[ RASP UK Forecast (Stratus) ]


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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: 17:41:34 20/09/2017 for this map view. This run created in 32.98 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
EGUO (R) Colerne - METAR report more than six hours old (1518 hours) for EGUO - report not usable.
EGBE (8) Coventry A/P - METAR report more than six hours old (1539 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: 0.22° C - Wet: 0.1° C - Wind Speed: -3.27 Knots (RASP High) - Wind Deviation: 18.5 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
1700
1650
16.28
17
0.72
10.85
11
0.15
2500
2400
-100
1017.4
1016
-1.4
212
210
2
13
11
-2
BCambridge A/P
52.2050N 0.1750W
1730
1720
17.12
16
-1.12
10.47
12
1.53
2871
1600
-1271
1016.8
1016
-0.8
212
190
22
15
6
-9
CCarlisle A/P
54.9387N -2.8088E
1730
1720
15.03
16
0.97
12.44
13
0.56
1304
1200
-104
1010.4
1010
-0.4
181
180
1
17
8
-9
RAF Culdrose
50.0843N -5.2571E
1700
1650
15.58
14
-1.58
14.59
14
-0.59
574
0
-574
1014.6
1014
-0.6
200
190
10
21
14
-7
FExeter A/P
50.7372N -3.4058E
1730
1720
15.47
14
-1.47
12.92
12
-0.92
1220
800
-420
1015.9
1016
0.1
188
190
2
16
13
-3
RAF Odiham
51.2391N -0.9450E
1700
1650
15.41
16
0.59
11.13
10
-1.13
2141
2400
259
1017.7
1017
-0.7
210
210
0
15
11
-4
HGatwick A/P
51.1481N -0.1903E
1730
1720
14.94
17
2.06
10.79
11
0.21
1988
2400
412
1018.3
1017
-1.3
212
220
8
14
9
-5
IRAF Wittering
52.6114N -0.4612E
1700
1650
16.92
16
-0.92
11.44
11
-0.44
2566
2000
-566
1015.7
1015
-0.7
207
200
7
16
13
-3
RAF Fairford
51.68135N -1.79109E
1700
1656
15.77
16.5
0.73
11.82
10.8
-1.02
1947
2280
333
1016.3
1016
-0.3
200
210
10
16
15
-1
JRAF Shawbury
52.7947N -2.6647E
1700
1650
16.34
17
0.66
12.75
12
-0.75
1791
2000
209
1013.5
1013
-0.5
175
170
5
15
11
-4
KRAF Benson
51.6203N -1.0987E
1700
1650
15.69
17
1.31
11.36
9
-2.36
2105
3200
1095
1017.0
1016
-1
203
200
3
15
13
-2
LCambel Town
55.4372N -5.6864E
1730
1720
12.46
12
-0.46
11.92
12
0.08
376
0
-376
1008.2
1008
-0.2
333
350
17
8
9
1
MRAF Valley
53.2527N -4.5365E
1730
1734
15.34
16
0.66
14.45
15
0.55
446
400
-46
1010.0
1009
-1
182
170
12
24
21
-3
NLydd A/P
50.9561N 0.9392W
1730
1720
15.76
17
1.24
11.67
13
1.33
1710
1600
-110
1019.0
1018
-1
225
220
5
14
15
1
ODundee A/P
56.4525N -3.0258E
1730
1720
13.12
14
0.88
10.80
14
3.2
265
0
-265
1008.9
1008
-0.9
144
140
4
6
3
-3
PRAF Kinloss
57.6456N -3.5635E
1700
1650
13.96
13
-0.96
12.94
13
0.06
652
0
-652
1008.3
1008
-0.3
228
310
82
3
11
8
QNorwich A/P
52.6333N 1.3000W
1730
1720
17.66
17
-0.66
9.99
11
1.01
3151
2400
-751
1016.7
1016
-0.7
228
200
28
14
6
-8
SLuton A/P
51.8747N -0.3683E
1730
1720
15.42
16
0.58
10.67
11
0.33
2413
2000
-413
1016.9
1016
-0.9
208
200
8
17
9
-8
TCardiff Intl A/P
51.3967N -3.3433E
