Station HLNM4 - Search and Rescue Data

9087031 - Holland, MI
42.773 N 86.213 W (42°46'24" N 86°12'46" W)


Average surface winds - six hour block.

Date (UTC) Average
Wind Dir
(True)
Average
Wind Spd
(Knots)
Wind
Obs
Average
Seas
(Feet)
Wave
Obs
Air Temp.
(Degrees F.)
Air Temp.
Obs
Water Temp.
(Degrees F.)
Water Temp.
Obs
2024-07-18 1800Z3211060-064576538
2024-07-18 1200Z359760-061576436
2024-07-18 0600Z11860-063577160
2024-07-18 0000Z3361857-069527360
2024-07-17 1800Z3221760-070577260
2024-07-17 1200Z303660-071577260
2024-07-17 0600Z257260-070547260
2024-07-17 0000Z311360-071517260
2024-07-16 1800Z227660-071547260
2024-07-16 1200Z2061360-072547260
2024-07-16 0600Z216960-072517360
2024-07-16 0000Z152857-078497253
2024-07-15 1800Z1811257-072547157
2024-07-15 1200Z202860-071607160
2024-07-15 0600Z63260-072557059
2024-07-15 0000Z1741157-074436959
2024-07-14 1800Z1811157-072406857
2024-07-14 1200Z1841158-070496660
2024-07-14 0600Z1851260-072396542
2024-07-14 0000Z148560-079476457
2024-07-13 1800Z180358-073436644
2024-07-13 1200Z68260-068506555
2024-07-13 0600Z84360-069606760
2024-07-13 0000Z343660-070546650
2024-07-12 1800Z329559-071596840
2024-07-12 1200Z41260-068576760
2024-07-12 0600Z76460-069576623
2024-07-12 0000Z346760-069576725
2024-07-11 1800Z324560-069576648
2024-07-11 1200Z63360-066606741
2024-07-11 0600Z128157-066586538
2024-07-11 0000Z321760-068576757
2024-07-10 1800Z319860-068606760
2024-07-10 1200Z3401260-069606960
2024-07-10 0600Z15660-069607060
2024-07-10 0000Z293260-071607060
2024-07-09 1800Z273260-071607060
2024-07-09 1200Z190460-070606957
2024-07-09 0600Z171960-071607060
2024-07-09 0000Z171860-074556957
2024-07-08 1800Z171760-072576957
2024-07-08 1200Z1721260-073606960
2024-07-08 0600Z145960-074536760
2024-07-08 0000Z170752-072426551
2024-07-07 1800Z176357-072486557
2024-07-07 1200Z117358-066416859
2024-07-07 0600Z115357-064446449
2024-07-07 0000Z205458-065466456
2024-07-06 1800Z281860-065516550
2024-07-06 1200Z3091260-065506458
2024-07-06 0600Z293960-065526560
2024-07-06 0000Z237557-069496460
2024-07-05 1800Z1831060-068606560
2024-07-05 1200Z107260-067606360
2024-07-05 0600Z144260-066606060
2024-07-05 0000Z294060-069556460
2024-07-04 1800Z171660-067606060
2024-07-04 1200Z169860-068606160
2024-07-04 0600Z171860-069606060
2024-07-04 0000Z170960-066585960
2024-07-03 1800Z172860-061606060
2024-07-03 1200Z1721160-063575933
2024-07-03 0600Z1651651-068515843
2024-07-03 0000Z128860-074525748
2024-07-02 1800Z124660-068606053
2024-07-02 1200Z1111160-064606239
2024-07-02 0600Z1151060-064606135
2024-07-02 0000Z357560-063526323
2024-07-01 1800Z321460-060586437
2024-07-01 1200Z71660-056605852
2024-07-01 0600Z25657-055506824
2024-07-01 0000Z3431353-060477024
2024-06-30 1800Z3211760-059476846
2024-06-30 1200Z3481657-060517056
2024-06-30 0600Z3351753-067517157
2024-06-30 0000Z195756-072577157
2024-06-29 1800Z209755-070387155
2024-06-29 1200Z175958-070327060
2024-06-29 0600Z147858-071466858
2024-06-29 0000Z129960-073496860
2024-06-28 1800Z1311060-070576760
2024-06-28 1200Z1091260-065606660
2024-06-28 0600Z84660-063606951
2024-06-28 0000Z339960-064587160
2024-06-27 1800Z3141257-063607060
2024-06-27 1200Z8860-059607160
2024-06-27 0600Z11960-063607360
2024-06-27 0000Z3351060-071557360
2024-06-26 1800Z303760-070607360
2024-06-26 1200Z324460-071607360
2024-06-26 0600Z211560-071607360
2024-06-26 0000Z1851157-073577360
