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Tropical Cyclone Report

Hurricane Isidore

14 - 27 September 2002

Lixion A. Avila
National Hurricane Center
20 December 2002

Hurricane Isidore was a slow-moving tropical cyclone that hit western Cuba as a category 1 hurricane (on the Saffir-Simpson Hurricane Scale) and the northern Yucatan Peninsula as a category 3 hurricane. It made landfall on the Louisiana coast as a strong tropical storm.

a. Synoptic History

A tropical wave moved off the coast of Africa on 9 September accompanied by a large area of thunderstorms. The convective activity decreased significantly as the system moved toward the west-southwest during the next few days, but the wave maintained a good low-cloud signature and cyclonic rotation. As the wave approached 50 West, the shower activity began to increase and an upper-level anticyclone became evident over the system. By 1800 UTC 14 September, there was enough convection and rotation to classify the system as a tropical depression as it approached Trinidad and the northern coast of Venezuela. The depression moved west-northwestward and its development was halted by its interaction with land. By 1800 UTC 15 September, the system had degenerated into a tropical wave in the eastern Caribbean Sea. However, as the wave entered the western Caribbean Sea, it redeveloped a closed circulation and regained tropical depression status at 1200 UTC 17 September, about 120 n mi south of Kingston, Jamaica.

The depression became Tropical Storm Isidore around 0600 UTC 18 September, and, embedded within a weak steering current, the tropical cyclone moved very slowly toward the northwest, passing just west of Jamaica. Isidore then moved very slowly toward the west-northwest across the Cayman Islands and became a hurricane at 1800 UTC 19 September. Its winds reached 90 knots around 0600 UTC 20 September as it was nearing the southwest coast of the Isle of Youth, Cuba. Although the minimum pressure continued to drop, Isidore's winds decreased a little bit and the hurricane made landfall near Cabo Frances in western Cuba at 2100 UTC 20 September with maximum winds of 75 knots. For more than 12 hours, Isidore relentlessly pounded western Cuba. The hurricane then moved west and southwestward toward the Yucatan Peninsula. Isidore re-strengthened and reached its maximum intensity of 110 knots at 1800 UTC 21 September. However, its minimum central pressure of 934 mb occurred at 1200 UTC 22 September, just before landfall near Puerto Telchac on the north coast of Yucatan.

Isidore meandered for 24 to 36 hours over northern Yucatan and weakened to a minimal tropical storm. It then moved northward over the Gulf of Mexico where the circulation expanded but the cyclone never redeveloped an inner core of strong winds. Isidore made landfall with winds of 55 knots and a minimum pressure of 984 mb just west of Grand Isle, Louisiana at 0600 UTC 26 September. Once it moved inland, Isidore weakened to a tropical depression and moved north-northeastward across the southeastern United States, producing torrential rains. It became an extratropical storm over southwestern Pennsylvania at 1800 UTC 27 September, and was then absorbed into a frontal zone.

The "best track" chart of the tropical cyclone's path is given in Figure 1a and Figure 1b, with the wind and pressure histories shown in Figure 2and Figure 3, respectively. The best track positions and intensities are listed in Table 1.

b. Meteorological Statistics

Observations in Isidore (Figure 2 and Figure 3) include satellite-based Dvorak technique intensity estimates from the Tropical Analysis and Forecast Branch (TAFB), the Satellite Analysis Branch (SAB) and the U. S. Air Force Weather Agency (AFWA), as well as flight-level and dropwindsonde observations from flights of the 53rd Weather Reconnaissance Squadron of the U. S. Air Force Reserve Command and the NOAA hurricane reconnaissance plane. Fixes from various Cuban radars, as well as data from the Cancun radar received at the NHC in real time were very useful in tracking Isidore. Data from the NOAA high altitude jet was used to analyze the environment surrounding the hurricane and was ingested by numerical models.

Isidore was upgraded to tropical depression status based on a fix provided by a reconnaissance plane. It was a report of a poorly defined center of 1009 mb with 20 to 25 knot southwesterly winds at 1500 feet around 1800 UTC 14 September. It was downgraded to a tropical wave in the eastern Caribbean Sea the next day, when a reconnaissance plane could not find a closed circulation.

