Severe Thunderstorm Warning 122, NWS New Orleans, LA

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NEW ORLEANS/BATON ROUGE LA
245 PM CDT WED JUN 27 2001

SPOTTY CONVECTION FIRING PRETTY HARD AT THE MOMENT SO WILL BE FAIRLY
BRIEF. WITH SOME DRY AIR INTRUSION TRYING TO WORK ITS WAY INTO THE
FORECAST AREA FROM THE NW HALF OF THE GULF...EXPECT CONVECTION TO
PICK UP SOME WITHIN THE NEXT FEW HOURS. SO THIS IN ITSELF WILL
DICTATE IMMEDIATE FORECAST FOR TONIGHT. WILL PRETTY MUCH GO WITH
PERSISTENCE FROM PREVIOUS PACKAGES WHICH HAVE GENERALLY TRENDED
CLOSER WITH THE AVN. AVN HOLDING THE UPPER LOW NEAR THE MISSOURI
VALLEY AREA WHICH VERIFIES WELL WITH WV IMAGERY. THIS LOW NOT
EXPECTED TO DO MUCH THROUGH 60HR BEFORE A RIDGE PATTERN BUILDING
OVER THE SW STATES BEGINS TO PUSH EWD SLIDING THE LOW INTO TX NEAR
THE WEEKEND/S END. WITH SUFFICIENT MOISTURE IN PLAY ACROSS THE
CENTRAL GULF COAST ALONG WITH MID LEVELS VORTS ROTATING AROUND THE
UPPER LOW...THIS SHOULD LEAVE PRECIP TRENDS IN THE SCT RANGE THROUGH
00Z SAT BEFORE MUCH OF THE ENERGY MOVES W OF THE FORECAST AREA. SFC
PATTERN SHOULD CHANGE LITTLE AS WELL WITH HIGH PRES PERSISTING
ACROSS THE LOWER MS VALLEY. WILL KEEP FORECAST TEMPS NEAR SEASONAL
TRENDS WITH AFTERNOON HIGHS NEAR 90 ALONG WITH OVERNIGHT LOWS AROUND
70. FOR COORD PURPOSES...NUMBERS BELOW MAY CHANGE SLIGHTLY NEAR
ISSUANCE TIME PENDING RADAR TRENDS.

PRELIM NUMBERS...

MCB 68/88/69/89 4534  BTR 69/88/71/89 4534
MSY 72/89/73/89 5534  GPT 70/86/71/87 4534

.NEW...NONE
LA...NONE.
MS...NONE.

09

LAZ034>040-046>050-056>070-MSZ068>071-077-080>082-281200-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE NEW ORLEANS LA
1100 AM CDT WED JUN 27 2001

...SYNOPSIS...
VERY MOIST AND UNSTABLE AIRMASS MOVING THROUGH SOUTHEAST LOUISIANA
AND SOUTH MISSISSIPPI AROUND SURFACE HIGH PRESSURE WHICH IS SITUATED
OVER THE SOUTHEAST U.S.

...THUNDERSTORMS...
THUNDERSTORMS WILL MOVE OVER THE AREA THIS AFTERNOON.  SOME
THUNDERSTORMS BECOMING SEVERE WITH ASSOCIATED SMALL HAIL...STRONG
GUSTY WINDS IN EXCESS OF 50 MPH...AND FREQUENT LIGHTNING. ISOLATED
BRIEF TORNADOES ARE POSSIBLE. HEAVY RAIN WITH RATES OF 2 TO 3 INCHES
AN HOUR ARE POSSIBLE WITH LOCALIZED FLOODING OF STREETS AND STREAM.

ACTIONS...LOCAL EMERGENCY OFFICIALS SHOULD BE ON THE ALERT OF THE
POSSIBILITIES OF THESE SEVERE THUNDERSTORMS.

FOR MORE INFORMATION PLEASE VISIT OUR HOME PAGE ON THE INTERNET AT
THE FOLLOWING ADDRESS...HTTP://WWW.SRH.NOAA.GOV/LIX (ALL LETTERS
SHOULD BE LOWER CASE).