ISAIAS IN GULF MAY BECOME A MAJOR HURRICANE (ees-ah-EE-ahs)
Posted: 01:52 AM 06 October 2026 | 1 Comment | Add Comment | Newest: 04:52 PM 06-Oct EDT
Isaias has broken the 2026 Atlantic hurricane drought tonight and is now the first tropical cyclone in the basin to receive the title.
NEW WARNINGS
*HURRICANE WARNING from Ocean Springs, MS. to Bay/Gulf Co line in Florida
*STORM SURGE WARNING from the mouth of the Mississippi River to the Steinhatchee River, Florida
*TROPICAL STORM WARNING from Jefferson/Plaquemines Parish line, LA to west of Ocean Springs, MS
*TROPICAL STORM WARNING from east of Bay/Gulf Co line to Aucilla River, FL
*TROPICAL STORM WARNING for the remainder of the old Hurricane Watch zone
Ciel
5:15PM EDT 7 October, 2026 Update

Isaias is now knocking on the door of becoming the first real-time hurricane of 2026. Hurricane and Tropical Storm Watches are expanding and Warnings will be coming very soon. The official NHC forecast now calls for Isaias to peak out just below Cat 3 prior to a weakening trend heading into landfall, but not a weakening trend that would happen quickly enough to stave off serious, life-threatening impacts.

Ciel
3:00AM EDT 7 October, 2026 Update
NINE (from 92L) has become Tropical Storm Isaias. Hurricane Watches and Warnings are likely very soon. Storm Surge Watches and Warnings likely very soon.
Ciel
1:00AM EDT 7 October, 2026 Update
Models have ingested the first recon (upper air survey) mission's data and the 0z runs coming out are not providing any relief to hopes that those higher upper-bound intensity limits of future-Isaias were misguided. On the contrary, they confirmed them. Interests along the Gulf Coast from Louisiana to the Big Bend of Florida should begin paying very close attention to this fast developing situation. Hurricane Watches and Warnings could be coming soon and some right along the central to eastern Gulf may even be needing to consider evacuations if track and intensity guidance continues this trend.
Many more recon flights are scheduled for today. These missions will help NHC pinpoint the specific locations along the coast most at risk heading into the weekend. In addition to the apparent increasing likelihood of sustained hurricane-force winds and substantial storm surge right along potions of the coast, owing to both the expected intensity and forward speed of this cyclone, locations well-inland may be facing a serious wind event. Coupled with heavy rain, scattered to widespread downed limbs, trees and even power lines are almost a given, if the current forecasts verify. Modeling also suggests that this system may spawn an unusually high number of waterspouts and/or tornadoes.
Ciel
4:30PM CDT 6 October, 2026 Update
Invest 92L has become Tropical Depression NINE in the Bay of Campeche (SW Gulf). NHC has issued the very first Advisory calling for intensity to reach Cat 2 on the Saffir-Simpson Scale, which would make then-Isaias the very first hurricane in the Atlantic basin this year. Interests along the north-central to northeastern Gulf Coast and points inland should begin paying close attention as Watches and/or Warnings could be going up at any time.
Ciel
Original Update

Above: NHC Oct 6, 2026 2AM EDT Tropical Weather Update on 92L
The Area of Interest we have been discussing for several days in the Forecast Lounge, now Invest 92L, has very robust, near unanimous model support for development, despite the presence of the strongest El Niño in recorded history. In reality, the next 48 to at most 72 hours is possibly crunch time for this system as if it doesn't get its act together by then, it may not have another window like this (just look at all the other Atlantic storms during the 2026 El Niño for reference).
92L is not yet a very well formed disturbance at all, and recon has not yet flown in. However, both could quickly change and in fact recon should be investigating 92L as soon as later today. Models strongly suggest that by then 92L should already have taken on more of a classic incipient tropical cyclone look, if not even be one. But, as NHC notes in the TWO above, at the moment it is still "too early to determine specific impacts to the northern Gulf Coast, but interests there should closely monitor the progress of this system." In non-NHC speak, Watches and Warnings could be going up along the northern Gulf Coast soon, just not as of 2AM EDT today.
