|
| Mesoscale Discussion 784 |
|
< Previous MD Next MD >
|
|
Mesoscale Discussion 0784
NWS Storm Prediction Center Norman OK
0458 PM CDT Tue Jun 02 2020
Areas affected...northeast CO...central NE...and portions of
southern SD
Concerning...Severe potential...Watch unlikely
Valid 022158Z - 022330Z
Probability of Watch Issuance...20 percent
SUMMARY...Recent visible satellite imagery shows updrafts deepening
near a frontal zone across portions of Nebraska and Colorado.
Moderate destabilization may support a few storms capable of severe
hail and damaging winds through this afternoon and into the evening.
Trends will be monitored, but storm coverage and intensity are not
expected to be great enough to justify a watch at this time.
DISCUSSION...A few deep updrafts have been noted between a quasi
stationary front and a surface trough. Dewpoints in the upper 50s to
low 60s F along and behind the front are contributing to moderate
destabilization, with 2000-3500 J/kg of MLCAPE. Shear is forecast to
remain relatively weak, at or about 25 kt, and mostly on the cooler
side of the boundary. This suggests a few multicell storms capable
of severe hail and strong downdraft winds may develop this
afternoon/evening. Hi-res guidance suggests some clustering of
stronger cells near the front this evening, but the lack of
appreciable deep layer shear suggests that the threat and coverage
of any severe weather may be relatively brief. A weather watch is
not anticipated.
..Lyons/Thompson.. 06/02/2020
...Please see www.spc.noaa.gov for graphic product...
ATTN...WFO...OAX...GID...LBF...GLD...BOU...
LAT...LON 39720237 40010245 40390251 40680256 41100256 41280254
41540242 41790220 42100160 42500076 42799989 42899959
42879882 42719809 42389754 41909774 41449836 40999903
40429990 39800118 39500189 39600234 39720237
|
|
Top/All Mesoscale Discussions/Forecast Products/Home
|
|