Storm Station

Live/247 Rank/South Carolina

South Carolina 24/7 Rank

Every station in South Carolina ranked by its 247 score out of 100: how reliably it reports, how accurate its readings are against a reference station, how they pass their checks and how they stand against the forecast, over the last seven days.

900 stations ranked47.3% sent every report dueranked October 4, 2026page 1 of 4South Carolina instrumentsSouth Carolina weather

A station is ranked once its week holds enough reports to measure: 12, or 3 days for a gauge that reports once a day. Of the 900 ranked here, 843 have a page of their own; the rest are platforms heard here that have not yet reported enough to be listed.

Every ranked station, first to last

1stLast
Each rank wears its colour: first in its state in bright green, last in deep red, and every rank between mixed along the band.

How they reported this week

0107213320426under 10%: 4 stations4010 to 19%: 2 stations21020 to 29%: 1 stations12030 to 39%: 27 stations273040 to 49%: 5 stations54050 to 59%: 11 stations115060 to 69%: 96 stations966070 to 79%: 5 stations57080 to 89%: 26 stations268090 to 99%: 297 stations29790every report: 426 stations426100Share of scheduled reports received in the week, per cent

The days behind it

7 days30 days90 days

0225450675900September 26, 2026, every report: 288September 26, 2026, 90 to 99%: 69September 26, 2026, under 90%: 21September 27, 2026, every report: 261September 27, 2026, 90 to 99%: 89September 27, 2026, under 90%: 29September 28, 2026, every report: 357September 28, 2026, 90 to 99%: 101September 28, 2026, under 90%: 23September 29, 2026, every report: 347September 29, 2026, 90 to 99%: 113September 29, 2026, under 90%: 28September 30, 2026, every report: 324September 30, 2026, 90 to 99%: 137September 30, 2026, under 90%: 32October 1, 2026, every report: 238October 1, 2026, 90 to 99%: 217October 1, 2026, under 90%: 42October 2, 2026, every report: 471October 2, 2026, 90 to 99%: 287October 2, 2026, under 90%: 111October 3, 2026, every report: 471October 3, 2026, 90 to 99%: 287October 3, 2026, under 90%: 111October 4, 2026, every report: 426October 4, 2026, 90 to 99%: 297October 4, 2026, under 90%: 177September 26, 2026October 4, 2026

