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NWS Winter Weather Products & Media Coordination
NWS Winter Weather Products & Media Coordination
NWS Winter Weather Products & Media Coordination
NWS Winter Weather Products & Media Coordination
HPC Winter Weather Products
HPC Winter Weather Products
HPC Winter Weather Products
HPC Winter Weather Products
HPC Winter Weather Products
HPC Winter Weather Products
HPC Winter Weather Products
HPC Winter Weather Products
HPC Winter Weather Products
HPC Winter Weather Products
HPC Winter Weather Products
HPC Winter Weather Products
HPC Winter Weather Products
HPC Winter Weather Products
HPC Winter Weather Products
HPC Winter Weather Products
SPC Winter Products
SPC Winter Products
WFO Outlooks
WFO Outlooks
WFO Winter Weather Watches
WFO Winter Weather Watches
WFO Winter Weather Warnings
WFO Winter Weather Warnings
WFO Winter Weather Warnings
WFO Winter Weather Warnings
WFO Winter Weather Advisories
WFO Winter Weather Advisories
WFO Winter Products
WFO Winter Products
Why VTEC
Why VTEC
Definition of a VTEC Event
Definition of a VTEC Event
VTEC Explained
VTEC Explained
Digital Forecast Database
Digital Forecast Database
WFO Coolaboration
WFO Coolaboration
Media Collaboration
Media Collaboration
Outreach
Outreach
Thank You for Attending
Thank You for Attending

Презентация на тему: «NWS Winter Weather Products Media Coordination». Автор: bkonop. Файл: «NWS Winter Weather Products Media Coordination.ppt». Размер zip-архива: 1636 КБ.

NWS Winter Weather Products Media Coordination

содержание презентации «NWS Winter Weather Products Media Coordination.ppt»
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1 NWS Winter Weather Products & Media Coordination

NWS Winter Weather Products & Media Coordination

National Weather Service Des Moines, IA

2 NWS Winter Weather Products & Media Coordination

NWS Winter Weather Products & Media Coordination

HPC/SPC/CPC Winter Weather Products WFO Winter Weather Products Media Coordination Internal NWS Collaboration Outreach

3 HPC Winter Weather Products

HPC Winter Weather Products

HPC Winter Weather Website: www.hpc.ncep.noaa.gov/wwd/winter_wx.shtml

4 HPC Winter Weather Products

HPC Winter Weather Products

HPC Snow Accumulation Graphics Probability forecast for days 1, 2 and 3

5 HPC Winter Weather Products

HPC Winter Weather Products

Freezing rain graphic like snowfall graphic Composite graphic combines 4, 8 and 12 snowfall probabilities and ice graphic

6 HPC Winter Weather Products

HPC Winter Weather Products

Current surface low position charts. Combines surface low position and composite radar. The link has 6 hours worth of charts at 15 minute intervals. Good for a quick overview.

7 HPC Winter Weather Products

HPC Winter Weather Products

HPC forecast significant surface low positions. Forecasts valid through 60 hours. Region with circles represent where lows historically verify 75% of the time.

8 HPC Winter Weather Products

HPC Winter Weather Products

Low tracks and clusters. Through 72 hours after model run initialization. Cluster diagram of various model runs with HPC preffered in black.

9 HPC Winter Weather Products

HPC Winter Weather Products

Experimental winter weather impact graphics. Model derived graphics with no forecaster intervention. Interactive display.

10 HPC Winter Weather Products

HPC Winter Weather Products

Text products include winter weather storm summary product and heavy snow and icing discussion.

11 SPC Winter Products

SPC Winter Products

SPC issues Mesoscale discussions for winter weather under certain circumstances. Mesoscale discussions focus on the “why” a significant winter weather event will likely occur within 3 hours. The discussion is accompanied by a graphic of the event.

12 WFO Outlooks

WFO Outlooks

Hazardous Weather Outlooks – Issued through day seven. Includes all hazards including winter weather. To be included in the HWO, the event should have at least a 30 percent chance of reaching at least advisory criteria.

13 WFO Winter Weather Watches

WFO Winter Weather Watches

Winter Weather Watches – Issued 12 hours through 48 hours. Issued with winter weather element has at least a 50 percent probability of occurrence. Winter weather watches are issued for: 1. Winter Storm: For heavy snow, sleet, ice or a combination of elements. 2. Blizzard: For blizzard conditions. 3. Wind Chill: For dangerous wind chill.

