2 Meteorology 



This chapter summarizes the meteorological measurements made during the 

 current year and in combination with all previous years. Meteorological 

 measurements during storms are given in Chapter 9. 



Mean air temperature, atmospheric pressure, and wind speed and direction 

 were computed for each data file, which consisted of data sampled two times 

 per second for 34 min every 6 hr beginning at or about 0100, 0700, 1300, 

 and 1900 hr eastern standard time (EST); these hours correspond to the time 

 that the National Weather Service (NWS) creates daily synoptic weather maps. 

 During storms, data recordings were made more frequently. Meteorological 

 data are summarized in Table 2. 



Table 2 























Meteorological Statistics 



















Month 



Mean 



Air Tenperature 



deg C 



Mean 

 Atmospheric Pres. 

 irb 



Precipitation, mm 







Wind Resultants 







1994 



1980-1994 



1994 

 Total 





1978-1994 





Speed 

 m/sec 



Direction 

 deg 



Speed Direction 

 m/sec deg 



1994 



1983-1994 



1994 1983-1994 



Mean 



Maxima M 



inima 



Jan 



3.4 



6.2 



1021.3 1017.9 



182 



112 



210 



44 



2.8 



322 



2.3 



332 



Feb 



5.3 



6.7 



1021.7 1017.4 



85 



71 



113 



20 



1.5 



326 



1.9 



344 



Mar 



10.2 



9.5 



1013.8 1015.9 



231 



110 



231 



35 



0.9 



249 



1.2 



350 



Apr 



16.9 



13.9 



1018.7 1014.4 



98 



93 



182 







1.7 



198 



0.2 



308 



May 



17.7 



18.6 



1014.6 1015.7 



159 



76 



239 



20 



1.7 







0.2 



153 



Jin 



24.7 



23.7 



1014.8 1015.1 



90 



88 



136 



27 



2.7 



183 



1.1 



189 



Jul 



27.0 



26.5 



1017.1 1015.9 



75 



97 



275 



19 



4.0 



203 



2.1 



208 



Aug 



24.2 



25.5 



1017.6 1016.3 



191 



110 



253 



30 



0.5 



208 



0.5 



106 



Sep 



21.9 



22.8 



1016.1 1017.6 



136 



81 



226 



5 



1.1 



8 



1.8 



39 



Oct 



17.3 



17.9 



1016.1 1018.6 



102 



75 



143 



17 



4.2 



23 



2.4 



26 



Nov 



14.8 



13.6 



1017.9 1018.4 



129 



90 



145 



26 



2.1 



346 



1.7 



347 



Dec 



10.7 



8.2 



1019.8 1019.2 



109 



68 



131 



4 



4.9 



359 



2.4 



331 



Average 16.2 



16.1 



1017.5 1016.8 



132 



89 







0.8 



331 



0.8 



351 



Total 









1587 



1071 















Chapter 2 Meteorology 



