🚨 Western Chesterfield; Eastern Chesterfield (Including Col. Heights): Special Weather Statement issued July 19 at 8:33PM EDT by NWS Wakefield VA 🚨 Corson, SD; Dewey, SD: Severe Thunderstorm Warning issued July 19 at 7:33PM CDT until July 19 at 8:15PM CDT by NWS Aberdeen SD 🚨 Emmons, ND: Severe Thunderstorm Warning issued July 19 at 7:32PM CDT until July 19 at 8:00PM CDT by NWS Bismarck ND 🚨 Davidson, TN; Rutherford, TN; Williamson, TN: Flash Flood Warning issued July 19 at 7:30PM CDT until July 19 at 9:30PM CDT by NWS Nashville TN 🚨 Burleigh, ND; Dickey, ND; Emmons, ND; Foster, ND; Grant, ND; Kidder, ND; LaMoure, ND; Logan, ND; McIntosh, ND; Morton, ND; Oliver, ND; Sheridan, ND; Sioux, ND; Stutsman, ND; Wells, ND: Severe Thunderstorm Watch issued July 19 at 7:28PM CDT until July 19 at 11:00PM CDT by NWS Bismarck ND 🚨 Bighorn Mountains Southeast; Northeast Johnson County: Special Weather Statement issued July 19 at 6:27PM MDT by NWS Riverton WY 🚨 Montgomery: None 🚨 Southwest Desert/Lower Gila River Valley: Special Weather Statement issued July 19 at 6:25PM MDT by NWS El Paso Tx/Santa Teresa NM 🚨 Floyd; Motley: Special Weather Statement issued July 19 at 7:22PM CDT by NWS Lubbock TX 🚨 Beaver, UT: Flash Flood Warning issued July 19 at 6:20PM MDT until July 19 at 8:00PM MDT by NWS Salt Lake City UT
Active Tropical Systems & Formation Outlook
A whole-basin summary of all active tropical cyclones and the NHC
Tropical Weather Outlook, generated with the
tropycal
package. Select a storm below for its official forecast and model guidance.
ZCZC MIATCDAT2 ALL
TTAA00 KNHC DDHHMM
Tropical Depression Two Discussion Number 2
NWS National Hurricane Center Miami FL AL022026
400 PM CDT Sun Jul 19 2026
The depression has generally changed little over the past several
hours. The circulation remains well organized, and deep convection
is gradually increasing near the center and in bands. An ASCAT pass
from around 15Z showed peak winds of around 25 kt, and data from the
Air Force Reserve reconnaissance aircraft show winds of about that
same value. Therefore, the initial intensity is held at 25 kt for
this advisory. The depression remains rather large and somewhat
diffuse, with the associated shower activity covering much of the
eastern Gulf.
The system has barely moved today. In fact, it has drifted
southeastward over the past few hours. This slow motion is due to
very weak steering currents, with the depression currently caught
between a ridge over the western Atlantic, another ridge over the
south-central and southwestern U.S., and a trough over the
northeast U.S. Most of the models show the cyclone drifting
northwestward over the next couple of days, and its outer bands
could bring tropical storm conditions to portions of the Florida
Panhandle beginning late Monday. A turn to the west or
west-northwest is likely on Tuesday as the ridge over the U.S.
builds eastward and becomes the primary steering feature. That
motion should take the system along or just offshore of the
northern Gulf coast during the middle and latter portions of the
week. The NHC track forecast has been shifted a bit to the south,
in best agreement with the usually best-performing aids HCCA, TVCN,
and GDMI.
The depression is expected to only slowly strengthen, especially in
the short term, due to its sprawling structure, nearby dry air, and
northeasterly vertical wind shear. Nonetheless, the system is
expected to become a tropical storm on Monday when it is offshore of
the Florida Panhandle. The shear could briefly let up during the
middle of the week, and if the system is still over water at that
time, it could strengthen some more. There remains a large spread
in the model solutions that range from the system remaining a
tropical depression to even becoming a hurricane. Given the mixed
environmental conditions and some expected land interaction, the NHC
intensity forecast lies between those solutions, but leans closer to
the upper end of the guidance. However, it is worth emphasizing
that the intensity forecast is of low confidence given the
uncertainty of how much land the system will interact with.
