Alert archive / West Virginia / Special Weather Statements in 2012

Special Weather Statement, NWS Pittsburgh, PA

May 7, 2012Marion County, Monongalia County, West Virginia

NWS Pittsburgh, PA issued this special weather statement at May 7, 2012, 4:53 PM EDT for Marion County, Monongalia County, West Virginia. It was in force for 37 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: May 7, 2012, 4:53 PM EDT (20:53 UTC)
Expired: May 7, 2012, 5:30 PM EDT
In force: 37 min
Issued by: NWS Pittsburgh, PA

Counties Marion County, WV, Monongalia County, WV

The radar

The Pittsburgh radar (KPBZ), 106 km from the middle of the area, began a volume at 20:54 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 (KPIT), launched 12:00Z, 8.9 hours before the alert went out and 94 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: 180 J/kg
Mixed-layer CIN: -45 J/kg
Mixed-layer LCL: 805 m above ground
0-6 km bulk shear: 27 kt
0-1 km storm-relative helicity: 83 m²/s²
0-3 km storm-relative helicity: 74 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

The text

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

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at May 7, 2:40 PM EDT, 2 hours 13 minutes earlier.

Area forecast discussion, May 7, 2:40 PM EDT, 2 hours 13 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PITTSBURGH PA
240 PM EDT MON MAY 7 2012

.SYNOPSIS...
LOW PRESSURE WILL MOVE ACROSS THE GREAT LAKES TUESDAY AND PUSH A
COLD FRONT SOUTH OF THE OHIO VALLEY LATER TUESDAY. THIS WILL BRING
SHOWERS AND A FEW THUNDERSTORMS LATER MONDAY THROUGH TUESDAY WITH
COOLER TEMPERATURES BY MID WEEK.

&&

.NEAR TERM /THROUGH TUESDAY/...
A WARM FRONT EXTENDS EAST WEST THIS EVENING ACROSS EASTERN OHIO
IN WESTERN PENNSYLVANIA NORTH OF PITTSBURGH. SHOWERS AND
SCATTERED THUNDERSTORMS WILL BE MOST LIKELY ACROSS THE I80 CORRIDOR'
NORTH OF THE WARM FRONT WITH MORE WIDELY SCATTERED SHOWERS IN THE
SOUTH. SOME STORMS COULD APPROACH SEVERE LIMITS DURING THE EVENING
HOURS. THESE SLOW MOVING STORM CAN ALSO PRODUCE HEAVY RAIN  WITH
AN INCH IN LESS THAN ONE HOUR POSSIBLE. IF THESE STORMS PERSIST
OVER THE SAME AREA FOR SEVERAL HOURS STREAM OR URBAN FLOODING
COULD RESULT. THE SHOWERS AND STORMS MAY BECOME MORE NUMEROUS
TOWARD DAYBREAK TUESDAY AS THE COLD FRONT WITH THE SYSTEM DRAWS
CLOSER. SHOWERS AND THUNDERSTORMS WILL CONTINUE INTO TUESDAY
UNTIL THE FRONT MOVES EAST OF THE DISTRICT.

&&

.SHORT TERM /TUESDAY NIGHT THROUGH THURSDAY/...
THE SLOW MOVING COLD FRONT WILL PUSH EAST OF THE DISTRICT BY
TUESDAY EVENING...BUT A GOOD UPPER TROF BEHIND THE FRONT WILL
BRING A CONTINUED CHANCE OF SHOWERS FOR TUESDAY NIGHT INTO
WEDNESDAY. LOW LEVEL MOISTURE WILL BE DIMINISHING TUESDAY
NIGHT INTO WEDNESDAY WHICH WILL REDUCE THE THREAT OF HEAVY
RAIN.

THE COLD FRONT FINALLY DOES KICK SOUTHEAST OF THE AREA BY
WEDNESDAY AS THE NORTHERN STREAM DIPS WELL SOUTH OF WHERE IT HAS
TAKEN RESIDENCE IN RECENT WEEKS. AS THIS OCCURS...UPPER TROUGHING
BECOMES CENTERED OVER THE CWA FROM WEDNESDAY THROUGH THURSDAY.
WITH COLDER AIR ALOFT ENTERING THE PICTURE. SOME SHOWERS ARE
POSSIBLE ON WEDNESDAY AFTERNOON WITH HEATING AND THE COLD POOL
ALOFT. COOLER DRIER AIR WILL FEED INTO THE DISTRICT WITH HIGH
PRESSURE FOR THURSDAY.