every report90 to 99%under 90%

Every station, ranked

RankStationScorePartsNetworkCountyReceivedReportsArrives inLongest silence
1CharlestonCHS99.9AirportCharleston100%168 of 1689 min60 min
2Anderson Co AirportAND99.9AirportAnderson100%168 of 1689 min60 min
3Wagener 1SWWGRS199.9CooperativeAiken100%7 of 714 min28.2 h
4Diamond Hill SchoolANTS199.9CooperativeAbbeville100%7 of 719 min24.3 h
5HartsvilleHARS199.9CooperativeDarlington100%7 of 719 min24.3 h
6MullinsMULS199.9CooperativeMarion100%7 of 719 min24.3 h
7Pontiac 2NNWPTCS199.9CooperativeRichland100%7 of 719 min25 h
8Spartanburg 3 SSESPGS199.9CooperativeSpartanburg100%7 of 726 min24.2 h
9ManningMANS199.9CooperativeClarendon100%7 of 728 min24 h
10Salley 6NNESLYS199.9CooperativeAiken100%7 of 729 min24 h
11DarlingtonDLGS199.9CooperativeDarlington100%7 of 749 min24 h
12Wastewater Treatmt PltWTRS199.9CooperativeColleton100%7 of 759 min24.5 h
13Cedar CRKBLYS199.9CooperativeFairfield100%7 of 759 min24 h
14CEAS1CEAS199.9DCP-100%7 of 760 min24 h
15CHDS1CHDS199.9DCP-100%7 of 761 min24 h
16AndrewsADWS199.9CooperativeGeorgetown100%7 of 768 min24 h
17ANDAND99.9DCP-100%7 of 781 min24 h
18BEES1BEES199.9DCP-100%7 of 72.3 h24 h
18Hilton Head Island - Met CentralHHCS199.9GaugeBeaufort100%7 of 72.3 h24 h
18Hilton Head Island - Met EastHHES199.9GaugeBeaufort100%7 of 72.3 h24 h
18Mount Pleasant 4WSW - WaterfrontMWPS199.9GaugeCharleston100%7 of 72.3 h24 h
18OKRS1OKRS199.9DCP-100%7 of 72.3 h24 h
18RHCS1RHCS199.9DCP-100%7 of 72.3 h24 h
18SCRS1SCRS199.9DCP-100%7 of 72.3 h24 h
18SMVS1SMVS199.9DCP-100%7 of 72.3 h24 h
18Hilton Head Island - Sea PinesSPMS199.9GaugeBeaufort100%7 of 72.3 h24 h
18Hilton Head Island - WexfordWXMS199.9GaugeBeaufort100%7 of 72.3 h24 h
28Aiken 1.0 SSWSC-AK-2399.9VolunteerAiken100%3 of 326 min24 h
28Aiken 1.6 NNWSC-AK-3299.9VolunteerAiken100%3 of 326 min24 h
28North Augusta 1.5 WSWSC-AK-3999.9VolunteerAiken100%3 of 326 min24 h
28Belton 3.5 WSC-AN-4699.9VolunteerAnderson100%3 of 326 min24 h
28Moncks Corner 6.6 SWSC-BK-10999.9VolunteerBerkeley100%3 of 326 min24 h
28Barnwell 1.2 WSWSC-BW-399.9VolunteerBarnwell100%3 of 326 min24 h
28Mount Croghan 9.0 SSWSC-CF-1999.9VolunteerChesterfield100%3 of 326 min24 h
28Mount Pleasant 7.5 NESC-CR-19299.9VolunteerCharleston100%3 of 326 min24 h
28Seabrook Island 0.2 SSC-CR-22199.9VolunteerCharleston100%3 of 326 min24 h
28North Charleston 2.8 ESESC-CR-30299.9VolunteerCharleston100%3 of 326 min24 h
28NWS Charleston SCSC-CR-4999.9VolunteerCharleston100%3 of 326 min24 h
28Fountain Inn 1.9 SWSC-GV-11599.9VolunteerGreenville100%3 of 326 min24 h
28Ware Place 2.5 ENESC-GV-15299.9VolunteerGreenville100%3 of 326 min24 h
28Travelers Rest 8.9 NSC-GV-799.9VolunteerGreenville100%3 of 326 min24 h
28Myrtle Beach 5.2 SWSC-HR-7399.9VolunteerHorry100%3 of 326 min24 h
28Seneca 5.7 ENESC-OC-3299.9VolunteerOconee100%3 of 326 min24 h
28Santee 6.9 WSWSC-OR-2299.9VolunteerOrangeburg100%3 of 326 min24 h
