Grid Threat Monitor
As of Nov 2, 11:18 PM EST, the overall U.S. grid threat level is Normal: No widespread outage drivers detected. 6,507 customers are without power, 16 outage-relevant weather alerts are active, geomagnetic activity is quiet, and CISA has issued 27 energy-sector ICS advisories in the past 30 days.
An independent summary of public data, not an official government alert. Follow local emergency officials during a crisis.
6,507 customers out
25 states reporting outages from 64 participating utilities
16 outage-relevant alerts
13 Wind Advisories, 3 Severe Thunderstorm Warnings
Geomagnetic: quiet (Kp 0.7)
No geomagnetic storm watches in the 3-day forecast
27 energy-sector ICS advisories (30 days)
Latest: Hitachi Energy CoreTec Product
⚡ Where the power is out
Live from DOE ODIN
| State | Customers out | % out | Status |
|---|---|---|---|
| Massachusetts | 2,544 | Minor | |
| Indiana | 996 | Minor | |
| Texas | 938 | Normal | |
| Colorado | 637 | Minor | |
| California | 351 | Normal | |
| Tennessee | 305 | Normal | |
| Arizona | 231 | Normal | |
| Minnesota | 105 | Normal | |
| Utah | 69 | Normal | |
| New Mexico | 61 | Normal |
🌪 Severe weather
Active NWS alerts that commonly cause outages: wind, tornadoes, tropical systems, ice, extreme heat and cold, fire weather
- Severe Thunderstorm WarningSevere
Comanche, TX; Eastland, TX; Erath, TX
Until Nov 2, 11:45 PM EST · NWS Fort Worth TX
- Severe Thunderstorm WarningSevere
Carter, OK; Johnston, OK; Marshall, OK; Murray, OK; Pontotoc, OK
Until Nov 2, 11:45 PM EST · NWS Norman OK
- Severe Thunderstorm WarningSevere
Garvin, OK; Murray, OK; Pontotoc, OK
Until Nov 2, 11:45 PM EST · NWS Norman OK
- Wind AdvisoryModerate
Mississippi
Until Nov 3, 4:00 PM EST · NWS Memphis TN
- Wind AdvisoryModerate
Clay; Greene; Craighead; Dunklin; Pemiscot
Until Nov 3, 4:00 PM EST · NWS Memphis TN
- Wind AdvisoryModerate
Stanley; Jones; Lyman
Until Nov 3, 1:00 PM EST · NWS Aberdeen SD
- Wind AdvisoryModerate
Corson; Dewey
Until Nov 3, 8:00 AM EST · NWS Aberdeen SD
- Wind AdvisoryModerate
Southern Foothills; Western Fall River; Eastern Fall River
Until Nov 3, 7:00 AM EST · NWS Rapid City SD
- Wind AdvisoryModerate
Rapid City; Custer Co Plains; Pennington Co Plains; Northern Oglala Lakota; Sturgis/Piedmont Foothills; Southern Meade Co Plains; Hermosa Foothills
Until Nov 3, 7:00 AM EST · NWS Rapid City SD
- Wind AdvisoryModerate
Ziebach; Haakon; Northern Jackson; Mellette; Todd; Tripp; Southern Jackson
Until Nov 3, 8:00 AM EST · NWS Rapid City SD
+ 6 more active alerts
Source: National Weather Service
States with the most weather risk
- OklahomaSevere Thunderstorm Warning, Wind Advisory
- South DakotaWind Advisory
- TexasSevere Thunderstorm Warning, Wind Advisory
- ArkansasWind Advisory
- HawaiiWind Advisory
- MissouriWind Advisory
- New MexicoWind Advisory
☀ Space weather
Geomagnetic storms can induce currents that stress high-voltage transformers
Source: NOAA Space Weather Prediction Center. Learn more in Solar storms and the power grid.
🛡 Grid cyber advisories
Industrial control system (ICS) vulnerability advisories that list the Energy sector
Latest energy-sector ICS advisories (CISA)
- Hitachi Energy CoreTec ProductOctober 29, 2026
- Hitachi Energy TRO600 series productsOctober 29, 2026
- Mitsubishi Electric and Mitsubishi Electric Iconics Digital Solutions GENESIS, GENESIS64, ICONICS Suite, Hyper Historian, AnalytiX, MobileHMI, IoTWorX, MC Works64, GENESIS32 and BizVizOctober 27, 2026
- Siemens SIMATIC IPCsOctober 22, 2026 · Critical Manufacturing, Transportation Systems, Energy
- Siemens Industrial Edge App PublisherOctober 22, 2026 · Critical Manufacturing, Transportation Systems, Energy
- Siemens Software CenterOctober 22, 2026 · Critical Manufacturing, Transportation Systems, Energy
- Siemens Capital Embedded AR ClassicOctober 22, 2026 · Critical Manufacturing, Transportation Systems, Energy
- Siemens SENTRON 3NA COM FuseOctober 22, 2026 · Critical Manufacturing, Transportation Systems, Energy
- Siemens PSS(R)SINCALOctober 22, 2026 · Critical Manufacturing, Transportation Systems, Energy
- Siemens APOGEE, TALON and Desigo PXC/PXM ProductsOctober 22, 2026 · Critical Manufacturing, Transportation Systems, Energy
An advisory is a vendor vulnerability disclosure, not evidence of an attack. Utilities use these to patch equipment.
