Posted on Dec 15, 2017
WPC Sea-level Pressures and Fronts through Day 7
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A weak cold has passed here in the Piedmont. The strongest weather this evening is associated with a pair of Lows in coastal NC. As these showers and frontal boundary slide off the coast, we will have winds from the south both from the High and the following Low.
By mid-week another weak cold front moves into the area (Piedmont), increasing winds and rain chances up to 90%. Cyclogenesis along the cold frontal boundary would naturally slow the front. This situation is fluid, meaning thermal profiles can affect the amount of cooling or warming. Stay tuned!
Meteorologist Mike Scott
(Larry Olson)
DoubleDownWeather Services
World of Outlaws, Dirtvision
World Racing Group
***************************************************************************
Winter Weather Advisory
URGENT - WINTER WEATHER MESSAGE
National Weather Service Missoula MT
149 PM MST Fri Dec 15 2017
MTZ [login to see] 00-
/O.CON.KMSO.WW.Y.0044.171216T0000Z-171216T1800Z/
Missoula/Bitterroot Valleys-Potomac/Seeley Lake Region-
149 PM MST Fri Dec 15 2017
...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 5 PM THIS
AFTERNOON TO 11 AM MST SATURDAY...
* WHAT...Snow expected. Plan on slippery road conditions. Total
snow accumulations of 2 to 4 inches, with localized amounts up
to 15 inches, are expected.
* WHERE...Bitterroot Valley, Missoula, Highway 200 Bonner to
Greenough, Highway 83 Seeley Lake to Condon, and I-90 East
Missoula to Bearmouth.
* WHEN...From 5 PM this afternoon to 11 AM MST Saturday.
* ADDITIONAL DETAILS...Be prepared for reduced visibilities at
times.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Be prepared for snow covered
roads and limited visibilities, and use caution while driving.
The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.
***********************************************************
Hazardous Weather Outlook
Hazardous Weather Outlook...UPDATED
National Weather Service Riverton WY
557 AM MST Fri Dec 15 2017
WYZ001>020-022>030-161300-
Yellowstone National Park-Absaroka Mountains-Cody Foothills-
North Big Horn Basin-Southwest Big Horn Basin-
Southeast Big Horn Basin-Owl Creek and Bridger Mountains-
Bighorn Mountains West-Bighorn Mountains Southeast-
Northeast Johnson County-Southeast Johnson County-
Teton and Gros Ventre Mountains-Jackson Hole-
Wind River Mountains West-Wind River Mountains East-
Upper Wind River Basin-Wind River Basin-Lander Foothills-
Green Mountains and Rattlesnake Range-
Natrona County Lower Elevations-Casper Mountain-Star Valley-
Salt River and Wyoming Ranges-Upper Green River Basin Foothills-
Upper Green River Basin-South Lincoln County-
Rock Springs and Green River-Flaming Gorge-East Sweetwater County-
557 AM MST Fri Dec 15 2017
...High Wind Warning Today for the Cody Foothills...
This Hazardous Weather Outlook is for Western and Central Wyoming.
.DAY ONE...Today and Tonight.
Strong to High wind at times over the Cody Foothills today
especially from just south of Cody to Clark. Snow is expected to
impact western Wyoming late tonight.
.DAYS TWO THROUGH SEVEN...Saturday through Thursday.
Saturday through Saturday night...Snow will be spilling east of
the Divide Saturday morning. The snow is expected to taper off
from north to south Saturday night. This system has the potential
to bring significant snowfall to portions of the area. Currently
the best chance of heavy snowfall is across central Wyoming.
Please stay tuned for more details on this potential winter storm.
Wednesday and Thursday...Another storm system will bring another
chance of snowfall, and much colder air to the area.
.SPOTTER INFORMATION STATEMENT...
Spotters are encouraged to report any snowfall amounts. Thank you.
$$
TEAM RIVERTON
Winter Weather Advisory
URGENT - WINTER WEATHER MESSAGE
National Weather Service Riverton WY
614 PM MST Fri Dec 15 2017
...Snow in the western mountains tonight, spreading east Saturday
and Saturday night...
.A cold front will spread snow from northwest to southeast across
the area late tonight and Saturday morning. Snow will then begin
to taper off from the northwest Saturday night.
Snow packed, icy roads with poor visibility will hinder travel
across much of the area Saturday and Saturday night lingering
into Sunday morning.
WYZ [login to see] 00-
/O.CON.KRIW.WW.Y.0044.171216T1200Z-171217T1200Z/
Natrona County Lower Elevations-Casper Mountain-
Including the city of Casper
614 PM MST Fri Dec 15 2017
...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 5 AM SATURDAY
TO 5 AM MST SUNDAY...
* WHAT...Snow expected. Plan on slippery road conditions. Total
snow accumulations of 3 to 5 inches in lower elevations, with
5 to 10 inches on Casper Mountains, are expected.
