[ 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: 09:11:29 25/11/2017 for this map view. This run created in 27.44 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 (16 hours) for EGEC - report not usable.
EGUO (R) Colerne - METAR report more than six hours old (146 hours) for EGUO - report not usable.
EGBE (8) Coventry A/P - METAR report more than six hours old (3115 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: 3.52° C - Wind Speed: -6.85 Knots (RASP High) - Wind Deviation: 24.5 Degrees - Pressure: -0.6 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
900
0850
1.36
0
-1.36
-1.22
-1
0.22
1317
400
-917
1013.1
1013
-0.1
281
290
9
15
9
-6
BCambridge A/P
52.2050N 0.1750W
900
0850
1.67
1
-0.67
-1.57
0
1.57
1522
400
-1122
1013.5
1014
0.5
272
250
22
14
5
-9
CCarlisle A/P
54.9387N -2.8088E
900
0850
0.33
-1
-1.33
-1.01
-1
0.01
905
0
-905
1012.0
1011
-1
235
220
15
6
3
-3
RAF Culdrose
50.0843N -5.2571E
900
0850
7.08
6
-1.08
0.39
0
-0.39
3034
2400
-634
1021.4
1020
-1.4
316
310
6
15
13
-2
FExeter A/P
50.7372N -3.4058E
900
0850
1.08
0
-1.08
-0.71
0
0.71
1045
0
-1045
1018.7
1018
-0.7
307
VRB
0
8
2
-6
RAF Odiham
51.2391N -0.9450E
900
0850
1.90
2
0.1
-1.49
-1
0.49
1790
1200
-590
1015.9
1015
-0.9
282
270
12
15
7
-8
HGatwick A/P
51.1481N -0.1903E
900
0850
1.76
1
-0.76
-1.03
0
1.03
1446
400
-1046
1015.6
1015
-0.6
291
250
41
10
4
-6
IRAF Wittering
52.6114N -0.4612E
900
0850
1.65
2
0.35
-1.52
1
2.52
1585
400
-1185
1013.1
1012
-1.1
261
270
9
16
14
-2
RAF Fairford
51.68135N -1.79109E
900
0856
1.42
0.4
-1.02
-1.07
100.9
101.97
1370
-40200
-41570
1015.9
1016
0.1
271
000
89
12
0
-12
JRAF Shawbury
52.7947N -2.6647E
900
0850
3.01
2
-1.01
-1.29
0
1.29
2134
800
-1334
1014.3
1014
-0.3
275
310
35
18
4
-14
KRAF Benson
51.6203N -1.0987E
900
0850
0.92
1
0.08
-1.54
0
1.54
1342
400
-942
1015.6
1015
-0.6
280
190
90
13
3
-10
MRAF Valley
53.2527N -4.5365E
900
0850
6.41
5
-1.41
0.17
1
0.83
2778
1600
-1178
1015.9
1015
-0.9
311
290
21
23
16
-7
NLydd A/P
50.9561N 0.9392W
900
0850
2.37
1
-1.37
-0.52
0
0.52
1215
400
-815
1014.8
1015
0.2
303
290
13
13
7
-6
ODundee A/P
56.4525N -3.0258E
900
0850
2.83
1
-1.83
-0.67
-1
-0.33
1678
800
-878
1008.4
1007
-1.4
256
290
34
19
9
-10
PRAF Kinloss
57.6456N -3.5635E
900
0850
2.12
2
-0.12
1.01
0
-1.01
715
800
85
1005.3
1005
-0.3
255
240
15
20
17
-3
QNorwich A/P
52.6333N 1.3000W
900
0850
2.23
0
-2.23
-1.00
0
1
1317
0
-1317
1012.3
1012
-0.3
271
250
21
10
7
-3
SLuton A/P
51.8747N -0.3683E
900
0850
1.35
2
0.65
-1.89
0
1.89
1779
800
-979
1014.3
1014
-0.3
284
270
14
17
10
-7
TCardiff Intl A/P
51.3967N -3.3433E
900
0850
4.96
3
-1.96
0.48
1
0.52
2070
800
-1270
1017.7
1017
-0.7
295
310
15
18
