Live/247 Rank/Arkansas

Arkansas 24/7 Rank

Every station in Arkansas 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.

678 stations ranked41.7% sent every report dueranked October 16, 2026page 3 of 3Arkansas instrumentsArkansas 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 678 ranked here, 671 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	Network	County	Received	Reports	Arrives in	Longest silence
497	TYRONZA RIVER 2 NW TyronzaTYGA4	90.0	Gauge	Craighead	98.2%	165 of 168	55 min	2 h
502	Spavinaw Creek near Maysville07191160	90.0	Gauge	Benton	74.2%	499 of 672	13 min	45 min
503	AR HWY 109: in Johnson CountyARD37	89.9	Road	Johnson	88.8%	448 of 504	27 min	2.2 h
504	I-30 East AR River BridgeARD33	89.8	Road	Pulaski	92.4%	233 of 252	28 min	6.4 h
505	I-40 Eb White River ReliefARD17	89.8	Road	Prairie	88.6%	447 of 504	27 min	2.2 h
506	U.S 63 Hwy. Black Rock RiverARD28	89.8	Road	Lawrence	88.1%	444 of 504	27 min	2.2 h
507	Hot Spring Hwy 70 & 70BARD09	89.7	Road	Garland	88.8%	448 of 504	27 min	2.2 h
508	MIDDLE FK LIT RED RIV AT Shirley DCPSRGA4	89.7	Gauge	Van Buren	80.3%	176 of 219	25 min	2 h
509	Little Missouri River 2 NE BoughtonBHTA4	89.6	Gauge	Clark	100%	168 of 168	64 min	61 min
509	CACHE RIVER AT Brasfield DCPBSFA4	89.6	Gauge	Prairie	100%	168 of 168	64 min	61 min
509	L'Anguille River 2 NE Marianna 1 NELAMA4	89.6	Gauge	Lee	100%	168 of 168	64 min	61 min
509	LITTLE MISSOURI RIVER LK GREESON AT Lake Greeson-Narrows DamNADA4	89.6	Gauge	Pike	100%	168 of 168	64 min	61 min
513	CANAL 43 AT Canal 43 Nr Ark. City DCPAKGA4	89.6	Gauge	Desha	100%	168 of 168	65 min	2 h
513	Arkansas River AT Little RockLITA4	89.6	Gauge	Pulaski	100%	168 of 168	65 min	2 h
515	St Francis At Marked Tree SyphonMTSA4	89.6	Gauge	Poinsett	100%	168 of 168	74 min	2 h
515	Right Hand Chute Little River At PettyvillePVEA4	89.6	Gauge	Mississippi	100%	168 of 168	74 min	2 h
517	White River At Graham Burke Pump PlantGBPA4	89.6	Gauge	Phillips	100%	168 of 168	75 min	2 h
517	Gosnell - Belle Fountain DitchGOSA4	89.6	Gauge	Mississippi	100%	168 of 168	75 min	2 h
517	Fifteen Mile Bayou near Greasy CornerGREA4	89.6	Gauge	St. Francis	100%	168 of 168	75 min	2 h
517	Saint Francis River At Huxtable Pump STN UsHPGA4	89.6	Gauge	Lee	100%	168 of 168	75 min	2 h
517	DITCH 81 2 E Ditch 81MDEA4	89.6	Gauge	Mississippi	100%	168 of 168	75 min	2 h
517	SAINT FRANCIS RIVER AT ParkinPNGA4	89.6	Gauge	Cross	100%	168 of 168	75 min	2 h
523	SheridanSHDA4	89.6	Cooperative	Grant	71.4%	5 of 7	3 min	26 h
524	Mountain HomeMHMA4	89.6	Cooperative	Baxter	71.4%	5 of 7	23 min	3 days
