Tropical Atlantic: Live Decoder Results: High Density (HDOB) Messages from NOAA (URNT15 KWBC)

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Tropical Atlantic Experimental Live Reconnaissance Decoder

Decoded data from last 30 minutes: NOAA HDOB (URNT15) (4) (Minutes since ob are noted)

Product: NOAA High Density (HDOB) Message (URNT15 KWBC)
Transmitted: 8th day of the month at 16:07Z
Date: September 8, 2008
Aircraft: Lockheed WP-3D Orion (Reg. Num. N43RF)
Storm Number: 09
Storm Name: Ike (in the North Atlantic basin)
Mission Number: 13

Observation Number: 02

HDOB Observations

Independent Calculations from Tropical Atlantic ( About )

Time

Coordinates

Aircraft
Static Air Pressure

Aircraft
Geopotential Height

Extrapolated
Surface Pressure

D-value

Flight Level Wind (30 sec. Avg.)

Air Temp.

Dew Point

Peak (10 sec. Avg.)
Flight Level Wind

SFMR
Peak (10s Avg.) Sfc. Wind

SFMR
Rain Rate

Estimated Surface Wind (30 sec. Avg.)
Using Estimated Reduction Factor

Peak Wind at Flight Level to
Est. Surface Reduction Factor

15:57:30Z

27.617N 82.483W

783.1 mb
(~ 23.12 inHg)

2,267 meters
(~ 7,438 feet)

1016.0 mb
(~ 30.00 inHg)

From 90° at 26 knots
(From the E at ~ 29.9 mph)

15.7°C
(~ 60.3°F)

6.0°C
(~ 42.8°F)

27 knots
(~ 31.0 mph)

15:58:00Z

27.600N 82.500W

783.1 mb
(~ 23.12 inHg)

2,268 meters
(~ 7,441 feet)

1015.9 mb
(~ 30.00 inHg)

From 87° at 26 knots
(From the E at ~ 29.9 mph)

15.8°C
(~ 60.4°F)

5.7°C
(~ 42.3°F)

27 knots
(~ 31.0 mph)

15:58:30Z

27.567N 82.533W

783.0 mb
(~ 23.12 inHg)

2,268 meters
(~ 7,441 feet)

1015.9 mb
(~ 30.00 inHg)

From 87° at 25 knots
(From the E at ~ 28.7 mph)

15.8°C
(~ 60.4°F)

5.9°C
(~ 42.6°F)

26 knots
(~ 29.9 mph)

15:59:00Z

27.533N 82.550W

783.5 mb
(~ 23.14 inHg)

2,262 meters
(~ 7,421 feet)

1015.6 mb
(~ 29.99 inHg)

From 88° at 26 knots
(From the E at ~ 29.9 mph)

16.1°C
(~ 61.0°F)

5.5°C
(~ 41.9°F)

27 knots
(~ 31.0 mph)

15:59:30Z

27.517N 82.600W

783.2 mb
(~ 23.13 inHg)

2,265 meters
(~ 7,431 feet)

1015.7 mb
(~ 29.99 inHg)

From 87° at 26 knots
(From the E at ~ 29.9 mph)

15.9°C
(~ 60.6°F)

5.9°C
(~ 42.6°F)

27 knots
(~ 31.0 mph)

16:00:00Z

27.500N 82.633W

783.2 mb
(~ 23.13 inHg)

2,264 meters
(~ 7,428 feet)

1015.6 mb
(~ 29.99 inHg)

From 87° at 25 knots
(From the E at ~ 28.7 mph)

16.0°C
(~ 60.8°F)

6.0°C
(~ 42.8°F)

25 knots
(~ 28.7 mph)

16:00:30Z

27.483N 82.667W

783.4 mb
(~ 23.13 inHg)

2,264 meters
(~ 7,428 feet)

1015.8 mb
(~ 30.00 inHg)

From 89° at 25 knots
(From the E at ~ 28.7 mph)

