***Official 2025 Weather Thread***

Cyhig

Well-Known Member
Nov 29, 2017
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SPC update

...Upper MS Valley...
Morning water vapor imagery shows a broad positively tilted upper
trough across the western states, with the band of primary mid-level
winds extending from the central Rockies into the upper MS Valley.
Embedded within the stronger flow, a progressive shortwave trough is
evident over KS/NE that will track into IA/MN/WI this afternoon and
evening. Strong large-scale forcing ahead of this feature will
result in scattered intense thunderstorms.

Strong southerly low-level winds are transporting mid 60s dewpoints
rapidly northward into IA/MN. Cloud cover is limiting daytime
heating, but sufficient destabilization from cooling/ascent aloft
will lead to convective initiation along/ahead of the surface cold
front by mid-afternoon. Storms will be most numerous over central
MN, with increasingly sparse development with southward extent
across IA. Supercells capable of strong tornadoes and very large
hail appear likely.
Storms will track into western WI during the
evening with a continued risk of significant severe weather
 
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Ms3r4ISU

Me: Mea culpa. Also me: Sine cura sis.
Staff member
Bookie
SuperFanatic
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May 7, 2008
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Ames
Went home to rescue our garbage can and cringed at how the sun is really trying to be seen. Hoped that if I didnt wear my sunglasses the sun would stay behind the clouds. Maybe later I’ll wish I’d tried reverse psychology.
 
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cydsho

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Apr 10, 2006
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Omaha, NE
It is super humid here in the Omaha area. 78 degrees now with sun peeking out. Very fast low level clouds going north.
 

ackatch

Well-Known Member
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Jul 22, 2021
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Waukee
I feel like it's getting cloudier in Waukee. Windier than someone's press conference, but cloudy.
 

scyclonekid

Well-Known Member
Feb 13, 2008
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Brian Copic is heading to northern Iowa. Still can see severe thunderstorms here. Looking more favorable hwy20 north.
 

CYEATHAWK

Well-Known Member
Aug 26, 2007
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Tor-watch in SW Minny and NW Iowa now. Stuff in SE S. Dakota a little further west than anticipated.

Would watch E. Nebby the next hour and change to see if they start getting into the action. Things are getting agitated.

That would be the bomb if it starts.