GEFS data tables

Select Run, Variable, Location and press Show table. Model inventory

Run

  • 00z
  • 06z
  • 12z
  • 18z

Variable

  • 850hPa C
  • 2m max temp C
  • 2m min temp C
  • MSLP
  • Precipitation
  • Snow

Location

  • London
  • Birmingham
  • Belfast
  • Cardiff
  • Edinburgh
  • Newcastle
  • Aberdeen
  • Berkhamsted
  • Brighton
  • Cairngorms
  • Carlisle
  • Glasgow
  • Inverness
  • Liverpool
  • Manchester
  • Norwich
  • Nottingham
  • Peterborough
  • Plymouth
  • Reading
  • Snowdonia
  • York
  • Dublin ROI
  • Cork ROI
  • Galway ROI

London Start: Mon 12 OCT 2026

Snow Run: 00z

Clusters

Percentage of runs which fall into each cluster.

Summarise by hour:
Mon 12,0
100%
Mon 12,6
100%
Mon 12,12
100%
Mon 12,18
100%
Tue 13,0
100%
Tue 13,6
100%
Tue 13,12
100%
Tue 13,18
10%
90%
Wed 14,0
100%
Wed 14,6
3%
97%
Wed 14,12
61%
39%
Wed 14,18
81%
19%
Thu 15,0
94%
6%
Thu 15,6
100%
Thu 15,12
100%
Thu 15,18
100%
Fri 16,0
94%
6%
Fri 16,6
52%
48%
Fri 16,12
6%
94%
Fri 16,18
6%
94%
Sat 17,0
3%
97%
Sat 17,6
3%
97%
Sat 17,12
3%
94%
3%
Sat 17,18
3%
90%
6%
Sun 18,0
6%
81%
13%
Sun 18,6
10%
71%
19%
Sun 18,12
13%
74%
13%
Sun 18,18
13%
68%
19%
Mon 19,0
16%
71%
13%
Mon 19,6
13%
74%
13%
Mon 19,12
26%
71%
3%
Mon 19,18
32%
61%
6%
Tue 20,0
32%
65%
3%
Tue 20,6
39%
58%
3%
Tue 20,12
48%
52%
Tue 20,18
52%
48%
Wed 21,0
65%
35%
Wed 21,6
65%
35%
Wed 21,12
3%
65%
32%
Wed 21,18
3%
61%
35%
Thu 22,0
3%
58%
39%
Thu 22,6
61%
39%
Thu 22,12
68%
32%
Thu 22,18
58%
42%
Fri 23,0
61%
39%
Fri 23,6
58%
42%
Fri 23,12
65%
35%
Fri 23,18
61%
39%
Sat 24,0
3%
58%
39%
Sat 24,6
3%
55%
42%
Sat 24,12
3%
61%
35%
Sat 24,18
3%
58%
39%
Sun 25,0
3%
65%
32%
Sun 25,6
3%
65%
32%
Sun 25,12
3%
71%
26%
Sun 25,18
3%
3%
68%
26%
Mon 26,0
3%
13%
55%
29%
Mon 26,6
6%
10%
55%
29%
Mon 26,12
6%
13%
45%
35%
Mon 26,18
6%
16%
45%
32%
Tue 27,0
6%
16%
48%
29%
Tue 27,6
6%
16%
48%
29%
Tue 27,12
6%
23%
42%
29%
Tue 27,18
6%
23%
42%
29%

Key

MSLP mB

<981mB 981 to 995mB 996mB to 1010mB 1011mB to 1025mB 1026mB to 1040mB >1040mB

Threshold exceedance

Percentage of ensemble members meeting your threshold at each timestep. Computed from the data table below - change the threshold and press Apply.