525	Cane CRK State ParkSTAA4	89.6	Cooperative	Lincoln	71.4%	5 of 7	23 min	2 days
526	Pine Bluff 7.9 EAR-JF-10	89.6	Volunteer	Jefferson	71.4%	5 of 7	26 min	24 h
527	Rogers 2.4 SSWAR-BT-50	89.6	Volunteer	Benton	71.4%	5 of 7	26 min	2 days
528	DequeenDQEA4	89.6	Cooperative	Sevier	71.4%	5 of 7	33 min	3 days
529	CorningCRNA4	89.6	Cooperative	Clay	71.4%	5 of 7	43 min	3 days
530	Greers Ferry Dam-L. Red RiverGFOA4	89.6	Cooperative	Cleburne	71.4%	5 of 7	53 min	2 days
531	BATESVILLE L&D 1BATA4	89.6	Cooperative	Independence	71.4%	5 of 7	53 min	24 h
532	MagnoliaMAGA4	89.6	Cooperative	Columbia	71.4%	5 of 7	53 min	3 days
533	Radio Station KdynOZAA4	89.6	Cooperative	Franklin	71.4%	5 of 7	83 min	2 days
534	Metalton 3.5 WAR-CR-15	89.6	Volunteer	Carroll	71.4%	5 of 7	86 min	24 h
535	Berryville 4.3 NAR-CR-22	89.6	Volunteer	Carroll	71.4%	5 of 7	86 min	2.5 days
536	MariannaMRNA4	89.6	Cooperative	Lee	71.4%	5 of 7	1.5 h	3 days
537	HardyHRDA4	89.6	Cooperative	Sharp	71.4%	5 of 7	2.4 h	2.9 days
538	East End 1.6 NEAR-SL-49	89.6	Volunteer	Saline	71.4%	5 of 7	2.4 h	3 days
539	I-49 DoddridgeARD01	89.5	Road	Miller	87.7%	442 of 504	27 min	2.2 h
540	Buffalo @ GilbertGLBA4	89.5	Cooperative	Searcy	71.4%	5 of 7	2.5 h	2 days
541	Ouachita River AT ArkadelphiaAKDA4	89.4	Gauge	Clark	99.4%	167 of 168	64 min	2 h
542	LITTLE MISSOURI RIVER AT Little Missouri R. @ MurfreesboroMLMA4	89.4	Gauge	Pike	99.4%	167 of 168	64 min	2 h
543	Big Bayou Near Lake VillageBBLA4	89.4	Gauge	Chicot	99.4%	167 of 168	65 min	2 h
543	Connerly Bayou Near Lake VillageCBGA4	89.4	Gauge	Chicot	99.4%	167 of 168	65 min	2 h
543	CANAL 43 AT Canal 43 N. Near Dumas DCPDUGA4	89.4	Gauge	Desha	99.4%	167 of 168	65 min	2 h
543	Lake Chicot Pump-River SideLCLA4	89.4	Gauge	Chicot	99.4%	167 of 168	65 min	2 h
543	Ditch Bayou Near Lake VillageLVGA4	89.4	Gauge	Chicot	99.4%	167 of 168	65 min	2 h
543	Macon Lake Near MaconMLGA4	89.4	Gauge	Chicot	99.4%	167 of 168	65 min	2 h
549	ClintonCCA	89.4	Airport	Van Buren	89.0%	449 of 504	4 min	2.7 h
550	CANAL 81 AT Canal 81 Nr Ark. City DCPAKNA4	89.2	Gauge	Desha	98.8%	166 of 168	65 min	2 h
550	Big Bayou Near DermottBBDA4	89.2	Gauge	Chicot	98.8%	166 of 168	65 min	2 h
552	LAND SIDE OF LEVEE WHITE RIVER AT G. Burke Pump Plant DCPGBLA4	89.2	Gauge	Phillips	98.8%	166 of 168	75 min	2 h
552	St. Francis River 7 SE Huxtable Pump STN DsHXGA4	89.2	Gauge	Lee	98.8%	166 of 168	75 min	2 h
554	Hwy 65 Clinton at Archery Fork C AR USARD23	89.2	Road	Van Buren	88.8%	448 of 504	27 min	2.3 h
555	Buffalo River at Ponca07055660	89.2	Gauge	Newton	74.5%	501 of 672	18 min	45 min