&&

.LONG TERM /THURSDAY NIGHT THROUGH MONDAY/...
HIGH PRESSURE WILL THEN MOVE INTO THE OHIO VALLEY KEEPING THE
WEATHER DRY THROUGH SATURDAY.

A COLD FRONT IS PROGGED TO BRING SCATTERED SHOWERS SUNDAY.

TEMPERATURES ARE FORECAST TO BE A FEW DEGREES BELOW NORMAL THURSDAY
AND FRIDAY...WARMING TO SLIGHTLY ABOVE NORMAL FOR THE WEEKEND.

&&

.AVIATION /19Z MONDAY THROUGH SATURDAY/...
A WARM FRONT WILL CONTINUE TO PUSH INTO NORTHERN PA THIS AFTERNOON.
AS SURFACE HEATING CONTINUES THIS AFTERNOON...WIDELY SCATTERED
COVERAGE OF THUNDERSTORMS WILL CONTINUE TO INCREASE ACROSS THE WARM
SECTOR. INCLUDED TEMPO GROUPS FOR THUNDERSTORMS FOR MOST TERMINAL
LOCATIONS THIS AFTERNOON...WITH IFR RESTRICTIONS POSSIBLE IN HEAVY
RAIN.

PREVAILING CONDITIONS WILL LOWER TO MVFR AND SHOWERS SHOULD BECOME
MORE NUMEROUS LATER TONIGHT INTO TUESDAY AS A COLD FRONT APPROACHES
FROM THE WEST. IFR RESTRICTIONS ARE ALSO POSSIBLE IN SCATTERED
EMBEDDED THUNDERSTORMS AND HEAVY RAIN.

.OUTLOOK...TUESDAY NIGHT THROUGH FRIDAY...
MVFR AND AREAS OF IFR RESTRICTIONS IN PRECIPITATION AND FOG WILL
LIKELY PERSIST THROUGH WEDNESDAY AS THE COLD FRONT SLOWLY MOVES EAST
THROUGH THE REGION AND AN UPPER TROUGH SLOWLY CROSSES THE OHIO
VALLEY.

CONDITIONS SHOULD IMPROVE TO VFR FOR THURSDAY AND FRIDAY AS SURFACE
HIGH PRESSURE WITH DRIER AIR MOVES IN FROM THE WEST.

&&

.PBZ WATCHES/WARNINGS/ADVISORIES...
MD...NONE.
OH...NONE.
PA...NONE.
WV...NONE.

&&

Hazardous weather outlook, May 7, 12:35 PM EDT, 4 hours 18 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE PITTSBURGH PA
1235 PM EDT MON MAY 7 2012

OHZ039>041-048>050-057>059-068-069-PAZ007-008-013>015-020>022-029-
031-073-075-WVZ001>004-012-021-022-081645-
TUSCARAWAS-CARROLL-COLUMBIANA-COSHOCTON-HARRISON-JEFFERSON OH-
MUSKINGUM-GUERNSEY-BELMONT-NOBLE-MONROE-MERCER-VENANGO-LAWRENCE-
BUTLER-CLARION-BEAVER-ALLEGHENY-ARMSTRONG-WASHINGTON-GREENE-
WESTMORELAND-FAYETTE-HANCOCK-BROOKE-OHIO-MARSHALL-WETZEL-MARION-
MONONGALIA-
1235 PM EDT MON MAY 7 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR EAST CENTRAL OHIO...NORTHWEST
PENNSYLVANIA...SOUTHWEST PENNSYLVANIA...WEST CENTRAL
PENNSYLVANIA...NORTHERN WEST VIRGINIA AND NORTHERN PANHANDLE OF
WEST VIRGINIA.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS THIS AFTERNOON
AND EVENING. DAMAGING WINDS AND LARGE HAIL WILL BE THE MAIN
THREATS.

SOME OF THESE STORMS WILL CONTAIN HEAVY DOWNPOURS THAT MAY CAUSE
PONDING OF WATER ON ROADS AND IN POOR DRAINAGE AREAS. IF HEAVY
RAIN PERSISTS IN THE SAME AREA FOR SEVERAL HOURS...STREAM FLOODING
COULD RESULT.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.

MDZ001-PAZ009-016-023-074-076-WVZ023-041-081645-
GARRETT-FOREST-JEFFERSON PA-INDIANA-WESTMORELAND RIDGES-
FAYETTE RIDGES-PRESTON-TUCKER-
1235 PM EDT MON MAY 7 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN MARYLAND...NORTHWEST
PENNSYLVANIA...SOUTHWEST PENNSYLVANIA...WEST CENTRAL PENNSYLVANIA
AND NORTHERN WEST VIRGINIA.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.

