ML20040G336

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Fog & Rime Ice Monitoring Program summary,1981
ML20040G336
Person / Time
Site: LaSalle  Constellation icon.png
Issue date: 02/08/1982
From:
COMMONWEALTH EDISON CO.
To:
Shared Package
ML20040G335 List:
References
NUDOCS 8202120181
Download: ML20040G336 (11)
v • d • e


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8202120181 820200 Attachment 1 PDR ADOCK 05000373 R PDR '

Fog and Rime len Monitoring Progrrm Summary LaSalle County Generating Station Incidence of Fog / Rime Ice Formation 248 Days of Observations During 1981 Fog / Rime Ice Visibility in Feet (less than

__Ob~rvations Wind 1/4 mile) at Observation Points Date Time Direction 1 2 3 4 5 6 7 8 9 Remarks 2-17 7:00p 205 Fon Density 400-600 feet in all dirt erions 2-18 7:15a 220 1200 1200 800 800 600* 800* 1000* 1100 800 Foe over entire aren 2-27 7:15a 12 6 Tce over n11 n r en n 4-30 7:15a 135 1000 800 1000* 1000 800 Ra in . drizzle 8-21 7:12a 72 1200* 1000* Fo c 9-14 7:05a 280 200 200 225 250 250 250 250* 250* 250 Foc _ _

10-05 7:05a 90 600 600 600* 600* 600 600 800 600 600 1 0- 08 7 : 08a 10 350* 350* 350 400 200 150 200 250 300*

10-15 6:45a 235 1200 1200 1000 1000 800* 600* 800 1200 1200 H ea vy fon over enttre are; 10-16 6:4 5a 230 1200 1200 1200 1200 1000* 300* 1000 1200 1200 Fon over entire area

  • 11-04 7:12a 99 800 600 500 400* 400* 400 600 600 800 11-16 7:05a 250 800 800 800 600 600* 600* 800 800 800 Rime ice at Stations 3-9; 12-29 7:00a 275 <1" <1" <1" < 1" <1" <1" < 1" Light fon over aren '

0 Denotes Fog Formation Downwind of Cooling Pond Obs.Pt. Dir. Span Obs.Pt. Dir. Span Obs.Pt. Dir. Span 1 3050- 820 4 900-161 7 197 -339 2 270- 850 5 90 -240 8 278 -351 3 65 -112 6 188o-262 9 286 - 67 i (Sie Map on Reverse Side)

Attachment 2 '

Page 1 of 2 ,

Fog and Rime Ice Monitoring Program Summary LaSalle County Generating Station Incidence of Fog / Rime Ice Formation Fmtreh Quarter , 1981 62 Days of Observations Fog / Rime Ice Visibility in Feet (less than

_0bnervations Wind 1/4 mile) at Observation Points Date Time Direction .

1 2 3 4 5 6 7 8 9 Remarks 10-05 7:05a 90 600 600 600* 600* 600 600 800 600 600 1 0- 08 7:08a 10 350* 350* 350 400 200 150 200 250 300*

10-15 6:45a 235 1200 1200 1000 1000 800* 600* 800 1200- 1200 Heavy Fog over entire aret 10-16 6:45a 210 1700 1200 1200 1900 innn* Ann

  • 1000 1700 1?nn Foc over ent ire aren 11-02 6:55a 90 Fog; Haze 11-03 4:10p 117 '

Haze 11-04 7:12a 99 800 600 500 400* 400* 400 600 600 800 11-16 7:05a 250 800 800 800 600 600* 600* 800 800 800 11-18 7:20a 124 Fog 11-23 4 :10p 115 Fog 11-30 7:12a 112 Light Fog 12-04 7:15a 324 Light Haze 12-21 4:00p 225 Ha z e, Light Fog

  • Denotes Fog Formation Downwit.d of Cooling Pond Obs.Pt. Dir. Span Obs.Pt. Dir. Span Obs.Pt. Dir Span 1 3050- 820 4 900-161 7 197 -339 2 270- 850 5 90 -2400 8 278 -351 3 650-112 6 1880-262 9 286 - 67 (Sre Map on Reverse Side)

Page 2 of 2 ,

Fog and Rime Ica Monitoring Progrcm Summary LaSalle County Generating Station Incidence of Fog / Rime Ice Formation Fourth Quarter, 1981 l

62 Days of Observations Fog / Rime Ice Visibility in Feet (less than Obr +rvations Wind 1/4 mile) at Observation Points Date Time Direction 1 2 3 4 5 6 7 8 9 Remarks 12-29 7:00a 275 < 1" <: 1" <C 1" <C 1" <! 1" <[ 1 " <C 1" Rime Ice at stations 3-9, Light Fog over area 12-30 7:00a 189 Light Fog __,

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  • Denotes Fog Formation Downwind of Cooling Pond  ;

Obs.Pt. Dir. Span Obs.Pt. Dir. Span Dir. Span Obs.Pt.

