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> April 17th-19th Plains/MW/GL Winter Storm
joseph507123
post Apr 14 2018, 06:15 AM
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Winter still endless.






--------------------
2018

Severe Thunderstorm Watches: 3

Tornado Watches: 0

Severe Thunderstorm Warnings: 1

Tornado Warnings: 0

Largest hail: .25''

Strongest Wind Gust: NA

Warmest Temperature: 102F

90F+ days: 13

Highest Heat Index: 108F

Heat advisories: 6

Excessive Heat Warnings: 1
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grace
post Apr 16 2018, 08:48 AM
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6z 3 km NAM much further south than other guidance.
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ValpoSnow
post Apr 17 2018, 08:18 PM
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This trended south (story of the winter) steadily, but not enough for Chicago to get much. It falls apart as it moves east as well. Wondering if the counties in MN that are under a warning are going to bust. HRRR gives only SW MN a decent amount and most falls south of the border into northern Iowa.

Models have been showing some backend snow tomorrow night here in Chicago, so should at least see some flakes, again. Got a few tenths of snow yesterday with snow showers through early afternoon. High was 34º. Could have sworn it was mid-winter since not much is budding or blooming here yet.
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ValpoSnow
post Apr 17 2018, 08:40 PM
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This would be a major bust for much of Southern MN, especially the SE part that is under a warning.

Of course, I've seen HRRR change drastically in just a few hours so take this with a grain of salt.


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ValpoSnow
post Apr 17 2018, 09:18 PM
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12K NAM looks better for forecast verification purposes, though less snow in WI than had been previously advertised and certainly less than MKE is hyping. They seem very bullish on winter events, I've noticed.


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ValpoSnow
post Apr 17 2018, 09:23 PM
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The 3K NAM looks closer to HRRR than 12K NAM, which, isn't terribly surprising in that they are both mesoscale models.

I would be thrilled for the 3K NAM to verify here in Chicago!


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NorEaster07
post Apr 18 2018, 05:20 AM
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April 18, 2018.. 1-5amCST Loop.

Snow from Nebraska and South Dakota now expanding into Iowa and Minnesota.
Note the Lightning icon in Nebraska under the snow.. #Thundersnow




Here's Thundersnow from Nebraska.. Visibility dropped to 1 mile and less. Incredible. National Weather Service : Observed Weather for past 3 Days : O'Neill / Baker Field




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ohiobuckeye45
post Apr 18 2018, 06:17 AM
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that heavy snow pocket is insane
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ohiobuckeye45
post Apr 18 2018, 06:20 AM
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.
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ValpoSnow
post Apr 18 2018, 07:26 AM
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Models have consistently shown a heavy band of snow moving into Chicago around 7 PM tonight.


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ValpoSnow
post Apr 18 2018, 07:28 AM
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My friend who lives just outside Milwaukee still has snow on the ground and looks to add to that by a few inches today. Second half of April. Unbelievable.
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NorEaster07
post Apr 18 2018, 07:45 AM
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Guess some farms in Iowa are under a blanket of snow again.

7:30amCST April 18, 2018

https://lb.511ia.org/ialb/cameras/routesele...;textOnly=false

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Here was from April 8th, 10 days ago.

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This post has been edited by NorEaster07: Apr 18 2018, 07:45 AM
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ValpoSnow
post Apr 18 2018, 09:29 AM
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telejunkie
post Apr 18 2018, 09:57 AM
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blink.gif
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--------------------
Winter '17-'18 Winter Storms of Significance (>4")
12/9 - 5" 1/4 - 9" 2/18 - 5”
12/12 - 9” 1/17 - 7” 3/2 -7”
12/22 - 5” 2/4 - 7" 3/7-3/9 - 23"
12/25 - 10" 2/7 - 9” 3/13-3/15 - 17”

'09-'10 Snowfall: 76"
'10-'11 Snowfall: 117"
'11-'12 Snowfall: 44"
'12-'13 Snowfall: 62"
'13-'14 Snowfall: 88"
'14-'15 Snowfall: 99"
'15-'16 Snowfall: 26"
'16-'17 Snowfall: 85"
'17-'18 Snowfall: 128"

Telejunkie's, 100% unofficial yearly snowfall average - 81"
“We are what we pretend to be, so we must be careful about what we pretend to be” -Vonnegut
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NorEaster07
post Apr 18 2018, 12:51 PM
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8:40am-12:40pmCST loop.
Nice rotation and mesoscale discussions



I thought the 40s here was crazy. 30s during the day in Iowa. Nice gradient about to happen I think. 70s & 30s

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ValpoSnow
post Apr 18 2018, 03:27 PM
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QUOTE(NorEaster07 @ Apr 18 2018, 12:51 PM) *
I thought the 40s here was crazy. 30s during the day in Iowa. Nice gradient about to happen I think. 70s & 30s


We've had 30s for 4 out of the past 5 days. The one day not in the 30s was in the lower 40s, lol.
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NorEaster07
post Apr 18 2018, 04:13 PM
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4pm Update:: The sun must not be angled today in Iowa. tongue.gif blink.gif

Crops are under the snow during the day. Temps are in the 30s. Incredible.

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ValpoSnow
post Apr 18 2018, 04:17 PM
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LOT AFD

As the mid-level low passes overhead, deeper moisture into the mid-
levels will activate ice in the column, allowing the precip to
change over to snow. An expanding shield of light precip over
eastern IA is currently changing to snow, supporting this idea as
the low shifts eastward. The transition looks to occur around 21Z
for Rockford, 23-00Z for Chicago, and 02Z for Valparaiso. QPF of 0.1-
0.2" this evening supports 1-2.5" of wet snow primarily north of I-
80, with the highest amounts along the WI state line. Some hi-res
guidance is indicating a slight enhancement of QPF within about 10
miles of Lake MI as a result of some lake enhancement and increased
convergence from a lingering surface trough over northern Indiana.
This would support the potential for 2" from Gary to Chicago, and up
to 3" near Waukegan.
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NorEaster07
post Apr 18 2018, 04:54 PM
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Unreal.

Check out NWS La Crosses "liked tweets". Lots of pics.

11 inches at the Iowa/Minnesota border today. What The? blink.gif

https://twitter.com/ChrisKuball/status/986683863077400576

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NorEaster07
post Apr 18 2018, 04:57 PM
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Plow Cam from Southern MN.

Check out NWS Twin Cities "Likes"
https://twitter.com/NWSTwinCities/likes

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