Isidore moved very close to the south of Cayman Brac, which reported sustained winds of 42 knots with gusts to 61 knots at 0325 UTC 19 September. During the time Isidore was moving nearby the Isle of Youth, the eye contracted to 8 n mi, and based on data from a dropsonde in the eyewall, surface winds were near 90 knots. Thereafter, there was a slight weakening as suggested by data from a reconnaissance aircraft. In fact, the official best track over Cuba was adjusted with data provided by the Cuban Weather Service. Surface observations from Cuba and a post-analysis of aircraft and dropsonde data suggest that Isidore crossed Cuba with 75-knot winds and not with the 85 knots indicated operationally. The minimum pressure measured in western Cuba was 970 mb at Isabel Rubio, and that station experienced gusts to 75 knots at 2140 UTC 20 September and about 554 mm (21.7 in) of rain. Several locations in the area reported the calm of the eye. There was a strong storm surge along the south coast of Cuba in Playa Cajio, south of Habana and in Ensenada de Cortes, Pinar del Rio. When Isidore was already in the Gulf of Mexico, rainbands over Cuba produced a wind gust of 86 knots in an isolated tornado in the town of Candelaria at 1600 UTC 23 September.

Isidore's peak intensity of 110 knots at 1800 UTC 21 September, was a compromised between adjusted aircraft flight-level winds and satellite estimates. Although the winds remained unchanged, the central pressure continued to drop to a minimum of 934 mb at 1200 UTC 22 September. At this time, the cloud pattern looked the best one imagery and the three satellite agencies reported T-numbers of 6.5 on the Dvorak scale, corresponding to 127 knots. However, aircraft data did not support such intensity.

The maximum winds reported by a station in Yucatan were gusts to 70 knots, with a minimum pressure of 969.9 mb at Merida around 2350 UTC 22 September as the western eyewall moved through the area. Figure 4a and Figure 4b are radar images showing the eye of Isidore making landfall in western Cuba and Yucatan, respectively.

Later, when a weakened Isidore was heading for Louisiana, it reached 55-knot winds based on data from the "Deepwater Pathfinder", which reported sustained winds of 56 knots with gusts to 71 knots and 20 ft waves at 1743 UTC 27 September. Because Isidore was a large tropical cyclone, there were numerous observations from ships of tropical storm force winds. Some of these observations are given in Table 2

The Belle Chase Naval Air Station in Louisiana experienced northeast winds of 50 knots with gusts 60 knots at 0155 UTC 26 September. This is the highest wind reported by any station as Isidore made landfall in the Louisiana coast. The highest storm surge reported along the U.S. coast was 8.3 feet and occurred at Rigoletes, Louisiana and at Gulfport Harbor, Mississippi. Additional selected surface observations from land stations and data buoys are given in Table 3 and Table 4.

c. Casualty and Damage Statistics

Press reports indicate that there were 2 indirect deaths attributable to Isidore in Merida, Mexico. One was electrocuted by a downed power line, another died in a weather-related car crash. Four direct and one indirect deaths occurred in the United States. One was a marine fatality drowning from a rip current near Port Fourchon, LA on 22 September when Isidore was still over Yucatan, another one was a drowning in a vehicle parked near a casino in Mississippi when storm surge inundated the parking lot. A third died when a tree fell across his car in eastern Mississippi, and the forth one died after driving into 10 feet of water in Clarksville, Tennessee. The indirect death occurred in Mississippi when a man suffered from a cardiac arrest and could not be reached by rescuers due to floodwaters.

Damage from Isidore in Jamaica was mainly related to torrential rains. Western Cuba and Yucatan were severely damaged by the hurricane primarily the agriculture and cattle industry. According to Tropical Cyclone Reports from the weather services of Cuba and Mexico, numerous houses and power lines were damaged by wind.

