SPC Dec 21, 2024 1300 UTC Day 1 Convective Outlook
SPC 1300Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0650 AM CST Sat Dec 21 2024 Valid 211300Z - 221200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Isolated thunderstorms are possible this morning into early afternoon across parts of coastal Oregon and northern California. ...Coastal OR/northern CA... A potent mid to upper-level shortwave trough will move ashore the northern CA/OR coast and continue northeastward into the southern Canadian Rockies/northern Rockies vicinity through late tonight. Weak thunderstorm activity embedded within a warm-air advection rain shield will continue moving into the coastal range mountains this morning before
SPC Dec 21, 2024 Day 4-8 Severe Weather Outlook
Day 4-8 Outlook Day 4-8 Convective Outlook NWS Storm Prediction Center Norman OK 0322 AM CST Sat Dec 21 2024 Valid 241200Z - 291200Z ...DISCUSSION... A more active southern-stream pattern is expected next week with several lower latitude troughs crossing the southern tier, along with some northward increase in low-level moisture across parts of Texas to the Lower Mississippi Valley and Gulf Coast. On Tuesday/Day 4, one such shortwave trough should influence increasing thunderstorm potential across south-central to east/southeast Texas. Some severe risk could materialize Tuesday, but it appears that overall buoyancy will be weak with the severe potential currently
SPC Dec 21, 2024 0100 UTC Day 1 Convective Outlook
SPC 0100Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0644 PM CST Fri Dec 20 2024 Valid 210100Z - 211200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Isolated thunderstorms are possible along the northern California coast early morning Saturday. ...Northern CA coast... An amplified upper trough will move northeast and approach the Pacific Northwest coast through 12Z Saturday. This will yield a pronounced low-level warm conveyor to overspread the adjacent offshore waters. This forcing for ascent in conjunction with an ample buoyancy plume has supported scattered to widespread thunderstorms around 500-600 miles offshore. This buoyancy
Florida State Watch Office Daily Incident Report for Friday, February 21, 2020
EOCSWOC Normal EOCSWOC 2 511 2020-02-21T11:55:00Z 2020-02-21T11:55:00Z 8 1711 10032 334 2 11741 16.00 Clean Clean false false false false EN-US X-NONE X-NONE /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin-top:0in; mso-para-margin-right:0in; mso-para-margin-bottom:8.0pt; mso-para-margin-left:0in; line-height:107%; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri",sans-serif; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:"Times New Roman"; mso-bidi-theme-font:minor-bidi;} FLORIDA DIVISION OF EMERGENCY MANAGEMENTSTATE WATCH OFFICEDAILY INCIDENT REPORT Incident Number: 2020-1100 Incident Name: River Flood Warning (Chattahoochee River at Columbia L&D) Occurred: 2/21/2020 00:07 ET Reported to SWO: 2/21/2020 00:07 ET Affecting: Jackson Involving: Weather Advisories Summary: River Flood Warning issued for the Chattahoochee River at Columbia
SPC Nov 21, 2024 2000 UTC Day 1 Convective Outlook
SPC 2000Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0144 PM CST Thu Nov 21 2024 Valid 212000Z - 221200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Severe thunderstorms are not expected through tonight. ...Synopsis... A line of convective rain/show showers continues across the Appalachians with occasional lightning flashes. This will persist for a few more hours before weakening late this afternoon as the boundary layer cools and low-level lapse rates weaken. Lightning is expected to remain offshore near the New England coast and the Pacific Northwest coast and therefore, the thunder line has been
SPC Nov 21, 2024 1930 UTC Day 3 Severe Thunderstorm Outlook
SPC 1930Z Day 3 Outlook Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0129 PM CST Thu Nov 21 2024 Valid 231200Z - 241200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Severe thunderstorms appear unlikely across the CONUS Saturday. ...Synopsis... Mid-level flow across the CONUS is forecast to become more zonal with time as prominent troughing on either coast gradually deamplifies. Ridging over the central CONUS will weaken and shift eastward as the East Coast trough moves offshore. To the west, strong mid-level flow will move inland across the Pacific Northwest and northern Rockies as the upper low cuts
SPC Nov 21, 2024 1730 UTC Day 2 Convective Outlook
SPC 1730Z Day 2 Outlook Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1121 AM CST Thu Nov 21 2024 Valid 221200Z - 231200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... A few thunderstorms are possible along the Pacific Northwest Coast Friday. Severe storms are not expected. ...Synopsis... Amplified mid-level flow is likely over much of the CONUS Friday, with a deep upper low off the East Coast and a similarly deep trough off the West Coast. Between the two lows, a shortwave ridge will slowly migrate eastward over the central Plains. At the surface, a low and trailing
SPC Nov 21, 2024 Day 4-8 Severe Weather Outlook
Day 4-8 Outlook Day 4-8 Convective Outlook NWS Storm Prediction Center Norman OK 0345 AM CST Thu Nov 21 2024 Valid 241200Z - 291200Z ...DISCUSSION... Models indicate a relatively strong zonal pattern over much of the CONUS for Sun/D4 into Mon/D5, with a shortwave trough skirting the Great Lakes area. Then, through the Thu/D8 period, there is a possibility of a low-amplitude trough amplification within this strong belt of flow, moving across the southern Plains and Southeast. Predictability for this later scenario is low at this time, as there is little run-to-run consistency. However, the air mass over the western
SPC Nov 21, 2024 0830 UTC Day 3 Severe Thunderstorm Outlook
SPC 0830Z Day 3 Outlook Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0148 AM CST Thu Nov 21 2024 Valid 231200Z - 241200Z ...NO THUNDERSTORM AREAS FORECAST... ...SUMMARY... Thunderstorms appear unlikely across the USA on Saturday. ...Synopsis... A temporary/weakening upper ridge will exist over the Plains, with a departing trough over the Northeast and a broad region of west/southwest flow aloft over the West. By 12Z Sunday, this ridge will all but disappear due in part to an upper wave from MT into ND, and continued height falls across the West. The beginnings of moisture return will
SPC Nov 21, 2024 0700 UTC Day 2 Convective Outlook
SPC 0700Z Day 2 Outlook Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1212 AM CST Thu Nov 21 2024 Valid 221200Z - 231200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... A few thunderstorms are possible along the Pacific Northwest Coast on Friday. ...Synopsis... A large, deep upper low will exist over the northeast Friday morning, and will gradually weaken as it drifts east through the period. Meanwhile, an upper ridge will slowly shift east from the Rockies into the Plains, while yet another trough pushes across the Pacific Northwest region late. Substantial northwest surface winds will maintain relatively