555	Buffalo River at Pruitt07055680	89.2	Gauge	Newton	74.5%	501 of 672	18 min	45 min
555	Cossatot River near Vandervoort07340300	89.2	Gauge	Polk	74.5%	501 of 672	18 min	45 min
558	Batesville LvstkBTSA4	89.1	Cooperative	Independence	71.4%	5 of 7	3.4 h	3 days
559	Prescott 4.7 SWAR-NV-5	89.1	Volunteer	Nevada	71.4%	5 of 7	3.4 h	3 days
560	Yellville 7.3 NWAR-MR-13	89.1	Volunteer	Marion	71.4%	5 of 7	3.4 h	3 days
561	Spring River at Spring Street Bridge at Hardy07069305	89.0	Gauge	Sharp	74.2%	499 of 672	18 min	45 min
562	MagnoliaAGO	88.7	Airport	Columbia	89.0%	449 of 504	4 min	2.7 h
563	Ouachita River at Remmel Dam above Jones Mill07359002	88.0	Gauge	Hot Spring	74.4%	500 of 672	23 min	45 min
564	Hwy 65 Cricket CreekARD32	87.5	Road	Boone	91.4%	461 of 504	27 min	2.2 h
565	Us 67 at White RiverARD22	87.5	Road	Jackson	82.1%	414 of 504	27 min	2.2 h
566	Texarkana Rgnl/WebbTXK	87.4	Airport	Miller	100%	168 of 168	6 min	60 min
567	Hwy 62 HendersonARD31	87.4	Road	Baxter	82.1%	207 of 252	37 min	2.5 h
568	I 555 And I 55 InterchangeARD20	87.3	Road	Crittenden	81.3%	410 of 504	27 min	2.2 h
569	Mena Intermountain MuniMEZ	87.0	Airport	Polk	89.2%	450 of 504	4 min	2.7 h
570	OUACHITA RIVER LAKE OUACHITA AT Blakely Mtn DamBMDA4	86.3	Gauge	Garland	86.3%	145 of 168	25 min	17.5 h
571	Hwy. 21 & Hwy 16 Edwards Junctio AR USARD26	86.2	Road	Newton	78.5%	396 of 504	27 min	2.3 h
572	MorriltonBDQ	86.0	Airport	Conway	89.6%	452 of 504	14 min	17.2 h
573	Roland 4.2 WNWAR-PS-96	85.9	Volunteer	Pulaski	71.4%	5 of 7	10.4 h	3 days
574	I-440 at Rixey RoadARD16	85.6	Road	Pulaski	78.3%	395 of 504	23 min	2.3 h
575	Pine BluffPBOA4	85.3	Cooperative	Jefferson	71.4%	5 of 7	11.7 h	2.5 days
576	I-430 River Bridge Sb Pole 61ARD15	85.0	Road	Pulaski	78.3%	395 of 504	27 min	2.3 h
577	Rye Hill 1.1 EAR-SB-11	84.6	Volunteer	Sebastian	85.7%	6 of 7	25.4 h	35 h
578	Bull Shoals 1SBSHA4	84.6	Cooperative	Marion	57.1%	4 of 7	3 min	34.5 h
579	Conway 5.3 ESEAR-FK-39	84.6	Volunteer	Faulkner	57.1%	4 of 7	26 min	3 days
580	Camden 1CADA4	84.6	Cooperative	Ouachita	57.1%	4 of 7	2.2 h	2 days
581	Bella Vista 2.6 EAR-BT-82	84.6	Volunteer	Benton	57.1%	4 of 7	2.4 h	28 h
582	Marmaduke 5.3 SWAR-GN-32	84.6	Volunteer	Greene	57.1%	4 of 7	2.4 h	2.5 days
583	Bentonville 1.6 NEAR-BT-63	84.6	Volunteer	Benton	57.1%	4 of 7	2.4 h	24 h
584	Citizen station EW6956EW6956	84.5	Citizen	Baxter	62.5%	105 of 168	17 s	4.8 h
585	Citizen station EW6681EW6681	84.4	Citizen	Faulkner	61.9%	104 of 168	19 s	5 h
586	Blue Mountain DamBMOA4	83.7	Cooperative	Yell	57.1%	4 of 7	43 min	3.9 days
