10/9/26 @ 10AM – This morning, Hurricane Isaias intensified into a major Category 3 Hurricane with sustained winds of 120 mph. Isaias should make landfall near Pensacola late tonight or early tomorrow morning, according to the National Hurricane Center.
Increasing forward motion should bring strong winds far inland over the southeast U.S. into the Tennessee and Ohio River Valleys, causing widespread power outages.
The National Hurricane Center (NHC) expects tropical-storm-force winds to arrive on the Florida panhandle by 2PM today.
Arrival Time
Tropical-storm-force winds now extend outward 185 miles from the center and hurricane force winds 30 miles.
Damaging wind gusts are possible over much of central and northern Alabama, extreme eastern Mississippi, and portions of western and northern Georgia, especially in areas of higher terrain.
Rainfall and Flooding Potential
Isaias will bring areas of heavy rainfall to the central U.S. Gulf coast and much of the Southeast through the weekend.
Considerable flash and urban flooding, along with significant river flooding, will be possible.
Storm Surge Up to 9 Feet
NHC predicts damaging storm surge up to 9 feet in the western Florida Panhandle, with lesser amounts elsewhere.
Maximum values will occur near and to the east of where the center crosses the coast.
Infrared satellite images show an eye surrounded by intense thunderstorms.
Infrared satellite image as of 9:16 CDT this morning
Tropical Tidbits shows this animated IR Satellite Loop. However, an eye is not apparent on the Geo-Color view.
Near Peak, but Increasing Forward Speed and Wind-Field Width
The hurricane is passing over a warm deep water eddy and that is likely helping the intensification process in the face of increasing vertical shear. Isaias has turned toward the NNE and is increasing in forward speed.
Isaias is likely near peak. However, it is possible that the hurricane could intensify a bit more this morning before strong shear begins to impact the system.
The wind field will greatly expand later today into tonight as Isaias makes landfall and moves inland while interacting with an upper level trough to the west.
Origin of Name
Isaias is pronounced “ees-ah-EE-ahs” – four syllables – with the emphasis on the third. That is NHC’s official pronunciation.
According to ChatGPT, Isaías is the Spanish and Portuguese form of Isaiah, the biblical prophet’s name. It comes from Hebrew Yesha‘yahu, meaning “Yahweh is salvation,” or “salvation of the Lord.”
Why use a name that English speakers may find difficult? NHC follows name lists maintained by the World Meteorological Organization’s (WMO) Hurricane Committee. Atlantic lists deliberately balance English, French and Spanish names because storms affect countries speaking all three languages. The lists rotate every six years. Isaias replaced Ike after the destructive 2008 hurricane caused Ike’s name to be retired. NOAA
WMO itself says storm names should be instantly recognizable for safety. The multilingual approach explains the choice, although it clearly creates a pronunciation hurdle for many English speakers.
Posted by Bob Rehak on 10/9/26 based on information from NHC and Harris County Meteorologist Jeff Lindner
3328 Days since Hurricane Harvey
https://i0.wp.com/reduceflooding.com/wp-content/uploads/2026/10/Isaias-10.9.26.jpg?fit=1000%2C1000&ssl=110001000adminadmin2026-10-09 09:59:552026-10-09 09:59:56Isaias Now a Major Hurricane
9/8/26 – At 4 am CDT today, the National Hurricane Center (NHC) issued an advisory stating that Tropical Storm Isaias had intensified into a hurricane overnight. NHC expects winds to increase to near major hurricane status in the next 24 hours and says the storm will produce life-threatening surge up to 7-feet high across the northern Gulf Coast from the mouth of the Mississippi to the Florida panhandle.
Isaias is now moving toward the east-northeast near 9 mph and should turn toward the northeast later today followed by a turn northward on Friday. NHC expects landfall along the U.S. northern Gulf Coast late Friday or early Saturday.
A dropsonde launched from an Air Force Reserve hurricane hunter found average winds of 76 kt – the basis for upgrading Isaias to a hurricane at 0330 UTC.
Environmental Factors Affecting Forecast
Since that time, Isaias has continued to intensify, but with some northward tilt with height, likely due to moderate westerly vertical wind shear that continues to hinder circulation. However, circulation has increased since yesterday.
