RDT&E Program Element · President's Budget PB2027

SF Weather Services Research

PE 0604002SF·U.S. Space Force·Approp. 3620F — RDT&E·BA4 — Advanced Component Development & Prototypes
FY2027 Request
$3.6M
◆ Scaling +325%
HitchAI read

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.

FY2027 Request
$3.6M
▲ 325% vs FY2026
FY2026 Enacted
$0.8M
▲ 0.8% vs FY2025
FY2025 Actual
$0.8M
Prior year

For fiscal year 2027, the U.S. Space Force is requesting $3.6M for SF Weather Services Research under RDT&E program element 0604002SF, up 325% over FY2026.

Funding trajectory

Funding profile, FY2025–FY2031

Prior years are actuals, the budget year is the request, and the outyears are the FYDP plan. Estimate types are colored and never summed into one figure.

00.8FY25ACTUAL0.8FY26ENACTED3.6FY27REQUEST3.6FY283.7FY293.6FY303.8FY31
Actual Enacted Request Outyear (FYDP)
Fiscal YearEstimate TypeAmount ($M)
FY2025Actual0.8
FY2026Enacted0.8
FY2027Request3.6
FY2028Outyear3.6
FY2029Outyear3.7
FY2030Outyear3.6
FY2031Outyear3.8
Where it sits

Acquisition lifecycle

This program is funded in RDT&E Budget Activity 4 — Advanced Component Development & Prototypes.

Complete
Research
BA 1–2
Complete
Advanced Technology
BA 3
Current
Prototyping
BA 4
Later
Development & Fielding
BA 5–7
Inside the program element

1 project rolls up into PE 0604002SF

Projects are the summable leaves — the PE total is their sum, never added to it. Program elements and projects carry the full five-year plan; activities stop at the budget year. This PE moves 325% overall, which can hide much larger swings below.

Project 645353

SF Weather Services Research

$3.6MFY2027 request ▲ 325%
FY2025 actual$0.8M
FY2026 enacted$0.8M
FY2027 request$3.6M
Product Development

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).

Accomplishments / planned programs (R-2A) — prior, current and budget year only
Space Weather Analysis and Forecast System (SWAFS) Radio Frequency Ionospheric Scintillation Application (RISA version 2) software upgrade▲ 325%
FY2025 actual$0.8M
FY2026 enacted$0.8M
FY2027 request$3.6M

FY2027 planned work Begin modeling effort addressing the space weather impacts on Hi-Latitude communications, to include forecasting. Johns Hopkins University/Advanced Physics Laboratory is converting ionospheric model from Fortran to Python computer code. Boston College is improving ionospheric and solar indices models.

FY2026 to FY2027 change FY 2027 funding increased due to new modeling efforts.

FY2026 plans — current year Peraton to continue development of upgrade to the Space Weather High Frequency Communication Propagation Model, in conjunction with the AFRL (Air Force Research Lab) development of the Scintillation Nowcast Forecast Model Update, that identifies space environment impacts to DoW and Intelligence Community communications to and through space, and additional Electromagnetic spectrum interference hazard assessment tools (EMI-HAS). Rapidly respond to implement system resiliency and situational awareness necessary to operate in the contested space domain. Activities may include, but are not limited to program office support, studies, technical analysis, experimentation, risk reduction…

Congressional action

Congressional marks

Committee marks on the FY2027 request. Adds and cuts are reconciled in conference before they become law.

RequestPresident's Budget
$3.6M
House NDAA (HASC)HASC
$6.6M +$3.0M · +84%
Senate NDAA (SASC)SASC
$3.6M full · +$0
House Approps (HAC-D)HAC_D
$3.6M full · +$0
▲ $3.0M chamber gap — unresolved as of 2026-07-27. These are FY2027 authorization marks (NDAA); appropriations and the conference agreement may differ.
Who's building it

Where the FY2027 request goes

Performers named in the R-3 exhibit, resolved into industry, government-lab, and unspecified shares. Budget-justification contract funding, not obligations.

Where FY2027 funding flowsShare$M
Other / unspecified100%3.6
FY2027 request100%3.6
Program detail

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.

Project 645353 — SF Weather Services Research
  • Product Development
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Provenance

Cite this page

Sources
FY2027 Department of the Air Force RDT&E Budget Justification · Exhibits R-2 / R-3 · PE 0604002SF (President's Budget PB2027) — and FY2027 NDAA committee marks, as tracked 2026-07-27.
Suggested citation
HitchAI, "SF Weather Services Research (PE 0604002SF)," federal budget intelligence, PB2027 vintage. hitchintel.com/programs/0604002SF
Machine access
Markdown twin /programs/0604002SF.md · MCP mcp.hitchintel.combudget_get_program_element, budget_get_cong_marks