1730
1720
16.02
15
-1.02
13.34
14
0.66
1189
400
-789
1014.6
1015
0.4
169
160
9
19
7
-12
UNewcastle A/P
55.0375N -1.6917E
1700
1650
16.90
17
0.1
12.86
12
-0.86
2026
2000
-26
1011.6
1011
-0.6
196
170
26
12
6
-6
VBelfast / Aldergrove A/P
54.6633N -6.2258E
1730
1720
11.63
12
0.37
10.90
11
0.1
575
400
-175
1008.4
1009
0.6
345
330
15
9
11
2
WManchester A/P
53.3537N -2.2750E
1730
1720
16.03
16
-0.03
12.40
13
0.6
1843
1200
-643
1013.0
1013
0
179
190
11
15
5
-10
XGlasgow A/P
55.8719N -4.4331E
1730
1720
13.85
15
1.15
13.60
15
1.4
339
0
-339
1008.0
1008
0
193
VRB
0
3
3
0
YEdinburgh A/P
55.9500N -3.3500E
1730
1720
15.37
17
1.63
13.09
13
-0.09
1151
1600
449
1008.4
1009
0.6
191
220
29
10
11
1
ZHeathrow A/P
51.4775N -0.4614E
1730
1720
15.52
17
1.48
11.70
10
-1.7
1769
2800
1031
1017.6
1017
-0.6
199
220
21
12
13
1
1Southampton A/P
50.9499N -1.3585E
1730
1720
16.13
15
-1.13
11.45
10
-1.45
1905
2000
95
1017.7
1017
-0.7
206
210
4
14
11
-3
2Leeds A/P
53.8618N -1.6653E
1730
1720
16.06
16
-0.06
12.13
12
-0.13
2208
1600
-608
1012.9
1013
0.1
194
210
16
11
9
-2
3Dublin A/P
53.4215N -6.2977E
1730
1730
14.34
15
0.66
13.88
14
0.12
349
400
51
1008.4
1008
-0.4
284
280
4
6
9
3
Stornaway A/P
58.2156N -6.3311E
1730
1720
12.24
12
-0.24
7.93
9
1.07
1926
1200
-726
1008.8
1009
0.2
326
330
4
8
5
-3
4Tiree
56.5000N -6.8828E
1730
1720
12.88
12
-0.88
9.00
10
1
1664
800
-864
1009.0
1009
0
346
010
24
11
9
-2
5Benbecula
57.4811N -7.3628E
1730
1720
12.61
12
-0.61
7.99
9
1.01
2117
1200
-917
1009.3
1010
0.7
336
340
4
10
5
-5
6Ronaldsway A/P
54.0853N -4.6320E
1730
1720
15.23
15
-0.23
14.64
15
0.36
301
0
-301
1008.9
1008
-0.9
185
180
5
25
21
-4
RAF Boulmer
55.4209N -1.6012E
1700
1650
15.32
16
0.68
13.03
12
-1.03
1262
1600
338
1011.2
1011
-0.2
178
140
38
12
8
-4
Aberdeen A/P
57.2049N -2.2053E
1730
1720
13.39
14
0.61
12.63
13
0.37
600
400
-200
1009.0
1009
0
177
140
37
9
4
-5
Humberside A/P
53.5744N -0.3508E
1730
1720
17.89
18
0.11
11.60
12
0.4
2851
2400
-451
1014.4
1013
-1.4
216
200
16
17
10
-7
Staverton A/P
51.8923N -2.1608E
1730
1720
15.49
17
1.51
11.90
12
0.1
1773
2000
227
1015.4
1015
-0.4
189
220
31
16
9
-7
Islay A/P
55.6814N -6.2498E
1730
1720
12.04
12
-0.04
10.93
11
0.07
659
400
-259
1008.5
1009
0.5
344
330
14
8
8
0
Eglinton A/P
55.0428N -7.1611E
1730
1720
12.06
12
-0.06
10.39
11
0.61
1002
400
-602
1009.1
1009
-0.1
354
030
36
8
4
-4
Doncaster A/P
53.4747N -1.0044E
1730
1720
17.45
18
0.55
12.19
12
-0.19
2327
2400
73
1014.1
1014
-0.1
201
190
11
14
9
-5
7Pembrey Sands Stn
51.7144N -4.3675E
1700
1650
15.44
16
0.56
14.68
15
0.32
428
400
-28
1013.2
1013
-0.2
186
190
4
23
27
4
0RNAS Yeovilton
51.0063N -2.6428E
1700
1650
15.52
16
0.48
12.48
12
-0.48
1430
1600
170
1016.7
1016
-0.7
195
200
5
16
11
-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