Difference between revisions of "Hârn Venârivè Appendix XVII Weather"

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Appendix XVII: Weather

Note: Venârivè 217 to 232

Note: ADD Sidebars for ALL OPTIONALOPTIONAL sections. Optional Addtions can further expand the Weather System in many ways and may even bring further developmental options later on.

• Venârivè 217

Weather is complicated to simulate accurately. Over an area as large as that covered by Venârivè there are far too many climate zones and local weather patterns to sum up in any reasonable number of charts or lookup tables.

We have, however, provided base weather charts for the major climate zones, and some exemplar 'location-specific' weather charts. We plan to provide more such charts for important locations, and include them in future publications.

Approaches to determining the weather

There are several approaches to determining the appropriate weather.

Gamemaster determines the weather

The Gamemaster is the final arbiter of the weather at any particular location or time. The Gamemaster may chose to use the tools provided here, in part or as a whole, but may simply determine the weather required by plot or story. If the story requires that it rains, then it should rain.

Gamemasters can also make use of the precipipation layers on the Venârivè map in determining weather results in this manner.

Use the base weather charts

The base weather charts provide a reasonable approximation of the weather conditions across the broad climate zones. They are, of course, imperfect, as they do not (by themselves) take account of local conditions. But as a guide to Gamemaster decision making, they are certainly useful.

Use a location-specific weather chart

We have included four examples of location-specific weather charts in this publication - one for Ázadmêre, one for Énselet in Shôrkýnè, one for the region around Isýnen on the northern coast of Hèpekéria, and one for the city of Ubárian in Tríerzòn.

Future publications will include additional location specific charts, and we will make others available for download.

Develop a location-specific weather chart

Finally, we also plan to provide Gamemasters with the tools to develop their own 'location-specific' charts, using a range of optional rules. This will be available as a download from Kelestia.com.

It is entirely up to each Gamemaster and gaming group which approach they take to determining the weather in Venârivè. We hope we have provided sufficient options to meet the needs of all groups.

Climate Zones

• Venârivè 218

Note: ADD Köppen climate classification schemes to each Climate and other data.

A Gamesmaster can use the descriptions below to determine the weather for each of the six principal climate zones across Venârivè as shown on the maps on page 222, which also indicate precipitation levels. A base weather chart is also provided for each of these climate zones. Finally, Gamesmasters can also make some assumptions about the climate zone if they know the predominant vegetation type for an area.

Subpolar

The Subpolar climate zone generally occurs at latitudes from 50 to 60 degrees. The predominant vegetation in this climate zone is needleleaf forests and the prevailing wind direction is southwesterly, shifting to northerly in winter. The subpolar zone is characterized by cold winters and a short, cool summer. Regions with this climate include northeastern Ivínia, Áltôr, and northern Mengóla.

Cool Temperate

The Cool Temperate climate zone is one of the most varied usually occupying regions between latitudes 35 and 55 degrees. Though the prevailing winds are southwesterly, they often shift. They carry warm moist air that frequently makes coastal regions cloudy with cool damp summers and mild wet winters. Cool temperate coastal regions of Venârivè include Hârn, southwestern Ivínia, Hârbáal, Huriséa, and Shôrkýnè where the predominant vegetation is deciduous forests, with occasional temperate rain forests. Further inland the winters are cold and summers are hot, with less precipitation. Regions with this climate include Quârphor, parts of Reksýna, as well as northern Tríerzòn and eastern Ûmélria. These are characterised by deciduous forests.

Finally, where a mountain range separates a region from the moist south westerlies of the cold temperate zone there is very much less rain. This is broadly true of the remaining parts of Reksýna and of Ketârh where the climate and dry winds favour large expanses of grass with small stands of scrub and bushes.

Warm Temperate

The Warm Temperate climate zone generally occurs between 25 and 40 degrees of latitude and is dominated by moist southwesterly winds. Occasional storms introduce significant variation in wind direction during summer when they tend to be southerly. Winters, by contrast, are much calmer and mild with occasion freezes compared to hot and humid summers. This climate characterises Emélrenè, Palíthanè, central Tríerzòn, northern Ázeryàn, and Ûmélria western where the predominant vegetation is deciduous forests with some tropical evergreens.

