A weather map illustration for Missouri and Arkansas for tonight, showing precipitation and text temperatures, using a WSI-style color scheme. The map will cover the entire states of Missouri and Arkansas, clearly delineating state boundaries. A Lambert Conformal Conic projection will be used to minimize distortion across the region.

Data Visualization:

• Precipitation: Precipitation data will be displayed using a color-coded scheme consistent with WSI standards. The legend will clearly indicate precipitation levels (e.g., trace, light, moderate, heavy) with corresponding color ranges. Shading will be used to represent the intensity and distribution of precipitation across the region. Isohyets (lines of equal precipitation) may be included for a more detailed representation.

• Temperature: Text-based temperatures will be displayed for several key cities and counties, including but not limited to: St. Louis, Kansas City, Springfield (MO), Little Rock, Fayetteville, and Fort Smith. Temperatures will reflect the predicted low temperatures for tonight. Temperature values will be clearly legible and positioned near the respective city/county labels.

• Cities and Counties: Major cities and counties within Missouri and Arkansas will be labeled clearly and legibly, using a font size appropriate for the map scale. The labels will be strategically placed to avoid overlapping with other map elements.

• State Boundaries: The boundaries of Missouri and Arkansas will be clearly defined using a distinct line style and color.

• Legend: A comprehensive legend will be included, explaining the color-coded precipitation levels and temperature ranges. The legend will be clearly labeled and easily understandable.

• Time Period: The map will prominently display the time period covered by the forecast: "Tonight".

• Style: The overall style will be clean, professional, and easy to read, emulating the visual style of weather maps from reputable sources like The Weather Channel. The color palette will adhere to the WSI color scheme for consistency and professional appearance. The map will be designed for optimal readability and clarity, suitable for use in news reports, websites, or other public-facing communication.

Data Sources: The illustration will require accurate and up-to-date weather data for Missouri and Arkansas, including predicted precipitation amounts and temperatures for tonight. This data will be sourced from a reliable meteorological database or forecasting service. The specific data source will be noted on the map or in accompanying documentation.