Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 40, NWS Pittsburgh, PA

May 19, 2000Greene County, Pennsylvania

NWS Pittsburgh, PA issued this severe thunderstorm warning at May 19, 2000, 2:36 AM EDT for Greene County, Pennsylvania. It was in force for 64 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued: May 19, 2000, 2:36 AM EDT (06:36 UTC)
Expired: May 19, 2000, 3:40 AM EDT
In force: 64 min
Issued by: NWS Pittsburgh, PA
Area: Whole counties

County Greene County, PA

What was reported inside it

Time	Report	Where	Remark
May 19, 2:50 AM EDT	Hail 0.75	Graysville, PA

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The nearest sounding before it

Pittsburgh, PA (KPIT), launched 00:00Z, 6.6 hours before the alert went out and 63 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 18 J/kg
Mixed-layer CIN: -140 J/kg
Mixed-layer LCL: 2043 m above ground
0-6 km bulk shear: 57 kt
0-1 km storm-relative helicity: 175 m²/s²
0-3 km storm-relative helicity: 188 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

752 
WUUS51 KPBZ 190637
SVRPIT
PAC059-190730-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PITTSBURGH PA
236 AM EDT FRI MAY 19 2000

THE NATIONAL WEATHER SERVICE IN PITTSBURGH HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  GREENE COUNTY IN PENNSYLVANIA

* UNTIL 340 AM EDT

* AT 236 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 14 MILES WEST OF WAYNESBURG...MOVING EAST AT 50
  MPH.

* SOME LOCATIONS THAT WILL BE AFFECTED BY THIS STORM INCLUDE...
  WAYNESBURG

<<CALL TO ACTION>>LARGE HAIL...DAMAGING WINDS...AND HEAVY RAINFALL
ARE LIKELY WITH THIS STORM. TAKE COVER IN A STURDY BUILDING UNTIL THE
STORM HAS PASSED.

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 18, 11:52 PM EDT, 2 hours 44 minutes earlier.

Area forecast discussion, May 18, 11:52 PM EDT, 2 hours 44 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PITTSBURGH PA
1152 PM EDT THU MAY 18 2000

UPDATED FOR SVR WATCH

.PBZ...
MD...NONE.
OH...NONE.
PA...FLASH FLOOD WATCH UNTIL 800 AM EDT FRIDAY FOR ZONES
PAZ007>009...PAZ013>016...PAZ022.

PA...SEVERE THUNDERSTORM WATCH UNTIL 500 AM EDT FRIDAY FOR ZONES
PAZ007>009...PAZ013>016...PAZ020>030.

WV...NONE.

In the hours before

Special weather statement, May 18, 10:51 PM EDT, 3 hours 45 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PITTSBURGH PA
1051 PM EDT THU MAY 18 2000

OHZ041-PAZ007-013-190351-
COLUMBIANA OH-LAWRENCE PA-MERCER PA-
1051 PM EDT THU MAY 18 2000

...THUNDERSTORMS WITH HEAVY RAINS GUSTY WINDS AND HAIL...
THUNDERSTORMS WITH STRONG GUSTY WINDS...TORRENTIAL RAINS AND HAIL
WILL BE MOVING THROUGH COLUMBIANA...LAWRENCE...AND MERCER COUNTIES
BEFORE MIDNIGHT. THESE STORMS WILL ALSO PRODUCE FREQUENT LIGHTNING.

Special weather statement, May 18, 11:22 PM EDT, 3 hours 14 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PITTSBURGH PA
1122 PM EDT THU MAY 18 2000

PAZ008-014-020-190421-
BEAVER PA-BUTLER PA-VENANGO PA-
1122 PM EDT THU MAY 18 2000

...THUNDERSTORMS WITH HEAVY RAINS GUSTY WINDS AND HAIL...
THUNDERSTORMS WITH STRONG GUSTY WINDS...TORRENTIAL RAINS AND HAIL
WILL BE MOVING THROUGH BUTLER...VENANGO AND BEAVER COUNTIES THROUGH
1230 AM. THESE STORMS WILL ALSO PRODUCE FREQUENT LIGHTNING.

Special weather statement, May 19, 2:05 AM EDT, 31 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PITTSBURGH PA
205 AM EDT FRI MAY 19 2000

OHZ059-069-WVZ003-004-012-190700-
BELMONT OH-MARSHALL WV-MONROE OH-OHIO WV-WETZEL WV-
205 AM EDT FRI MAY 19 2000

...THUNDERSTORMS WITH HEAVY RAIN AND FREQUENT LIGHTNING...
THUNDERSTORMS WITH HEAVY RAIN AND FREQUENT LIGHTNING WILL BE MOVING
ACROSS MONROE...BELMONT...OHIO...MARSHALL AND WETZEL COUNTIES
THROUGH 300 AM. THESE STORMS WILL PRODUCE PONDING OF WATER ON
ROADWAYS AND IN LOW LYING AREAS.  WINDS COULD ALSO GUST TO AROUND 40
MPH AND SMALL HAIL IS POSSIBLE.

The office that day

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

Issued	Product	Office	Counties	Lasted
May 18, 11:05 PM EDT	Severe Thunderstorm Warning	PBZ	Lawrence	65 min
May 18, 11:37 PM EDT	Severe Thunderstorm Warning	PBZ	Butler	63 min
May 18, 11:40 PM EDT	Severe Thunderstorm Warning	PBZ	Clarion	60 min
May 19, 12:06 AM EDT	Severe Thunderstorm Warning	PBZ	Jefferson	64 min
May 19, 12:19 AM EDT	Severe Thunderstorm Warning	PBZ	Armstrong	61 min
May 19, 6:31 PM EDT	Severe Thunderstorm Warning	PBZ	Washington	49 min

Nearby

Severe Thunderstorm Warnings in Pennsylvania, 2000 Every severe thunderstorm warning in 2000

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.