Live/Radar/Every radar/KYUX
Single radar / Arizona
Yuma radar KYUX
The weather service radar at Yuma, Arizona, alone: each picture it makes from its own scans, at four tilts from its lowest up, every few minutes. Reflectivity, velocity, storm relative velocity, correlation coefficient and differential reflectivity, the storms it tracks and where they are headed, and how high its beam passes. How to read them.
- Latest scan
- Scanning
- Precipitation mode, pattern 212
- Tilts
- 0.5°, 1.3°, 2.4°, 3.1°
- Stands at
- 32.495°N 114.657°W, 174 ft above sea level
- Reaches
- 286 mi with reflectivity, 186 mi with velocity, 143 mi with storm relative velocity
Storms it tracks
The radar follows each storm cell from scan to scan, measures the way it is moving, and puts it ahead 15 to 60 minutes. Each is drawn on the map above, its track to the hour ahead marked each quarter hour.
| Storm | Where | Moving | In 30 minutes | In 60 minutes | Last forecast off by |
|---|---|---|---|---|---|
| V8 | 99 mi northeast of the radar99 mi from the radar, bearing 47° | Toward the north at 46 mph | 14 mi east northeast of Salome, AZ | 135 mi north northeast of the radar | 0.1 mi |
| N3 | 6 mi east of Blythe, CA78 mi from the radar, bearing 7° | Toward the north northeast at 41 mph | 99 mi north of the radar | - | 1.2 mi |
| G3 | 55 mi east southeast of the radar55 mi from the radar, bearing 104° | Toward the north at 53 mph | 52 mi east northeast of the radar | 62 mi northeast of the radar | 1 mi |
| P6 | 49 mi east of the radar50 mi from the radar, bearing 97° | Toward the north at 51 mph | 52 mi east northeast of the radar | - | 1.3 mi |
| L6 | 96 mi north of the radar96 mi from the radar, bearing 5° | Toward the northwest at 54 mph | 117 mi north of the radar | 140 mi north of the radar | 0.3 mi |
| S4 | 14 mi north of Wellton, AZ39 mi from the radar, bearing 48° | Toward the north at 53 mph | 60 mi north northeast of the radar | 6 mi east southeast of Quartzsite, AZ | 0.2 mi |
| S9 | 76 mi east southeast of the radar76 mi from the radar, bearing 121° | Toward the north at 47 mph | - | - | 4.8 mi |
| Q3 | 87 mi west of the radar88 mi from the radar, bearing 272° | Toward the north at 37 mph | 89 mi west northwest of the radar | 93 mi west northwest of the radar | 0.9 mi |
| U4 | 8 mi south southwest of Seeley, CA64 mi from the radar, bearing 282° | Toward the north at 38 mph | - | - | 3.7 mi |
| O4 | 100 mi southeast of the radar100 mi from the radar, bearing 132° | Toward the north at 68 mph | 82 mi east southeast of the radar | 74 mi east of the radar | 0.7 mi |
| Z3 | 91 mi southeast of the radar91 mi from the radar, bearing 128° | Toward the north at 59 mph | 77 mi east southeast of the radar | - | 1.2 mi |
| R7 | 13 mi north northwest of Blythe, CA89 mi from the radar, bearing 358° | Toward the north at 51 mph | 114 mi north of the radar | - | 1.6 mi |
| S8 | 127 mi southeast of the radar127 mi from the radar, bearing 138° | First seen this scan | - | - | 0 mi |
| R8 | 78 mi east northeast of the radar78 mi from the radar, bearing 61° | Toward the north at 60 mph | - | - | 2.3 mi |
| N1 | 66 mi north northeast of the radar66 mi from the radar, bearing 27° | Toward the north northwest at 55 mph | 4 mi north of Quartzsite, AZ | 2 mi east southeast of Big River, CA | 0.5 mi |
| O0 | 58 mi north northeast of the radar58 mi from the radar, bearing 13° | Toward the north at 49 mph | 10 mi east northeast of Blythe, CA | - | 2 mi |
| G5 | 52 mi west of the radar52 mi from the radar, bearing 268° | First seen this scan | - | - | 0 mi |
| G0 | 14 mi south southeast of Blythe, CA66 mi from the radar, bearing 8° | Toward the north at 40 mph | 9 mi northeast of Blythe, CA | - | 2 mi |
| W2 | 97 mi north northwest of the radar97 mi from the radar, bearing 338° | Toward the north northwest at 74 mph | 133 mi north northwest of the radar | 169 mi north northwest of the radar | 0.5 mi |
| C1 | 14 mi west of Borrego Springs, CA125 mi from the radar, bearing 296° | Toward the north at 53 mph | 6 mi north northeast of Anza, CA | 6 mi west of Morongo Valley, CA | 0.1 mi |
