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yoda

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  1. Yes... but that usually means a mess of a system or just tropical storm stuff
  2. LWX morning AFD makes mention of it: There are beginning to be some hints towards the end of the long term period that a low pressure system spins up off the Atlantic coast along the stalled frontal boundary offshore over the Gulf Stream. For now, keeping that out of the forecast, as there are more pieces of guidance that keep this feature offshore or don`t develop it at all. This is just something to watch at this point in time.
  3. Nothing of interest really anywhere on the 00z GFS and 00z EURO runs tonight... besides maybe some crappy TS system late in the GFS run (i.e. Day 12+) that shows up in the E GOM and heads into the W ATL out to sea
  4. Not sure what that was from the 00z GFS for next weekend
  5. Hurricane Earl Discussion Number 23 NWS National Hurricane Center Miami FL AL062022 1100 AM AST Thu Sep 08 2022 The convective structure of Earl this morning is interesting, with a large convective band with cloud tops below -70 C completing one full cyclonic orbit around the hurricane. The NOAA Hurricane Hunters earlier indicated that the central pressure had fallen from last night, with the final reading at 965 mb. However, the 700 mb flight level, SFMR, and tail Doppler radar winds have yet to respond to the continued falling pressure. Therefore, the wind speed this advisory will be held at 90 kt. Of note, the aircraft mission is reporting that Earl has a fairly large closed eye , with an estimated diameter of 50 n mi. Based on the last few center fixes, Earl is starting to make the turn to the north-northeast as it gradually accelerates, estimated at 030/11 kt. A shortwave trough in the process of moving offshore of the Eastern U.S. coastline and this feature, in combination with mid-level ridging to the east of Earl, is expected to cause Earl to bend further eastward as the flow accelerates. There have been very few changes made to the NHC forecast track over the first 24-48 hours, with Earl expected to pass 75-100 n mi to the southeast of Bermuda tonight into tomorrow morning. Shortly after 48 hours, Earl will be captured by the digging shortwave trough with model guidance indicating it will undergo a warm-seclusion-type extratropical transition. This process will also likely result in a substantial slow-down in the forward motion between 48-72 hours, and this portion of the track forecast has the largest along-track spread, related to the degree of phasing between Earl and this trough. Thereafter, their combination should begin to move eastward into the Atlantic Maritimes by the end of the forecast period, opting to favor a blend between the GFS and ECMWF track solutions. Per the latest SHIPS guidance, vertical wind shear over Earl is now under 10 kt and is forecast to remain that way for the next 24 hours as Earl traverses over 29 C sea-surface temperatures. Thus, steady intensification is expected, with the assumption that the current core structure of Earl fully consolidates and takes advantage of this favorable environment. The peak intensity of 115 kt is still under the latest LGEM and HCCA guidance. After 36 hours, Earl will begin to undergo extratropical transition as the trough interaction introduces substantial baroclinicity as vertical wind shear rapidly increases. Earl is expected to transition into a powerful hurricane-force extratropical low sometime between 48-60 hours, with this low filling rather quickly thereafter, in good agreement with the intensity consensus aids. KEY MESSAGES: 1. Although Earl's center is forecast to pass southeast of Bermuda, tropical-storm-force winds are expected on the island this afternoon through early Friday morning. Hurricane-force winds are possible on Bermuda this evening or tonight if Earl's track shifts farther west than is currently forecast. 2. Swells generated by Earl are building near Bermuda and are expected to reach the U.S. East Coast later today and tonight. These swells are likely to cause life-threatening surf and rip current conditions through the weekend. Please consult products from your local weather office. FORECAST POSITIONS AND MAX WINDS INIT 08/1500Z 29.0N 65.0W 90 KT 105 MPH 12H 09/0000Z 30.7N 64.2W 100 KT 115 MPH 24H 09/1200Z 33.5N 61.7W 110 KT 125 MPH 36H 10/0000Z 37.0N 57.7W 115 KT 130 MPH 48H 10/1200Z 40.9N 53.5W 100 KT 115 MPH 60H 11/0000Z 43.6N 49.9W 70 KT 80 MPH...POST-TROP/EXTRATROP 72H 11/1200Z 44.9N 48.1W 50 KT 60 MPH...POST-TROP/EXTRATROP 96H 12/1200Z 46.1N 46.2W 40 KT 45 MPH...POST-TROP/EXTRATROP 120H 13/1200Z 47.1N 40.7W 40 KT 45 MPH...POST-TROP/EXTRATROP $$ Forecaster Papin
  6. NHC just issued its last advisory on Danielle BULLETIN Post-Tropical Cyclone Danielle Advisory Number 30 NWS National Hurricane Center Miami FL AL052022 300 PM GMT Thu Sep 08 2022 ...DANIELLE NOW POST-TROPICAL... ...THIS IS THE LAST NHC ADVISORY... SUMMARY OF 300 PM GMT...1500 UTC...INFORMATION ---------------------------------------------- LOCATION...47.9N 31.0W ABOUT 715 MI...1145 KM NNW OF THE AZORES MAXIMUM SUSTAINED WINDS...65 MPH...100 KM/H PRESENT MOVEMENT...NNE OR 20 DEGREES AT 14 MPH...22 KM/H MINIMUM CENTRAL PRESSURE...973 MB...28.74 INCHES WATCHES AND WARNINGS -------------------- There are no coastal watches or warnings in effect. DISCUSSION AND OUTLOOK ---------------------- At 300 PM GMT (1500 UTC), the center of Post-Tropical Cyclone Danielle was located near latitude 47.9 North, longitude 31.0 West. The post-tropical cyclone is moving toward the north-northeast near 14 mph (22 km/h). The post-tropical cyclone is forecast to make a gradual counter-clockwise loop during the next 36 h, and then move generally southeastward to east-southeastward through the weekend. Maximum sustained winds have decreased to near 65 mph (100 km/h) with higher gusts. Danielle is forecast to remain a large post-tropical cyclone over the north Atlantic for the next several days, even as its peak winds slowly decrease. Tropical-storm-force winds extend outward up to 230 miles (370 km) from the center. The estimated minimum central pressure is 973 mb (28.74 inches).
