Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2014
Severe Thunderstorm Warning 32, NWS Pittsburgh, PA
NWS Pittsburgh, PA issued this severe thunderstorm warning at May 27, 2014, 3:25 PM EDT for Westmoreland County, Pennsylvania. It was in force for 20 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
- May 27, 2014, 3:25 PM EDT (19:25 UTC)
- Expired
- May 27, 2014, 3:45 PM EDT
- In force
- 20 min
- Issued by
- NWS Pittsburgh, PA
- Area
- Storm-based polygon
County Westmoreland County, PA
The radar
The Pittsburgh radar (KPBZ), 68 km from the middle of the area, began a volume at 19:26 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.
The nearest sounding before it
Pittsburgh, PA (KAGC), launched 12:00Z, 7.4 hours before the alert went out and 55 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 148 J/kg
- Mixed-layer CIN
- -92 J/kg
- Mixed-layer LCL
- 1224 m above ground
- 0-6 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- 83 m²/s²
- 0-3 km storm-relative helicity
- 61 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.3
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 May 27, 2:09 PM EDT, 1 hour 16 minutes earlier.
Area forecast discussion, May 27, 2:09 PM EDT, 1 hour 16 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE PITTSBURGH PA 209 PM EDT TUE MAY 27 2014 .SYNOPSIS... A SLOW MOVING COLD FRONT WITH SEVERAL UPPER LEVEL DISTURBANCES WILL BRING SHOWERS AND THUNDERSTORMS INTO MIDWEEK. && .NEAR TERM /THROUGH WEDNESDAY/... AREA OF SHOWERS AND STORMS WITH SHORTWAVE HAS ALREADY BEGUN TO SHIFT EAST OF THE RIDGES WHERE BETTER INSTABILITY WILL BE AVAILABLE. PULSE STORMS REACHING MINIMAL SEVERE NEXT 2 TO 3 HOURS AND BEST CHANCE FOR SEVERE IS ACROSS THE HIGHER SOUTHEAST RIDGES. EXPECT SHOWERS TO DIMINISH QUICKLY THIS EVENING AS SHORTWAVE EXITS. LOWERED POPS BELOW LIKELY FOR TONIGHT AND EVEN THIS MAY NOT BE LOW ENOUGH AS WILL NEED TO WAIT FOR NEXT SHORTWAVE ALONG FRONT DRAPED ACROSS THE GREAT LAKES. BACK TO LIKELY POPS WITH THE FRONT AND NEXT SHORTWAVE WEDNESDAY. TEMPERATURES A CLOSE BEND OF MODEL MOS. && .SHORT TERM /WEDNESDAY NIGHT THROUGH THURSDAY/... FRONT SAGS SOUTH WEDNESDAY NIGHT AND THURSDAY WITH HIGHEST POPS ACROSS THE SOUTHERN RIDGES AND ENDING BY LATE DAY THURSDAY. TEMPERATURES WILL COOL BACK TOWARD SEASONAL AVERAGES. && .LONG TERM /THURSDAY NIGHT THROUGH TUESDAY/... RIDGE OF HIGH PRESSURE WILL DOMINATE THE WEEKEND WITH SEASONAL TEMPERATURES. THE NEXT SYSTEM APPROACHES AND INCREASES THE CHANCE OF RAIN EARLY NEXT WEEK. LITTLE DIFFERENCES BETWEEN THE ECMWF AND GFS HAVE LED TO NO HIGHER THAN CHANCE POPS IN THE FORECAST FOR MON/TUE. && .AVIATION /18Z TUESDAY THROUGH SUNDAY/... STILL A WINDOW FOR BRIEF MVFR/IFR FOR PORTS SOUTH OF PITTSBURGH AS SHORTWAVE WITH BANDS OF SHOWERS AND STORMS WORK SOUTH AND EAST. SHOWERS WILL END TOWARD SUNSET WITH MVFR FOG AND STRATUS EXPECTED BEFORE DAYBREAK. .OUTLOOK.../WEDNESDAY THROUGH SUNDAY/... A CHANCE FOR SHOWERS AND THUNDERSTORMS REMAINS IN THE FORECAST INTO THURSDAY...BRINGING A CHANCE FOR RESTRICTIONS ESPECIALLY SOUTHERN PORTS. VFR CONDITIONS ARE EXPECTED THURSDAY NIGHT THROUGH SUNDAY. && .PBZ WATCHES/WARNINGS/ADVISORIES... MD...NONE. OH...NONE. PA...NONE. WV...NONE. &&
Hazardous weather outlook, May 27, 9:13 AM EDT, 6 hours 12 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE PITTSBURGH PA 913 AM EDT TUE MAY 27 2014 MDZ001-OHZ039>041-048>050-057>059-068-069-PAZ007>009-013>016-020>023- 029-031-073>076-WVZ001>004-012-021>023-041-281315- GARRETT-TUSCARAWAS-CARROLL-COLUMBIANA-COSHOCTON-HARRISON- JEFFERSON OH-MUSKINGUM-GUERNSEY-BELMONT-NOBLE-MONROE-MERCER-VENANGO- FOREST-LAWRENCE-BUTLER-CLARION-JEFFERSON PA-BEAVER-ALLEGHENY- ARMSTRONG-INDIANA-WASHINGTON-GREENE-WESTMORELAND-WESTMORELAND RIDGES- FAYETTE-FAYETTE RIDGES-HANCOCK-BROOKE-OHIO-MARSHALL-WETZEL-MARION- MONONGALIA-PRESTON-TUCKER- 913 AM EDT TUE MAY 27 2014 THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN MARYLAND...EAST CENTRAL OHIO...NORTHWEST PENNSYLVANIA...SOUTHWEST PENNSYLVANIA...WEST CENTRAL PENNSYLVANIA...NORTHERN WEST VIRGINIA AND NORTHERN PANHANDLE OF WEST VIRGINIA. .DAY ONE...TODAY AND TONIGHT. HAZARDOUS WEATHER IS NOT EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.
