Mississippi 24/7 Rank
Every station in Mississippi 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.
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 397 ranked here, 393 have a page of their own; the rest are platforms heard here that have not yet reported enough to be listed.
Every station, ranked
| Rank | Station | Score | Parts | Network | County | Received | Reports | Arrives in | Longest silence |
|---|---|---|---|---|---|---|---|---|---|
| 248 | Pelahatchie RainPELM6 | 95.4 | Gauge | Rankin | 98.8% | 166 of 168 | 29 min | 2 h | |
| 248 | Coldwater River 1 W SarahSARM6 | 95.4 | Gauge | Tunica | 98.8% | 166 of 168 | 29 min | 2 h | |
| 248 | Mississippi River 2 SSW VicksburgVCKM6 | 95.4 | Gauge | Warren | 98.8% | 166 of 168 | 29 min | 2 h | |
| 248 | Chickasawhay 3 WNW WaynesboroWYNM6 | 95.4 | Gauge | Greene | 98.8% | 166 of 168 | 29 min | 2 h | |
| 255 | Little Tallahatchie River At BatesvilleBTGM6 | 95.4 | Gauge | Panola | 98.8% | 166 of 168 | 29 min | 2 h | |
| 255 | COLDWATER RIVER 1 W Colwater River at Darling 1WDLGM6 | 95.4 | Gauge | Quitman | 98.8% | 166 of 168 | 29 min | 2 h | |
| 255 | Tallahatchie River AT LambertLMGM6 | 95.4 | Gauge | Quitman | 98.8% | 166 of 168 | 29 min | 2 h | |
| 255 | Coldwater River AT MarksMKSM6 | 95.4 | Gauge | Quitman | 98.8% | 166 of 168 | 29 min | 2 h | |
| 255 | Cassidy Bayou At WebbWEBM6 | 95.4 | Gauge | Tallahatchie | 98.8% | 166 of 168 | 29 min | 2 h | |
| 260 | Ascalmore Tippo Bayou 9 SE Ascalmore Tippo Bayou Nr Swan LakeATBM6 | 95.4 | Gauge | Grenada | 98.8% | 166 of 168 | 29 min | 2 h | |
| 261 | Chickasawhay River AT EnterpriseENSM6 | 95.4 | Gauge | Clarke | 98.8% | 166 of 168 | 29 min | 3 h | |
| 262 | Eubanks Creek AT Eubanks Creek/JacksonUBCM6 | 95.2 | Gauge | Hinds | 98.2% | 165 of 168 | 29 min | 2 h | |
| 263 | Yazoo Rvr/Alligator CatfishALGM6 | 95.2 | Gauge | Leflore | 98.2% | 165 of 168 | 29 min | 2 h | |
| 263 | Little Tallahatchie River 6 NE BatesvilleBBGM6 | 95.2 | Gauge | Panola | 98.2% | 165 of 168 | 29 min | 2 h | |
| 263 | Quiver AT Quiver River near DoddsvilleDODM6 | 95.2 | Gauge | Leflore | 98.2% | 165 of 168 | 29 min | 2 h | |
| 263 | Greenwood Cutoff (Upstream)GWNM6 | 95.2 | Gauge | Leflore | 98.2% | 165 of 168 | 29 min | 2 h | |
| 263 | Yazoo River At Shell BluffSBGM6 | 95.2 | Gauge | Leflore | 98.2% | 165 of 168 | 29 min | 2 h | |
| 263 | Quiver River near Sunflower 6 E SUNFLOWERSNFM6 | 95.2 | Gauge | Leflore | 98.2% | 165 of 168 | 29 min | 2 h | |
| 263 | Sardis Lake Outlet - Little TallahatchieSROM6 | 95.2 | Gauge | Panola | 98.2% | 165 of 168 | 29 min | 2 h | |