  7. yoda

    Winter 2022-23

    @40/70 Benchmark This is when you were forecasting the La Nina to peak yes? In the fall and then ease back into weak territory in early 2023?
  8. 12z model suite has some disparity: 12z GFS likes i66 north in MD... 1-1.25 for most of MD except for 2"+ in W MD 12z FV3/12z 3km NAM both have no rain for pretty much anyone through 00z TUE (both runs end there out to 60 hours) 12z RGEM decent for most... 1-2" with some pockets of up to 3" mainly in W MD 12z NAM shoves much of the heavier rain (i.e. >0.5") north of the M/D line 12z CMC has a precip hole near DC lol... but is 0.5"-1.0" for most but 1-2" for W MD and C VA (down towards CHO and SW portions of LWX CWA)
  9. @weatherwiz and others (figured this would get seen more in here rather then in the tropics thread)
  10. Tropical Storm Danielle Discussion Number 9 NWS National Hurricane Center Miami FL AL052022 900 AM GMT Sat Sep 03 2022 Convection associated with Danielle has continued to decrease this morning, with a corresponding decrease in satellite intensity estimates. Based on this decrease, it is estimated that Danielle has weakened to a tropical storm with an initial intensity of 60 kt. While it is not known why the storm has weakened, one possibility is that the slow motion has allowed the cyclone to upwell cold water underneath it. Danielle is essentially stationary with a 12-h motion of 270/1 kt. The cyclone is still caught south of a blocking high over the North Atlantic. This pattern is expected to hold firm for a couple of days, with the system forecast to drift westward and then drift northward. After 48-60 h, the block will weaken and allow the southern edge of the mid-latitude westerlies to steer Danielle generally northeastward at a faster forward speed. There are no significant changes to the forecast track for the first 48-60 h. After that, the forecast has been nudged eastward due to a shift in the guidance envelope. The intensity guidance is still calling for Danielle to strengthen for 72 h or so. Given the possibility of upwelling and the forecast continued slow motion, the guidance might be a bit optimistic on that. The new intensity forecast calls for little change in strength for 12 h or so, followed by slow strengthening on the premise that the storm will move over somewhat warmer water. After 72 h, the storm is likely to interact with an upper-level trough, which could help maintain the intensity even as Danielle moves toward much colder water in the North Atlantic. This trough will also start extratropical transition, although this will likely not be complete by 120 h. FORECAST POSITIONS AND MAX WINDS INIT 03/0900Z 38.0N 43.8W 60 KT 70 MPH 12H 03/1800Z 38.0N 44.1W 60 KT 70 MPH 24H 04/0600Z 38.1N 44.7W 65 KT 75 MPH 36H 04/1800Z 38.5N 44.7W 70 KT 80 MPH 48H 05/0600Z 39.1N 44.3W 75 KT 85 MPH 60H 05/1800Z 39.9N 43.6W 75 KT 85 MPH 72H 06/0600Z 40.7N 42.6W 75 KT 85 MPH 96H 07/0600Z 43.0N 39.5W 70 KT 80 MPH 120H 08/0600Z 46.5N 35.5W 65 KT 75 MPH $$ Forecaster Beven
  11. Lol BULLETIN Tropical Storm Danielle Advisory Number 9 NWS National Hurricane Center Miami FL AL052022 900 AM GMT Sat Sep 03 2022 ...DANIELLE WEAKENS TO A TROPICAL STORM AS IT REMAINS NEARLY STATIONARY... ...EXPECTED TO RE-STRENGTHEN A LITTLE DURING THE NEXT COUPLE OF DAYS... SUMMARY OF 900 AM GMT...0900 UTC...INFORMATION ---------------------------------------------- LOCATION...38.0N 43.8W ABOUT 915 MI...1470 KM W OF THE AZORES MAXIMUM SUSTAINED WINDS...70 MPH...110 KM/H PRESENT MOVEMENT...W OR 270 DEGREES AT 1 MPH...2 KM/H MINIMUM CENTRAL PRESSURE...990 MB...29.24 INCHES WATCHES AND WARNINGS -------------------- There are no coastal watches or warnings in effect. DISCUSSION AND OUTLOOK ---------------------- At 900 AM GMT (0900 UTC), the center of Tropical Storm Danielle was located near latitude 38.0 North, longitude 43.8 West. Danielle is currently nearly stationary. A westward drift is expected today and Sunday, followed by a northward drift on Monday. Maximum sustained winds have decreased to near 70 mph (110 km/h) with higher gusts. Little change in strength is expected today. Some slight strengthening is expected tonight through Monday, and Danielle could regain hurricane strength on Sunday. Tropical-storm-force winds extend outward up to 125 miles (205 km) from the center. The estimated minimum central pressure is 990 mb (29.24 inches). HAZARDS AFFECTING LAND ---------------------- None. NEXT ADVISORY ------------- Next complete advisory at 300 PM GMT. $$ Forecaster Beven
