Proposed Local Tropical Cyclone Watch/Warning (TCV)
Example #2 - Tropical Storm with Hurricane Potential
*** NOT FOR OPERATIONAL USE ***
Below you can compare the wind information provided in the current Local Tropical Cyclone Watch/Warning (TCV) text product with the proposed version which uses the “What, Where, When” format found in most other NWS products and includes explicit probabilistic forecast information to account for the uncertainty in the forecast, giving the user a heads up on the potential “worst case scenario” for their area. The text on the left below is the proposed future Local TCV. The current operational version is provided on the right. More information on this project can be found at this NWS page.
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Prototype Future Wind-Only Local TCV
Example #2 - TS with Hurricane Potential
CTZ004-212315-
/O.CON.KBOX.TR.W.1008.000000T0000Z-000000T0000Z/
Windham CT-
1103 AM EDT Sat Aug 21 2021
...TROPICAL STORM WARNING REMAINS IN EFFECT...
* WHAT...Winds from 39-57 MPH with higher gusts are likely, but there
is a 10% chance that winds will be greater than 74 MPH somewhere in
this area.
* WHERE...Windham County, Connecticut including the cities of:
- Putnam
- Willimantic
* WHEN...Sunday morning until early Monday morning
* IMPACTS...There is the potential for extensive wind impacts including
damage to structures along with many trees snapped or uprooted. There
is also the potential for large-scale and long-duration power and
communications outages.
* ADDITIONAL DETAILS...See https://www.weather.gov/box/tropical for
information on other potentially dangerous weather conditions with this storm.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Efforts to protect life and property should be underway. Remove or secure
loose items around the outside of your home. Move to safe shelter before the wind becomes hazardous. Take action now to prepare for power and communications outages. Ensure your devices are charged.
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Current Wind Information in the Local TCV
Example #2 - TS with Hurricane Potential
CTZ004-212315-
/O.CON.KBOX.TR.W.1008.000000T0000Z-000000T0000Z/
Windham CT-
1103 AM EDT Sat Aug 21 2021
...TROPICAL STORM WARNING REMAINS IN EFFECT...
* LOCATIONS AFFECTED
- Putnam
- Willimantic
* WIND
- LATEST LOCAL FORECAST: Equivalent Tropical Storm force wind
- Peak Wind Forecast: 30-40 mph with gusts to 50 mph
- Window for Tropical Storm force winds: Sunday morning until
early Monday morning
- THREAT TO LIFE AND PROPERTY THAT INCLUDES TYPICAL
FORECAST UNCERTAINTY IN TRACK, SIZE AND INTENSITY:
Potential for wind 74 to 110 mph
- The wind threat has remained nearly steady from the
previous assessment.
- PLAN: Plan for life-threatening wind of equivalent CAT 1 or
2 hurricane force.
- PREPARE: Remaining efforts to protect life and property
should be urgently completed. Prepare for considerable wind
damage.
- ACT: Move to safe shelter before the wind becomes hazardous.
- POTENTIAL IMPACTS: Extensive
- Considerable roof damage to sturdy buildings, with some
having window, door, and garage door failures leading to
structural damage. Mobile homes severely damaged, with some
destroyed. Damage accentuated by airborne projectiles.
Locations may be uninhabitable for weeks.
- Many large trees snapped or uprooted along with fences and
roadway signs blown over.
- Some roads impassable from large debris, and more within
urban or heavily wooded places. Several bridges, causeways,
and access routes impassable.
- Large areas with power and communications outages.
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