* WHERE...Natrona County Lower Elevations and Casper Mountain.
* WHEN...5 AM Saturday to 5 AM Sunday.
* ADDITIONAL DETAILS...Be prepared for reduced visibilities at
times.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Be prepared for snow covered
roads and limited visibilities, and use caution while driving.
The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.
******************************************************************
.SYNOPSIS FOR MID ATLC WATERS...Low pressure just off the
Virginia Capes will move NE and rapidly intensify tonight,
clearing E of the waters Sat. High pressure will build behind
the departing low Sat into Sat night, move over the waters
Sun, then shift SE of the area Sun night into Mon. A weak cold
front will move into the northern waters Sat night, then stall
across the central portions Sun and Sun night. A weak low will
form along the front Mon, then move E of the waters Mon night
while pulling the front across the remainder of the waters.
Another cold front approaches from the NW Tue and Tue night,
then passes SE across the waters Wed and Wed night.
$$
ANZ910-160815-
East of 69W and south of 39N to 250 nm offshore-
400 PM EST Fri Dec 15 2017
STORM WARNING
TONIGHT
E winds 10 to 20 kt, becoming W to SW and increasing
to 40 to 50 kt. Winds then becoming W to NW 30 to 40 kt late. Seas
5 to 7 ft, building to 12 to 20 ft...highest E. Chance of rain.
SAT
W winds diminishing to 30 to 35 kt, then becoming W to NW 25
to 30 kt. Seas becoming 12 to 17 ft.
SAT NIGHT
W to NW winds 25 to 35 kt. Seas 11 to 17 ft. Scattered
showers.
SUN
NW winds 20 to 30 kt, diminishing to 15 to 20 kt. Seas 10 to
16 ft.
SUN NIGHT
NW winds 10 to 20 kt, diminishing to 5 to 15 kt. Seas
subsiding to 6 to 10 ft.
MON
Variable winds less than 10 kt, becoming W 15 to 25 kt. Seas
subsiding to 4 to 7 ft.
MON NIGHT
W winds 15 to 25 kt. Seas 4 to 8 ft.
TUE
W winds 15 to 25 kt. Seas 5 to 8 ft.
TUE NIGHT
W winds 20 to 30 kt. Seas building to 6 to 11 ft.
WED
W to NW winds 20 to 30 kt. Seas building to 9 to 13 ft.
WED NIGHT
NW winds 20 to 30 kt. Seas 8 to 13 ft.
By mid-week another weak cold front moves into the area (Piedmont), increasing winds and rain chances up to 90%. Cyclogenesis along the cold frontal boundary would naturally slow the front. This situation is fluid, meaning thermal profiles can affect the amount of cooling or warming. Stay tuned!
Meteorologist Mike Scott
(Larry Olson)
DoubleDownWeather Services
World of Outlaws, Dirtvision
World Racing Group
***************************************************************************
Winter Weather Advisory
URGENT - WINTER WEATHER MESSAGE
National Weather Service Missoula MT
149 PM MST Fri Dec 15 2017
MTZ [login to see] 00-
/O.CON.KMSO.WW.Y.0044.171216T0000Z-171216T1800Z/
Missoula/Bitterroot Valleys-Potomac/Seeley Lake Region-
149 PM MST Fri Dec 15 2017
...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 5 PM THIS
AFTERNOON TO 11 AM MST SATURDAY...
* WHAT...Snow expected. Plan on slippery road conditions. Total
snow accumulations of 2 to 4 inches, with localized amounts up
to 15 inches, are expected.
* WHERE...Bitterroot Valley, Missoula, Highway 200 Bonner to
Greenough, Highway 83 Seeley Lake to Condon, and I-90 East
Missoula to Bearmouth.
* WHEN...From 5 PM this afternoon to 11 AM MST Saturday.
* ADDITIONAL DETAILS...Be prepared for reduced visibilities at
times.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Be prepared for snow covered
roads and limited visibilities, and use caution while driving.
The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.
***********************************************************
Hazardous Weather Outlook
Hazardous Weather Outlook...UPDATED
National Weather Service Riverton WY
557 AM MST Fri Dec 15 2017
WYZ001>020-022>030-161300-
Yellowstone National Park-Absaroka Mountains-Cody Foothills-
North Big Horn Basin-Southwest Big Horn Basin-
Southeast Big Horn Basin-Owl Creek and Bridger Mountains-
Bighorn Mountains West-Bighorn Mountains Southeast-
Northeast Johnson County-Southeast Johnson County-
Teton and Gros Ventre Mountains-Jackson Hole-
Wind River Mountains West-Wind River Mountains East-
Upper Wind River Basin-Wind River Basin-Lander Foothills-
Green Mountains and Rattlesnake Range-
Natrona County Lower Elevations-Casper Mountain-Star Valley-
Salt River and Wyoming Ranges-Upper Green River Basin Foothills-
Upper Green River Basin-South Lincoln County-
Rock Springs and Green River-Flaming Gorge-East Sweetwater County-
557 AM MST Fri Dec 15 2017
...High Wind Warning Today for the Cody Foothills...