Model deep-dives and analysis in the Isaias Forecast Lounge
Isaias Event Related Links
Tropical Tidbits Page on system
Flhurricane Satellite Floater Animation of Isaias
GOES Floater
Tomer Berg Info page for Isaias
CyclonicWx Page for Isaias
Clark Evans Track Model Plot of Isaias
(Animated!) Model Plots in Google Earth - In Google Maps
Clark Evans Intensity Model Plot of Isaias (Animated!)
Clark Evans Track Plot of Isaias
Clark Evans Top 10 Analog Storms for Isaias
http://www.ral.ucar.edu/guidance/realtime/current/ More model runs on from RAL/Jonathan Vigh's page
NRL Info on Isaias -- RAMMB Info
COD Atlantic Satellite View
Ed Dunham
Hurricane Matthew Weather Summary for East Central Florida
Posted: 05:32 PM 16 October 2016
A low pressure reading of 28.97" was recorded at Melbourne NWS at 7AM. At 7:30AM I noted a pressure reading of 28.98" at my home in northwest Melbourne. The lowest pressure was located in the southern section of the eye of the hurricane and the central pressure from the Hurricane Hunters was recorded at 938MB (27.90") at 1AM. At 4AM the aircraft reported a circular eye with a diameter of 32NM and a central pressure of 942MB with flight level wind at 118 knots which translates to a 100 knot surface wind (115mph). At 7:17AM the aircraft sent a position fix for the eye at 28.6N 80.2W with a pressure of 942MB and eyewall sustained surface winds of 110 knots. The eye of Matthew had contracted to a circular 20NM diameter as the hurricane passed to the east of the area. Although the radius of the eye had contracted from 17NM to 10NM, the radius of sustained hurricane force winds remained at 40 miles to the west of the center. The central pressure increased and leveled off at 947MB during the day on Friday as Matthew moved NNW. If the eye of Matthew had moved along the shoreline, i.e., if it had been 35-40 miles further to the west, damage would have certainly been greater but no realistic conclusion can be made with regard to the extent of the destruction because an on-shore system would have slowly weakened.
Matthew goes into the record books as a Category I Hurricane in a small section of the Brevard County coast. In some reports from the NHC the flight level Recon wind speeds were not reduced correctly and resulted in stated maximum eyewall surface wind speeds that were about 10mph too high - and I cannot find a valid meteorological reason for doing this. Hurricane Erin in 1995 and Hurricanes Frances and Jeanne in 2004 were all storms with a greater impact on Brevard County. While the early call by the Brevard Emergency Management Operations Center to evacuate residents from the Barrier Islands was prudent, the overstated intensity and inland impacts were mis-leading and confusing to some of our residents. The National Hurricane Center and The Weather Channel both over-hyped the overall magnitude of the storm - which will not help folks to make the correct decision when the next hurricane visits our area. Matthew was not the catastrophic Category IV storm of the century that was touted by some for our area. All hurricanes are dangerous and deserve proper preparation and decision-making. It is worth noting that the area from Melbourne Beach to Titusville has never recorded a Cat III or greater hurricane. Someday that record of 165 years will probably be broken, but Matthew was not that storm. Hurricane David, September 3-4, 1979, was the last Category II Hurricane to hit this area with eye passage along the coast from West Palm Beach to New Smyrna Beach.
