Decrypting wind reports

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Date: Sun, 9 Apr 2000 07:43:36 +0200 (MET DST)
From: Philippe Hanrigou <phanrigo@messel.emse.fr-DeleteThis>
Message-Id: <200004090543.HAA24960@messel.emse.fr-DeleteThis>
Subject: Decrypting wind reports
Content-Type: text
Apparently-To: wind_talk@opus.hpl.hp.com-DeleteThis

Hi,

I am new to the Bay Area. I have just subscribed to these wind reports
(that's great, thanks for enabling this!), but I still have problem to
associate a place with corresponding nicknames. ;o) I understand
GG_Bridge, Monterey or Palo_Alto but get stuck with those like
Buoy23PtCn, NatBridges, Pigeon_Pt or Oak_850mb :o(

Is there a place where I can find more information about these
nicknames?

The problem is probably that I do not know the local windsurfing spots
yet. I have found Crissy Field, Olympic Circle, Alameda, Candlestick,
Coyote Point, Larkspur landing, The Delta, Waddell Creek, Stinson Beach,
Tomales Bay and Bodega Bay on the net, but that's all I know.

Here starts the tricky part for me: associating wind reports with the
relevant data:

Crissy Point -> GG_Bridge
Olympic Circle -> ?
Alameda Beach -> ?
Candlestick Park
Coyote Point -> ?
Larkspur Landing -> ?
The Delta -> ?
Waddell Creek -> ?
Stinson Beach -> ?
Bodega Bay -> ?

Could you also tell me which entries in this reports are relevant to Bay
Area windsurfing (I would consider Lake_Tahoe for example to be out of
my "windsurfing" range).

Sorry to bother you with that, but I really want to find a good spot
tomorrow and enjoy sailing again, apparently there was some gusts today!

Thanks in advance,
Philippe.

