[ 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: 17:41:28 21/04/2018 for this map view. This run created in 26.45 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
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 (752 hours) for EGUO - report not usable.
EGBE (8) Coventry A/P - METAR report more than six hours old (6651 hours) for EGBE - 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: 0.92° C - Wet: -0.25° C - Wind Speed: -2.95 Knots (RASP High) - Wind Deviation: 28.2 Degrees - Pressure: -26.1 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
1700
1650
16.32
18
1.68
10.61
8
-2.61
2646
4000
1354
1019.3
1019
-0.3
138
140
2
11
10
-1
BCambridge A/P
52.2050N 0.1750W
1730
1720
19.59
19
-0.59
13.17
12
-1.17
2774
2800
26
1017.8
1018
0.2
145
150
5
13
7
-6
CCarlisle A/P
54.9387N -2.8088E
1730
1720
18.28
19
0.72
9.54
7
-2.54
3921
4800
879
1015.2
1014
-1.2
225
190
35
10
7
-3
RAF Culdrose
50.0843N -5.2571E
1700
1650
16.34
17
0.66
13.34
12
-1.34
1444
2000
556
1015.1
1014
-1.1
127
070
57
8
11
3
FExeter A/P
50.7372N -3.4058E
1730
1720
16.44
18
1.56
11.99
12
0.01
2044
2400
356
1015.8
1015
-0.8
136
180
44
9
7
-2
RAF Odiham
51.2391N -0.9450E
1700
1650
21.42
21
-0.42
12.33
13
0.67
4347
3200
-1147
1017.3
1017
-0.3
151
150
1
13
9
-4
HGatwick A/P
51.1481N -0.1903E
1730
1720
21.79
23
1.21
12.10
12
-0.1
4475
4400
-75
1017.5
1017
-0.5
143
140
3
10
5
-5
IRAF Wittering
52.6114N -0.4612E
1700
1650
21.17
20
-1.17
14.01
14
-0.01
3386
2400
-986
1017.3
1017
-0.3
165
140
25
12
7
-5
RAF Fairford
51.68135N -1.79109E
1730
1731
21.91
22
0.09
13.36
13
-0.36
4194
3600
-594
1016.2
0
-1016.2
168
120
48
12
11
-1
JRAF Shawbury
52.7947N -2.6647E
1700
1650
21.75
20
-1.75
14.94
12
-2.94
3251
3200
-51
1015.3
1015
-0.3
173
160
13
12
12
0
KRAF Benson
51.6203N -1.0987E
1700
1650
22.50
21
-1.5
12.93
12
-0.93
4575
3600
-975
1017.0
1017
0
165
140
25
13
10
-3
MRAF Valley
53.2527N -4.5365E
1700
1650
15.36
17
1.64
6.16
7
0.84
3944
4000
56
1015.3
1014
-1.3
242
330
88
4
5
1
NLydd A/P
50.9561N 0.9392W
1730
1720
14.65
15
0.35
11.03
11
-0.03
1563
1600
37
1018.5
1018
-0.5
81
080
1
12
14
2
ODundee A/P
56.4525N -3.0258E
1600
1550
8.70
15
6.3
5.01
8
2.99
1669
2800
1131
1016.7
1016
-0.7
107
080
27
10
6
-4
PRAF Kinloss
57.6456N -3.5635E
1700
1650
16.36
16
-0.36
5.02
6
0.98
4829
4000
-829
1013.8
1013
-0.8
212
020
168
16
8
-8
QNorwich A/P
52.6333N 1.3000W
1730
1720
16.00
18
2
7.98
8
0.02
3268
4000
732
1019.2
1019
-0.2
139
130
9
12
9
-3
SLuton A/P
51.8747N -0.3683E
1730
1720
20.58
19
-1.58
14.03
15
0.97
3292
1600
-1692
1017.3
1017
-0.3
131
140
9
15
6
-9
TCardiff Intl A/P
51.3967N -3.3433E
1730
1720
19.03
22
2.97
14.44
15
0.56
2103
2800
697
1015.0
1014
-1
155
110
45
13
8
-5