28Dalzell 2.3 WSC-SM-3799.9VolunteerSumter100%3 of 326 min24 h
28Reidville 2.1 NNWSC-SP-10799.9VolunteerSpartanburg100%3 of 326 min24 h
28Spartanburg 3.9 ENESC-SP-14699.9VolunteerSpartanburg100%3 of 326 min24 h
28Chesnee 4.5 WNWSC-SP-5399.9VolunteerSpartanburg100%3 of 326 min24 h
28Wellford 2.8 ENESC-SP-6699.9VolunteerSpartanburg100%3 of 326 min24 h
28Clover 1.1 NWSC-YR-10199.9VolunteerYork100%3 of 326 min24 h
51West Columbia 1.0 NWSC-LX-19799.9VolunteerLexington100%3 of 326 min25 h
52Edisto Island 3.2 NNESC-CR-24199.9VolunteerCharleston100%3 of 326 min24 h
52Fort Mill 2.3 WSC-YR-6499.9VolunteerYork100%3 of 326 min24 h
54Aiken 8.6 SESC-AK-5199.9VolunteerAiken100%3 of 326 min24 h
54Anderson 6.9 WNWSC-AN-3799.9VolunteerAnderson100%3 of 326 min24 h
56Camden 2.2 NNWSC-KR-4899.9VolunteerKershaw100%3 of 326 min26 h
57Anderson 4.1 NNWSC-AN-7199.9VolunteerAnderson100%3 of 326 min24 h
57Anderson 7.3 WNWSC-AN-8599.9VolunteerAnderson100%3 of 326 min24 h
57Beaufort 6.5 NNWSC-BF-12099.9VolunteerBeaufort100%3 of 326 min24 h
57Bluffton 0.7 NNWSC-BF-9299.9VolunteerBeaufort100%3 of 326 min24 h
57Beaufort 7.1 WNWSC-BF-9899.9VolunteerBeaufort100%3 of 326 min24 h
57Denmark 4.7 NNESC-BM-1299.9VolunteerBamberg100%3 of 326 min24 h
57Mount Pleasant 5.6 ENESC-CR-25499.9VolunteerCharleston100%3 of 326 min24 h
57Piedmont 1.4 NNESC-GV-7899.9VolunteerGreenville100%3 of 326 min24 h
57Myrtle Beach 4.2 SWSC-HR-15699.9VolunteerHorry100%3 of 326 min24 h
57Boiling Springs 1.3 ESESC-SP-14499.9VolunteerSpartanburg100%3 of 326 min24 h
57Lyman 5.3 WNWSC-SP-2399.9VolunteerSpartanburg100%3 of 326 min24 h
57Tega Cay 1.0 WSWSC-YR-6899.9VolunteerYork100%3 of 326 min24 h
69Mount Pleasant 1.9 NSC-CR-24399.9VolunteerCharleston100%3 of 326 min25 h
70Lugoff 8.8 SSWSC-KR-5699.9VolunteerKershaw100%3 of 326 min24 h
70Salem 3.9 ENESC-OC-10599.9VolunteerOconee100%3 of 326 min24 h
72North Augusta 3.6 NSC-AK-11299.9VolunteerAiken100%3 of 326 min24 h
72Allendale 1.7 SESC-AL-299.9VolunteerAllendale100%3 of 326 min24 h
72Bluffton 1.7 SSC-BF-11499.9VolunteerBeaufort100%3 of 326 min24 h
72Beaufort 3.6 SWSC-BF-11999.9VolunteerBeaufort100%3 of 326 min24 h
72Charleston 4.6 SSESC-CR-1399.9VolunteerCharleston100%3 of 326 min24 h
72Ridgeville 3.2 WSWSC-DC-6999.9VolunteerDorchester100%3 of 326 min24 h
72Myrtle Beach 8.9 WSWSC-HR-11999.9VolunteerHorry100%3 of 326 min24 h
72Prosperity 8.1 SSESC-NW-2499.9VolunteerNewberry100%3 of 326 min24 h
72Inman 4.5 WSWSC-SP-14199.9VolunteerSpartanburg100%3 of 326 min24 h
72Reidville 4.2 SWSC-SP-15099.9VolunteerSpartanburg100%3 of 326 min24 h
72Rock Hill 3.1 NSC-YR-2699.9VolunteerYork100%3 of 326 min24 h
83Beaufort 4.2 WSWSC-BF-9399.9VolunteerBeaufort100%3 of 326 min2 days
84Anderson 10.5 SESC-AN-2199.9VolunteerAnderson100%3 of 326 min24 h
84Moncks Corner 3.6 ESC-BK-3899.9VolunteerBerkeley100%3 of 326 min24 h
84Lodge 3.4 SWSC-CL-999.9VolunteerColleton100%3 of 326 min24 h