| 270 | Black BayouBBYM6 | 95.0 | Gauge | Tallahatchie | 97.6% | 164 of 168 | 29 min | 2 h | |
| 271 | Grenada Dam TailwaterGRTM6 | 94.8 | Gauge | Grenada | 97.0% | 163 of 168 | 29 min | 2 h | |
| 271 | Yocona River AT OxfordOXDM6 | 94.8 | Gauge | Lafayette | 97.0% | 163 of 168 | 29 min | 2 h | |
| 271 | Tallahatchie River 4 SSE Swan LakeSWNM6 | 94.8 | Gauge | Tallahatchie | 97.0% | 163 of 168 | 29 min | 2 h | |
| 271 | Yalobusha AT HolcombUHGM6 | 94.8 | Gauge | Grenada | 97.0% | 163 of 168 | 29 min | 2 h | |
| 271 | Yalobusha AT WhaleyYWGM6 | 94.8 | Gauge | Leflore | 97.0% | 163 of 168 | 29 min | 2 h | |
| 276 | Enid Dam TailwaterENTM6 | 94.6 | Gauge | Yalobusha | 96.4% | 162 of 168 | 29 min | 2 h | |
| 277 | GlosterGLOM6 | 94.6 | Cooperative | Amite | 85.7% | 6 of 7 | 27 min | 2 days | |
| 278 | WigginsWIGM6 | 94.6 | Cooperative | Stone | 85.7% | 6 of 7 | 57 min | 2 days | |
| 279 | WaynesboroWAYM6 | 94.6 | Cooperative | Wayne | 85.7% | 6 of 7 | 76 min | 24 h | |
| 280 | Collinsville CoopCLLM6 | 94.6 | Cooperative | Lauderdale | 85.7% | 6 of 7 | 1.6 h | 2 days | |
| 281 | Pass Christian 5.0 NMS-HR-19 | 94.5 | Volunteer | Harrison | 100% | 3 of 3 | 13.4 h | 24 h | |
| 282 | ClarksdaleCKM | 94.4 | Airport | Coahoma | 96.8% | 488 of 504 | 8 min | 3.3 h | |
| 283 | Wool Market - Camp KellerCKWM6 | 94.2 | Gauge | Harrison | 100% | 168 of 168 | 19 min | 62 min | |
| 284 | PQLPQL | 94.0 | DCP | - | 85.7% | 6 of 7 | 3.6 h | 23.9 h | |
| 285 | Black Bayou @ HWY 12BLBM6 | 93.9 | Gauge | Washington | 100% | 168 of 168 | 38 min | 62 min | |
| 285 | Yazoo River AT GreenwoodGREM6 | 93.9 | Gauge | Leflore | 100% | 168 of 168 | 38 min | 62 min | |
| 285 | Main Canal Near Wayside (Longwood)WYSM6 | 93.9 | Gauge | Washington | 100% | 168 of 168 | 38 min | 62 min | |
| 288 | Pemburton Cutoff Yazoo RvrGPMM6 | 93.9 | Gauge | Leflore | 100% | 168 of 168 | 38 min | 62 min | |
| 289 | Big Sunflower River 10 W Little Calio Lndg (belzoni)LCGM6 | 93.7 | Gauge | Humphreys | 99.4% | 167 of 168 | 38 min | 2 h | |
| 290 | Big Sunflower River 3 E AnguillaANGM6 | 93.7 | Gauge | Sharkey | 99.4% | 167 of 168 | 38 min | 2 h | |
| 290 | Big Sunflower At Big Sunflower River @ ClarkdaleBSCM6 | 93.7 | Gauge | Coahoma | 99.4% | 167 of 168 | 38 min | 2 h | |
| 290 | Big Sunflower River 3 SSW LombardyLBSM6 | 93.7 | Gauge | Sunflower | 99.4% | 167 of 168 | 38 min | 2 h | |
| 290 | Wasp Lake Cntl Str LandsideWLLM6 | 93.7 | Gauge | Humphreys | 99.4% | 167 of 168 | 38 min | 2 h | |
| 290 | Yazoo River 1 W Yazoo CityYZOM6 | 93.7 | Gauge | Yazoo | 99.4% | 167 of 168 | 38 min | 2 h | |