9
-9
UNewcastle A/P
55.0375N -1.6917E
900
0850
0.54
1
0.46
-2.08
0
2.08
1433
400
-1033
1010.5
1009
-1.5
272
270
2
16
6
-10
VBelfast / Aldergrove A/P
54.6633N -6.2258E
900
0850
3.99
2
-1.99
-0.08
1
1.08
2131
400
-1731
1015.1
1015
-0.1
292
250
42
20
7
-13
WManchester A/P
53.3537N -2.2750E
900
0850
2.13
2
-0.13
0.57
1
0.43
1038
400
-638
1012.6
1013
0.4
244
210
34
8
5
-3
XGlasgow A/P
55.8719N -4.4331E
900
0850
-0.01
0
0.01
-1.15
-1
0.15
1035
400
-635
1011.4
1010
-1.4
259
250
9
11
7
-4
YEdinburgh A/P
55.9500N -3.3500E
900
0850
0.88
0
-0.88
-2.26
-1
1.26
1509
400
-1109
1010.4
1009
-1.4
253
230
23
15
8
-7
ZHeathrow A/P
51.4775N -0.4614E
900
0850
1.99
2
0.01
-1.14
1
2.14
1455
400
-1055
1015.4
1015
-0.4
289
270
19
13
7
-6
1Southampton A/P
50.9499N -1.3585E
900
0850
2.78
2
-0.78
-1.28
0
1.28
1697
800
-897
1016.9
1017
0.1
292
VRB
0
9
1
-8
2Leeds A/P
53.8618N -1.6653E
900
0850
1.87
2
0.13
-0.89
0
0.89
1700
800
-900
1012.0
1011
-1
287
270
17
13
8
-5
3Dublin A/P
53.4215N -6.2977E
1000
0900
2.68
1
-1.68
-1.75
0
1.75
2023
400
-1623
1018.6
1017
-1.6
280
270
10
18
16
-2
Stornaway A/P
58.2156N -6.3311E
900
0850
4.63
3
-1.63
0.48
2
1.52
2029
400
-1629
1007.2
1007
-0.2
302
290
12
23
10
-13
4Tiree
56.5000N -6.8828E
900
0850
6.41
4
-2.41
-0.88
1
1.88
3137
1200
-1937
1012.6
1011
-1.6
312
320
8
24
11
-13
5Benbecula
57.4811N -7.3628E
900
0850
7.89
4
-3.89
1.51
2
0.49
2998
800
-2198
1010.8
1010
-0.8
316
290
26
33
25
-8
6Ronaldsway A/P
54.0853N -4.6320E
900
0850
7.41
3
-4.41
2.09
1
-1.09
2469
800
-1669
1014.2
1014
-0.2
302
310
8
23
12
-11
RAF Boulmer
55.4209N -1.6012E
900
0850
3.70
1
-2.7
-0.33
-1
-0.67
1843
800
-1043
1009.4
1008
-1.4
284
250
34
19
11
-8
Aberdeen A/P
57.2049N -2.2053E
900
0850
1.82
2
0.18
-3.20
-2
1.2
2440
1600
-840
1004.9
1004
-0.9
275
260
15
21
11
-10
Humberside A/P
53.5744N -0.3508E
900
0850
1.19
1
-0.19
-1.35
1
2.35
1314
0
-1314
1011.6
1011
-0.6
247
220
27
13
7
-6
Staverton A/P
51.8923N -2.1608E
900
0850
1.83
2
0.17
-1.26
1
2.26
1600
400
-1200
1015.9
1016
0.1
254
250
4
12
7
-5
Islay A/P
55.6814N -6.2498E
900
0850
5.45
5
-0.45
0.49
2
1.51
2495
1200
-1295
1013.3
1012
-1.3
311
310
1
17
16
-1
Eglinton A/P
55.0428N -7.1611E
900
0850
3.61
3
-0.61
-0.09
2
2.09
2015
400
-1615
1015.8
1015
-0.8
283
220
63
14
9
-5
Doncaster A/P
53.4747N -1.0044E
900
0850
2.05
3
0.95
-1.22
1
2.22
1605
800
-805
1012.1
1013
0.9
261
260
1
11
9
-2
7Pembrey Sands Stn
51.7144N -4.3675E
900
0850
5.78
5
-0.78
1.15
2
0.85
2151
1200
-951
1018.2
1018
-0.2
303
300
3
19
14
-5
0RNAS Yeovilton
51.0063N -2.6428E
900
0850
2.12
2
-0.12
-0.77
0
0.77
1496
800
-696
1017.8
1017
-0.8
278
240
38
10
4
-6


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