Subtropical

The Subtropical climate zone generally occurs between 15 and 35 degrees of latitude. Prevailing northwesterly winds shift and strengthen to moist south westerlies at the end of the autumn making winters mild but rainy. They shift again to weaker south easterlies in the spring before north easterly winds herald hot and dry summers. Regions with this climate include southern Tríerzòn, southwestern Ázeryàn, northern and eastern Hèpekéria, Karéjia, coastal Býria, and the eastern Venârian. The predominant vegetation is evergreen hardwood and scrub except where rain shadowing produces a much drier habitat such as the Àzeryáni Drylands.

Tropical (Dry)

The Dry Tropical climate zone generally occurs between 5 and 25 degrees of latitude. Prevailing winds are northeasterlies except in winter when they shift to northerlies. Where they are dry in winter and wet in summer the predominant vegetation is a savannah of grass with clumps of trees and brush. Relatively stable weather is disturbed by occasional violent tropical storms during the summer and autumn. Regions with this climate include Tuvâra, Péchalâr, Falânia and northern Thónia.

Where the winds are dry all year round due to the geography of a region there is very little precipitation. Warm winters and extremely hot summers produce sand deserts or drylands of hardy cactus and scrub. Regions with this climate include the Hèpekérian interior and the Béshakan desert.

Tropical (Wet)

The Wet Tropical climate zone generally occurs between 0 and 10 degrees of latitude. The regions accessible from Venârivè have prevailing northwesterly winds but seasonal variation and geography can produce pronounced wet and dry seasons as when the winds shift to southwesterlies in summer. The predominant vegetation is dense rain forest such as cover much of Mafán, Chogôro, and southern Thónia.

Variation in Prevailing Wind Direction

While the overall prevailing wind directions for each climate zone are given here, local wind conditions can and do vary. The most significant of these are indicated on the Venârivè map, and included on the map on page 222.

Future location-specific weather charts will adjust for these local wind conditions; but Gamemasters should feel free to make their own adjustments.

Overview of the Weather Charts

• Venârivè 219

Each weather chart takes the form of four, seasonal, columns, each of twenty boxes. In each box is a set of symbols that describe the weather for a single watch of four hours; see Units of Time (page 67). Each box on the weather chart has the following symbols:

Overview of the Weather Charts Table

INSERT TABLE

Weather Table Template Column Test

Note: ADD |- <!-- Row 1 --> <!-- Column 1 -->

Weather Table Symbol Definitions

Temperature (Day and Night)

The weather charts indicate the temperature for each watch. The first temperature indicated applies during the day, the second (in parentheses), at night: thus, Warm (Cool).

The temperatures indicated are subjective but 'feel like' the following temperature ranges:

• Sweltering (Swlt) – 35 °C (95 °F) or more; dangerous without shade and water.
• Hot (Hot) – 26 to 35 °C (79 to 95°F).
• Warm (Warm) – 16 to 25 °C (61 to 77°F).
• Cool (Cool) – 10 to 15 °C (50 to 59°F).
• Cold (Cold) – 1 to 10 °C (34 to 50°F); unpleasant, warm coverings required.
• Freezing (Frzg) – 0°C (32°F) or less; dangerous if individuals are unprotected.

Wind Direction and Windforce

The letter (NW, N, NE, SE, S, and SW) indicates the main direction from which the wind blows during the watch. The direction relates to the hex-edge. Each entry provides a range for windforce: 0‑2, 1-3, or 2-4.

Windforce Interpretation Table

INSERT TABLE

Cloud and Precipitation Symbols

The following are the types of cloud cover and precipitation indicated on the weather charts:

INSERT TABLE

Cloud and Precipitation Symbols

NOTE: Outside Table:  Webdings, j WeatherFont

Clear - means less than 25% cloud cover  

Cloudy - means between 25% and 75% cloud cover  

Overcast - means more than 75% cloud cover

Weather Change Die-Type

Each watch (4 hour period), the box used may change according to a die roll, and will tend, on average, to cycle around the chart.

Each box in the weather chart indicates the die-type which should be rolled to determine if there is to be a change in the weather from watch to watch. The possible die-types are:

Weather Change Die-Type

INSERT TABLE

Base Weather Charts

• Venârivè 220

One base chart is given in the following pages for each of several climate zones. This represents a location in the selected climate zone at a low elevation without rain shadow or slope. They are not adjusted for elevation or local shifts in prevailing winds.

