40 percent SUMMARY...Storms are expected to increase in coverage while spreading eastward into this evening. The primary concern is locally damaging wind gusts. While a watch is not currently expected, trends are being monitored. DISCUSSION...Thunderstorms are increasing in coverage along the Blue Ridge in western VA, potentially aided by increasing midlevel height falls preceding a broad midlevel trough approaching the region from the west. Over the next few hours, these storms should continue spreading eastward across western/central VA and northern NC. A warm, moist, and uncapped air mass downstream should support a modest increase in thunderstorm coverage. While midlevel lapse rates are limiting overall buoyancy (around 1000-1500 J/kg MLCAPE), an elongated midlevel hodograph (40 kt of 0-6 km shear per FCX VWP) could promote a few loosely organized clusters capable of producing locally damaging wind gusts. While the overall risk may remain too localized/sparse for a watch, trends are being monitored. ..Weinman/Thompson.. 08/22/2026 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...AKQ...LWX...RAH...RNK...GSP... LAT...LON 36568122 36908125 37628037 38057977 38737887 39377837 39447792 39237739 38807712 38207722 36967810 36137933 35987997 36008043 36298116 36568122 MOST PROBABLE PEAK WIND GUST...55-70 MPH MOST PROBABLE PEAK HAIL SIZE...UP TO 1.25 IN
  16. What the... what is this Severe Weather Statement National Weather Service Baltimore MD/Washington DC 614 PM EDT Sat Aug 22 2026 WVC027-031-222245- /O.CON.KLWX.SV.W.0435.000000T0000Z-260822T2245Z/ Hardy WV-Hampshire WV- 614 PM EDT Sat Aug 22 2026 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 645 PM EDT FOR NORTHEASTERN HARDY AND SOUTHEASTERN HAMPSHIRE COUNTIES... At 613 PM EDT, a severe thunderstorm was located near Wardensville, or 14 miles southeast of Romney, moving east at 10 mph. THIS IS A DESTRUCTIVE STORM FOR SOUTHERN HAMPSHIRE COUNTY. HAZARD...80 mph wind gusts and two inch hail. SOURCE...Radar indicated. IMPACT...Expect considerable damage to trees and power lines. Your life is at significant risk if outdoors. In addition to some trees falling into homes, wind damage is possible to roofs, sheds, open garages, and mobile homes. Locations impacted include... Rio, Yellow Spring, Delray, and Capon Springs. PRECAUTIONARY/PREPAREDNESS ACTIONS... This storm is producing destructive winds and large damaging hail. SEEK SHELTER NOW inside a sturdy structure and stay away from windows. Continuous cloud to ground lightning is occurring with this storm. Move indoors immediately. Lightning is one of nature`s leading killers. Remember, if you can hear thunder, you are close enough to be struck by lightning. Torrential rainfall is occurring with this storm, and may lead to flash flooding. Do not drive your vehicle through flooded roadways. && LAT...LON 3913 7869 3920 7867 3926 7846 3912 7845 3911 7848 3910 7850 TIME...MOT...LOC 2213Z 273DEG 8KT 3917 7861 TORNADO...POSSIBLE THUNDERSTORM DAMAGE THREAT...DESTRUCTIVE HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...2.00 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...80 MPH
  17. Arsenal pretty much toying with Coventry
  18. Spotter in Dover reported flying debris and rain wrapped tornado at 618pm
×
×
  • Create New...