[ 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.

A spatial map of the reports can be found here.


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 higher indicates RASP is close enough and can be relied upon.


This report: 17:42:05 22/01/2020 for this map view. This run created in 62.83 secs

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
1730
1720
3.02
6
2.98
2.92
6
3.08
238
0
-238
1036.4
1036
-0.4
353
350
3
6
3
-3
BCambridge A/P
52.2050N 0.1750W
1730
1720
2.85
7
4.15
2.75
6
3.25
69
400
331
1037.0
1037
0
349
100
111
3
1
-2
RAF Culdrose
50.0843N -5.2571E
1700
1650
6.25
7
0.75
5.70
7
1.3
416
0
-416
1034.7
1034
-0.7
68
070
2
11
10
-1
FExeter A/P
50.7372N -3.4058E
1730
1720
5.36
7
1.64
5.29
6
0.71
142
400
258
1035.7
1036
0.3
37
050
13
6
6
0
RAF Odiham
51.2391N -0.9450E
1700
1650
3.86
6
2.14
3.75
6
2.25
355
0
-355
1036.0
1036
0
57
010
47
7
3
-4
IRAF Wittering
52.6114N -0.4612E
1700
1650
4.27
7
2.73
4.21
7
2.79
244
0
-244
1036.5
1036
-0.5
324
220
104
4
2
-2
JRAF Shawbury
52.7947N -2.6647E
1700
1650
6.60
8
1.4
6.52
8
1.48
302
0
-302
1037.0
1037
0
346
360
14
6
6
0
KRAF Benson
51.6203N -1.0987E
1730
1720
3.94
7
3.06
3.85
7
3.15
326
0
-326
1036.3
1036
-0.3
33
030
3
6
4
-2
LCambel Town
55.4372N -5.6864E
1700
1650
7.12
9
1.88
7.05
9
1.95
163
0
-163
1037.0
1037
0
274
270
4
12
10
-2
MRAF Valley
53.2527N -4.5365E
1700
1650
8.01
8
-0.01
7.46
7
-0.46
251
400
149
1037.7
1037
-0.7
48
040
8
7
3
-4
NLydd A/P
50.9561N 0.9392W
1730
1720
4.83
7
2.17
3.99
7
3.01
413
0
-413
1036.1
1036
-0.1
16
080
64
6
9
3
ODundee A/P
56.4525N -3.0258E
1730
1720
7.70
9
1.3
6.85
8
1.15
497
400
-97
1034.6
1034
-0.6
264
280
16
11
5
-6
PRAF Kinloss
57.6456N -3.5635E
1700
1650
7.76
11
3.24
6.41
9
2.59
750
800
50
1033.3
1034
0.7
218
230
12
15
5
-10
QNorwich A/P
52.6333N 1.3000W
1730
1720
3.30
8
4.7
3.17
7
3.83
118
400
282
1036.5
1036
-0.5
282
230
52
3
2
-1
SLuton A/P
51.8747N -0.3683E
1730
1720
3.26
6
2.74
3.16
6
2.84
472
0
-472
1036.2
1036
-0.2
13
VRB
0
6
2
-4
TCardiff Intl A/P
51.3967N -3.3433E
1730
1720
6.10
8
1.9
6.02
7
0.98
159
400
241
1036.4
1036
-0.4
54
080
26
8
7
-1
UNewcastle A/P
55.0375N -1.6917E
1730
1720
5.01
6
0.99
4.12
6
1.88
705
0
-705
1036.2
1036
-0.2
270
260
10
11
5
-6
VBelfast / Aldergrove A/P
54.6633N -6.2258E
1730
1720
6.01
8
1.99
5.94
8
2.06
243
0
-243
1037.7
1037
-0.7
116
150
34
4
2
-2
WManchester A/P
53.3537N -2.2750E
1730
1720
6.74
8
1.26
6.69
8
1.31
247
0
-247
1037.1
1037
-0.1
182
260
78
2
2
0
XGlasgow A/P
55.8719N -4.4331E
1730
1720
7.31
10
2.69
6.94
9
2.06
285
400
115
1036.1
1036
-0.1
248
230
18
7
6
-1
YEdinburgh A/P
55.9500N -3.3500E
1730
1720
8.50
10
1.5
7.45
9
1.55
618
400
-218
1035.5
1035
-0.5
244
240
4
11
8
-3
ZHeathrow A/P
51.4775N -0.4614E
1730
1720
4.04
8
3.96
3.94
8
4.06
116
0
-116
1036.5
1037
0.5
67
050
17
4
4
0
1Southampton A/P
50.9499N -1.3585E
1730
1720
4.58
7
2.42
4.42
6
1.58
136
400
264
1036.1
1036
-0.1
52
040
12
7
1
-6
2Leeds A/P
53.8618N -1.6653E
1730
1720
5.82
7
1.18
4.78
6
1.22
1060
400
-660
1036.3
1036
-0.3
295
270
25
10
6
-4
3Dublin A/P
53.4215N -6.2977E
1730
1730
6.90
9
2.1
6.85
8
1.15
