FORECAST
TODAY
19/12
18/12
17/12
ARCHIVE
FIRE DANGER
FIRE BEHAVIOUR
FUEL MOISTURE
WEATHER
RAW DATA
Fire Weather Report
FIRE DANGER CLASS
FIRE WEATHER INDICES
WEATHER OBSERVATIONS
North Island Data
Northland
Saturday, 19 December 2009
STATION NAME
FOREST
SCRUB
GRASS
FFMC
DMC
DC
ISI
BUI
FWI
TEMP
RH
DIR
WSP
RN24
GC%
STAT
Aupouri Peninsula
H
E
H
87
54
338
7.6
77
22.9
20.0
61
268
21
0.0
90
Aut
Waitangi Forest
E
E
V
89
79
324
11.8
98
34.9
23.5
47
233
24
0.0
80
Aut
Opouteke
M
E
H
87
19
247
6.4
32
12.6
22.3
55
296
16
0.0
80
Sub
Hokianga
V
E
H
88
48
315
9.0
70
24.5
21.8
54
237
20
0.0
80
Aut
Dargaville
M
E
H
87
26
293
6.0
42
14.0
22.3
55
296
16
0.0
80
Aut
Kaipara
M
E
M
85
19
142
3.9
29
7.8
20.0
69
269
12
0.0
80
Aut
Kaikohe
M
E
M
86
28
328
5.9
46
14.4
21.0
66
230
17
0.0
65
Aut
Whangarei Aero
H
E
H
88
40
325
8.7
61
22.3
22.0
55
250
19
0.0
65
Aut
Mangakahia
H
E
H
88
44
334
6.6
66
19.0
24.0
53
230
14
0.0
80
Aut
Pouto
M
E
H
86
23
247
5.9
37
12.8
19.0
69
266
19
0.0
80
Aut
Auckland
Saturday, 19 December 2009
STATION NAME
FOREST
SCRUB
GRASS
FFMC
DMC
DC
ISI
BUI
FWI
TEMP
RH
DIR
WSP
RN24
GC%
STAT
Mahurangi Forest
M
E
L
85
12
160
5.6
20
8.7
19.0
72
231
19
0.0
40
Aut
Woodhill
M
E
M
86
14
167
3.7
23
6.5
22.3
66
227
9
0.0
65
Aut
Clevedon Coast
M
E
M
87
19
184
6.0
30
11.6
22.1
54
244
15
0.0
60
Aut
Cornwallis Depot
M
E
M
86
21
170
4.5
32
9.5
21.3
63
237
11
0.0
60
Aut
Great Barrier Island
H
E
M
89
26
171
7.9
38
16.3
23.2
55
229
17
0.0
60
Aut
Hunua East
M
E
M
86
24
146
4.1
34
9.1
21.7
59
242
10
0.0
60
Aut
Waikato
Saturday, 19 December 2009
STATION NAME
FOREST
SCRUB
GRASS
FFMC
DMC
DC
ISI
BUI
FWI
TEMP
RH
DIR
WSP
RN24
GC%
STAT
Whangamata
M
E
M
88
23
97
5.1
29
9.8
23.3
54
214
10
0.0
65
Aut
Bodley Road
L
E
M
85
11
58
3.4
15
4.7
20.7
63
259
9
0.0
65
Aut
Port Taharoa
M
E
L
84
9
58
5.6
13
7.1
21.0
70
270
22
0.0
40
Aut
Paeroa
M
E
L
87
21
184
5.6
33
11.6
22.0
56
230
15
0.0
50
Aut
Hamilton Aero
M
E
M
87
24
104
7.2
30
13.4
21.0
61
240
19
0.0
60
Aut
Athol
M
E
H
87
14
73
6.3
19
9.5
20.1
55
65
18
0.0
65
Aut
Waihi Gold
M
E
H
86
19
90
7.9
25
13.0
20.2
61
249
24
0.0
65
Aut
Waikawau Bay
M
E
M
87
21
89
5.2
26
9.6
20.6
62
0
13
0.0
65
Aut
Central North Island
Saturday, 19 December 2009
STATION NAME
FOREST
SCRUB
GRASS
FFMC
DMC
DC
ISI
BUI
FWI
TEMP
RH
DIR
WSP
RN24
GC%
STAT