ED
Selected Weather Reports:
Vero Beach - wind W 49G74mph Rainfall 3.16"
Sebastian - wind N 30G59mph
5N Barefoot Bay - wind N G74mph
4NNW Grant - wind NW 51G68mph
Malabar - wind N 60G72mph
Melbourne Beach - wind N 23G63mph Lowest SLP: 28.85"
Melbourne (Dairy Road) - wind N 44G71mph
Melbourne - wind N 44G76mph Lowest SLP: 28.97"
NW Melbourne - wind NNW 42G65 Lowest SLP: 28.98 Storm Total Rainfall: 3.43"
Satellite Beach - wind N 69G87mph
2SSE Patrick AFB - wind N 69G88mph
South Patrick Shores - wind N 73G90mph Lowest SLP: 28.86"
Cocoa Beach Park - wind N 60G77mph
Merritt Island (Sunset Lakes) - wind NW 36G55mph Lowest SLP: 28.90"
Merritt Island (Banana River) - wind NNW 63G81mph
3WNW Cape Canaveral - wind gust N 86mph
4NE Cape Canaveral - wind gust NNW 81mph Coastal Flooding
5NE Port Canaveral - wind gust N 100mph
KSC Tower 22 - wind gust NW 107mph (non-standard anemometer height)
KSC Tower 3 - NNW 77G107mph (non-standard anemometer height)
Titusville (Parrish Park) - wind N 58G75mph
5NNE New Smyrna Beach - wind gust N 80mph
Daytona Beach (Speedway) - wind gust NNW 91mph
5NE Lake Mary - 24 hour rainfall 7.04"
Orlando Intl Airport - wind W 30G61mph Lowest SLP: 29.30"
From the Melbourne NWS:
G. STORM IMPACTS BY COUNTY...
---------------------------------------------------------------------
COUNTY DEATHS INJURIES EVACUATIONS
DESCRIPTION
---------------------------------------------------------------------
BREVARD 0 1 UNKNOWN
ONE DIRECT INJURY. A MALE IN HIS 40S WAS INJURED IN PORT CANAVERAL
WHEN A SIGN FELL AND STRUCK HIM DURING THE STORM. DAMAGE TO
BUSINESSES AND HOMES MAINLY AS A RESULT OF FALLEN TREES. SEVERAL
HOMES WITH WATER INTRUSION DUE TO DAMAGED ROOFS. TWO HOMES LOST TO
FIRE AS OFFICIALS SUSPENDED EMERGENCY SERVICES DURING THE HEIGHT OF
THE STORM. SPORADIC COUNTYWIDE DAMAGE TO FENCES...AWNINGS...AND
SCREEN ROOMS. AN INITIAL COASTAL SURVEY INDICATES MODERATE TO MAJOR
BEACH EROSION WITH SIGNIFICANT DAMAGE TO BERMS AND DUNES.
PRELIMINARY DAMAGE ASSESSMENT INDICATES AN ECONOMIC LOSS OF $25
MILLION DUE TO COASTAL EROSION, AND $4 MILLION DUE TO VEGETATIVE
LOSSES. PROPERTY DAMAGE ASSESSMENT HAS NOT BEEN COMPLETED. ABOUT
300,000 CUSTOMERS WERE WITHOUT POWER AT THE HEIGHT OF THE STORM.
INDIAN RIVER 0 0 UNKNOWN
NO DEATHS OR INJURIES. ROUGH SURF AND MAJOR BEACH EROSION.
PRELIMINARY BEACH DAMAGE ASSESSMENT DETAILS MAJOR DUNE EROSION AND
SIGNIFICANT DAMAGE TO PEDESTRIAN CROSSWALKS WITHIN COUNTY OWNED
BEACH PARKS WITH AN ESTIMATED ECONOMIC LOSS OF $13 MILLION. SEVERAL
HOMES DAMAGED MAINLY BY FALLEN TREES.
LAKE 0 0 UNKNOWN
NO DEATHS OR INJURIES. MINOR URBAN...ROADWAY...AND LOWLAND FLOODING.
THE ST. JOHNS RIVER NEAR ASTOR PEAKED JUST BELOW MODERATE FLOOD
STAGE. MINOR DAMAGE TO FOUR HOMES WITH MAJOR DAMAGE TO THREE CAUSED
MAINLY BY FALLING BRANCHES AND TREES. EARLY PROPERTY DAMAGE
ASSESSMENT OF APPROXIMATELY $389 THOUSAND.
MARTIN 0 1 UNKNOWN
ONE INDIRECT INJURY. A 47-YEAR-OLD MALE WAS ELECTROCUTED WHEN HIS
TOOLS HIT A LIVE POWER LINE WHILE TRIMMING TREES IN STUART AFTER
THE STORM ON MONDAY OCTOBER 10 AROUND 8:15 AM. ROUGH SURF AND MINOR
BEACH EROSION. MINOR DAMAGE TO HOMES MAINLY AS A RESULT OF FALLEN
TREES. ISOLATED DAMAGE TO FENCES...AWNINGS...AND SCREEN ROOMS.