84Summerville 5.7 SSESC-DC-5599.9VolunteerDorchester100%3 of 326 min24 h
84Trenton 6.5 SSWSC-ED-1399.9VolunteerEdgefield100%3 of 326 min24 h
84Taylors 2.8 NNWSC-GV-699.9VolunteerGreenville100%3 of 326 min24 h
84Murrells Inlet 4.0 NESC-HR-1499.9VolunteerHorry100%3 of 326 min24 h
84Swansea 6.1 SWSC-LX-19299.9VolunteerLexington100%3 of 326 min24 h
84Saluda 3.5 ENESC-SL-699.9VolunteerSaluda100%3 of 326 min24 h
84Lyman 4.1 WNWSC-SP-1199.9VolunteerSpartanburg100%3 of 326 min24 h
94Bluffton 7.2 WNWSC-BF-12699.9VolunteerBeaufort100%3 of 326 min25 h
95Georgetown 13.3 NWSC-GT-4499.9VolunteerGeorgetown100%3 of 385 min24 h
96Paris Mountain 0.7 NWSC-GV-14699.9VolunteerGreenville100%3 of 385 min25 h
97Lugoff 0.9 NWSC-KR-2999.9VolunteerKershaw100%3 of 385 min24 h
97Campobello 1.4 SESC-SP-12099.9VolunteerSpartanburg100%3 of 385 min24 h
99Simpsonville 2.9 ENESC-GV-15699.9VolunteerGreenville100%3 of 386 min25 h
100Trenton 6.3 SSWSC-ED-299.9VolunteerEdgefield100%3 of 386 min24 h
100Hampton 0.8 SWSC-HM-799.9VolunteerHampton100%3 of 386 min24 h
100Murrells Inlet 4.1 NNESC-HR-17399.9VolunteerHorry100%3 of 386 min24 h
100Myrtle Beach 7.4 NNWSC-HR-7599.9VolunteerHorry100%3 of 386 min24 h
100Ridgeland 5.8 ESESC-JS-399.9VolunteerJasper100%3 of 386 min24 h
100Keowee Key 2.4 NWSC-OC-9399.9VolunteerOconee100%3 of 386 min24 h
100North 5.2 ESC-OR-5299.9VolunteerOrangeburg100%3 of 386 min24 h
100Hopkins 3.9 NNESC-RC-3099.9VolunteerRichland100%3 of 386 min24 h
108Pelion 0.7 SSWSC-LX-15499.9VolunteerLexington100%3 of 386 min25 h
108Columbia 5.8 WSC-RC-15099.9VolunteerRichland100%3 of 386 min25 h
110Mount Pleasant 6.4 NESC-CR-6999.9VolunteerCharleston100%3 of 386 min26 h
110Sumter 8.7 SSC-SM-4699.9VolunteerSumter100%3 of 386 min26 h
112Pelion 4.7 WSC-LX-12299.9VolunteerLexington100%3 of 386 min24 h
112Blythewood 1.0 WSC-RC-4199.9VolunteerRichland100%3 of 386 min24 h
114Seneca 8.9 NSC-OC-11799.9VolunteerOconee100%3 of 386 min25 h
114Fort Mill 0.6 WNWSC-YR-10399.9VolunteerYork100%3 of 386 min25 h
116Charleston 4.0 NWSC-CR-18399.9VolunteerCharleston100%3 of 386 min24 h
116Mount Pleasant 2.2 WSC-CR-27899.9VolunteerCharleston100%3 of 386 min24 h
116Darlington 1.4 WNWSC-DR-5499.9VolunteerDarlington100%3 of 386 min24 h
116Pawleys Island 2.7 WNWSC-GT-5699.9VolunteerGeorgetown100%3 of 386 min24 h
116Greenwood 3.7 WSWSC-GW-2699.9VolunteerGreenwood100%3 of 386 min24 h
116Prosperity 0.1 NWSC-NW-2799.9VolunteerNewberry100%3 of 386 min24 h
116Prosperity 4.0 ESC-NW-3099.9VolunteerNewberry100%3 of 386 min24 h
116Six Mile 3.5 WSC-PC-3499.9VolunteerPickens100%3 of 386 min24 h
116Blythewood 5.1 ESC-RC-15499.9VolunteerRichland100%3 of 386 min24 h
116Oakland 1.5 NESC-SM-1499.9VolunteerSumter100%3 of 386 min24 h
126Johns Island 1.8 NESC-CR-7499.9VolunteerCharleston100%3 of 386 min25 h
126Greenville 0.7 ESESC-GV-12899.9VolunteerGreenville100%3 of 386 min25 h