| J6 | 12 mi west northwest of Salome, AZ104 mi from the radar, bearing 28° | Toward the north at 70 mph | 133 mi north northeast of the radar | - | 1.3 mi |
| H7 | 60 mi west southwest of the radar60 mi from the radar, bearing 257° | Toward the north northeast at 41 mph | 8 mi south southwest of Calexico, CA | 5 mi northwest of Holtville, CA | 0.9 mi |
| S2 | 116 mi southeast of the radar116 mi from the radar, bearing 136° | First seen this scan | - | - | 0 mi |
| Q1 | 44 mi northeast of the radar44 mi from the radar, bearing 41° | Toward the north at 53 mph | 64 mi north northeast of the radar | 5 mi north northwest of Quartzsite, AZ | 0.5 mi |
| B7 | 70 mi east southeast of the radar70 mi from the radar, bearing 116° | Toward the north at 53 mph | 66 mi east of the radar | 71 mi east northeast of the radar | 0.6 mi |
| R9 | 83 mi east northeast of the radar83 mi from the radar, bearing 74° | Toward the north at 52 mph | 94 mi east northeast of the radar | 112 mi northeast of the radar | 0.8 mi |
| E2 | 49 mi north northeast of the radar50 mi from the radar, bearing 31° | Toward the north at 36 mph | 66 mi north northeast of the radar | - | 1.4 mi |
| M8 | 10 mi southwest of Indian Wells, CA129 mi from the radar, bearing 307° | First seen this scan | - | - | 0 mi |
| Z0 | 14 mi west northwest of Seeley, CA77 mi from the radar, bearing 288° | First seen this scan | - | - | 0 mi |
| F5 | 41 mi southwest of the radar41 mi from the radar, bearing 234° | Toward the northeast at 25 mph | - | - | 3.6 mi |
| H6 | 70 mi west southwest of the radar70 mi from the radar, bearing 246° | Toward the northeast at 41 mph | 51 mi west southwest of the radar | - | 1.5 mi |
| S7 | 13 mi west southwest of Blythe, CA75 mi from the radar, bearing 353° | Toward the north at 56 mph | 101 mi north of the radar | - | 2 mi |
| Y2 | 5 mi north northwest of Quartzsite, AZ89 mi from the radar, bearing 15° | Toward the north northwest at 60 mph | - | - | 2.6 mi |
| A6 | 13 mi east northeast of Quartzsite, AZ94 mi from the radar, bearing 23° | First seen this scan | - | - | 0 mi |
How high it sees
The beam leaves the radar tilted up and the earth curves away under it, so the farther from the radar, the higher it passes. Rain or snow falling under the lowest beam is not seen: far from the radar, shallow snow and drizzle can fall unseen. The heights are the standard ones, the air bending the beam as the weather service’s own rule takes it.
| Tilt | 25 mi | 50 mi | 100 mi | 150 mi | 200 mi |
|---|---|---|---|---|---|
| 0.5° | 1,500 ft | 3,600 ft | 9,600 ft | 18,200 ft | 29,200 ft |
| 1.3° | 3,300 ft | 7,200 ft | 17,000 ft | 29,300 ft | 44,000 ft |
| 2.4° | 5,800 ft | 12,300 ft | 27,200 ft | 44,500 ft | 64,400 ft |
| 3.1° | 7,500 ft | 15,600 ft | 33,600 ft | 54,200 ft | 77,400 ft |
| Width | 2,200 ft | 4,400 ft | 8,800 ft | 13,100 ft | 17,500 ft |
How to read the pictures
- Reflectivity
- How strongly rain, snow and hail send the pulse back, in dBZ: the stronger, the heavier.
- Velocity
- The wind along the beam, in mph: green toward the radar, red away. Where the two meet tightly, the wind turns.
- Storm relative velocity
- The same wind with the storms’ own motion taken away, so a storm’s turning stands out: a tight pair of green and red is a rotating storm.
- Correlation coefficient
- How alike the returns of one pulse are, 0 to 1: rain and snow near 1, hail and melting snow lower, and debris a tornado lifts well below 0.8.
- Differential reflectivity
- How much wider than tall what falls is, in dB: large flat raindrops read high, hail and dry snow near 0.
Each picture is one tilt of one scan, as the radar sent it: its lowest tilt first, then three above it, the angles its scan pattern sets. A picture at a higher tilt sees higher into a storm, and farther over the ground at each distance. Press a point on the map to read the value there.
As data: /radar/now.json?show=sref&site=KYUX, the times of its frames, and /radar/s/KYUX/storms.json, the storms it tracks.