|
Mesoscale Discussion 1364 |
< Previous MD Next MD >
|
|
MESOSCALE DISCUSSION 1364
NWS STORM PREDICTION CENTER NORMAN OK
0247 PM CDT SAT JUL 11 2015
AREAS AFFECTED...PARTS OF EASTERN AZ AND WESTERN NM
CONCERNING...SEVERE POTENTIAL...WATCH UNLIKELY
VALID 111947Z - 112145Z
PROBABILITY OF WATCH ISSUANCE...20 PERCENT
SUMMARY...A FEW STRONG TO SEVERE STORMS WILL REMAIN POSSIBLE THROUGH
THE AFTERNOON TO EARLY EVENING ACROSS PORTIONS OF EASTERN AZ AND
WESTERN NM...WITH ISOLATED DAMAGING WINDS AND HAIL BEING THE PRIMARY
THREATS. WW ISSUANCE IS UNLIKELY...THOUGH A MARGINAL RISK AREA WILL
BE INCLUDED IN THE 20Z SWODY1.
DISCUSSION...DIABATIC HEATING WITHIN A MOIST ENVIRONMENT /12Z RAOBS
SHOWED PW VALUES RANGING FROM NEAR 1 INCH TO 1.5 INCHES/ IS
CONTRIBUTING TO MODERATELY STRONG DESTABILIZATION SO FAR THIS
AFTERNOON WITH MLCAPE OF 1000-2000 J/KG. AS STORMS DEVELOP WITHIN
THIS AIR MASS...SUFFICIENT BULK SHEAR GIVEN 30-40 KT OF SWLY 500-MB
FLOW WILL SUPPORT THE POTENTIAL FOR ADDITIONAL ORGANIZED STORMS.
DESPITE STRONGER BULK SHEAR WITH NRN EXTENT ACROSS THIS AREA OF THE
SOUTHWEST STATES...WEAKER INSTABILITY WITH NRN EXTENT SHOULD LIMIT
THE OVERALL COVERAGE OF STRONG TO SEVERE STORMS AND PRECLUDE THE
NEED FOR A WATCH. HOWEVER...DCAPE EXCEEDING 1000 J/KG PER RAP-BASED
OBJECTIVE ANALYSIS AND STEEPENING LOW-LEVEL LAPSE RATES...LOW SEVERE
PROBABILITIES FOR SEVERE WIND AND HAIL SUPPORT THE INCLUSION OF THIS
AREA IN A MARGINAL SEVERE RISK IN THE 20Z SWODY1.
..PETERS/HART.. 07/11/2015
ATTN...WFO...ABQ...EPZ...TWC...FGZ...PSR...
LAT...LON 31491107 33391107 35661070 36830939 36930795 36850687
36290645 34930680 33440734 32340768 31770806 31750820
31320825 31311096 31491107
|
Top/All Mesoscale Discussions/Forecast Products/Home
|
|