[ 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.

A spatial map of the reports can be found here.


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 higher indicates RASP is close enough and can be relied upon.


This report: 13:42:24 05/08/2020 for this map view. This run created in 81.85 secs

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
1330
1320
24.07
26
1.93
10.37
12
1.63
5845
5600
-245
1012.1
1011
-1.1
212
210
2
18
17
-1
BCambridge A/P
52.2050N 0.1750W
1330
1320
23.35
27
3.65
13.92
10
-3.92
3890
6800
2910
1011.5
1011
-0.5
215
210
5
17
15
-2
DRAF Cosford
52.6400N -2.3056E
1100
1050
18.62
20
1.38
14.39
14
-0.39
2092
2400
308
1009.7
1009
-0.7
201
180
21
20
14
-6
RAF Culdrose
50.0843N -5.2571E
1300
1250
18.02
17
-1.02
16.38
17
0.62
795
0
-795
1010.8
1010
-0.8
198
190
8
21
18
-3
FExeter A/P
50.7372N -3.4058E
1330
1320
21.04
20
-1.04
15.82
17
1.18
2203
1200
-1003
1011.4
1011
-0.4
204
140
64
18
8
-10
RAF Odiham
51.2391N -0.9450E
1300
1250
21.37
21
-0.37
12.69
12
-0.69
3827
3600
-227
1012.8
1013
0.2
211
210
1
18
17
-1
IRAF Wittering
52.6114N -0.4612E
1330
1320
20.69
23
2.31
14.62
15
0.38
2598
3200
602
1010.7
1010
-0.7
214
220
6
21
16
-5
RAF Fairford
51.68135N -1.79109E
1330
1336
20.79
21
0.21
15.02
15
-0.02
2569
2400
-169
1011.2
1011
-0.2
208
230
22
21
14
-7
JRAF Shawbury
52.7947N -2.6647E
1330
1320
22.26
22
-0.26
14.73
13
-1.73
3365
3600
235
1007.7
1008
0.3
200
200
0
22
17
-5
KRAF Benson
51.6203N -1.0987E
900
0850
16.03
17
0.97
13.44
15
1.56
1347
800
-547
1012.1
1012
-0.1
198
190
8
17
10
-7
LCambel Town
55.4372N -5.6864E
1330
1320
14.63
16
1.37
13.72
15
1.28
552
400
-152
1000.7
1002
1.3
117
150
33
5
9
4
MRAF Valley
53.2527N -4.5365E
1300
1250
17.73
18
0.27
15.60
15
-0.6
932
1200
268
1004.7
1005
0.3
187
180
7
29
17
-12
NLydd A/P
50.9561N 0.9392W
1330
1320
19.54
21
1.46
12.70
15
2.3
2679
2400
-279
1014.6
1014
-0.6
220
230
10
17
19
2
ODundee A/P
56.4525N -3.0258E
1330
1320
16.15
18
1.85
13.15
14
0.85
1921
1600
-321
1001.9
1003
1.1
192
210
18
8
7
-1
PRAF Kinloss
57.6456N -3.5635E
1300
1250
18.35
19
0.65
12.98
12
-0.98
2361
2800
439
1000.6
1000
-0.6
238
230
8
12
12
0
QNorwich A/P
52.6333N 1.3000W
1330
1320
24.05
27
2.95
11.66
10
-1.66
4996
6800
1804
1011.5
1011
-0.5
218
210
8
16
15
-1
SLuton A/P
51.8747N -0.3683E
1330
1320
21.79
25
3.21
13.61
8
-5.61
3775
6800
3025
1011.8
1012
0.2
212
220
8
19
15
-4
TCardiff Intl A/P
51.3967N -3.3433E
1330
1320
20.35
20
-0.35
15.75
16
0.25
1987
1600
-387
1010.3
1010
-0.3
185
190
5
15
9
-6
UNewcastle A/P
55.0375N -1.6917E
1330
1320
20.40
21
0.6
15.70
14
-1.7
2182
2800
618
1004.8
1005
0.2
212
220
8
21
17
-4
VBelfast / Aldergrove A/P
54.6633N -6.2258E
1300
1250
15.47
17
1.53
14.97
16
1.03
439
400
-39
1000.1
1002
1.9
347
040
53
3
4
1
WManchester A/P
53.3537N -2.2750E
1330
1320
21.07
21
-0.07
15.78
14
-1.78
2464
2800
336
1007.6
1008
0.4
194
210
16
20
10
-10
XGlasgow A/P
55.8719N -4.4331E
1330
1320
16.23
17
0.77
13.33
14
0.67
1337
1200
-137
1001.5
1003
1.5
189
230
41
3
8
5
YEdinburgh A/P
55.9500N -3.3500E
1330
1320
17.78
17
-0.78
14.86
15
0.14
1522
800
-722
1001.9
1003
1.1
203
260
57
6
5
-1
ZHeathrow A/P
51.4775N -0.4614E
1330
1320
22.41
25
2.59
14.63
6
-8.63
3454
7600
4146
1012.4
1012
-0.4
210
200
10
17
15
-2
1Southampton A/P
50.9499N -1.3585E
1330
1320
20.35
20
-0.35
13.01
14
