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Everything posted by yoda
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There's another supercell i think to its NE that is warned... I think thats our "game"
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Looks like the tornadic cell in WV is trying to recycle
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Radarscope from LWX is picking up 65dbz from the tornadic WV cell... dang
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I know this MCD is more to our east... but note the disco... bolded mine Mesoscale Discussion 1697 NWS Storm Prediction Center Norman OK 0343 PM CDT Tue Jul 21 2026 Areas affected...eastern Virginia into the DelMarVa Concerning...Severe Thunderstorm Watch 509... Valid 212043Z - 212215Z The severe weather threat for Severe Thunderstorm Watch 509 continues. SUMMARY...The severe weather threat will continue through the afternoon and into the evening. DISCUSSION...Storms across Virginia and into the DelMarVa have mostly lacked structure thus far with only occasional stronger multi-cell storms. As height falls overspread the area this evening, expect more robust convection with a greater damaging wind threat and an eventual line of storms along or ahead of the cold front, advances east. In addition, strengthening mid-level and low-level flow will assist in storm organization, further supporting the threat. ..Bentley.. 07/21/2026 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...PHI...AKQ...LWX...RNK... LAT...LON 36648039 37457909 38317774 38907701 39477640 39497553 39107487 38507479 37967507 37297548 36677596 36648039 MOST PROBABLE PEAK TORNADO INTENSITY...85-110 MPH MOST PROBABLE PEAK WIND GUST...55-70 MPH MOST PROBABLE PEAK HAIL SIZE...1.00-1.75 IN
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BULLETIN - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Warning National Weather Service Baltimore MD/Washington DC 444 PM EDT Tue Jul 21 2026 The National Weather Service in Sterling Virginia has issued a * Severe Thunderstorm Warning for... Anne Arundel County in central Maryland... Northwestern Calvert County in southern Maryland... East central Prince Georges County in central Maryland... * Until 515 PM EDT. * At 444 PM EDT, a severe thunderstorm was located near Upper Marlboro, moving northeast at 45 mph. HAZARD...70 mph wind gusts and quarter size hail. SOURCE...Radar indicated. IMPACT...Damaging winds will cause some trees and large branches to fall. This could injure those outdoors, as well as damage homes and vehicles. Roadways may become blocked by downed trees. Localized power outages are possible. Unsecured light objects may become projectiles. * Locations impacted include... Bowie, Severn, Annapolis, Crofton, Mayo, Shady Side, Deale, Naval Academy, Upper Marlboro, Severn River, South River, Sillery Bay, Rhode River, Magothy River, Dobbins Island, Glen Burnie, Severna Park, Odenton, Pasadena, and Arnold. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. Large hail, damaging wind, and continuous cloud to ground lightning are 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. && LAT...LON 3900 7638 3896 7645 3880 7649 3879 7649 3878 7651 3869 7670 3880 7682 3917 7665 3907 7642 3906 7642 3901 7637 TIME...MOT...LOC 2044Z 219DEG 39KT 3885 7671 THUNDERSTORM DAMAGE THREAT...CONSIDERABLE HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...1.00 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...70 MPH
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Garrett County severe warned with tornado possible tag
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Storm entering Garrett County in about 30 minutes just got TWd... big rotation SW of Morgantown
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I'm assuming we are also watching the storms in SE OH entering WV?
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URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 509 NWS Storm Prediction Center Norman OK 245 PM EDT Tue Jul 21 2026 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of District Of Columbia Delaware Maryland Far Northwest North Carolina Virginia The Eastern West Virginia Panhandle Coastal Waters * Effective this Tuesday afternoon and evening from 245 PM until 1000 PM EDT. * Primary threats include... Scattered damaging wind gusts to 70 mph likely Isolated large hail events to 1.5 inches in diameter possible A tornado or two possible SUMMARY...Multiple rounds of strong to severe thunderstorms are expected across the region today and tonight, beginning with the ongoing storms across central Virginia. Environmental conditions support robust updrafts, with all severe hazards possible, including damaging gusts and isolated hail. A low-probability tornado risk exists with any afternoon development as well. Another round of storms is possible along a cold front later tonight, with damaging gusts as the primary risk. A low-probability, line-embedded tornado risk exists with these more linear storms as well.