244
400
156
1037.9
1038
0.1
69
330
99
5
4
-1
Stornaway A/P
58.2156N -6.3311E
1730
1720
8.56
9
0.44
6.96
7
0.04
783
800
17
1031.8
1033
1.2
224
240
16
15
10
-5
4Tiree
56.5000N -6.8828E
1730
1720
8.79
9
0.21
7.87
9
1.13
444
0
-444
1035.2
1036
0.8
221
270
49
16
6
-10
5Benbecula
57.4811N -7.3628E
1730
1720
8.54
9
0.46
7.37
8
0.63
582
400
-182
1033.1
1034
0.9
229
220
9
19
10
-9
6Ronaldsway A/P
54.0853N -4.6320E
1730
1720
6.86
9
2.14
6.77
8
1.23
95
400
305
1038.0
1037
-1
10
230
140
5
7
2
RAF Boulmer
55.4209N -1.6012E
1700
1650
7.61
9
1.39
6.21
7
0.79
740
800
60
1035.6
1035
-0.6
235
250
15
6
3
-3
Aberdeen A/P
57.2049N -2.2053E
1730
1720
8.58
10
1.42
7.18
8
0.82
1091
800
-291
1033.5
1034
0.5
243
VRB
0
10
1
-9
Birmingham A/P
52.4602N -1.7576E
1730
1720
5.58
9
3.42
5.49
8
2.51
394
400
6
1036.6
1036
-0.6
28
170
142
2
2
0
Humberside A/P
53.5744N -0.3508E
1730
1720
2.77
7
4.23
2.65
7
4.35
183
0
-183
1036.5
1036
-0.5
294
210
84
4
8
4
Staverton A/P
51.8923N -2.1608E
1730
1720
5.20
8
2.8
5.13
8
2.87
153
0
-153
1036.9
1036
-0.9
21
000
21
5
0
-5
Islay A/P
55.6814N -6.2498E
1730
1720
7.02
9
1.98
6.82
9
2.18
180
0
-180
1037.0
1037
0
245
250
5
12
5
-7
Eglinton A/P
55.0428N -7.1611E
1730
1720
6.66
10
3.34
6.25
9
2.75
312
400
88
1037.5
1037
-0.5
235
240
5
7
6
-1
Southend A/P
51.5714N 0.6956W
1730
1720
3.30
6
2.7
3.11
6
2.89
117
0
-117
1036.4
1036
-0.4
355
000
5
6
0
-6
Biggin Hill A/P
51.3308N 0.0325W
1730
1720
3.00
6
3
2.86
6
3.14
516
0
-516
1035.9
1036
0.1
48
050
2
5
3
-2
London City A/P
51.5053N 0.0553W
1730
1720
3.55
7
3.45
3.39
7
3.61
96
0
-96
1036.7
1037
0.3
59
090
31
3
3
0
East Midlands A/P
52.8311N -1.3281E
1730
1720
4.75
8
3.25
4.69
7
2.31
223
400
177
1036.8
1036
-0.8
279
140
139
2
5
3
Doncaster A/P
53.4747N -1.0044E
1730
1720
5.41
5
-0.41
4.86
5
0.14
270
0
-270
1036.6
1037
0.4
329
120
151
6
3
-3
Liverpool A/P
53.3340N -2.8500E
1730
1720
6.84
8
1.16
6.75
8
1.25
92
0
-92
1037.5
1037
-0.5
299
350
51
8
4
-4
Wick A/P
58.4589N -3.0931E
1730
1720
8.45
9
0.55
7.54
8
0.46
541
400
-141
1031.9
1032
0.1
249
220
29
9
6
-3
0RNAS Yeovilton
51.0063N -2.6428E
1700
1650
5.29
7
1.71
5.23
7
1.77
107
0
-107
1036.0
1036
0
27
020
7
5
5
0


Table Averages
Difference Averages: Dry: 2.09° C - Wet: 1.95° C - Wind Speed: -2.73 Knots (RASP High) - Wind Deviation: 41.1 Degrees - Pressure: -0.1 mb - Cloudbase: -125 ft
Difference calculations based on actual minus the forecast.
Averages that are greater than +/- 2 Celcius indicates forecast widely differs from actuals.

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)

Notes and Observations
EGNC (C) Carlisle A/P - METAR report more than six hours old (49 hours) for EGNC - report not usable.
EGWC (D) RAF Cosford - METAR report more than six hours old (9 hours) for EGWC - report not usable.
EGVA () RAF Fairford - METAR report more than six hours old (7 hours) for EGVA - report not usable.
EGOP (7) Pembrey Sands Stn - METAR report more than six hours old (32 hours) for EGOP - report not usable.


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.

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