15.9°C
(~ 60.6°F)

6.0°C
(~ 42.8°F)

26 knots
(~ 29.9 mph)

16:01:00Z

27.467N 82.700W

783.3 mb
(~ 23.13 inHg)

2,264 meters
(~ 7,428 feet)

1016.1 mb
(~ 30.01 inHg)

From 88° at 25 knots
(From the E at ~ 28.7 mph)

15.6°C
(~ 60.1°F)

6.2°C
(~ 43.2°F)

26 knots
(~ 29.9 mph)

16:01:30Z

27.450N 82.733W

783.2 mb
(~ 23.13 inHg)

2,264 meters
(~ 7,428 feet)

1015.8 mb
(~ 30.00 inHg)

From 86° at 24 knots
(From the E at ~ 27.6 mph)

15.8°C
(~ 60.4°F)

6.2°C
(~ 43.2°F)

25 knots
(~ 28.7 mph)

16:02:00Z

27.433N 82.767W

783.4 mb
(~ 23.13 inHg)

2,264 meters
(~ 7,428 feet)

1015.8 mb
(~ 30.00 inHg)

From 89° at 24 knots
(From the E at ~ 27.6 mph)

15.8°C
(~ 60.4°F)

6.0°C
(~ 42.8°F)

24 knots
(~ 27.6 mph)

16:02:30Z

27.400N 82.817W

783.4 mb
(~ 23.13 inHg)

2,260 meters
(~ 7,415 feet)

1015.3 mb
(~ 29.98 inHg)

From 92° at 24 knots
(From the E at ~ 27.6 mph)

15.7°C
(~ 60.3°F)

6.1°C
(~ 43.0°F)

25 knots
(~ 28.7 mph)

16:03:00Z

27.383N 82.850W

783.3 mb
(~ 23.13 inHg)

2,257 meters
(~ 7,405 feet)

1015.2 mb
(~ 29.98 inHg)

From 92° at 24 knots
(From the E at ~ 27.6 mph)

15.7°C
(~ 60.3°F)

5.9°C
(~ 42.6°F)

25 knots
(~ 28.7 mph)

15 knots
(~ 17.2 mph)

0 mm/hr
(~ 0 in/hr)

14.4 knots (~ 16.6 mph)

60.0%

16:03:30Z

27.367N 82.883W

783.5 mb
(~ 23.14 inHg)

2,260 meters
(~ 7,415 feet)

1015.6 mb
(~ 29.99 inHg)

From 90° at 25 knots
(From the E at ~ 28.7 mph)

15.8°C
(~ 60.4°F)

5.9°C
(~ 42.6°F)

25 knots
(~ 28.7 mph)

14 knots
(~ 16.1 mph)

0 mm/hr
(~ 0 in/hr)

14.0 knots (~ 16.1 mph)

56.0%

16:04:00Z

27.350N 82.917W

783.4 mb
(~ 23.13 inHg)

2,260 meters
(~ 7,415 feet)

1015.5 mb
(~ 29.99 inHg)

From 91° at 25 knots
(From the E at ~ 28.7 mph)

15.8°C
(~ 60.4°F)

6.0°C
(~ 42.8°F)

25 knots
(~ 28.7 mph)

13 knots
(~ 14.9 mph)

0 mm/hr
(~ 0 in/hr)

13.0 knots (~ 14.9 mph)

52.0%

16:04:30Z

27.333N 82.950W

783.4 mb
(~ 23.13 inHg)

2,260 meters
(~ 7,415 feet)

1015.6 mb
(~ 29.99 inHg)

From 91° at 25 knots
(From the E at ~ 28.7 mph)

15.7°C
(~ 60.3°F)

6.2°C
(~ 43.2°F)

25 knots
(~ 28.7 mph)

13 knots
(~ 14.9 mph)

0 mm/hr
(~ 0 in/hr)

13.0 knots (~ 14.9 mph)