In the United States, the Property Claim Services Division of the Insurance Services Office reports that insured losses due to Isidore totaled 165 million dollars. Using a two to one factor for insured to overall damage gives a total damage estimate of $330 million. Most of the damage occurred in Louisiana.

d. Forecast and Warning Critique

Average official track errors (with the number of cases in parentheses) for Isidore were 32 (31), 55 (31), 73 (29), 101 (27), and 177 (23) n mi for the 12, 24, 36, 48, and 72 h forecasts, respectively. These errors are lower than the average official track errors for the 10-yr period 1992-2001 of 43, 81, 115, 148, and 222, respectively. Table 5 which includes the track model errors indicates that the NCEP global model (GFS) performed remarkably well with errors lower than the official forecast errors. Furthermore, the U.S. Navy global model (NGPS), which has been upgraded this hurricane season, performed even better than the GFS. These two global models captured the anomalous southward track of Isidore over Yucatan. This uncommon southward track was not taken into consideration in the official forecast and may have been the cause of errors larger than these two models.

Average official intensity errors were 9, 16, 22, 30, and 46 kt for the 12, 24, 36, 48, and 72 h forecasts, respectively. These errors are higher than the average official intensity errors over the 10-yr period 1992-2001 which are: 7, 11, 14, 16, and 19 kt, respectively. Because the official track forecast kept Isidore over water a continued strengthening was indicated. Instead, Isidore moved over Yucatan and weakened, causing large intensity errors. Tthe official intensity forecasts were correct in not predicting a rapid intensification after Isidore moved back over the Gulf of Mexico and headed for Louisiana.

Due to Isidore's track near many land areas, a large number of watches and warnings were issued and coordinated with various countries from the Caribbean region. They are summarized in Table 6.



Table 1: Best track for Hurricane Isidore, 14-27 September, 2002. Positions and pressures given during the tropical wave stage are representative values for the low-level vorticity center.
Date/Time
(UTC)
PositionPressure
(mb)
Wind Speed
(kt)
Stage
Lat.
(°N)
Lon.
(°W)
14 / 180010.060.5100925tropical depression
15 / 000010.262.4100925"
15 / 060010.664.3100925"
15 / 120011.266.4100925"
15 / 180012.368.5100925tropical wave
16 / 000014.270.5100920"
16 / 060015.071.9100820"
16 / 120015.573.2100820"
16 / 180015.774.5100820"
17 / 000015.875.3100825"
17 / 060015.876.1100825"
17 / 120015.976.8100830tropical depression
17 / 180016.377.4100630"
18 / 000016.777.7100630"
18 / 060017.178.1100635tropical storm
18 / 120017.778.5100440"
18 / 180018.778.6100145"
19 / 000019.379.399850"
19 / 060019.780.499050"
19 / 120019.980.999060"
19 / 180020.481.798365hurricane
20 / 000020.782.397975"
20 / 060021.183.096790"
20 / 120021.583.596685"
20 / 180021.884.096575"
21 / 000022.184.396475"
21 / 060022.385.196485"
21 / 120022.085.8955100"
21 / 180021.986.1946110"
22 / 000022.186.5947110"
22 / 060022.087.4936110"
22 / 120021.988.2934110"
22 / 180021.688.9935110"
23 / 000021.089.4950100"
23 / 060020.689.695270"
23 / 120020.189.696060tropical storm
23 / 180020.389.496850"
24 / 000020.589.398035"
24 / 060021.089.598545"
24 / 120021.789.798750"
24 / 180022.189.898850"
25 / 000023.089.798750"
25 / 060024.289.798750"
25 / 120025.490.299050"
25 / 180026.390.498855"
26 / 000027.590.398955"
26 / 060029.190.398455"
26 / 120030.089.998555"
26 / 180032.289.898840"
27 / 000033.089.099220tropical depression
27 / 060035.086.599520"
27 / 120039.182.999820"
27 / 180040.979.599920extratropical
28 / 0000absorbed
22 / 120021.988.2934110minimum pressure
20/ 210022.084.196475landfall at Cabo Frances, Western Cuba.
22/ 210021.389.3936110landfall at Puerto Telchac, Yucatan, Mexico.
26/ 060029.190.398455landfall just west of Grand Isle, LA.