PROPERTY DAMAGE ASSESSMENT NOT YET AVAILABLE.
OKEECHOBEE 0 0 UNKNOWN
NO DEATHS OR INJURIES. MINOR ROOF DAMAGE TO ONE HOME. UP TO 2300
CUSTOMERS WITHOUT POWER AT HEIGHT OF STORM.
ORANGE 1 0 UNKNOWN
ONE DEATH INDIRECTLY RELATED TO HURRICANE MATTHEW. A 70-YEAR-OLD
WOMAN DIED AFTER HER MEDICAL DEVICE FAILED DURING A POWER OUTAGE.
PROPERTY DAMAGE ASSESSMENT NOT YET AVAILABLE FROM OFFICIALS.
OSCEOLA 0 0 UNKNOWN
NO DEATHS OR INJURIES. NO REPORTS OF STRUCTURAL DAMAGE OR FLOODING.
MINOR DAMAGE MAINLY TO TREES AND VEGETATION. UP TO 5900 CUSTOMERS
WERE WITHOUT POWER AT THE HEIGHT OF THE STORM.
SEMINOLE 0 0 UNKNOWN
NO DEATHS OR INJURIES. MINOR URBAN...ROADWAY...LOWLAND AND RIVER
FLOODING. DAMAGE TO BUSINESSES AND RESIDENCES MAINLY BY FALLING
BRANCHES AND TREES. INITIAL PROPERTY DAMAGE ESTIMATED $15 MILLION.
UP TO 70,000 CUSTOMERS WITHOUT POWER AT THE HEIGHT OF THE STORM.
ST. LUCIE 2 2 UNKNOWN
TWO INDIRECT DEATHS AND TWO INDIRECT INJURIES. A 58-YEAR-OLD INDIAN
RIVER ESTATES WOMAN DIED OF A HEART ATTACK AND A PORT ST. LUCIE MAN
IN HIS 80S DIED AFTER SUFFERING BREATHING PROBLEMS AND SYMPTOMS OF A
STROKE AS FIRE OFFICIALS SUSPENDED EMERGENCY SERVICES DURING THE
HURRICANE. A 90-YEAR-OLD MALE AND FEMALE WERE FOUND UNCONSCIOUS IN
THEIR PORT ST. LUCIE HOME AFTER OFFICIALS DISCOVERED THEY WERE
RUNNING A GAS GENERATOR IN THEIR GARAGE. ROUGH SURF AND MODERATE TO
MAJOR BEACH EROSION. DAMAGE CONFINED MAINLY TO TREES...POWER
LINES...AND SIGNAGE THROUGH THE COUNTY. PROPERTY DAMAGE ASSESSMENT
NOT YET AVAIALBLE FROM OFFICIALS.
VOLUSIA 4 0 UNKNOWN
ONE DIRECT AND THREE INDIRECT FATALITIES. A 63-YEAR-OLD WOMAN DIED
WHEN A TREE FELL ON HER AS SHE WAS OUT FEEDING ANIMALS AT HER DELAND
HOME. A 89-YEAR-OLD MAN FROM DELEON SPRINGS WAS ELECTROCUTED BY A
DOWNED POWER LINE MONDAY MORNING AROUND 8:00 AM OCTOBER 10. A 47-
YEAR-OLD NORTHEAST OHIO MAN ASSISTING CLEANUP EFFORTS IN ORMOND
BEACH WAS KILLED WHEN PART OF A DOWNED TREE ROLLED ON TOP OF HIM AND
PINNED HIM UNDERNEATH. A 9-YEAR-OLD DAYTONA BEACH BOY WAS FOUND
UNCONSCIOUS IN HIS HOME AFTER OFFICIALS DISCOVERED A GENERATOR
RUNNING IN ANOTHER ROOM. THE BOY LATER DIED AT HALIFAX HEATLH
MEDICAL CENTER. SIGNIFICANT DAMAGE TO HOMES AND BUSINESS THROUGHOUT
THE COUNTY WITH OVER 6400 PROPERTIES AFFECTED, 1100 WITH MINOR
DAMAGE, 300 WITH MAJOR DAMAGE, AND 40 STRUCTURES DESTROYED. INITIAL
PROPERTY DAMAGE ESTIMATE OF $490 MILLION. ROUGH SURF AND MAJOR BEACH
EROSION. BEACH EROSION DAMAGE ASSESSMENTS NOT AVAILABLE AT THIS TIME.
