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Mesoscale Discussion 994 |
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Mesoscale Discussion 0994
NWS Storm Prediction Center Norman OK
1152 AM CDT Mon Jun 12 2023
Areas affected...Portions of the TX Panhandle into western OK
Concerning...Severe potential...Watch unlikely
Valid 121652Z - 121845Z
Probability of Watch Issuance...20 percent
SUMMARY...An isolated threat for severe hail may continue through
the early afternoon. Trends will be closely monitored, but watch
issuance will probably not be needed.
DISCUSSION...In the wake of elevated convection earlier this
morning, additional thunderstorms have recently developed across
parts of the TX Panhandle. This activity is likely being aided by
modest low-level warm advection centered near/above 750 mb. These
thunderstorms will remain elevated, well to the north of a surface
front draped across central TX. Still, around 500-1000 J/kg of
MUCAPE should be present across this region with modestly steepened
mid-level lapse rates persisting. Enhanced mid/upper-level flow
associated with a southern-stream jet is fostering 45-50+ kt of
cloud-bearing shear. This should support continued updraft
organization, with an elevated supercell or two possible. Isolated
severe hail up to 1-1.5 inches in diameter appears possible in the
short term, but this activity will probably tend to move into
western OK, where substantial convective overturning has occurred
earlier this morning. At this point, watch issuance appears
unlikely, as the overall severe threat should remain rather
isolated.
..Gleason/Thompson.. 06/12/2023
...Please see www.spc.noaa.gov for graphic product...
ATTN...WFO...OUN...AMA...
LAT...LON 35450227 35880222 36100142 36039976 35389904 35059934
34990012 35160167 35240218 35450227
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