Key Messages:
1. The depression is expected to gradually strengthen and
could bring tropical storm conditions to portions of the Florida
Panhandle beginning late Monday, where a Tropical Storm Watch is in
effect,
2. Interests in Alabama, Mississippi, Louisiana, and Texas should
monitor the progress of this system, as watches could be required
for portions of that area over the next day or two.
3. Areas of flash flooding will be possible through Thursday along
the eastern and central Gulf Coast from western Florida to southern
portions of Alabama, Mississippi, and Louisiana.
FORECAST POSITIONS AND MAX WINDS
INIT 19/2100Z 27.5N 85.0W 25 KT 30 MPH
12H 20/0600Z 27.9N 85.2W 30 KT 35 MPH
24H 20/1800Z 28.2N 85.5W 35 KT 40 MPH
36H 21/0600Z 28.5N 86.0W 40 KT 45 MPH
48H 21/1800Z 28.9N 86.7W 40 KT 45 MPH
60H 22/0600Z 29.2N 87.5W 45 KT 50 MPH
72H 22/1800Z 29.4N 88.8W 50 KT 60 MPH
96H 23/1800Z 29.2N 91.9W 50 KT 60 MPH
120H 24/1800Z 29.3N 96.5W 40 KT 45 MPH...INLAND
$$
Forecaster Cangialosi
NNNN
ZCZC MIATCDEP5 ALL
TTAA00 KNHC DDHHMM
Tropical Storm Elida Discussion Number 21
NWS National Hurricane Center Miami FL EP052026
200 PM PDT Sun Jul 19 2026
Satellite imagery indicates that the convection within the inner
core of Elida has weakened since the previous advisory. The
convective weakening is likely in connection to the cyclone moving
over the colder ocean waters. In addition, the latest subjective
Dvorak intensity estimate from TAFB came in at T3.0/55 kt, which is
slightly lower than the previous estimate. However, the latest
ASCAT pass, while partial, did sample of peak surface winds away
from the center of around 45 kt. Thus the intensity for Elida has
been held at 50 kt for this advisory.
The initial motion is north-northwestward, or 340/8 kt. Elida is
expected to continue turning northward while gradually accelerating
over the next day or two as it becomes increasingly steered by a
deep-layer trough off the California coast. There was a slight
nudge to the west with this advisory, but the track guidance
maintains an overall good consistency from the last several periods.
As such only very minor adjustments have been made to the NHC
forecast track.
The convection in the inner core of Elida looks less impressive than
before, and this is an indication that the cyclone is starting to
weaken. The system is moving over sea-surface temperatures below 25
degrees C, and ocean waters are expected to cool further as the
system continues to move northward over the next couple days. In
addition, increasing southwesterly vertical wind shear and drier
mid-level air should also contribute to a steady weakening trend.
Elida is forecast to lose its deep convection and become a remnant
low on Tuesday, with the remnant low dissipating by late Wednesday.
The NHC intensity forecast is essentially unchanged from the
previous advisory.
