[ 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: 17:41:29 24/11/2017 for this map view. This run created in 27.78 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 (131 hours) for EGUO - report not usable.
EGBE (8) Coventry A/P - METAR report more than six hours old (3100 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: 0.48° C - Wet: 3.03° C - Wind Speed: -3.8 Knots (RASP High) - Wind Deviation: 33.1 Degrees - Pressure: -0.3 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
2.91
4
1.09
0.18
0
-0.18
1658
1600
-58
1011.8
1012
0.2
289
230
59
9
3
-6
BCambridge A/P
52.2050N 0.1750W
1730
1720
2.95
3
0.05
-0.14
1
1.14
1949
800
-1149
1012.1
1012
-0.1
261
VRB
0
7
2
-5
CCarlisle A/P
54.9387N -2.8088E
1730
1720
0.32
3
2.68
-0.55
2
2.55
636
400
-236
1008.2
1008
-0.2
252
250
2
3
4
1
RAF Culdrose
50.0843N -5.2571E
1700
1650
5.23
8
2.77
3.20
3
-0.2
1342
2000
658
1013.3
1013
-0.3
358
330
28
7
4
-3
FExeter A/P
50.7372N -3.4058E
1730
1720
3.02
5
1.98
-0.32
2
2.32
2005
1200
-805
1013.2
1013
-0.2
312
340
28
3
4
1
RAF Odiham
51.2391N -0.9450E
1700
1650
2.97
3
0.03
0.19
2
1.81
1935
400
-1535
1012.6
1012
-0.6
313
350
37
3
2
-1
HGatwick A/P
51.1481N -0.1903E
1730
1720
1.96
6
4.04
-0.34
3
3.34
1600
1200
-400
1012.7
1012
-0.7
319
310
9
8
5
-3
IRAF Wittering
52.6114N -0.4612E
1700
1650
2.36
2
-0.36
0.43
-1
-1.43
1245
1200
-45
1011.7
1011
-0.7
241
220
21
11
6
-5
RAF Fairford
51.68135N -1.79109E
1700
1656
1.56
2.1
0.54
-0.86
101.2
102.06
1693
-39640
-41333
1012.6
1012
-0.6
248
000
112
6
0
-6
JRAF Shawbury
52.7947N -2.6647E
1700
1650
1.63
5
3.37
-0.39
0
0.39
1372
2000
628
1011.1
1011
-0.1
230
220
10
8
6
-2
KRAF Benson
51.6203N -1.0987E
1700
1650
1.90
-1
-2.9
-0.37
-2
-1.63
1593
400
-1193
1012.4
1012
-0.4
265
140
125
5
1
-4
LCambel Town
55.4372N -5.6864E
1700
1650
3.20
4
0.8
1.35
1
-0.35
1010
1200
190
1008.0
1007
-1
255
280
25
11
15
4
MRAF Valley
53.2527N -4.5365E
1700
1650
6.74
7
0.26
2.60
1
-1.6
1841
2400
559
1010.7
1011
0.3
282
280
2
20
14
-6
NLydd A/P
50.9561N 0.9392W
1730
1720
2.54
6
3.46
0.88
4
3.12
988
800
-188
1012.3
1012
-0.3
331
350
19
10
6
-4
ODundee A/P
56.4525N -3.0258E
1730
1720
2.27
2
-0.27
0.06
1
0.94
1074
400
-674
1005.4
1005
-0.4
254
270
16
17
11
-6
PRAF Kinloss
57.6456N -3.5635E
1700
1650
1.22
2
0.78
-0.58
0
0.58
980
800
-180
1002.5
1003
0.5
236
240
4
20
14
-6
QNorwich A/P
52.6333N 1.3000W
1730
1720
5.25
2
-3.25
-0.14
0
0.14
2274
800
-1474
1011.7
1012
0.3
264
220
44
7
5
-2
SLuton A/P
51.8747N -0.3683E
1730
1720
1.86
2
0.14
-0.41
0
0.41
1729
800
-929
1012.2
1012
-0.2
273
230
43
8
3
-5
TCardiff Intl A/P
51.3967N -3.3433E
1730
1720
3.57
5
1.43
-1.05
1
2.05
2687
1600
-1087
1012.8
1013
