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Chaseit · WispayrSouthern UK · 2026 season

Convective outlook

· Live · prism

Five-day categorical risksouthern UK

CAPE × 0-6 km shear derived from Open-Meteo via siphon, compiled into a categorical risk by the Prism stormfront_outlook lens. More data feeds (Blitzortung, Met Office UKV, GraphCast on bravo) land in later Stormfront phases.

Last computed · 17/04/2026, 22:15:12

Risk surface · southern UK · week peak MRGL
Today · peak MRGL
10× NONE2× MRGL
Chase-day strip · highest risk
Tomorrow
peak CAPE 140 J/kgpeak LPI 0.0
06
07
08
09
10
11
12
Today
17 Apr
NONE
No severe

No significant convection expected.

CAPE
60
shear
20
peak
09:00
Tomorrow
18 Apr
MRGL
Marginal

Isolated showers / weak storms possible (CAPE ~140 J/kg).

lightning
CAPE
140
shear
23
peak
18:00
Sunday
19 Apr
MRGL

Categorical scale

nonemrglslgtenhmdthigh
13
14
15
16
17
18
19
20
21
22
bar height + colour · CAPEhighlighted · 3-hr peak windowelectrification ≥ 0.5
Marginal

Isolated showers / weak storms possible (CAPE ~110 J/kg).

lightning
CAPE
110
shear
23
peak
14:00
Monday
20 Apr
MRGL
Marginal

Isolated showers / weak storms possible (CAPE ~110 J/kg).

lightning
CAPE
110
shear
19
peak
16:00
Tuesday
21 Apr
NONE
No severe

No significant convection expected.

CAPE
60
shear
9
peak
11:00