126Hodges 5.5 NESC-GW-899.9VolunteerGreenwood100%3 of 386 min25 h
126Murrells Inlet 1.9 NNESC-HR-12299.9VolunteerHorry100%3 of 386 min25 h
126McCormick 4.4 WSC-MC-1099.9VolunteerMcCormick100%3 of 386 min25 h
126Valencia Heights 1.0 WNWSC-RC-12299.9VolunteerRichland100%3 of 386 min25 h
126Sumter 1.1 SSWSC-SM-3099.9VolunteerSumter100%3 of 386 min25 h
133Irmo 0.6 WSC-LX-22799.9VolunteerLexington100%3 of 386 min27 h
134Beaufort 3.1 ESC-BF-14999.9VolunteerBeaufort100%3 of 386 min24 h
134Georgetown 4.0 E (Hobcaw Barony)SC-GT-4999.9VolunteerGeorgetown100%3 of 386 min24 h
134Myrtle Beach 9.2 WSWSC-HR-6699.9VolunteerHorry100%3 of 386 min24 h
134Fort Mill 3.5 ENESC-LN-299.9VolunteerLancaster100%3 of 386 min24 h
134Orangeburg 0.4 NNWSC-OR-3799.9VolunteerOrangeburg100%3 of 386 min24 h
134Columbia 9.8 NSC-RC-16199.9VolunteerRichland100%3 of 386 min24 h
140Reevesville 1.0 SSESC-DC-1899.9VolunteerDorchester100%3 of 386 min25 h
140Sunset 1.8 NWSC-PC-6699.9VolunteerPickens100%3 of 386 min25 h
142Cottageville 3.1 NNWSC-CL-1799.9VolunteerColleton100%3 of 386 min24 h
142North Charleston 3.5 ESESC-CR-5799.9VolunteerCharleston100%3 of 386 min24 h
142Hodges 6.5 ENESC-GW-1499.9VolunteerGreenwood100%3 of 386 min24 h
142Conway 5.6 NSC-HR-17299.9VolunteerHorry100%3 of 386 min24 h
142Myrtle Beach 2.4 ENESC-HR-6499.9VolunteerHorry100%3 of 386 min24 h
142Salem 0.8 SWSC-OC-7899.9VolunteerOconee100%3 of 386 min24 h
148Beaufort 3.6 NNESC-BF-3599.9VolunteerBeaufort100%3 of 386 min25 h
148Galivants Ferry 7.6 ESC-HR-16199.9VolunteerHorry100%3 of 386 min25 h
150Travelers Rest 7.6 NSC-GV-8099.9VolunteerGreenville100%3 of 386 min2 days
150Hopkins 4.7 NNESC-RC-17199.9VolunteerRichland100%3 of 386 min2 days
152Walterboro 7.4 NNESC-CL-3799.9VolunteerColleton100%3 of 386 min24 h
153Townville 2.7 ESESC-AN-1399.9VolunteerAnderson100%3 of 386 min24 h
153Bluffton 7.7 WNWSC-BF-14799.9VolunteerBeaufort100%3 of 386 min24 h
153Walterboro 3.0 NNWSC-CL-399.9VolunteerColleton100%3 of 386 min24 h
153Charleston 0.3 ESESC-CR-13899.9VolunteerCharleston100%3 of 386 min24 h
153Edisto Beach 5.1 NNWSC-CR-21499.9VolunteerCharleston100%3 of 386 min24 h
153Wadmalaw Island 3.6 ENESC-CR-21799.9VolunteerCharleston100%3 of 386 min24 h
153Johns Island 3.3 WNWSC-CR-21899.9VolunteerCharleston100%3 of 386 min24 h
153Mount Pleasant 4.1 NESC-CR-2699.9VolunteerCharleston100%3 of 386 min24 h
153North Charleston 4.5 WSC-DC-10399.9VolunteerDorchester100%3 of 386 min24 h
153Latta 0.3 NNESC-DL-999.9VolunteerDillon100%3 of 386 min24 h
153Hartsville 3.6 WSWSC-DR-3899.9VolunteerDarlington100%3 of 386 min24 h
153Greenville 5.4 WNWSC-GV-3599.9VolunteerGreenville100%3 of 386 min24 h
153Conway 10.4 ENESC-HR-12699.9VolunteerHorry100%3 of 386 min24 h
153Myrtle Beach 8.4 WNWSC-HR-6799.9VolunteerHorry100%3 of 386 min24 h
153Hardeeville 3.7 ESC-JS-1899.9VolunteerJasper100%3 of 386 min24 h
153Camden 2.1 NSC-KR-5199.9VolunteerKershaw100%3 of 386 min24 h