| 295 | Little Sunflower Floodgate - RiversideLSGM6 | 93.7 | Gauge | Issaquena | 99.4% | 167 of 168 | 38 min | 2 h | |
| 296 | Richton 3.4 NMS-PY-4 | 93.6 | Volunteer | Perry | 100% | 3 of 3 | 15.4 h | 2 days | |
| 297 | Senatobia 1.5 SMS-TT-1 | 93.6 | Volunteer | Tate | 100% | 3 of 3 | 15.4 h | 2 days | |
| 298 | Yazoo River AT BelzoniBELM6 | 93.6 | Gauge | Humphreys | 99.4% | 167 of 168 | 39 min | 2 h | |
| 298 | Steele Bayou Near GraceGRGM6 | 93.6 | Gauge | Issaquena | 99.4% | 167 of 168 | 39 min | 2 h | |
| 298 | Big Sunflower River AT Holly BluffHOGM6 | 93.6 | Gauge | Sharkey | 99.4% | 167 of 168 | 39 min | 2 h | |
| 298 | Little Sunflower Floodgate-Land SideLSLM6 | 93.6 | Gauge | Issaquena | 99.4% | 167 of 168 | 39 min | 2 h | |
| 298 | Steele Bayou 0 AT Steele Bayou Structure (Landside/Riverside)SBSM6 | 93.6 | Gauge | Issaquena | 99.4% | 167 of 168 | 39 min | 2 h | |
| 298 | Wasp Lake Cntl Str RiversideWLRM6 | 93.6 | Gauge | Humphreys | 99.4% | 167 of 168 | 39 min | 2 h | |
| 298 | Yazoo City Pumping PlantYPPM6 | 93.6 | Gauge | Yazoo | 99.4% | 167 of 168 | 39 min | 2 h | |
| 305 | Wolf River 11 NW LandonLNDM6 | 93.6 | Gauge | Harrison | 95.2% | 160 of 168 | 23 min | 5 h | |
| 306 | Wolf Lake - Hwy 149WLFM6 | 93.4 | Gauge | Yazoo | 98.8% | 166 of 168 | 39 min | 2 h | |
| 307 | Muddy Bayou Control StructureMBGM6 | 93.0 | Gauge | Warren | 97.6% | 164 of 168 | 39 min | 3 h | |
| 308 | BatesvillePMU | 93.0 | Airport | Panola | 97.2% | 490 of 504 | 8 min | 2.7 h | |
| 309 | MadisonMBO | 93.0 | Airport | Madison | 93.0% | 469 of 504 | 8 min | 4.3 h | |
| 310 | Little Tallahatchie Canal 12 W Little Tallahatchie River at EttaETAM6 | 93.0 | Gauge | Union | 86.1% | 193 of 224 | 19 min | 62 min | |
| 311 | Meridian RangeNJW | 93.0 | Airport | Kemper | 82.7% | 139 of 168 | 6 min | 4 h | |
| 312 | Brookhaven1R7 | 92.7 | Airport | Lincoln | 93.4% | 471 of 504 | 8 min | 4.3 h | |
| 313 | Iuka15M | 92.5 | Airport | Tishomingo | 93.0% | 469 of 504 | 8 min | 4.3 h | |
| 314 | AberdeenM40 | 92.5 | Airport | Monroe | 92.8% | 468 of 504 | 8 min | 4.3 h | |
| 315 | PhiladelphiaMPE | 92.4 | Airport | Neshoba | 92.6% | 467 of 504 | 8 min | 4.3 h | |
| 316 | Columbus CoopCUSM6 | 92.4 | Cooperative | Lowndes | 85.7% | 6 of 7 | 7.1 h | 47 h | |
| 317 | Holly Springs 4 N23803 | 92.3 | Reference | Marshall | 100% | 67 of 67 | 1.5 h | 3 h | |
| 317 | Newton 5 ENE63831 | 92.3 | Reference | Newton | 100% | 67 of 67 | 1.5 h | 3 h | |
| 319 | Tunica Municipal AirportUTA | 92.3 | Airport | Tunica | 93.2% | 470 of 504 | 8 min | 4.3 h | |