  12. Tropical Storm Danielle Discussion Number 3 NWS National Hurricane Center Miami FL AL052022 900 PM GMT Thu Sep 01 2022 The high-latitude tropical cyclone has had quite the increase in organization today. Recent microwave and visible satellite imagery shows decent banding features and convection wrapping around the low-level center. Subjective Dvorak classifications from TAFB and SAB both estimate Danielle to be a 45-kt system. However, since the storm has continued to improve in appearance, the initial intensity has been increased to 50 kt. Danielle is drifting eastward at 2 kt. A strong anticyclone over the system is creating light and variable steering flow and Danielle should continue to meander for the next few days. In about 4 days, the anticyclone is expected to weaken and move eastward and a mid-latitude trough should turn and accelerate Danielle to the northeast. The NHC track forecast is shifted slightly westward from the previous prediction and is close to the model consensus aids. Atmospheric and oceanic conditions appear to be conducive for additional strengthening during the next few days. The tropical storm is over anomalously warm waters and global model guidance indicates the vertical wind shear should gradually decrease over the next few days. The official intensity forecast has been adjusted upward based on the recent strengthening trend and now shows a peak intensity of 85 kt in 60 hours. Thereafter, when Danielle is forecast to turn northward, it is expected to gradually weaken over cooler water temperatures and increased vertical wind shear. FORECAST POSITIONS AND MAX WINDS INIT 01/2100Z 38.1N 44.5W 50 KT 60 MPH 12H 02/0600Z 38.1N 44.2W 60 KT 70 MPH 24H 02/1800Z 38.0N 44.1W 70 KT 80 MPH 36H 03/0600Z 38.0N 44.3W 75 KT 85 MPH 48H 03/1800Z 38.0N 44.7W 80 KT 90 MPH 60H 04/0600Z 38.2N 45.0W 85 KT 100 MPH 72H 04/1800Z 38.7N 44.9W 85 KT 100 MPH 96H 05/1800Z 40.5N 43.5W 80 KT 90 MPH 120H 06/1800Z 42.5N 41.7W 75 KT 85 MPH $$ Forecaster Bucci/Cangialosi
  13. I know... just we've been waiting for the MDR and rest of the ATL to do something and Danielle way up north shows up
  14. Would be funny to watch Danielle become our first MH
  15. I must say the 5 day map is kinda funny... almost looks like it says shhh
  16. PRELIMINARY LOCAL STORM REPORT NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 401 PM EDT TUE AUG 30 2022 ..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON... ..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE.... ..REMARKS.. 0335 PM TSTM WND DMG GREAT FALLS 39.01N 77.29W 08/30/2022 FAIRFAX VA 911 CALL CENTER A FEW TREES DOWN IN GREAT FALLS. && EVENT NUMBER LWX2204933
  17. Last chance severe for a while .SHORT TERM /TUESDAY THROUGH WEDNESDAY NIGHT/... On Tuesday, a cold front pressing eastward through the Ohio Valley will present an active weather day across the Mid- Atlantic. Downstream of this system, the air mass is likely to remain very warm and humid. Forecast high temperatures are expected to rise into the low 90s with heat indices to around the century mark. Unlike the previous couple of days which had subsidence aloft, increasing lift ahead of the trough will bring more widespread convection to the area. Increasing surface-based CAPEs of around 2,000-2,500 J/kg are noted in the guidance, but with marginal vertical shear profiles. Accordingly, storms may not be terribly organized aside from cells that attain more of a line structure. Any such line segments would promote a damaging wind threat. SPC`s Day 2 convective outlook places most of the area in a Marginal risk for severe weather. Initially storms should ignite along the lee trough during the early afternoon before spreading eastward toward the I-95 corridor. Additionally, some degree of flooding risk exists given PWATs around 1.50-1.75 inches and the potential for repeat convection. WPC highlights the entire area in a Marginal risk for excessive rainfall.
  18. This must be INVESTigated! I'll see myself out now
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