Weather Discussion 7-5-2011. Tropical Storm Arlene at Landfall.

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Presentation transcript:

Weather Discussion

Tropical Storm Arlene at Landfall

Microwave Imagery of Tropical Storm Arlene at Landfall

Brownsville, TX Radar

500-mb Analysis (12Z on 6/30 – Thursday Morning)

U.S. Surface Analysis (12Z on 6/30 – Thursday Morning)

N.C. Surface Analysis (12Z on 6/30 – Thursday Morning)

GSO Sounding (12Z on 6/30 – Thursday Morning)

Dry air aloft (00Z on Thursday)…

500-mb Analysis (00Z on 7/1 – Thursday Evening)

U.S. Surface Analysis (00Z on 7/1 – Thursday Evening)

N.C. Surface Analysis (00Z on 7/1 – Thursday Evening)

GSO Sounding (00Z on 7/1 – Thursday Evening)

GSO Back Trajectories (00Z on 7/1 – Thursday Evening)

500-mb Analysis (12Z on 7/1 – Friday Morning)

U.S. Surface Analysis (12Z on 7/1 – Friday Morning)

N.C. Surface Analysis (12Z on 7/1 – Friday Morning)

GSO Sounding (12Z on 7/1 – Friday Morning)

Visible Satellite Imagery (Friday Afternoon at 2:00PM)

Water Vapor Imagery (Friday Afternoon at 2:00PM)

IR Satellite Imagery (Friday Afternoon at 4:00PM)

A little bit about transverse cirrus bands… “The ideal case for band production appeared to be a strong, isolated convective system that developed, matured, and dissipated without interacting with any other convective storm” (Lenz et al. [2009], 1365). “Transverse bands were more commonly observed to emerge near the end of the mature stage of the [convective] system and persist through the decay stage of the system” (Lenz et al. [2009], 1365). “Transverse bands were observed at all hours of the day, though they were most common during the nighttime hours of this study” (Lenz et al. [2009], 1368). “The average time lag between convection initiation and the first observation of transverse bands was 7 hours, and the average duration of the bands was about 9 hours” (Lenz et al. [2009], 1369, 1372). Most commonly develop in regions of upper-level divergence and a strong relative vorticity gradient

Geographic Distribution (May – August 2006) Lenz et al. (2009) pg. 1368

Transverse Bands and Aviation Turbulence Lenz et al. (2009) pg. 1364

500-mb Analysis (00Z on 7/2 – Friday Evening)

U.S. Surface Analysis (00Z on 7/2 – Friday Evening)

N.C. Surface Analysis (00Z on 7/2 – Friday Evening)

GSO Sounding (00Z on 7/2 – Friday Evening)

GSO Back Trajectories (00Z on 7/2 – Friday Evening)

500-mb Analysis (12Z on 7/2 – Saturday Morning)

U.S. Surface Analysis (12Z on 7/2 – Saturday Morning)

N.C. Surface Analysis (12Z on 7/2 – Saturday Morning)

GSO Sounding (12Z on 7/2 – Saturday Morning)

500-mb Analysis (00Z on 7/3 – Saturday Evening)

U.S. Surface Analysis (00Z on 7/3 – Saturday Evening)

N.C. Surface Analysis (00Z on 7/3 – Saturday Evening)

GSO Sounding (00Z on 7/3 – Saturday Evening)

GSO Back Trajectories (00Z on 7/3 – Saturday Evening)

500-mb Analysis (12Z on 7/3 – Sunday Morning)

U.S. Surface Analysis (12Z on 7/3 – Sunday Morning)

N.C. Surface Analysis (12Z on 7/3 – Sunday Morning)

GSO Sounding (12Z on 7/3 – Sunday Morning)

500-mb Analysis (00Z on 7/4 – Sunday Evening)

U.S. Surface Analysis (00Z on 7/4 – Sunday Evening)

N.C. Surface Analysis (00Z on 7/4 – Sunday Evening)

GSO Sounding (00Z on 7/4 – Sunday Evening)

GSO Back Trajectories (00Z on 7/4 – Sunday Evening)

500-mb Analysis (12Z on 7/4 – Monday Morning)

U.S. Surface Analysis (12Z on 7/4 – Monday Morning)

N.C. Surface Analysis (12Z on 7/4 – Monday Morning)

GSO Sounding (12Z on 7/4 – Monday Morning)

Visible Satellite Imagery (Monday Afternoon at 4:45PM)

IR Satellite Imagery (Monday Afternoon at 4:45PM)

Water Vapor Imagery (Monday Afternoon at 4:45PM)

Visible Satellite Imagery (Monday Evening at 6:45PM)

IR Satellite Imagery (Monday Evening at 6:45PM)

Water Vapor Imagery (Monday Evening at 6:45PM)

Total Precipitation for July 4th

500-mb Analysis (00Z on 7/5 – Monday Evening)

U.S. Surface Analysis (00Z on 7/5 – Monday Evening)

N.C. Surface Analysis (00Z on 7/5 – Monday Evening)

GSO Sounding (00Z on 7/5 – Monday Evening)

GSO Back Trajectories (00Z on 7/5 – Monday Evening)

500-mb Analysis (12Z on 7/5 – Tuesday Morning)

U.S. Surface Analysis (12Z on 7/5 – Tuesday Morning)

N.C. Surface Analysis (12Z on 7/5 – Tuesday Morning)

GSO Sounding (12Z on 7/5 – Tuesday Morning)

Visible Satellite Imagery (Tuesday Morning at 8:30AM)

IR Satellite Imagery (Tuesday Morning at 8:30AM)

Water Vapor Imagery (Tuesday Morning at 8:30AM)

Sizzlin’ Savannah… Savannah Area (ThreadEx Station)ThreadEx Station) Consecutive Days Maximum Temperature >= 90.0 degrees F Years: Rank # Days End Date / 4/ / 8/ /14/ /27/ /22/1999 End Date is the last day of the run. This station's record may include data from more than one, possibly incompatible, locations. It reflects the longest available record for the Savannah Area.

Soggy Forecast???