SPC Dec 12, 2024 0600 UTC Day 1 Convective Outlook
SPC 1200Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1104 PM CST Wed Dec 11 2024 Valid 121200Z - 131200Z ...NO THUNDERSTORM AREAS FORECAST... ...SUMMARY... The risk for thunderstorms appears negligible across the U.S. today through tonight. ...Synopsis... As significant lower/mid-tropospheric cyclogenesis proceeds across northeastern Quebec, models indicate that large-scale mid-level troughing initially encompassing much of the eastern U.S. will begin to lose amplitude later today through tonight. A couple of digging short wave perturbations may maintain broad deep troughing across the Great Lakes and much of the Northeast; however, low amplitude ridging appears
Photo and Video Chronology — December 3, 2024 — Kīlauea summit webcam maintenance
The KWcam on the eastern rim of Kaluapele (Kīlauea caldera) has been sending blurry images due water condensation inside the camera enclosure. On December 3rd, 2024, HVO staff visited the webcam to dry out the enclosure and search for any perforations that may be the source of the leak. USGS photo by H. Winslow. A HVO geologist inspected the KWcam enclosure for potential water entry points and found a weak seal. HVO staff will likely return in the future to make repairs to the enclosure or replace it all together. USGS photo by J. Barnett. HVO staff also visited the
Photo and Video Chronology — November 25, 2024 — Visiting the September 2024 Kīlauea eruption site
With permission from Hawai‘i Volcanoes National Park, team of USGS Hawaiian Volcano Observatory geologists visited the site of the September 2024 Kīlauea middle East Rift Zone eruption. They surveyed, sampled, and documented the new volcanic fissures and features, which formed west of and in Nāpau crater from September 15–20, 2024. This view, taken on Monday, November 25, 2024, around 8 a.m., looks to the east from the west rim of Nāpau Crater. The September 2024 lava flows on the floor of Nāpau Crater are visible in the foreground while Pu‘u‘ō‘ō, active from 1983–2018, is visible in the background. USGS photo
SPC – No watches are valid as of Wed Dec 11 21:31:01 UTC 2024
No watches are valid as of Wed Dec 11 21:31:01 UTC 2024.
SPC – No MDs are in effect as of Wed Dec 11 21:31:01 UTC 2024
No Mesoscale Discussions are in effect as of Wed Dec 11 21:31:01 UTC 2024.
SPC Dec 11, 2024 2000 UTC Day 1 Convective Outlook
SPC 2000Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0159 PM CST Wed Dec 11 2024 Valid 112000Z - 121200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS INTO THIS EVENING OVER THE COASTAL MID-ATLANTIC... ...SUMMARY... Severe wind gusts and a tornado or two are possible from the eastern Carolinas to southern New England. ...20Z Update... Severe probabilities have been trimmed along the western portion of the outlook, and reduced along the southern New England coast. For both areas, widespread stratiform rain has limited destabilization and the overall severe threat. Farther south, severe probabilities
SPC Dec 11, 2024 1930 UTC Day 3 Severe Thunderstorm Outlook
SPC 1930Z Day 3 Outlook Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0102 PM CST Wed Dec 11 2024 Valid 131200Z - 141200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Severe thunderstorms are not expected through Friday night. ...Discussion... A compact shortwave trough near the Four Corners Area should move across the southern Rockies into the central Great Plains. The attendant surface cyclone will be weak, tracking from the Raton Mesa vicinity to eastern KS. Modifying moisture return from the western Gulf will become sufficient for elevated convection by Friday Night across parts of the south-central states. Moderate
SPC Dec 11, 2024 1730 UTC Day 2 Convective Outlook
SPC 1730Z Day 2 Outlook Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1106 AM CST Wed Dec 11 2024 Valid 121200Z - 131200Z ...NO THUNDERSTORM AREAS FORECAST... ...SUMMARY... Thunderstorm probabilities are negligible on Thursday. ...Discussion... A quiescent pattern for thunderstorm activity will envelop much of the CONUS tomorrow. Two areas of sub-10 percent thunderstorm probabilities remain apparent. An Arctic air mass will settle into the Upper Great Lakes. Downstream, lake-effect snow bands will persist with the most organized one expected in the lee of eastern Lake Ontario. A few lightning flashes are possible during the period of
Florida State Watch Office Morning Situation Report for Wednesday, December 11, 2024
Florida State Watch Office Morning Situation Report EOC Activation Level: Level 2 Meteorological Summary: A cold front moving eastward will produce scattered to numerous showers and thunderstorms across the remainder of the Sunshine State today (65-95% chance of rain). An isolated strong to locally severe thunderstorm is possible during the daytime heating hours, and the Storm Prediction Center (SPC) has extended the Marginal Risk (level 1 of 5) for Severe Weather south of the I-4 corridor and along the Southwest Florida Coast. Any stronger or more organized thunderstorm activity may be capable of producing locally damaging wind gusts (45-60 mph)
SPC – No watches are valid as of Wed Dec 11 08:17:02 UTC 2024
No watches are valid as of Wed Dec 11 08:17:02 UTC 2024.