TROPICAL DEPRESSION ISAAC ADVISORY NUMBER 42
NWS HYDROMETEOROLOGICAL PREDICTION CENTER COLLEGE PARK MD AL092012
1000 AM CDT FRI AUG 31 2012
...TROPICAL DEPRESSION ISAAC BRINGING HEAVY RAINFALL AND THE
THREAT OF FLASH FLOODING TO THE MIDDLE MISSISSIPPI RIVER VALLEY...
SUMMARY OF 1000 AM CDT...1500 UTC...INFORMATION
-----------------------------------------------
LOCATION...35.6N 94.1W
ABOUT 25 MILES...40 KM...NE OF FORT SMITH ARKANSAS.
ABOUT 100 MILES...160 KM...SSW OF SPRINGFIELD MISSOURI.
MAXIMUM SUSTAINED WINDS...25 MPH...40 KM/H
PRESENT MOVEMENT...NNW OR 335 DEGREES AT 11 MPH...18 KM/H
MINIMUM CENTRAL PRESSURE...1003 MB...29.62 INCHES
WATCHES AND WARNINGS
--------------------
FLOOD AND FLASH FLOOD WATCHES AND WARNINGS ARE IN EFFECT FOR THE
AREAS OF ARKANSAS AND SOUTHERN MISSISSIPPI...AND SOUTHEASTERN
LOUISIANA.
COASTAL FLOOD WARNINGS ARE IN EFFECT FOR PORTIONS OF THE LOUISIANA
AND MISSISSIPPI COASTLINES.
FOR INFORMATION SPECIFIC TO YOUR AREA...INCLUDING POSSIBLE WATCHES
AND WARNINGS...PLEASE MONITOR PRODUCTS ISSUED BY YOUR LOCAL
NATIONAL WEATHER SERVICE OFFICE AT WWW.WEATHER.GOV.
DISCUSSION AND 48-HOUR OUTLOOK
------------------------------
AT 1000 AM CDT...1500 UTC...THE CENTER OF ISAAC WAS LOCATED NEAR
LATITUDE 35.6 NORTH...AND LONGITUDE 94.1 WEST. THE SYSTEM IS
EXPECTED TO CONTINUE MOVING NORTHWARD INTO THE MIDDLE MISSISSIPPI
RIVER VALLEY TODAY BEFORE TURNING NORTHEASTWARD INTO THE OHIO
RIVER VALLEY ON SATURDAY.
MAXIMUM SUSTAINED WINDS ARE NEAR 25 MPH...40 KM/H...WITH HIGHER
GUSTS.
MINIMUM CENTRAL PRESSURE IS 1003 MB...29.62 INCHES.
HAZARDS
-------
RAINFALL...AN ADDITIONAL 3 TO 5 INCHES OF RAIN...WITH LOCALIZED
AMOUNTS AS HIGH AS 8 INCHES...WILL BE POSSIBLE FOR MUCH OF THE
MIDDLE MISSISSIPPI RIVER VALLEY THROUGH LATE SATURDAY. THESE HEAVY
RAINFALL AMOUNTS WILL SPREAD INTO THE OHIO RIVER VALLEY ON SUNDAY.
BY SUNDAY NIGHT INTO MONDAY AND TUESDAY...HEAVY RAINS WILL REACH
THE CENTRAL APPALACHIANS. WHILE THE ONGOING DROUGHT WILL TEND TO
KEEP THE THREAT FOR FLASH FLOODING DOWN INITIALLY...VERY HEAVY
RAINFALL OVER THE SAME AREAS WILL LEAD TO AN INCREASING FLASH
FLOOD THREAT OVER TIME.
RAINFALL TOTALS
---------------
SELECTED STORM TOTAL RAINFALL IN INCHES THROUGH 7 AM CDT
...ALABAMA...
WILMER 7.9 SE 11.96
GRAND BAY 0.6 NW 11.07
MOBILE/BATES FIELD 9.67
FAIRHOPE 2.3 N 6.42
DAPHNE 1.8 ESE 5.87
THEODORE 8.0 SSE 5.12
POINT CLEAR 1.6 SSW 5.04
SILVERHILL 0.9 SSE 4.34
FOLEY 2.0 SSW 3.71
...ARKANSAS...
MONTICELLO 1.6 WNW 5.09
WHITE HALL 4.1 NNW 5.08
HAMPTON 6.8 SE 4.12
BRYANT 1.3 NW 4.03
LITTLE ROCK 2.2 N 3.13
PINE BLUFF/GRIDER FIELD 2.63
EL DORADO/GOODWIN FIELD 1.71
...FLORIDA...