Whakatane Aero
H
E
L
88
21
222
9.3
34
17.3
25.0
46
320
20
0.0
50
Aut
Rotorua Aero
M
E
L
85
12
189
4.9
21
7.9
21.0
61
220
17
0.0
50
Aut
Taupo Aero
M
E
H
85
19
249
8.8
32
16.0
20.0
62
270
28
0.0
60
Aut
Tauranga Aero
V
E
H
88
32
206
17.8
46
31.6
24.0
53
250
35
0.0
60
Aut
Matea
M
E
L
89
17
148
8.4
26
14.0
21.2
55
224
18
0.0
50
Aut
Minginui
M
E
L
89
20
202
8.0
31
14.9
24.0
43
187
15
0.0
40
Aut
Rotoehu
E
E
L
90
38
318
19.5
59
37.9
24.1
45
213
30
0.0
45
Aut
Goudies
M
E
L
87
16
171
9.1
26
15.1
20.5
54
265
25
0.0
50
Aut
Galatea
V
E
H
92
40
266
10.4
58
24.7
26.9
36
157
13
0.0
60
Aut
Kawerau
H
E
H
90
38
238
10.6
54
24.0
26.7
39
150
17
0.0
60
Aut
Rotoaira
M
E
L
87
13
82
9.1
18
12.5
20.7
54
246
24
0.0
45
Sub
Tahorakuri
M
E
H
88
26
199
6.5
39
14.2
20.4
54
248
14
0.0
65
Aut
Hautu
M
E
L
87
15
90
9.4
21
13.7
20.7
54
246
24
0.0
45
Aut
Opotiki
M
E
M
84
17
221
4.0
28
7.9
22.5
61
20
14
0.0
55
Aut
Te Puke
V
E
H
88
29
208
17.5
43
30.5
24.0
53
250
35
0.0
60
Sub
Waihau Bay
L
E
L
81
7
102
3.2
12
3.8
21.0
74
310
19
0.0
50
Sub
Eastern North Island
Saturday, 19 December 2009
STATION NAME
FOREST
SCRUB
GRASS
FFMC
DMC
DC
ISI
BUI
FWI
TEMP
RH
DIR
WSP
RN24
GC%
STAT
Hicks Bay
L
E
L
81
7
153
3.4
12
4.0
21.0
74
310
19
0.0
50
Aut
Pouawa
M
E
M
85
48
234
4.1
64
13.0
19.0
57
246
12
0.0
70
Aut
Poroporo
M
E
L
87
26
182
5.3
38
11.9
21.5
56
310
14
0.0
50
Aut
Tuai
M
E
L
89
19
122
4.7
27
8.9
24.1
41
128
6
0.0
45
Aut
Crownthorpe
H
E
H
90
28
157
9.9
39
19.3
23.6
50
271
17
0.0
70
Aut
Kaiwaka
M
E
L
89
24
190
6.3
36
13.3
23.5
45
202
12
0.0
50
Sub
Waipukurau
H
E
H
89
33
216
10.5
47
22.4
23.2
46
216
22
0.0
60
Aut
Bridge Pa
H
E
H
91
51
214
7.8
64
21.2
26.4
35
250
10
0.0
75
Aut
Te Haroto
H
E
M
90
32
212
6.6
46
15.7
25.1
40
123
9
0.0
60
Aut
Gwavas
M
E
L
89
33
144
4.9
42
11.7
23.0
41
114
5
0.0
50
Aut
Waihau
M
E
M
88
19
129
5.2
28
9.9
23.3
49
212
10
0.0
60
Aut
Te Pohue
M
E
H
89
23
140
6.3
32
12.5
23.5
45
202
12
0.0
65
Aut
Ongaonga
M
E
M
89
33
202
5.6
47
14.1
24.5
44
181
8
0.0
60
Aut
Cricklewood
M
E
L
88
23
172
6.4
34
13.0
23.7
49
17
14
0.0
50
Aut
Gisborne Aero
M
E
H
86
34
227
6.0
49
15.1
22.0
58
150
17
0.0
70
Aut
Mahia
M
E
M
83
34
272
3.5
52
10.2
20.0
69
150
15
0.0
70
Aut
Napier Aero
M
E
M
83
19
178
4.1
29
8.3
20.0
71
60
19
0.0
75
Aut
Taranaki
Saturday, 19 December 2009
STATION NAME
FOREST
