Forecast track
The official forecast track, drawn by this site from JTWC’s Warning 11 (). Not an official JTWC product. Data: JTWC. JTWC’s own.
Map
This map draws the contiguous United States, and Guam and Northern Mariana Islands are beyond it. What is in force there is listed under “In force in this area”.
In force in this area 6
- Typhoon Warning1until 20:00Z
- Tropical Storm Warning1until 20:00Z
- Coastal Flood Warning11 not yet in effect · until 18 Oct 18:00Z
- High Surf Warning11 not yet in effect · until 18 Oct 18:00Z
- Typhoon Watch1until 08:00Z
- Flood Watch1until 18 Oct 06:00Z
Every alert in this area, most urgent first
- Typhoon WarningGuam Coastal Waters; Rota Coastal Waters; Guam; Rotauntil · NWS Tiyan GU
- Tropical Storm WarningTinian Coastal Waters; Saipan Coastal Waters; Tinian; Saipanuntil · NWS Tiyan GU
- Coastal Flood WarningGuam; Rota; Tinian; SaipanFrom · until · NWS Tiyan GU
- High Surf WarningGuam; Rota; Tinian; SaipanFrom · until · NWS Tiyan GU
- Typhoon WatchTinian; Saipanuntil · NWS Tiyan GU
- Flood WatchGuam; Rota; Tinian; Saipanuntil · NWS Tiyan GU
Most urgent first, by the Briefing’s ranking. Checked .
Spotlight: Forecast track
1 of 12Intensity forecast
The official intensity forecast, drawn by this site from JTWC’s Warning 11 (). Not an official JTWC product. Data: JTWC. JTWC’s own.
Satellite
The storm’s page shows it on NASA GIBS (NOAA GOES, JMA Himawari)’s imagery, loaded by your browser. Himawari at 8° from the storm's meridian.
Imagery from NASA GIBS: NOAA GOES and JMA Himawari.
Model guidance
The models’ tracks, which are not a forecast, drawn by this site from JTWC’s Warning 11 (). Not an official JTWC product. Data: JTWC. JTWC’s own.
Flash-flood risk, Day 1
- Marginal
WPC’s excessive rainfall outlook, to , issued : a chance of flash flooding, in four categories. Data: NOAA/WPC.
River gauges in flood
No river, coastal or lake gauge in this area is in flood, observed or forecast.
NWS’s gauges at flood stage or above in the area, worst first, each with its forecast hydrograph on Rain & rivers. Data: NOAA/NWPS.
Rain expected and rain that fell
WPC’s rain forecast and MRMS’s radar estimate of the rain that fell, on the Briefing’s map for the area.
Data: NOAA/WPC, NOAA/NSSL MRMS.
SPC Day 1 outlook
- General Thunderstorms Risk
SPC’s Day 1 categorical outlook, valid to , issued . SPC’s categories, as drawn. Data: NOAA/SPC.
Watches
No tornado or severe thunderstorm watch in force in this area.
SPC’s watches, by number, matched by the counties they list. Data: NOAA/SPC.
Mesoscale discussions
No mesoscale discussion reaches this area.
SPC’s mesoscale discussions whose outline reaches the area. Data: NOAA/SPC.
Storm ingredients
SPC’s hourly mesoanalysis, observed soundings and model guidance for the area, on the Analysis tab with its own clocks.
Drawn by the Analysis tab’s own renderer. Data: NOAA/SPC, NOAA/NCEP.
Radar
NOAA’s radar for the area, loaded by your browser as on the Radar page.
Live tiles; the radar keeps no last-good copy.
What changed, last 60 minutes
since , when this server began watching this areaNothing has changed since 02:25Z.
The products’ own words and times, and what is no longer in force since the last read. Never written by AI.