[ 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: 17:41:31 27/07/2017 for this map view. This run created in 29.61 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 (198 hours) for EGUO - report not usable.
EGBE (8) Coventry A/P - METAR report more than six hours old (219 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: 0.47° C - Wet: 0.45° C - Wind Speed: -4.12 Knots (RASP High) - Wind Deviation: 17.5 Degrees - Pressure: -0.7 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
19.99
16
-3.99
9.71
13
3.29
4485
1200
-3285
1005.4
1005
-0.4
237
320
83
19
5
-14
BCambridge A/P
52.2050N 0.1750W
1730
1720
19.80
19
-0.8
9.44
14
4.56
4460
2000
-2460
1004.8
1004
-0.8
239
230
9
17
6
-11
CCarlisle A/P
54.9387N -2.8088E
1730
1720
16.15
16
-0.15
10.66
11
0.34
2573
2000
-573
1000.1
999
-1.1
232
230
2
17
13
-4
RAF Culdrose
50.0843N -5.2571E
1700
1650
17.10
17
-0.1
13.57
13
-0.57
1613
1600
-13
1008.9
1008
-0.9
253
240
13
20
10
-10
FExeter A/P
50.7372N -3.4058E
1700
1650
18.70
19
0.3
11.61
10
-1.61
3219
3600
381
1007.4
1006
-1.4
256
250
6
16
15
-1
RAF Odiham
51.2391N -0.9450E
1730
1735
16.95
14
-2.95
13.19
14
0.81
1994
0
-1994
1006.8
1006
-0.8
240
270
30
18
8
-10
HGatwick A/P
51.1481N -0.1903E
1730
1720
18.08
16
-2.08
11.50
14
2.5
2999
800
-2199
1007.2
1007
-0.2
238
230
8
20
7
-13
IRAF Wittering
52.6114N -0.4612E
1700
1650
15.39
20
4.61
12.95
11
-1.95
1261
3600
2339
1004.2
1003
-1.2
251
220
31
5
17
12
RAF Fairford
51.68135N -1.79109E
1730
1732
18.37
18
-0.37
10.55
12
1.45
3552
2400
-1152
1005.9
1005
-0.9
256
260
4
23
15
-8
JRAF Shawbury
52.7947N -2.6647E
1700
1650
18.16
17
-1.16
10.05
12
1.95
3699
2000
-1699
1003.4
1002
-1.4
258
240
18
20
8
-12
KRAF Benson
51.6203N -1.0987E
1700
1650
19.27
17
-2.27
11.05
14
2.95
3732
1200
-2532
1005.7
1005
-0.7
237
250
13
18
9
-9
LCambel Town
55.4372N -5.6864E
1730
1720
14.30
14
-0.3
11.45
12
0.55
1432
800
-632
997.6
997
-0.6
170
100
70
7
5
-2
MRAF Valley
53.2527N -4.5365E
1700
1650
16.02
17
0.98
13.06
13
-0.06
1232
1600
368
1002.2
1001
-1.2
221
190
31
25
22
-3
NLydd A/P
50.9561N 0.9392W
1730
1720
17.64
19
1.36
13.05
14
0.95
1843
2000
157
1008.2
1007
-1.2
234
240
6
21
24
3
ODundee A/P
56.4525N -3.0258E
1730
1720
14.56
19
4.44
9.76
12
2.24
2925
2800
-125
997.5
997
-0.5
228
250
22
13
5
-8
PRAF Kinloss
57.6456N -3.5635E
1700
1650
14.24
15
0.76
11.02
11
-0.02
1576
1600
24
996.4
995
-1.4
271
270
1
5
9
4
QNorwich A/P
52.6333N 1.3000W
1730
1720
19.24
21
1.76
10.12
11
0.88
3630
4000
370
1004.6
1004
-0.6
227
230
3
11
12
1
SLuton A/P
51.8747N -0.3683E
1730
1720
19.27
18
-1.27
10.97
14
3.03
3848
1600
-2248
1005.4
1005
-0.4
232
240
8
18
12
-6
TCardiff Intl A/P
51.3967N -3.3433E
1730
1720
16.73
18
1.27
13.11
13
-0.11
1542
2000
458
1006.7
1006
