[ RASP UK Forecast (Stratus) ]




BLIP Quality Check

To help understand if the RASP forecast is matching the real world, an experimental script has been put together that will compare a RASP 'spot' forecast against a METAR observation (a real-world airfield met observation).

These observations are produced hourly or so.

The following table is a summary for the UK, using the script outlined below the table and map. The table is produced from 09:00 to 18:00 on the hour and every half hour during UK daylight hours.


This report: 07:11:22 21/06/2018 for this map view. This run created in 20.89 secs


Map Key
Green marker means inside thresholds (one metric outside is shown light green).
Yellow marker means two metrics outside thresholds.
Red marker means three metrics outside thresholds.
Blue marker means report not available or similar.

Notes and Observations
EGSC (B) Cambridge A/P - METAR report more than six hours old (13 hours) for EGSC - report not usable.
EGNC (C) Carlisle A/P - METAR report more than six hours old (401 hours) for EGNC - report not usable.
EGEC (L) Cambel Town - METAR report more than six hours old (14 hours) for EGEC - report not usable.
EGUO (R) Colerne - METAR report more than six hours old (2205 hours) for EGUO - report not usable.
EGBE (8) Coventry A/P - METAR report more than six hours old (8104 hours) for EGBE - report not usable.
EGBJ () Staverton A/P - METAR report more than six hours old (12 hours) for EGBJ - report not usable.
EGOP (7) Pembrey Sands Stn - METAR report more than six hours old (20 hours) for EGOP - report not usable.

Table Key
Highlight thresholds: Wind is 30° - Wind Speed is 7 kts - Temperature is 3° C - Cloudbase is 1500 feet - Pressure is 1.6 mb (not reported upon)

Table Averages
Difference Averages: Dry: 0.65° C - Wet: 0.42° C - Wind Speed: -3.67 Knots (RASP High) - Wind Deviation: 24.1 Degrees - Pressure: -0.5 mb
Difference calculations based on actual minus the forecast.
Averages that are greater than +/- 2 Celcius indicates forecast widely differs from actuals.

