Situation Map
Legend
SystemTimePositionMovement (kts)Winds (kts)Pressure (mb)Category
FERNANDA202100Z18.2N 140.4WW 1150998
GREG202100Z14.2N 116.4WW 09451003
08E202100Z13.3N 123.9WWSW 06251009
07W201800Z27.7N 158.1EW 07251006
Tropical Storm FERNANDA Tropical Storm GREG Tropical Depression 08E Tropical Depression 07W Situation Map

What is a Hurricane?

A hurricane (or typhoon, or severe tropical cyclone), the strongest storm on Earth, is a cyclonic (rotary) storm that derives its energy from cloud formation and rainfall, unlike frontal cyclones that derive their power from a temperature gradient. Full Article

Saffir-Simpson Scale

Category 1 – 74-95 mph (64-82 knots; 119-153 km/hr). Damage is limited to foliage, signage, unanchored boats and mobile homes. There is no significant damage to buildings. The main threat to life and property may be flooding from heavy rains.

Category 2 – 96-110 mph (83-95 knots; 154-177 km/hr). Roof damage to buildings. Doors and windows damaged. Mobile homes severely damaged. Piers damaged by storm surge. Some trees blown down, more extensive limb damage. Full Article

Tropical Cyclone Formation

Tropical Cyclone Genesis is the technical term for the process of storm formation that leads ultimately to what are called hurricanes, typhoons, or tropical cyclones in various parts of the world.

This occurs when, in the Northern Hemisphere, the Intertropical Convergence Zone, or ITCZ, shifts northward out of the doldrums and atmospheric conditions become favorable for tropical cyclone formation after about the middle of May. Full Article

Global Tropics Hazards and Benefits Outlook
Graphic provided by Climate Prediction Center
Tropical Storm FERNANDA Forecast Graphic
Tropical Storm FERNANDA Forecast Track (Joint Typhoon Warning Center)
Tropical Storm FERNANDA Storm-Centered Infrared
Tropical Storm FERNANDA Storm-Centered Enhanced Infrared
Tropical Storm FERNANDA Storm-Centered Visible
Tropical Storm FERNANDA Warning Text (JTWC)
Tropical Storm FERNANDA JMV 3.0 Data (JTWC)
SpaghettiTropical Storm FERNANDA Spaghetti Models (UWM)

Satellite Imagery

Satellite Animations

NHC Forecast Track (Tropical Storm GREG)
Tropical Storm GREG Forecast Track (National Hurricane Center)
Tropical Storm GREG Storm-Centered Infrared
Tropical Storm GREG Storm-Centered Enhanced Infrared
Tropical Storm GREG Storm-Centered Visible

Summary for Tropical Storm Greg (EP2/EP072017)

...STATUS QUO WITH GREG AS IT CONTINUES WESTWARD WITH 50-MPH WINDS... As of 8:00 PM PDT Thu Jul 20 the center of Greg was located near 14.3, -117.4 with movement W at 10 mph. The minimum central pressure was 1003 mb with maximum sustained winds of about 50 mph.

Tropical Storm Greg Public Advisory Number 15

...STATUS QUO WITH GREG AS IT CONTINUES WESTWARD WITH 50-MPH WINDS...
Location: 14.3°N 117.4°W
Max sustained: 50 mph
Moving: W at 10 mph
Min pressure: 1003 mb

Issued at 800 PM PDT Thu Jul 20 2017

Tropical Storm Greg Forecast Advisory Number 15

Issued at 0300 UTC FRI JUL 21 2017

Tropical Storm Greg Forecast Discussion Number 15

Issued at 800 PM PDT Thu Jul 20 2017

Tropical Storm Greg Wind Speed Probabilities Number 15

Issued at 0300 UTC FRI JUL 21 2017

Tropical Storm Greg Graphics

Tropical Storm Greg 5-Day Uncertainty Track Image
5-Day Uncertainty Track last updated Fri, 21 Jul 2017 02:41:33 GMT

Tropical Storm Greg 34-Knot Wind Speed Probabilities
Wind Speed Probabilities last updated Fri, 21 Jul 2017 03:21:35 GMT

Tropical Storm Greg 5-Day Track, Uncertainty Cone, Warnings (.shp)

GIS Data last updated Fri, 21 Jul 2017 02:41:57 GMT

Tropical Storm Greg Best Track Information (.shp)

GIS Data last updated Fri, 21 Jul 2017 02:41:57 GMT

Tropical Storm Greg Best Track Information (.kmz)

GIS Data last updated Fri, 21 Jul 2017 02:41:57 GMT

Tropical Storm Greg Forecast Information (.shp)

GIS Data last updated Fri, 21 Jul 2017 02:41:57 GMT

Tropical Storm Greg Information by ATCF XML Prototype

Issued at Fri, 21 Jul 2017 02:35:27 GMT. This is only a prototype and the file format may change without notice.

SpaghettiTropical Storm GREG Spaghetti Models (UWM)

Satellite Imagery

Satellite Animations

NHC Forecast Track (Tropical Depression 08E)
Tropical Depression 08E Forecast Track (National Hurricane Center)
Tropical Depression 08E Storm-Centered Infrared
Tropical Depression 08E Storm-Centered Infrared (Aviation Color Enhancement)
Tropical Depression 08E Storm-Centered Visible

No current storm in NHC Eastern North Pacific Wallet 3

No current storm in NHC EP3 as of Fri, 21 Jul 2017 04:36:55 GMT

Post-Tropical Cyclone EIGHT-E Graphics

Post-Tropical Cyclone EIGHT-E 5-Day Uncertainty Track Image
5-Day Uncertainty Track last updated Thu, 20 Jul 2017 20:39:11 GMT

Post-Tropical Cyclone EIGHT-E 34-Knot Wind Speed Probabilities
Wind Speed Probabilities last updated Thu, 20 Jul 2017 21:40:10 GMT

Post-Tropical Cyclone EIGHT-E 5-Day Track, Uncertainty Cone, Warnings (.shp)

GIS Data last updated Thu, 20 Jul 2017 20:40:01 GMT

Post-Tropical Cyclone EIGHT-E Best Track Information (.shp)

GIS Data last updated Thu, 20 Jul 2017 20:40:01 GMT

Post-Tropical Cyclone EIGHT-E Best Track Information (.kmz)

GIS Data last updated Thu, 20 Jul 2017 20:40:01 GMT

Post-Tropical Cyclone EIGHT-E Forecast Information (.shp)

GIS Data last updated Thu, 20 Jul 2017 20:40:01 GMT

SpaghettiTropical Depression 08E Spaghetti Models (UWM)

Satellite Imagery

Satellite Animations

Tropical Depression 07W Forecast Graphic
Tropical Depression 07W Forecast Track (Joint Typhoon Warning Center)
Tropical Depression 07W Storm-Centered Infrared
Tropical Depression 07W Storm-Centered Enhanced Infrared
Tropical Depression 07W Storm-Centered Visible
Tropical Depression 07W Warning Text (JTWC)
Tropical Depression 07W Prognostic Reasoning (JTWC)
Tropical Depression 07W JMV 3.0 Data (JTWC)

Satellite Imagery

Satellite Animations