In the hours before

Special weather statement, May 7, 3:48 PM EDT, 1 hour 5 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PITTSBURGH PA
348 PM EDT MON MAY 7 2012

OHZ041-PAZ020-072030-
BEAVER PA-COLUMBIANA OH-
348 PM EDT MON MAY 7 2012

...A STRONG THUNDERSTORM WILL AFFECT NORTHWESTERN BEAVER AND
SOUTHEASTERN COLUMBIANA COUNTIES...

AT 343 PM EDT...A STRONG THUNDERSTORM WAS LOCATED 5 MILES EAST OF
MILLPORT...MOVING EAST AT 20 MPH.

THIS STORM WILL PRODUCE HAIL UP TO NICKEL SIZE. HEAVY RAIN WILL POND
WATER ON ROADS AND QUICKLY FILL DITCHES AND SMALL STREAMS.

SOME LOCATIONS THAT WILL BE IMPACTED INCLUDE...
  SALINEVILLE...        LISBON...
  BEAVER CREEK STATE PARK...                  SHIPPINGPORT...
  DARLINGTON...         BLACKHAWK...

PLEASE REPORT SIGNIFICANT WEATHER TO THE NATIONAL WEATHER SERVICE BY
CALLING TOLL FREE...877-633-6772.

LAT...LON 4061 8035 4061 8052 4063 8052 4064 8054
      4062 8057 4063 8061 4060 8065 4060 8086
      4064 8086 4065 8088 4078 8090 4085 8038

Special weather statement, May 7, 4:17 PM EDT, 36 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PITTSBURGH PA
417 PM EDT MON MAY 7 2012

OHZ057-058-072100-
GUERNSEY OH-MUSKINGUM OH-
417 PM EDT MON MAY 7 2012

...A STRONG THUNDERSTORM WILL AFFECT CENTRAL MUSKINGUM AND
SOUTHWESTERN GUERNSEY COUNTIES...

AT 416 PM EDT...A STRONG THUNDERSTORM WAS LOCATED 4 MILES NORTHWEST
OF DUNCAN FALLS...MOVING EAST AT 20 MPH.

THIS STORM WILL PRODUCE PEA-SIZED HAIL. HEAVY RAIN WILL POND WATER ON
ROADS AND QUICKLY FILL DITCHES AND SMALL STREAMS.

SOME LOCATIONS THAT WILL BE IMPACTED INCLUDE...
  ZANESVILLE...         CANNELVILLE...        PHILO...
  DUNCAN FALLS...       BRIDGEVILLE...        CHANDLERSVILLE...
  NORWICH...            NEW CONCORD...

PLEASE REPORT SIGNIFICANT WEATHER TO THE NATIONAL WEATHER SERVICE BY
CALLING TOLL FREE...877-633-6772.

LAT...LON 4012 8170 3991 8159 3979 8202 3996 8212

Special weather statement, May 7, 4:26 PM EDT, 27 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PITTSBURGH PA
426 PM EDT MON MAY 7 2012

PAZ014-020-072115-
BEAVER PA-BUTLER PA-
426 PM EDT MON MAY 7 2012

...A STRONG THUNDERSTORM WILL AFFECT NORTHERN BEAVER AND SOUTHWESTERN
BUTLER COUNTIES...

AT 425 PM EDT...A STRONG THUNDERSTORM WAS LOCATED 3 MILES WEST OF
BLACKHAWK...MOVING EAST AT 20 MPH.

THIS STORM WILL PRODUCE HAIL UP TO NICKEL SIZE. HEAVY RAIN WILL POND
WATER ON ROADS AND QUICKLY FILL DITCHES AND SMALL STREAMS.

SOME LOCATIONS THAT WILL BE IMPACTED INCLUDE...
  BLACKHAWK...          DARLINGTON...         BEAVER FALLS...
  BEAVER...             FOMBELL...            ZELIENOPLE...
  EVANS CITY...         CRANBERRY...

PLEASE REPORT SIGNIFICANT WEATHER TO THE NATIONAL WEATHER SERVICE BY
CALLING TOLL FREE...877-633-6772.

