[ 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: 12:42:05 08/12/2019 for this map view. This run created in 63.65 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
1200
1150
8.94
10
1.06
2.85
5
2.15
2827
2000
-827
999.7
998
-1.7
250
250
0
28
22
-6
CCarlisle A/P
54.9387N -2.8088E
1230
1220
7.23
7
-0.23
2.06
4
1.94
2338
1200
-1138
986.5
986
-0.5
240
250
10
32
22
-10
DRAF Cosford
52.6400N -2.3056E
900
0850
6.33
8
1.67
2.59
4
1.41
2052
1600
-452
997.5
997
-0.5
242
240
2
21
12
-9
RAF Culdrose
50.0843N -5.2571E
1200
1150
9.35
10
0.65
5.69
5
-0.69
1765
2000
235
1007.9
1006
-1.9
267
260
7
31
22
-9
FExeter A/P
50.7372N -3.4058E
1230
1220
9.70
11
1.3
4.48
6
1.52
2311
2000
-311
1004.6
1003
-1.6
263
240
23
27
16
-11
RAF Odiham
51.2391N -0.9450E
1200
1150
9.08
10
0.92
3.92
6
2.08
2513
1600
-913
1002.4
1001
-1.4
248
220
28
32
20
-12
IRAF Wittering
52.6114N -0.4612E
1200
1150
8.38
10
1.62
2.62
4
1.38
2696
2400
-296
997.6
995
-2.6
250
250
0
28
20
-8
RAF Fairford
51.68135N -1.79109E
1230
1230
7.97
7
-0.97
4.94
4
-0.94
1629
1200
-429
1000.8
999
-1.8
267
250
17
23
17
-6
JRAF Shawbury
52.7947N -2.6647E
1200
1150
8.13
7
-1.13
2.07
3
0.93
2809
1600
-1209
996.7
995
-1.7
251
240
11
28
26
-2
KRAF Benson
51.6203N -1.0987E
1200
1150
8.18
10
1.82
5.05
4
-1.05
1631
2400
769
1001.4
1000
-1.4
244
240
4
22
19
-3
MRAF Valley
53.2527N -4.5365E
1200
1150
8.38
9
0.62
3.44
4
0.56
2133
2000
-133
994.7
994
-0.7
250
240
10
38
28
-10
NLydd A/P
50.9561N 0.9392W
1230
1220
10.66
12
1.34
4.53
6
1.47
2600
2400
-200
1004.0
1002
-2
256
250
6
27
25
-2
ODundee A/P
56.4525N -3.0258E
1230
1220
6.32
6
-0.32
3.86
5
1.14
1345
400
-945
978.6
979
0.4
238
240
2
25
16
-9
PRAF Kinloss
57.6456N -3.5635E
1200
1150
6.50
6
-0.5
1.45
3
1.55
2262
1200
-1062
972.8
974
1.2
234
220
14
30
13
-17
QNorwich A/P
52.6333N 1.3000W
1230
1220
9.17
10
0.83
1.55
4
2.45
3163
2400
-763
997.8
996
-1.8
251
240
11
24
21
-3
SLuton A/P
51.8747N -0.3683E
1230
1220
8.45
8
-0.45
3.98
4
0.02
2333
1600
-733
1000.6
999
-1.6
248
250
2
24
27
3
TCardiff Intl A/P
51.3967N -3.3433E
1230
1220
9.33
10
0.67
4.90
4
-0.9
2055
2400
345
1002.0
1001
-1
260
270
10
33
19
-14
UNewcastle A/P
55.0375N -1.6917E
1230
1220
6.89
7
0.11
1.57
3
1.43
2494
1600
-894
986.0
985
-1
244
250
6
33
23
-10
VBelfast / Aldergrove A/P
54.6633N -6.2258E
1230
1220
6.64
5
-1.64
2.28
4
1.72
2083
400
-1683
986.7
986
-0.7
241
240
1
36
20
-16
WManchester A/P
53.3537N -2.2750E
1230
1220
7.84
8
0.16
2.15
3
0.85
2667
2000
-667
994.3
993
-1.3
246
240
6
26
24
-2
XGlasgow A/P
55.8719N -4.4331E
1230
1220
6.29
6
-0.29
3.26
4
0.74
1411
800
-611
980.8
981
0.2
232
220
12
27
25
-2
YEdinburgh A/P
55.9500N -3.3500E
1230
1220
6.30
6
-0.3
2.27
4
1.73
1927
800
-1127
980.3
981
0.7
232
230
2
35
17
-18
ZHeathrow A/P
51.4775N -0.4614E
1230
1220
8.63
11
2.37
5.66
5
-0.66
1354
2400
1046
1002.2
1001
-1.2
253
240
13
16
19
3
1Southampton A/P
50.9499N -1.3585E
1230
1220
10.05
11
0.95
4.08
3
-1.08
2494
3200
706
1003.5
1003
-0.5
247
240
7
24
15
-9