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First TW up in RLX CWA... STW up down near CHO
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\ Mesoscale Discussion 1688 NWS Storm Prediction Center Norman OK 1115 AM CDT Tue Jul 21 2026 Areas affected...northeast Kentucky...northern West Virginia...and southern Ohio Concerning...Severe potential...Watch likely Valid 211615Z - 211815Z Probability of Watch Issuance...80 percent SUMMARY...The severe weather threat will increase this afternoon across southern Ohio and northern Kentucky into West Virginia. DISCUSSION...A cluster of storms in southeast Ohio will likely continue east-southeast into a more unstable airmass along a differential heating zone developing across northern West Virginia. Damaging winds will likely be the primary threat with this cluster. Additional storms are expected to strengthen farther southwest through the afternoon with sufficient shear for some supercell structures. Damaging winds will likely be the main threat with this activity with some large hail potential. In addition, a tornado or two is also possible, especially as the low-level jet strengthens this afternoon/evening. A watch will likely be needed within the next 1 to 2 hours to address the threat from the ongoing activity and any additional storms which develop. ..Bentley/Mosier.. 07/21/2026 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...CTP...LWX...RNK...PBZ...RLX...JKL...ILN...LMK...
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Watchi coming soon for KY/OH/WV per MCD just issued... LWX mentioned in WFO list
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85/75 S 15 HX 93 at DCA at noon
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Getting sunny here through the high clouds
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12z NAM throwing out some nasty hodographs and STP numbers between 21z and 00z KFDK at 00z DCA at 00z
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Looks like 12z HRRR has some discrete convection from 18z to 20z across the region before QLCS (?) comes through around 22z-23z
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1300z SPC OTLK has moved the ENH southern line south to RIC... was near EZF on 06z outlook
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Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0757 AM CDT Tue Jul 21 2026 Valid 211300Z - 221200Z ...THERE IS AN ENHANCED RISK OF SEVERE THUNDERSTORMS ACROSS PARTS OF THE OHIO VALLEY TO MID-ATLANTIC STATES... ...SUMMARY... Numerous severe thunderstorms are expected across a broad region from the Ohio Valley to the Mid-Atlantic and Northeast States today into tonight. Swaths of damaging wind gusts are expected to be the most common impact, but some tornadoes are possible as well. ...Ohio Valley into the Mid-Atlantic and Northeast... A broad area of 40-50-kt mid-level west-southwesterly flow will overspread the Ohio Valley into the Mid-Atlantic/Northeast as a large-scale trough amplifies and shifts across the northeastern CONUS. Scattered to numerous thunderstorms are expected to develop ahead of an eastward-moving cold front across the Ohio Valley and along a pre-frontal trough over the Mid-Atlantic. In the base of the trough, a convectively augmented mid-level impulse moving from the lower Ohio Valley into the Mid-Atlantic may also serve as a focus for convective development. Severe thunderstorm potential could increase relatively early today across parts of Ohio into Pennsylvania and western New York. Diurnal heating within cloud breaks, combined with upper 60s to lower 70s F dewpoints, will support at least moderate surface-based instability across the broad pre-frontal warm sector. The most favorable overlap of this instability and 40-50 kt of effective shear is expected from the lower Ohio Valley into the Mid-Atlantic, where a mix of organized clusters and supercells should evolve and spread eastward through the day. Swaths of damaging wind gusts will be the primary severe hazard, though severe hail will also be possible with any initial/sustained supercells. Additionally, a gradually strengthening and expanding 30-kt low-level jet will contribute to clockwise-curved low-level hodographs, and a few tornadoes may occur. This supercell related-tornado potential may focus along the warm front into parts of the Northeast, and with semi-discrete development later today focusing along the lee trough/edge of higher terrain, although low-level shear/SRH will be moderate in most of the open warm sector as well.
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I don't think we see pure blue skies and sun today... I think as the sat image you posted shows we will have sun and clouds. Should be enough as long as its like 3 to 5 hours of it
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I work overnight (Sunday to Wednesday) so I have time to post lol Disco says we should get some breaks soon as the WF goes by... we shall see as you said
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Morning discussion from LWX on the threat today DISCUSSION... KEY MESSAGE 1...Strong to severe thunderstorms are likely today, with some thunderstorm risk lingering into Wednesday. Higher dew points have been advecting into the area with moisture and instability increasing in S/SW flow. So far shower activity has been isolated and short lived. However, a subtle shortwave is approaching, and some of the convection currently across WV and SW VA could persist or redevelop across the area through the early morning hours. Areas of stratus are also forming. Both of these features could inhibit surface heating this morning, although it does appear we should have some partial sun by midday as the warm front continues to lift to the north. This should be enough to allow temperatures to rise into the mid 80s to lower 90s. Combined with dew points in the 70s, at least moderate surface based instability should develop, highest east of the Blue Ridge Mountains. A seasonably strong trough will be approaching from the west, providing forcing and anywhere between 30 and 50 kt of flow in the cloud bearing layer. This will provide a favorable environment for severe thunderstorms, with supercells and clusters both possible. One initiation region will likely be along the prefrontal/lee trough near or just east of the Blue Ridge. These storms will