-0.7
253
260
7
23
16
-7
UNewcastle A/P
55.0375N -1.6917E
1730
1720
17.22
15
-2.22
9.85
13
3.15
3418
800
-2618
1000.2
1000
-0.2
246
210
36
14
4
-10
VBelfast / Aldergrove A/P
54.6633N -6.2258E
1730
1720
16.02
15
-1.02
10.69
11
0.31
2638
1600
-1038
998.2
998
-0.2
229
240
11
19
8
-11
WManchester A/P
53.3537N -2.2750E
1730
1720
17.20
18
0.8
11.13
10
-1.13
2967
3200
233
1002.6
1002
-0.6
246
250
4
19
15
-4
XGlasgow A/P
55.8719N -4.4331E
1730
1720
15.48
15
-0.48
10.30
12
1.7
2428
1200
-1228
997.6
998
0.4
226
230
4
14
15
1
YEdinburgh A/P
55.9500N -3.3500E
1730
1720
13.71
18
4.29
10.52
10
-0.52
1491
3200
1709
998.3
998
-0.3
211
220
9
14
12
-2
ZHeathrow A/P
51.4775N -0.4614E
1730
1720
17.06
20
2.94
13.16
13
-0.16
1822
2800
978
1006.6
1006
-0.6
244
270
26
16
13
-3
1Southampton A/P
50.9499N -1.3585E
1730
1720
18.96
18
-0.96
11.54
11
-0.54
2959
2800
-159
1007.3
1006
-1.3
239
230
9
17
16
-1
2Leeds A/P
53.8618N -1.6653E
1730
1720
14.98
16
1.02
11.40
10
-1.4
2071
2400
329
1002.1
1002
-0.1
254
260
6
16
10
-6
3Dublin A/P
53.4215N -6.2977E
1730
1730
16.83
17
0.17
9.42
9
-0.42
3283
3200
-83
1000.7
1000
-0.7
245
250
5
20
19
-1
Stornaway A/P
58.2156N -6.3311E
1730
1720
14.94
15
0.06
10.49
11
0.51
1906
1600
-306
993.7
993
-0.7
197
180
17
18
15
-3
4Tiree
56.5000N -6.8828E
1730
1720
14.60
15
0.4
10.66
11
0.34
1641
1600
-41
995.3
995
-0.3
214
210
4
20
15
-5
5Benbecula
57.4811N -7.3628E
1730
1720
13.59
14
0.41
10.80
10
-0.8
1348
1600
252
993.5
993
-0.5
204
190
14
21
15
-6
6Ronaldsway A/P
54.0853N -4.6320E
1730
1720
14.92
16
1.08
12.00
12
0
1416
1600
184
1000.4
1000
-0.4
227
210
17
21
16
-5
RAF Boulmer
55.4209N -1.6012E
1700
1650
16.24
15
-1.24
10.98
12
1.02
2941
1200
-1741
999.7
1000
0.3
234
160
74
13
5
-8
Aberdeen A/P
57.2049N -2.2053E
1730
1720
15.48
17
1.52
10.02
8
-2.02
2517
3600
1083
997.5
997
-0.5
184
200
16
17
13
-4
Humberside A/P
53.5744N -0.3508E
1730
1720
14.84
19
4.16
11.45
11
-0.45
1624
3200
1576
1003.3
1002
-1.3
289
260
29
8
9
1
Staverton A/P
51.8923N -2.1608E
1730
1720
18.18
20
1.82
11.55
12
0.45
2946
3200
254
1005.4
1004
-1.4
241
260
19
23
10
-13
Islay A/P
55.6814N -6.2498E
1730
1720
14.79
16
1.21
11.22
11
-0.22
1649
2000
351
996.9
996
-0.9
244
230
14
7
10
3
Eglinton A/P
55.0428N -7.1611E
1730
1720
15.59
17
1.41
9.92
10
0.08
2590
2800
210
997.1
996
-1.1
223
240
17
19
17
-2
Doncaster A/P
53.4747N -1.0044E
1730
1720
16.34
17
0.66
12.01
12
-0.01
1908
2000
92
1002.9
1003
0.1
293
300
7
7
11
4
7Pembrey Sands Stn
51.7144N -4.3675E
1700
1650
16.46
18
1.54
13.29
13
-0.29
1431
2000
569
1006.0
1005
-1
239
240
1
20
27
7
0RNAS Yeovilton
51.0063N -2.6428E
1700
1650
18.25
20
1.75
12.42
10
-2.42
2687
4000
1313
1007.1
1006
-1.1
242
230
12
15
12
-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