Table 2: Selected ship reports with winds of at least 34 kt for Isidore, 14-27 September, 2002.
Ship Name or Call SignDate/Time (UTC)Lat.
(°N)
Lon.
(°W)
Wind dir/speed (deg/kt)Pressure (mb)
PFRO19/060018.678.8150/46 1004.0 
ELWX520/020025.080.0140/33 1012.8 
C6FM720/060022.787.4100/35 1006.0 
PDHU20/210024.583.4080/37 1005.0 
ZCAQ820/210020.281.1230/35 1005.1 
C6MF521/060023.180.6100/40 1010.2 
LAZK421/090023.486.9030/37 1002.0 
PCAW21/120020.883.8150/39 1002.0 
LAZK421/120024.187.7050/38 1002.0 
PFOH22/000021.584.7180/39 1000.0 
C6YE22/030024.386.4070/44 1000.5 
C6YE22/090023.485.7100/44 999.4 
C6FM622/120025.089.7050/42 1003.0 
C6YE22/150022.085.6120/36 1001.4 
PGFE23/060019.895.2310/39 1005.8 
PGFE23/090019.995.3320/39 1005.8 
WPPO23/120026.689.5090/40 1005.5 
VSCX423/120026.289.2080/34 1007.5 
VSCX423/150026.790.1070/37 1010.4 
PGFE23/150020.095.5320/45 1006.9 
PGFE23/180019.995.6310/41 1005.0 
PGFE23/210020.095.7310/39 1004.2 
VSCX423/210027.692.0050/35 1010.0 
PGFE24/000020.095.8320/45 1004.5 
PGFE24/060019.995.6310/45 1007.2 
PGFE24/090019.695.1290/45 1005.0 
DGNB24/110025.084.9130/35 1007.3 
C6FM624/120026.988.5050/53 1006.0 
PGFE24/120019.594.7290/41 1004.2 
H3GQ24/120027.290.5040/44 
PGFE24/150019.694.6300/45 1005.8 
PGFE24/180019.694.5290/41 1005.1 
WGMJ24/180027.789.0090/44 1005.5 
3FZQ724/180028.288.4040/34 1006.0 
PGFE24/210019.794.4280/47 1002.7 
H3GQ24/230026.187.5120/38 
DA36725/030027.992.4040/37 1005.0 
DGNB25/030027.090.2070/35 1002.7 
DGNB25/040027.090.5070/37 1002.7 
H3GQ25/060025.786.1130/39 1005.0 
PGFE25/060020.094.0290/39 1006.0 
DGNB25/070027.391.4050/37 1001.2 
PGFE25/090020.093.9290/44 1004.1 
DGNB25/120027.492.8010/39 1001.4 
PGFE25/120020.193.9290/41 1006.0 
VSXC425/120028.494.5030/35 1010.4 
CGJN25/120029.287.5100/35 1004.8 
DGNB25/130027.593.0340/41 1001.4 
DGNB25/140027.593.1340/39 1001.9 
PGFE25/150020.593.7290/39 1007.1 
DGNB25/150027.693.1320/43 1002.7 
VSCX425/150027.594.4030/35 1006.5 
DGNB25/160027.693.2340/37 1002.6 
DGNB25/180027.693.4350/37 1002.3 
WRFJ25/180027.685.1130/37 1008.3 
H3GQ25/180022.885.1160/40 1005.0 
C6JN25/180029.087.3120/39 1003.4 
C6YE25/180023.386.5180/44 1002.0 
DGNB25/190027.793.6350/37 1002.3 
DGNB25/200027.793.8350/37 1002.1 
DGNB25/210027.794.0350/39 1002.3 
C6FM725/210027.894.1080/35 999.0 
C6JN25/210028.987.2120/39 1000.0 
LANR525/210027.094.2010/37 1001.9 
DGNB25/230027.694.4350/35 1003.0 
3FZQ725/230026.986.4160/45 992.0 
C6JN26/000028.887.1110/50 998.3 
PFAS26/000027.587.5130/37 995.6 
C6YE26/000025.387.0180/45 1008.5 
WRFJ26/000027.785.8130/38 1002.7 
DGNB26/020027.594.9340/35 1004.9 
C6JN26/030028.887.1120/50 995.4 
GOVL26/030025.585.9170/34 1002.5 
PEBP26/060026.684.4140/41 1006.8 
WRFJ26/060028.085.4130/42 1003.5 
GOVL26/060025.886.6180/34 1000.8 
C6JN26/060028.887.0140/49 995.0 
C6YE26/120029.287.6150/36 994.0 
C6JN26/150028.687.0200/40 997.0 
C6JN26/210030.188.6220/38 995.4 