| 320 | OxfordUOX | 92.0 | Airport | Lafayette | 93.0% | 469 of 504 | 8 min | 4.3 h | |
| 321 | Mccomb/Lewis FieldMCB | 91.5 | Airport | Pike | 91.0% | 153 of 168 | 10 min | 16.6 h | |
| 322 | Belmont01M | 91.3 | Airport | Tishomingo | 93.2% | 470 of 504 | 8 min | 4.3 h | |
| 323 | VicksburgVKS | 90.8 | Airport | Warren | 92.4% | 466 of 504 | 18 min | 4.3 h | |
| 324 | Beasley Lake ScanBSYM6 | 90.5 | Gauge | Sunflower | 95.2% | 160 of 168 | 39 min | 5 h | |
| 324 | Onward ScanOONM6 | 90.5 | Gauge | Sharkey | 95.2% | 160 of 168 | 39 min | 5 h | |
| 324 | Perthshire ScanPERM6 | 90.5 | Gauge | Bolivar | 95.2% | 160 of 168 | 39 min | 5 h | |
| 324 | Sandy Ridge ScanSRXM6 | 90.5 | Gauge | Sunflower | 95.2% | 160 of 168 | 39 min | 5 h | |
| 324 | Starkville ScanSTKM6 | 90.5 | Gauge | Clay | 95.2% | 160 of 168 | 39 min | 5 h | |
| 324 | Tunica ScanTNAM6 | 90.5 | Gauge | Tunica | 95.2% | 160 of 168 | 39 min | 5 h | |
| 324 | Vance ScanVNCM6 | 90.5 | Gauge | Tallahatchie | 95.2% | 160 of 168 | 39 min | 5 h | |
| 331 | North Issaquena ScanNORM6 | 90.3 | Gauge | Issaquena | 94.6% | 159 of 168 | 39 min | 5 h | |
| 331 | Scott ScanSCOM6 | 90.3 | Gauge | Bolivar | 94.6% | 159 of 168 | 39 min | 5 h | |
| 333 | Goodwin Ck Pasture ScanGCPM6 | 89.8 | Gauge | Panola | 95.2% | 160 of 168 | 39 min | 5 h | |
| 334 | Rosedale 3N - Mississippi RiverROSM6 | 89.6 | Gauge | Bolivar | 100% | 168 of 168 | 69 min | 2 h | |
| 335 | Tunica - Mississippi Mhoon LandingMHOM6 | 89.6 | Gauge | Tunica | 100% | 168 of 168 | 69 min | 2 h | |
| 336 | Jackson - Steele BayouSBLM6 | 89.4 | Gauge | Sharkey | 99.4% | 167 of 168 | 69 min | 2 h | |
| 336 | Yazoo River AT SatartiaYRSM6 | 89.4 | Gauge | Yazoo | 99.4% | 167 of 168 | 69 min | 2 h | |
| 338 | Winona5A6 | 89.4 | Airport | Montgomery | 96.0% | 484 of 504 | 8 min | 2.7 h | |
| 339 | Mississippi River AT Friars PointFRPM6 | 89.0 | Gauge | Coahoma | 98.2% | 165 of 168 | 69 min | 2 h | |
| 340 | RaymondJVW | 88.9 | Airport | Hinds | 93.0% | 469 of 504 | 8 min | 4.3 h | |
| 341 | Coldwater River 6 SE Cold Water River Near Olive Branch 6SEOLVM6 | 88.6 | Gauge | De Soto | 87.5% | 147 of 168 | 19 min | 14 h | |
| 342 | Sowashee Creek AT MeridianMEIM6 | 88.5 | Gauge | Lauderdale | 76.1% | 128 of 168 | 24 min | 2 h | |
| 343 | Greenville MuniGLH | 88.4 | Airport | Washington | 86.9% | 146 of 168 | 10 min | 22 h | |
| 344 | Beasley LakeS2032 | 88.3 | Soil | Sunflower | 94.1% | 128 of 136 | 43 min | 7 h | |
| 345 | Goodwin Ck Timber ScanGCTM6 | 88.0 | Gauge | Panola | 95.2% | 160 of 168 | 39 min | 5 h | |