This Hazardous Weather Outlook is for Western and Central Wyoming.
.DAY ONE...Today and Tonight.
Strong to High wind at times over the Cody Foothills today
especially from just south of Cody to Clark. Snow is expected to
impact western Wyoming late tonight.
.DAYS TWO THROUGH SEVEN...Saturday through Thursday.
Saturday through Saturday night...Snow will be spilling east of
the Divide Saturday morning. The snow is expected to taper off
from north to south Saturday night. This system has the potential
to bring significant snowfall to portions of the area. Currently
the best chance of heavy snowfall is across central Wyoming.
Please stay tuned for more details on this potential winter storm.
Wednesday and Thursday...Another storm system will bring another
chance of snowfall, and much colder air to the area.
.SPOTTER INFORMATION STATEMENT...
Spotters are encouraged to report any snowfall amounts. Thank you.
$$
TEAM RIVERTON
Winter Weather Advisory
URGENT - WINTER WEATHER MESSAGE
National Weather Service Riverton WY
614 PM MST Fri Dec 15 2017
...Snow in the western mountains tonight, spreading east Saturday
and Saturday night...
.A cold front will spread snow from northwest to southeast across
the area late tonight and Saturday morning. Snow will then begin
to taper off from the northwest Saturday night.
Snow packed, icy roads with poor visibility will hinder travel
across much of the area Saturday and Saturday night lingering
into Sunday morning.
WYZ [login to see] 00-
/O.CON.KRIW.WW.Y.0044.171216T1200Z-171217T1200Z/
Natrona County Lower Elevations-Casper Mountain-
Including the city of Casper
614 PM MST Fri Dec 15 2017
...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 5 AM SATURDAY
TO 5 AM MST SUNDAY...
* WHAT...Snow expected. Plan on slippery road conditions. Total
snow accumulations of 3 to 5 inches in lower elevations, with
5 to 10 inches on Casper Mountains, are expected.
* WHERE...Natrona County Lower Elevations and Casper Mountain.
* WHEN...5 AM Saturday to 5 AM Sunday.
* ADDITIONAL DETAILS...Be prepared for reduced visibilities at
times.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Be prepared for snow covered
roads and limited visibilities, and use caution while driving.
The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.
******************************************************************
.SYNOPSIS FOR MID ATLC WATERS...Low pressure just off the
Virginia Capes will move NE and rapidly intensify tonight,
clearing E of the waters Sat. High pressure will build behind
the departing low Sat into Sat night, move over the waters
Sun, then shift SE of the area Sun night into Mon. A weak cold
front will move into the northern waters Sat night, then stall
across the central portions Sun and Sun night. A weak low will
form along the front Mon, then move E of the waters Mon night
while pulling the front across the remainder of the waters.
Another cold front approaches from the NW Tue and Tue night,
then passes SE across the waters Wed and Wed night.
$$
ANZ910-160815-
East of 69W and south of 39N to 250 nm offshore-
400 PM EST Fri Dec 15 2017
STORM WARNING
TONIGHT
E winds 10 to 20 kt, becoming W to SW and increasing
to 40 to 50 kt. Winds then becoming W to NW 30 to 40 kt late. Seas
5 to 7 ft, building to 12 to 20 ft...highest E. Chance of rain.
SAT
W winds diminishing to 30 to 35 kt, then becoming W to NW 25
to 30 kt. Seas becoming 12 to 17 ft.
SAT NIGHT
W to NW winds 25 to 35 kt. Seas 11 to 17 ft. Scattered
showers.
SUN
NW winds 20 to 30 kt, diminishing to 15 to 20 kt. Seas 10 to
16 ft.
SUN NIGHT
NW winds 10 to 20 kt, diminishing to 5 to 15 kt. Seas
subsiding to 6 to 10 ft.
MON
Variable winds less than 10 kt, becoming W 15 to 25 kt. Seas
subsiding to 4 to 7 ft.
MON NIGHT
W winds 15 to 25 kt. Seas 4 to 8 ft.
TUE
W winds 15 to 25 kt. Seas 5 to 8 ft.
TUE NIGHT
W winds 20 to 30 kt. Seas building to 6 to 11 ft.
WED
W to NW winds 20 to 30 kt. Seas building to 9 to 13 ft.
WED NIGHT
NW winds 20 to 30 kt. Seas 8 to 13 ft.
WPC Sea-level Pressures and Fronts through Day 7
Posted from wpc.ncep.noaa.gov
Snow Sports
Meteorology
Water
Posted 7 y ago
Responses: 4
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SSgt (Join to see)
Lake effect storms can be brutal. Add a front, a low or upper air pertubation, it is on! lol
(0)
(0)
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1
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Thank you for the weather share, we're supposed to get into the 40's starting tomorrow.
(1)
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