0.99
2908
2400
-508
1013.3
1013
-0.3
206
190
16
16
16
0
2Leeds A/P
53.8618N -1.6653E
1330
1320
20.81
19
-1.81
15.82
14
-1.82
2614
2000
-614
1007.0
1008
1
215
200
15
18
13
-5
3Dublin A/P
53.4215N -6.2977E
1330
1330
21.05
19
-2.05
16.30
16
-0.3
2162
1200
-962
1001.8
1002
0.2
219
200
19
23
4
-19
Stornaway A/P
58.2156N -6.3311E
1330
1320
14.31
14
-0.31
12.92
13
0.08
653
400
-253
998.7
999
0.3
188
170
18
12
11
-1
4Tiree
56.5000N -6.8828E
1330
1320
15.32
15
-0.32
13.97
14
0.03
565
400
-165
1000.2
1001
0.8
204
220
16
14
12
-2
5Benbecula
57.4811N -7.3628E
1330
1320
13.51
15
1.49
12.94
13
0.06
233
800
567
999.0
1000
1
212
220
8
17
13
-4
6Ronaldsway A/P
54.0853N -4.6320E
1330
1320
14.82
16
1.18
13.89
15
1.11
87
400
313
1003.4
1004
0.6
195
200
5
27
20
-7
RAF Boulmer
55.4209N -1.6012E
1300
1250
15.35
21
5.65
13.13
16
2.87
306
2000
1694
1004.8
1004
-0.8
185
200
15
13
13
0
Aberdeen A/P
57.2049N -2.2053E
1330
1320
20.87
20
-0.87
13.73
14
0.27
3300
2400
-900
1000.8
1001
0.2
220
220
0
12
13
1
Birmingham A/P
52.4602N -1.7576E
1330
1320
19.73
21
1.27
14.62
15
0.38
2512
2400
-112
1009.8
1010
0.2
203
200
3
20
11
-9
Humberside A/P
53.5744N -0.3508E
1330
1320
23.13
25
1.87
14.06
16
1.94
3824
3600
-224
1008.4
1008
-0.4
220
220
0
21
21
0
Staverton A/P
51.8923N -2.1608E
1330
1320
20.55
22
1.45
14.98
16
1.02
2406
2400
-6
1010.3
1010
-0.3
205
160
45
20
15
-5
Islay A/P
55.6814N -6.2498E
1330
1320
13.98
16
2.02
13.39
15
1.61
376
400
24
1000.7
1002
1.3
158
150
8
4
5
1
Eglinton A/P
55.0428N -7.1611E
1330
1320
14.47
17
2.53
13.39
15
1.61
637
800
163
1001.0
1002
1
211
250
39
5
6
1
Southend A/P
51.5714N 0.6956W
1330
1320
23.65
26
2.35
8.73
8
-0.73
5999
7200
1201
1012.9
1012
-0.9
210
200
10
17
17
0
Biggin Hill A/P
51.3308N 0.0325W
1330
1320
21.36
23
1.64
11.30
9
-2.3
4657
5600
943
1013.1
1013
-0.1
215
200
15
19
17
-2
London City A/P
51.5053N 0.0553W
1330
1320
23.59
25
1.41
10.09
8
-2.09
5405
6800
1395
1012.6
1012
-0.6
215
240
25
16
14
-2
East Midlands A/P
52.8311N -1.3281E
1330
1320
20.47
22
1.53
14.57
14
-0.57
2686
3200
514
1009.5
1009
-0.5
208
190
18
19
19
0
Doncaster A/P
53.4747N -1.0044E
1330
1320
22.83
24
1.17
15.13
14
-1.13
3161
4000
839
1008.2
1009
0.8
214
200
14
20
18
-2
Liverpool A/P
53.3340N -2.8500E
1330
1320
19.18
21
1.82
15.21
16
0.79
2293
2000
-293
1006.7
1007
0.3
185
200
15
18
13
-5
Wick A/P
58.4589N -3.0931E
1330
1320
18.47
18
-0.47
13.80
14
0.2
2037
1600
-437
1000.1
1000
-0.1
217
230
13
12
7
-5
7Pembrey Sands Stn
51.7144N -4.3675E
1300
1250
17.70
18
0.3
15.83
17
1.17
847
400
-447
1008.9
1008
-0.9
185
180
5
21
25
4
0RNAS Yeovilton
51.0063N -2.6428E
1330
1319
20.86
19
-1.86
15.78
16
0.22
2080
1200
-880
1011.8
1012
0.2
205
190
15
21
15
-6


Table Averages
Difference Averages: Dry: 0.92° C - Wet: -0.22° C - Wind Speed: -3.04 Knots (RASP High) - Wind Deviation: 16.1 Degrees - Pressure: 0.1 mb - Cloudbase: 245 ft
Difference calculations based on actual minus the forecast.
Averages that are greater than +/- 2 Celcius indicates forecast widely differs from actuals.

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)

Notes and Observations
EGNC (C) Carlisle A/P - METAR report more than six hours old (3838 hours) for EGNC - report not usable.


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 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