587	Nimrod DamNROA4	83.7	Cooperative	Perry	57.1%	4 of 7	2.4 h	4 days
588	Beaver Dam-White R.BEVA4	83.5	Cooperative	Carroll	57.1%	4 of 7	2.7 h	4 days
588	Bull Shoals ObsBLLA4	83.5	Cooperative	Baxter	57.1%	4 of 7	2.7 h	4 days
588	Dequeen 5WNW - DamDQOA4	83.5	Cooperative	Sevier	57.1%	4 of 7	2.7 h	4 days
588	Dam-Saline RiverDROA4	83.5	Cooperative	Howard	57.1%	4 of 7	2.7 h	4 days
588	Dam - Cossatot RvrGLOA4	83.5	Cooperative	Polk	57.1%	4 of 7	2.7 h	4 days
588	Millwood DamMWOA4	83.5	Cooperative	Little River	57.1%	4 of 7	2.7 h	4 days
588	Norfork Dam-Norfork RiverNDOA4	83.5	Cooperative	Baxter	57.1%	4 of 7	2.7 h	4 days
595	Citizen station GW1228GW1228	83.4	Citizen	Jefferson	59.4%	101 of 170	18 s	5.8 h
596	Citizen station GW5900GW5900	83.0	Citizen	Lonoke	59.1%	284 of 480	18 s	2.1 h
597	J Lynn Helms/De QueenDEQ	82.7	Airport	Sevier	100%	168 of 168	6 min	60 min
598	Citizen station GW6231GW6231	82.6	Citizen	Arkansas	58.6%	311 of 530	13 s	2.2 h
599	Citizen station FW4831FW4831	82.4	Citizen	Independence	58.1%	293 of 504	17 s	2.3 h
600	I-430 River Bridge Nb Pole 15ARD14	82.2	Road	Pulaski	70.7%	285 of 403	32 min	2.7 h
601	North Little RockORK	82.1	Airport	Pulaski	89.0%	449 of 504	4 min	2.7 h
602	Citizen station W6NJBW6NJB	82.0	Citizen	Sharp	59.3%	299 of 504	18 s	3 h
603	440 OverpassARD36	81.9	Road	Pulaski	66.8%	337 of 504	27 min	2.3 h
604	Citizen station EW9770EW9770	81.8	Citizen	Saline	57.5%	129 of 224	16 s	6 h
605	Citizen station GW1419GW1419	81.7	Citizen	Greene	56.7%	127 of 224	16 s	5.6 h
606	Citizen station FW2200FW2200	81.5	Citizen	Benton	54.0%	121 of 224	18 s	4.4 h
607	Hwy 5 South East Of Mt. ViewARD25	81.3	Road	Stone	65.0%	328 of 504	27 min	2.3 h
608	I-30 Okolona at The Little Misso AR USARD06	81.2	Road	Clark	64.8%	327 of 504	27 min	2.3 h
608	Hwy 71 Y CityARD13	81.2	Road	Scott	64.8%	327 of 504	27 min	2.3 h
610	Hwy 167 ThorntonARD05	81.2	Road	Calhoun	64.6%	326 of 504	27 min	2.3 h
611	I-49 Bobby Hopper Tunnel SiteARD24	81.1	Road	Washington	64.4%	325 of 504	27 min	2.3 h
612	Fourche Creek - University Ave.FCUA4	81.0	Gauge	Pulaski	100%	168 of 168	20 min	76 min
613	I-630 Woodrow Little RockARD11	81.0	Road	Pulaski	64.0%	323 of 504	27 min	2.3 h
614	I-30 Red RiverARD04	81.0	Road	Miller	63.6%	321 of 504	27 min	2.3 h
615	Hwy 612 SpringdaleARD30	80.8	Road	Benton	64.2%	324 of 504	27 min	2.3 h
616	Citizen station EW8415EW8415	80.8	Citizen	Saline	54.7%	120 of 219	20 s	6.2 h
617	I-430 & I630 Big RockARD12	80.6	Road	Pulaski	65.0%	328 of 504	27 min	2.3 h
618	Citizen station FW0807FW0807	80.6	Citizen	Izard	58.1%	293 of 504	20 s	2.3 h
