TROPICAL DEPRESSION ISAAC ADVISORY NUMBER 45
NWS HYDROMETEOROLOGICAL PREDICTION CENTER COLLEGE PARK MD AL092012
400 AM CDT SAT SEP 01 2012
...TROPICAL DEPRESSION ISAAC BRINGING HEAVY RAINFALL AND THE
THREAT OF FLASH FLOODING TO THE MIDDLE MISSISSIPPI RIVER VALLEY
AND PORTIONS OF THE OHIO RIVER VALLEY...
SUMMARY OF 400 AM CDT...0900 UTC...INFORMATION
-----------------------------------------------
LOCATION...38.5N 93.0W
ABOUT 43 MILES...80 KM...WSW OF COLUMBIA MISSOURI.
MAXIMUM SUSTAINED WINDS...25 MPH...40 KM/H
PRESENT MOVEMENT...NE OR 52 DEGREES AT 3 MPH...5 KM/H
MINIMUM CENTRAL PRESSURE...1004 MB...29.65 INCHES
WATCHES AND WARNINGS
--------------------
FLOOD AND FLASH FLOOD WATCHES AND WARNINGS ARE IN EFFECT FOR
SOUTHEASTERN LOUISIANA.
COASTAL FLOOD WARNINGS AND 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 400 AM CDT...0900 UTC...THE CENTER OF ISAAC WAS LOCATED NEAR
LATITUDE 38.5 NORTH...AND LONGITUDE 93.0 WEST. THIS SYSTEM IS
EXPECTED TO MOVE EASTWARD ON SATURDAY EXITING THE MIDDLE
MISSISSIPPI RIVER VALLEY AND CONTINUING INTO THE OHIO RIVER
VALLEY.
MAXIMUM SUSTAINED WINDS ARE NEAR 25 MPH...40 KM/H...WITH HIGHER
GUSTS.
MINIMUM CENTRAL PRESSURE IS 1004 MB...29.65 INCHES.
HAZARDS
-------
RAINFALL...STORM TOTALS OF 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 EASTWARD INTO THE OHIO RIVER
VALLEY THROUGH SATURDAY AND SUNDAY. BY 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 PM CDT
...ALABAMA...
WILMER 5 WNW 17.63
DEES 3 N 14.53
GRAND BAY 0.6 NW 11.07
MOBILE/BATES FIELD 9.85
GRAND BAY 6.52
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
DAWES 4.73
SILVERHILL 0.9 SSE 4.34
...ARKANSAS...
PINE BLUFF 8.50
KINGSLAND 6.95
STUTTGART MUNI ARPT 6.32
FORDYCE 6.10
ARKANSAS CITY CANAL 81 5.72
CONNERLY BAYOU 5.70
HARDON LOCK & DAM 5.53
STAR CITY 5.39
EGYPT 5.25
STEPROCK 5.15
MONTICELLO 1.6 WNW 5.09
WHITE HALL 4 NNW 5.08
LITTLE ROCK 2.2 N 3.13
...FLORIDA...
VERO BEACH 5.2 S 16.60
ROYAL PALM BEACH 5.0 W 16.29
BOYNTON BEACH 1.9 NNW 14.41
GREENACRES 13.10
PORT ST LUCIE 1.5 NE 13.04
WELLINGTON 12.55
ABERDEEN 4.2 NNW 12.41
THE ACREAGE 12.29
LOXAHATCHEE WILDLIFE REFUGE 12.24
PALM CITY 4.0 SW 11.69
WEST PALM BEACH INTL ARPT 8.64
MIAMI/OPA LOCKA 6.64
...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
...ILLINOIS...
GREENVILLE 5.63
HARDIN 2.53
JACKSONVILLE 2.47
CAHOKIA/ST LOUIS 2.25
CENTRALIA MUNI ARPT 2.17
MONTGOMERY 2.07
PITTSFIELD 2.06
CARBONDALE/MURPHYSBORO 2.02
SPRINGFIELD/CAPITAL ARPT 1.49
SCOTT AFB/BELLEVILLE 1.08
...KANSAS...
OLATHE/JOHNSON CO INDUSTRIAL ARPT 2.16
LAWRENCE MUNI ARPT 0.57
...LOUISIANA...
NEW ORLEANS 20.08
BAPTIST 13.94
RESERVE 0.5 SSE 13.46
HOLDEN 13.28
LIVINGSTON 13.16
ABITA SPRINGS 1.9 NE 12.36
PORT VINCENT 12.20
HAMMOND 2.3 WSW 11.93
TERRYTOWN 3.3 S 10.56
SLIDELL 10.40
...MISSOURI...
KANSAS CITY MUNI ARPT 2.89
MT LEONARD 2.84
WEST PLAINS 2.29
INDEPENDENCE 2.25
LESTERVILLE 2.21
LEES SUMMIT MUNI ARPT 2.19
HAZELGREEN 2.14
ST CHARLES 2.13
WHITEMAN AFB/SEDALIA 2.11
LITTON AGRI-SCI CNTR 1.99
AVA 0.8 NNW 1.92
COLUMBIA RGNL ARPT 1.76
JOPLIN RGNL ARPT 1.61
ST LOUIS/LAMBERT INTL ARPT 1.40
...MISSISSIPPI...
KILN 3.3 N 17.04
COLUMBIA 3 W 15.68
HATTIESBURG 5 SW 13.45
PURVIS 2 N 13.36
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
PASCAGOULA 3 NE 11.50
SUMRALL 11.29
MONTICELLO 11.00
KEESLER AFB/BILOXI 10.17
JACKSON 4.76
...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 1000 AM CDT. PLEASE REFER TO YOUR LOCAL
NATIONAL WEATHER SERVICE OFFICE FOR FURTHER INFORMATION ON THIS
STORM.
FORECASTER FANNING
FORECAST POSITIONS
------------------
INITIAL 01/0900Z 38.5N 93.0W
12HR VT 01/1800Z 38.8N 90.8W
24HR VT 02/0600Z 39.0N 90.8W...POST-TROP/EXTRATROP
36HR VT 02/1800Z 39.2N 88.8W...POST-TROP/EXTRATROP
48HR VT 03/0600Z 39.4N 87.3W...POST-TROP/EXTRATROP
72HR VT 04/0600Z 39.6N 84.9W...POST-TROP/EXTRATROP
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