[ RASP UK Forecast (Stratus) ]


Main Menu
Overview
Stratus RASP Tools
Useful DIY RASP Scripts
Contact Us
Other Tools

RASP Interpretation
For more Information about the data in the maps, see DrJack's Website and especially the Parameter Descriptions

Much Further Information
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: 10:12:05 24/02/2020 for this map view. This run created in 63.82 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
1000
0950
9.64
10
0.36
8.10
9
0.9
893
400
-493
1007.4
1006
-1.4
224
230
6
28
16
-12
BCambridge A/P
52.2050N 0.1750W
1000
0950
10.53
10
-0.53
7.73
9
1.27
1293
400
-893
1006.6
1006
-0.6
228
220
8
26
14
-12
CCarlisle A/P
54.9387N -2.8088E
1000
0950
3.93
2
-1.93
2.60
1
-1.6
812
400
-412
995.0
997
2
47
080
33
6
10
4
DRAF Cosford
52.6400N -2.3056E
1000
0950
10.71
10
-0.71
7.86
8
0.14
1620
800
-820
1002.4
1003
0.6
217
230
13
24
9
-15
RAF Culdrose
50.0843N -5.2571E
1000
0950
10.34
10
-0.34
9.02
10
0.98
724
0
-724
1012.7
1012
-0.7
235
230
5
33
30
-3
FExeter A/P
50.7372N -3.4058E
1000
0950
10.43
10
-0.43
9.15
9
-0.15
619
400
-219
1009.8
1010
0.2
236
220
16
32
18
-14
RAF Odiham
51.2391N -0.9450E
1000
0950
9.44
10
0.56
8.25
9
0.75
849
400
-449
1009.8
1009
-0.8
229
220
9
29
26
-3
IRAF Wittering
52.6114N -0.4612E
1000
0950
9.53
10
0.47
7.74
9
1.26
1024
400
-624
1003.8
1003
-0.8
228
220
8
32
19
-13
RAF Fairford
51.68135N -1.79109E
1100
1001
10.76
10
-0.76
9.01
10
0.99
1070
0
-1070
1006.4
1007
0.6
232
230
2
26
16
-10
JRAF Shawbury
52.7947N -2.6647E
1000
0950
11.75
10
-1.75
8.49
9
0.51
1730
400
-1330
1000.9
1001
0.1
234
220
14
25
20
-5
KRAF Benson
51.6203N -1.0987E
1000
0950
10.01
11
0.99
7.96
9
1.04
1186
800
-386
1008.2
1008
-0.2
223
210
13
25
20
-5
LCambel Town
55.4372N -5.6864E
1000
0950
2.63
3
0.37
0.68
2
1.32
1001
400
-601
995.3
995
-0.3
76
090
14
23
16
-7
MRAF Valley
53.2527N -4.5365E
1000
0950
9.81
10
0.19
9.33
9
-0.33
259
400
141
998.7
999
0.3
221
210
11
35
28
-7
NLydd A/P
50.9561N 0.9392W
1000
0950
10.28
11
0.72
8.91
11
2.09
593
0
-593
1012.5
1012
-0.5
231
230
1
34
27
-7
ODundee A/P
56.4525N -3.0258E
1000
0950
2.50
3
0.5
1.70
2
0.3
556
400
-156
1000.9
1001
0.1
105
100
5
20
14
-6
PRAF Kinloss
57.6456N -3.5635E
1000
0950
3.37
3
-0.37
-0.52
-2
-1.48
1694
2000
306
1003.3
1003
-0.3
95
090
5
15
7
-8
QNorwich A/P
52.6333N 1.3000W
1000
0950
9.47
8
-1.47
7.96
7
-0.96
766
400
-366
1005.5
1005
-0.5
222
190
32
25
13
-12
SLuton A/P
51.8747N -0.3683E
1000
0950
9.60
9
-0.6
7.68
9
1.32
1285
0
-1285
1007.4
1007
-0.4
227
220
7
29
18
-11
TCardiff Intl A/P
51.3967N -3.3433E
1000
0950
9.85
10
0.15
8.16
9
0.84
885
400
-485
1007.8
1007
-0.8
238
250
12
25
22
-3
UNewcastle A/P
55.0375N -1.6917E
1000
0950
2.07
0
-2.07
1.02
0
-1.02
720
0
-720
997.8
999
1.2
117
130
13
12
9
-3
VBelfast / Aldergrove A/P
54.6633N -6.2258E
1000
0950
3.76
4
0.24
3.82
4
0.18
274
0
-274
994.8
994
-0.8
141
VRB
0
4
2
-2
WManchester A/P
53.3537N -2.2750E
1000
0950
9.94
9
-0.94
8.15
9
0.85
1080
0
-1080
999.6
1000
0.4
209
200
9
20
10
-10
XGlasgow A/P
55.8719N -4.4331E
1000
0950
1.91
2
0.09
0.10
1
0.9
868
400
-468
997.5
998
0.5
75
060
15
20
16
-4
YEdinburgh A/P
55.9500N -3.3500E
1000
0950