153Lexington 5.9 SSWSC-LX-22099.9VolunteerLexington100%3 of 386 min24 h
153McCormick 5.3 WSC-MC-1499.9VolunteerMcCormick100%3 of 386 min24 h
153Columbia 6.7 NSC-RC-1299.9VolunteerRichland100%3 of 386 min24 h
153Columbia 5.4 WSC-RC-17099.9VolunteerRichland100%3 of 386 min24 h
153Duncan 2.9 SSESC-SP-12499.9VolunteerSpartanburg100%3 of 386 min24 h
153Boiling Springs 0.8 NNESC-SP-9599.9VolunteerSpartanburg100%3 of 386 min24 h
153Rock Hill 4.1 WNWSC-YR-11199.9VolunteerYork100%3 of 386 min24 h
153Lake Wylie 2.3 SWSC-YR-399.9VolunteerYork100%3 of 386 min24 h
177Salem 3.5 NWSC-OC-10699.9VolunteerOconee100%3 of 386 min25 h
178Manning 7.1 SSC-CD-2399.9VolunteerClarendon100%3 of 386 min2 days
179Summerville 8.9 NNESC-BK-11599.9VolunteerBerkeley100%3 of 386 min24 h
179Travelers Rest 11.0 NSC-GV-12399.9VolunteerGreenville100%3 of 386 min24 h
179Chapin 6.0 SSWSC-LX-19099.9VolunteerLexington100%3 of 386 min24 h
182Coward 5.1 NNWSC-FL-1299.9VolunteerFlorence100%3 of 386 min25 h
183McCormick 12.9 ESC-ED-1899.9VolunteerEdgefield100%3 of 386 min2 days
183Greenwood 4.1 WSWSC-GW-1999.9VolunteerGreenwood100%3 of 386 min2 days
185Conway 4.9 ESESC-HR-18599.9VolunteerHorry100%3 of 386 min24 h
186Williamston 5.4 WSC-AN-499.9VolunteerAnderson100%3 of 386 min24 h
186Mount Pleasant 1.7 NNWSC-CR-13199.9VolunteerCharleston100%3 of 386 min24 h
186Myrtle Beach 6.5 WSC-HR-18099.9VolunteerHorry100%3 of 386 min24 h
186Lugoff 8.7 SSWSC-KR-5599.9VolunteerKershaw100%3 of 386 min24 h
186Kinards 3.7 NNESC-LR-4899.9VolunteerLaurens100%3 of 386 min24 h
186Clio 1.6 WNWSC-MB-1199.9VolunteerMarlboro100%3 of 386 min24 h
186Seneca 4.9 ENESC-OC-7799.9VolunteerOconee100%3 of 386 min24 h
186Pickens 1.5 WSWSC-PC-599.9VolunteerPickens100%3 of 386 min24 h
186Columbia 8.8 NSC-RC-10699.9VolunteerRichland100%3 of 386 min24 h
186Lyman 1.2 NWSC-SP-11699.9VolunteerSpartanburg100%3 of 386 min24 h
186Rock Hill 3.2 SSWSC-YR-7299.9VolunteerYork100%3 of 386 min24 h
197Lexington 3.0 WSWSC-LX-6999.9VolunteerLexington100%3 of 386 min25 h
198Beaufort 1.6 SSWSC-BF-8099.9VolunteerBeaufort100%3 of 386 min24 h
199Conway 1.7 SSWSC-HR-17499.9VolunteerHorry100%3 of 386 min2 days
200North Charleston 2.5 SWSC-CR-30099.9VolunteerCharleston100%3 of 32.4 h24 h
200Dillon 3.8 NWSC-DL-499.9VolunteerDillon100%3 of 32.4 h24 h
200Lexington 2.9 SSC-LX-23199.9VolunteerLexington100%3 of 32.4 h24 h
203Mount Pleasant 8.1 NESC-CR-22599.9VolunteerCharleston100%3 of 32.4 h2 days
204Bluffton 7.4 WSC-BF-11399.9VolunteerBeaufort100%3 of 32.4 h24 h
205Hilton Head Island 4.7 ENESC-BF-11799.9VolunteerBeaufort100%3 of 32.4 h24 h
205Fort Mill 3.0 NWSC-YR-7899.9VolunteerYork100%3 of 32.4 h24 h
207Iva 6.4 SSWSC-AB-1699.9VolunteerAnderson100%3 of 32.4 h24 h
207Aiken 8.3 ESC-AK-3399.9VolunteerAiken100%3 of 32.4 h24 h
207Salley 6.0 NNESC-AK-8799.9VolunteerAiken100%3 of 32.4 h24 h
207Mount Pleasant 0.4 ESC-CR-14899.9VolunteerCharleston100%3 of 32.4 h24 h
