***Official 2024 Weather Thread***

wxman1

Well-Known Member
SuperFanatic
SuperFanatic T2
Jul 2, 2008
19,936
16,312
113
Cedar Rapids
"Sunday night through Tuesday, southwest flow aloft will usher warmer temperatures into the region along with moisture and increasing rain chances. Not much has changed with the messaging. Due to expected sub-freezing pavement temperatures and the potential for a wintry mix starting Monday morning, there remains the potential for some freezing rain and icing conditions. This will be better refined in later forecasts as we get closer to the time and may require the issuance of a weather headline.

Tuesday night through Friday, the forecast blend has predominantly rain chances, which are more focused on our SE half of the CWA. Temperatures will be in the 33 to 40 range for highs each day, with some areas remaining above freezing overnight as well. A good deal of snowpack compression and melting will be seen along with the rain. While antecedent unfrozen ground under the snowpack may absorb the rain and snowmelt, some rises on streams, creeks, and tributary rivers are eventually expected along with ponding of water in poor drainage areas. With the rainfall, structures with snow- covered flat roofs will likely see added stress with the increased weight from the rainfall being absorbed into the snow on the roof. Some weaker structures may see their roofs collapse in. There are still some uncertainties with this systems including moisture, timing and track of each system. Stay tuned."
 
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exCYtable

Well-Known Member
Apr 15, 2010
4,760
8,438
113
"Sunday night through Tuesday, southwest flow aloft will usher warmer temperatures into the region along with moisture and increasing rain chances. Not much has changed with the messaging. Due to expected sub-freezing pavement temperatures and the potential for a wintry mix starting Monday morning, there remains the potential for some freezing rain and icing conditions. This will be better refined in later forecasts as we get closer to the time and may require the issuance of a weather headline.

Tuesday night through Friday, the forecast blend has predominantly rain chances, which are more focused on our SE half of the CWA. Temperatures will be in the 33 to 40 range for highs each day, with some areas remaining above freezing overnight as well. A good deal of snowpack compression and melting will be seen along with the rain. While antecedent unfrozen ground under the snowpack may absorb the rain and snowmelt, some rises on streams, creeks, and tributary rivers are eventually expected along with ponding of water in poor drainage areas. With the rainfall, structures with snow- covered flat roofs will likely see added stress with the increased weight from the rainfall being absorbed into the snow on the roof. Some weaker structures may see their roofs collapse in. There are still some uncertainties with this systems including moisture, timing and track of each system. Stay tuned."
Well aren't you just full of good news lately? LOL! We love you, man.
 

Cytasticlone

Well-Known Member
Mar 22, 2012
1,559
1,512
113
Ames, IA
I wouldn't have considered the stress on flat roofs part. Can absolutely see how that would be an issue though. That's a ton of weight if the snow acts like a sponge holding the water in place.
 

throwittoblythe

Well-Known Member
Aug 7, 2006
3,931
4,636
113
Minneapolis, MN
"Sunday night through Tuesday, southwest flow aloft will usher warmer temperatures into the region along with moisture and increasing rain chances. Not much has changed with the messaging. Due to expected sub-freezing pavement temperatures and the potential for a wintry mix starting Monday morning, there remains the potential for some freezing rain and icing conditions. This will be better refined in later forecasts as we get closer to the time and may require the issuance of a weather headline.

Tuesday night through Friday, the forecast blend has predominantly rain chances, which are more focused on our SE half of the CWA. Temperatures will be in the 33 to 40 range for highs each day, with some areas remaining above freezing overnight as well. A good deal of snowpack compression and melting will be seen along with the rain. While antecedent unfrozen ground under the snowpack may absorb the rain and snowmelt, some rises on streams, creeks, and tributary rivers are eventually expected along with ponding of water in poor drainage areas. With the rainfall, structures with snow- covered flat roofs will likely see added stress with the increased weight from the rainfall being absorbed into the snow on the roof. Some weaker structures may see their roofs collapse in. There are still some uncertainties with this systems including moisture, timing and track of each system. Stay tuned."
Antecedent Unfrozen Ground was the name of my garage band in college.
 

throwittoblythe

Well-Known Member
Aug 7, 2006
3,931
4,636
113
Minneapolis, MN
"With the rainfall, structures with snow- covered flat roofs will likely see added stress with the increased weight from the rainfall being absorbed into the snow on the roof. Some weaker structures may see their roofs collapse in. "
We had a flat roof when we lived in Minnesota. One year we had a good 36" of powder on there which normally isn't a big deal. However, spring came fast and we got a fast warm-up with rain. I'm a civil engineer so I know enough to be dangerous when it comes to structures design.

The night it was raining I was lying in bed wondering what that roof was rated for. So I looked up the code. Then I started thinking about the weight of very, very wet snow compared to fresh powder. I found myself outside at 1am raking that roof off because it was going to be overloaded if I didn't.
 
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cydnote

Well-Known Member
Oct 24, 2023
626
1,277
93
Freezing rain is the worst scenario for me. Rural all electric home. Our forecasted wind speeds are relatively low for Tue thru Friday so the chance of ice-ladened power lines whipping in the wind should be minimal.
 

Hoggins

Well-Known Member
SuperFanatic
SuperFanatic T2
Sep 2, 2019
3,395
4,858
113
37
I’d rather have 4 feet of snow than whatever this rain ******** is next week. I own a roof rake for my solar panels so I guess I’ll try to get the rest of the roof cleared this weekend
 
  • Agree
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dafarmer

Well-Known Member
Mar 17, 2012
7,228
6,908
113
SW Iowa
Old tractor and blade I use to move snow was so cold that the starter button froze solid, and wouldn't start. finally thawed out to move snow and all blew back yesterday. Dug out again. Ups delivered package at 7:30 tonite, said it has been 3 days for roads to get clear enough to work. County finallly opened road wider than the farmers one lane.
 

ClonerJams

Well-Known Member
SuperFanatic
SuperFanatic T2
Sep 26, 2022
7,129
16,153
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