Blended Total Preciptable Water 18 UTC 19 October 2012 Severe Weather Signature of sharp gradient of moisture in Blended TPW imagery Moderate trough of.

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Presentation transcript:

Blended Total Preciptable Water 18 UTC 19 October 2012 Severe Weather Signature of sharp gradient of moisture in Blended TPW imagery Moderate trough of moist advection

Blended TPW Percent of Normal 18 UTC 19 October 2012 Severe Weather Signature of sharp gradient of moisture in the TPW Percent of Normal Blended imagery

METSAT IR 18 UTC 19 October 2012 Severe Weather along dry line that have produced t-storms

SA National Severe Weather Warnings: 19 October h00 SAST Current warning: Eastern Cape Province Updated: 19/10/ :27:54 Validity: to Type: Warning. Take action Subject: HEAVY RAIN AND VERY COLD CONDITIONS Detail: 1. HEAVY FALLS OF RAIN (>50MM) ARE EXPECTED IN PLACES OVER THE SOUTHERN PARTS. 2. VERY COLD CONDITIONS ARE EXPECTED IN PLACES OVER THE NORTH-EASTERN INTERIOR. Current warning: Gauteng Province Updated: 19/10/ :27:54 Validity: to Type: Watch. Be prepared Subject: SEVERE THUNDERSTORMS Detail: 1. SEVERE THUNDERSHOWERS ARE EXPECTED IN PLACES Current warning: Kwazulu Natal Province Updated: 19/10/ :27:54 Validity: to Type: Warning. Take action Subject: HEAVY RAIN Detail: WARNING: HEAVY FALLS OF RAIN (>50MM) ARE EXPECTED IN PLACES WATCH: SEVERE THUNDERSHOWERS ARE EXPECTED IN PLACES OVER THE INTERIOR. Current warning: Mpumalanga Province Updated: 19/10/ :27:54 Validity: to Type: Watch. Be prepared Subject: SEVERE THUNDERSTORMS Detail: 1. SEVERE THUNDERSHOWERS ARE EXPECTED IN PLACES OVER THE HIGHVELD AND ESCARPMENT. Current warning: Western Cape Province Updated: 19/10/ :27:54 Validity: to Type: Warning. Take action Subject: HEAVY RAIN AND HIGH SEAS Detail: WARNING: HEAVY FALLS OF RAIN (>50MM) ARE EXPECTED IN PLACES OVER THE SOUTHERN PARTS. WATCH: HIGH SEAS WITH WAVE HEIGHTS BETWEEN 6 TO 9M ARE EXPECTED BETWEEN CAPE COLUMBINE AND CAPE AGULHAS.

250% % of normal Blended TPW Percent of Normal 06 UTC 20 October 2012

Blended TPW 06 UTC 20 October 2012 METSAT VIS 0515 UTC 20 Oct 2012METSAT IR 0515 UTC 20 Oct 2012

Port Alfred Flooding Pictures mm Global Hydro- Estimator 3day totals through 12 UTC 20 October 2012

250% % of normal Blended Total Precipitable Water (TPW) and 850 hPa Winds Blended TPW Percent of Normal 12 UTC 20 Oct 2012 METSAT VIS Severe Storm RGB METSAT WV METSAT VIS 12 UTC 20 Oct 2012

Blended TPW for around 12 UTC 21 October 2012 moist dry moist