Ken Poulton wrote:
>
> # Mailing threshold: 15 knots
>
> Subject: Wind report
>
> To unsubscribe, send mail to listserv@opus.hpl.hp.com-DeleteThis with the
> contents "unsubscribe wind_afternoon" (or "wind_thresh", see
> this message's "To:" line). For more info about these lists,
> the data and listserv, send "info wind_afternoon".
>
> This report is available on the web at
> http://www.hpl.hp.com/personal/Ken_Poulton/windsurf.html
>
> === Current Conditions ===
>
>
> Data received at spot at Sat Apr 8 17:02:59 PDT 2000
>
> ---WIND----
> TIME LOC T DP DIR AV GUST VIS PRES SKY / REMARKS
> pdt F F deg -knots- mi inHg heights(ft)
>
> 1656 SFO 54 46 270 15 . 10 30.15 Scattered 1500 Broken 1700 Overcast 1900 10139 20122 56006
>
> 1600 Buoy30Mndo 49 . 160 10 12 . +0.02 waves 7 ft 14 sec
> 1600 Buoy14Arna 49 . 000 0 2 . +0.00 waves 5 ft 14 sec
> 1600 Buoy13Bdga 51 . 310 8 10 . -0.01 waves 5 ft 14 sec
> 1600 Buoy26_GG 52 . 300 12 14 . -0.01 waves 7 ft 14 sec
> 1600 Buoy42Wadl 52 . 300 14 16 . -0.01 waves 5 ft 14 sec
> 1600 Buoy23PtCn 52 . 300 17 21 . -0.04 waves 5 ft 14 sec
> 0500 Oak_300mb -49 -90 205 90 . . . 30300 feet Jet Stream
> 0500 Oak_500mb -3 -69 200 55 . . . 18600 feet
> 0500 Oak_850mb 50 21 250 16 . . . 4900 feet
>
> 1547 Ukiah 63 43 300 12 . 30 -0.04 Few 3500 wind variable 30012kt 270 to 330 30
> 1605 Pt_Bonita . . 060 2 19 . .
> 1605 GG_Bridge . . 260 14 14 . .
> 1400 Pillar_Pt . . 312 9 . . . cldy
> 1605 Pigeon_Pt . . 310 15 0 . .
> 1655 NatBridges 56 . 278 21 24 . -0.05 sun 26.3 w/m2
> 1654 Monterey 54 46 290 9 . 10 -0.01 Overcast 1800 cig lwr west thru north 10144 20111 56006
> 1653 Salinas 57 46 270 10 . 10 -0.02 Overcast 1700 10156 20122 56005
> 1656 San_Luis_O 59 48 300 13 . 10 -0.07 Clear 10178 20144 56012
> 1653 Santa_Barb 77 52 230 8 . 10 -0.19 Clear 10256 20183 56024
>
> 1605 Angel_Is . . 260 19 0 . .
> 1656 SFO 54 46 270 15 . 10 +0.00 Scattered 1500 Broken 1700 Overcast 1900 10139 20122 56006
> 1647 San_Carlos 55 46 240 10 . 20 +0.00 Broken 1700
> 1647 Palo_Alto 59 46 320 20 . 20 -0.03 Scattered 3K
> 1656 Moffet_NAS 59 30 340 16 21 10 -0.02 Scattered 2500 10161 20133 55008
> 1653 San_Jose 57 50 340 14 . 10 -0.03 Few 2500 10167 20133 56007
> 1650 San_Jose/R 61 48 300 15 . 15 -0.03 Clear
>
> 1605 Davis_Pt . . 260 20 21 . .
> 1653 Oakland 55 48 270 15 . 10 -0.01 Overcast 1600 10150 20117 56008
> 1654 Hayward 55 48 270 11 . 10 -0.02 Overcast 1700 10144 20117 56008
> 1653 Concord 59 48 210 15 . 10 -0.04 Broken 2200 10178 20139 56008
> 1653 Livermore 57 46 270 19 . 10 -0.05 Clear 10167 20133 56007
>
> 1653 Sacramento 70 50 190 14 . 10 -0.15 Few 5K 10222 20161 56012
> 1658 Travis_AFB 61 48 250 13 22 15 -0.07 Few 3K pk wnd 26027/57 cb dsptd tcu dsnt nw 8/200 9/200 55007
> 1400 Rio_Vista 66 . 312 15 . . . ptcldy
> 1656 Stockton 70 50 290 15 21 10 -0.11 Clear 10222 20161 55009
> 1653 Merced 73 45 350 10 . 10 -0.14 Clear 10244 20183 56014
>
> 1650 Truckee_Ta 55 25 210 20 27 30 -0.05 Scattered 6500 10144
