[ 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: 17:42:02 25/04/2019 for this map view. This run created in 61.21 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
1700
1650
13.82
14
0.18
6.36
7
0.64
3376
2800
-576
1002.0
1001
-1
186
170
16
17
12
-5
BCambridge A/P
52.2050N 0.1750W
1730
1720
14.76
15
0.24
4.76
4
-0.76
4213
4400
187
1001.4
1000
-1.4
202
190
12
17
12
-5
DRAF Cosford
52.6400N -2.3056E
1500
1450
13.15
13
-0.15
5.85
8
2.15
3450
2000
-1450
997.3
997
-0.3
177
160
17
18
9
-9
RAF Culdrose
50.0843N -5.2571E
1700
1650
11.80
12
0.2
6.80
6
-0.8
2268
2400
132
998.2
998
-0.2
214
200
14
17
14
-3
FExeter A/P
50.7372N -3.4058E
1730
1720
12.10
13
0.9
7.30
5
-2.3
2139
3200
1061
999.4
999
-0.4
179
190
11
16
14
-2
RAF Odiham
51.2391N -0.9450E
1700
1650
12.87
14
1.13
5.76
4
-1.76
3355
4000
645
1001.2
1000
-1.2
186
200
14
17
16
-1
IRAF Wittering
52.6114N -0.4612E
1700
1650
13.63
14
0.37
6.10
5
-1.1
3488
3600
112
1000.2
998
-2.2
194
180
14
18
14
-4
RAF Fairford
51.68135N -1.79109E
1700
1656
12.70
13.2
0.5
6.14
5.4
-0.74
3102
3120
18
999.9
999
-0.9
180
180
17
-17
JRAF Shawbury
52.7947N -2.6647E
1700
1650
11.65
13
1.35
5.69
7
1.31
2859
2400
-459
998.0
997
-1
212
210
2
11
13
2
KRAF Benson
51.6203N -1.0987E
1700
1650
12.77
15
2.23
5.15
5
-0.15
3577
4000
423
1000.7
1000
-0.7
194
200
6
17
15
-2
LCambel Town
55.4372N -5.6864E
1700
1650
12.21
12
-0.21
7.88
8
0.12
1907
1600
-307
994.7
995
0.3
156
100
56
18
12
-6
MRAF Valley
53.2527N -4.5365E
1700
1650
11.62
13
1.38
6.48
7
0.52
2138
2400
262
995.8
995
-0.8
158
180
22
20
16
-4
NLydd A/P
50.9561N 0.9392W
1730
1720
13.12
13
-0.12
7.70
8
0.3
2324
2000
-324
1003.5
1003
-0.5
183
180
3
14
15
1
ODundee A/P
56.4525N -3.0258E
1730
1720
7.31
9
1.69
6.98
9
2.02
335
0
-335
998.7
999
0.3
78
090
12
17
8
-9
PRAF Kinloss
57.6456N -3.5635E
1700
1650
12.86
16
3.14
6.22
4
-2.22
2825
4800
1975
998.8
998
-0.8
123
140
17
19
12
-7
QNorwich A/P
52.6333N 1.3000W
1730
1720
14.89
15
0.11
5.36
8
2.64
3873
2800
-1073
1002.2
1001
-1.2
188
170
18
17
14
-3
SLuton A/P
51.8747N -0.3683E
1730
1720
12.80
14
1.2
4.69
4
-0.69
3868
4000
132
1001.4
1000
-1.4
197
200
3
19
12
-7
TCardiff Intl A/P
51.3967N -3.3433E
1730
1720
12.29
11
-1.29
7.07
8
0.93
2357
1200
-1157
998.8
999
0.2
175
VRB
0
20
2
-18
UNewcastle A/P
55.0375N -1.6917E
1700
1650
10.99
8
-2.99
8.48
8
-0.48
1403
0
-1403
998.0
998
0
113
VRB
0
12
2
-10
VBelfast / Aldergrove A/P
54.6633N -6.2258E
1730
1720
11.99
12
0.01
7.80
8
0.2
1989
1600
-389
993.9
994
0.1
150
130
20
17
8
-9
WManchester A/P
53.3537N -2.2750E
1730
1720
13.02
10
-3.02
4.37
8
3.63
3977
800
-3177
998.4
998
-0.4
177
160
17
19
10
-9
XGlasgow A/P
55.8719N -4.4331E
1730
1720
11.18
14
2.82
8.76
7
-1.76
1192
2800
1608
996.1
996
-0.1
168
110
58
13
15
2
YEdinburgh A/P
55.9500N -3.3500E
1730
1720
11.09
11
-0.09
8.16
9
0.84
1327
800
-527
997.0
998
1
75
080
5
11
8
-3
ZHeathrow A/P
51.4775N -0.4614E
1730
1720
13.29
15
1.71
6.22
4
-2.22
3153
4400
1247
1001.9
1001
-0.9
194
200
6
17