207Conway 7.0 ENESC-HR-17999.9VolunteerHorry100%3 of 32.4 h24 h
207Loris 1.4 ENESC-HR-1999.9VolunteerHorry100%3 of 32.4 h24 h
207Surfside Beach 1.0 NESC-HR-3999.9VolunteerHorry100%3 of 32.4 h24 h
207Gilbert 6.2 NNWSC-LX-10599.9VolunteerLexington100%3 of 32.4 h24 h
215Williston 4.3 NNWSC-AK-2799.9VolunteerAiken100%3 of 32.4 h24 h
215Bennettsville 1.2 SESC-MB-299.9VolunteerMarlboro100%3 of 32.4 h24 h
217Summerville 1.9 SSWSC-DC-7699.9VolunteerDorchester100%3 of 32.4 h25 h
218Brunson 4.1 ENESC-HM-1699.9VolunteerHampton100%3 of 32.4 h2 days
219Tamassee 0.9 NWSC-OC-9599.9VolunteerOconee100%3 of 32.4 h24 h
220Moncks Corner 5.1 SSWSC-BK-8299.9VolunteerBerkeley100%3 of 32.4 h24 h
220Charleston 4.8 WNWSC-CR-25699.9VolunteerCharleston100%3 of 32.4 h24 h
220Greenville 3.4 ESESC-GV-19699.9VolunteerGreenville100%3 of 32.4 h24 h
220Irmo 1.0 WNWSC-LX-11499.9VolunteerLexington100%3 of 32.4 h24 h
220Lexington 2.9 NESC-LX-3599.9VolunteerLexington100%3 of 32.4 h24 h
220Lexington 1.6 WNWSC-LX-599.9VolunteerLexington100%3 of 32.4 h24 h
226Saint Helena 7.0 ESC-BF-9699.9VolunteerBeaufort100%3 of 32.4 h2 days
227Isle Of Palms 0.1 ESC-CR-16699.9VolunteerCharleston100%3 of 32.4 h24 h
227Hartsville 0.9 WSC-DR-4399.9VolunteerDarlington100%3 of 32.4 h24 h
227Georgetown 5.3 NNESC-GT-199.9VolunteerGeorgetown100%3 of 32.4 h24 h
227Columbia 6.2 NNWSC-RC-14799.9VolunteerRichland100%3 of 32.4 h24 h
231Pageland 9.0 WNWSC-CF-599.9VolunteerChesterfield100%3 of 32.4 h24 h
231Greenville 4.0 ESESC-GV-10099.9VolunteerGreenville100%3 of 32.4 h24 h
233Reedy River At Reedy Nr Waterloo 8 NWWRLS199.8GaugeLaurens100%168 of 16811 min64 min
234Waccamaw 2 SE LongsLNGS199.8GaugeHorry100%168 of 16811 min64 min
235OrangeburgORBS199.8CooperativeOrangeburg100%7 of 72.6 h24 h
236Darlington County JetportUDG99.8AirportDarlington99.4%167 of 1689 min2 h
237Shaw AFB/SumterSSC99.8AirportSumter99.4%167 of 16810 min2 h
238JeffersonJEFS299.7CooperativeChesterfield100%7 of 72.8 h24 h
239Cades 4 WCADS199.7CooperativeWilliamsburg100%7 of 73 h24 h
239Georgetown County AirportGEOS199.7CooperativeGeorgetown100%7 of 73 h24 h
241Hartsville - Sonoco ProductsHARS199.7GaugeDarlington100%7 of 73 h24 h
242Clemson/Oconee CountyCEU99.7AirportPickens99.4%167 of 16811 min2 h
243JacksonSRSS199.6GaugeAiken100%168 of 16812 min60 min
244St George - Polk SwampPSAS199.6GaugeDorchester99.4%167 of 16811 min2 h
244St George - Polk SwampPSGS199.6GaugeDorchester99.4%167 of 16811 min2 h
244Rediversion Intake Canal Nr St. StephensSSTS199.6GaugeBerkeley99.4%167 of 16811 min2 h
244Tigerville 7N - Trammel GapTMGS199.6GaugeGreenville99.4%167 of 16811 min2 h
244Middle Tyger River 5 SW Middle Tiger Nr GramlingTYGS199.6GaugeSpartanburg99.4%167 of 16811 min2 h
249St MatthewsSTCS199.6GaugeCalhoun99.4%167 of 16811 min1.8 h
250Huger 6SW - French Quarter CreekFQCS199.6GaugeBerkeley99.4%167 of 16811 min2 h

