MONTHLY WEATHER REVIEW
TABLE 3. (Continued)
Location Victoria (Sudduth)
Wadsworth South Texas Nuclear Plant
e f g h i
Date/time is for sustained wind when both sustained and gust are listed. Except as noted, sustained wind averaging periods for C-MAN and land-based ASOS reports are 2 min; buoy averaging periods are 8 min; NOS and TCOON stations averaging periods are 6 min; RAWS stations report 10-min-average sustained winds. Storm surge is water height above normal astronomical tide level. Storm tide from TCOON stations is water height above mean lower low water (MLLW). For other stations it is water height above National Geodetic Vertical Datum (1929 mean sea level) unless noted. Incomplete record—more extreme values may have occurred. Note that Colorado River Locks at Matagorda reading was taken from a high water mark in a boathouse referenced to MLLW. Station destroyed—more extreme values may have occurred. Ten-minute average. Oil rig anemometer heights are generally 100–200 ft; wind averaging periods are unknown.
Davis Mountains, and at Guadalupe Pass and The Bowl in the Guadalupe Mountains. These winds were likely enhanced by mountainous terrain.
land friction would reduce the radar winds to near or below the 75–80-kt range determined from the aircraft data.
Tropical storm conditions likely occurred over por- tions of the northeastern Yucatan Peninsula, but there were no reports of tropical storm–force winds from that area. Winds gusted to tropical storm force at Montego Bay, Jamaica. Winds also gusted to tropical storm force on St. Lucia during the passage of the pre-Claudette tropical wave.
Many unofficial observations were received from the landfall area, with a selection included in Table 3. A storm chaser in Port O’Connor reported 83-kt sus- tained winds with a gust to 93 kt measured at the top of a vehicle with good exposure. While this observation is included in Table 3, it is notable that the winds are 15–20 kt higher than the nearby TCOON station and are considered to be in error. A report from Seadrift, Texas, indicated 84-kt sustained winds with a gust to 96 kt. However, an inspection of the site by Na- ional Weather Service (NWS) personnel showed that there may have been funneling of the winds across the instrument. Thus, the report is not included in Table 3.
Data from the NWS Weather Surveillance Radar- 1988 Doppler units (WSR-88Ds) indicated winds of 95– 105 kt between 1500- and 3000-m elevation in the northwest eyewall after Claudette made landfall. It is uncertain how to convert these winds to sustained sur- face winds over land. However, reduction factors de- rived from GPS dropsonde data over water suggest 85– 90-kt sustained surface winds. A further reduction for
Damage surveys were conducted by the staffs of NWS forecast offices in Corpus Christi and Houston. These surveys concluded the damage was consistent with category-1 sustained winds. Unpublished informa- tion from a damage survey by Haag Engineering also supports this determination.
Storm-surge flooding of up to 1.8 m above normal tide levels occurred near where the eye of Claudette made landfall. Storm tides (storm surge plus astro- nomical tide) of up to 2.7 m were measured in the Galveston–Freeport area (Table 3). Tides were up to 0.6 m above normal as far north as the southwestern Louisiana coast and as far south as the Baffin Bay, Texas, area.
Claudette moved quickly westward after landfall, which limited rainfall totals. The highest storm-total rainfall was 165 mm, four miles south-southeast of Til- den, Texas, and there were other reports of up to 150 mm amounts along the storm track. NWS WSR-88D data estimates that as much as 200 mm may have fallen in some areas. These rains caused minor flooding in southern Texas and some flash floods in southwestern Texas. Rainfall of up to 75 mm also occurred over por- tions of the Yucatan Peninsula and the Cayman Islands, with 82 mm reported in Cancun, Mexico.
Two tornadoes were reported during Claudette. An F1 intensity tornado damaged several buildings in Pala- cios, Texas. A second tornado touched down in Port Lavaca, Texas, causing damage to some homes.