Meteorological Charts for Bengal Tornado Cases
Jonathan
D. Finch
Links
Main
Page
Convective
Outlooks
Elevated
Mixed Layer
Special
Cases for the United States
Bengal
Tornadoes--background information
Historical
Tornado Tracks for Bangladesh and East India
Assessing
Instability on the Front Range Without Upper Air Data
Latitudinal
Comparison of the Geostrophic Wind Approximation
Potential
Temperature and Mixing Ratio--Contributions to CAPE on Elevated Terrain
I am in the process of re-doing all the surface maps
below. The maps that have been updated have a red star. Keep in mind that
the surface wind is suspect at some of the sites
such as Bogra and Ishurdi.
Here is a map with the most of the tornadoes plotted(except for the extremities of Bangladesh and coastal and Assam India).
Date | # Fatalities | Surface | 500mb | reanalysis 500mb | Jet(200mb) | reanalysis 250 or 200 mb |
sounding | hodograph | Jet region | |
04-07-1888 | 118, 70 | 05Z | ||||||||
05-12-51 | 300 | 12Z | 12Z | exit | ||||||
03-19-61 | 210 | 12Z | 0Z 12Z | 12Z | 12Z 12Z | exit | ||||
03-10-63 | 20 | 12Z | 12Z | exit | ||||||
04-19-63 | 139 | 12Z | 12Z | 06Z 12Z 12Z | exit | |||||
04-11-64 | 500 | maxes | 00Z 10th | 12Z | 12Z | jetlet off of main branch | ||||
04-16-67 | 77 | 12Z | 12Z | 12Z | exit | |||||
04-19-67 | 12 | 00Z | 12Z | 12Z | exit | |||||
05-01-67 | 30 | 12Z | 12Z | 12Z | exit | |||||
03-20-68 | 20 | 06Z | 00Z | 12Z | 12Z | exit | ||||
04-03-68 | 42 | 09Z | 0Z 2 0Z 3 12Z | 12Z | 12Z | entrance | ||||
04-11-68 | 121 | 12Z | 00Z 12Z | 12Z | 12Z | not defined | ||||
04-14-69 | 600, 320 | 12Z | 00Z 12Z | 06Z 12Z | 06Z 12Z | jetlet off of main branch | ||||
04-17-69 | 84 | 12Z | 12Z | 12Z | 06Z 12Z | jetlet off of main branch | ||||
04-28-69 | 8 | 12Z | entrance | |||||||
04-13-70 | 37 | 12Z | 12Z | exit | ||||||
04-01-72 | 200 | 00Z | 12Z | 12Z | not defined | |||||
04-05-72 | 75 | 12Z | 12Z | north of region | ||||||
04-29-72 | 300 | 12Z | 00Z | 12Z | 12Z 12Z | exit | ||||
04-12-73 | 200 | 00Z | 12Z | 12Z | north of region but approaching |
|||||
04-17-73 | 681 | 12Z | 12Z | 12Z 12Z | exit | |||||
05-09-76 | 1 | 12Z | entrance | |||||||
04-01-77 | 500 | 12Z | 12Z | 12Z | exit | |||||
04-07-77 | 2 | 12Z | not defined | |||||||
04-15-77 | 10 | 12Z | entrance | |||||||
04-16-78 | 173 | 09Z * | 12Z | 12Z | exit | |||||
04-18-78 | 128 | 06Z | 12Z | 12Z | jetlet off of main branch--exit | |||||
03-01-81 | 15 | 12Z | 12Z 12Z | exit | ||||||
04-12-81 | 200 | 06Z * | 00Z | 06Z | 06Z | exit | ||||
04-17-81 | 120 | 09Z | 00Z | 12Z | 12Z | exit | ||||
04-12-83 | 50 | 06Z | 00Z | 06Z | 06Z | entrance | ||||
04-24-83 | 25 | 06Z | exit | |||||||
04-14-86 | 100 | 09Z * | 12Z | 12Z | exit | |||||
04-26-89 | 1300 | 12Z | 00Z 12Z | 12Z | 12Z | 12Z | exit | |||
04-28-89 | 12 | 09Z | 00Z | 12Z | 12Z | exit | ||||
04-20-90 | 76 | 12Z | 00Z | 12Z | 12Z | not defined | ||||
04-29-90 | 19 | 12Z | 12Z | 12Z | entrance | |||||
05-07-91 | 45 | 06Z | 00Z | 12Z | 12Z | exit | ||||
05-18-91 | 50 | 06Z | 00Z | 06Z | 06Z | jetlet off of main branch | ||||
01-08-93 | 50 | 00Z | 12Z | 12Z | entrance | |||||
04-09-93 | 145 | 12Z | 00Z | 12Z | 12Z | entrance | ||||
04-08-95 | 40 | 06Z | 00Z | 12Z | 00Z | 12Z | exit | |||
05-13-96 | 700 | 06Z * | 12Z 12 00Z 12Z | 12Z | 00Z | 12Z | App. | App. | exit | |
03-24-98 | 250 | 09Z | 12Z 00Z | 12Z | 12Z | exit | ||||
04-22-03 | 40 | 06Z | 12Z | 12Z | ?? | |||||
05-04-03 | 31 | 06Z | 12Z | 12Z | 12Z | exit | ||||
04-14-04 | 75 | 06Z 09Z 12Z | 00Z | 12Z | 12Z | 00Z app. | exit | |||
03-20-05 | 50-65 | 12Z | 12Z | 12Z | 12Z | exit |
List of credits
Pedler and Crombie, 1888
Petersen and Mehta, 1981
Pakistan Observer
Amrita Bazar Patrika
Mowla, 1969
Bangladesh Observer
Ahmed, 1977
Ghosh, 1982
Journal of Meteorology(British)
OFDA/CRED disaster database
Ono, 1997
Misra et al., 1996
Minneapolis Star Tribune
Associated Press
Tom Grazulis "Significant Tornadoes"