| 346 | Lucedale 9.2 ESEMS-GG-5 | 87.9 | Volunteer | George | 66.6% | 2 of 3 | 26 min | 36 h | |
| 347 | Ocean Springs 2.5 NWMS-JC-32 | 87.9 | Volunteer | Jackson | 66.6% | 2 of 3 | 86 min | 35 h | |
| 348 | Perkinston 1.7 NEMS-ST-4 | 87.9 | Volunteer | Stone | 66.6% | 2 of 3 | 86 min | 36 h | |
| 349 | Florence 1.0 WSWMS-RN-33 | 87.9 | Volunteer | Rankin | 66.6% | 2 of 3 | 2.4 h | 36 h | |
| 350 | Mayday ScanMAYM6 | 87.6 | Gauge | Yazoo | 86.9% | 146 of 168 | 39 min | 5 h | |
| 351 | Columbus 5.3 ESEMS-LW-5 | 87.4 | Volunteer | Lowndes | 66.6% | 2 of 3 | 3.4 h | 25 h | |
| 352 | Hazlehurst 0.8 WSWMS-CP-3 | 87.4 | Volunteer | Copiah | 66.6% | 2 of 3 | 3.4 h | 35 h | |
| 353 | Oxford 3.9 NMS-LY-14 | 87.0 | Volunteer | Lafayette | 66.6% | 2 of 3 | 4.4 h | 2 days | |
| 354 | Keesler AFB/BiloxiBIX | 86.5 | Airport | Harrison | 99.4% | 167 of 168 | 13 min | 1.8 h | |
| 355 | Churchwell Road (Camp Dansler)BCRM6 | 86.4 | Gauge | Forrest | 80.3% | 135 of 168 | 23 min | 10 h | |
| 356 | Madison 5.7 WNWMS-MD-8 | 86.1 | Volunteer | Madison | 66.6% | 2 of 3 | 6.4 h | 2 days | |
| 357 | OnwardS2033 | 85.9 | Soil | Sharkey | 94.1% | 128 of 136 | 53 min | 8 h | |
| 357 | North IssaquenaS2087 | 85.9 | Soil | Issaquena | 94.1% | 128 of 136 | 53 min | 8 h | |
| 357 | Sandy RidgeS2109 | 85.9 | Soil | Sunflower | 94.1% | 128 of 136 | 53 min | 8 h | |
| 360 | Tnc Fort Bayou ScanTFBM6 | 85.6 | Gauge | Jackson | 95.2% | 160 of 168 | 39 min | 5 h | |
| 361 | Goodwin Ck PastureS2024 | 85.6 | Soil | Panola | 93.3% | 127 of 136 | 43 min | 7 h | |
| 362 | TunicaS2034 | 85.6 | Soil | Tunica | 93.3% | 127 of 136 | 53 min | 8 h | |
| 362 | VanceS2035 | 85.6 | Soil | Tallahatchie | 93.3% | 127 of 136 | 53 min | 8 h | |
| 362 | PerthshireS2046 | 85.6 | Soil | Bolivar | 93.3% | 127 of 136 | 53 min | 8 h | |
| 362 | ScottS2070 | 85.6 | Soil | Bolivar | 93.3% | 127 of 136 | 53 min | 8 h | |
| 366 | StarkvilleS2064 | 85.4 | Soil | Oktibbeha | 93.3% | 127 of 136 | 53 min | 8 h | |
| 367 | Big Sunflower River AT SunflowerSUNM6 | 85.2 | Gauge | Sunflower | 86.9% | 146 of 168 | 28 min | 21 h | |
| 368 | Gulfport 2.6 WSWMS-HR-57 | 85.1 | Volunteer | Harrison | 66.6% | 2 of 3 | 8.4 h | 38 h | |
| 369 | MaydayS2110 | 84.9 | Soil | Yazoo | 91.1% | 124 of 136 | 53 min | 8 h | |
| 370 | ClarksdaleCLKM6 | 84.6 | Cooperative | Coahoma | 57.1% | 4 of 7 | 12 min | 2 days | |
| 371 | BelzoniBLZM6 | 84.6 | Cooperative | Humphreys | 57.1% | 4 of 7 | 27 min | 2 days | |
| 372 | CoffeevilleCFFM6 | 84.6 | Cooperative | Yalobusha | 57.1% | 4 of 7 | 1.8 h | 2.5 days | |