> 1645 Lake_Tahoe 55 27 230 12 . 30 -0.06 Broken 8K 8hr max0179 min1038
> 1656 Reno 64 21 190 18 24 10 -0.16 Few 9K pk wnd 19030/2329 virga n 10211 20178 56014
> 1656 Bishop 77 10 280 16 24 10 -0.26 Clear 10278 20228 56016
> 1656 Winnemucca 72 23 290 15 20 10 -0.25 Clear 10239 20172 56022
> 1656 Albuquerqu 64 25 160 5 . 10 +0.06 Scattered 18K Broken 25K 10183 20122 56029
>
> 1656 Medford 57 46 160 15 24 10 -0.11 Few 4600 Broken 6K Overcast 7K pk wnd 12030/2341 wshft 2318 tsb54rab10 p0000 60000 10228 20139 53030
> 1656 Eugene 55 45 280 11 . 10 -0.07 Broken 11K 60000 10161 20122 53007
> 1653 Klamath_Fa 48 37 240 8 . 10 -0.13 Broken 8K Broken 18K pk wnd 24038/2258 wshft 2247 tse24rae24 vcsh cb w-n mov n mdt cu alqds 8/963 9/232 p0000 60000 10183 20089 53009
>
> 1656 Astoria 55 48 230 10 20 10 30.07 Clear 10139 20117 51003
> 1655 Portland 70 45 190 8 . 10 -0.09 Scattered 5500 Broken 25K 10217 20139 55008
> 1653 Troutdale 68 45 230 9 . 10 -0.10 Broken 25K 10217 20161 55006
> 1652 The_Dalles 70 36 010 4 . -0.07 30 Few 10K Broken 25K 10210 20129 56027
> 1656 Pendleton 66 37 330 7 . 10 -0.10 Clear 10194 20128 56022
> file w_fsu.buoy.rare is stale (19.1202778 hours old)
>
> Estimate of marine layer depth:
> 00/04/08-0500 Weighted deriv(log(T-DP))
> 00/04/08-0500 1000-925 mb = 174-814 m = 570-2669 ft
> 00/04/08-0500 Avg (T-DP) is 1.6 C up tp 570 ft, 1.6 C up to 1000 ft
>
> === Forecasts ===
>
> San Francisco CA [KSFO] terminal forecast issued on the 8th at 4:30pm PDT
> (2330Z), valid from the 8th at 5pm PDT (00Z) through 5pm PDT (24Z):
> 5pm PDT (00Z): wind 270 degrees at 16 knots, visibility greater
> than 6 miles, 1,500 feet broken
> 10:00pm PDT (0500Z): wind 280 degrees at 10 knots, visibility greater
> than 6 miles, 1,200 feet overcast
> 1am (08Z)-2am PDT (09Z): becoming wind 280 degrees at 6 knots
> 1:00pm PDT (2000Z): wind 280 degrees at 15 knots, visibility greater
> than 6 miles, 2,000 feet scattered
> 3pm (22Z)-4pm PDT (23Z): becoming 2,500 feet few.
>
> coastal marine forecast
> national weather service san francisco
> 300 pm pdt sat apr 08 2000
>
> point arena (nr Ukiah) to point piedras blancas (nr San Luis Obispo) and out 60 nm including the san
> francisco bay area and monterey bay
>
> synopsis for central california coast and bays-
> 300 pm pdt sat apr 08 2000
>
> weak high pressure covers the eastern pacific while weak low pressure
> covers the interior.
>
> point arena (nr Ukiah) to pigeon point (S of Half Moon Bay) out to 20 nm-
> point arena (nr Ukiah) to pigeon point (S of Half Moon Bay) 20 to 60 nm offshore-
> 300 pm pdt sat apr 08 2000
>
> .tonight...wind w to nw 15 kt or less. wind waves 1 to 2 ft.
> swell nw 5 to 7 ft. patchy fog developing.
> .sunday...wind w to nw 10 to 20 kt. wind waves 2 to 4 ft. swell nw 5
> to 7 ft. patchy morning fog.
> .sunday night...wind nw 15 kt or less. wind waves 1 to 2 ft. swell nw
> 5 to 7 ft. patchy fog developing.
>