1.16
2
0.84
0.39
2
1.61
481
0
-481
998.5
999
0.5
76
070
6
17
12
-5
ZHeathrow A/P
51.4775N -0.4614E
1000
0950
10.21
11
0.79
8.46
9
0.54
845
800
-45
1009.4
1009
-0.4
222
230
8
25
16
-9
1Southampton A/P
50.9499N -1.3585E
1000
0950
9.98
11
1.02
8.62
9
0.38
674
800
126
1011.1
1011
-0.1
232
240
8
23
20
-3
2Leeds A/P
53.8618N -1.6653E
1000
0950
5.50
2
-3.5
5.89
2
-3.89
509
0
-509
997.3
999
1.7
211
150
61
14
6
-8
3Dublin A/P
53.4215N -6.2977E
1100
1000
9.79
11
1.21
7.48
10
2.52
1219
400
-819
998.5
996
-2.5
255
240
15
28
19
-9
Stornaway A/P
58.2156N -6.3311E
1000
0950
4.01
5
0.99
-0.27
0
0.27
1911
2000
89
1002.8
1003
0.2
98
080
18
16
10
-6
4Tiree
56.5000N -6.8828E
1000
0950
3.89
3
-0.89
1.11
2
0.89
1180
400
-780
999.4
998
-1.4
64
080
16
18
17
-1
5Benbecula
57.4811N -7.3628E
1000
0950
3.74
3
-0.74
2.00
2
0
800
400
-400
1001.9
1001
-0.9
109
080
29
18
14
-4
6Ronaldsway A/P
54.0853N -4.6320E
1000
0950
9.03
9
-0.03
7.34
9
1.66
86
0
-86
995.5
996
0.5
222
210
12
27
17
-10
RAF Boulmer
55.4209N -1.6012E
1000
0950
3.24
3
-0.24
2.36
2
-0.36
430
400
-30
999.6
1001
1.4
123
120
3
27
21
-6
Aberdeen A/P
57.2049N -2.2053E
1000
0950
3.33
3
-0.33
1.65
1
-0.65
1022
800
-222
1002.9
1004
1.1
101
090
11
18
12
-6
Birmingham A/P
52.4602N -1.7576E
1000
0950
9.78
10
0.22
7.84
9
1.16
1227
400
-827
1003.6
1004
0.4
227
220
7
30
12
-18
Humberside A/P
53.5744N -0.3508E
1000
0950
9.46
7
-2.46
7.82
7
-0.82
912
0
-912
1000.1
1001
0.9
218
190
28
26
17
-9
Staverton A/P
51.8923N -2.1608E
1000
0950
10.04
10
-0.04
8.29
10
1.71
905
0
-905
1006.2
1006
-0.2
227
220
7
33
18
-15
Islay A/P
55.6814N -6.2498E
1000
0950
2.78
3
0.22
0.80
2
1.2
995
400
-595
996.1
995
-1.1
86
090
4
22
22
0
Eglinton A/P
55.0428N -7.1611E
1000
0950
1.55
3
1.45
1.15
3
1.85
439
0
-439
996.1
994
-2.1
51
VRB
0
11
3
-8
Southend A/P
51.5714N 0.6956W
1000
0950
9.81
11
1.19
8.37
9
0.63
709
800
91
1009.7
1008
-1.7
227
220
7
27
23
-4
Biggin Hill A/P
51.3308N 0.0325W
1000
0950
8.77
9
0.23
8.34
8
-0.34
676
400
-276
1009.8
1009
-0.8
229
220
9
33
22
-11
London City A/P
51.5053N 0.0553W
1000
0950
10.37
12
1.63
8.09
9
0.91
1009
1200
191
1009.5
1008
-1.5
230
240
10
26
20
-6
East Midlands A/P
52.8311N -1.3281E
1000
0950
10.25
9
-1.25
7.73
8
0.27
1327
400
-927
1002.5
1002
-0.5
225
210
15
30
21
-9
Doncaster A/P
53.4747N -1.0044E
1000
0950
10.64
8
-2.64
8.00
8
0
1242
0
-1242
999.5
1001
1.5
224
190
34
30
9
-21
Liverpool A/P
53.3340N -2.8500E
1000
0950
9.40
12
2.6
6.00
10
4
1248
800
-448
999.1
999
-0.1
192
230
38
14
18
4
Wick A/P
58.4589N -3.0931E
1000
0950
4.73
4
-0.73
-0.36
1
1.36
2258
1200
-1058
1004.8
1005
0.2
126
130
4
15
8
-7
7Pembrey Sands Stn
51.7144N -4.3675E
1000
0950
9.85
10
0.15
9.04
10
0.96
429
0
-429
1006.1
1006
-0.1
232
230
2
34
33
-1
0RNAS Yeovilton
51.0063N -2.6428E
1000
0950
10.46
11
0.54
8.83
9
0.17
827
800
-27
1009.7
1010
0.3
228
220
8
30
13
-17


Table Averages
Difference Averages: Dry: -0.15° C - Wet: 0.54° C - Wind Speed: -7.44 Knots (RASP High) - Wind Deviation: 16.7 Degrees - Pressure: -0.1 mb - Cloudbase: -499 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
No notes for this run.


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