Scientists predict seventh consecutive hurricane season above average The National Weather Service’s Storm Prediction Center issued a level 3 of 5 “enhanced risk” for severe weather on Monday, Tuesday and Wednesday, citing the possibility of some strong tornadoes. Uncertainty is on the roof about the outbreak, with an “explosion or collapse” likely for many Tuesdays with equal chances for blue skies and catastrophic storms. Seventy million people are at risk of severe storms by Wednesday. Behind the storms, a dry gaseous mass is surfing with stormy winds in the High Plains, leading to “extremely critical” fire weather concerns. Ignition will occur easily, increasing the risk of uncontrolled human-induced fires. On the northwest side of the system, ambient humidity will overlap with the cold Canadian air being pulled south in the aftermath of the widespread storm. This will throw one foot or more of snow into parts of the High Plains, which will be combined with winds blowing over 40 mph to create a blizzard. Regulation: An approaching upper air disturbance will lead to high cooling temperatures. This will help destabilize the lower atmosphere, as much gentler surface air can be lifted into the cold cooling at high altitudes. These ascending air pockets will turn into strong to strong storms that will pose a risk of catastrophic linear winds, large to very large hailstorms and tornadoes, which could be strong. A significant push to the surface is a dry line, or boundary, between dry air from the southwest desert and moisture-rich air flowing north from the Gulf of Mexico. The resulting collision of tropical humidity and desert drought will enhance the development of strong storms. Other boundaries, such as the hot and cold fronts, will also act as thunderstorms. Monday: Today’s risk of severe weather will be maximized over Arkansas along Interstate 40. Cities such as Fort Smith, Jonesboro and Russellville, Ark. Level 2 of 5 light hazard covers a wider area from Waco, Texas and Dallas to Jackson, Tenn., and southern Illinois. Thunderstorms will form in the afternoon, along a rising and weakening cold front, but these storms will be linear, meaning that mainly catastrophic winds are expected. In front of the front, however, particularly in eastern Oklahoma, northeastern Texas along Interstate 30, and in central-central Arkansas, some solitary, discrete rotating thunderstorms known as superhighs are possible. Assuming that they are formed, they will not have to compete with neighboring cells, allowing them to take advantage of the full mania of the atmosphere. In addition to linear winds, which will lead to the possibility of heavy hail and tornadoes. Tuesday: Tuesday seems more and more worrying. A vast area from Iowa to central Texas is below the 3 in 5 enhanced risk level, including major cities such as Dallas, Oklahoma City, Kansas City, Omaha and Des Moines. Tornadoes are likely to occur with the most severe storms, and the Storm Forecasting Center warns that “some of the tornadoes could be strong.” It is not clear how many storms will form and when. A strong “cap” or hot air cap, about a mile above the ground, will prevent the surface air from being able to rise for most of the day, preventing strong storms from forming. This will be until very late. However, it is not clear if the lid will break completely. If this happens, instability or “juice” will be released explosively in the form of dangerous storms and tornadoes. Otherwise, a blue sky may prevail during the day, before a thunderstorm develops at night and sweeps east. Most likely to break the lid during the day And storms may erupt along the northern shoreline of Iowa and eastern Nebraska along the Missouri River. The forecast will improve over time and may change depending on how strong the ceiling is. Wednesday: Extreme levels of flood danger were announced in the area on Wednesday, with the risk of swallowing up much of the lower and middle Mississippi Valley. Includes areas between Chicago and northern Louisiana, along with cities such as Indianapolis, Memphis, Little Rock, St. Louis and Sraveport, LA. The large-scale storm system will have a huge hot field, or a bit of warmth, leading north in front of an approaching cold front. This means a corresponding extended zone of severe weather risk. A jet stream dive will approach from the west, with high-level winds howling north. This will transmit a change in wind speed or direction with altitude, known as wind shear, which will cause the storms to rotate. This will pose a threat to tornadoes over a wide area if discrete cells form in front of the cold front. Some of the tornadoes could be powerful. Otherwise, hail, wind and some short tornadoes will accompany a QLCS, or a squall line with built-in tornadoes, which will run east along the front.
Potentially historic blizzard Monday morning update: . Snowstorm warning in effect for the west and most of the central SW Ποσ The amount of snowfall can exceed 24 “in some places, with gusts of up to 50 mph 🤔 Uncertainty in the far south central and JRV due to more rainfall with possible snow reduction #ndwx pic.twitter.com/AZ95CknLSC – NWS Bismarck (@NWSBismarck) April 11, 2022 The all-chaotic low-pressure mother system will erupt from the Colorado Front Range and glide over the Nebraska Sandhills on Tuesday morning before moving to Minnesota early Wednesday. At the rear, moisture drifting northwest around the counterclockwise low will fall into subcooling of air crashing south. The result will be dense snow. In Bismarck, ND, a foot and a half of snow could fall by Wednesday morning, approaching or overshadowing the 17.8 inches that fell in mid-April 2013 to become the largest April blizzard in the city on record. The Winter Storm Severity Index (WSSI) is another way to look at the potential severity of a winter storm. A large part of the west / central NW could see extreme effects with the coming storm, with major effects in most of the rest of the region. Complete the final preparations today! #ndwx pic.twitter.com/p60aGWo0WN – NWS Bismarck (@NWSBismarck) April 11, 2022 Snow will break in parts of Wyoming and Montana on Tuesday morning, becoming moderate to dense at times and extending to cover. It will shift to North Dakota and North South Dakota during the afternoon before rotating in northwest Minnesota and ending with snowfall from the north on Wednesday. The National Meteorological Agency in Bismarck warns that “travel should be limited to emergencies”. Strong winds in the echo of the system could continue to snow long after the end of the rain, prolonging the risk of blizzard and low visibility.
“Extremely critical” fire time Extremely critical weather conditions are expected on Tuesday in parts of the central and southern high plains. Extended winds of 25-40 mph with gusts up to 50+ mph will overlap with very dry RH 5-10% and extremely dry fuels. See for more information. pic.twitter.com/zOC5jDCSIh – NWS Storm Prediction Center (@NWSSPC) April 11, 2022 The red flag warnings, which represent a fire hazard, extend from Texas Trans-Pecos to southern Nebraska. In Texas, relative humidity behind the dry line will drop to about 6% on Tuesday, with gale-force winds accelerating to more than 30 mph. Across the High Plains, gusts of wind can exceed 60 mph on Tuesday afternoon. The Storm Forecast Center has outlined areas of Texas and Oklahoma and neighboring southwestern Kansas as an “extremely critical” fire threat. “A significant outbreak of fire is possible throughout the southern and central High Plains [on] Tuesday “, they write.