> pigeon point (S of Half Moon Bay) to point piedras blancas (nr San Luis Obispo) out to 20 nm-
> pigeon point (S of Half Moon Bay) to point piedras blancas (nr San Luis Obispo) 20 to 60 nm offshore-
> 300 pm pdt sat apr 08 2000
>
> .tonight...wind nw 15 kt or less. wind waves 1 to 2 ft. swell nw 5 to
> 7 ft. patchy fog developing.
> .sunday...wind w to nw 10 to 20 kt. wind waves 2 to 4 ft. swell nw 5
> to 7 ft. patchy morning fog.
> .sunday night...wind nw 15 kt or less. wind waves 1 to 2 ft. swell nw
> 5 to 7 ft. patchy fog developing.
>
> san francisco san pablo suisun bays and the west delta-
> 300 pm pdt sat apr 08 2000
>
> ...small craft advisory north of the bay bridge...
>
> .tonight...wind w to nw 15 to 25 kt...strongest through the carquinez
> strait and the west delta. wind becoming 15 kt or less all areas by
> midnight. patchy late night fog.
> .sunday...wind w to nw 10 to 20 kt. patchy morning fog.
> .sunday night...wind w to nw less than 15 kt.
>
> monterey bay-
> 300 pm pdt sat apr 08 2000
>
> .tonight...wind nw 15 kt or less. wind waves 1 to 2 ft. swell w to
> nw 2 to 5 ft. patchy fog developing.
> .sunday...wind nw 10 to 20 kt. wind waves 1 to 3 ft. swell w to nw 2
> to 5 ft. patchy morning fog.
> .sunday night...wind nw less than 15 kt. wind waves 1 to 2 ft. swell
> w to nw 2 to 5 ft.
>
> outlook point arena (nr Ukiah) to point piedras blancas (nr San Luis Obispo) out 60 nm including
> monterey bay and the san francisco bay area-
> 300 pm pdt sat apr 08 2000
>
> .monday through thursday...wind w to nw 10 to 20 kt.
>
> n
>
> san francisco county-san mateo county-santa cruz county-
> 400 pm pdt sat apr 08 2000
>
> .tonight...mostly cloudy. patchy fog forming late. lows mid 40s to
> lower 50s. west evening wind 10 to 20 mph.
> .sunday...areas of morning low clouds and fog...otherwise mostly
> sunny. highs upper 50s and 60s. west wind increasing to 10 to 20
> mph by the afternoon.
> .sunday night...areas of coastal low clouds and fog...extending
> locally inland. otherwise fair. lows mid 40s to lower 50s.
> .monday...areas of morning low clouds and fog...otherwise
> mostly sunny. highs 60s coast to mid 70s inland.
>
> .< temperature / precipitation
> san francisco 48 59 49 61 / 00 00 00 00
> sfo airport 49 62 50 66 / 00 00 00 00
> redwood city 47 67 48 70 / 00 00 00 00
> santa cruz 44 65 45 68 / 00 00 00 00
>
> .extended forecast...
> .tuesday through wednesday...areas of night and morning low
> clouds and fog...otherwise mostly clear. lows mid 40s to lower 50s.
> highs 60s coast to near 80 inland.
> .thursday...mostly cloudy with a chance of rain. lows mid 40s to
> lower 50s. highs 60s coast to mid 70s inland.
>
> =
>
> === Tides ===
>
> Sunrise: 6:40 Sunset: 19:36 (PDT)
> 000408 17:04 the moon is waxing crescent (22% illuminated)
> Crissy 3rd Ave Palo Alto
> High_Tide: 04-08 2:28 AM +5.8 3:42 AM +7.7 4:10 AM +8.5
> Unsafe_After: . . . . 7:35 AM +2.5 7:26 AM +4.0
> Low_Tide: . 8:53 AM -0.5 10:23 AM -0.2 11:19 AM -0.2