| 373 | P Harrison Dunns Falls CoopPDFM6 | 84.6 | Cooperative | Lauderdale | 57.1% | 4 of 7 | 1.9 h | 2 days | |
| 374 | Goodwin Ck TimberS2025 | 84.4 | Soil | Panola | 93.3% | 127 of 136 | 43 min | 7 h | |
| 375 | Ocean SpringsOCSM6 | 84.4 | Cooperative | Jackson | 57.1% | 4 of 7 | 2.8 h | 2 days | |
| 376 | Kosciusko RainKZAM6 | 82.3 | Gauge | Attala | 61.3% | 103 of 168 | 29 min | 62 min | |
| 377 | PicayuneMJD | 82.2 | Airport | Pearl River | 58.1% | 293 of 504 | 8 min | 2.7 h | |
| 378 | Tnc Fort BayouS2082 | 81.4 | Soil | Jackson | 94.1% | 128 of 136 | 53 min | 8 h | |
| 379 | Bay_St._LouisHSA | 81.0 | Airport | Hancock | 60.7% | 102 of 168 | 13 min | 11 h | |
| 380 | Met Site Grand Bay At Moss PointGDXM6 | 80.7 | Gauge | Jackson | 86.1% | 193 of 224 | 19 min | 62 min | |
| 381 | Olive BranchOLV | 79.6 | Airport | De Soto | 56.1% | 283 of 504 | 8 min | 4.3 h | |
| 382 | Mississippi River 10 N Tunica RiverparkTRPM6 | 78.5 | Gauge | Tunica | 69.0% | 116 of 168 | 24 min | 32.3 h | |
| 383 | Brandon 1.9 NEMS-RN-3 | 77.9 | Volunteer | Rankin | 66.6% | 2 of 3 | 24.4 h | 36 h | |
| 384 | Columbus 5.3 NMS-LW-2 | 77.9 | Volunteer | Lowndes | 66.6% | 2 of 3 | 25.4 h | 37 h | |
| 385 | Louisville - WinstonLMS | 77.5 | Airport | Winston | 44.6% | 225 of 504 | 8 min | 2.7 h | |
| 386 | Jackson - White Oak CreekWOWM6 | 76.8 | Gauge | Hinds | 68.4% | 115 of 168 | 24 min | 2.2 days | |
| 387 | Liberty 1.4 WMS-AM-4 | 76.2 | Volunteer | Amite | 33.3% | 1 of 3 | 2.4 h | 2.5 days | |
| 388 | Hattiesburg 3SWHTBM6 | 76.0 | Cooperative | Forrest | 42.8% | 3 of 7 | 10.3 h | 3 days | |
| 389 | StarkvilleSTF | 75.8 | Airport | Oktibbeha | 41.0% | 41 of 100 | 8 min | 15.7 h | |
| 390 | Beaumount - Exp StationBESM6 | 74.6 | Cooperative | Perry | 57.1% | 4 of 7 | 25.4 h | 36 h | |
| 391 | Lumberton 11.7 SSEMS-PR-14 | 72.1 | Volunteer | Pearl River | 33.3% | 1 of 3 | 11.4 h | 2.5 days | |
| 392 | LURM6LURM6 | 71.9 | DCP | - | 39.2% | 22 of 56 | 33 min | 2.1 days | |
| 393 | Jourdan River 2 SSW Kiln/Bay St. LouisKLNM6 | 69.6 | Gauge | Hancock | 50.6% | 85 of 168 | 23 min | 3.4 days | |
| 394 | Pascagoula River AT Graham FerryPGFM6 | 69.3 | Gauge | Jackson | 36.9% | 62 of 168 | 24 min | 17 h | |
| 395 | Silver City ScanSILM6 | 60.3 | Gauge | Humphreys | 32.7% | 55 of 168 | 39 min | 4.8 days | |
| 396 | ClevelandRNV | 57.8 | Airport | Bolivar | 17.8% | 90 of 504 | 18 min | 5.8 days | |
| 397 | Silver CityS2086 | 52.0 | Soil | Humphreys | 16.9% | 23 of 136 | 52 min | 4.8 days |
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:
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.