Table 3: Table 3. Selected buoy and C-MAN observations for Isidore 14-27 September.
Minimum
Sea-level
Pressure
Maximum Surface Wind Speed
(kt)
LocationDate/
Time
(UTC)
Press.
(mb)
Date/
Timea
(UTC)
Sust.
Windb
(kts)
Peak
Gust (kts)
Storm
Surgec
(ft)
Storm
Tided
(ft)
Rain
(storm total)
(in)
Gulf of Mexico
42002 (25.2N 94.4W)  25/2000 34 42    
42003 (25.9N 86.0W)25/2100 1000.2 26/0000 38 48    
42039 (28.8N 86.1W)26/0800 998.0 26/0800 38 45    
42040 (29.2N 88.2W)26/0900 989.5 26/0030 39e 51    
42041 (27.5N 90.5W)26/0500 988.6 26/0700 34 40    
42007 (30.1N 88.8W)26/1200 987.1 26/0310 46e 58    
CSBF1 (29.7N 85.4W)26/1300 1001.1 26/0800 40 50    
BURL1 (28.9N 89.4W)26/0900 984.7 25/2300 46 59    
DPIA1 (30.3N 88.1W)26/0900 989.5 26/1000 42 52    
GDIL1 (29.3N 90.0W)26/0900 986.6 26/0440 37e 62    
aDate/time is for wind gust when both sustained and gust are listed.
bExcept as noted, sustained wind averaging periods for C-MAN and land-based ASOS reports are 2 min; buoy averaging periods are 8 min.
cStorm surge is water height above normal astronomical tide level.
dStorm tide is water height above National Geodetic Vertical Datum (1929 mean sea level).
e10-min


