1998年6月7～8日為MYEX98實驗中最強的降水過程，期間南海北部地區有一中尺度對流系統形成，並隨梅雨鋒面朝東北東方發展，中尺度對流系統發展及臺灣豪（大）雨發生的同時，梅雨鋒面呈現向北退，鋒前對流南緣並有低層噴流形成發展的罕見現象。本個案牽涉梅雨鋒面、低層噴流及對流潛熱效應相互影響的複雜發展過程，利用MM5中尺度數值模式模擬個案期間各中尺度系統的發展，以渦度收支及非地轉風探討梅雨鋒面的北退機制及低層噴流的發展過程。並針對潛熱釋放、風場強弱及臺灣地形作敏感度測試，進一步地了解三者間的交互作用，以及對於鋒面發展的變化。
模擬結果對於沿著梅雨鋒面發展的中尺度對流系統、高度場及風場的區域加速等現象的掌握相當良好。梅雨鋒面結構在臺灣地區的西段部分為斜壓性弱、水平風切顯著、水氣梯度大、近似垂直不傾斜的淺系統，鋒面強度的維持主要為輻合作用，北退機制則為平流效應所主導。低層噴流則因中尺度對流系統發展時的潛熱釋放，造成局部氣壓下降造成的強輻合作用，以及跨越等壓線至低壓中心的等變壓非地轉風受科氏加速後，疊加至梅雨季盛行的西南氣流而成。
在敏感度測試方面，無潛熱釋放設定中上升運動及輻合作用明顯地減弱，鋒面系統難以維持而消失，個案後期的低層噴流也無法發展生成。初始低層風場平滑後，中尺度對流系統生成的速度較慢且發展強度也較弱，使得輻合作用無法有效地加速風場，影響鋒面移動的速度及低層噴流發展的強度。當無臺灣地形效應，鋒面南方海面上一直為有利於持續地發展且增強中尺度對流系統的環境，梅雨鋒面北退的速度十分迅速，而低層噴流的強度也因輻合作用的加強而有增強的情形。模式間各網格間的相互回饋對於模擬結果的掌握度十分重要，有細網格的回饋作用之模擬結果與真實天氣較為接近。

王時鼎、鄭俠、徐晉淮與丘台光，1985：五、六月間臺灣地區暴雨之環境條件。天氣分析與預報研討會論文彙編，中央氣象局，55-77。
林麗芬，2000。SCSMEX期間梅雨鋒面北退與低層噴流加強之個案分析。國立臺灣大學大氣科學研究所碩士論文，97頁。
陳泰然，1988a：臺灣梅雨研究的回顧。科學發展月刊，16，2，239-266。
陳泰然，1988b：東亞梅雨鋒面之綜觀氣候特徵研究。大氣科學，16，435-446。
陳泰然，1994：台灣梅雨季之豪雨研究。大氣科學，122，455-477。
陳泰然與吳清吉，1978：臺灣五大城市之氣候特性分析。大氣科學，5，1-16。
陳泰然與蒲金標，1985：華南春季低層噴流之形成與臺灣北部地區豪雨之個案分析。大氣科學，12，23-32。
Barnes, S. L., 1964: A technique for maximizing details in numerical weather map analysis. J. Appl. Meteor., 3, 396-409.
Barnes, S. L., 1973: Mesoscale objective map analysis using weighted time series observations. NOAA Tech. Memo. Erl Nssl-62, 60pp.
Chen, C., W.-K. Tao, P.-L. Lin, G. S. Lai, S.-F. Tesng, and T.-C. Chen Wang, 1998a: The intensification of the low-level jet during the development of mesoscale convective systems on a Mei-Yu front. Mon. Wea. Rev., 126, 349-371.
Chen, G. T.-J. and C. Y. Tsay, 1978: A synoptic case study of Mei-Yu near Taiwan. Papers Meteor. Res., 1, 25-36.
____, and C. P. Chang, 1980: The structure and vorticity budget of an early summer monsoon trough (Mei-Yu) over southeastern China and Japan. Mon. Wea. Rev., 108, 942-953.
