[ 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: 15:41:28 24/02/2018 for this map view. This run created in 26.47 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 (22 hours) for EGEC - report not usable.
EGUO (R) Colerne - METAR report more than six hours old (2337 hours) for EGUO - report not usable.
EGBE (8) Coventry A/P - METAR report more than six hours old (5306 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: 0.27° C - Wet: 3° C - Wind Speed: -4.3 Knots (RASP High) - Wind Deviation: 16 Degrees - Pressure: -0.4 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
1500
1450
4.18
5
0.82
-4.33
-6
-1.67
3760
4400
640
1024.1
1023
-1.1
94
100
6
21
15
-6
BCambridge A/P
52.2050N 0.1750W
1530
1520
4.88
6
1.12
-4.83
-5
-0.17
4064
4400
336
1024.1
1023
-1.1
95
090
5
17
10
-7
CCarlisle A/P
54.9387N -2.8088E
1530
1520
5.79
6
0.21
-3.35
-4
-0.65
3999
4000
1
1025.1
1025
-0.1
114
110
4
13
10
-3
RAF Culdrose
50.0843N -5.2571E
1500
1450
6.15
5
-1.15
2.19
1
-1.19
1814
1600
-214
1017.2
1016
-1.2
96
080
16
22
26
4
FExeter A/P
50.7372N -3.4058E
1530
1520
6.31
6
-0.31
-2.11
-1
1.11
3620
2800
-820
1019.6
1019
-0.6
82
040
42
14
12
-2
RAF Odiham
51.2391N -0.9450E
1500
1450
4.81
5
0.19
-6.75
-6
0.75
5198
4400
-798
1021.0
1020
-1
82
060
22
17
12
-5
HGatwick A/P
51.1481N -0.1903E
1530
1520
4.48
5
0.52
-6.95
-5
1.95
4986
4000
-986
1021.3
1020
-1.3
81
070
11
20
16
-4
IRAF Wittering
52.6114N -0.4612E
1500
1450
4.77
7
2.23
-5.07
-6
-0.93
4368
5200
832
1024.3
1023
-1.3
99
090
9
17
12
-5
RAF Fairford
51.68135N -1.79109E
1500
1456
4.97
5.4
0.43
-4.34
104.2
108.54
4206
-39520
-43726
1021.5
1021
-0.5
84
070
14
18
13
-5
JRAF Shawbury
52.7947N -2.6647E
1500
1450
4.60
5
0.4
-4.08
-5
-0.92
3860
4000
140
1023.0
1022
-1
107
090
17
16
13
-3
KRAF Benson
51.6203N -1.0987E
1500
1450
4.93
7
2.07
-5.25
-8
-2.75
4559
6000
1441
1021.7
1021
-0.7
86
060
26
17
13
-4
MRAF Valley
53.2527N -4.5365E
1500
1450
7.29
6
-1.29
-4.62
-3
1.62
5010
3600
-1410
1021.4
1021
-0.4
131
050
81
5
6
1
NLydd A/P
50.9561N 0.9392W
1530
1520
4.89
5
0.11
-4.80
-4
0.8
4078
3600
-478
1021.4
1020
-1.4
78
070
8
25
24
-1
ODundee A/P
56.4525N -3.0258E
1530
1520
3.46
6
2.54
-0.24
1
1.24
1981
2000
19
1026.7
1026
-0.7
122
120
2
18
11
-7
PRAF Kinloss
57.6456N -3.5635E
1500
1450
4.99
8
3.01
-1.72
-4
-2.28
2853
4800
1947
1025.4
1025
-0.4
154
150
4
17
13
-4
QNorwich A/P
52.6333N 1.3000W
1530
1520
4.37
4
-0.37
-4.31
-1
3.31
3517
2000
-1517
1025.6
1025
-0.6
99
090
9
20
16
-4
SLuton A/P
51.8747N -0.3683E
1530
1520
3.82
5
1.18
-5.05
-4
1.05
4123
3600
-523
1022.8
1022
-0.8
94
090
4
19
11
-8
TCardiff Intl A/P
51.3967N -3.3433E
1530
1520
5.63
5
-0.63
-3.39
-2
1.39
3928
2800
-1128
1020.4
1020
-0.4
85
080
5
19
15