SCRUB
GRASS
FFMC
DMC
DC
ISI
BUI
FWI
TEMP
RH
DIR
WSP
RN24
GC%
STAT
New Plymouth Aero
L
E
L
81
5
48
3.7
8
3.5
20.0
87
300
22
0.0
40
Aut
Eltham
M
E
L
85
11
73
8.4
16
10.8
20.4
67
270
29
0.0
40
Aut
Waverly
M
E
L
83
9
52
8.3
12
9.5
20.9
75
287
32
0.0
40
Aut
Okato
L
E
L
82
7
48
4.3
10
4.8
19.5
84
267
21
0.0
40
Aut
Marco
L
E
L
85
12
40
3.2
14
4.1
19.2
70
275
10
0.0
40
Aut
Hawera
M
E
L
84
13
73
6.2
18
8.9
20.0
69
300
24
0.0
40
Aut
Wanganui-Manawatu
Saturday, 19 December 2009
STATION NAME
FOREST
SCRUB
GRASS
FFMC
DMC
DC
ISI
BUI
FWI
TEMP
RH
DIR
WSP
RN24
GC%
STAT
Three Kings
L
E
L
84
6
57
6.3
10
6.6
13.5
72
263
25
0.0
50
Aut
Webb
L
E
L
85
7
60
5.2
11
5.9
12.8
74
192
19
0.0
50
Aut
Westlawn
M
E
L
85
11
85
5.5
16
7.8
15.0
70
238
19
0.0
50
Aut
Desert Road Summit
M
E
L
86
13
85
7.3
19
10.7
15.0
70
221
23
0.0
50
Aut
Alfredton
L
V
L
78
13
83
1.3
19
1.6
14.1
88
303
8
0.8
40
Aut
Dannevirke
M
E
L
86
17
103
6.8
24
11.4
21.2
57
270
20
0.0
40
Aut
Waimarino Forest
L
E
L
83
8
31
2.4
9
2.2
17.5
71
4
8
0.0
30
Aut
National Park
L
V
L
80
5
37
1.6
7
0.8
15.2
76
283
6
0.0
30
Aut
Ngamatea
M
E
L
83
13
89
8.2
18
11.6
15.4
76
213
34
0.0
40
Aut
Waitarere Forest
M
E
L
85
16
98
4.0
23
7.0
20.5
74
310
13
0.0
40
Aut
Lismore
M
E
L
88
25
122
4.5
33
9.7
22.7
56
318
5
0.0
30
Aut
Waione
M
E
L
86
29
142
4.8
38
11.1
20.4
62
280
13
0.0
40
Aut
Tapuae
L
E
L
82
5
66
3.7
9
3.7
15.9
69
270
18
0.0
30
Aut
Raumai
L
V
L
84
13
99
2.1
20
3.2
20.1
75
292
4
0.0
40
Aut
Levin
M
E
L
82
12
71
4.3
17
6.2
18.0
85
300
22
0.0
40
Aut
Spriggins Park
M
E
L
84
18
119
4.4
26
8.1
19.3
77
263
17
0.0
30
Aut
Waiouru Aero
L
E
L
83
9
96
3.6
15
4.8
16.0
66
270
15
0.0
40
Aut
Wanganui Aero
M
E
L
84
13
99
5.9
20
9.1
19.0
79
280
24
0.0
30
Aut
Palmerston North Aero
M
E
L
85
13
84
9.1
19
12.6
21.0
72
290
30
0.0
40
Aut
Wairarapa
Saturday, 19 December 2009
STATION NAME
FOREST
SCRUB
GRASS
FFMC
DMC
DC
ISI
BUI
FWI
TEMP
RH
DIR
WSP
RN24
GC%
STAT
Ngawihi
E
E
L
89
29
206
25.3
43
38.9
23.0
53
0
39
0.0
40
Aut
Castle Point
V
E
L
85
20
145
51.6
29
51.6
21.0
63
40
63
0.0
40
Aut
Stony Creek
M
E
L
87
19
110
5.6
27
10.3
20.0
62
324
14
0.0
40
Aut
Haurangi
M
E
L
87
20
145
6.4
30
12.1
20.2
64
352
18
0.0
40
Aut
Holdsworth Station
M
E
L
85
22
78
3.8
26
7.1
17.9
77
48
12
0.0
40
Aut
Ngaumu
M
E
L
86
31
148
4.6
40
11.0
22.3
60
293
13
0.0
40
