WEATHER STATEMENT

TNT31 KWNH 121350
TCPAT1

POST-TROPICAL CYCLONE IRMA ADVISORY NUMBER 53
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD AL112017
500 AM EDT TUE SEP 12 2017

…CORRECTION FOR MAXIMUM WIND AND STORM NUMBER…

…POST-TROPICAL CYCLONE IRMA IS BRINGING GENERALLY MODERATE RAIN
TO PARTS OF THE SOUTHEASTERN U.S. AND TENNESSEE AND OHIO VALLEYS…

SUMMARY OF 500 AM EDT…0900 UTC…INFORMATION

LOCATION…33.0N 85.2W
ABOUT 65 MILES…110 KM…SW OF ATLANTA GEORGIA
ABOUT 100 MILES…165 KM…ESE OF BIRMINGHAM ALABAMA
MAXIMUM SUSTAINED WINDS…25 MPH…40 KM/H
PRESENT MOVEMENT…NNW OR 335 DEGREES AT 10 MPH…16 KM/H
MINIMUM CENTRAL PRESSURE…998 MB…29.47 INCHES

WATCHES AND WARNINGS

FLASH FLOOD WATCHES ARE IN EFFECT FOR PORTIONS OF THE SOUTHERN
APPALACHIANS.
FLOOD WARNINGS AND ADVISORIES ARE ONGOING SCATTERED THROUGHOUT THE
SOUTHEAST.

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 500 AM EDT…0900 UTC…THE CENTER OF POST-TROPICAL CYCLONE
IRMA WAS LOCATED NEAR LATITUDE 33.0 NORTH…AND LONGITUDE 85.2
WEST. IRMA HAS LOST ITS TROPICAL CHARACTERISTICS IN THE LAST
SEVERAL HOURS, AND IS NOW CLASSIFIED AS A POST-TROPICAL CYCLONE.
IRMA HAS BEEN MOVING NORTHWESTWARD THROUGH THE SOUTHEAST U.S., AND
WILL CONTINUE THIS MOTION AND APPROACH THE TENNESSEE VALLEY BY
TUESDAY AFTERNOON. IRMA IS EXPECTED TO WEAKEN THROUGHOUT THE DAY
ON TUESDAY.

MINIMUM CENTRAL PRESSURE IS 998 MB…29.47 INCHES.

HAZARDS AFFECTING LAND

RAINFALL…REMNANT BANDS FROM POST-TROPICAL CYCLONE IRMA ARE
EXPECTED TO PRODUCE ADDITIONAL RAIN ACCUMULATIONS OF 1 TO 3 INCHES
WITH ISOLATED 5 INCHES THROUGH TUESDAY ACROSS NORTHERN SOUTH
CAROLINA INTO SOUTHERN AND WESTERN NORTH CAROLINA. LOCALIZED
INTENSE RAINFALL RATES WILL LEAD TO ADDITIONAL ISOLATED AREAS OF
FLASH FLOODING AND RAPID RISES ON CREEKS, STREAMS, AND RIVERS.
CLOSER TO IRMA’S REMNANT CIRCULATION CENTER, AN ADDITIONAL 1 TO 2
INCHES OF RAINFALL IS EXPECTED ACROSS NORTHERN MISSISSIPPI,
NORTHWEST ALABAMA, EASTERN ARKANSAS, WESTERN TENNESSEE, AND
WESTERN KENTUCKY. SIGNIFICANT RIVER FLOODING WILL PERSIST OVER
MUCH OF THE FLORIDA PENINSULA IN THE WAKE OF IRMA, WHILE
ADDITIONAL RIVER FLOODING WILL BE POSSIBLE ACROSS GEORGIA AND
EASTERN ALABAMA.

