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KF5JRV > WX 19.04.21 15:55l 64 Lines 3029 Bytes #999 (0) @ USBBS
BID : 13848_KF5JRV
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Subj: NWS USA WX Forecast - Apr 19
Path: IZ3LSV<IQ2LB<IK1NHL<CX2SA<OK2PEN<NA7KR<ZL2BAU<GB7YEW<AB0AF<W0ARP<
KF5JRV
Sent: 210419/1135Z 13848@KF5JRV.#NWAR.AR.USA.NA BPQ6.0.20
Short Range Forecast Discussion
NWS Weather Prediction Center College Park MD
408 AM EDT Mon Apr 19 2021
Valid 12Z Mon Apr 19 2021 - 12Z Wed Apr 21 2021
...Snow continues to spread south into central Rockies/High Plains this
eveving before swinging out into the central Plains, Midwest, and the
lower Great Lakes on Tuesday...
...Heavy showers and thunderstorms continue across central Florida...
An upslope snow event is in progress from the northern Rockies to the
northern High Plains as a surge of cold air from Canada continues to
plunge southward. The cold surge will bring rapidly falling temperatures
as well as a quick burst of snow through the northern Rockies/High Plains
today before overspreading the central Rockies into the High Plains later
today. As a low pressure wave forms along the sharp cold front, the snow
will then swing eastward through the central Plains tonight and then
across the Midwest and the lower Great Lakes on Tuesday. The highest
snowfall amounts are expected to occur along the Bighorn Mountains of
north-central Wyoming and along the Front Range of Colorado where over a
foot of snow is predicted. Other mountain peaks such as the Black Hills
of Wyoming and South Dakota, could see snowfall accumulations of over 6
inches. Winter Storm Warnings and Winter Weather Advisories remain in
effect. As the low pressure wave moves across the central Plains towards
the Great Lakes on Tuesday, a few inches of wet snow can be expected to
accumulate in these areas. Unseasonably cold air behind the low will
plunge southward through the southern Plains. Numerous daily record low
temperatures are forecast to be tied or broken by Wednesday morning
especially over the southern Plains.
Meanwhile, active weather is expected to linger across central Florida as
low pressure waves develop along a slow-moving front. Occasional showers,
heavy at times, together with embedded thunderstorms can be expected to
continue through Tuesday. A few storms could turn severe. In addition,
flash flooding will be a concern due to upwards of 5 inches of rain
forecast to fall across central Florida during the next few days. By
Wednesday morning, the rain should slowly be edging into southern Florida.
Much of the lower 48 will experience below average temperatures over the
next few days. The only exceptions will be found across southern Florida,
the Northeast, and along the West Coast where above normal temperatures
remain locked in place. Avalanche Warnings are in effect for the
Washington Cascades as a result of the recent warm spell. In contrast,
Freeze Watches and Warnings across much of the central Plains to the
Midwest. Finally, the risk of wildfire will be elevated over parts of the
interior western U.S. during the next couple of days. Red Flag Warnings
are in effect for parts of Utah into western Colorado.
Kong
Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php
73, Scott KF5JRV
Pmail: KF5JRV @ KF5JRV.#NWAR.AR.USA.NA
Email: KF5JRV@GMAIL.com
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