Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 1, NWS Pittsburgh, PA

February 15, 2018Fayette County, Pennsylvania

NWS Pittsburgh, PA issued this severe thunderstorm warning at Feb 15, 2018, 6:48 PM EST for Fayette County, Pennsylvania. It was in force for 27 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Feb 15, 2018, 6:48 PM EST (23:48 UTC)
Expired: Feb 15, 2018, 7:15 PM EST
In force: 27 min
Issued by: NWS Pittsburgh, PA
Area: Storm-based polygon
Tornado: Possible
Hail: 0.75 in
Wind: 60.0 mph

County Fayette County, PA

The radar

The Pittsburgh radar (KPBZ), 84 km from the middle of the area, began a volume at 23:50 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Pittsburgh, PA wrote its last area forecast discussion before this severe thunderstorm warning went out at Feb 15, 5:44 PM EST, 1 hour 4 minutes earlier.

Area forecast discussion, Feb 15, 5:44 PM EST, 1 hour 4 minutes before

<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</head>
<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>

Hazardous weather outlook, Feb 15, 2:52 PM EST, 3 hours 56 minutes before

Hazardous Weather Outlook
National Weather Service Pittsburgh PA
252 PM EST Thu Feb 15 2018

MDZ001-OHZ039>041-048>050-057>059-068-069-PAZ013-014-020>023-029-031-
073>076-WVZ001>004-012-021-509>514-161200-
Garrett-Tuscarawas-Carroll-Columbiana-Coshocton-Harrison-Jefferson-
Muskingum-Guernsey-Belmont-Noble-Monroe-Lawrence-Butler-Beaver-
Allegheny-Armstrong-Indiana-Washington-Greene-Westmoreland-
Westmoreland Ridges-Fayette-Fayette Ridges-Hancock-Brooke-Ohio-
Marshall-Wetzel-Marion-Monongalia-
Ridges of Eastern Monongalia and Northwestern Preston-Preston-
Eastern Preston-Western Tucker-Eastern Tucker-
252 PM EST Thu Feb 15 2018

...FLOOD WATCH IN EFFECT FROM 6 PM EST THIS EVENING THROUGH FRIDAY
AFTERNOON...

This Hazardous Weather Outlook is for western Maryland, east
central Ohio, southwest Pennsylvania, west central Pennsylvania,
western Pennsylvania, northern West Virginia and northern panhandle
of West Virginia.

.DAY ONE...This Afternoon and Tonight.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Flood Watch.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Flood Watch.

.SPOTTER INFORMATION STATEMENT...

Weather spotters are encouraged to report significant weather
 conditions according to Standard Operating Procedures.

PAZ007>009-015-016-161200-
Mercer-Venango-Forest-Clarion-Jefferson-
252 PM EST Thu Feb 15 2018

This Hazardous Weather Outlook is for northwest Pennsylvania and
west central Pennsylvania.

.DAY ONE...This Afternoon and Tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

There is a low probability for widespread hazardous weather.

.SPOTTER INFORMATION STATEMENT...

Weather spotters are encouraged to report significant weather
 conditions according to Standard Operating Procedures.

In the hours before

Special weather statement, Feb 15, 6:09 PM EST, 39 minutes before

Special Weather Statement
National Weather Service Pittsburgh PA
609 PM EST THU FEB 15 2018

PAZ029-031-073>076-160000-
Fayette Ridges-Westmoreland
Ridges-Greene-Westmoreland-Washington-Fayette-
609 PM EST THU FEB 15 2018

...A LINE OF STRONG THUNDERSTORMS CAPABLE OF PRODUCING GUSTY WIND AND
HEAVY RAIN WILL AFFECT SOUTHERN WASHINGTON...SOUTHWESTERN
WESTMORELAND...NORTHERN GREENE AND FAYETTE COUNTIES...

At 608 PM EST, radar indicated a line of showers located along a
line extending from near East Washington to 6 miles south of
Washington to 10 miles east of Valley Grove. Movement was east at 55
mph.

Wind gusts up to 45 mph are possible with these storms.

Locations impacted include...
Uniontown...                      Connellsville...
Waynesburg...                     Monessen...
California...                     Donora...
Scottdale...                      Charleroi...
Masontown...                      Bentleyville...
Brownsville...                    Fredericktown-Millsboro...

This includes the following highways...
  Interstate 70 in Pennsylvania between mile markers 23 and 46.
  Interstate 79 in Pennsylvania between mile markers 14 and 21.

Torrential rainfall also is occurring with these storms and may cause
localized flooding. Do not drive your vehicle through flooded
roadways.

LAT...LON 4010 7934 4000 7942 3978 7970 3998 8049
      4007 8029 4020 8011
TIME...MOT...LOC 2308Z 274DEG 50KT 4013 8018 4007 8026 4003 8038

tax

The office that day

Everything else NWS Pittsburgh, PA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Feb 15, 11:46 AM EST	River Flood Watch	PBZ	Allegheny, Westmoreland	21 hr
Feb 15, 5:33 PM EST	Areal Flood Warning	PBZ	Allegheny, Fayette, Washington, Westmoreland	39 hr
Feb 15, 6:09 PM EST	Special Weather Statement	PBZ	Fayette	51 min
Feb 15, 11:46 AM EST	River Flood Watch	PBZ	Guernsey	17 hr
Feb 15, 11:46 AM EST	River Flood Watch	PBZ	Tuscarawas	17 hr
Feb 15, 5:38 PM EST	Areal Flood Warning	PBZ	Belmont, Coshocton, Guernsey, Harrison, Jefferson, Tuscarawas	27 hr
Feb 15, 11:46 AM EST	River Flood Watch	PBZ	Preston	21 hr

Nearby

Severe Thunderstorm Warnings in Pennsylvania, 2018 Every severe thunderstorm warning in 2018

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.