…SELECTED PRELIMINARY STORM TOTAL RAINFALL IN INCHES THROUGH 5
AM EDT

…ALABAMA…
EUFAULA MUNI ARPT 3.25
DOTHAN RGNL ARPT 2.76
MONTGOMERY 2.15

…FLORIDA…
FT. PIERCE ST. LUCIE CNTY INTL ARP 15.91
OVIEDO 14.76
CHEKIKA 13.83
INLIKITA 7 WNW 13.63
GAINESVILLE 2.4 NW 12.22
MIMS 8.5 W 12.11
NAPLES 11.87
NATIONAL KEY DEER NWR 11.74
OVIEDO 1.6 SE 11.54
CACHE 11.49
STARKE 11.33
WEST MELBOURNE 11.21
JACKSONVILLE 9.6 SE 11.17
FLEMING ISLAND 2.2 S 11.11
SWITZERLAND 4 WSW 11.11
PANTHER WEST 11.08
ORTEGA 1 WNW 11.00
UNIVERSITY OF FLORIDA 3 NW 10.42
FORT MYERS INTL ARPT 10.33
SUMMERFIELD 3 SSE 10.04
OASIS RANGER STATION 9.67
OKEECHOBEE COUNTY ARPT 9.65
FORT LAUDERDALE EXEC ARPT 9.57
ORLANDO/SANFORD ARPT 9.42
OCHOPEE 9.27
OLUSTEE 3 N 9.17
ALACHUA 5 SE 8.61
MILES CITY 8.26
BELLAIR 3 W 8.11
OPA-LOCKA AIRPORT 7.99
ORLANDO EXECUTIVE ARPT 7.68
FORT WHITE 4 SE 7.57
INTERLACHEN 4 NW 6.22
TALLYRAND 2 NNW 6.15
DAYTONA BEACH INTL ARPT 5.86
HOLLYWOOD 3.9 SW 4.68
PALM CITY 3.1 NW 4.58
FLEMING ISLAND 1.7 SE 4.56
MIAMI BEACH 3.95
VERO BEACH 2.5 S 3.25

…GEORGIA…
ST MARYS RIVER NEAR KINGSLAND 5SSE 10.12
CUMBERLAND SOUND NEAR ST MARYS 5ENE 9.18
HOMELAND 7.99
THALMANN 5 ESE 7.89
BOYS ESTATE 3 S 7.84
FOLKSTON 10 SW 7.80
SAVANNAH/HUNTER AAF 6.88
KINGSLAND 3 WSW 6.85
ATKINSON 1 WSW 6.66
BRUNSWICK, MALCOLM MCKINNON ARPT 6.32
SAPELO ISLAND 1 NW 5.97

…SOUTH CAROLINA…
EDISTO ISLAND 2 WNW 6.05
BLACKVILLE 2 W 6.01
BEAUFORT MCAS 5.88
SANTEE 5 NNE 5.74
FOLLY FIELD 1 SW 5.67
CHARLESTON INTL ARPT 5.53
EASTOVER 6 SW 4.97
NEW ELLENTON 4 S 4.81
EDGEFIELD 4.12
SUMTER 4.11
COLUMBIA METRO AIRPORT 3.14