likely affect the I-95 corridor between mid afternoon and early evening. While these storms will certainly carry severe potential, it is interesting to note on average the 850-700 mb wind fields will be greater to our south and west until late afternoon or early evening. Other details remain unresolved, especially the effects of upstream convection that moved through the upper Great Lakes and mid Mississippi Valley. This could have some impact on how thunderstorms develop across the Ohio Valley this afternoon and what subsequently moves into western areas. If stronger/more widespread convection does not move in from the Ohio Valley, there is some potential there is a relative minimum in coverage between the Blue Ridge and Alleghenies. The coverage of afternoon storms and upstream effects will determine what happens this evening as the strongest forcing overspread the area along with increasing low level wind fields. A second round of showers and thunderstorms will be possible for some areas, though increasing low level stability may limit the severe weather threat. It appears the evening/overnight coverage could gradually shift to southern parts of the forecast area, or even mostly to our south, potentially focusing on outflow from earlier activity. Damaging winds will be the primary severe hazard, although large hail and a tornado or two are possible if supercells develop. Some localized swaths of more considerable wind damage are possible. Relatively speaking, the tornado threat is higher to the north (and north of the CWA) closer to the warm front and possibly closer to the Chesapeake Bay where low level winds could be backed. With that said, forecast hodographs vary quite a bit between models and also throughout time, so any relatively higher threat will depend on the mesoscale details. With precipitable water values increasing (over 2 inches east of the Blue Ridge), any storm mergers and training along mesoscale boundaries could result in localized flash flooding. Overall storm motions will be progressive though, so this threat appears too localized for a Flood Watch at the moment and will continue to be evaluated. Additional areas to monitor will be the Ohio Valley low level jet potentially leading to training (looks to be mostly west of the area), and the evening low level jet leading to backbuilding along any residual outflow/convergence feature (best QPF signal is currently mostly south of the forecast area).
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Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1230 PM CDT Mon Jul 20 2026 Valid 211200Z - 221200Z ...THERE IS AN ENHANCED RISK OF SEVERE THUNDERSTORMS ACROSS PORTIONS OF THE UPPER OHIO VALLEY INTO THE MID-ATLANTIC... ...SUMMARY... Numerous severe thunderstorms are expected across a broad region from the Ohio Valley into the Mid-Atlantic and Northeast on Tuesday. All severe hazards are possible, but swaths of damaging wind gusts should be the primary severe risk Tuesday afternoon into the nighttime hours. ...Synopsis... High amplitude ridging will build across the western US with continued progressive troughing across the east on Tuesday. Multiple short-wave impulses will rotate through the eastern US trough, with a belt of enhanced northwesterly flow traversing the Midwest into the Ohio Valley. At the surface, a cold front will shift south and east through the period, with a surface low across southern Ontario/Quebec. A pre-frontal surface trough will also be in place across western/central NY into the Mid-Atlantic vicinity. Widely scattered thunderstorm activity is expected through the period. ...Mid-Atlantic and Northeast... Thunderstorm activity is expected to increase along the pre-frontal trough from western/central New York into the Northeast/Mid-Atlantic late Tuesday morning into the afternoon. Though there may be potential for early morning cloud cover, it does appear that sufficient heating/moistening will occur for at least moderate instability to develop across the region through the afternoon. Mid-level flow will increase through the day along with forcing for ascent. It appears widely scattered thunderstorm activity with several clusters/embedded supercells will be ongoing by the afternoon. Highest confidence in transient embedded supercell modes would be closer to the surface low and near the front across western NY into eastern PA. Here, there may be potential for both damaging wind, large hail, and perhaps a couple of tornadoes. Guidance suggests the best signal for damaging wind will be across the Mid-Atlantic, where several damaging clusters could occur. As such, the Enhanced was expanded eastward into portions of the Mid-Atlantic. ...Ohio Valley... Evolution of overnight convection will play a large role in development/maintenance of thunderstorm activity across the Ohio Valley Tuesday. It appears that remnant convection will be ongoing at the start of the period near/just ahead of the surface front across northern Kentucky/southern Indiana/Ohio. This will likely re-intensify and continue to expand south and east during the morning as daytime heating begins. Strong daytime heating and moist profiles should support moderate to strong instability developing though the afternoon. Storm mode appears to be generally linear, with the greatest threat being for damaging wind given more linear forcing/initially boundary parallel shear along residual southward moving outflow. As such, the primary hazard will be damaging wind. Additional thunderstorm development is likely along and ahead of the front through the afternoon with increasing forcing for ascent with approaching shortwaves. Strong deep layer shear may become more boundary perpendicular supporting a supercell or two as the front sags south, with potential for large hail and perhaps a tornado. Confidence in this scenario is on the lower end and the primary hazard is expected to be a secondary wave of damaging wind potential. Should storms be able to cluster and establish a more organized cold pool, potential for some corridor of significant wind may be possible. Overall, no significant wind areas were included given low confidence in exact morning storm evolution and concerns over generally poor lapse rates. ..Thornton.. 07/20/2026
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Day 2 ENH up
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