danielw
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| (Moderator) |
| Sun Aug 25 2013 07:48 PM |
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Re: Tropical Storm Fernand in the Bay of Campeche`
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Dropsonde information Courtesy of TropicalAtlantic.com
Very unusual to see an INVEST dropsonde from 25,000 feet. I can't recall ever seeing one.
This dropsonde was released to the East of Brownsville, TX. At cruise flight level of 25,000 feet.
http://tropicalatlantic.com/recon/archiv...&mission=01
Product: Air Force Temp Drop (Dropsonde) Message (UZNT13 KNHC)
Transmitted: 25th day of the month at 21:25Z
Aircraft: Air Force Aircraft (Last 3 digits of the tail number are 309)
Mission Purpose: Investigate second suspect area (flight in the North Atlantic basin)
Mission Number: 1
Observation Number: 03
Part A...
Date: Near the closest hour of 21Z on the 25th day of the month
Highest Mandatory Level For Which Wind Was Reported: 400mb
Coordinates: 25.5N 92.3W (View map)
Location: 324 miles (522 km) to the E (95°) from Brownsville, TX, USA.
Marsden Square: 082 (About)
Level Geo. Height Air Temp. Dew Point Wind Direction Wind Speed
1017mb (30.03 inHg) Sea Level (Surface) 27.2°C (81.0°F) 24.1°C (75.4°F) 360° (from the N) 8 knots (9 mph)
1000mb 146m (479 ft) 25.8°C (78.4°F) 23.3°C (73.9°F) 20° (from the NNE) 9 knots (10 mph)
925mb 831m (2,726 ft) 22.2°C (72.0°F) 20.1°C (68.2°F) 150° (from the SSE) 12 knots (14 mph)
850mb 1,563m (5,128 ft) 18.0°C (64.4°F) Approximately 12°C (54°F) 165° (from the SSE) 15 knots (17 mph)
700mb 3,200m (10,499 ft) 9.0°C (48.2°F) Approximately -3°C (27°F) 170° (from the S) 15 knots (17 mph)
500mb 5,910m (19,390 ft) -6.3°C (20.7°F) -7.3°C (18.9°F) 155° (from the SSE) 11 knots (13 mph)
400mb 7,630m (25,033 ft) -15.9°C (3.4°F) -15.9°C (3.4°F) 130° (from the SE) 8 knots (9 mph)
A small layer of drier air from 10,000 feet down to 5,000 feet. Or from the 700mb level down to 850mb.