MarkLocationTime
RASP
METAR
Dry
Temp
° C
RASP
METAR
Diff
° C
Dew Pt
° C
RASP
METAR
Diff
° C
Cloud
Base
ft
RASP
METAR
Diff
ft
Pressure
mb
RASP
METAR
Diff
mb
Wind
Dir °
RASP
METAR
Diff
°
Wind
Speed
kts
RASP
METAR
Diff
kts
ARAF Wattisham
52.1239N 0.9573W
700
0650
10.74
11
0.26
5.73
5
-0.73
2264
2400
136
1021.8
1021
-0.8
314
310
4
17
13
-4
RAF Culdrose
50.0843N -5.2571E
700
0650
12.37
12
-0.37
8.37
8
-0.37
1858
1600
-258
1027.4
1027
-0.4
9
020
11
16
11
-5
FExeter A/P
50.7372N -3.4058E
700
0650
10.65
10
-0.65
6.97
7
0.03
1682
1200
-482
1026.6
1026
-0.6
349
320
29
11
5
-6
RAF Odiham
51.2391N -0.9450E
700
0650
9.88
11
1.12
6.57
6
-0.57
1714
2000
286
1024.1
1024
-0.1
337
330
7
13
10
-3
HGatwick A/P
51.1481N -0.1903E
700
0650
10.94
13
2.06
6.46
6
-0.46
2094
2800
706
1023.8
1023
-0.8
333
330
3
11
12
1
IRAF Wittering
52.6114N -0.4612E
700
0656
10.06
11
0.94
5.73
6
0.27
2047
2000
-47
1022.9
1022
-0.9
311
300
11
16
12
-4
RAF Fairford
51.68135N -1.79109E
700
0656
8.85
10.8
1.95
6.35
5.3
-1.05
1364
2200
836
1025.0
1024
-1
330
340
10
13
6
-7
JRAF Shawbury
52.7947N -2.6647E
700
0650
9.59
10
0.41
6.16
5
-1.16
1744
2000
256
1025.0
1025
0
317
250
67
14
7
-7
KRAF Benson
51.6203N -1.0987E
700
0650
9.73
11
1.27
6.39
6
-0.39
1708
2000
292
1024.1
1024
-0.1
329
290
39
15
5
-10
MRAF Valley
53.2527N -4.5365E
700
0650
10.75
12
1.25
6.02
6
-0.02
2004
2400
396
1026.7
1026
-0.7
334
320
14
17
15
-2
NLydd A/P
50.9561N 0.9392W
700
0650
12.35
13
0.65
7.21
8
0.79
2148
2000
-148
1022.7
1022
-0.7
340
330
10
15
13
-2
ODundee A/P
56.4525N -3.0258E
700
0650
8.55
11
2.45
5.14
6
0.86
1647
2000
353
1022.3
1022
-0.3
300
270
30
9
11
2
PRAF Kinloss
57.6456N -3.5635E
700
0650
8.47
9
0.53
5.82
6
0.18
1258
1200
-58
1022.6
1021
-1.6
299
290
9
13
16
3
QNorwich A/P
52.6333N 1.3000W
700
0650
10.95
12
1.05
5.50
6
0.5
2343
2400
57
1020.8
1020
-0.8
307
300
7
17
13
-4
SLuton A/P
51.8747N -0.3683E
700
0650
9.78
11
1.22
6.30
6
-0.3
2001
2000
-1
1023.3
1023
-0.3
323
310
13
19
13
-6
TCardiff Intl A/P
51.3967N -3.3433E
700
0650
10.73
9
-1.73
6.12
8
1.88
2047
400
-1647
1026.3
1026
-0.3
344
270
74
13
4
-9
UNewcastle A/P
55.0375N -1.6917E
700
0650
8.74
9
0.26
3.85
4
0.15
2255
2000
-255
1021.4
1021
-0.4
315
290
25
16
11
-5
VBelfast / Aldergrove A/P
54.6633N -6.2258E
700
0650
9.01
9
-0.01
5.54
7
1.46
1690
800
-890
1027.4
1027
-0.4
320
310
10
10
7
-3
WManchester A/P
53.3537N -2.2750E
700
0650
10.30
12
1.7
4.62
5
0.38
2595
2800
205
1024.4
1024
-0.4
315
300
15
12
13
1
XGlasgow A/P
55.8719N -4.4331E
700
0650
8.16
10
1.84
4.90
5
0.1
1528
2000
472
1025.5
1024
-1.5
307
280
27
8
8
0
YEdinburgh A/P
55.9500N -3.3500E
700
0650
8.10
9
0.9
4.08
6
1.92
1875
1200
-675
1023.6
1023
-0.6
301
260
41
11
6
-5
ZHeathrow A/P
51.4775N -0.4614E
700
0650
11.77
12
0.23
5.17
7
1.83
2816
2000
-816
1024.0
1024
0
330
310
20
12
8
-4
1Southampton A/P
50.9499N -1.3585E
700
0650
10.70
11
0.3
6.71
6
-0.71
1773
2000
227
1024.8
1024
-0.8
345
330
15
12
6
-6
2Leeds A/P
53.8618N -1.6653E
700
0650
9.16
9
-0.16
3.66
4
0.34
2742
2000
-742
1022.5
1022
-0.5
312
300
12
15
17
2
3Dublin A/P
53.4215N -6.2977E
800
0700
9.91
8
-1.91
5.89
6
0.11
1886
800
-1086
1029.1
1028
-1.1
317
290
27
13
11
-2
Stornaway A/P
58.2156N -6.3311E
700
0650
9.48
10
0.52
5.41
7
1.59
1784
1200
-584
1024.4
1023
-1.4
312
310
2
17
13
-4
4Tiree
56.5000N -6.8828E
700
0650
10.90
10
-0.9
6.20
6
-0.2
1988
1600
-388
1026.5
1026
-0.5
329
330
1
20
17
-3
5Benbecula
57.4811N -7.3628E
700
0650
10.60
11
0.4
6.05
6
-0.05
1907
2000
93
1025.9
1026
0.1
321
340
19
20
16
-4
6Ronaldsway A/P
54.0853N -4.6320E
700
0650
11.16
10
-1.16
6.13
6
-0.13
2150
1600
-550
1026.1
1026
-0.1
330
300
30
20
9
-11
RAF Boulmer
55.4209N -1.6012E
700
0650
9.36
10
0.64
5.25
4
-1.25
1757
2400
643
1021.0
1021
0
323
280
43
20
13
-7
Aberdeen A/P
57.2049N -2.2053E
700
0650
8.45
9
0.55
5.75
6
0.25
1483
1200
-283
1020.1
1020
-0.1
319
300
19
22
15
-7
Humberside A/P
53.5744N -0.3508E
700
0650
9.24
11
1.76
4.68
6
1.32
2054
2000
-54
1021.6
1021
-0.6
309
280
29
17
14
-3
Islay A/P
55.6814N -6.2498E
700
0650
10.24
11
0.76
5.32
8
2.68
2164
1200
-964
1026.7
1026
-0.7
328
320
8
15
15
0
Eglinton A/P
55.0428N -7.1611E
700
0650
9.12
11
1.88
6.06
8
1.94
1473
1200
-273
1028.6
1028
-0.6
322
190
132
8
4
-4
Doncaster A/P
53.4747N -1.0044E
700
0650
10.37
13
2.63
4.41
7
2.59
2514
2400
-114
1022.8
1023
0.2
311
290
21
13
12
-1
0RNAS Yeovilton
51.0063N -2.6428E
700
0650
10.17
11
0.83
6.68
8
1.32
1568
1200
-368
1025.9
1025
-0.9
345
310
35
10
7
-3


The script is a bit slow, so sometimes the results may not be available as an auto-generated static view.

If this happens, click here to dynamically re-generate the table as a separate page.

If there is a problem with the output, click here to get a copy of the last generated text table.


The following plot will show a running view of the percentage of measures as correct between the forecast and the RASP prediction. Normally for the whole of the UK, 85% or hgher indicates RASP is close enough and can be relied upon.

Regional  Atmospheric  Soaring  Prediction
BLIPMAP FORECASTS For Great Britain
The Webmaster makes no representations or warranties, expressed or implied, as to the accuracy of the information held herein or its fitness for any purpose whatsoever. In no event will the Webmaster be held liable for any direct, indirect, special incidental or consequential damages arising out of the use of the information held on this server.
BLIPMAP = Boundary Layer Information Prediction MAP - Created by Dr. John W. (Jack) Glendening, Meteorologist