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Posts Tagged ‘FEWW Hurricane Scale’

EXTREMELY DANGEROUS CATEGORY 4 MICHAEL INTENSIFYING

Posted by feww on October 10, 2018

FIRE-EARTH Science will issue regular updates at 15-min intervals via FIRE-EARTH PULSARS.


LIFE-THREATENING STORM SURGE, HURRICANE FORCE WINDS AND HEAVY RAINFALL EXPECTED ALONG THE NE GULF COAST  –NHC

MICHAEL is currently a Cat. 4Ag hurricane on FEWW New Hurricane Scale

SUMMARY OF STATUS AS OF 04:00 AM CDT (09:00 UTC) –NHC
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LOCATION: 28.3N, 86.5W
ABOUT 140 MI (225 KM) SSW OF PANAMA CITY FLORIDA
ABOUT 130 MI (215KM) SSW OF APALACHICOLA
MOVEMENT: N OR 360 DEGREES AT 13 MPH (20 KM/H)
MAXIMUM SUSTAINED WINDS: 140 MPH (220 KM/H)
MINIMUM CENTRAL PRESSURE: 943 MB (27.85 INCHES)

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HURRICANE NATE MOVING RAPIDLY OVER CENTRAL GULF OF MEXICO –NHC

Posted by feww on October 7, 2017

NATE packing 80 mph (130 km/h) sustained winds

SUMMARY OF STATUS as of 4:00 AM CDT (09:00 UTC)
———————————————-
Time: 4:00 AM CDT Sat Oct 7
Location: 24.5°N 87.0°W [~ 345 mi, or 550km SSE of the mouth of MISSISSIPPI RIVER]
Moving: NNW at 22 mph [NNW, or 340 degrees, at  22 mph, or 35 km/h]
Min pressure: 987 mb, or 29.15 in
Max sustained winds: 80 mph [~130 km/h, Cat. 1 hurricane force on FEWW Hurricane Scale]

Deadly Storm System

The storm has killed about 30 people in Central America, according to local reports.

 

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Hurricane MARIA Becomes a Super Storm

Posted by feww on September 19, 2017

[NOTE: FEWW DIAG PROPA]

UPDATE: MARIA CONTINUES WNW TOWARD VIRGIN ISLANDS AND PUERTO RICO –NHC

[FEWW FORECAST: MARIA sustained winds could intensify to 320 km/h with probability of 60%]

UPDATE: Current Status as of 11:00 AM AST Tue Sep 19
Location: 16.3°N, 63.1°W
Moving: WNW at 10 mph
Min pressure: 927 mb
Max sustained winds: 160 mph

POTENTIALLY CATASTROPHIC HURRICANE MARIA CONTINUES WEST- NORTHWESTWARD TOWARD THE VIRGIN ISLANDS AND PUERTO RICO, PREPARATIONS AGAINST LIFE-THREATENING STORM SURGE AND RAINFALL FLOODING AND DESTRUCTIVE WINDS SHOULD BE RUSHED TO COMPLETION –NHC

Status as of 11:00 PM AST Mon Sep 18

Max sustained winds: 160 mph [~ 260 km/h, Cat. 5 hurricane on FEWW New Hurricane Scale]
Location: 15.5°N, 61.4°W
Moving: WNW at 9 mph
Min pressure: 924 mb

[NOTE: FEWW DIAG PROPA]

  • Additional details available via FIRE-EARTH PULSARS.

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MARIA INTENSIFYING, EXPECTED TO BECOME A MAJOR HURRICANE LATER TODAY –NHC

Posted by feww on September 18, 2017

MARIA Expected to Become a Major Hurricane Late Monday —National Hurricane Center

MARIA CONTINUING TO STRENGTHEN – THE EYE IS EXPECTED TO MOVE THROUGH THE LEEWARD ISLANDS LATE MONDAY AFTERNOON OR MONDAY EVENING –NHC

UPDATE: Current Status as of 2:00 PM AST Mon Sep 18
Max sustained: 125 mph [~ 200 km/h, Cat. 3B on FEWW New Hurricane Scale]
Location: 14.9°N, 60.4°W
Moving: WNW at 10 mph
Min pressure: 956 mb

Status as of 8:00 AM AST Mon Sep 18
Max sustained: 110 mph [~ 177 km/h, Cat. 2B on FEWW New Hurricane Scale]
Location: 14.6°N, 59.7°W
Moving: WNW at 12 mph
Min pressure: 967 mb

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Cyclone ITA Intensifying

Posted by feww on April 8, 2014

SEVERE TROPICAL CYCLONE IN CORAL SEA
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Severe Tropical Cyclone ITA (23P) Targeting Northern Australia

Tropical Cyclone ITA could strengthen to a category 4A hurricane equivalent force, packing sustained winds of about 210km/h, with wind gusts of more than 250km/h, on its approach to northern Australia coastline.

At 06:00 UTC on April 8, 2014, the cyclone was  positioned at 11.8ºS, 152.9ºE  (+/- 35km), according to ABOM.

ITA was moving northwestward at about 5km/h.

ITA-2
Tropical Cyclone ITA (23P), WV Satellite Image (FIRE-EARTH ENHANCEMENT) at 08:32UTC on April 8, 2014.  Initial image sourced from UW/CIMSS.

ITA projecetd track
Severe Tropical Cyclone ITA (23P) – Projected track Map. Source: ABOM

Australian Bureau of Meteorology (ABOM) said:

SEVERE TROPICAL CYCLONE ITA, CATEGORY 3, remains south of Papua New Guinea and is about 1030 km east of Lockhart River, and 920 km east northeast of Cooktown. The system has moved slowly westwards over the past few hours.

Severe Tropical Cyclone ITA is expected to remain too far offshore to have a significant influence on the weather along the Queensland coast through until at least the end of Wednesday; however the threat is expected to increase later this week. 

Note:

A Severe Tropical Cyclone 3 on the Australian scale punches winds speeds equivalent to a category 1 hurricane .
A Severe Tropical Cyclone 4 on the Australian scale is equivalent to a category 2-3 hurricane.

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FEWW New Hurricane Scale

Posted by feww on September 3, 2008

FEWW New Hurricane Scale Makes Hurricane Classification More Meaningful!

FEWW’s New Hurricane Scale is based on the Saffir-Simpson Hurricane Scale and provides a more detailed definition of hurricane forces.

Size Description

To make the classification of tropical cyclones even more descriptive, FIRE-EARTH recommends the addition of following suffixes for storm size to denote the category:

  • Midget hurricanes (m). With the average radius from the storm’s center of circulation to its outermost closed isobar (ROCI) in four quadrants measuring less than two degrees of latitude [222.2 km or 138.1 miles.]
  • Small. Small Hurricanes (s).  ROCI measuring between 2 and 3 degrees of latitude [222km< ROCI< 333km]
  • Regular. Average Hurricanes (r). ROCI measuring between 3 and 6 degrees of latitude [333km< ROCI< 667km]
  • Large. Large Hurricanes (g). ROCI of between 6 and 8 degrees of latitude [667km< ROCI< 889km]
  • Monster. Very Large Hurricanes (x). ROCI of larger than 8 degrees of latitude [ROCI> 889km]

Example: Hurricane GRETA, with ROCI of 960km, the largest ever recorded Atlantic hurricane, which reached a maximum sustained winds of about 225km/h on November 5, 1956 may be represented as a Monster hurricane, or 4Ax category hurricane on the FEWW New Hurricane Scale.

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