In the hours before
Special weather statement, May 27, 2:14 PM EDT, 1 hour 11 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE PITTSBURGH PA 214 PM EDT TUE MAY 27 2014 PAZ021-029-271845- ALLEGHENY PA-WASHINGTON PA- 214 PM EDT TUE MAY 27 2014 ...A STRONG THUNDERSTORM WILL AFFECT NORTH CENTRAL WASHINGTON AND WEST CENTRAL ALLEGHENY COUNTIES... AT 209 PM EDT...A STRONG THUNDERSTORM WAS LOCATED 4 MILES NORTH OF AVELLA...MOVING EAST AT 30 MPH. WIND GUSTS TO 50 MPH ARE POSSIBLE WITH THIS STORM. THIS COULD BRING DOWN SMALL TREE BRANCHES. LOCATIONS IMPACTED INCLUDE... AVELLA... BURGETTSTOWN... MCDONALD... CANONSBURG... OAKDALE... PLEASE REPORT SIGNIFICANT WEATHER BY POSTING TO THE NWS PITTSBURGH FACEBOOK PAGE OR BY USING TWITTER @NWSPITTSBURGH. LAT...LON 4022 8016 4028 8052 4039 8052 4042 8017 98
Special weather statement, May 27, 3:06 PM EDT, 19 minutes before
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</html>Local storm report, May 27, 3:23 PM EDT, 2 minutes before
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</html>Local storm report, May 27, 3:25 PM EDT, 0 minutes before
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</html>The office that day
Everything else NWS Pittsburgh, PA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 27, 12:56 PM EDT | Severe Thunderstorm Warning | PBZ | Greene | 49 min |
| May 27, 1:27 PM EDT | Special Weather Statement | PBZ | Washington | 18 min |
| May 27, 1:59 PM EDT | Special Weather Statement | PBZ | Beaver | 16 min |
| May 27, 2:07 PM EDT | Special Weather Statement | PBZ | Fayette | 23 min |
| May 27, 2:08 PM EDT | Special Weather Statement | PBZ | Indiana | 22 min |
| May 27, 2:14 PM EDT | Special Weather Statement | PBZ | Washington | 31 min |
| May 27, 3:08 PM EDT | Special Weather Statement | PBZ | Westmoreland | 37 min |
| May 27, 3:34 PM EDT | Special Weather Statement | PBZ | Fayette | 41 min |
| May 27, 3:47 PM EDT | Special Weather Statement | PBZ | Westmoreland | 28 min |
| May 27, 3:58 PM EDT | Areal Flood Advisory | PBZ | Westmoreland | 3 hr |
| May 27, 4:27 PM EDT | Special Weather Statement | PBZ | Greene | 33 min |
| May 27, 4:39 PM EDT | Areal Flood Warning | PBZ | Westmoreland | 3 hr |
| May 27, 6:59 PM EDT | Special Weather Statement | PBZ | Allegheny | 31 min |
| May 27, 7:59 PM EDT | Special Weather Statement | PBZ | Allegheny | 46 min |
| May 27, 1:09 PM EDT | Special Weather Statement | PBZ | Carroll | 21 min |
| May 27, 1:30 PM EDT | Severe Thunderstorm Warning | PBZ | Carroll, Columbiana, Jefferson | 30 min |
| May 27, 7:01 PM EDT | Special Weather Statement | PBZ | Guernsey | 29 min |
| May 27, 7:05 PM EDT | Areal Flood Advisory | PBZ | Muskingum | 4 hr |
| May 27, 4:54 AM EDT | Special Weather Statement | PBZ | Tucker | 51 min |
| May 27, 1:16 PM EDT | Special Weather Statement | PBZ | Wetzel | 14 min |
| May 27, 5:41 PM EDT | Special Weather Statement | PBZ | Preston | 34 min |
Nearby
Severe Thunderstorm Warnings in Pennsylvania, 2014Every severe thunderstorm warning in 2014
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.