FORECAST POSITIONS AND MAX WINDS
INIT 19/2100Z 23.2N 125.9W 50 KT 60 MPH
12H 20/0600Z 24.8N 126.6W 45 KT 50 MPH
24H 20/1800Z 27.4N 127.2W 40 KT 45 MPH
36H 21/0600Z 30.1N 127.5W 35 KT 40 MPH
48H 21/1800Z 32.7N 127.5W 30 KT 35 MPH...POST-TROP/REMNT LOW
60H 22/0600Z 34.9N 127.5W 25 KT 30 MPH...POST-TROP/REMNT LOW
72H 22/1800Z 37.1N 127.4W 20 KT 25 MPH...POST-TROP/REMNT LOW
96H 23/1800Z...DISSIPATED
$$
Forecaster Katz/Pasch
NNNN
ZCZC MIATCDEP1 ALL
TTAA00 KNHC DDHHMM
Tropical Storm Fausto Discussion Number 4
NWS National Hurricane Center Miami FL EP062026
200 PM MST Sun Jul 19 2026
The system is becoming more consolidated in appearance, with less
southwest to northeast elongation than seen earlier today. A
recent ASCAT pass over the system showed a believable 32-kt surface
wind vector over the northwest quadrant, and TAFB gave a subjective
Dvorak T-number of 2.5. This is in agreement with objective AIDT
intensity estimates of 35 kt from UW-CIMSS. Based on this
information, the system is being upgraded to Tropical Storm Fausto
on this advisory. The storm has fairly well-defined upper-level
outflow over its southern semicircle.
There is still some uncertainty in the center position, but the
best estimate of initial motion is 285/11 kt. A mid-tropospheric
ridge lies to the north of Fausto with a weakness in the ridge,
associated with departing Tropical Storm Elida, to the northwest.
The ridge should gradually build back westward in Elida's
wake. However, there will probably be just enough remaining
weakness in the ridge to induce a slightly more northwestward
motion of Fausto during the next 48-72 hours. The NHC track
forecast is a blend of the Google DeepMind and corrected dynamical
model consensus guidance.
The environment ahead of Fausto looks quite conducive for steady to
rapid intensification, with low vertical wind shear and a very
moist low- to mid-level air mass. The SHIPS Rapid Intensification
(RI) Index shows a significantly higher than normal likelihood of
RI, and the official intensity forecast explicitly shows RI
occurring in 24 to 48 hours. This rapid strengthening could
occur sooner depending on how soon Fausto develops a
well-defined inner core.
FORECAST POSITIONS AND MAX WINDS
INIT 19/2100Z 12.4N 112.7W 35 KT 40 MPH
12H 20/0600Z 13.1N 114.1W 45 KT 50 MPH
24H 20/1800Z 14.2N 115.8W 55 KT 65 MPH
36H 21/0600Z 15.4N 117.3W 70 KT 80 MPH
48H 21/1800Z 16.3N 118.7W 85 KT 100 MPH
60H 22/0600Z 16.7N 120.1W 95 KT 110 MPH
72H 22/1800Z 17.0N 121.8W 90 KT 105 MPH
96H 23/1800Z 17.6N 126.0W 85 KT 100 MPH
120H 24/1800Z 18.5N 131.3W 75 KT 85 MPH
$$
Forecaster Pasch
NNNN
HAFS and GEFS guidance is only available for storms in the US/NHC domain (Atlantic & East/Central Pacific). For this system, the basin summary and best-track position are shown.
ECMWF 10-m Streamlines
This map visualizes near-surface winds from the ECMWF operational model using streamlines — continuous curves that show the direction of the wind at every point. Streamlines help us visually detect patterns of atmospheric flow, such as jets, troughs, and areas of rotation.
Forecasters at the NHC monitor 10-meter wind fields for signs of a closed low-level circulation — a common feature of early tropical cyclone formation. When streamlines wrap into a tight, circular pattern and form a closed loop, it may signal that a system is transitioning from a disorganized disturbance into a structured cyclone.
This early organization of wind flow is a key threshold in classifying an area as a potential tropical cyclone. While other ingredients like convection and mid-level humidity are also necessary, closed low-level circulation is often the first structural milestone forecasters look for.
Look for small, circular loops in the streamlines over oceanic regions — especially where other environmental factors also align for storm formation.
ECMWF Predictions
No active storm found in ECMWF data at this time.
Environmental Indicators
Hypothetical TC Drift Paths
This map displays hypothetical tropical cyclone (TC) paths projected from genesis-favorable zones identified by an environmental mask. These paths are computed using the Emanuel Beta and Advection Model, a physically based framework that estimates the motion of nascent cyclones by combining steering-level winds and planetary rotation effects.