> Safe_After: . . . . 1:20 PM +2.5 2:37 PM +4.0
> High_Tide: . 4:05 PM +4.5 4:53 PM +6.3 5:08 PM +6.9
> Unsafe_After: . . . . . . . 9:03 PM +4.0
> Low_Tide: . 8:50 PM +2.4 10:34 PM +2.7 11:41 PM +2.8
> Safe_After: . . . . . . . 1:32 AM +4.0
> High_Tide: 04-09 3:14 AM +5.8 4:31 AM +7.6 4:59 AM +8.4
> Unsafe_After: . . . . 8:29 AM +2.5 8:18 AM +4.0
> Low_Tide: . 9:52 AM -0.4 11:22 AM -0.2 12:18 PM -0.2
> Safe_After: . . . . 2:22 PM +2.5 3:37 PM +4.0
> High_Tide: . 5:20 PM +4.4 5:59 PM +6.1 6:08 PM +6.7
> Unsafe_After: . . . . . . . 10:33 PM +4.0
> Low_Tide: . 9:53 PM +2.8 11:41 PM +3.0 12:46 AM +3.1
> Safe_After: . . . . . . . 2:21 AM +4.0
> High_Tide: 04-10 4:10 AM +5.7 5:25 AM +7.5 5:52 AM +8.3
> Unsafe_After: . . . . 9:29 AM +2.5 9:17 AM +4.0
> Low_Tide: . 10:58 AM -0.3 12:26 PM -0.2 1:20 PM -0.2
> Safe_After: . . . . 3:26 PM +2.5 4:39 PM +4.0
> High_Tide: . 6:40 PM +4.4 7:09 PM +6.0 7:12 PM +6.6
>
> === Buoy and Coastal Weather Report ===
>
> environmental buoy and coastal weather reports
> national weather service san francisco ca
> 200 pm pdt sat apr 8 2000
>
> ----------------------------------------------------------------------
> buoy location time wind air sea press wave data
> no. 21 z dir knots temperature mb feet secs
> ----- ---------- ----- --------- ----------- ------ ---------
> 59 38.0/30.0 20 z e 06 52 54 1021.1 06 14
> 50 44.6/24.5 20 z s 16 50 50 1018.8 08 7
> 27 41.9/24.4 20 z sse 12 50 49 1020.8 05 14
> 30 40.4/24.5 21 z sse 12 49 47 1021.7 05 14
> 14 39.2/24.0 20 z se 04 50 51 1021.8 05 14
> 13 38.2/23.3 20 z nw 06 50 51 1022.0 06 14
> 26 37.8/22.8 21 z wnw 10 51 53 1021.5 05 14
> 42 36.8/22.4 20 z wnw 10 52 52 1022.0 05 14
> 62 35.1/21.0 20 z nw 18 52 55 1020.5 05 17
> 54 34.3/20.4 21 z wnw 28g34 52 53 1018.0 06 17
> 23 34.7/21.0 20 z wnw 16 52 52 1021.4 06 14
> 25 33.7/19.1 20 z nw 06 58 59 1017.4 03 17
> 96 pt.arguello 20 z n 22 50 1020.6
> wave rider buoy 1911 z point reyes nw 5 9
> shallow wave gage 1928 z santa cruz sw 2 17
> wave rider buoy 1925 z diablo canyon w 4 15
> shallow wave gage 1907 z harvest nw 6 15
> wave rider buoy 1926 z san pedro w 3 5
> shallow wave gage 1948 z huntington beach 2 5
> wave rider buoy 1931 z oceanside w 3 5
> wave rider buoy 1945 z scripps pier ne
> ---------------------------------------------------------------------
> wind waves temp press weather -
> coastal reports dir knots ft sec f. inches visibility
> --------------- --------- ------ ---- ------ ----------------
> crescent city s 12 52 30.15s cloudy
> trinidad head calm
> arcata s 08 52 30.17s cloudy
> humboldt bay n/a
> shelter cove s 05 52 n/a cloudy
> fort bragg n/a
> bodega bay n/a
> bodega mar lab nw 09 51 seas > n/a
> pt bonita calm
> gg bridge w 12
> sf pilot stn n/a
> se farallon is w 05 52 30.20
> pillar point nw 09 cldy
> pigeon pt wnw 09
> santa cruz sw 18 clear
> pt pinos calm 30.10 mocldy
> pt piedras blancas n 18 53 n/a
> ---------------------------------------------------------------------