Run / DT12,012,612,1212,1813,013,613,1213,1814,014,614,1214,1815,015,615,1215,1816,016,616,1216,1817,017,617,1217,1818,018,618,1218,1819,019,619,1219,1820,020,620,1220,1821,021,621,1221,1822,022,622,1222,1823,023,623,1223,1824,024,624,1224,1825,025,625,1225,1826,026,626,1226,1827,027,627,1227,18
301013101210131014101310181023102710281028102510231022102110201022102510291032103510361037103610361036103610361035103610371035103510341032103010271023101810171016101510121012101310131014101610171016101710171018102010231024102510261027102810311031103210321032
291014101510141016101610191023102710291029102510231019101610141016102010241026102910291029102810281028102810271027102810271026102410201019101710161015101510141015101410141014101510161017101810201021102210241027102810311030103110291029102910291029102910281027
281014101410151016101610181022102710281027102410221019101810171018102010241026102910311032103310331031102810241024102410231022102310231023102210221020102110221024102610281028103010301030103010311031103210331034103410331032103210321032103210321031103110301029
271013101410151016101510181024102710281027102310221020102010191021102610311033103610371038103810391039103910381039103910401039104010391039103710361036103610341034103410341034103410341034103410351034103410321032103110311031103110301030102810261023102010181015
261013101410151016101510181023102710291028102410241022102110201019102110261030103310341035103410351035103410321031102910271026102410211018101610151013101410161019102110221023102410251025102410231021102110191018101610141012101110101011101210131012101210091006
251014101410141015101510181022102610261026102410241023102310211020102010251029103210351036103710391040104110401041104010391037103610341033103110291027102810281029102910311030103010301030102910301030103010271026102310211019101910211024102610271027102710261027
241013101310131014101410171022102510261026102210211020101910181019102110261029103110321032103210321031103110301032103110291025102110171014101310131012101210131015101710201022102510261027102810281029103010311033103310321031103010281028102610261025102410221022
231014101410141015101410181023102710291029102510231023102210211021102410281031103510361038103810391039104010391040103910391037103710351034103210331034103510341034103310331031103110301030102910301029103010291028102710261024102210201019101610161020102210241026
221014101510151015101510171023102810301030102810281026102510251025102610301032103410351036103610361036103610351036103510361034103410321031102810281028102810281029103010311032103410341034103310341032103210291028102510221020102010221024102610281029103010301030
211013101410141015101410181023102710281028102410231020101810171018102110251028103210341036103810391039103810351033102810261025102510241022102210241025102610271027102610261025102410231021101910171014101210111012101410151018102010201021102210241026102810301031
201013101410141015101510191025102910311031102810261022102110201021102310281031103410361037103810401040104110401041104010401037103610341031102610251023102210191019102110231025102610271026102410231021102010191018101710161016101610161017101710171017101710171018
1910141015101510161016101710241028102910291027102610251025102310221022102210231025102610271027102710271027102710291029103010291030102910281025102510241024102410241023102210211021101910201019102010191019101910181017101510111006998993990988987988987988
181014101510151016101710191024102810301031102810271025102410221021102110251028103010331035103610371037103810381039103910391038103710361036103510351034103410331034103310341032103310331033103210321030102910271026102610281028102910281027102610241021102010181017
171014101410141016101510181023102710281027102310201018101710191022102510291030103310351036103610381038103810371037103610361035103610331030102710261025102610251025102310231022102110201020101910191019102010211023102210231021102010181016101510151014101310111010
161014101410131015101410171022102710281029102710251023102210201018102010261029103110311030102910271024102110181016101610201016101110121014101410131016102110241026102710271026102610251024102310221020102010191019102010231024102510251024102210221021102010191018
151013101310131016101610191024102810291028102610251023102210211020102210271031103410361038103810391040104010381039103810371036103710351035103310331032103210301029102810281027102710271027102510231021102010171015101410141015101510131004100010061011101610181018
141013101410141015101510181023102510261025102110191016101510161016101810231027103110341036103510351034103310311029102810281026102610261025102410251025102610261027102810301030103110311031103110311031103010291029102710251022102010161012101010071003100210081012
131013101310141015101610191024102810291028102410231021102110181017102010261029103210341035103510351035103410311029102510211018101910191020102110231023102510241024102310221021102210221023102310251026102610241024102210211020101810161015101810191018101510141016
12101310131013101410141016102110261029103010271026102410241023102310231026102810301032103410341036103710381039104110411042104110411040104010391039103810381036103610341034103510361035103410311028102310191015101210051001995988989986987989993996997999
111013101410141015101510191024102710281028102510241022102210211021102310271029103010311033103310351036103710371038103710361034103410321031102810281026102510241023102210231022102410251026102610261025102610251024102310231020101810151015101410141014101410121011
101014101410141015101510171022102610281028102510231022102110211022102210251029103210331035103610371036103610361036103510351033103310311030102910281026102410211021102110231025102810301031103110311030102810261025102510251025102510231021101910171014101210091009
91014101410151015101510171022102610291029102610251022101910161014101810221023102410241024102210221023102510261028102810301029102910261024102310231022102110191017101610161016101710171016101310131012101410161018101810201022102310221021102010201020102010201020
81014101410141014101410171021102510281028102510231020101810171016101810221026102810301032103210321030102710261027102610261024102310201018101710181019101910171016101410131013101410151018101910221023102410241025102610271027102810281028102910291028102810271027
7101410141014101510161019102310271029102910261024102210211019101910231027102910301030103010281028102710241022102010221026102410221018101510131013101310141016101810191020101910201019102110221023102310221021102010181017101510141013101310121012101010061000999
61014101410141015101510181023102710291029102610251023102310221022102110241026102910301031103210321031103010281028102710271027102910271026102310211019102010201023102310241024102510241023102110181015101410111012101310141014101310081005100510071008100910091008
51013101410141015101510181023102710291029102610241022102210211020102110251028103110321033103310331031102810251024102310201017101710151015101510151013101110091008100910131016101810191020102110221023102310241025102510251025102610261025102410231021101910161014
4101310141015101610171019102210271027102610221020101810181016101710191023102610281029103010301030103010301030103110321033103110311030102910281027102510241022102210211022102210231022102210221022102110211020101810161013101110111008100710041002997994993993
31015101610161017101810191023102810291028102410241022102110211020102110241027102910311033103510371038104010401040103910391038103710351034103310321031103010281027102610261024102410231024102310251026102710281030103010281026102310191015101110079999969971004
21013101410151016101710191024102810291028102510241022102110181016101710231027103210351038104010421042104310421043104110411039103910371036103310291023102010221021101810181017101810201023102510281031103310341035103410331033103310341034103310321031102910281025
11014101410141015101510181024102810311032102910271026102410231023102310261027102910301031103110321032103310331034103510351034103310311031102910291026102510231023102310241025102610251025102410251024102510251026102510261025102510251027102910301030103010281027
01014101410141015101510181023102710281028102510231021102010181017102010251029103110331034103510371038103810371037103510351033103310311029102510221022102110211021102010181016101710181019101610131007100410071010101210141016101810211022102310221021101910151011

Notes

DT is day of the month and the time in GMT

Information

GEFS is run by National Centre for Environmental Prediction (NCEP)

Updates

4 times per day 07:15 GMT, 13:15 GMT, 19:15 GMT, 01:15 GMT

Ensemble model with 30 pertubations plus the control run