2Leeds A/P
53.8618N -1.6653E
1230
1220
6.42
7
0.58
2.52
4
1.48
2189
1200
-989
991.7
990
-1.7
244
250
6
26
18
-8
3Dublin A/P
53.4215N -6.2977E
1230
1230
6.96
6
-0.96
1.42
4
2.58
2556
800
-1756
993.1
992
-1.1
244
230
14
27
13
-14
Stornaway A/P
58.2156N -6.3311E
1230
1220
6.51
6
-0.51
4.20
4
-0.2
1105
800
-305
968.2
969
0.8
245
230
15
22
11
-11
4Tiree
56.5000N -6.8828E
1230
1220
7.63
8
0.37
4.21
5
0.79
1516
1200
-316
976.6
976
-0.6
246
250
4
37
28
-9
5Benbecula
57.4811N -7.3628E
1230
1220
8.52
7
-1.52
5.50
5
-0.5
1414
800
-614
970.8
971
0.2
242
260
18
43
30
-13
6Ronaldsway A/P
54.0853N -4.6320E
1230
1220
8.74
8
-0.74
4.09
3
-1.09
2239
2000
-239
990.2
989
-1.2
249
240
9
43
31
-12
RAF Boulmer
55.4209N -1.6012E
1200
1150
7.89
8
0.11
3.05
3
-0.05
2325
2000
-325
984.3
983
-1.3
243
240
3
38
27
-11
Aberdeen A/P
57.2049N -2.2053E
1230
1220
5.64
6
0.36
0.84
1
0.16
2340
2000
-340
975.5
976
0.5
227
240
13
25
12
-13
Birmingham A/P
52.4602N -1.7576E
1230
1220
8.17
8
-0.17
2.27
2
-0.27
2863
2400
-463
997.6
996
-1.6
251
240
11
27
12
-15
Humberside A/P
53.5744N -0.3508E
1230
1220
8.00
10
2
2.13
4
1.87
2630
2400
-230
993.6
992
-1.6
243
230
13
29
23
-6
Staverton A/P
51.8923N -2.1608E
1230
1220
9.30
10
0.7
3.57
4
0.43
2553
2400
-153
1000.3
999
-1.3
249
260
11
25
15
-10
Islay A/P
55.6814N -6.2498E
1230
1220
7.71
7
-0.71
4.73
6
1.27
1415
400
-1015
981.2
981
-0.2
248
250
2
41
24
-17
Eglinton A/P
55.0428N -7.1611E
1230
1220
6.57
7
0.43
2.88
4
1.12
1739
1200
-539
984.3
984
-0.3
241
240
1
30
24
-6
Southend A/P
51.5714N 0.6956W
1230
1220
9.96
10
0.04
3.37
3
-0.37
2740
2800
60
1001.8
999
-2.8
249
240
9
22
24
2
Biggin Hill A/P
51.3308N 0.0325W
1230
1220
8.67
9
0.33
4.09
5
0.91
2444
1600
-844
1002.3
1001
-1.3
245
230
15
24
14
-10
London City A/P
51.5053N 0.0553W
1230
1220
9.38
11
1.62
4.04
4
-0.04
2177
2800
623
1002.3
1000
-2.3
247
250
3
22
21
-1
East Midlands A/P
52.8311N -1.3281E
1230
1220
8.48
9
0.52
1.80
3
1.2
3046
2400
-646
996.8
994
-2.8
251
240
11
30
26
-4
Doncaster A/P
53.4747N -1.0044E
1230
1220
8.19
9
0.81
2.46
2
-0.46
2462
2800
338
994.1
993
-1.1
245
230
15
27
23
-4
Liverpool A/P
53.3340N -2.8500E
1230
1220
8.39
9
0.61
3.75
4
0.25
2248
2000
-248
994.5
993
-1.5
250
240
10
31
17
-14
Wick A/P
58.4589N -3.0931E
1230
1220
5.99
6
0.01
2.01
3
0.99
1836
1200
-636
969.1
971
1.9
220
230
10
25
12
-13


Table Averages
Difference Averages: Dry: 0.32° C - Wet: 0.68° C - Wind Speed: -8.43 Knots (RASP High) - Wind Deviation: 9 Degrees - Pressure: -1 mb - Cloudbase: -453 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
EGSC (B) Cambridge A/P - METAR report more than six hours old (43 hours) for EGSC - report not usable.
EGEC (L) Cambel Town - METAR report more than six hours old (43 hours) for EGEC - report not usable.
EGUO (R) Colerne - METAR report more than six hours old (7862 hours) for EGUO - report not usable.
EGBE (8) Coventry A/P - METAR report more than six hours old (21671 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