Aircraft fixes indicate that Isaias continues to maintain an east-northeastward heading. The most critical steering features:
A subtropical ridge centered east of the Bahamas
A mid-level trough along the northern Gulf coast
Low pressure digging in from the Rocky Mountains.
The net effect:
Isaias should make a left turn to the northeast and the north over the next 24-48 hours.
NHC
The forecast has not changed appreciably though models continue to disagree over the exact track (east or west) after the turn to the north. The storm should become post-tropical over the Tennessee Valley.
The intensity forecast remains difficult. Isaias is fighting around 20 kt of westerly vertical wind shear, and an eyewall keeps coming and going.
Infrared image of circulation at 5 AM CDT
Other favorable environmental factors for further intensification include 30 C sea-surface temperatures and abundant moisture. Shear should not increase appreciably for the next 24 hours. In fact, the hurricane has intensified despite shear. So NHC expects significant intensification in the short-term. making Isaias just shy of major hurricane intensity in 24 hours.
However, in the final 12-24 hours before Isaias makes landfall on the north Gulf coast, vertical wind shear should ramp up to 40-50 kt. This will likely impart some weakening. At the same time, the hurricane’s wind field may become broader.
Regardless, NHC expects Isaias to remain a dangerous hurricane through landfall with gusty winds extended well inland.
Key Messages from NHC
Key Messages:
1. Isaias should strengthen and become a strong hurricane when it approaches the northern Gulf Coast on Friday. A life-threatening storm surge is expected along a portion of the northern Gulf Coast,and a Storm Surge Warning remains in effect from the Mouth of the Mississippi River to Steinhatchee, Florida. Residents in the warning area should follow advice given by local officials and evacuate if told to do so.
2. Damaging hurricane force-winds will extend across the Florida Panhandle, southern Alabama, and southern Mississippi. A Hurricane Warning remains in effect from Ocean Springs, Mississippi to the Bay/Gulf County Line, Florida. Residents there should prepare for extended power outages.
3. Isaias will bring areas of heavy rainfall to the central U.S. Gulf coast and much of the Southeast Friday into the weekend. Flash and urban flooding, along with isolated river flooding, will be possible.
NHC Graphics Illustrate Risks
The graphics below show current predicted risks.
Isaias track forecastRainfall forecastIsaias flash-flood risk Isaias wind field
Isaias is the latest “first hurricane of the Atlantic season” on record.
Posted by Bob Rehak on 9/8/2026 based on NHC information
3327 Days since Hurricane Harvey
https://i0.wp.com/reduceflooding.com/wp-content/uploads/2026/10/Isaias-9.8.26-5am.jpg?fit=1000%2C1000&ssl=110001000adminadmin2026-10-08 05:57:092026-10-08 05:57:10Isaias Now a Hurricane
10/6/2026 – At 1 pm, the National Hurricane Center (NHC) gave a 100% chance of tropical formation in the Bay of Campeche near the Yucatan Peninsula, up from 90% earlier this morning.
Some weather models suggest it could become as strong as a Category 4, though most suggest a lower intensity level. Three models put it into the “major storm” category.
High pressure in Texas will likely protect the Houston region and push the storm toward Louisiana and the Florida Panhandle. You can see the effect of the high pressure below.
Satellite image from NHC as of 9:51 Houston time on 10/6/26
This animated loop on Tropical Tidbits shows the storm growing and the beginnings of an eye, which is also visible on the water vapor image below.
Water vapor image from 9:46am Houston time on 9/6/26
Timing and Impacts
We should see strengthening later this week.
Regardless of intensity, heavy rains and flooding could occur over portions of the northern Gulf coast and southeastern U.S. later this week and into the weekend.
According to Jeff Lindner, Harris County’s meteorologist, Invest 92L looks better organized this morning, but it’s difficult to tell whether a center of circulation has formed yet. The system is drifting toward the east or southeast and this general motion should continue for the next day or so.
Lindner says lower pressure will develop over west Texas later this week allowing the storm to turn north and accelerate. The system should drift for the next 24 hours before starting a more consistent motion around 48 hours, and then a faster northward motion later this week.