The model blends winds from two critical pressure levels — 850 hPa (lower troposphere) and 250 hPa (upper troposphere) — weighted toward the lower level where most of a tropical cyclone's mass resides. It also incorporates a background component associated with beta drift, which arises from the variation of the Coriolis force with latitude.
Each pink trajectory represents a storm initialized from a grid cell where all five environmental thresholds were favorable: high CAPE, low vertical wind shear, high mid-level humidity, warm SSTs, and positive low-level vorticity. Arrows darken with time, tracing the cyclone’s evolution in 6-hour steps. These tracks can move over land given the steering winds, but in reality these storms weaken quickly when no longer over warm water. This means the tracks that move over significant would likely die out quickly and are not well represented in this model.
Hypothetical storms often drift westward and poleward, steered by large-scale tropical flow and Earth's rotation — this helps forecasters anticipate where early-stage disturbances might evolve into organized storms.
Pressure & Rainfall (hPa)
This chart shows 24-hour forecasts of surface pressure (in hPa) and precipitation (in mm) for select U.S. cities.
The data comes from the Open-Meteo API,
which sources its predictions from high-resolution numerical weather models like ICON (from the German Weather Service)
and ECMWF's IFS. These are advanced general circulation models (GCMs) that solve physical equations governing the
atmosphere — including thermodynamics, fluid motion, and radiation — to simulate and forecast future states of weather.
A sudden drop in pressure may signal the approach of a developing storm system. Increasing rainfall intensity often
tracks with tropical activity or frontal systems. These paired indicators help visualize evolving atmospheric instability and potential hazards.
NBDC Gulf Buoy Data
This data comes from the National Data Buoy Center (NDBC), a division of NOAA responsible for monitoring ocean
and atmospheric conditions using moored buoys, coastal stations, and drifting floats. These sensors play a vital role in
tracking tropical cyclone development by recording variables like wind speed,
barometric pressure, air & sea surface temperatures, and wave height — all of which
help determine storm structure and intensification.
A sudden drop in sea-level pressure or a spike in wind gusts can signal rapid cyclone strengthening.
Water temperature above ~26°C is a key fuel source for tropical cyclones. Wave and swell height give insight
into the storm’s reach and energy transfer across the ocean. Monitoring these in real time helps improve forecasts and early warnings.
Wind: NNW (330°), 11.7 kt | Gust: 13.6 kt
Pressure: 29.96 steady | Air Temp: 85.8 °F
Water Temp: 86.2 °F | Dew Point: 78.1 °F
Swell: 2.0 ft | Wind Wave: 2.6 ft
NWS U.S. Radar
The National Weather Service (NWS) collects radar data using the NEXRAD (Next Generation Radar) network —
a nationwide system of over 150 high-resolution Doppler radar stations. Radar works by emitting pulses of energy
that bounce off precipitation (like raindrops, hail, or snow) and return to the radar dish. Doppler radar not only detects the
location and intensity of storms, but also their motion — by measuring shifts in frequency caused by movement of particles toward
or away from the radar site. This allows meteorologists to spot rotating storms and potential tornadoes in real time.
GOES 15-min Satellite
The GOES (Geostationary Operational Environmental Satellite) system is operated by NOAA
and provides continuous weather observation over the Americas. Orbiting 22,300 miles above Earth,
GOES satellites deliver high-resolution imagery every 15 minutes, helping track tropical systems, cloud formation,
and atmospheric motion in real time. The Geocolor imagery shown here combines visible and infrared data
to highlight clouds, land, and sea in a natural-looking format.
GOES Band 13 – Infrared (IR) Imagery
Band 13 (10.3 µm) is one of the most important infrared channels for tropical meteorology, measuring emitted radiation from cloud tops.
Colder colors (red, yellow) signal deep convection, where strong thunderstorms punch through the upper atmosphere.
These features often indicate the early stages of tropical cyclone formation.
Most recent GOES Band 13 image. Provided by NOAA/NESDIS/STAR.