# SF Weather Services Research — Program Element 0604002SF

**Program element:** 0604002SF  
**Component:** U.S. Space Force  
**Appropriation:** 3620F — RDT&E, Space Force  
**Budget Activity:** 4 — Advanced Component Development & Prototypes  
**Vintage:** President's Budget PB2027  
**Canonical URL:** https://hitchintel.com/programs/0604002SF

## Summary

U.S. Space Force funding ramps 325% to a $3.6M request in FY2027, sustained across the five-year plan. In the FY2027 defense authorization, the House added 84% (to $6.6M); the Senate funded it in full; House appropriators funded it in full.

## Funding profile

| Fiscal Year | Estimate Type | Amount ($M) |
|---|---|---|
| FY2025 | Actual | 0.8 |
| FY2026 | Enacted | 0.8 |
| FY2027 | Request | 3.6 |
| FY2028 | Outyear | 3.6 |
| FY2029 | Outyear | 3.7 |
| FY2030 | Outyear | 3.6 |
| FY2031 | Outyear | 3.8 |

> Estimate types are not summed — the profile mixes actuals, enacted law, the request, and outyear projections.

## Congressional marks (FY2027)

| Stage | Marked ($M) | Change ($M) |
|---|---|---|
| Request | 3.6 | — |
| House NDAA (HASC) | 6.6 | +3.0 |
| Senate NDAA (SASC) | 3.6 | +0.0 |
| House Approps (HAC-D) | 3.6 | +0.0 |

> FY2027 NDAA authorization marks, as of 2026-07-27. Not appropriations or final law.

## Projects (1)

| Project | Title | FY2025 actual | FY2026 enacted | FY2027 request | Move |
|---|---|---|---|---|---|
| 645353 | SF Weather Services Research | 0.8 | 0.8 | 3.6 | +325% |

> Projects are the summable leaves: the program element total is their sum, never added to it.

### Project 645353 — SF Weather Services Research

The program office is executing the Space Weather Analysis and Forecast System (SWAFS) (Project 643353) for Guardians across the Weather mission area. As a result, the USSF will improve readiness and operational reach of existing the force structure. This budget activity funds the development necessary to evaluate integrated technologies and models for future operationalization into segments of the Space Force Weather Services (SFWS) in support of three lines of effort. To improve readiness for a more lethal force, SFWS provides timely, accurate, resilient and relevant environmental information, to include space and terrestrial weather, for global battlespace situational awareness for Air Force (AF), Army, Special Operations Forces (SOF), Space Force (USSF), combatant commands, the Intelligence Community (IC), and other government agencies. SFWS capabilities at home station and deployed provide critical environmental information in support of decision makers to gain the asymmetric advantage during the full spectrum of air and space combat operations. SFWS development enhances the lethality, effectiveness, and survivability of AF & SF weapon systems and precision munitions by modernizing capability and seeking the military advantage to accurately predict friendly and foe environmental impacts to optimize mission execution and planning, targeting, weaponeering, battle damage assessment, and space systems operations. To strengthen alliances and partnerships, SFWS development efforts integrate Department of War (DoW), government agency, commercial, and international partner environmental data with SFWS information system equipment for processing, storing, exploiting, and disseminating all-domain weather information for analysis, forecasting, mission integration, and greater interoperability. To ensure greater performance and affordability for the AF and SF, SFWS systems are being modernized through improvements to architecture and system efficiency, cybersecurity, joint all-domain command and control (JADC2) and sensing grid integration, migration to cloud computing, and expanding agile software development practices. SFWS aligns activities under four capability areas: Weather Data Collection, Weather Data Analysis and Dissemination, Weather Forecasting, and Product Tailoring/Warfighter Applications (PTWA).

| Activity (R-2A) | FY2025 | FY2026 | FY2027 |
|---|---|---|---|
| Space Weather Analysis and Forecast System (SWAFS) Radio Frequency Ionospheric Scintillation Application (RISA version 2) software upgrade | 0.8 | 0.8 | 3.6 |

> R-2A activities carry the prior, current and budget year only — no five-year plan. Coverage is partial, so count them, never total them.

## Where the FY2027 request goes

| Category | Share | $M |
|---|---|---|
| Other / unspecified | 100% | 3.6 |

> R-3 exhibit contract funding, not USAspending obligations.

## Mission & acquisition strategy

The program office is executing the Space Weather Analysis and Forecast System (SWAFS) (Project 643353) for Guardians across the Weather mission area. As a result, the USSF will improve readiness and operational reach of existing the force structure. This budget activity funds the development necessary to evaluate integrated technologies and models for future operationalization into segments of the Space Force Weather Services (SFWS) in support of three lines of effort.

SWAFS will use individual Federal Acquisition Regulation (FAR) based and rapid acquisition contracting methods, as well as leverage AFRL for validation work (Technology Readiness Level (TRL) 6 and below) to develop AoA, design solutions, and prototype code.

## Related program elements

- [1206855SF — Evolved Strategic SATCOM (ESS)](https://hitchintel.com/programs/1206855SF) (Space Force)
- [1206853SF — Next Generation Launch System Investment](https://hitchintel.com/programs/1206853SF) (Space Force)
- [0603827A — Soldier Systems - Advanced Development](https://hitchintel.com/programs/0603827A) (Army)
- [0603677F — Advanced Component Development and Prototypes (ACD&P)](https://hitchintel.com/programs/0603677F) (Air Force)

## Source & machine access

- **Source:** FY2027 Department of the Air Force RDT&E Budget Justification, Exhibits R-2/R-3, PE 0604002SF (PB PB2027); FY2027 NDAA committee marks (as of 2026-07-27).
- **MCP:** `mcp.hitchintel.com` — `budget_get_program_element(pe="0604002SF")`.

*HitchAI is an independent intelligence service, not affiliated with the U.S. Department of Defense. Budget figures are requests/estimates, not obligations.*