52.0%

16:05:00Z

27.317N 82.983W

783.5 mb
(~ 23.14 inHg)

2,258 meters
(~ 7,408 feet)

1015.5 mb
(~ 29.99 inHg)

From 91° at 24 knots
(From the E at ~ 27.6 mph)

15.7°C
(~ 60.3°F)

6.2°C
(~ 43.2°F)

25 knots
(~ 28.7 mph)

14 knots
(~ 16.1 mph)

1 mm/hr
(~ 0.04 in/hr)

13.4 knots (~ 15.5 mph)

56.0%

16:05:30Z

27.283N 83.017W

783.4 mb
(~ 23.13 inHg)

2,259 meters
(~ 7,411 feet)

1015.6 mb
(~ 29.99 inHg)

From 90° at 25 knots
(From the E at ~ 28.7 mph)

15.5°C
(~ 59.9°F)

6.5°C
(~ 43.7°F)

25 knots
(~ 28.7 mph)

13 knots
(~ 14.9 mph)

0 mm/hr
(~ 0 in/hr)

13.0 knots (~ 14.9 mph)

52.0%

16:06:00Z

27.267N 83.050W

783.3 mb
(~ 23.13 inHg)

2,261 meters
(~ 7,418 feet)

1015.6 mb
(~ 29.99 inHg)

From 89° at 25 knots
(From the E at ~ 28.7 mph)

15.6°C
(~ 60.1°F)

6.5°C
(~ 43.7°F)

26 knots
(~ 29.9 mph)

15 knots
(~ 17.2 mph)

1 mm/hr
(~ 0.04 in/hr)

14.4 knots (~ 16.6 mph)

57.7%

16:06:30Z

27.233N 83.067W

783.3 mb
(~ 23.13 inHg)

2,261 meters
(~ 7,418 feet)

1015.7 mb
(~ 29.99 inHg)

From 90° at 25 knots
(From the E at ~ 28.7 mph)

15.3°C
(~ 59.5°F)

7.3°C
(~ 45.1°F)

26 knots
(~ 29.9 mph)

15 knots
(~ 17.2 mph)

0 mm/hr
(~ 0 in/hr)

14.4 knots (~ 16.6 mph)

57.7%

16:07:00Z

27.217N 83.100W

783.4 mb
(~ 23.13 inHg)

2,259 meters
(~ 7,411 feet)

1015.7 mb
(~ 29.99 inHg)

From 89° at 24 knots
(From the E at ~ 27.6 mph)

15.3°C
(~ 59.5°F)

7.3°C
(~ 45.1°F)

25 knots
(~ 28.7 mph)

17 knots
(~ 19.5 mph)

0 mm/hr
(~ 0 in/hr)

16.3 knots (~ 18.8 mph)

68.0%

Time

Coordinates

Aircraft
Static Air Pressure

Aircraft
Geopotential Height

Extrapolated
Surface Pressure

D-value

Flight Level Wind (30 sec. Avg.)

Air Temp.

Dew Point

Peak (10 sec. Avg.)
Flight Level Wind

SFMR
Peak (10s Avg.) Sfc. Wind

SFMR
Rain Rate

Estimated Surface Wind (30 sec. Avg.)
Using Estimated Reduction Factor

Peak Wind at Flight Level to
Est. Surface Reduction Factor

HDOB Observations

Independent Calculations from Tropical Atlantic ( About )

At 15:57:30Z (first observation), the observation was 25 miles (39 km) to the S (183°) from Tampa, FL, USA.
At 16:07:00Z (last observation), the observation was 65 miles (105 km) to the SW (217°) from Tampa, FL, USA.

Please note, suspect coordinates are not plotted.

Suspect values are noted by an asterisk (*). Extrapolated surface pressures often read low and at times may be very incorrect, such as during altitude changes. You may want to be suspect of any large pressure drops for a short period of time which are surrounded by periods where the pressure was very stable. Significant observations that are not suspect are noted in bold.