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Current Weather
  • 85o F Feels Like 96o F
  • 24 Hr Rainfall Accumulation 0 mm
  • Wind Speed 3 knots
  • Wind Direction SE
  • Humidity 77%
  • Pressure 1014.8 millibars
Today's Forecast As of 15 May 2025 9:54 AM
Sunny
Morning
Sunny
Min 79o F | Max 89o F
  • Sunny
    Afternoon
    Sunny
    Min 79o F | Max 89o F
  • Sunny
    Evening
    Sunny
    Min 79o F | Max 89o F
  • Sunny
    Night
    Sunny
    Min 79o F | Max 89o F
05:51 18:52
  • East at 5 to 10 knots.

  • Smooth with a wave height of fewer than 2 feet.

Table 6

Table 6: Preliminary forecast evaluation (heterogeneous sample) for Hurricane Ivan, 9-14 August 2004.

Forecast errors (n mi) are followed by the number of forecasts in parentheses. Errors smaller than the NHC official forecasts are shown in bold-face type. Verification includes the depression stage.

Forecast Technique

Period (hours)

12

24

36

48

72

96

120

CLP5

25 (62)

51 (60)

86 (58)

121 (55)

175 (51)

229 (47)

296 (44)

GFNI

27 (57)

57 (55)

95 (55)

134 (53)

219 (49)

325 (45)

443 (41)

GFDI

28 (60)

52 (58)

77 (57)

94 (55)

147 (51)

204 (47)

261 (43)

GFDL

29 (61)

52 (59)

76 (57)

92 (56)

136 (52)

195 (48)

252 (44)

GFDN

29 (56)

51 (54)

79 (53)

118 (53)

198 (49)

298 (45)

412 (41)

GFSI

29 (60)

55 (58)

79 (57)

100 (55)

154 (51)

212 (47)

285 (43)

GFSO

32 (63)

56 (61)

80 (58)

99 (56)

147 (52)

198 (48)

268 (43)

AEMI

27 (60)

49 (58)

73 (57)

95 (55)

151 (51)

203 (47)

252 (43)

NGPI

26 (59)

54 (57)

86 (56)

119 (54)

200 (50)

304 (46)

449 (42)

NGPS

29 (61)

52 (59)

82 (56)

109 (54)

186 (50)

278 (46)

413 (42)

UKMI

24 (58)

47 (56)

72 (55)

92 (53)

147 (49)

214 (45)

286 (41)

UKM

26 (30)

44 (29)

66 (28)

87 (28)

133 (26)

189 (24)

279 (22)

A98E

27 (61)

43 (59)

72 (57)

103 (55)

179 (51)

248 (47)

349 (44)

A9UK

27 (28)

43 (27)

71 (26)

95 (25)

149 (23)

 

 

BAMD

31 (61)

54 (59)

78 (57)

96 (55)

147 (51)

219 (47)

300 (44)

BAMM

32 (61)

53 (59)

86 (57)

116 (55)

172 (51)

214 (47)

283 (44)

BAMS

48 (61)

93 (59)

142 (57)

179 (55)

236 (51)

251 (47)

286 (44)

CONU

22 (60)

47 (58)

74 (57)

97 (55)

154 (51)

224 (47)

307 (43)

GUNA

22 (58)

45 (56)

71 (55)

92 (53)

147 (49)

213 (45)

289 (41)

FSSE

21 (53)

38 (51)

58 (51)

81 (51)

126 (47)

171 (43)

199 (38)

OFCL

24 (63)

47 (61)

79 (59)

108 (56)

161 (52)

222 (48)

289 (44)

NHC Official, 1994 - 2003 mean (number of cases)

44 (3172)

78 (2894)

112 (2636)

146 (2368)

217 (1929)

248 (421)

319 (341)