[北半球大陆]美国中部炸弹低气压NA12-0313 - 三月历史级风暴，多地降雪量阵风气压等数据创极值 - WPC:968mb OPC:SW
楼主#更多 发布于：2019-03-14 20:45
Powerful Storm System Continues to Produce Significant Impacts for Large Swaths of the U.S.
An intense storm across the central Plains will continue to bring blizzard conditions to parts of the northern Plains and Rockies through Thursday, where travel remains difficult. Heavy rain, snow melt, and ice jams on rivers have produced widespread flooding across the Upper Midwest. Severe storms with damaging winds, hail, and tornadoes are possible from the Great Lakes to the South.
Short Range Forecast Discussion
NWS Weather Prediction Center College Park MD
405 AM EDT Thu Mar 14 2019
Valid 12Z Thu Mar 14 2019 - 12Z Sat Mar 16 2019
...The strong winter storm to continue to affect portions of the Central
to Northern Plains today with Blizzard conditions continuing...
...Winds will be diminishing across the Southern and Central Plains as the
storm pulls away from these regions...
...Thunderstorms will bring heavy rains, isolated flooding and a severe
weather threat Thursday from the Lower Mississippi Valley into the
Tennessee and Ohio Valleys...
...Much above average temperatures likely east of the Mississippi River
Thursday, across the eastern U.S. Friday...
...Much colder temperatures will spreading into the Mississippi, Tennessee
and Ohio Valleys Friday and the east coast on Saturday...
The intense storm across the mid section of the nation that has been
responsible for heavy snows, blizzard conditions and widespread wind gusts
over hurricane force will be pressing northeastward through the Upper
Mississippi Valley into the Upper Great Lakes on Thursday. While the
storm has reached its lowest pressure and will gradually weaken over the
next few days, strong winds will continue on the west side of the storm
across portions of the Central and Northern Plains. Blizzard conditions
are expected to continue into the first half of Thursday over northeast
Colorado and for most of the day from eastern Wyoming, across most of
Nebraska, South Dakota, eastern North Dakota into northwest Minnesota.
Travel will remain difficult and life threatening across these areas, with
improving conditions Thursday night into Friday as the storm pushes
farther off to the northeast.
As the strong storm pushes northeastward today into the Upper Mississippi
Valley, winds will be lessening across the Central to Southern Plains that
experienced widespread wind gust over hurricane force during the past 24
hours. High wind warnings remain in effect into Thursday morning for
southeast Colorado and western Kansas, but overall a much smaller area of
strong wind gusts expected Thursday as the storm moves away from this
The associated cold front with this strong storm will continue to be a
focus for thunderstorm activity from the Lower Mississippi Valley into the
Tennessee and Ohio Valleys. Heavy rains, isolated flooding and severe
weather are possible with these thunderstorms across these regions.
A taste of spring temperatures likely ahead of the above mentioned cold
front front on Thursday for all areas to the east of the Mississippi River
and for areas east of the Appalachians on Friday. Much colder
temperatures expected in the wake of this front today from the Great
Basin, Rockies into the Plains. These colder temperatures will be
spreading eastward on Friday into the Mississippi, Ohio and Tennessee
Valleys and into much of the eastern U.S. on Saturday.
Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php
昨天注意到这个系统了 但是当时情况就像下图这样 看起来似乎不强 我也就没当回事 当时也不在OPC的天气图范围里 结果是个猛货
...Potential Low Pressure State Record Set at Lamar, CO Yesterday...
The National Weather Service in Pueblo, the Colorado Climate Center,
the Weather Prediction Center, and the National Center for
Environmental Information are working together to determine if the
970.4 mb recorded low pressure at Lamar, Colorado on March 13, 2019
is a new state record. Information will be made available over the
coming days as to whether or not a new state record has occurred.
.OVER FORECAST WATERS NW OF A LINE FROM 36N75W TO 41N71W WINDS
TO 25 KT. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST LOW INLAND 56N70W 979 MB. NW OF A LINE FROM
34N73W TO 40N65W TO 45N58W WINDS 25 TO 35 KT. SEAS 8 TO 11 FT.
ELSEWHERE N AND W OF A LINE FROM 32N78W TO 34N71W TO 40N60W TO
47N53W...AND WITHIN 780 NM E AND 540 NM NE QUADRANTS WINDS 20 TO
30 KT. SEAS TO 10 FT.
.48 HOUR FORECAST LOW 59N58W 979 MB. BETWEEN 480 NM AND 900 NM
SE QUADRANT...AND WITHIN 240 NM N OF A LINE FROM 60N60W TO
62N55W TO 59N46W...AND NW OF A LINE FROM 42N54W TO 46N48W WINDS
25 TO 40 KT. SEAS 10 TO 17 FT. ELSEWHERE N AND NW OF A LINE FROM
32N71W TO 35N60W TO 42N50W TO 49N35W...AND SE OF A LINE FROM
56N55W TO 61N41W TO 61N35W WINDS 20 TO 30 KT. SEAS 8 TO 13 FT.