“On this track, a hurricane will likely approach the central U.S. Gulf coast late this week or early this weekend.”
Jeff Lindner, Harris County Meteorologist
Persistent northeasterly flow along the coast will increase into late week. Forecasted tides will run 1-2 feet above normal by late week and minor coastal flooding will be possible at times of high tide from Thursday through Saturday. Depending on the intensity of 92L, higher swells could push tides a bit higher than currently forecast.
Isaias Now a Major Hurricane
10/9/26 @ 10AM – This morning, Hurricane Isaias intensified into a major Category 3 Hurricane with sustained winds of 120 mph. Isaias should make landfall near Pensacola late tonight or early tomorrow morning, according to the National Hurricane Center.
Increasing forward motion should bring strong winds far inland over the southeast U.S. into the Tennessee and Ohio River Valleys, causing widespread power outages.
The National Hurricane Center (NHC) expects tropical-storm-force winds to arrive on the Florida panhandle by 2PM today.
Arrival Time
Tropical-storm-force winds now extend outward 185 miles from the center and hurricane force winds 30 miles.
Damaging wind gusts are possible over much of central and northern Alabama, extreme eastern Mississippi, and portions of western and northern Georgia, especially in areas of higher terrain.
Rainfall and Flooding Potential
Isaias will bring areas of heavy rainfall to the central U.S. Gulf coast and much of the Southeast through the weekend.
Considerable flash and urban flooding, along with significant river flooding, will be possible.
Storm Surge Up to 9 Feet
NHC predicts damaging storm surge up to 9 feet in the western Florida Panhandle, with lesser amounts elsewhere.
Maximum values will occur near and to the east of where the center crosses the coast.
Infrared satellite images show an eye surrounded by intense thunderstorms.
Tropical Tidbits shows this animated IR Satellite Loop. However, an eye is not apparent on the Geo-Color view.
Near Peak, but Increasing Forward Speed and Wind-Field Width
The hurricane is passing over a warm deep water eddy and that is likely helping the intensification process in the face of increasing vertical shear. Isaias has turned toward the NNE and is increasing in forward speed.
Isaias is likely near peak. However, it is possible that the hurricane could intensify a bit more this morning before strong shear begins to impact the system.
The wind field will greatly expand later today into tonight as Isaias makes landfall and moves inland while interacting with an upper level trough to the west.
Origin of Name
Isaias is pronounced “ees-ah-EE-ahs” – four syllables – with the emphasis on the third. That is NHC’s official pronunciation.
According to ChatGPT, Isaías is the Spanish and Portuguese form of Isaiah, the biblical prophet’s name. It comes from Hebrew Yesha‘yahu, meaning “Yahweh is salvation,” or “salvation of the Lord.”
Why use a name that English speakers may find difficult? NHC follows name lists maintained by the World Meteorological Organization’s (WMO) Hurricane Committee. Atlantic lists deliberately balance English, French and Spanish names because storms affect countries speaking all three languages. The lists rotate every six years. Isaias replaced Ike after the destructive 2008 hurricane caused Ike’s name to be retired. NOAA
WMO itself says storm names should be instantly recognizable for safety. The multilingual approach explains the choice, although it clearly creates a pronunciation hurdle for many English speakers.
Posted by Bob Rehak on 10/9/26 based on information from NHC and Harris County Meteorologist Jeff Lindner
3328 Days since Hurricane Harvey
Isaias Now a Hurricane
9/8/26 – At 4 am CDT today, the National Hurricane Center (NHC) issued an advisory stating that Tropical Storm Isaias had intensified into a hurricane overnight. NHC expects winds to increase to near major hurricane status in the next 24 hours and says the storm will produce life-threatening surge up to 7-feet high across the northern Gulf Coast from the mouth of the Mississippi to the Florida panhandle.
Isaias is now moving toward the east-northeast near 9 mph and should turn toward the northeast later today followed by a turn northward on Friday. NHC expects landfall along the U.S. northern Gulf Coast late Friday or early Saturday.
A dropsonde launched from an Air Force Reserve hurricane hunter found average winds of 76 kt – the basis for upgrading Isaias to a hurricane at 0330 UTC.