Table 4: Table 4. Selected surface observations for Isidore, 14-27 September, 2002.
Minimum
Sea-level
Pressure
Maximum Surface Wind Speed
(kt)
LocationDate/
Time
(UTC)
Press.
(mb)
Date/
Timea
(UTC)
Sust.
Windb
(kts)
Peak
Gust (kts)
Storm
Surgec
(ft)
Storm
Tided
(ft)
Rain
(storm total)
(in)
Jamaica
Kingston18/0900 1007.5 18/1045  41    
Cotton Tree Gully       27.2 
Mount Nelson       18.9 
Cedar Valley       18.9 
Cayman Islands
Cayman Brac19/0325 1001.0 19/0325 42 61    
Isla de la Juventud, Cuba
78324 Punta del Este20/1000 1000.6 20/1310 50 71   24.6 
78321 La Fe20/1500 999.9 20/1045 54 72   19.6 
78309 Cuba-Francia20/1100 999.5 20/1235 43 71   13.9 
78221 Nueva Gerona20/1100. 1004.2 20/1200 45 67   17.9 
Pinar del Rio, Cuba
78310 Cabo San Antonio21/0600 991.4  37 57   14.6 
78315 Pinar del Rio21/2100 990.9 20/2150 46 63   13.9 
78317 Paso Real21/2220 995.7 21/1745 38 50   14.0 
78313 Isabel Rubio21/2140 970.0 22/0030 54 74   21.7 
78312 Santa Lucia21/0000. 992.6      6.3 
78316 La Palma21/0000 993.6 22/0130  53    
78318 Bahia Honda21/0000 1001.9 22/1540 53    6.0 
78314 San Juan21/2140 990.4 21/0045 37 58   17.6 
78311 La Bajada       22.3 
Yucatan, Mexico
Merida23/0000 969.9 22/2350 43 70   5.8 
Alabama
Dauphin Island26/1300 989.5       
Mobile State Docks      5.9  
Middle Bay Light House      6.1  
Brookley Field26/1343 992.0 26/1129 40 50    
Bay Minette       11.0 
Mobile26/1410 991.0 26/1226 42 50   8.7 
Semmes26/1345 991.0      11.9 
Louisiana
Belle Chasse Naval Air26/1053 985.1 26/0155 50 60 7.48   
New Orleans26/1207 985.1 26/0525 35 42    
New Orleans Int. Airp.26/1147 985.8 26/0757 40 47   7.5 
Bootheville26/0953 985.8 26/0440  37   5.3 
East Lake Pontchartrain  26/0510  36    
Slidell26/1226 985.1      4.4 
Rigoletes     8.3   
Sea Rim State Park  25/2144  35    
Mississippi
Gulfport26/1359 987.1 26/0725  43 8.26  5.5 
Pascagoula26/1316 989.9 26/1310  35   4.8 
Kessler26/1200 987.1 26/0155  41    
Point Cadet        
Florida
Pensacola26/1153 995.0 26/0258  44  5.2 9.1 
Pensacola Naval Air (NPA)  26/1256  43   6.7 
Destin  26/1221 35 45   6.1 
Eglin Air Force (VPS)  26/1340  46    
Hurlburt Field (HRT)  26/0839  49    
Pensacola Beach  26/0130  55    
Perdido Key  26/0330  47    
Pensacola Escambia  26/0830  49    
Fort Walton Beach  26/0807  44    
Apalachicola (ASOS)  26/1258  38    
Panama City (ASOS)  26/0653  35    
aDate/time is for wind gust when both sustained and gust are listed.
bExcept as noted, sustained wind averaging periods for C-MAN and land-based ASOS reports are 2 min; buoy averaging periods are 8 min.
cStorm surge is water height above normal astronomical tide level.
dStorm tide is water height above National Geodetic Vertical Datum (1929 mean sea level).


Table 5: Preliminary forecast evaluation (heterogeneous sample) for Isidore, 14-27 September, 2002. Forecast errors for tropical storm and hurricane stages (n mi) are followed by the number of forecasts in parentheses. Errors smaller than the NHC official forecast are shown in bold-face type.
Forecast TechniquePeriod (hours)
1224364872
CLP544 (30)96 (28)164 (26)240 (24)384 (20)
GFDI33 (32)58 (30)87 (28)115 (26)188 (22)
GFDL34 (29)52 (27)85 (25)119 (23)164 (20)
LBAR38 (30)84 (28)137 (26)201 (24)327 (20)
AVNI27 (30)43 (28)55 (26)68 (24)116 (20)
AVNO35 (30)45 (28)63 (26)75 (24)122 (20)
AEMI28 (26)49 (25)73 (23)99 (22)155 (19)
BAMD38 (30)67 (28)91 (26)133 (24)242 (20)
BAMM46 (30)77 (28)99 (26)139 (24)247 (20)
BAMS57 (30)95 (28)123 (26)161 (24)256 (20)
NGPI42 (33)60 (31)80 (29)100 (27)133 (23)
NGPS34 (33)45 (31)57 (29)78 (27)105 (23)
UKMI38 (32)74 (30)101 (28)132 (26)209 (22)
UKM31 (16)50 (15)100 (14)121 (13)194 (11)
A98E42 (30)74 (28)98 (26)131 (24)258 (20)
A9UK45 (15)77 (14)118 (13)158 (12)283 (10)
GUNS31 (33)53 (31)72 (29)95 (27)151 (23)
GUNA29 (32)47 (30)64 (28)85 (26)140 (22)
OFCL32 (31)55 (31)73 (29)101 (27)177 (23)
NHC Official (1992-2001 mean)43 (2199)81 (1965)115 (1759)148 (1580)222 (1272)
*Output from these models was unavailable at time of forecast issuance.


