|Mesoscale Discussion 1658|
< Previous MD Next MD >
Mesoscale Discussion 1658
NWS Storm Prediction Center Norman OK
0722 PM CDT Fri Aug 05 2022
Areas affected...Northern Plains
Concerning...Severe Thunderstorm Watch 517...
Valid 060022Z - 060145Z
The severe weather threat for Severe Thunderstorm Watch 517
SUMMARY...Severe threat continues across the entire watch region.
DISCUSSION...Convection that developed due to strong surface heating
has gradually expanded in areal coverage along/near surface boundary
draped across ww517. This activity is rooted within the boundary
layer along an instability axis that continues to favor new updrafts
forming along the wind shift. Over the last half hour or so,
scattered convection has gradually increased northeast of FAR where
low-level warm advection is a bit stronger along the northeastern
plume of steepest low-level lapse rates. In the absence of strong
large-scale support aloft, it appears convection will struggle to
move appreciably east of the primary instability reservoir. However,
with time, a gradually expanding elongated zone of strong/severe
thunderstorms should advance across ww517.
...Please see www.spc.noaa.gov for graphic product...
LAT...LON 43200226 47119717 47099458 43229988 43200226
Top/All Mesoscale Discussions/Forecast Products/Home