SPC Particularly Dangerous Situation (PDS) Tornado/Severe Thunderstorm Watch Storm Prediction Center
- SPC PDS Severe Thunderstorm Watch 293on June 14, 2023 at 6:43 pm
WW 293 SEVERE TSTM AR LA MS 141840Z - 150100Z URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 293 NWS Storm Prediction Center Norman OK 140 PM CDT Wed Jun 14 2023 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Extreme southeast Arkansas Northeast Louisiana Central Mississippi * Effective this Wednesday afternoon and evening from 140 PM until 800 PM CDT. ...THIS IS A PARTICULARLY DANGEROUS SITUATION... * Primary threats include... Widespread damaging winds and scattered significant gusts to 90 mph likely Scattered large hail and isolated very large hail events to 3 inches in diameter likely A few tornadoes likely SUMMARY...A supercell cluster is evolving into a bow echo along the Louisiana/Arkansas border, and this cluster will likely persist across the remainder of northern Louisiana into central Mississippi through the afternoon. A derecho-producing event is probable with intense […]
SPC Forecast Products Storm Prediction Center
- SPC - No watches are valid as of Thu Nov 30...on November 30, 2023 at 1:37 am
No watches are valid as of Thu Nov 30 01:38:02 UTC 2023.
- SPC - No MDs are in effect as of Thu Nov 30...on November 30, 2023 at 1:37 am
No Mesoscale Discussions are in effect as of Thu Nov 30 01:38:02 UTC 2023.
- SPC Nov 30, 2023 0100 UTC Day 1 Convective Outlookon November 30, 2023 at 1:02 am
SPC 0100Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0658 PM CST Wed Nov 29 2023 Valid 300100Z - 301200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Thunderstorms will be possible tonight across parts of the Desert Southwest, and in the southern Plains. No severe weather is expected. ...DISCUSSION... A mid-level trough will move through the Desert Southwest this evening. Ahead of this feature, large-scale ascent will increase in a relatively steep lapse rate environment. In response, thunderstorm development will be possible this evening from parts of north-central Arizona into western and central New Mexico. Further to the east, moisture advection will take place as the trough approaches in parts of central and eastern Texas tonight. In response, isolated to scattered thunderstorms will likely develop after midnight. However, largely due to weak instability, a severe threat is not expected across the continental United […]