-4
UNewcastle A/P
55.0375N -1.6917E
1530
1520
4.63
5
0.37
-2.69
0
2.69
3293
2000
-1293
1026.5
1026
-0.5
127
120
7
17
12
-5
VBelfast / Aldergrove A/P
54.6633N -6.2258E
1530
1520
4.54
3
-1.54
-1.26
-1
0.26
2645
1600
-1045
1021.8
1022
0.2
137
120
17
16
13
-3
WManchester A/P
53.3537N -2.2750E
1530
1520
4.86
6
1.14
-4.75
-6
-1.25
4327
4800
473
1023.8
1023
-0.8
108
100
8
16
6
-10
XGlasgow A/P
55.8719N -4.4331E
1530
1520
5.87
6
0.13
-4.29
-4
0.29
4443
4000
-443
1024.7
1025
0.3
124
100
24
12
10
-2
YEdinburgh A/P
55.9500N -3.3500E
1530
1520
5.46
6
0.54
-3.63
-4
-0.37
3995
4000
5
1025.6
1025
-0.6
130
110
20
12
8
-4
ZHeathrow A/P
51.4775N -0.4614E
1530
1520
5.06
5
-0.06
-5.37
-5
0.37
4567
4000
-567
1021.9
1022
0.1
84
070
14
19
13
-6
1Southampton A/P
50.9499N -1.3585E
1530
1520
5.50
5
-0.5
-7.76
-5
2.76
5388
4000
-1388
1020.6
1020
-0.6
80
040
40
16
12
-4
2Leeds A/P
53.8618N -1.6653E
1530
1520
4.32
4
-0.32
-4.63
-2
2.63
4286
2400
-1886
1025.1
1024
-1.1
115
100
15
16
16
0
3Dublin A/P
53.4215N -6.2977E
1530
1530
4.55
4
-0.55
-1.20
-2
-0.8
2589
2400
-189
1020.8
1021
0.2
131
120
11
14
12
-2
Stornaway A/P
58.2156N -6.3311E
1530
1520
5.14
5
-0.14
-1.46
-2
-0.54
2856
2800
-56
1023.2
1024
0.8
169
200
31
19
11
-8
4Tiree
56.5000N -6.8828E
1530
1520
4.86
4
-0.86
0.56
-1
-1.56
1796
2000
204
1022.3
1023
0.7
148
150
2
27
22
-5
5Benbecula
57.4811N -7.3628E
1530
1520
5.22
4
-1.22
2.09
0
-2.09
1442
1600
158
1022.1
1023
0.9
160
160
0
25
18
-7
6Ronaldsway A/P
54.0853N -4.6320E
1530
1520
5.19
5
-0.19
-0.29
-2
-1.71
2598
2800
202
1022.9
1023
0.1
120
120
0
22
17
-5
RAF Boulmer
55.4209N -1.6012E
1500
1450
4.61
5
0.39
0.28
0
-0.28
2063
2000
-63
1027.2
1027
-0.2
145
130
15
23
20
-3
Aberdeen A/P
57.2049N -2.2053E
1530
1520
4.14
4
-0.14
-1.36
-1
0.36
2549
2000
-549
1027.5
1027
-0.5
160
160
0
21
17
-4
Humberside A/P
53.5744N -0.3508E
1530
1520
4.27
5
0.73
-2.77
0
2.77
3068
2000
-1068
1026.1
1026
-0.1
111
090
21
19
15
-4
Staverton A/P
51.8923N -2.1608E
1530
1520
5.51
6
0.49
-4.51
-3
1.51
4343
3600
-743
1021.9
1021
-0.9
89
070
19
15
9
-6
Islay A/P
55.6814N -6.2498E
1530
1520
4.54
4
-0.54
-0.64
-2
-1.36
2259
2400
141
1022.5
1023
0.5
140
140
0
25
18
-7
Eglinton A/P
55.0428N -7.1611E
1530
1520
5.46
5
-0.46
-1.77
0
1.77
3133
2000
-1133
1020.8
1022
1.2
143
110
33
14
13
-1
Doncaster A/P
53.4747N -1.0044E
1530
1520
5.23
6
0.77
-3.95
-1
2.95
3881
2800
-1081
1025.5
1026
0.5
111
090
21
16
10
-6
7Pembrey Sands Stn
51.7144N -4.3675E
1500
1450
6.53
8
1.47
-2.53
-3
-0.47
3923
4400
477
1020.0
1019
-1
108
150
42
15
5
-10
0RNAS Yeovilton
51.0063N -2.6428E
1500
1450
5.85
6
0.15
-3.91
-3
0.91
4156
3600
-556
1020.1
1019
-1.1
83
070
13
16
13
-3


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