____, and S. S. Chi, 1980: On the frequency and sped of Mei-Yu front over southern China and the adjacent areas. Papers Meteor. Res., 3, 31-42.
____, and C. C. Yu, 1988: Study of low-level jet and extremely heavy rainfall over northern Taiwan in the Mei-Yu season. Mon. Wea. Rev., 116, 884-891.
____, 1992: Mesoscale features observed in the Taiwan Mei-Yu season. J. Meteor. Soc. Japan, 70, 497-515.
Chen, Q., 1982: The instability of the gravity-inertia wave and its relation to low-level jet and heavy rainfall. J. Meteor. Soc. Japan, 60, 1041-1057.
Chen, S.-J., Y.-H. Kuo, W. Wang, Z.-Y. Tao, and B. Cui, 1998b: A modeling case study of heavy rainstorms along the Mei-Yu front. Mon. Wea. Rev., 126, 2330-2351.
Chen, Y.-L., X. A. Chen, and Y.-X. Gang, 1994: A diagnostic study of the low level jet during TAMEX IOP5. Mon. Wea. Rev., 122, 2257-2283.
____, X. A. Chen, S. Chen, and Y.-H. Kuo, 1997: A numerical study of the low-level jet during TAMEX IOP 5*. Mon. Wea. Rev., 125, 2583-2604.
Cho, H. R., and G. T.-J. Chen, 1995: Mei-Yu frontgenesis. J. Atmos. Sci., 52, 2109-2120.
Chou, L. C., C.-P. Chang, and R. T. Williams, 1990: A numerical simulation of the Mei-Yu front and the associated low level jet. Mon. Wea. Rev., 118, 1408-1428.
Grell, G. A., 1993: Prognostic evaluation of assumptions used by cumulus parameterizations. Mon. Wea. Rev., 121, 767-787.
____, J. Dudhia, and D. R. Stauffer, 1995: A Description of the fifth-generation Penn State/NCAR mesoscale modeling system (MM5). NCAR technical note, NCAR/TN-398+STR, 121pp.
Hsu, W.-R., and W. Y. Sun, 1994: A numerical study of a low-level jet and its accompanying secondary circulation in a Mei-Yu system. Mon. Wea. Rev., 126, 424-436.
Kuo, Y. H., and R. A. Anthes, 1982: Numerical simulation of a Mei-Yu system over southeastern Asia. Papers Meteor. Res., 5, 15-36.
____, and G. T.-J. Chen, 1990: The Taiwan area mesoscal experiment (TAMEX): An overview. Bull. Amer. Meteor. Soc., 71, 488-503.
Maddox, R. A., 1980: An objective technique for separating macroscale and mesoscale features in meteorological data. Mon. Wea. Rev., 108, 1108-1121.
Nagata, M., and Y. Ogura, 1991: A modeling case study of interaction between heavy precipitation and a low-level jet over Japan in the Baiu season. Mon. Wea. Rev., 119, 1309-1336.
Tao, S.-Y., and L. X. Chen, 1987: A review of recent research on the East Asian summer monsoon in China. Monsoon Meteorology, Edited by C. P. Chang, and T. N. Krishnamurti, Oxford University Press, 60-92.
Uccellini, L. W., and D. R. Johnson, 1979: The coupling of upper and lower tropospheric jet streaks and implications for the development of severe convective storms. Mon. Wea. Rev., 107, 682-703.
Wu, C. W., and G. T.-J. Chen, 1988: Composite structure of environmental conditions associated with MCCs in Taiwan Mei-Yu season. Proc. Conference on Weather Analysis and Forecasting, Central Weather Bureau, Taipei, 95-106(in Chinese with English abstract). [Available from the Central Weather Bureau, 64 Kung Yuan Rd., Taipei, Taiwan, R.O.C.]
Yen, H.-C., and Y.-L. Chen, 2002: The role of offshore convergence on coastal rainfall during TAMEX IOP 3. Mon. Wea. Rev., 130, 2709-2730.
Zhang, D., and R. A. Anthes, 1982: A high-resolution model of the planetary boundary layer-sensitivity tests and comparisons with SESAME-79 data. J. Appl. Meteor., 21, 1594-1609.