619	Springfield 0.9 ENEAR-CW-17	80.4	Volunteer	Conway	57.1%	4 of 7	9.4 h	4 days
620	Bentonville 1.8 SWAR-BT-79	80.4	Volunteer	Benton	57.1%	4 of 7	10.4 h	3.5 days
621	Citizen station FW0983FW0983	80.3	Citizen	Greene	54.7%	92 of 168	19 s	9.5 h
622	Citizen station FW5818FW5818	80.2	Citizen	Pulaski	51.7%	116 of 224	19 s	5.2 h
623	I-440 Arkansas River BridgeARD10	80.1	Road	Pulaski	64.8%	327 of 504	27 min	2.3 h
624	Citizen station GW6237GW6237	80.1	Citizen	Arkansas	52.2%	329 of 630	15 s	2 h
625	Texarkana 5.3 SSWAR-ML-3	79.9	Volunteer	Miller	57.1%	4 of 7	12.4 h	3 days
626	Citizen station N5BABN5BAB	79.7	Citizen	Miller	58.9%	297 of 504	19 s	2.6 h
627	Arkadelphia 8.5 ESEAR-CK-8	79.6	Volunteer	Clark	42.8%	3 of 7	26 min	35 h
628	Portland CoopPORA4	79.6	Cooperative	Ashley	42.8%	3 of 7	33 min	2 days
629	Batesville 8.8 NAR-IN-24	79.6	Volunteer	Independence	42.8%	3 of 7	85 min	24 h
630	AR-WS-60AR-WS-60	79.6	COCORAHS	-	42.8%	3 of 7	86 min	24 h
631	VBRA4VBRA4	79.5	DCP	-	42.8%	3 of 7	2.6 h	36 h
632	Hwy 71 at Rxr Overpass De Queen AR USARD08	79.3	Road	Sevier	81.7%	412 of 504	27 min	2.2 h
633	Maumelle 1.3 SSEAR-PS-105	79.1	Volunteer	Pulaski	42.8%	3 of 7	3.4 h	24 h
634	Huntsville 10NHUVA4	79.0	Cooperative	Madison	57.1%	4 of 7	14.4 h	3 days
635	CamdenCDH	78.8	Airport	Calhoun	68.6%	346 of 504	13 min	15 h
636	Springdale MuniASG	78.8	Airport	Washington	63.1%	106 of 168	11 min	10 h
637	Marion 0.5 ESEAR-CT-4	78.5	Volunteer	Crittenden	57.1%	4 of 7	15.4 h	2 days
638	Citizen station FW2142FW2142	78.4	Citizen	Pulaski	50.7%	320 of 630	18 s	3 h
639	El Dorado Hwy 167 & 82ARD03	78.2	Road	Union	64.2%	324 of 504	27 min	2.3 h
640	Ozark 4.6 SAR-FR-3	78.2	Volunteer	Franklin	42.8%	3 of 7	3.4 h	4 days
641	Monticello 3.0 NNWAR-DR-14	78.2	Volunteer	Drew	42.8%	3 of 7	5.4 h	24 h
642	Citizen station FW3334FW3334	78.1	Citizen	Randolph	53.9%	272 of 504	16 s	5.8 h
643	Citizen station FW0173FW0173	78.1	Citizen	Benton	48.6%	109 of 224	16 s	4.9 h
644	White River 2 NW AugustaAUGA4	78.0	Gauge	Woodruff	61.9%	104 of 168	25 min	16 h
645	Citizen station GW1117GW1117	78.0	Citizen	Boone	48.8%	328 of 672	17 s	2.5 h
646	I-40 & Dawson Forrest CityARD34	77.9	Road	St. Francis	63.8%	322 of 504	27 min	2.3 h
647	Citizen station GW1087GW1087	77.9	Citizen	Marion	48.8%	107 of 219	18 s	8 h
648	Alum ForkALFA4	77.9	Cooperative	Saline	42.8%	3 of 7	2.5 h	5 days
649	Little Rock 2.2 NAR-PS-108	77.7	Volunteer	Pulaski	42.8%	3 of 7	6.4 h	24 h
650	Taylor 2.9 WAR-LF-10	77.7	Volunteer	Lafayette	42.8%	3 of 7	6.4 h	37 h
651	Citizen station KE5FMNKE5FMN	77.4	Citizen	Independence	47.9%	105 of 219	16 s	8.5 h