How a station is ranked

The 247 Rank answers one question about a weather station: can its readings be relied on? A station has to deliver: its reports arrive when due, soon, without long silences. And its readings have to be right: close to a trusted station nearby, passing their checks, and in step with the weather the forecast and its neighbours confirm.

The 247 score

Storm Station's poller asks every network on its own schedule, around the clock, and keeps the time of every report it hears; the reference comparison and the forecast engine keep the rest. From the last seven days of that record each station is scored out of 100 on six parts, and its 247 score is their weighted mean:

  1. Reports receivedweight 35The share of its scheduled reports received. A station that sends every 5 minutes is due 2,016 reports in a week; one that reports once a day is due 7. Each report is counted in a slot centred on the station's own report time, so a report a minute early or late is still on time, and the week ends an hour back, so a report still on its way is never counted missed.Full marks: 100% received. No marks: none received.
  2. Arrivalweight 10The median time its reports took to arrive from the moment a reading was taken to the moment it reached Storm Station.Full marks: within 10 minutes, or a tenth of its schedule for a station that reports less often. No marks: an hour, or its whole schedule.
  3. Continuityweight 10Its longest silence against its own schedule, so a daily gauge is not marked down for a day between reports.Full marks: a silence of 3 reports or less. No marks: 72 reports, falling evenly on a log scale between.
  4. Accuracyweight 20How closely its temperature follows its reference station the nearest airport or climate reference station that reported within half an hour, up to 15 miles away, reading by reading. A steady offset is taken out, and where both heights are known only the offset beyond 3 F that the height difference does not explain is counted.Full marks: within 1.5 F, allowing 0.1 F more for each mile to the reference. No marks: 6.5 F beyond that.
  5. Instrument checksweight 15The share of its readings that pass a check. For an airfield, the check the forecast engine runs the next day: each reading against the stations around it, as weather services check their own. For any other station, a reading 20 F or more from its reference fails, unless the two stand 3,000 ft or more apart.Full marks: none failed. No marks: 5% failed.
  6. Forecast checkweight 10How closely its temperature matched Storm Station's forecast for the same hours, checked the next day, for every airfield the forecast engine scores. A station whose readings stray far from a forecast its neighbours confirm is one to doubt.Full marks: within 2 F on average. No marks: 8 F.

A part is scored once the week holds 24 readings or comparisons for it. A part that cannot be measured where a station stands counts at the middle of its state's measured stations, so the station is neither lifted nor sunk by it. A part measured nowhere in the state is left out, and the others carry its weight.

From score to rank

Each state's stations are ranked by their score, to the tenth. At an equal score the longer record comes first: a station that sent 2,016 of 2,016 reports has shown more than one that sent 7 of 7. Then the faster arrival, then the shorter silence. Ties on all of them share a rank, as a race is scored: three stations tied for third are all third, and the next is sixth.

A station is ranked once its week holds enough reports to measure: 12, or 3 days for a gauge that reports once a day. The rank is made again every day, so a station that falls silent or starts to read wrong drops, and one that recovers climbs back. Every page shows the same ranking: a station's rank here, in its state's list and on its own page come from one run, and a new run reaches them together. Each station's page shows its score part by part, with the figures behind each.

The same figures as data

/api/ranks for a state and /api/rank for one station, its score in parts; the developer page has every field.