Aut
Masterton Aerodrome
M
E
L
86
21
127
5.4
30
10.6
20.0
68
350
15
0.0
40
Aut
Wellington
Saturday, 19 December 2009
STATION NAME
FOREST
SCRUB
GRASS
FFMC
DMC
DC
ISI
BUI
FWI
TEMP
RH
DIR
WSP
RN24
GC%
STAT
Rimutaka Forest Park
M
E
L
85
18
149
5.0
28
9.5
19.9
72
27
17
0.0
40
Aut
Belmont
L
E
L
83
6
73
2.9
9
2.8
18.0
67
40
11
0.0
40
Sub
Titahi Bay
M
E
L
81
11
172
3.7
18
5.7
17.0
87
336
21
0.0
40
Aut
Chatham Island
L
E
L
76
6
167
3.3
10
3.6
16.0
86
320
28
0.0
30
Aut
Wellington Aero
M
E
L
84
15
170
11.2
24
16.9
19.0
79
10
37
0.0
40
Aut
Lower Hutt
M
E
L
86
22
88
4.5
27
8.6
18.0
67
40
11
0.0
40
Aut
Paraparaumu
L
E
L
82
8
72
3.0
12
3.5
18.0
84
330
15
0.0
40
Aut
South Island Data
Nelson-Marlborough
Saturday, 19 December 2009
STATION NAME
FOREST
SCRUB
GRASS
FFMC
DMC
DC
ISI
BUI
FWI
TEMP
RH
DIR
WSP
RN24
GC%
STAT
Opua Bay
M
E
L
86
25
121
4.0
33
8.6
19.6
68
317
9
0.0
30
Aut
Keneperu Head
M
E
L
86
18
79
3.9
23
7.0
19.6
68
317
9
0.0
30
Sub
Totaranui
M
E
L
86
15
80
6.3
20
9.8
21.1
72
307
21
0.0
20
Aut
Awatere Valley
V
E
H
89
37
289
13.2
56
28.7
22.2
57
312
26
0.0
70
Aut
Hira
M
E
L
86
20
197
3.0
32
6.6
19.6
71
347
5
0.0
20
Aut
Dovedale
L
V
L
81
18
183
1.9
29
3.9
18.4
92
70
9
0.0
20
Sub
Rai Valley
M
E
L
85
14
93
3.0
21
5.0
18.6
77
300
8
0.0
30
Aut
Molesworth
H
E
H
91
39
248
9.1
55
21.9
21.3
45
349
12
0.0
60
Aut
Murchison
L
L
L
33
5
21
0.0
6
0.0
17.2
89
107
7
11.8
20
Aut
Ngaruru
L
E
M
85
12
124
3.0
19
4.7
22.2
65
298
7
0.0
70
Aut
Western Boundary
L
E
L
83
11
76
2.4
16
3.2
17.5
84
17
8
0.0
20
Aut
Kaikoura
M
E
L
83
17
240
3.2
29
6.7
16.0
82
180
13
0.0
30
Aut
Nelson Aero
M
E
L
84
17
234
6.6
28
12.0
20.0
79
20
26
0.0
20
Aut
Woodbourne Aero
E
E
V
88
41
221
18.0
56
35.0
22.0
58
320
33
0.0
70
Aut
Big Pokororo
L
V
L
80
10
102
1.8
16
2.3
18.4
92
70
9
0.0
20
Aut
St Arnaud
L
L
L
39
5
17
0.0
5
0.0
14.7
87
143
6
6.8
20
Aut
Cape Campbell
H
E
V
84
16
327
18.1
28
25.5
18.0
77
350
46
0.0
70
Aut
Onamalutu
V
E
H
88
28
180
18.0
40
30.0
22.0
58
320
33
0.0
55
Sub
West Coast
Saturday, 19 December 2009
STATION NAME
FOREST
SCRUB
GRASS
FFMC
DMC
DC
ISI
BUI
FWI
TEMP
RH
DIR
WSP
RN24
GC%
STAT
Nelson Creek
L
L
L
46
3
14
0.2
4
0.1
18.2
88
25
14
5.2
50
Sub
Reefton
L
L
L
47
4
29
0.2
6
0.1
18.2
88
25
14
5.2
30
Aut
Westport
L
L
L
17
1
6
0.0
2
0.0
16.0
98
30
22
19.4
30
Aut
Haast
15.0
20
