[ 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: 07:11:31 25/02/2018 for this map view. This run created in 29.07 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
EGSC (B) Cambridge A/P - METAR report more than six hours old (13 hours) for EGSC - report not usable.
EGNC (C) Carlisle A/P - METAR report more than six hours old (13 hours) for EGNC - report not usable.
EGTE (F) Exeter A/P - METAR report more than six hours old (15 hours) for EGTE - report not usable.
EGEC (L) Cambel Town -

no RASP results found for comparing EGEC at 130 for location 55.4372N -5.6864E

EGPN (O) Dundee A/P - METAR report more than six hours old (15 hours) for EGPN - report not usable.
EGUO (R) Colerne - METAR report more than six hours old (2352 hours) for EGUO - report not usable.
EGBE (8) Coventry A/P - METAR report more than six hours old (5321 hours) for EGBE - report not usable.
EGBJ () Staverton A/P - METAR report more than six hours old (10 hours) for EGBJ - report not usable.
EGAE () Eglinton A/P - METAR report more than six hours old (15 hours) for EGAE - 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: 3.35° C - Wet: 3.26° C - Wind Speed: -3.53 Knots (RASP High) - Wind Deviation: 23.9 Degrees - Pressure: -0 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
700
0650
-1.83
-1
0.83
-5.25
-5
0.25
1758
1600
-158
1028.2
1028
-0.2
76
090
14
11
9
-2
RAF Culdrose
50.0843N -5.2571E
700
0650
4.09
5
0.91
1.25
0
-1.25
1488
2000
512
1020.7
1020
-0.7
100
100
0
21
24
3
RAF Odiham
51.2391N -0.9450E
700
0650
-2.84
-2
0.84
-6.04
-5
1.04
1873
1200
-673
1026.1
1025
-1.1
75
070
5
8
7
-1
HGatwick A/P
51.1481N -0.1903E
700
0650
-3.79
-2
1.79
-6.55
-6
0.55
1688
1600
-88
1026.2
1026
-0.2
73
060
13
10
8
-2
IRAF Wittering
52.6114N -0.4612E
700
0650
-3.26
-3
0.26
-5.67
-5
0.67
1368
800
-568
1028.9
1028
-0.9
66
070
4
10
9
-1
RAF Fairford
51.68135N -1.79109E
700
0656
-2.91
101.6
104.51
-4.79
104.8
109.59
1201
-1280
-2481
1026.4
1026
-0.4
63
070
7
13
12
-1
JRAF Shawbury
52.7947N -2.6647E
700
0650
-3.34
-2
1.34
-5.47
-3
2.47
1427
400
-1027
1027.9
1028
0.1
97
070
27
10
5
-5
KRAF Benson
51.6203N -1.0987E
700
0650
-3.32
-3
0.32
-5.15
-4
1.15
1344
400
-944
1026.5
1027
0.5
61
010
51
9
8
-1
MRAF Valley
53.2527N -4.5365E
700
0650
-2.55
0
2.55
-5.05
-3
2.05
1343
1200
-143
1026.4
1026
-0.4
86
060
26
9
9
0
NLydd A/P
50.9561N 0.9392W
700
0650
0.25
0
-0.25
-6.01
-5
1.01
2681
2000
-681
1026.4
1026
-0.4
90
080
10
21
22
1
PRAF Kinloss
57.6456N -3.5635E
700
0650
-1.41
-4
-2.59
-2.83
-5
-2.17
864
400
-464
1030.4
1030
-0.4
150
130
20
8
3
-5
QNorwich A/P
52.6333N 1.3000W
700
0650
-0.14
-1
-0.86
-5.15
-4
1.15
2127
1200
-927
1029.4
1030