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1 3050- 820 900-161 197 -339 2 270- 850 4

5 90 -2400 7

8 278 -351 lI 3 650-112 6 188 -262 9 286 - 67 l~

(Ste Map on Reverse Side) l

Fog and Rime Ics Monitoring Progrcm Summary '

LaSalle County Generating Station .

Incidence of Fog / Rime Ice, Formation .

First Quarter, 198_1 61 Days of Observations i

Fcg/ Rime Ice Visibility in Feet (less than Ob-crvations Wind 1/4 mile) at Observation Points D'tn Time Direction i 2 3 4 5 6 7 8 9 Remarks 1-14 7:00a 297 Light Fog 1-21 7:00a 350 Fog over entire area 2-03 7:15a 261 Ice near discharge area *C 2-04 7:05a 306 Ice near discharge area *"

2-17 7:00a 205 Fog density 4( 'O to 60( feet it all dir ections Fog over entire area 2-18 7:15a 220 1200 1200 800 800 600* 800* 1000* 1100 800 Fog over entire area 2-19 7:15a 225 Light Fog 2-27 7:15a 126 ice over all areas 3-04 4:06p 62 Light fog; drizzle 3-10 7:10a 315 Light Fog ,

O Den:tes Fog Formation Downwind of Cooling Pond '

Ob 7. P t .- Dir. Span Obs.Pt. Dir. Span Obs.Pt. Dir. Span ** Rime ice on station site only: see 1 3050- 820 4 900-1610 7 197 -3390 i 270- 850 0 2 5 90 -240 8 278 -351 <

3 650-112" 6 1880-262 9 286 - 67 f

(Sea Map on Reverse Side)

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Fog cnd Rime Ice Monitoring Program Summary LaSalle County Generating Station .

Incidence of Fog / Rime Ice Formation ,

Second Quarter, 1981 61 Days of Observations Fcg/ Rime Ice Visibility in Feet (less than Dburvations Wind 1/4 mile) at Observation Points 1 D,tn Time Direction 1 2 3 4 5 6 7 8 9 Recarka :l 4/13 7:05a 131 Linht fon 4/22 4:03p 190 Light fog 4/30 7:15a 135 1000 800 1000* 1000 800 Rain: drizzle 5/20 4:15p _.283 Light haze 5/21 7:10a 301 Light haze 5/22 7:10a 193 Light haze 5/28 6:55a 65 Light haze 6/03 6:30a 62 Light haze )

l 6/09 4:11p 65 Light fog -

6/10 7:16a 62 Light haze -

'i 6/12 7:20a 216 Fog  !

i t ,

0 Den::tes Fog Formation Downwind of Cooling Pond Ob% Pt. Dir. Span Obs.Pt. Dir. Span Obs.Pt. Dir. Span 1 3050- 820 4 900-1610 7 197 -3390  :

2 270- 850 5 900-240 8 278 -351

3 650-112 6 1880-262 9 286 - 67 ii e>

(Sea Map on Reverne Side) .

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Fog and Rime I,ce Monitoring Program Surunary Page 1 of 2 LaSalle County Generating Station

  • Incidence of Fog / Rime Ice Formation Th i r,i Quarter, 1981 64 Days of Observations Fog / Rise Ice Visibility in Feet (less than Observations Wind 1/4 mile) at Observation Points Date Time Direction 1 2 3 4 5 6 7 8 9 Remarks 7-02 6:55a 60" Light fog / haze 7-16 7:14a 27 Light fog 7-16 4:05p 351" Light fog 7-17 7:25a 72 Fog 7-20 7:13a 288 Fog / Rain 7-24 7:15a 110" Fog H-06 7:25a 315 Fog / Drizzle 8-20 6: 55a 63 Light Fog 8-21 7:12a 72" I200* 1000* Fog 9-01 7:09.i 189" Light Fog 9-01 5:15p 133" Light Fog 4-02 7:10a 27" Light Fog 9-94 7:14a 342" Light Fog 0 Denotes Fog Formation Downwind of Cooling Pond Obn.Pt. Dir. Span Obs.Pt. Dir. Span Obs.Pt. Dir. Span 1 1050- 82 0 4 900-161 7 197 -3390 2 270- 850 5 900-2400 8 2780 -351 3 65"-112 6 1880-262 9 286 - 67 (See Map on Reverse Side) .

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s Fog and Rime Ice Monitoring Program Summary

  • LaSalle County Generating Station Page 2 of 2 ,

Incidence of Fog / Rime Ice Formation Third Quarter, 1981 64 Days of Observations Fog / Rime Ice Visibility in Feet (less than Observations Wind 1/4 mile) at Observation Points

__Date Time Direction 1 2 3 4 5 6 7 8 9 Remarks 9-14 7:05a 280" 200 200 225 250 250 250 250* 250* 250 Fog .

O Denotes Fog Formation Downwind of Cooling Pond Ob9.Pt. Dir. Span Obs.Pt. Dir. Span Obs.Pt. Dir. Span -

1 305"- 82" 4 900-161 7 197 -339 2 27o- 85 5 90 -240 8 278 -351 3 65"-112 6 1880-262 9 286 - 67 (See Map on Feverne Side)

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