14 WFO Winter Weather Warnings

WFO Winter Weather Warnings

Winter Weather Warnings – Issued through 36 hours. Issued with winter weather element has at least a 80 percent probability of occurrence. Winter weather warnings are issued for: 1. Winter Storm: For a combination of heavy snow, sleet, ice or wind (25-34 mph). 2. Blizzard: At least 35 mph winds, ? mile visibility due to falling or blowing snow from 3 hours or more. Note there is no minimal snow forecast for a blizzard warning. 3. Wind Chill: For dangerous wind chills of less than 30 degrees F. 4. Heavy Snow: At least 6 inches of snow in 12 hours or 8 inches in 24 hours.

15 WFO Winter Weather Warnings

WFO Winter Weather Warnings

Winter Weather Warnings – 5. Sleet: For heavy sleet (1/2 inch or more). 6. Ice: For ice of ? inch or more.

16 WFO Winter Weather Advisories

WFO Winter Weather Advisories

Winter Weather Advisories – Issued through 36 hours with at least an 80 percent chance of occurrence. Issued for the same elements as winter weather warnings, but amount thresholds lower than warning criteria. Single element advisories. If there are two or more elements, the advisory can be combined into a “winter weather advisory”.

17 WFO Winter Products

WFO Winter Products

Winter Weather Products – Short term forecasts: Issued in the near term to emphasize short term forecast trends. Snowfall Public Information Statements: Issued occasionally during winter weather events with the latest snowfall totals. Local Storm Reports: Issued for damaging events such as ice storm damage and wind damage. Winter Weather watch/warning/advisory product (WSW): Product used to issue all winter weather watch/warning/advisory products. Updated four times daily in addition to initial issuance (4 am, 11 am, 4 pm and 9 pm). Non-Precipitation Weather watch/warning/advisory product (NPW): Product used to issue all non-precipitation watch/warning/advisory products. Updated four times daily in addition to initial issuance (4 am, 11 am, 4 pm and 9 pm).

18 Why VTEC

Why VTEC

Customers needed an easy-to-decode, uniform way to receive Watch/Warning/Advisory (W/W/A) information Allows start to finish tracking of W/W/As Allows for quicker dissemination of W/W/A information in conjunction with UGC header Helps to standardize our products for both internal and external use (webpages, TV crawls)

19 Definition of a VTEC Event

Definition of a VTEC Event

An event is a specific combination of phenomenon (e.g., Heavy Snow, Tornado, Wind) and level of significance (e.g., Watch, Warning, or Advisory). Common examples of events include: Phenomenon Level of Significance Heavy Snow Warning HS W Winter Storm Warning WS W Tornado Watch TO A Wind Advisory WI Y Each event given an Event Tracking Number (ETN), a four-digit number which stays with the event through its lifetime - from first issuance until upgrade, downgrade, cancellation or expiration.

20 VTEC Explained

VTEC Explained

21 Digital Forecast Database

Digital Forecast Database

Official forecast of the National Weather Service is the National Digital Forecast Database (NDFD). All text forecast products are derived from the NDFD using formatters.

22 WFO Coolaboration

WFO Coolaboration

NDFD needs to be a COOLABORATED forecast. WFO’s routinely chat to each other about the forecast using an internal chat service. Coordination calls and conference calls also used.

23 Media Collaboration

Media Collaboration

Using MEDIA CHAT. WFO Des Moines will have Media Chat open at a minimum whenever a “headline” is in effect. Media Chat will be routinely open during “normal” operations. Media Collaboration can occur between the media and/or between the media and the NWS using Media Chat. Other methods of coordination include calling on the Media Line (515-270-4516), or using the Media Hotline (Des Moines).

24 Outreach

Outreach

National Weather Service appreciates all public outreach done by the media. Without the media, awareness campaigns would not be effective. Interviews and including the NWS in your activities is encouraged. The NWS also appreciates all independent outreach efforts. Iowa Winter Weather Day – November 9, 2006 Severe Weather Awareness Week in 2007 – First full week of April.

25 Thank You for Attending

Thank You for Attending

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