0.6
90
080
10
12
7
-5
SLuton A/P
51.8747N -0.3683E
700
0650
-2.92
-3
-0.08
-5.06
-5
0.06
1453
800
-653
1027.0
1027
0
68
060
8
12
8
-4
TCardiff Intl A/P
51.3967N -3.3433E
700
0650
0.55
0
-0.55
-3.01
-3
0.01
1695
1200
-495
1025.4
1025
-0.4
85
070
15
21
16
-5
UNewcastle A/P
55.0375N -1.6917E
700
0650
-0.96
2
2.96
-3.05
-2
1.05
1427
1600
173
1031.0
1031
0
130
VRB
0
7
2
-5
VBelfast / Aldergrove A/P
54.6633N -6.2258E
700
0650
-0.31
2
2.31
-2.38
0
2.38
1335
800
-535
1026.3
1026
-0.3
118
110
8
13
9
-4
WManchester A/P
53.3537N -2.2750E
700
0650
-1.15
0
1.15
-4.89
-4
0.89
2243
1600
-643
1028.3
1029
0.7
72
090
18
6
6
0
XGlasgow A/P
55.8719N -4.4331E
700
0650
-1.28
-1
0.28
-2.73
-3
-0.27
936
800
-136
1029.7
1030
0.3
67
090
23
9
4
-5
YEdinburgh A/P
55.9500N -3.3500E
700
0650
-0.83
-2
-1.17
-1.89
-3
-1.11
749
400
-349
1030.5
1031
0.5
73
VRB
0
7
3
-4
ZHeathrow A/P
51.4775N -0.4614E
700
0650
-0.73
-1
-0.27
-5.29
-4
1.29
2395
1200
-1195
1026.6
1027
0.4
75
050
25
9
6
-3
1Southampton A/P
50.9499N -1.3585E
700
0650
-0.80
-2
-1.2
-6.52
-7
-0.48
2394
2000
-394
1025.5
1025
-0.5
71
050
21
13
5
-8
2Leeds A/P
53.8618N -1.6653E
700
0650
-1.97
0
1.97
-3.53
-3
0.53
1219
1200
-19
1029.7
1030
0.3
82
090
8
9
8
-1
3Dublin A/P
53.4215N -6.2977E
800
0700
2.53
2
-0.53
-0.59
-2
-1.41
1708
1600
-108
1025.0
1025
0
124
130
6
17
13
-4
Stornaway A/P
58.2156N -6.3311E
700
0650
1.60
-4
-5.6
-2.51
-4
-1.49
2451
0
-2451
1027.6
1028
0.4
157
320
163
9
1
-8
4Tiree
56.5000N -6.8828E
700
0650
3.58
4
0.42
0.09
-2
-2.09
1592
2400
808
1026.8
1027
0.2
142
150
8
25
20
-5
5Benbecula
57.4811N -7.3628E
700
0650
5.06
2
-3.06
0.94
-2
-2.94
1898
1600
-298
1026.6
1027
0.4
156
170
14
20
8
-12
6Ronaldsway A/P
54.0853N -4.6320E
700
0650
4.78
3
-1.78
0.86
-1
-1.86
1860
1600
-260
1027.5
1028
0.5
116
100
16
24
21
-3
RAF Boulmer
55.4209N -1.6012E
700
0650
4.01
3
-1.01
0.11
-2
-2.11
1815
2000
185
1031.4
1031
-0.4
146
130
16
16
11
-5
Aberdeen A/P
57.2049N -2.2053E
700
0650
0.40
3
2.6
-1.16
-2
-0.84
1167
2000
833
1031.5
1031
-0.5
156
180
24
11
8
-3
Humberside A/P
53.5744N -0.3508E
700
0650
-2.38
1
3.38
-4.01
-2
2.01
1120
1200
80
1030.0
1031
1
89
080
9
9
6
-3
Islay A/P
55.6814N -6.2498E
700
0650
3.15
3
-0.15
0.03
-1
-1.03
1533
1600
67
1026.9
1027
0.1
131
130
1
21
8
-13
Doncaster A/P
53.4747N -1.0044E
700
0650
-2.02
-1
1.02
-3.48
-3
0.48
801
800
-1
1029.9
1031
1.1
71
050
21
7
5
-2
7Pembrey Sands Stn
51.7144N -4.3675E
700
0650
-1.08
-1
0.08
-3.41
-4
-0.59
1305
1200
-105
1025.0
1024
-1
84
070
14
10
6
-4
0RNAS Yeovilton
51.0063N -2.6428E
700
0650
-4.38
-1
3.38
-6.79
-5
1.79
1476
1600
124
1025.0
1025
0
65
070
5
9
9
0


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