As of the end of February an El Nino is in place and it is expected to increase in strength with at least a moderate El Nino quite likely for the entire Atlantic hurricane season. Some of the forecast models including the ECMWF suggest that a strong El Nino event will occur. Since the end of November, 2014, SSTs in almost all of the Atlantic tropical basin have declined considerably with anomalies greater than -1.5C in some areas in the eastern Atlantic and the western Caribbean Sea. This significant shift downward in tropical Atlantic SSTs will produce another year of decreased activity in the basin and it also reduces the likelihood of any early season storms. The CSU forecast numbers are 7 tropical storms, with 3 of them becoming hurricanes with one hurricane becoming a major storm. This is one of the lowest CSU tropical cyclone forecasts that I have ever seen them issue. They also expected an ACE of 40 and a seasonal activity level at 45% of normal.
CSU lists 1991 as one of their analog years, however, with such a rapid decline in the overall Atlantic tropical SSTs, I believe that 1969 and 1991 are no longer valid analogs. My new analog years are:
1. 1977 - Atlantic activity was 6/5/1 ....... EASTPAC activity was 8/4/0
2. 1959 - Atlantic activity was 10/6/2 ...... EASTPAC activity was 15/5/3
3. 1953 - Atlantic activity was 13/6/4 ...... EASTPAC activity was 4/2/0
The updated averages for these analog years is 10/6/2 - which is close to my current forecast of 9/6/2. (updated on 4/15 to 8/5/1)
TSR also issued its updated forecast for the Atlantic basin and lowered their forecast totals to 11/5/2 with the following comments: "The TSR forecast has been reduced, since early December 2014, due to updated climate signals indicating that the tropical North Atlantic and Caribbean Sea in August-September 2015 will likely be cooler than normal and cooler than thought previously. Should the TSR forecast for 2015 verify it would mean that the ACE index total for 2013-2015 was easily the lowest 3-year total since 1992-1994 and it would imply that the active phase of Atlantic hurricane activity which began in 1995 has likely ended. However, it should be stressed that the precision of hurricane outlooks issued in April is low and that large uncertainties remain for the 2015 hurricane season."
As the season gets underway, keep an eye on the level of activity in the EASTPAC. If it starts to look like the Eastern Pacific is going to have a busy year, then 1953 can be discarded as an analog year for the Atlantic - which means that the upcoming Atlantic hurricane season could be mighty quiet - especially if the tropical Atlantic SST cooling trend continues into the Summer.
Remember that you can post your own forecast of seasonal numbers in the Storm Forum until the season starts on June 1st.
ED
In the 45 seasons from 1950-2014 there were 17 seasons that only had three named storms by August 31st, so its not an unusual event, but it is unusual that the last one was 20 years ago. At the other end of the activity spectrum, in 1995, 2005, 2011 and 2012 there were 12 named storms by August 31st. Here are the previous 16 seasons since 1950 with three or less named storms prior to September 1st along with activity totals for those years, totals for the following year, and hurricane landfall statistics for the 16 seasons:
Year - # by 8/31 - total activity - following year - U.S. landfalls - FL landfalls
1952 2 6/6/3 13/6/4 1 0
1956 3 8/4/2 7/3/2 1 1
1957 2 7/3/2 10/7/5 1 0
1961 1 11/8/7 5/3/1 2 0
1962 2 5/3/1 9/7/2 0 0
1963 2 9/7/2 12/6/6 1 0
1965 3 6/4/1 11/7/3 1 0
1967 1 8/6/1 8/4/0 1 0
1977 1 6/5/1 12/5/2 1 0
1980 3 11/9/2 12/7/3 1 0
1982 3 6/2/1 4/3/1 0 0
1983 2 4/3/1 13/5/1 1 0
1987 3 7/3/1 11/5/3 1 1
1991 2 8/4/2 7/4/1 1 0
1992 2 7/4/1 7/3/1 1 1
1994 3 7/3/0 19/11/5* 0 0
Average 2 7/5/2 9/5/2 1 0
(*1995 was not included in the 'following year' average since 1995 was the start of the active cycle.)
