Live/Radar/Every radar/KCLE
Single radar / Ohio
Cleveland radar KCLE
The weather service radar at Cleveland, Ohio, 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 215
- Tilts
- 0.5°, 1.3°, 2.4°, 3.1°
- Stands at
- 41.413°N 81.860°W, 763 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 |
|---|---|---|---|---|---|
| P0 | 33 mi northwest of the radar33 mi from the radar, bearing 311° | Toward the northeast at 61 mph | 39 mi north of the radar | - | 1.3 mi |
| S0 | 60 mi north northwest of the radar60 mi from the radar, bearing 332° | Toward the east northeast at 62 mph | 64 mi north of the radar | 82 mi north northeast of the radar | 0.6 mi |
| W0 | 13 mi east southeast of Grosse Pointe, MI75 mi from the radar, bearing 325° | Toward the east northeast at 58 mph | 78 mi north northwest of the radar | 90 mi north of the radar | 1 mi |
| T0 | 45 mi north northwest of the radar45 mi from the radar, bearing 337° | Toward the east northeast at 61 mph | 54 mi north of the radar | 75 mi north northeast of the radar | 0.2 mi |
| G0 | 4 mi east of Village of Grosse Pointe Shores, MI85 mi from the radar, bearing 326° | Toward the east northeast at 61 mph | 14 mi east of Algonac, MI | 94 mi north of the radar | 0.5 mi |
| A1 | 46 mi northwest of the radar46 mi from the radar, bearing 312° | First seen this scan | - | - | 0 mi |
| Y0 | 71 mi northwest of the radar71 mi from the radar, bearing 318° | Toward the northeast at 58 mph | 74 mi north northwest of the radar | 85 mi north of the radar | 0.9 mi |
| M0 | 62 mi north of the radar62 mi from the radar, bearing 355° | Toward the east northeast at 69 mph | 76 mi north northeast of the radar | 100 mi northeast of the radar | 0.2 mi |
| Z0 | 52 mi north northwest of the radar52 mi from the radar, bearing 347° | Toward the east northeast at 43 mph | 60 mi north of the radar | - | 1.6 mi |
| R0 | 44 mi north of the radar44 mi from the radar, bearing 354° | Toward the east northeast at 66 mph | 60 mi north northeast of the radar | 86 mi northeast of the radar | 0.5 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=KCLE, the times of its frames, and /radar/s/KCLE/storms.json, the storms it tracks.