Grid security news
- Vicksburg outlines utility payment options after cyberattack...Vicksburg Post · Nov 2, 1:54 PM EST
- Low-skill pro-Russian hackers sabotage Western plants, water utilities — BloombergThe New Voice of Ukraine · Nov 2, 2:50 AM EST
- A four-step framework for utility cybersecurity spending on the carbon-neutral gridBioengineer.org · Oct 28, 1:48 AM EDT
- City of Vicksburg to resume utility payments Friday after cybersecurity incidentKTVE – myarklamiss.com – Your ArkLaMiss News Source · Oct 27, 4:28 PM EDT
Grid reliability news
NERC, ERCOT, PJM, grid emergencies and reliability warnings
- Turkish Power Barge Erol Bey Leaves Havana, Intensifying Cuba's Rolling BlackoutsCubaHeadlines · Nov 2, 11:03 PM EST
- "I love easy, delicious meals like this one." For tofu with crisp edges and custardy middles, give it just 15 minutes under the broiler. The technique is inspired by Nobu Matsuhisa’s miso-broiled black cod.Facebook · Nov 2, 3:10 PM EST
- Department of Energy emergency orders expose the dead end of our energy future under capitalismLiberation News · Nov 2, 1:21 PM EST
- PEG: Guidance held firm as utility investment and nuclear opportunities support growth amid PJM uncertaintyTradingView · Nov 2, 1:14 PM EST
- Exelon eyes $8B in energy storage, partly to address PJM supply crunchUtility Dive · Nov 2, 11:47 AM EST
- Despite record summer demand, solar, storage kept ERCOT prices lowInstitute for Energy Economics and Financial Analysis (IEEFA) · Nov 2, 10:12 AM EST
- ERCOT Interconnection Queue: Gas Up 85.5% in a Year Amid Texas Data Center BoomEIN News · Nov 2, 8:00 AM EST
- Tinubu defends power record as Atiku faults reforms, Obi pledges 10,000MWThe Guardian Nigeria News · Nov 1, 11:00 PM EST
How the threat level works
| Signal | Elevated | High | Severe |
|---|---|---|---|
| Outages | 50k+ out or a state at Moderate | 250k+ out or a state at Major (1%+) | 1M+ out or a state at Severe (5%+) |
| Weather | 15+ active warnings | Any hurricane/ice/extreme wind/blizzard warning, 5+ tornado warnings or 60+ warnings | 3+ high-impact warnings or 15+ tornado warnings |
| Space weather | G2 now or G3 forecast | G3 now or G4 forecast | G4–G5 now |
| Cyber | Routine vendor advisories never raise the level. It is raised manually only for a confirmed, attributed cyberattack affecting U.S. grid operations. | ||
Grid threat FAQ
Is the U.S. power grid down?
No single event takes down the entire U.S. grid. North America runs on several large interconnections (Eastern, Western and Texas/ERCOT) managed by many operators. Outages happen locally or regionally, and the Grid Threat Monitor shows where they are happening now and what may be driving them.
How is the Grid Threat level calculated?
We combine four public signals: customers without power (DOE ODIN), outage-relevant NWS alerts such as hurricane, ice storm, tornado and high wind warnings, NOAA's geomagnetic storm G-scale and 3-day forecast, and energy-sector CISA ICS advisories. The overall level equals the highest of the four. It describes current conditions and is not a prediction or an official government rating.
Can a solar storm cause a blackout?
Yes, rarely. In March 1989 a severe geomagnetic storm collapsed Hydro-Québec's grid in about 90 seconds and left millions without power for roughly nine hours. Grid operators now receive NOAA SWPC warnings and can take protective steps. G4–G5 (severe to extreme) storms are the main concern.
Has a cyberattack ever caused a blackout?
Yes, outside the U.S. Attacks on Ukrainian utilities in December 2015 cut power to about 225,000 customers, and a 2016 attack hit a Kyiv substation. No confirmed cyberattack has caused a U.S. blackout to date, but federal agencies have warned of state-sponsored intrusions into U.S. utility networks.
Cite this page
You may reuse our derived data under CC BY 4.0 with attribution. Underlying government data is public domain.
PowerOutageTracker.com. "Grid Threat Monitor." Accessed November 2, 2026. https://poweroutagetracker.com/grid-threats