|
Day 4-8 Convective Outlook Issued on Jun 22, 2009
Updated: Mon Jun 22 08:44:03 UTC 2009
Note:
A severe weather area depicted in the Day 4-8 period
indicates a 30% or higher probability for severe
thunderstorms within 25 miles of any point.
D4 | Thu, Jun 25, 2009 - Fri, Jun 26, 2009 |
D7 | Sun, Jun 28, 2009 - Mon, Jun 29, 2009 |
D5 | Fri, Jun 26, 2009 - Sat, Jun 27, 2009 |
D8 | Mon, Jun 29, 2009 - Tue, Jun 30, 2009 |
D6 | Sat, Jun 27, 2009 - Sun, Jun 28, 2009 |
(All days are valid from 12 UTC - 12 UTC) |
ZCZC SPCSWOD48 ALL
ACUS48 KWNS 220843
SPC AC 220843
DAY 4-8 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0343 AM CDT MON JUN 22 2009
VALID 251200Z - 301200Z
...PREDICTABILITY TOO LOW TO DELINEATE A SVR RISK AREA...
MEDIUM RANGE FORECAST GUIDANCE CONTINUES TO EXHIBIT LARGE SPREAD
CONCERNING SHORT WAVE DEVELOPMENTS WITHIN THE MAIN BELT OF
WESTERLIES NEAR THE CANADIAN/U.S. BORDER AREA LATE THIS WEEK INTO
NEXT WEEKEND. THERE ARE INDICATIONS THAT A CLOSED LOW/TROUGH NOW
DEVELOPING WEST OF THE CALIFORNIA COAST MAY FINALLY BE FORCED TO
LIFT INLAND BY THURSDAY IN RESPONSE TO ONE SIGNIFICANT IMPULSE
APPROACHING THE PACIFIC NORTHWEST COAST. THIS SYSTEM PROBABLY WILL
BECOME INCREASINGLY SHEARED IN A BROADLY CONFLUENT REGIME TO THE
NORTHWEST OF A LINGERING SUBTROPICAL HIGH CENTERED OVER THE SOUTH
CENTRAL STATES. BUT...GIVEN ANTECEDENT MOISTENING...IT IS A
DISTINCT POSSIBILITY THAT FORCING/SHEAR MAY REMAIN SUFFICIENT TO
SUPPORT AN INCREASING RISK FOR SEVERE STORMS ACROSS THE FOUR CORNERS
REGION AND EASTERN GREAT BASIN. HOWEVER...UNCERTAINTIES ARE STILL
JUST TOO LARGE AT THE PRESENT TIME TO CONFIDENTLY DELINEATE A SEVERE
RISK AREA.
..KERR.. 06/22/2009
CLICK TO GET WUUS48 PTSD48 PRODUCT
|
|