| REGIONAL FLASH WARNINGS OF SEVERE WEATHER |
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These warnings are issued to help the public make informed decisions that protect their life, welfare and property in the event of severe weather.
They are issued when fixed weather thresholds are met, see the guide
below for more details.
Current warnings:
For details, click on the red regions on the map below or
select a region from the table.
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Make sure you know what to do when severe weather is forecast, follow our severe
weather advice. For more detailed weather information in your area, contact
Weathercall.
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| UK EARLY WARNINGS OF SEVERE WEATHER |
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These warnings are issued to help the public make informed decisions that protect their life, welfare and property in the event of severe weather.
They are issued when fixed weather thresholds are met, see
the guide below for more details.
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Current warnings:
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There are no early warnings currently in force.
Make sure you know what to do when severe weather is forecast, follow our severe
weather advice. For more detailed weather information in your area, contact
Weathercall.
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| GUIDE TO WEATHER
WARNINGS |
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Regional flash warnings of severe weather and UK early
warnings of severe weather are issued when the following conditions
are expected:
- Severe gales
- Heavy snow
- Heavy rain
- Dense fog
- Freezing rain/widespread icy roads
These warnings are classified as exceptionally severe when
the following conditions are expected:
- Severe gales/storms
- Very heavy snowfall, blizzards or drifting snow
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| Term used |
Meaning |
| Severe Gales |
Gusts of 70 m.p.h. or more. |
| Severe Gales/storms |
Gusts of 80 m.p.h. or more. |
| Heavy Snow |
Snow falling at a rate of approx.
2 cm/hour or more expected for
at least two hours. |
| Blizzards/drifting
snow |
Moderate or heavy snow accompanied
by winds of 30 m.p.h. or
more with visibility reduced to 200 m or less, or drifting
snow giving rise to similar conditions. |
| Very heavy snowfall,
blizzards or drifting snow |
Expected to give depths of
15 cm or more potentially resulting in widespread dislocation
of communications. Blizzards are severe when visibility
is reduced to near zero. |
| Heavy rain |
Expected to persist for at least
two hours and to give at least
15 mm within a three-hour period, or a period of rainfall
of sufficient intensity to cause flooding on already saturated
ground (includes snow-melt), i.e. around 25 mm/day. |
| Dense Fog |
Visibility generally less than
50 m. |
| Freezing rain/widespread
icy roads |
Generally occurs when rain freezes
on contact with road surfaces. |
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These warnings are produced in association with the
Civil Contingencies Secretariat
in the Cabinet Office
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