ML20010B601

Fog & Rime Ice Monitoring Program Summary for First & Second Quarter 1981.Maps Encl

ML20010B601
Person / Time
Site:	LaSalle
Issue date:	03/31/1981
From:	COMMONWEALTH EDISON CO.
To:
Shared Package
ML20010B600	List: ML20010B599 ML20010B601
References
NUDOCS 8108170312
Download: ML20010B601 (4)

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Fog and Rime Ice Monitoring Program Summary

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3eq LaSalle County Cencrating Station P,8 7

o Incidence of Fog / Rime Ice, Formation Ub First Quarter, 1981 oo

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og g Days of Observations y

tNo-EU j

I Fog / Rime Ice Visibility in Feet (less than Dburvations Wind 1/4 mile) at Observation Points Date Time Direction 1

2 3

4 5

6 7

8 9

Remarks 1-14 7:00a 297 Light Fog 1-21 7:00a 350 Fog over entire ares 2-03 7:15a 261 Ice near discharge area *'

2-04 7:05a 306" Ice neat discharge area

• 2-17 7:00a 205 Fog di'nsity 4t '0 to 60(

feet ir all dit 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 tog; drizzle 3-10 7:10a 315 Light Fog O Denotes Fog Formation Downwind of Cooling Pond Oba.Pt.

Dir. Span Obs.Pt.

Dir. Span Obs.Pt.

Dir. Span

• • Rime ice on station site only: see r m rse s e r exact ca d on.

1 3050- 0?O 4

900-1610 0

7 197 -339o 2

270- 850 5

0 90 -240 8

278 -351 3

650-1120 6

1880-262 9

286 - 67*

I (See Map on Reverse Side)

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Fog and aime Ice Monitoring Progren Summary LoSalle County Generating Station Incidence of Fog / Rime Ice Formation Second Quarter, 1981 61 Days of Observations Fog / Rime Ice Visibility in Feet (less than Obrsrvations Wind 1/4 mile) at Observation Points D+te Time Direction 1

2 3

4 5

6 7

8 9

Pemarks 4/13 7:05a 131 Light fog 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 6/09 4:11p 65 Light fog 6/10 7:16a 62 Light haze 6/12 7:20a 216 Fog i

• Denotes Fog Formation Downwind of Cooling Pond Obs.Pt.

Dir Span Obs.Pt.

Dir. Span Obs.Pt.

Dir. Span 1

3050- 820 4

900-1610 7

197 -3390 0

0 2

270- 850 5

90 -240 8

278 -351 3

650-112 6

1880-262" 9

286 - 67 (See Map on Reverse Side)

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