HURRICANE ALEX ADVISORY 22

[NHC Olney Maryland]

BULLETIN
HURRICANE ALEX ADVISORY NUMBER 22
NWS TPC/NATIONAL HURRICANE CENTER OLNEY MD AL012010
1000 PM CDT WED JUN 30 2010

...ALEX MOVING INLAND OVER NORTHEASTERN MEXICO...

SUMMARY OF 1000 PM CDT...0300 UTC...INFORMATION
-----------------------------------------------
LOCATION...24.3N 97.8W
ABOUT 35 MI...55 KM N OF LA PESCA MEXICO
ABOUT 110 MI...180 KM S OF BROWNSVILLE TEXAS
MAXIMUM SUSTAINED WINDS...100 MPH...160 KM/HR
PRESENT MOVEMENT...W OR 260 DEGREES AT 10 MPH...17 KM/HR
MINIMUM CENTRAL PRESSURE...947 MB...27.96 INCHES


WATCHES AND WARNINGS
--------------------
CHANGES WITH THIS ADVISORY...

THE HURRICANE WARNING IS CHANGED TO A TROPICAL STORM WARNING FOR THE
COAST OF TEXAS SOUTH OF BAFFIN BAY TO THE MOUTH OF THE RIO GRANDE.

SUMMARY OF WATCHES AND WARNINGS IN EFFECT...

A HURRICANE WARNING IS IN EFFECT FOR...
* THE COAST OF MEXICO FROM THE MOUTH OF THE RIO GRANDE TO LA CRUZ

A TROPICAL STORM WARNING IN IN EFFECT FOR...
* THE COAST OF TEXAS FROM THE MOUTH OF THE RIO GRANDE TO PORT
OCONNOR
* THE COAST OF MEXICO SOUTH OF LA CRUZ TO CABO ROJO

FOR STORM INFORMATION SPECIFIC TO YOUR AREA IN THE UNITED
STATES...INCLUDING POSSIBLE INLAND WATCHES AND WARNINGS...PLEASE
MONITOR PRODUCTS ISSUED BY YOUR LOCAL NATIONAL WEATHER SERVICE
FORECAST OFFICE. FOR STORM INFORMATION SPECIFIC TO YOUR AREA OUTSIDE
UNITED STATES...PLEASE MONITOR PRODUCTS ISSUED BY YOUR NATIONAL
METEOROLOGICAL SERVICE.


DISCUSSION AND 48-HOUR OUTLOOK
------------------------------
AT 1000 PM CDT...0300 UTC...THE CENTER OF HURRICANE ALEX WAS LOCATED
NEAR LATITUDE 24.3 NORTH...LONGITUDE 97.8 WEST. THIS POSITION IS
JUST INLAND OF THE COAST OF NORTHEASTERN MEXICO IN THE MUNICIPALITY
OF SOTO LA MARINA. ALEX IS MOVING TOWARD THE WEST NEAR 10 MPH...17
KM/HR...AND THIS MOTION IS EXPECTED TO CONTINUE FOR THE NEXT DAY OR
SO. ON THIS TRACK...THE CENTER OF ALEX WILL MOVE FARTHER INLAND
OVER NORTHEASTERN MEXICO ON THURSDAY.

MAXIMUM SUSTAINED WINDS ARE NEAR 100 MPH...160 KM/HR...WITH HIGHER
GUSTS. ALEX IS A CATEGORY TWO HURRICANE ON THE SAFFIR-SIMPSON
HURRICANE WIND SCALE. STEADY WEAKENING WILL OCCUR AS THE TROPICAL
CYCLONE MOVES OVER LAND...AND ALEX IS EXPECTED TO DISSIPATE OVER
MEXICO WITHIN 1 TO 2 DAYS.

HURRICANE FORCE WINDS EXTEND OUTWARD UP TO 35 MILES...55 KM...FROM
THE CENTER...AND TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 205
MILES...335 KM.

AN AIR FORCE HURRICANE HUNTER AIRCRAFT REPORTED A MINIMUM CENTRAL
PRESSURE OF 947 MB...27.96 INCHES...JUST BEFORE LANDFALL.


HAZARDS AFFECTING LAND
----------------------
RAINFALL...ALEX IS EXPECTED TO PRODUCE TOTAL RAINFALL ACCUMULATIONS
OF 6 TO 12 INCHES OVER PORTIONS OF NORTHEASTERN MEXICO AND SOUTHERN
TEXAS...WITH ISOLATED MAXIMUM AMOUNTS OF 20 INCHES. THESE RAINS
COULD CAUSE LIFE-THREATENING FLASH FLOODS AND MUD SLIDES...
ESPECIALLY OVER MOUNTAINOUS TERRAIN.

WIND...HURRICANE-FORCE WINDS ARE SPREADING INLAND OVER A PORTION OF
THE HURRICANE WARNING AREA OVER NORTHEASTERN MEXICO. THESE WINDS
WILL DECREASE ON THURSDAY.

STORM SURGE...A DANGEROUS STORM TIDE WILL RAISE WATER LEVELS BY
AS MUCH AS 4 TO 6 FEET ABOVE GROUND LEVEL ALONG THE IMMEDIATE COAST
TO THE NORTH OF WHERE THE CENTER HAS MADE LANDFALL. THE WATER COULD
PENETRATE INLAND AS FAR AS SEVERAL MILES FROM THE SHORE WITH DEPTH
GENERALLY DECREASING AS THE STORM TIDE MOVES INLAND. NEAR THE
COAST...THE SURGE WILL BE ACCOMPANIED BY LARGE AND DESTRUCTIVE
WAVES. THE STORM TIDE AND WAVES WILL GRADUALLY DIMINISH ON
THURSDAY.

TORNADOES...ISOLATED TORNADOES ARE POSSIBLE OVER PORTIONS OF EXTREME
SOUTHERN TEXAS OVERNIGHT.


NEXT ADVISORY
-------------
NEXT INTERMEDIATE ADVISORY...100 AM CDT.
NEXT COMPLETE ADVISORY...400 AM CDT.