mardi 26 avril 2016
Apr 26, 2016 0600 UTC Day 1 Convective Outlook,,,,,,,http://www.spc.noaa.gov/products/outlook/day1otlk.html
DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK 1248 AM CDT TUE APR 26 2016 VALID 261200Z - 271200Z ...THERE IS A MDT RISK OF SVR TSTMS FROM PORTIONS OF SRN NEB INTO KS AND OK... ...THERE IS AN ENH RISK OF SVR TSTMS FROM THE CNTRL PLAINS SWD INTO CNTRL TX... ...THERE IS A SLGT RISK OF SVR TSTMS ACROSS THE CNTRL AND SRN PLAINS INTO THE LOWER MO VALLEY... ...THERE IS A SLGT RISK OF SVR TSTMS FOR PARTS OF THE MID-ATLANTIC STATES... ...THERE IS A MRGL RISK OF SVR TSTMS FROM THE CNTRL U.S. INTO THE OH VALLEY AND MID-ATLANTIC STATES... ...SUMMARY... SIGNIFICANT SEVERE THUNDERSTORMS WILL BE POSSIBLE ACROSS PARTS OF THE SOUTHERN AND CENTRAL GREAT PLAINS THIS AFTERNOON INTO THE NIGHTTIME HOURS. TORNADOES...SOME STRONG...WILL BE POSSIBLE...IN ADDITION TO VERY LARGE HAIL AND DAMAGING WINDS. ADDITIONAL ISOLATED STRONG TO SEVERE STORMS ARE POSSIBLE ACROSS PARTS OF THE OHIO VALLEY TO THE MIDDLE ATLANTIC COAST REGION.
lundi 25 avril 2016
Severe Thunderstorms are expected to develop during the mid to late afternoon hours mainly near and along a Bowie to Stephenville to Hamilton line along a sharpening dryline. Storms that initially develop along the dryline will have the potential to produce all modes off severe weather including tornadoes, large hail and destructive winds. The most likely time frame for storm development along the dryline will be during the mid to late afternoon hours. Through the late afternoon and evening hours, initial storms that developed in the afternoon will likely congeal into a line that should move eastward across North and Central TX. The main hazards with the line of storms will be destructive straight line winds and large hail. There will be a slightly lower risk for tornadoes, but the potential is non-zero. Isolated flash flooding will be possible, especially with slow moving storms mainly during the overnight hours.
Severe storms are expected to form Tuesday afternoon and continue through the evening and into the night. The strongest storms may produce hail larger than baseballs, damaging winds, and tornadoes. There is still some uncertainty regarding how many storms will form initially, but higher confidence in storms becoming widespread east of Interstate-35. In any case, it will be very important to pay close attention to the weather on Tuesday.
Mostly sunny skies and temperatures in the 70s are expected today. Tuesday will also be warm with temperatures in the mid 60s north to around 80 south, but there is also a chance for severe thunderstorms. Large hail, strong winds and isolated tornadoes are possible during the afternoon and evening hours.
samedi 23 avril 2016
|This is tomorrow's forecast for organized severe thunderstorms over the contiguous United States. Please read the description of the risk categories for further information. The latest Day 2 Outlook is available as well as all Outlooks that have been issued today.||Tomorrow's Outlook|
|This is the day after tomorrow's (day 3) forecast for organized severe thunderstorms over the contiguous United States. Please read the description of the risk categories for further information. The latest Day 3 Outlook is available as well as all Outlooks that have been issued today.||Day 3 Outlook|
|This is the day 4-8 forecast for organized severe thunderstorms over the contiguous United States. The latest Day 4-8 Outlook is available as well as all Outlooks that have been issued today.Note: A severe weather area depicted in the Day 4-8 period indicates a 30% or higher probability for severe thunderstorms (e.g. a 30% chance that a severe thunderstorm will occur within 25 miles of any point).||Day 4-8 Outlook|