LAT...LON 4067 8003 4067 8015 4064 8015 4063 8052
      4083 8052 4086 8030 4085 8016 4088 8016
      4089 8006

Special weather statement, May 7, 4:29 PM EDT, 24 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PITTSBURGH PA
429 PM EDT MON MAY 7 2012

PAZ008-014>016-072130-
BUTLER PA-CLARION PA-JEFFERSON PA-VENANGO PA-
429 PM EDT MON MAY 7 2012

...THUNDERSTORMS MOVING THROUGH BUTLER...CLARION...JEFFERSON AND
VENANGO COUNTIES...

AT 425 PM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR IN PITTSBURGH
INDICATED STRONG THUNDERSTORMS OVER SLIGO...MOVING NORTHEAST AT 20
MPH.  OTHER STRONG STORMS WERE JUST WEST OF SLIGO AND NEAR EMLENTON.

SOME LOCATIONS THAT WILL BE IMPACTED BY THESE STORMS INCLUDE...
  VAN...                SLIGO...              SENECA...
  RIMERSBURG...         OIL CITY...           KNOX...
  KENNERDELL...         EMLENTON...           EAU CLAIRE...
  CLINTONVILLE...       CLARION...            LIMESTONE...

PLEASE REPORT HAIL...STRONG WINDS OR WIND DAMAGE TO THE NATIONAL
WEATHER SERVICE BY CALLING TOLL FREE...1-877-633-6772.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

INTENSE LIGHTNING IS REPORTED WITH THIS STORM. IF OUTDOORS...STAY
AWAY FROM ISOLATED HIGH OBJECTS SUCH AS TREES. MOVE INDOORS IF
POSSIBLE. WHEN INDOORS...STAY AWAY FROM WINDOWS AND DOORS AND AVOID
USING TELEPHONES UNLESS IT IS AN EMERGENCY. TRY TO UNPLUG UNNECESSARY
ELECTRICAL APPLIANCES BEFORE THE THUNDERSTORM APPROACHES.

&&

LAT...LON 4156 7964 4148 7951 4144 7952 4144 7948
      4138 7948 4138 7941 4141 7940 4114 7896
      4099 7952 4102 7960 4104 7960 4106 7966
      4117 7969 4107 7969 4120 7994

Special weather statement, May 7, 4:36 PM EDT, 17 minutes before

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Special weather statement, May 7, 4:53 PM EDT, 0 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
May 7, 1:07 PM EDT	Special Weather Statement	PBZ	Armstrong, Butler	53 min
May 7, 1:59 PM EDT	Severe Thunderstorm Warning	PBZ	Armstrong, Clarion, Indiana, Jefferson	61 min
May 7, 2:51 PM EDT	Severe Thunderstorm Warning	PBZ	Indiana, Jefferson	54 min
May 7, 3:28 PM EDT	Special Weather Statement	PBZ	Venango	47 min
May 7, 4:26 PM EDT	Special Weather Statement	PBZ	Beaver	49 min
May 7, 4:29 PM EDT	Special Weather Statement	PBZ	Clarion, Jefferson, Venango	61 min
May 7, 4:30 PM EDT	Severe Thunderstorm Warning	PBZ	Clarion	60 min
May 7, 4:36 PM EDT	Special Weather Statement	PBZ	Beaver	39 min
May 7, 5:11 PM EDT	Special Weather Statement	PBZ	Armstrong	64 min
May 7, 5:45 PM EDT	Special Weather Statement	PBZ	Greene	45 min
May 7, 5:49 PM EDT	Special Weather Statement	PBZ	Allegheny	56 min
May 7, 6:21 PM EDT	Special Weather Statement	PBZ	Armstrong, Indiana	54 min
May 7, 7:43 PM EDT	Special Weather Statement	PBZ	Mercer	47 min
May 7, 2:22 PM EDT	Special Weather Statement	PBZ	Columbiana	53 min
May 7, 2:26 PM EDT	Special Weather Statement	PBZ	Muskingum, Noble	64 min
May 7, 2:57 PM EDT	Special Weather Statement	PBZ	Tuscarawas	63 min
May 7, 3:48 PM EDT	Special Weather Statement	PBZ	Columbiana	42 min
May 7, 4:17 PM EDT	Special Weather Statement	PBZ	Muskingum	43 min
May 7, 5:04 PM EDT	Special Weather Statement	PBZ	Monroe	41 min
May 7, 5:29 PM EDT	Special Weather Statement	PBZ	Marion, Monongalia	31 min
May 7, 5:54 PM EDT	Special Weather Statement	PBZ	Preston	36 min

Nearby

Special Weather Statements in West Virginia, 2012 Every special weather statement in 2012

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.