UNewcastle A/P
55.0375N -1.6917E
1730
1720
16.96
17
0.04
9.81
9
-0.81
3316
3200
-116
1016.3
1015
-1.3
170
130
40
13
8
-5
VBelfast / Aldergrove A/P
54.6633N -6.2258E
1730
1720
15.23
16
0.77
8.73
7
-1.73
3064
3600
536
1013.3
1012
-1.3
161
130
31
13
10
-3
WManchester A/P
53.3537N -2.2750E
1730
1720
21.50
22
0.5
13.81
13
-0.81
3631
3600
-31
1015.1
1014
-1.1
172
140
32
10
5
-5
XGlasgow A/P
55.8719N -4.4331E
1730
1720
16.09
19
2.91
5.83
4
-1.83
4542
6000
1458
1014.3
1013
-1.3
197
170
27
11
11
0
YEdinburgh A/P
55.9500N -3.3500E
1730
1720
17.09
16
-1.09
5.15
6
0.85
5219
4000
-1219
1014.8
1014
-0.8
198
050
148
12
10
-2
ZHeathrow A/P
51.4775N -0.4614E
1730
1720
22.10
22
-0.1
12.84
15
2.16
4339
2800
-1539
1017.2
1017
-0.2
156
090
66
11
3
-8
1Southampton A/P
50.9499N -1.3585E
1730
1720
20.50
20
-0.5
10.41
11
0.59
4139
3600
-539
1016.8
1016
-0.8
133
140
7
11
4
-7
2Leeds A/P
53.8618N -1.6653E
1730
1720
18.46
20
1.54
12.30
11
-1.3
3307
3600
293
1016.2
1016
-0.2
150
150
0
10
10
0
3Dublin A/P
53.4215N -6.2977E
1730
1730
15.20
14
-1.2
6.91
7
0.09
3793
2800
-993
1013.7
1013
-0.7
147
120
27
8
9
1
Stornaway A/P
58.2156N -6.3311E
1730
1720
10.30
10
-0.3
4.61
6
1.39
2433
1600
-833
1012.0
1012
0
197
190
7
16
9
-7
4Tiree
56.5000N -6.8828E
1730
1720
10.49
11
0.51
7.41
8
0.59
1242
1200
-42
1012.1
1012
-0.1
158
150
8
13
5
-8
5Benbecula
57.4811N -7.3628E
1730
1720
9.71
10
0.29
6.28
6
-0.28
1718
1600
-118
1011.6
1012
0.4
188
200
12
17
16
-1
6Ronaldsway A/P
54.0853N -4.6320E
1730
1720
9.37
14
4.63
6.45
7
0.55
1785
2800
1015
1015.1
1014
-1.1
92
090
2
5
6
1
RAF Boulmer
55.4209N -1.6012E
1700
1650
6.86
10
3.14
6.03
8
1.97
445
800
355
1017.4
1016
-1.4
152
140
12
9
11
2
Aberdeen A/P
57.2049N -2.2053E
1730
1720
10.68
14
3.32
6.29
6
-0.29
2055
3200
1145
1016.0
1015
-1
171
160
11
14
15
1
Humberside A/P
53.5744N -0.3508E
1730
1720
17.03
17
-0.03
11.44
12
0.56
2543
2000
-543
1017.4
1017
-0.4
116
090
26
11
11
0
Staverton A/P
51.8923N -2.1608E
1730
1720
22.26
24
1.74
13.47
12
-1.47
4081
4800
719
1015.5
1015
-0.5
163
150
13
14
8
-6
Islay A/P
55.6814N -6.2498E
1730
1720
10.74
13
2.26
6.46
6
-0.46
1885
2800
915
1012.9
1012
-0.9
145
140
5
20
20
0
Eglinton A/P
55.0428N -7.1611E
1730
1720
16.21
19
2.79
6.06
3
-3.06
4501
6400
1899
1011.9
1010
-1.9
201
190
11
16
10
-6
Doncaster A/P
53.4747N -1.0044E
1730
1720
20.62
20
-0.62
13.70
14
0.3
3022
2400
-622
1016.5
1017
0.5
157
150
7
12
6
-6
7Pembrey Sands Stn
51.7144N -4.3675E
1700
1650
20.32
22
1.68
15.38
13
-2.38
2250
3600
1350
1014.8
1013
-1.8
143
120
23
10
9
-1
0RNAS Yeovilton
51.0063N -2.6428E
1700
1650
20.43
23
2.57
13.49
14
0.51
3204
3600
396
1016.1
1015
-1.1
138
130
8
14
9
-5


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