652	Citizen station N5OSIN5OSI	77.1	Citizen	Pope	55.3%	223 of 403	19 s	7 h
653	South Slope of Sugarloaf Mtn at Hot Springs343114930420001	76.4	Gauge	Garland	35.1%	59 of 168	12 min	61 min
654	Music Mtn nr Blacksnake Rd at Hot Springs343045093054901	76.4	Gauge	Garland	35.1%	59 of 168	12 min	65 min
655	AbbottABBA4	76.2	Cooperative	Scott	42.8%	3 of 7	9.7 h	2 days
656	Citizen station GW4032GW4032	76.0	Citizen	Baxter	47.4%	239 of 504	15 s	3.3 h
657	Delight 0.3 NNWAR-PK-1	75.9	Volunteer	Pike	42.8%	3 of 7	10.4 h	24 h
658	Citizen station GW2926GW2926	75.8	Citizen	White	44.2%	99 of 224	18 s	9.2 h
659	Citizen station DW8400DW8400	75.6	Citizen	Pulaski	60.3%	304 of 504	17 s	2.1 h
660	Citizen station EW5286EW5286	75.5	Citizen	Pulaski	61.1%	616 of 1,008	18 s	75 min
661	Citizen station FW5402FW5402	75.4	Citizen	Pulaski	59.5%	100 of 168	16 s	7.8 h
662	Citizen station GW7016GW7016	74.7	Citizen	Sebastian	49.7%	167 of 336	14 s	4 h
663	Citizen station KJ5NVFKJ5NVF	73.5	Citizen	Greene	51.0%	245 of 480	13 s	7.2 h
664	Citizen station DW2612DW2612	73.5	Citizen	Pulaski	39.2%	66 of 168	17 s	14.5 h
665	Citizen station EW4210EW4210	73.1	Citizen	Faulkner	46.4%	104 of 224	18 s	12.8 h
666	Delight 2.3 WNWAR-PK-10	72.1	Volunteer	Pike	42.8%	3 of 7	18.4 h	3.1 days
667	Hwy 412 at Beaver LakeARD29	70.4	Road	Washington	59.9%	302 of 504	27 min	36.7 h
668	Citizen station N5RN-13N5RN-13	64.5	Citizen	Jefferson	27.7%	70 of 252	20 s	3.5 days
669	Citizen station GW5901GW5901	63.4	Citizen	Boone	20.2%	409 of 2,016	18 s	3.6 h
670	Citizen station FW8395FW8395	63.4	Citizen	Sebastian	20.3%	410 of 2,016	19 s	3.6 h
671	Citizen station GW4198GW4198	63.3	Citizen	Marion	19.9%	402 of 2,016	18 s	3.6 h
672	Citizen station GW3475GW3475	63.2	Citizen	Pulaski	19.9%	402 of 2,016	19 s	3.7 h
673	Citizen station GW5898GW5898	62.6	Citizen	Clark	20.2%	408 of 2,016	17 s	3.6 h
674	Citizen station GW7438GW7438	62.1	Citizen	Ouachita	20.2%	409 of 2,016	16 s	3.6 h
675	Citizen station FW0798FW0798	60.8	Citizen	Crawford	20.1%	339 of 1,680	20 s	6.7 h
676	Citizen station GW5913GW5913	60.0	Citizen	Washington	20.5%	415 of 2,016	17 s	3.6 h
677	Citizen station FW3233FW3233	59.5	Citizen	White	20.7%	418 of 2,016	17 s	3.6 h
678	I-40 Big Piney CreekARD19	53.2	Road	Johnson	5.5%	28 of 504	27 min	42.3 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:

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; an airfield is compared with the nearest other airport, never its own report. 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.