UDC 661.616.3:651.616.~784)“1967.~.18-~”“BEOLAH” TORNADOES ASSOCIATED WITH HURRICANE BEULAH ON SEPTEMBER 19-23, 1967
One hundred fifteen tornadoes are known to have occurred in association with humcane Beulah. The total was far greater than the number reported with any previous North Atlantic tropical cyclone in history. The spatial distribution of the tornadoes with reference to the hurricane center was examined,...
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| Language: | English |
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| Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.395.3175 http://docs.lib.noaa.gov/rescue/mwr/098/mwr-098-07-0541.pdf |
| Summary: | One hundred fifteen tornadoes are known to have occurred in association with humcane Beulah. The total was far greater than the number reported with any previous North Atlantic tropical cyclone in history. The spatial distribution of the tornadoes with reference to the hurricane center was examined, and it is shown that the best relationships on location of the hurricane-tornado within the parent cyclone are obtained with respect to true azimuth and are superior to those obtained using an orientation from a heading along the tropical cyclone track. With few exceptions, the tornadoes associated with hurricane Beulah occurred outside the area of known hurricaneforce winds. The period of the day, the orientation of the Texas coastline in relation to the hurricane’s path, and the length of time Beulah lingered near the coast may have contributed to the record.number of occurrences of hurricanetornadoes. 542 MONTHLY WEATHER REVIEW vel. 98, No. 7 FIGURE 1.-The 115 Texas tornadoes and one waterspout spawned by hurricane Beulah on Sept. 19-23, 1967. The symbols indicate the counties in which the storm occurred rather than exact locatiofw. fessional judgment in interpreting correctly the evidence at hand. This includes eliminating duplicate reports and rejecting others that do not indicate clearly the storm to be tornadic in character. The number of tornadoes (115) attributed to hurricane Beulah plus one waterspout were determined from a thorough review of all storm reports collected by ESSA Weather Bureau mces in the area affected by hurricane Beulah,2 by examining 156 Hurricane Report questionnaires returned to the ESSA State Climatologist's office at Austin, Tex., by persons in the affected area, and by scanning more than 700 newspaper clippings pertaining to 1 Reports transmitted on the ESSA Weather Bureau Ramp and Warning Coordination System teletypewriter circuit. hurricane Beulah for descriptive evidence of tornado occurrence. The daily September totals of tornadoes associated with |
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