> san francisco bay wind temp press weather - vsby
> ----------------- ---- ---- ------ ---------------
> san fran arpt w 15g19 56 30.16f ptsunny
> treasure island n/a
> pt blunt/angel is wsw 19
> davis pt w 13
> rio vista nw 15 66 30.00 ptcldy
> ---------------------------------------------------------------------
> n
>
> === San Bruno Mtn daytime history ===
>
> ---WIND----
> TIME LOC T DP DIR AV GUST VIS PRES SKY CRYPTIC COMMENTS
> pdt F F deg -knots- mi inHg heights/100ft
>
> === SFO daytime history ===
>
> ---WIND----
> TIME LOC T DP DIR AV GUST VIS PRES SKY CRYPTIC COMMENTS
> pdt F F deg -knots- mi inHg heights/100ft
> 00/04/06-1656 SFO 57 45 270 16 . 10 30.12 Few 1700 10161 20133
> 58007
> 00/04/06-1756 SFO 55 46 260 15 . 10 30.12 Few 1200
> 00/04/06-1856 SFO 54 45 270 13 . 10 30.12 Few 1200
> 00/04/06-1956 SFO 52 45 270 14 . 10 30.12 Few 1200 56002
> .............
> 00/04/07-0656 SFO 48 45 180 4 . 9 30.18 Broken 1200
> 00/04/07-0756 SFO 50 46 160 5 . 10 30.19 Broken 1200 53012
> 00/04/07-0856 SFO 52 46 var 3 . 10 30.19 Few 1500
> 00/04/07-0956 SFO 55 48 080 7 . 8 30.19 Few 2K
> 00/04/07-1056 SFO 55 48 060 8 . 10 30.19 Few 2K 10133 20089
> 58000
> 00/04/07-1156 SFO 57 50 060 5 . 10 30.18 Few 2K
> 00/04/07-1256 SFO 59 50 040 5 . 10 30.16 Few 2K
> 00/04/07-1356 SFO 63 52 020 7 . 10 30.14 Clear 58017
> 00/04/07-1456 SFO 64 54 010 6 . 10 30.11 Clear
> 00/04/07-1556 SFO 63 48 290 17 . 10 30.1 Few 1500
> 00/04/07-1656 SFO 61 48 270 17 . 10 30.1 Few 1400 10194 20128
> 56015
> 00/04/07-1756 SFO 55 48 270 19 . 10 30.1 Few 800
> 00/04/07-1856 SFO 54 48 280 15 . 10 30.09 Few 800
> 00/04/07-1956 SFO 52 48 270 18 . 10 30.11 Few 600 53004
> .............
> 00/04/08-0656 SFO 50 46 250 7 . 10 30.16 Overcast 1200 cig 008
> rwy l10
> 00/04/08-0756 SFO 52 46 240 9 . 10 30.17 Overcast 1200 cig 008
> rwy l10 53003
> 00/04/08-0856 SFO 52 46 270 9 . 10 30.17 Overcast 1200
> 00/04/08-0956 SFO 52 46 280 5 . 10 30.18 Overcast 1400
> 00/04/08-1056 SFO 54 46 240 5 . 10 30.18 Overcast 1400 10122
> 20100 52005
> 00/04/08-1156 SFO 55 46 260 12 . 10 30.18 Broken 1800
> 00/04/08-1256 SFO 55 46 270 16 . 10 30.18 Few 1600 Scattered 1800
> Broken 2K
> 00/04/08-1356 SFO 55 46 250 15 19 10 30.16 Few 1600 Broken 1800
> Broken 2K 58006
> 00/04/08-1456 SFO 55 46 250 17 . 10 30.16 Scattered 1600 Broken
> 1700 Broken 1800
> 00/04/08-1556 SFO 54 46 240 16 . 10 30.15 Few 1400 Scattered 1600
> Broken 1700
> 00/04/08-1656 SFO 54 46 270 15 . 10 30.15 Scattered 1500 Broken
> 1700 Overcast 1900 10139 20122 56006
> ---WIND----
> TIME LOC T DP DIR AV GUST VIS PRES SKY CRYPTIC COMMENTS
> pdt F F deg -knots- mi inHg heights/100ft
>
> === Notices ===
>
> Shark Repellent: No warranty is given concerning the accuracy or
> completeness of the information provided here. Any use made of, or
> reliance on, such information is entirely at the user's own risk.
>
> All data is for non-commercial use only.

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