Storm Station
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Beside a road

RWIS network, identified by the register

Identifier
01_69_0021
Latitude
36.73183 N
Longitude
88.66663 W
Elevation
-
Rank
-
Observed
12:58 AMCDT, 24 minutes ago
Air temperature
49.8F
Dew point
46.8F
Pavement temperature
55.2F

On the radar over I-69 at mile 21.7ReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture

Beside a road

Drawn as the kind of place it stands at. 44 instruments in Kentucky stand at one.

Station charts

I-69 at mile 21.7 Report

Rank
-
Days reported, 30 days
0 of 30
Time to reach Storm Station
9 min9 in 10 within 13 min
Against its reference, 30 days
+2.0 °Fwarmer than the airport station KM25, 5.1 miles away, on average over 584 readings; typical difference 2.6 °F

Against its reference: each temperature this station reports is compared with the nearest airport or climate reference station that reported within half an hour, up to 15 miles away. The figure is its reading less the reference's, on average, as both were reported; the typical difference is the root mean square. The difference in height is shown where both heights are known.

Chart of the 697 ranked stations in Kentucky on Oct 17 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, 6; 10 to 19 per cent, 16; 20 to 29 per cent, 4; 30 to 39 per cent, 1; 40 to 49 per cent, 35; 50 to 59 per cent, 64; 60 to 69 per cent, 9; 70 to 79 per cent, 48; 80 to 89 per cent, 54; 90 to 99 per cent, 196; 100 per cent, 264.WHERE IT RANKS IN KENTUCKY, Oct 17PER CENT OF SCHEDULED REPORTS RECEIVEDIN STORM STATION'S OWN RECORD, UP TO 7 DAYS1101000 to 9610 to 191620 to 29430 to 39140 to 493550 to 596460 to 69970 to 794880 to 895490 to 99196100264STATIONS, LOG SCALE
The ranking these charts were drawn from, as tables
Share of scheduled reports receivedStations
100%264
90 to 99%196
80 to 89%54
70 to 79%48
60 to 69%9
50 to 59%64
40 to 49%35
30 to 39%1
20 to 29%4
10 to 19%16
0 to 9%6

Station report

I-69 at mile 21.7, 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 17 the noon sun stands 44 degrees above the horizon at 36.73 N, and the day is 11 h 03 min long. Level ground there takes 69 per cent of the noon sunlight a surface facing the sun would.

Elevation of the noon sun at I-69 at mile 21.7, angles true: on Oct 17 it stands 44 degrees above the horizon, against 77 at the June solstice, 53 at the equinoxes and 30 at the December solstice; the day is 11 h 03 min long.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT 01_69_0021FIG. E THE SUN AT I-69 AT MILE 21.7ELEVATION 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 77°EQUINOXES 53°DECEMBER SOLSTICE 30°OCT 17, 44°SOUTHANGLES TRUE; THE RAYS ARE OF ONE LENGTH AND DRAW DIRECTION ONLYDAY LENGTH 11 H 03 MINLEVEL GROUND TAKES 69 PER CENT OF THE NOON SUN A FACING SURFACE WOULDLATITUDE 36.73 N; THE SUN'S DECLINATION -9.4°TITLEI-69 at mile 21.7, the sunSTATION REPORT · RWIS 01_69_0021TYPEELEVATIONSCALEANGLES TRUEREVFROM THE REGISTER SHEET 1 of 2DATE2026-10-17IDSR-01690021-1DRAWN 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-69 at mile 21.7, each sensor drawn and labelled with what it read: no reading in the last day.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT 01_69_0021FIG. 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-69 at mile 21.7, the instrumentSTATION REPORT · RWIS 01_69_0021TYPEELEVATIONSCALESCHEMATICREVFROM THE REGISTER SHEET 2 of 2DATE2026-10-17IDSR-01690021-2DRAWN 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-084Snow squall FB-EVT-086Heat 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-69 at mile 21.7

Gauges

Weather instruments

Places