Storm Station

Beside a road

RWIS network, identified by the register

Identifier
I40ST259
Latitude
35.45507 N
Longitude
95.64548 W
Elevation
-
Rank
-
Observed
3:03 AMCDT, 8 minutes ago
Air temperature
69F
Wind
6mph
Gust
6mph
Wind direction
219°
Pavement temperature
69F
Temperature under the road
128F

On the radar over I-40 & ChecotahReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture

Beside a road

Drawn as the kind of place it stands at. 19 instruments in Oklahoma stand at one.

Station charts

I-40 & Checotah Report

Rank
-
Days reported, 30 days
0 of 30
Time to reach Storm Station
6 min9 in 10 within 10 min
Chart of the 838 ranked stations in Oklahoma on Oct 11 by the share of their scheduled reports received in Storm Station's own record, up to 7 days, in tenths: 0 to 9 per cent, 9; 10 to 19 per cent, 22; 20 to 29 per cent, 4; 30 to 39 per cent, 4; 40 to 49 per cent, 38; 50 to 59 per cent, 71; 60 to 69 per cent, 8; 70 to 79 per cent, 136; 80 to 89 per cent, 73; 90 to 99 per cent, 305; 100 per cent, 168.WHERE IT RANKS IN OKLAHOMA, Oct 11PER CENT OF SCHEDULED REPORTS RECEIVEDIN STORM STATION'S OWN RECORD, UP TO 7 DAYS1101000 to 9910 to 192220 to 29430 to 39440 to 493850 to 597160 to 69870 to 7913680 to 897390 to 99305100168STATIONS, LOG SCALE
The ranking these charts were drawn from, as tables
Share of scheduled reports receivedStations
100%168
90 to 99%305
80 to 89%73
70 to 79%136
60 to 69%8
50 to 59%71
40 to 49%38
30 to 39%4
20 to 29%4
10 to 19%22
0 to 9%9

Station report

I-40 & Checotah, in 2 sheets

Drawn from the register, in the manner of the Field Book, and opened beside the plates that explain each part of it.

1The sun

Contents

On Oct 11 the noon sun stands 47 degrees above the horizon at 35.46 N, and the day is 11 h 19 min long. Level ground there takes 74 per cent of the noon sunlight a surface facing the sun would.

Elevation of the noon sun at I-40 & Checotah, angles true: on Oct 11 it stands 47 degrees above the horizon, against 78 at the June solstice, 55 at the equinoxes and 31 at the December solstice; the day is 11 h 19 min long.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT I40ST259FIG. E THE SUN AT I-40 & CHECOTAHELEVATION LOOKING WEST, SOUTH TO THE LEFT: THE NOON SUN ON THE DAY OF THE REPORT, AND AT THE SOLSTICES AND EQUINOXES; ANGLES TRUETHE STATIONJUNE SOLSTICE 78°EQUINOXES 55°DECEMBER SOLSTICE 31°OCT 11, 47°SOUTHANGLES TRUE; THE RAYS ARE OF ONE LENGTH AND DRAW DIRECTION ONLYDAY LENGTH 11 H 19 MINLEVEL GROUND TAKES 74 PER CENT OF THE NOON SUN A FACING SURFACE WOULDLATITUDE 35.46 N; THE SUN'S DECLINATION -7.2°TITLEI-40 & Checotah, the sunSTATION REPORT · RWIS I40ST259TYPEELEVATIONSCALEANGLES TRUEREVFROM THE REGISTER SHEET 1 of 2DATE2026-10-11IDSR-I40ST259-1DRAWN AS linework on paperSOURCES FB-ENG-007

From the Field Book

2The instrument

Contents

A road weather station. Its sensors, as its network builds them.

Elevation of a road weather station, I-40 & Checotah, each sensor drawn and labelled with what it read: no reading in the last day.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT I40ST259FIG. F THE INSTRUMENTELEVATION OF A ROAD WEATHER STATION, EACH SENSOR WITH WHAT IT READTHE ROAD, IN SECTIONPAVEMENT SENSOR, SET IN THE ROAD-PROBE UNDER THE ROAD-AIR TEMPERATURE ON THE TOWER-WIND AT THE TOP OF THE TOWER-SCHEMATIC; THE SPACING BETWEEN SENSORS IS NOT TO SCALETITLEI-40 & Checotah, the instrumentSTATION REPORT · RWIS I40ST259TYPEELEVATIONSCALESCHEMATICREVFROM THE REGISTER SHEET 2 of 2DATE2026-10-11IDSR-I40ST259-2DRAWN AS linework on paperSOURCES FB-INS-001

From the Field Book

The instrumentWhat an instrument is FB-INS-001Stevenson screen and siting FB-INS-009

What it seesLapse rates and stability FB-ENG-005Water vapour as a gas FB-ENG-011Blizzard FB-EVT-081Ice storm FB-EVT-084Heat wave and heat dome FB-EVT-130Fire weather FB-EVT-139High wind FB-EVT-150Humidity variables FB-WAT-002Fog types FB-WAT-020

Near I-40 & Checotah

Gauges

Weather instruments

Places