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Mesoscale Discussion 40 |
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Mesoscale Discussion 0040
NWS Storm Prediction Center Norman OK
0155 AM CST Tue Jan 10 2023
Areas affected...parts of coastal central California
Concerning...Severe potential...Watch unlikely
Valid 100755Z - 101200Z
Probability of Watch Issuance...20 percent
SUMMARY...A few thunderstorms will affect parts of the central
California Coast early this morning. Strong wind gusts may occur.
DISCUSSION...Strong cooling aloft will continue to overspread much
of northern CA this morning, coincident with the left-exit region of
the cyclonically curved midlevel jet. At the surface, low pressure
is forecast to pivot northeastward just offshore the Eureka area,
with increasing convergence extending south along a cold front. Lift
along the front as well as cooling profiles aloft will yield a few
hundred J/kg SBCAPE along the coast after about 10Z, though the
better low-level moisture plume will remain well south of the
region. Low-level winds will veer with time, reducing SRH as the
front approaches, but 50+ kt speeds 200-300 meters above the ground
suggest strong/enhanced wind gusts could occur with the stronger
downdrafts. Small/sub-severe hail cannot be ruled out within the
stronger cores given cellular storm mode.
..Jewell/Thompson.. 01/10/2023
...Please see www.spc.noaa.gov for graphic product...
ATTN...WFO...STO...MTR...EKA...
LAT...LON 36052139 35882152 36202191 36552206 37112243 37392251
37582260 37802261 37932298 38022310 38242306 38462328
38802369 38992327 38562268 37652206 36822160 36362132
36052139
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