ISAIAS IN GULF MAY BECOME A MAJOR HURRICANE (ees-ah-EE-ahs)
Posted: 01:52 AM 06 October 2026 | 2 Comments | Add Comment | Newest: 11:33 AM 08-Oct EDT
Isaias is now a 100 MPH Cat 2 Hurricane. 91% of the high-quality Google DeepMind WNv3 ensembles take the cyclone to Major status, understandably, as a solid inner core has formed and the cyclone is traveling over the very deep loop current heading into night. Those in the Warned areas should have completed preparations to protect life and property or be just about done. Substantial life-threatening conditions possible in the north-central to northeast Gulf Coast and points inland are becoming more likely than not starting as soon as Friday afternoon or evening.
Ciel
11:45AM EDT 8 October, 2026 Update
Isaias is well on its way to becoming a Category 2 hurricane with a run for Major. While there are many indications that shear will induce a weakening trend from somewhat before to during landfall, this trend will almost certainly come too late to prevent significant, dangerous, even life-threatening impacts from surge, wind, flooding rain and tornadoes. Preparations to protect life and property within the warned areas should now be getting rushed to completion.
Ciel
11:45PM EDT 7 October, 2026 Update
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.
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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