Note that although these were all slow starting years (and mostly quiet years), every season except 1994 had at least one major hurricane. Although these were mostly quiet years, only three of them did not have a U.S. landfalling hurricane, while in Florida only three seasons had a landfalling hurricane. In the following year, one season had normal activity while seven seasons were above normal and seven seasons had below normal named storm activity, i.e., no correlation to the previous year. On average, based on the 16 seasons that started with three named storms (or less) by August 31st, this season would be expected to have four more named storms - with a minimum of one more and a maximum of eight more.
Since the lack of activity cannot be blamed on an El Nino event (it has not yet started), it is increasingly likely that the period of Atlantic high tropical cyclone activity has ended. However, it is important to remember that the likelihood of a U.S. hurricane landfall is about the same (approximately 22%) during a 'quiet cycle' era as it is during an 'active cycle' era - and that is also true for a Florida hurricane landfall (about 5%).
ED
An upper level low located near 39N 58W at 03/21Z continues to retrograde westward. High pressure is centered south of the Great Lakes behind a cool front moving eastward through the Appalachian Range. Hurricane Arthur continues to maintain more of a north northeast movement and I would anticipate a track adjustment on a course a little more to the west with Arthur moving over eastern North Carolina just to the west of the Outer Banks as a Cat II Hurricane Thursday night into the early hours of Friday morning. As the front approaches the east coast, Arthur will be nudged into more of a northeast movement with the center passing just to the southeast of Cape Cod around midnight Friday night as a minimal Cat I hurricane undergoing extratropical transition.
Hurricane conditions likely over eastern North Carolina within 25 miles of the center track in the southwest and northwest quadrants and within 75 miles of the track in the northeast and southeast quadrants. Any hurricane preparations by those who are in or near the path of the hurricane should have already been completed. A fully transitioned strong Extratropical storm should pass over Nova Scotia on Saturday and over Newfoundland on Sunday.
ED
Have any canned or powdered foods exceeded their storage or use date?
If you have a generator, have you checked it out recently to see if it is still in good operating order? If you stored gasoline for that generator last year, its time to use it in a vehicle or other equipment and refill the gas containers with a supply of fresh gasoline.
If you put aside some medications/insulin etc., in a First Aid kit for use in an emergency when you might not be able to get to your doctor for a few days, are they still useable?
Do you still have a small analog battery-operated TV in your hurricane supply kit? If so, it will no longer work and you will need a digital TV replacement. There are some good ones on the market that will usually pick up a few stations with their built-in antenna.
If a hurricane reduces the IQ of your Smart Phone, do you have an alternate plan for getting in touch with co-workers, friends and relatives? A portable radio is valuable for getting storm updates, evacuation status changes and school and business closings/openings.
Don't forget to include the needs of your pets in your hurricane planning - especially if you need to evacuate when a storm threatens.
I have this uneasy feeling that this year someone in Florida is going to be thankful that they took the time to prepare for the storm.
ED
General Hurricane Links
A curated collection of official sources, observations, models, and tropical weather commentary. For urgent weather information, always check official government sources first.
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- National Hurricane Center (NHC)
- Inside the Eye — Official NHC Blog
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Satellite / Observations
- RAMMB Interactive Satellite Imagery
- Zoom Earth (storm tracks and satellite animation)
- CIMSS MIMIC-TC (microwave imagery)
- NRL Monterey (tracking maps and satellite)
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Data / Tracking / SST
- TC ATLAS (Tropical Cyclone Analysis Tool for Live and Archived Structure)
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Forecast Models
Commentary / Tools
- Tropical Tidbits (Levi Cowan)
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- TropicalAtlantic
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- Mike’s WX Page
- Greg Nordstrom
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- American Weather
- Crown Weather (Robert Lightbown)
- The Eyewall
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