Using the Base Weather Charts

For a weather report when the previous watch's weather is unknown the Gamemaster can roll 1d20 and place a marker on the chart for the appropriate zone and season in the numbered box indicated by the roll. Alternatively they can begin with the grey box which indicates the 'most likely starting point' for weather where the situation in the preceding watch isn't known.

As noted above, each box on the weather charts indicates the die-type that should be rolled to determine weather changes. Once the box for the first watch is identified the Gamemaster rolls the die-type indicated to test if the weather changes, and in what direction, up or down the table. The weather change table below shows how the die roll is interpreted:

INSERT TABLE

This means that higher die-types will tend to result in more stable weather; lower die-types indicate a propensity for more rapid changes in weather from watch to watch.

If the marker moves off the chart, re-enter at the other end. If the climate zone or season changes, switch columns or charts without shifting the box number.

Interpreting Weather Chart Results

Gamemasters can interpret weather generated by either base or location-specific charts, and add detail as described below.

Actual Windforce

Actual windforce in across the ranges indicated on the weather charts (0-2, 1-3, and 2-4) can be determined roling 1d10 on the following table :

INSERT TABLE

Variable Precipitation (optional)

Precipitation is generally considered to be rain, by default, but differing temperature ranges may give a chance for different results:

INSERT TABLE

Chance of Showers (Optional)

Continuous precipitation (rain or snow) is constant through the watch, but rain or snow showers can optionally start on a roll of 1 or 2 on a d6 and stop on a roll of 5 or 6.

The Gamemaster can roll every 15 minutes to every hour, as it suits them, but the interval chosen should be consistent to avoid weather that appears entirely unpredictable to players.

Venârivè Map Precipitation Levels (Optional)

The Venârivè map includes layers (one using colours, the other overlay symbols) which provide indicative data on precipitation levels across the region, which can be used to interpret the weather in a given location:

INSERT TABLE

Gamemasters should feel free to adjust the precipitation generated from the base weather charts to ensure a better fit with the indicated precipitation levels on the map.

A more detailed system for ensuring better fit with indicated precipitation levels will be provided in the full weather system, for those Gamemasters who wish to use it.

Example Location-Specific Charts

• Venârivè 221

The following example location-specific weather charts are included following the base weather charts.

Chélemby City, Gulf of Shôrkýnè

Chélemby city, on the island of Chel in the Gulf of Shôrkýnè, is in the Cool Temperate climate zone. It is at sea-level, and has no significant rain shadow or slope. It thus uses the unadjusted 'Cool Temperate' base weather chart.

Ázadmêre, Hârn

Ázadmêre is the kingdom and city of the Kúzhai on Hârn, located in the Sôrkin Mountains. It is in the Cool Temperate climate zone, at a high elevation. The prevailing winds are from the southwest. The city of Ázadmêre is in a rain shadow caused by the Sôrkin Mountains and the lands of Káldôr from the southeast, south, southwest, and northwest, more rain makes it over the Sôrkins form the north and northeast.

A location-specific weather chart is provided for Ázadmêre.

Énselet, Shôrkýnè

Énselet is the main town of the duchy of Énsel, in eastern Shôrkýnè. The town lies on the banks of the Benâmo River; to the north are the Chaléo Hills, to the south, southeast and southwest are the Nadámia Mountains. Énselet is in the Cool Temperate climate zone, and the prevailing winds in this part of Shôrkýnè are northwesterly, off the Gulf of Shôrkýnè.

A location-specific weather chart is provided for Énselet.

Isýnen, Hèpekéria

Isýnen city, on the northern coast of Hèpekéria, is in the Subtropical climate zone. The prevailing wind direction is northeasterly (NE), with a winter shift to northwesterlies (NW). It is at sea-level, and is in a rain shadow from the southeast, south and southwest.

A location-specific weather chart is provided for Isýnen.

Ubárian, Tríerzòn

Ubárian city, in central Tríerzòn, is in the Warm Temperate climate zone. The prevailing wind direction is southwesterly (SW). It is a normal elevation, and is rain shadowed from the southwest (SW), southeast (SE), northwest (NW), north (N), and northeast (NE). It receives more precipitation from the south (S).

A location-specific weather chart is provided for Ubárian.

Additional location-specific weather charts will be made available by Keléstia Productions, and the forthcoming optional rules will enable Gamemasters to develop their own. This will be available as a download from Kelestia.com.