2024-06-25 1800Z1751860-073607260
2024-06-25 1200Z168660-070607260
2024-06-25 0600Z1641460-077607360
2024-06-25 0000Z161260-074537456
2024-06-24 1800Z295560-069577360
2024-06-24 1200Z48360-064607360
2024-06-24 0600Z248258-066557158
2024-06-24 0000Z2701060-068477456
2024-06-23 1800Z3091660-065567359
2024-06-23 1200Z3001460-066457359
2024-06-23 0600Z1991655-071547460
2024-06-23 0000Z1781356-076457358
2024-06-22 1800Z1761558-076517357
2024-06-22 1200Z178955-074457453
2024-06-22 0600Z154558-076537160
2024-06-22 0000Z87152-076547260
2024-06-21 1800Z204560-070607260
2024-06-21 1200Z229260-069607160
2024-06-21 0600Z286160-070607160
2024-06-21 0000Z323660-071557257
2024-06-20 1800Z329760-073587260
2024-06-20 1200Z79460-074607160
2024-06-20 0600Z44260-073607160
2024-06-20 0000Z129059-081567156
2024-06-19 1800Z1701060-076607160
2024-06-19 1200Z1721560-074577060
2024-06-19 0600Z1771560-075587060
2024-06-19 0000Z1671260-077607060
2024-06-18 1800Z1721360-075607060
2024-06-18 1200Z1701860-076606960
2024-06-18 0600Z1681460-078606960
2024-06-18 0000Z1611158-080556860
2024-06-17 1800Z1691360-073586860
2024-06-17 1200Z1641260-074606660
2024-06-17 0600Z118958-074506760
2024-06-17 0000Z1701260-075456657
2024-06-16 1800Z1501360-081396657
2024-06-16 1200Z1251255-070346460
2024-06-16 0600Z1131255-071536655
2024-06-16 0000Z125557-077406656
2024-06-15 1800Z101457-074386455
2024-06-15 1200Z92850-066396155
2024-06-15 0600Z50754-067326445
2024-06-15 0000Z3461156-064476358
2024-06-14 1800Z4658-072496253
2024-06-14 1200Z64656-067556260
2024-06-14 0600Z186360-065576260
2024-06-14 0000Z174860-068506257
2024-06-13 1800Z1751054-066376157
2024-06-13 1200Z1721460-064556260
2024-06-13 0600Z1681055-071476256
2024-06-13 0000Z160853-072236352
2024-06-12 1800Z1691256-063306252
2024-06-12 1200Z1701260-062376147
2024-06-12 0600Z146957-067436352
2024-06-12 0000Z137556-063336241
2024-06-11 1800Z225450-058365755
2024-06-11 1200Z24158-052456238
2024-06-11 0600Z23460-053545960
2024-06-11 0000Z3331457-057546460
2024-06-10 1800Z3182058-056486258
2024-06-10 1200Z3461160-053546560
2024-06-10 0600Z3581260-055536660
2024-06-10 0000Z3291651-064356653
2024-06-09 1800Z2561355-063466652
2024-06-09 1200Z2671259-061396658
2024-06-09 0600Z2621157-059526554
2024-06-09 0000Z16453-059426655
2024-06-08 1800Z332160-064426658
2024-06-08 1200Z183956-064446658
2024-06-08 0600Z1871060-064526560
2024-06-08 0000Z219757-062466660
2024-06-07 1800Z2991360-061606560
2024-06-07 1200Z2531860-062606560
2024-06-07 0600Z2831360-062546560
2024-06-07 0000Z2761060-064576660
2024-06-06 1800Z2371260-064606660
2024-06-06 1200Z2461524-063246624
2024-06-06 0600Z225421-065216521
2024-06-06 0000Z197460-065606560
2024-06-05 1800Z1831060-065606460
2024-06-05 1200Z1711459-068596659
2024-06-05 0600Z1331060-076606660
2024-06-05 0000Z122660-082516560
2024-06-04 1800Z167660-075486460
2024-06-04 1200Z133960-073576460
2024-06-04 0600Z141960-075546360
2024-06-04 0000Z117460-076556258
2024-06-03 1800Z176557-068466360
2024-06-03 1200Z126460-062576160
2024-06-03 0600Z149160-058546157
2024-06-03 0000Z186530-059265930

The six-hour averages are calculated as follows:

  • The 0000Z average uses data from 2100Z to 0259Z.
  • The 0600Z average uses data from 0300Z to 0859Z.
  • The 1200Z average uses data from 0900Z to 1459Z.
  • The 1800Z average uses data from 1500Z to 2059Z.

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