Environmental Factors Affecting Forecast
Since that time, Isaias has continued to intensify, but with some northward tilt with height, likely due to moderate westerly vertical wind shear that continues to hinder circulation. However, circulation has increased since yesterday.
Aircraft fixes indicate that Isaias continues to maintain an east-northeastward heading. The most critical steering features:
The net effect:
The forecast has not changed appreciably though models continue to disagree over the exact track (east or west) after the turn to the north. The storm should become post-tropical over the Tennessee Valley.
The intensity forecast remains difficult. Isaias is fighting around 20 kt of westerly vertical wind shear, and an eyewall keeps coming and going.
Other favorable environmental factors for further intensification include 30 C sea-surface temperatures and abundant moisture. Shear should not increase appreciably for the next 24 hours. In fact, the hurricane has intensified despite shear. So NHC expects significant intensification in the short-term. making Isaias just shy of major hurricane intensity in 24 hours.
However, in the final 12-24 hours before Isaias makes landfall on the north Gulf coast, vertical wind shear should ramp up to 40-50 kt. This will likely impart some weakening. At the same time, the hurricane’s wind field may become broader.
Regardless, NHC expects Isaias to remain a dangerous hurricane through landfall with gusty winds extended well inland.
Key Messages from NHC
Key Messages:
1. Isaias should strengthen and become a strong hurricane when it approaches the northern Gulf Coast on Friday. A life-threatening storm surge is expected along a portion of the northern Gulf Coast,and a Storm Surge Warning remains in effect from the Mouth of the Mississippi River to Steinhatchee, Florida. Residents in the warning area should follow advice given by local officials and evacuate if told to do so.
2. Damaging hurricane force-winds will extend across the Florida Panhandle, southern Alabama, and southern Mississippi. A Hurricane Warning remains in effect from Ocean Springs, Mississippi to the Bay/Gulf County Line, Florida. Residents there should prepare for extended power outages.
3. Isaias will bring areas of heavy rainfall to the central U.S. Gulf coast and much of the Southeast Friday into the weekend. Flash and urban flooding, along with isolated river flooding, will be possible.
NHC Graphics Illustrate Risks
The graphics below show current predicted risks.
Isaias is the latest “first hurricane of the Atlantic season” on record.
Posted by Bob Rehak on 9/8/2026 based on NHC information
3327 Days since Hurricane Harvey
Hurricane Likely in Gulf
10/6/2026 – At 1 pm, the National Hurricane Center (NHC) gave a 100% chance of tropical formation in the Bay of Campeche near the Yucatan Peninsula, up from 90% earlier this morning.
Some weather models suggest it could become as strong as a Category 4, though most suggest a lower intensity level. Three models put it into the “major storm” category.
High pressure in Texas will likely protect the Houston region and push the storm toward Louisiana and the Florida Panhandle. You can see the effect of the high pressure below.
This animated loop on Tropical Tidbits shows the storm growing and the beginnings of an eye, which is also visible on the water vapor image below.
Timing and Impacts
We should see strengthening later this week.
Regardless of intensity, heavy rains and flooding could occur over portions of the northern Gulf coast and southeastern U.S. later this week and into the weekend.
According to Jeff Lindner, Harris County’s meteorologist, Invest 92L looks better organized this morning, but it’s difficult to tell whether a center of circulation has formed yet. The system is drifting toward the east or southeast and this general motion should continue for the next day or so.
Lindner says lower pressure will develop over west Texas later this week allowing the storm to turn north and accelerate. The system should drift for the next 24 hours before starting a more consistent motion around 48 hours, and then a faster northward motion later this week.
Persistent northeasterly flow along the coast will increase into late week. Forecasted tides will run 1-2 feet above normal by late week and minor coastal flooding will be possible at times of high tide from Thursday through Saturday. Depending on the intensity of 92L, higher swells could push tides a bit higher than currently forecast.
Monitor the National Weather Service and National Hurricane Center for frequent updates as the storm approaches land.
As we saw with Tropical Storm Edouard, minor changes in the track of a storm can make huge differences in impacts. At this stage, nothing is certain.
Posted by Bob Rehak on 10/6/2026
3325 Days since Hurricane Harvey