Weather Maps

• Venârivè 222

Venârivè Climate Zones and Prevailing Winds

Venârivè Precipitation Levels

Subpolar Base Weather Chart for Venârivè

• Venârivè 223

This Subpolar Base Weather Chart applies in a low altitude location, which has no rain shadow or slope, and no wind shelter. The prevailing wind direction is assumed to be southwesterly (SW) for all seasons except winter, when it is assumed to be northerly (N).

Weather Table 1

Note: ADD Table within Table, or figure a way to create floating Tables to create a page with Tables side-by-side.

http://www.shealladh.com/Weather.pdf

Cool (Cool)  d10 SW 0-2
Warm (Cool)  d10 S 0-2
Frzg (Frzg)  d8 SE 0-2

Cool (Cool)  d10 S 0-2
Warm (Cool)  d10 SW 0-2
Cold (Frzg)  d4 S 0-2

Cool (Cool)  d10 SW 1-3
Cool (Cold)  d8 NW 1-3
Cool (Cold)  d6 SW 1-3

Warm (Cool)  d4 NW 2-4
Cool (Cool)  d10 SW 1-3
Cold (Frzg)  d8 NW 0-2

Cool (Cool)  d10 SW 1-3
Cold (Cold)  d4 NW 2-4
Cold (Frzg)  d8 N 1-3

Warm (Cool)  d8 NW 1-3
Cold (Cold)  d8 NW 1-3
Cold (Frzg)  d8 NE 1-3

Warm (Cold)  d4 N 1-3
Cold (Frzg)  d4 N 2-4
Cold (Frzg)  d4 SE 2-4

Cool (Cold)  d4 NE 0-2
Cool (Cold)  d4 NE 1-3
Frzg (Frzg)  d8 NE 1-3

Warm (Cool)  d6 SE 0-2
Warm (Cool)  d6 SE 0-2
Cold (Frzg) j d4 NE 2-4

Hot (Cool)  d10 S 0-2
Cool (Cool)  d6 S 1-3
Cold (Frzg)  d4 SE 1-3

Warm (Warm)  d8 SW 1-3
Cool (Cold)  d6 SW 2-4
Cool (Cold)  d4 S 1-3

Warm (Cool)  d8 S 0-2
Cool (Cool)  d6 S 1-3
Warm (Cool)  d4 SW 2-4

Cool (Cool)  d8 SW 2-4
Warm (Cool)  d10 SW 1-3
Cool (Cold)  d4 S 1-3

Cool (Cool)  d10 SW 1-3
Cool (Cold)  d4 NW 2-4
Cool (Cold)  d4 SW 2-4

Cool (Cold)  d10 SW 1-3
Cold (Frzg)  d8 SW 2-4
Cold (Frzg)  d4 SW 1-3

Cold (Cold)  d8 NW 0-2
Frzg (Frzg)  d8 NW 1-3
Cold (Frzg) j d4 NW 1-3

(Gamemasters should feel free to adjust the precipitation derived from this base weather chart, taking into account local conditions. The precipitation levels indicated on the Venârivè map can provide guidance in these adjustments).

(The grey box indicates the 'most likely starting point' in the table for that season, where the previous watch's weather is unknown).

Weather Table Symbol Definitions

Cool Temperate Base Weather Chart for Venârivè

• Venârivè 224

This Cool Temperate Base Weather Chart applies in a low altitude location, which has no rain shadow or slope, and no wind shelter. The prevailing wind direction is assumed to be southwesterly (SW).

A

INSERT TABLE

(Gamemasters should feel free to adjust the precipitation derived from this base weather chart, taking into account local conditions. The precipitation levels indicated on the Venârivè map can provide guidance in these adjustments).

(The grey box indicates the 'most likely starting point' in the table for that season, where the previous watch's weather is unknown).

Warm Temperate Base Weather Chart for Venârivè

• Venârivè 225

This Warm Temperate Base Weather Chart applies in a low altitude location, which has no rain shadow or slope, and no wind shelter. The prevailing wind direction is assumed to be southwesterly (SW), except in summer when it is southerly (S).

A

INSERT TABLE

(Gamemasters should feel free to adjust the precipitation derived from this base weather chart, taking into account local conditions. The precipitation levels indicated on the Venârivè map can provide guidance in these adjustments).

(The grey box indicates the 'most likely starting point' in the table for that season, where the previous watch's weather is unknown).