Table 6: Watch and warning summary for Isidore, 14-27 September, 2002.
Date/TimeActionLocation
18/0300Tropical storm warning issuedJamaica 
18/0300Tropical storm watch issuedCayman Islands 
18/1500Tropical storm warning issuedLittle Cayman and Cayman Brac 
18/1500Hurricane watchCuba from Villa Clara westward including the Isle of Youth. 
18/1800Tropical storm warning extendedGrand Cayman 
19/0000Hurricane warning issuedCienfuegos and Villa Clara westward including the Isle of Youth. 
19/0000Hurricane watch extendedto include Santic-Spiritus and Ciego de Avila 
19/0900Tropical Storm warning discontinuedJamaica 
19/2100Tropical storm watch issuedLower Florida Keys west of the seven mile bridge including Dry Tortugas. 
19/2100Hurricane watch discontinuedCuba east of Matanzas 
20/1100Tropical storm warning discontinuedCayman Islands 
20/1500Tropical sorm watch discontinuedLower Florida Keys west of the seven 
20/1500Tropical storm warning and a hurricanes watchYucatan from Progreso to Tulum including Cozumel 
21/0900Hurricane warning issuedCabo Catoche to Progreso and Cozumel 
21/1100Hurricane warning extendedTulum to Cabo Catoche 
21/1200All warnings discontinuedexcept for Pinar del Rio and the Isle of Youth 
22/1000Hurricane warning extendedYucatan from Progreso to Campeche 
22/1500all warnings discontinuedCuba for Pinar del Rio and the Isle of Youth. 
23/0545Tropical Storm warning issuedMexico from Campeche to Veracruz 
23/0545Hurricane warning discontinuedMexico from Tulum to Cabo Catoche 
23/1500Hurricane warning replaced by tropical storm warningCabo Catoche to Veracruz 
24/1500Hurricane watch issuedCameron Louisiana to Pascagoula Mississippi. 
24/1500Tropical storm warning issuedHigh Island Texas to Destin Florida. 
24/2100Tropical storm warning discontinuedMexico west of Campeche 
25/1500Tropical storm warning extendedalong the Florida coast to St. Marks 
25/1500all warnings discontinuedYucatan 
26/0900Hurricane watch discontinuedCameron to Pascagoula 
26/1500Tropical storm warning discontinuedwest of Morgan City, Louisiana 
26/1800Tropical storm warning discontinuedwest of the mouth of the Mississippi River. 
26/2100All coastal warnings discontinuedmouth of the of the Mississippi River to St. Marks 

Best track positions for Isidore

Figure 1a: Best track positions for Isidore, 14- 27 September 2002. Track after 0000 UTC 27 September is based on analyses from NOAA Hydrometeorological Prediction Center.

Best track positions for Isidore

Figure 1b: Best track positions for Isidore, 14- 27 September 2002 denoting the landfall points.

Selected wind observations and best track maximum sustained surface wind speed curve for Isidore

Figure 2: Selected wind observations and best track maximum sustained surface wind speed curve for Isidore, 14-27 September 2002. Aircraft observations have been adjusted for elevation using 90%, 80%, and 80% reduction factors for observations from 700 mb, 850 mb, and 1500 ft, respectively. Dropwindsonde observations include actual 10 m winds (sfc), as well as surface estimates derived from the mean wind over the lowest 150 m of the wind sounding (LLM), and from the sounding boundary layer mean (MBL).

Selected pressure observations and best track minimum central pressure curve for Isidore

Figure 3: Selected pressure observations and best track minimum central pressure curve for Isidore, 14-27 September,

Image from Havana radar of Hurricane Isidore

Figure 4a: Image from Havana radar provided by the Instituto de Meteorologia, Cuba during the time Isidore was making landfall in western Cuba

Image from Cancun radar of Hurricane Isidore

Figure 4b: Image from Cancun radar provided by the Servicio Meterorologico Nacional of Mexico during the time Isidore was making landfall near Puerto Telchac, Yucatan.



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Page last modified: Wednesday, 14-Feb-2007 18:41:51 UTC