Trying to understand a log message?

We have had two of our cyclones reboot them selves. We were having heavy rains at the time this is the first time they rebooted. this is one of the log files. any help decodeing it would be greatly apriciated
17:21:54 UT : 03/19/06 : File
C:/ISIPPC/pssppc.250/bsps/devices/whisp/syslog.c : Line 918 System Reset
Exception – External Hard Reset WatchDog Cur ExtInt 188 Max ExtInt 837 Cur
DecInt 43 Max DecInt 33 Cur Sync 0 Max Sync 35 Cur LED 0 Max LED 1 Cur
EthXcvr 0 Max EthXcvr 1 Cur FEC 43 Max FEC 409 Cur FPGA 58 Max FPGA 479 Cur
FrmLoc 98 Max FrmLoc 133 AAState 0
17:21:54 UT : 03/19/06 : File root.c : Line 941 System Startup
17:21:54 UT : 03/19/06 : File root.c : Line 946 Software Version : CANOPY
7.3.6 Oct