6
46.6
30
Aut
Hokitika Aero
L
L
L
11
2
6
0.0
2
0.0
16.0
100
10
17
27.0
30
Aut
Canterbury
Saturday, 19 December 2009
STATION NAME
FOREST
SCRUB
GRASS
FFMC
DMC
DC
ISI
BUI
FWI
TEMP
RH
DIR
WSP
RN24
GC%
STAT
Timaru Aero
L
H
M
70
14
214
0.9
23
0.9
13.0
77
80
7
1.8
60
Aut
Waihaorunga
M
E
M
83
25
419
4.4
44
11.0
11.9
79
30
21
0.8
60
Sub
Lees Valley
L
H
L
61
16
197
1.1
26
1.6
16.7
79
14
18
3.8
50
Aut
Motukarara
V
E
H
89
36
349
11.1
57
25.6
17.1
56
31
23
0.0
70
Aut
Mount Somers
L
L
L
57
12
128
0.6
19
0.5
11.5
90
77
12
2.8
30
Aut
Pukaki Aero
M
E
M
89
30
352
4.6
49
12.4
18.2
54
250
6
0.0
65
Aut
Mount Cook
L
L
L
25
4
6
0.0
4
0.0
13.7
89
123
9
56.0
60
Aut
Burnham
H
E
L
89
27
274
6.9
44
15.8
18.8
56
60
13
0.0
30
Aut
Tekapo
M
E
H
88
22
255
6.6
36
13.8
16.8
60
173
15
0.2
65
Aut
Hakatere
L
H
M
77
44
291
1.2
63
4.1
16.2
64
291
6
1.6
65
Aut
Leeston
M
E
L
88
27
312
4.3
45
11.0
18.4
64
105
6
0.0
30
Aut
Le Bons Bay
M
E
L
84
14
239
2.9
24
5.3
14.0
82
110
9
0.2
50
Aut
Christchurch Aero
M
E
L
87
24
253
7.4
39
15.7
18.0
69
60
20
0.0
50
Aut
Hanmer
M
E
L
85
24
161
2.7
35
6.3
18.3
78
260
4
0.0
30
Aut
Cannington
M
E
M
83
19
322
4.4
32
9.3
11.9
79
30
21
0.8
60
Aut
Snowdon
M
E
L
82
15
144
3.2
24
5.7
13.6
82
70
15
0.6
50
Aut
Darfield
M
E
L
86
29
235
4.1
44
10.6
17.2
70
54
10
0.4
30
Aut
Bottle Lake
M
E
L
88
32
353
5.5
52
14.6
18.5
62
84
11
0.0
50
Aut
Ashley
L
H
L
70
13
59
0.9
17
0.8
18.6
69
61
8
2.6
20
Aut
Balmoral
M
E
L
86
27
267
3.3
43
8.6
18.4
77
69
7
0.0
30
Aut
Ashburton Plains
M
E
L
86
34
373
3.3
55
10.0
14.7
75
48
7
0.0
40
Aut
Oxford
L
H
L
73
20
194
1.0
32
1.9
15.8
77
65
9
1.8
20
Aut
Otago
Saturday, 19 December 2009
STATION NAME
FOREST
SCRUB
GRASS
FFMC
DMC
DC
ISI
BUI
FWI
TEMP
RH
DIR
WSP
RN24
GC%
STAT
Cromwell
V
E
H
91
58
579
7.5
92
24.8
22.2
41
159
8
0.4
85
Aut
Naseby Forest
L
H
M
71
21
324
0.9
36
1.8
14.9
67
123
7
2.2
65
Aut
Butchers Dam
H
E
H
89
56
607
6.2
91
21.7
17.9
52
1
10
0.0
80
Aut
Cherry Farm
M
E
M
81
22
317
5.0
37
11.2
15.2
62
55
28
1.4
60
Aut
Dansey Pass
H
E
H
83
30
458
6.1
51
15.6
17.2
60
4
27
1.2
70
Aut
Tapanui
L
H
M
63
8
277
0.8
15
0.6
18.6
67
218
10
4.4
60
Aut
Glenledi
M
E
L
79
17
240
2.5
28
5.1
16.5
69
42
18
1.4
40
Aut
Rock and Pillar
L
H
M
71
39
450
0.9
64
3.0
18.2
55
88
6
3.0
70
Aut
Dunedin Aero
M
E
M
80
28
402
2.4
48
7.0
18.0
66
50
15