…SELECTED PEAK WIND GUSTS IN MILES PER HOUR EARLIER IN THE
EVENT…

…ALABAMA…
TROY MUNICIPAL AIRPORT 45
WEEDON FIELD AIRPORT 43
ANNISTON ARPT ASOS 40
MONTGOMERY REGIONAL AIRPORT 40

…FLORIDA…
NAPLES 2 ENE 142
MARCO ISLAND 1 E 130
LELY 2 ESE 122
BIG PINE KEY 2 NNW 120
QUAIL CREEK ESTATES 2 SSW 112
NORTH PERRY AIRPO 2 WNW 109
KEY BISCAYNE 8 SSE 99
MIAMI INTERNATIONAL 1 W 99
NORTH PERRY AIRPO 3 WSW 98
SWEETWATER 2 NE 96
CAPE CANAVERAL 3 NNE 94
OCEAN REEF 8 SE 93
BELLE MEADE 1 S 92
KEY LARGO 8 SSE 92
OCHOPEE 1 W 92
CACHE AT EVERGLADES 91
KEY WEST 2 W 91
ROYAL PALM RANGER S 4 W 91
CORAL GABLES 1 ESE 90
OCEAN REEF 8 SSE 89
SOUTHWEST FLORIDA INTL ARPT 89
MAYPORT NAVAL STATION 87
PORT EVERGLADES 87
DEERFIELD BEACH 3 W 86
JACKSONVILLE INTL ARPT 86
KEY LARGO 1 SE 85
REDLAND 8 NNW 85
FORT MYERS FAA/AP 84
SUNRISE 1 W 84
FLAGLER BEACH 83
GOULDS 1 NE 83
HOMESTEAD PARK 1 WSW 83
OAKLAND PARK 3 NW 83
PINECREST 2 SSW 82
FIU SOUTH CAMPUS 81
HAULOVER CANAL 3 E 81
POMPANO BEACH AIR 1 ESE 81
RSW SOUTHWEST FLORIDA A 81
IMMOKALEE 2 ESE 80
SOUTH MIAMI 2 W 80
FISHER ISLAND 3 ESE 79
FIU NORTH CAMPUS 1 ESE 79
FORT DESOTO PARK 3 W 79
FLORIDA CITY 1 ESE 78
FORT LAUDERDALE 2 W 78
NORTH PERRY AIRPORT 78
SANIBEL 4 ENE 78
SUNRISE 2 E 78
CLEARWATER 4 WNW 77
PARKLAND 2 W 77
WEST MIAMI 2 SE 77
BARTOW 10 SSW 75
DAVIE 2 NE 75
DELRAY BEACH 3 WSW 75
SAINT AUGUSTINE 1 NW 75
LITTLE HAITI 2 SE 74
BUNNELL 72
COUNTRY WALK 1 N 72
HOLIDAY 4 SW 70
INDIAN LAKE ESTATES 2 S 70
LITTLE HAVANA 1 NNW 68
LAUDERDALE BY THE 2 NW 67
PORT EVERGLADES 1 SSE 66
DOWNTOWN SAINT PETE 4 E 65
SANFORD AIRPORT 65
CORAL SPRINGS 1 W 64
DELAND 63
DANIA BEACH 1 NW 62
ST. AUGUSTINE 6 NNW 62
CROSS CITY AIRPORT 61
HIALEAH GARDENS 1 E 61
POMPANO BEACH 61

…GEORGIA…
FORT PULASKI 70
FORT SCREVEN 70
TYBEE ISLAND 1 NNE 65
HARTSFIELD ATLANTA INTL ARPT 64
MIDDLE GEORGIA REGIONAL ARPT 61
SAVANNAH AIRPORT 60
TALLAPOOSA 4 SSE 59
HABERSHAM COUNTY AP 58
VALDOSTA 2 WNW 58
CLEVELAND 57
LITTLE OCMULGEE STATE PARK 57
DUBLIN 54
PERRY 54
COLUMBUS AIRPORT ASOS 53
VIDALIA 53
ATHENS 3 ESE 52
BANKS CROSSING 51
JASPER 2 SSW 48
TUCKER 2 SE 47
MOODY AFB 44

…NORTH CAROLINA…
HIGHLANDS 2 NNW 56
CASHIERS 1 ESE 51
BOOMER 3 ESE 47
BELMONT 45
CHARLOTTE DOUGLAS INTL ARPT 45

…SOUTH CAROLINA…
PARRIS ISLAND 6 E 76
FOLLY BEACH 72
ISLE OF PALMS 1 ESE 68
SULLIVANS ISLAND 1 E 68
BATTERY POINT 1 NNW 66
BEAUFORT 66
CHARLESTON 2 SSW 66
DANIEL FIELD AIRPORT 58
OCONEE COUNTY REGION 58
AUGUSTA BUSH FIELD 55
LANCASTER COUNTY AIRPORT 55

…TENNESSEE…
GATLINBURG 10 S 60
CHATTANOOGA 4 ESE 45

NEXT ADVISORY

NEXT ADVISORY ISSUED AT 1100 AM EDT. PLEASE REFER TO YOUR LOCAL
NATIONAL WEATHER SERVICE OFFICE FOR FURTHER INFORMATION ON THIS
STORM.

FORECASTER TATE

FORECAST POSITIONS

INITIAL 12/0900Z 33.0N 85.2W
12HR VT 12/1800Z 34.9N 87.5W…POST-TROP/EXTRATROP

About Allen Aycoth

President of The Blue Ridge Weather Watch
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