0.2
340
290
50
4
5
1
UNewcastle A/P
55.0375N -1.6917E
1730
1720
0.19
4
3.81
0.49
1
0.51
592
1200
608
1008.0
1007
-1
208
230
22
8
7
-1
VBelfast / Aldergrove A/P
54.6633N -6.2258E
1730
1720
3.27
2
-1.27
-0.88
1
1.88
2140
400
-1740
1009.7
1010
0.3
272
260
12
19
12
-7
WManchester A/P
53.3537N -2.2750E
1730
1720
3.07
4
0.93
-0.06
1
1.06
1741
1200
-541
1010.2
1011
0.8
213
320
107
12
7
-5
XGlasgow A/P
55.8719N -4.4331E
1730
1720
0.38
1
0.62
-0.81
0
0.81
837
400
-437
1006.7
1007
0.3
272
310
38
12
4
-8
YEdinburgh A/P
55.9500N -3.3500E
1730
1720
0.91
1
0.09
-0.34
0
0.34
728
400
-328
1006.2
1006
-0.2
227
240
13
12
9
-3
ZHeathrow A/P
51.4775N -0.4614E
1730
1720
3.76
6
2.24
0.64
1
0.36
1860
2000
140
1012.6
1012
-0.6
298
VRB
0
4
1
-3
1Southampton A/P
50.9499N -1.3585E
1730
1720
6.08
3
-3.08
0.05
1
0.95
2524
800
-1724
1013.0
1012
-1
336
000
24
4
0
-4
2Leeds A/P
53.8618N -1.6653E
1730
1720
4.45
1
-3.45
-0.05
0
0.05
2385
400
-1985
1009.2
1009
-0.2
242
250
8
16
10
-6
3Dublin A/P
53.4215N -6.2977E
1730
1730
1.75
2
0.25
-0.61
1
1.61
1243
400
-843
1012.2
1012
-0.2
273
260
13
15
15
0
Stornaway A/P
58.2156N -6.3311E
1730
1720
3.76
3
-0.76
0.59
1
0.41
1563
800
-763
1003.2
1003
-0.2
290
250
40
16
7
-9
4Tiree
56.5000N -6.8828E
1730
1720
3.98
4
0.02
1.35
0
-1.35
1233
1600
367
1006.2
1006
-0.2
278
300
22
7
12
5
5Benbecula
57.4811N -7.3628E
1730
1720
7.27
5
-2.27
1.41
-1
-2.41
2743
2400
-343
1005.6
1004
-1.6
316
290
26
29
17
-12
6Ronaldsway A/P
54.0853N -4.6320E
1730
1720
6.91
5
-1.91
1.34
0
-1.34
2576
2000
-576
1009.8
1009
-0.8
301
280
21
22
9
-13
RAF Boulmer
55.4209N -1.6012E
1700
1650
3.87
2
-1.87
1.13
-1
-2.13
1239
1200
-39
1007.5
1007
-0.5
249
111
14
-14
Aberdeen A/P
57.2049N -2.2053E
1730
1720
-0.58
1
1.58
-4.01
-3
1.01
1834
1600
-234
1003.0
1002
-1
252
240
12
12
9
-3
Humberside A/P
53.5744N -0.3508E
1730
1720
2.11
4
1.89
0.77
2
1.23
881
800
-81
1010.2
1010
-0.2
210
210
0
12
10
-2
Staverton A/P
51.8923N -2.1608E
1730
1720
1.22
4
2.78
-1.32
0
1.32
1672
1600
-72
1012.5
1012
-0.5
206
180
26
9
2
-7
Islay A/P
55.6814N -6.2498E
1730
1720
4.61
5
0.39
0.43
1
0.57
1998
1600
-398
1007.8
1007
-0.8
297
280
17
22
13
-9
Eglinton A/P
55.0428N -7.1611E
1730
1720
2.76
3
0.24
0.58
1
0.42
1169
800
-369
1009.8
1010
0.2
261
230
31
6
10
4
Doncaster A/P
53.4747N -1.0044E
1730
1720
2.90
4
1.1
0.99
0
-0.99
1037
1600
563
1010.4
1011
0.6
216
220
4
11
8
-3
7Pembrey Sands Stn
51.7144N -4.3675E
1700
1650
4.93
5
0.07
-0.39
1
1.39
3131
1600
-1531
1012.9
1013
0.1
296
300
4
8
7
-1
0RNAS Yeovilton
51.0063N -2.6428E
1700
1650
3.29
5
1.71
-1.17
2
3.17
2317
1200
-1117
1013.0
1012
-1
331
320
11
1
3
2


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