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File: aaccz_05.txt196, SUPER 196 TO 201 SUB 402 TO 500 RIYADH VT: 15/11Z SFC TO SFC RADAR: NORMAL RANGES AT ALL FREQUENCIES SFC TO AIR RADAR: NORMAL RANGES AT ALL ALTITUDES SEC TO AIR RADAR: EXTENDED RANGES 078 TO 082, POSS HOLES ABV SFC REFRACTIVITY: 291 M UNITS REFRACTIVE CONDITION: SUB 037 TO 042 TRAP 079 TO 082 SUPER 082 TO 084 USS MIDWAY VT: 15/06Z SEC TO SFC RADAR: EXTENDED RANGES ABV 1GHZ SFC TO AIR RADAR: NORMAL RANGES AT ALL ALTITUDES SFC REFRACTIVITY: 327 M UNITS REFRACTIVE CONDITION: SUPER 040 TO 045, TRAP 045 TO 046, SUB 094 TO 104 5. (U) PART E: HFUS KGWC HF PROPAGATION BULLETIN HFUS2 KGWC 151744 JOINT USAF/NOAA BULLETIN PREPARED AT SPACE ENVIRONMENTAL SUPPORT BRANCH AIR FORCE GLOBAL WEATHER CENTRAL. SECONDARY HF RADIO PROPAGATION REPORT ISSUED AT 151800Z JAN 91. PART I. SUMMARY 151200Z TO 1518002 JAN 91/ FORECAST 1518002 TO 152400Z JAN 91. QUADRANT I II III IV 0 TO 90W 90K TO 180 180 TO 90E 90F TO 0 REGION POLAR N4 N5 N5 N5/P30 AURORAL N5 NS N4 N4/M30 MIDDLE N7 N7 N6 N7 LOW N8 N8 N7 N8/M20 EQUATORIAL N8 N8 N7 N8 REMARKS: THE GEOMAGNETIC FIELD IS QUIET AND SOLAR ACTIVITY IS LOW. EXPECT LITTLE DEGRADATION FROM THE SOLAR ENVIRONMENT 6. (U) PART F: CHEMICAL DOWNWIND MESSAGE SUBJECT: FORECAST SUPPORT FCST TRANSMIT TIME: 1800Z 15 JAN 91 POINT L W 120018 510500 POINT P W 150020 416600 X 120014 509500 X 150014 514600 Y 120008 608600 Y 140012 513700 R 110006 607700 R 140010 612700 S 110006 606700 S 130010 611?00 T 100012 507600 T 130012 512700 POINT M W 150020 511500 POINT Q W 330016 512500 X 150015 510500 X 330014 511500 Y 150010 609600 Y 340010 609600 R 140008 608700 R 340008 608600 S 140008 608700 S 350008 607600 T 130012 509600 T 350012 509500 POINT N W 190022 423300 POINT R W 140020 420600 X 190016 422400 X 140014 519600 Y 180014 521400 Y 130012 516700
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