13
-4
1Southampton A/P
50.9499N -1.3585E
1730
1720
13.58
13
-0.58
3.54
4
0.46
4028
3600
-428
1001.5
1001
-0.5
192
200
8
14
14
0
2Leeds A/P
53.8618N -1.6653E
1730
1720
13.61
11
-2.61
4.82
4
-0.82
4306
2800
-1506
998.2
998
-0.2
182
240
58
17
8
-9
3Dublin A/P
53.4215N -6.2977E
1730
1730
10.74
10
-0.74
7.87
8
0.13
1402
800
-602
992.9
993
0.1
148
140
8
20
10
-10
Stornaway A/P
58.2156N -6.3311E
1730
1720
11.61
13
1.39
6.20
8
1.8
2278
2000
-278
997.2
997
-0.2
66
060
6
12
8
-4
4Tiree
56.5000N -6.8828E
1730
1720
13.04
11
-2.04
5.98
8
2.02
2876
1200
-1676
994.9
996
1.1
124
120
4
11
15
4
5Benbecula
57.4811N -7.3628E
1730
1720
10.24
15
4.76
7.23
6
-1.23
1814
3600
1786
995.7
996
0.3
107
090
17
2
7
5
6Ronaldsway A/P
54.0853N -4.6320E
1730
1720
9.75
12
2.25
8.20
8
-0.2
807
1600
793
996.0
996
0
156
170
14
10
8
-2
RAF Boulmer
55.4209N -1.6012E
1700
1650
8.20
9
0.8
7.42
9
1.58
104
0
-104
998.7
999
0.3
137
140
3
16
9
-7
Aberdeen A/P
57.2049N -2.2053E
1730
1720
7.76
9
1.24
7.38
8
0.62
425
400
-25
999.8
1001
1.2
114
130
16
17
9
-8
Birmingham A/P
52.4602N -1.7576E
1730
1720
12.96
11
-1.96
5.81
7
1.19
3435
1600
-1835
999.5
999
-0.5
180
180
0
19
7
-12
Humberside A/P
53.5744N -0.3508E
1730
1720
14.47
13
-1.47
5.85
7
1.15
3844
2400
-1444
999.8
999
-0.8
192
VRB
0
17
7
-10
Staverton A/P
51.8923N -2.1608E
1730
1720
12.95
11
-1.95
6.31
7
0.69
3032
1600
-1432
999.7
999
-0.7
177
230
53
18
7
-11
Islay A/P
55.6814N -6.2498E
1730
1720
11.94
13
1.06
8.06
8
-0.06
1667
2000
333
994.8
995
0.2
150
130
20
17
13
-4
Eglinton A/P
55.0428N -7.1611E
1730
1720
12.76
13
0.24
7.51
8
0.49
2339
2000
-339
993.2
994
0.8
136
120
16
12
9
-3
Southend A/P
51.5714N 0.6956W
1730
1720
14.35
15
0.65
4.28
4
-0.28
4044
4400
356
1002.5
1002
-0.5
191
190
1
16
16
0
Biggin Hill A/P
51.3308N 0.0325W
1730
1720
12.56
13
0.44
5.19
5
-0.19
3663
3200
-463
1002.2
1002
-0.2
195
200
5
17
15
-2
London City A/P
51.5053N 0.0553W
1730
1720
14.63
16
1.37
2.95
5
2.05
4667
4400
-267
1002.1
1001
-1.1
197
180
17
16
12
-4
East Midlands A/P
52.8311N -1.3281E
1700
1650
12.33
10
-2.33
5.51
6
0.49
3174
1600
-1574
999.5
999
-0.5
198
210
12
17
12
-5
Doncaster A/P
53.4747N -1.0044E
1730
1720
14.56
13
-1.56
4.93
9
4.07
4146
1600
-2546
999.2
1000
0.8
186
140
46
18
5
-13
Liverpool A/P
53.3340N -2.8500E
1730
1720
10.46
13
2.54
6.86
7
0.14
2005
2400
395
998.0
997
-1
155
110
45
10
5
-5
Wick A/P
58.4589N -3.0931E
1730
1720
9.40
10
0.6
7.32
8
0.68
846
800
-46
1000.8
1001
0.2
130
140
10
20
18
-2


Table Averages
Difference Averages: Dry: 0.3° C - Wet: 0.34° C - Wind Speed: -5.2 Knots (RASP High) - Wind Deviation: 29.7 Degrees - Pressure: -0.3 mb - Cloudbase: -317 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 (4683 hours) for EGNC - report not usable.
EGUO (R) Colerne - METAR report more than six hours old (1674 hours) for EGUO - report not usable.
EGBE (8) Coventry A/P - METAR report more than six hours old (15507 hours) for EGBE - 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