Forecaster: I.A.F. NCO Giuseppe PISCOPO LATEST SATELLITE HRV IMAGE 07.45 UTC /09.45 LT 500hPa ANALISYS SURFACE ANALISYS Upper FCST (500hPa) Today 14:00 LT SIGNIFICANT WEATHER SFC-10000 FT Today 14:00 LT SKC/FEW CuAc 030/XXX RIETI SCT/ISOL BKN CuScAcAs 025/XXX ISOL EMBD CB 020/XXX ISOL RAIN TSRA SHRA AND OBSC MON 10m WIND AND TEMPERATURE 12.00 UTC 14.00 LT RIETI 10m WIND AND TEMPERATURE 15.00 UTC 17.00 LT RIETI 850 hPa WIND AND TEMPERATURE RIETI 12.00 UTC 14.00 LT 850 hPa WIND AND TEMPERATURE RIETI 15.00 UTC 17.00 LT 700 hPa WIND AND TEMPERATURE RIETI 12.00 UTC 14.00 LT 700 hPa WIND AND TEMPERATURE RIETI 15.00 UTC 17.00 LT TOTAL CLOUD COVER 12.00 12.00 UTC UTC 14.00 LT RIETI TOTAL CLOUD COVER 15.00 UTC 17.00 LT RIETI 3h ACCUMULATED PRECIPITATION 09.00-12.00 UTC 11.00-14.00 LT 3h ACCUMULATED PRECIPITATION 12.00-15.00 UTC 14.00-17.00 LT WEATHER PHENOMENA 12.00 UTC 14.00 LT RIETI WEATHER PHENOMENA 15.00 UTC 17.00 LT RIETI FCST SOUNDING OVER RIETI at 12.00/Utc - unstable atmosphere at all levels. - Thermal activity up to 2600-2800 mt - Wind shear between 1500 and 3000 mt - Cold advection in the upper levels - Risk of SHRA/TSRA starting at 15.30 LT CROSS SECTION OVER RIETI 08/08/2015 ASL 5000 m 4000 m WIND 12:00 UTC 5-7 AC/AS FREEZING LEVEL 4300-4400 m 4-6 TCU/CB 3000 m 150/07 kt 2000 m 2600 m 2400 m 2800 m 2600 m 320/05kt TSRA/SHRA 300/05 kt 1000 m 500 m GND 398 m LOCAL TIME TEMP 340/05kt 1200 32°C 1300 34°C 1400 1500 1600 1700 35°C 35°C 34°C 34°C 1800 32°C 1900 30°C OUTLOOK 09/08/2015 SYNOPTIC SITUATION CYCLONIC CIRCULATION AFFECTS CENTRAL AND SOUTHERN ITALY WHILE A LOW PRESSURE AREA APPROACHES THE NORTHWEST OF ITALY. CLOUD COVER SCT LOC BKN ALREADY IN THE LATE MORNING. LOC ISOL TCU/CB IN THE AFTERNOON. PHENOMENA LOCAL SHRA OR TSRA OVER INLAND ISOL TCU /CB ISOL TSRA/SHRA TEMPERATURE Tmax_RIETI=34°C OUTLOOK 10/08/2015 SYNOPTIC SITUATION A LOW PRESSURE AREA, WITH MINIMUM ON THE LIGURIAN GULF, AFFECTING ALL ITALIAN REGIONS. . CLOUD COVER BKN ALREADY IN THE MORNING. LOC TCU/ EMBD CB CB SHRA/TSRA WEATHER PHENOMENA WIDESPREAD SHRA AND TSRA MAINLY OVER INLAND TEMPERATURE Tmax_RIETI=29°C