1.4
65
Aut
Deep Stream
L
E
M
71
6
126
3.6
11
4.0
9.4
93
39
34
1.4
65
Aut
Oamaru Aero
M
V
L
75
16
415
2.1
29
4.3
15.0
73
50
20
1.8
40
Aut
Queenstown Aero
L
H
M
65
13
237
0.9
22
0.9
17.0
56
250
11
5.2
65
Aut
Tara Hills
M
E
M
88
30
306
4.1
48
11.1
18.0
62
90
6
0.0
65
Aut
McRaes
M
E
M
66
28
330
2.2
46
6.2
12.2
75
53
27
3.0
70
Aut
Herbert
L
L
M
60
9
169
1.2
15
1.0
9.0
46
347
22
7.0
55
Aut
Oamaru
L
L
L
51
9
277
0.3
17
0.3
14.0
75
70
13
7.4
50
Aut
Lauder
H
E
M
89
124
683
4.9
171
23.4
18.2
55
244
6
0.0
70
Aut
Windsor
L
H
L
64
14
331
1.0
25
1.3
15.5
68
346
14
4.0
50
Aut
Ranfurly
H
E
H
89
55
510
6.4
86
21.6
18.8
50
108
10
0.0
75
Aut
Glendhu
L
L
L
52
4
120
0.3
8
0.2
15.1
69
87
7
6.8
60
Aut
Clyde
H
E
M
89
56
608
4.3
91
16.5
19.1
57
147
4
0.0
75
Aut
Nugget Point
M
E
L
84
8
245
9.1
15
11.4
15.0
77
40
33
0.6
40
Aut
Wanaka
H
E
H
89
33
302
7.2
51
17.7
20.0
53
350
13
0.2
70
Aut
Traquair
M
E
M
80
19
313
2.4
33
5.4
18.0
66
50
15
1.4
65
Sub
Southland
Saturday, 19 December 2009
STATION NAME
FOREST
SCRUB
GRASS
FFMC
DMC
DC
ISI
BUI
FWI
TEMP
RH
DIR
WSP
RN24
GC%
STAT
Gore
L
H
L
66
5
132
0.8
9
0.5
17.0
62
60
9
3.6
55
Aut
Invercargill Aero
L
L
L
58
3
35
0.5
5
0.2
17.0
66
350
6
4.4
50
Aut
Secretary Island
L
L
L
39
1
6
0.1
1
0.0
14.0
71
30
22
21.0
40
Aut
South West Cape
L
L
L
56
1
66
1.5
2
0.5
14.0
71
350
33
5.6
40
Aut
Garston
L
L
L
52
10
255
0.3
18
0.2
17.0
53
216
4
11.2
65
Aut
Lumsden
L
L
L
38
3
160
0.0
7
0.0
17.0
71
150
2
16.2
60
Aut
Manapouri Aero
L
L
L
44
4
27
0.1
6
0.0
17.0
55
340
4
15.6
50
Aut
Barn Hill
L
V
M
63
6
144
1.9
11
1.6
17.6
55
339
27
14.4
60
Aut
Blackmount
L
L
L
58
6
70
1.0
10
0.6
16.1
54
4
21
17.0
50
Aut
Wreys Bush
L
L
L
54
8
247
0.4
14
0.3
16.1
67
189
7
6.0
55
Aut
Tuatapere
L
L
L
51
4
95
0.2
8
0.1
17.4
58
331
3
8.8
50
Aut
Slopedown
L
H
L
62
4
18
0.9
5
0.4
17.9
59
33
13
6.2
50
Aut
Aut :
Authentic data collected from the weather station
Sub :
Authentic data not available so data from one of three designated substitutes is used
Est :
An estimate of the values for a station has been made
For :
Forecast values have been entered for a station and not overwritten by authentic data
Copyright c 2002 National Rural Fire Authority | site optimised for
Microsoft's IE 5
& above.
Created on Sunday, 20 December 2009 at 2:00 am
Understanding the FWI System