Allegheny County, Pennsylvania weather alerts

Nothing is in force for Allegheny County right now. Its warnings come from the National Weather Service and appear here within a minute of being issued; every one of the past year is below.

Warnings issued

1. Flood WarningSun, Sep 20, 1:17 PM EDT
2. Severe Thunderstorm WarningSun, Sep 13, 6:18 PM EDT
3. Flood WarningSat, Sep 12, 7:00 PM EDT
4. Flood WarningSat, Sep 12, 6:26 PM EDT
5. Flash Flood WarningSat, Sep 12, 3:55 PM EDT
6. Flash Flood WarningSat, Sep 12, 3:24 PM EDT
7. Severe Thunderstorm WarningSat, Sep 12, 3:01 PM EDT
8. Flash Flood WarningWed, Sep 9, 10:09 PM EDT
9. Severe Thunderstorm WarningWed, Sep 9, 7:21 PM EDT
10. Flash Flood WarningFri, Sep 4, 2:40 AM EDT
11. Severe Thunderstorm WarningThu, Sep 3, 8:44 PM EDT
12. Severe Thunderstorm WarningThu, Sep 3, 6:40 PM EDT
13. Flash Flood WarningThu, Sep 3, 6:38 PM EDT
14. Severe Thunderstorm WarningThu, Sep 3, 6:34 PM EDT
15. Severe Thunderstorm WarningThu, Sep 3, 6:21 PM EDT
16. Flash Flood WarningThu, Sep 3, 6:11 PM EDT
17. Severe Thunderstorm WarningThu, Sep 3, 6:09 PM EDT
18. Severe Thunderstorm WarningThu, Sep 3, 5:57 PM EDT
19. Severe Thunderstorm WarningThu, Sep 3, 5:47 PM EDT
20. Flash Flood WarningThu, Sep 3, 5:43 PM EDT
21. Severe Thunderstorm WarningThu, Sep 3, 5:07 PM EDT
22. Severe Thunderstorm WarningThu, Sep 3, 7:20 AM EDT
23. Severe Thunderstorm WarningWed, Sep 2, 9:09 PM EDT
24. Severe Thunderstorm WarningThu, Aug 27, 7:46 PM EDT
25. Severe Thunderstorm WarningSat, Aug 22, 5:43 PM EDT
26. Flash Flood WarningSat, Aug 22, 5:28 PM EDT
27. Severe Thunderstorm WarningSat, Aug 22, 5:19 PM EDT
28. Severe Thunderstorm WarningSat, Aug 22, 4:33 PM EDT
29. Flood WarningThu, Aug 20, 1:51 PM EDT
30. Flood WarningThu, Aug 20, 12:51 PM EDT
31. Flash Flood WarningThu, Aug 20, 10:05 AM EDT
32. Severe Thunderstorm WarningSun, Aug 16, 3:41 PM EDT
33. Severe Thunderstorm WarningSun, Aug 16, 3:05 PM EDT
34. Flash Flood WarningMon, Aug 10, 12:42 PM EDT
35. Severe Thunderstorm WarningMon, Aug 10, 12:06 PM EDT
36. Flash Flood WarningMon, Aug 10, 11:58 AM EDT
37. Severe Thunderstorm WarningFri, Aug 7, 7:15 PM EDT
38. Flash Flood WarningFri, Aug 7, 7:08 PM EDT
39. Severe Thunderstorm WarningFri, Aug 7, 6:54 PM EDT
40. Flood WarningFri, Aug 7, 5:58 PM EDT
41. Flash Flood WarningFri, Aug 7, 4:29 PM EDT
42. Flash Flood WarningFri, Aug 7, 4:03 PM EDT
43. Flash Flood WarningFri, Aug 7, 11:50 AM EDT
44. Flash Flood WarningWed, Aug 5, 6:53 PM EDT
45. Tornado WarningSun, Aug 2, 5:40 PM EDT
46. Severe Thunderstorm WarningSun, Aug 2, 5:27 PM EDT
47. Flash Flood WarningSun, Aug 2, 2:48 PM EDT
48. Severe Thunderstorm WarningTue, Jul 21, 1:05 PM EDT
49. Flash Flood WarningSat, Jul 18, 7:42 PM EDT
50. Severe Thunderstorm WarningSat, Jul 18, 7:19 PM EDT
51. Severe Thunderstorm WarningSat, Jul 18, 6:38 PM EDT
52. Flash Flood WarningSat, Jul 18, 4:02 PM EDT
53. Flash Flood WarningSat, Jul 18, 3:19 PM EDT
54. Severe Thunderstorm WarningSat, Jul 18, 5:43 AM EDT
55. Flash Flood WarningFri, Jul 10, 5:27 PM EDT
56. Flash Flood WarningFri, Jul 10, 3:55 PM EDT
57. Flash Flood WarningFri, Jul 10, 3:19 PM EDT
58. Flash Flood WarningSun, Jul 5, 4:22 PM EDT
59. Severe Thunderstorm WarningSun, Jul 5, 4:16 PM EDT
60. Severe Thunderstorm WarningSat, Jul 4, 5:44 PM EDT

And 63 earlier warnings.

From the Iowa Environmental Mesonet’s archive of NWS watches, warnings and advisories (VTEC), by the county’s own code and the forecast zones inside it. Each links to the alert's own page, with its text, map, radar and sounding.

Every alert in Allegheny County since 1986

• Beaver CountyNone
• Butler CountyNone
• Washington CountyNone
• Westmoreland CountyNone

Warning

The hazard is happening or about to. Act now: a tornado warning means take shelter, a flash flood warning means move to higher ground.

Watch

Conditions favor the hazard. Nothing is happening yet; have a plan and be ready to act if a warning follows.

Advisory

A hazard that is less serious than a warning but can still cause trouble, such as dense fog, heat or light ice.

Statement

Information about weather that does not yet meet a warning: a strong storm, a hydrologic update, or a special weather statement.

Severity (extreme, severe, moderate, minor) is the rating the issuing office gives each product. More on the difference: tornado watch vs. tornado warning. Alerts come from the National Weather Service; follow its instructions and your local officials.

The alerts on this page as a feed, updated every minute, for a feed reader or an app that reads Atom or RSS, and as a calendar where each alert runs from when it takes effect to when it ends. A feed or a calendar is not a warning siren: for warnings, keep a weather radio or your phone's emergency alerts on.

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Alerts from the National Weather Service's public feed, read afresh every minute, and matched to counties and zones by their UGC codes. Warnings from outside the United States come from each country's own meteorological service. Follow the issuing office's instructions and your local officials.