Subtropical Base Weather Chart for Venârivè

• Venârivè 226

This Subtropical Base Weather Chart applies in a low altitude location, which has no rain shadow or slope, and no wind shelter. The prevailing wind direction is assumed to be southeasterly (SE) in spring, northeasterly (NE) in summer, northwesterly (NW) in autumn, and southwesterly (SW) in winter.

A

INSERT TABLE

(Gamemasters should feel free to adjust the precipitation derived from this base weather chart, taking into account local conditions. The precipitation levels indicated on the Venârivè map can provide guidance in these adjustments).

(The grey box indicates the 'most likely starting point' in the table for that season, where the previous watch's weather is unknown).

Tropical (Dry) Base Weather Chart for Venârivè

• Venârivè 227

This Tropical (Dry) Base Weather Chart applies in a low altitude location, which has no rain shadow or slope, and no wind shelter. The prevailing wind direction is assumed to northeasterly (NE), except in winter when it is northerly (N).

A

INSERT TABLE

(Gamemasters should feel free to adjust the precipitation derived from this base weather chart, taking into account local conditions. The precipitation levels indicated on the Venârivè map can provide guidance in these adjustments).

(The grey box indicates the 'most likely starting point' in the table for that season, where the previous watch's weather is unknown).

Tropical (Wet) Base Weather Chart for Venârivè

• Venârivè 228

This Tropical (Wet) Base Weather Chart applies in a low altitude location, which has no rain shadow or slope, and no wind shelter. The prevailing wind direction is assumed to northwesterly (NW), except in summer, when it is southwesterly (SW).

A

INSERT TABLE

(Gamemasters should feel free to adjust the precipitation derived from this base weather chart, taking into account local conditions. The precipitation levels indicated on the Venârivè map can provide guidance in these adjustments).

(The grey box indicates the 'most likely starting point' in the table for that season, where the previous watch's weather is unknown).

Location-Specific Weather Charts

Location-Specific Weather Chart: Ázadmêre, Hârn

• Venârivè 229

This Location-Specific Weather Chart applies for the city of Ázadmêre in the Sôrkin Mountains on the island of Hârn. The city is in the Cool Temperate climate zone, is at High elevation, and has significant rain shadow from the northwest (NW), southwest (SW), south (S), southeast (SE) . It is not rain-shadowed from the north (N) and northeast (NE). The prevailing wind direction is southwesterly (SW).

A

INSERT TABLE

(The grey box indicates the 'most likely starting point' in the table for that season, where the previous watch's weather is unknown).

Location-Specific Weather Chart: Énselet, Shôrkýne

• Venârivè 230

This Location-Specific Weather Chart applies for the town of Énselet on the Benámo River in Shôrkýnè. The city is in the Cool Temperate climate zone, at low elevation. It is rainshadowed from the north (N), northeast (NE), southeast (SE), south (S) and southwest (SW), but not from the northwest (NW). The prevailing wind direction at Énselet is northwesterly (NW), although in summer it is southwesterly (SW).

A

INSERT TABLE

(The grey box indicates the 'most likely starting point' in the table for that season, where the previous watch's weather is unknown).

Location-Specific Weather Chart: Isýnen, Northern Hèpekéria

• Venârivè 231

This Location-Specific Weather Chart applies for the city of Isýnen on the northern coast of Hèpkéria. The city is in the Subtropical climate zone, is at sea-level, and has rain shadow form the south (S), southeast (SE), and southwest (SW). The prevailing wind direction is northeasterly (NE), with a winter change to northwesterly (NW).

A

INSERT TABLE

(The grey box indicates the 'most likely starting point' in the table for that season, where the previous watch's weather is unknown).

Location-Specific Weather Chart: Ubárian, Central Tríerzòn

• Venârivè 232

This Location-Specific Weather Chart applies for the city of Ubárian, in central Tríerzòn. The city is in the Warm Temperate climate zone, is at normal elevation, and is rain shadowed from all directions except the south (S). The prevailing wind direction is southwesterly (SW), but southerly (S) in the summer.

A

INSERT TABLE

(The grey box indicates the 'most likely starting point' in the table for that season, where the previous watch's weather is unknown).

Köppen climate classification scheme symbols description table

INSERT TABLE

Note: {|class="wikitable floatright"

• From Köppen Climate Classification

AA

• A

Notes

• A
  • A