VERO BEACH 5.2 S 16.60
ROYAL PALM BEACH 5.0 W 16.29
BOYNTON BEACH 1.9 NNW 14.41
PORT ST LUCIE 1.5 NE 13.04
ABERDEEN 4.2 NNW 12.41
PALM CITY 4.0 SW 11.69
HOMESTEAD AFB 9.37
FORT PIERCE/ST LUCIE 9.18
WEST PALM BEACH INTL ARPT 8.64
VERO BEACH MUNI ARPT 7.66
FORT LAUDERDALE EXECUTIVE APT 7.02
MIAMI/OPA LOCKA 6.64
POMPANO BEACH AIRPARK 5.33
WINTER HAVEN GILBERT ARPT 5.19
HOLLYWOOD/NORTH PERRY ARPT 5.12
...GEORGIA...
GUYTON 1.9 S 5.60
BROOKLET 13.1 SE 4.60
RINCON 1.2 NNW 4.03
MONROE 5.6 NNE 3.11
JESUP 7.1 N 3.04
AUGUSTA/BUSH FIELD 2.53
ALMA/BACON CO. ARPT 2.49
SAVANNAH MUNI ARPT 2.47
FORT STEWART/WRIGHT AAF 2.06
AUGUSTA/DANIEL FIELD 1.95
MOODY AFB/VALDOSTA 1.50
...LOUISIANA...
NEW ORLEANS 20.08
RESERVE 0.5 SSE 13.46
LIVINGSTON 13.16
ABITA SPRINGS 1.9 NE 12.36
HAMMOND 2.3 WSW 11.93
TERRYTOWN 3.3 S 10.56
SLIDELL 10.40
BATON ROUGE/RYAN MUNI ARPT 4.57
BOOTHVILLE 4.20
MONROE RGNL ARPT 2.37
PATTERSON MEMORIAL ARPT 2.00
LAFAYETTE RGNL ARPT 1.55
ALEXANDRIA/ESLER 1.50
...MISSOURI...
WEST PLAINS 1 W 2.08
...MISSISSIPPI...
KILN 3.3 N 17.04
MARION RAWS/COLUMBIA 15.02
SAUCIER 1.7 NNE 12.78
PICAYUNE 5.6 ENE 12.17
DIAMONDHEAD 1.5 NE 12.04
LONG BEACH 0.7 S 11.95
MCCOMB/LEWIS FIELD 10.93
GULFPORT-BILOXI 10.85
PASCAGOULA 10.67
KEESLER AFB/BILOXI 10.17
HATTIESBURG/CHAIN MUNI ARPT 9.44
HATTIESBURG/LAUREL 7.93
JACKSON/HAWKINS FIELD 4.03
MERIDIAN/KEY FIELD 4.00
JACKSON WFO 3.93
MERIDIAN NAS/MCCAIN 1.72
...NORTH CAROLINA...
WILMINGTON/NEW HANOVER CO. ARPT 4.07
JACKSONVILLE/ELLIS AIRPORT 1.50
...SOUTH CAROLINA...
MOUNT PLEASANT 5.5 NNE 9.08
PAWLEYS ISLAND 5.6 NNE 8.36
CHARLESTON 2.8 NE 7.36
JOHNS ISLAND 9.0 SE 6.44
MEGGETT 1.8 W 4.85
BEAUFORT MCAS 3.59
ROCK HILL-YORK CO. ARPT 2.89
DARLINGTON 1.75
NEXT ADVISORY
-------------
NEXT ADVISORY ISSUED AT 400 PM CDT. PLEASE REFER TO YOUR LOCAL
NATIONAL WEATHER SERVICE OFFICE FOR FURTHER INFORMATION ON THIS
STORM.
FORECASTER KREKELER
FORECAST POSITIONS
------------------
INITIAL 31/1500Z 35.6N 94.1W
12HR VT 01/0000Z 36.7N 93.5W
24HR VT 01/1200Z 38.7N 93.0W...
36HR VT 02/0000Z 39.2N 92.0W...
48HR VT 02/1200Z 39.7N 90.3W...POST-TROP/EXTRATROP
72HR VT 03/1200Z 39.8N 87.3W...POST-TROP/EXTRATROP
96HR VT 04/1200Z 41.0N 82.5W...POST-TROP/EXTRATROP
weather.gov 
