Alert archive / Ohio / Flash Flood Warnings in 1998

Flash Flood Warning 141, NWS Pittsburgh, PA

June 29, 1998Harrison County, Ohio

NWS Pittsburgh, PA issued this flash flood warning at Jun 29, 1998, 10:04 AM EDT for Harrison County, Ohio. It was in force for 13 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jun 29, 1998, 10:04 AM EDT (14:04 UTC)
Expired
Jun 29, 1998, 11:00 PM EDT
In force
13 hr
Issued by
NWS Pittsburgh, PA
Area
Whole counties

County Harrison County, OH

The radar

The Pittsburgh radar (KPBZ), 78 km from the middle of the area, began a volume at 14:06 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, 2.1 hours before the alert went out and 85 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-pSkew-T log-p diagram, Pittsburgh, PA at 12:00Z on 1998-06-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 624 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Pittsburgh, PA at 12:00Z on 1998-06-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 97 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
624 J/kg
Mixed-layer CIN
-122 J/kg
Mixed-layer LCL
613 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
97 m²/s²
0-3 km storm-relative helicity
95 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

What forecasters said that day

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

In the hours before

Special weather statement, Jun 29, 5:10 AM EDT, 4 hours 54 minutes before
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Local storm report, Jun 29, 7:28 AM EDT, 2 hours 36 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE PITTSBURGH PA
728 AM EDT MON JUN 29 1998

TIME(EDT)  ....CITY LOCATION....     STATE...EVENT/REMARKS...
           ...COUNTY LOCATION...
0720 AM     COUNTY-WIDE              OH    FLOODING
06/29/98    GUERNSEY                       MANY ROADS STILL CLOSED BY
                                           FLOODING THIS MORNING...
                                           INCLUDING COUNTY ROAD 35
                                           NORTH OF CAMBRIDGE...
                                           INTERSTATE 77 NEAR SALT
                                           FORK DAM...US ROUTE 40
                                           WEST OF CAMBRIDGE...AND
                                           STATE ROUTE 209 NEAR
                                           CAMBRIDGE.
Special weather statement, Jun 29, 10:00 AM EDT, 4 minutes before
MDZ001-OHZ039>041-048>050-057>059-068-069-PAZ007>009-013>016-020>023-
029>032-WVZ001>004-012-021>023-041-292000-

SEVERE WEATHER OUTLOOK
WEATHER SERVICE PITTSBURGH PA
1000 AM EDT MON JUN 29 1998

A RISK OF SEVERE THUNDERSTORMS WILL CONTINUE THROUGH TONIGHT.

STORMS WILL PUSH ACROSS THE REGION ONCE AGAIN THIS AFTERNOON AND TONIGHT.
THESE STORMS WILL BE LADEN WITH NEAR TROPICAL-LIKE MOISTURE CAPABLE
OF PRODUCING TORRENTIAL DOWNPOURS WHICH CAN CAUSE RAPID RISES IN
IN AREA STREAMS AND CREEKS. SOILS REMAIN HIGHLY SATURATED IN MANY
LOCALITIES INCREASING THE THREAT FOR ADDITIONAL FLASH FLOOD AND FLOOD
PROBLEMS. THIS THREAT FOR HEAVY RAIN IS VERY SERIOUS.

A FLASH FLOOD WATCH REMAINS IN EFFECT TIL 8AM TUESDAY MORNING.
THIS WATCH INCLUDES MUCH OF SOUTHWEST PENNSYLVANIA...ALL OF EAST CENTRAL
OHIO...EXTREME NORTHERN WEST VIRGINIA AND GARRETT COUNTY MARYLAND.

IN ADDITION THESE STORMS HAVE THE POTENTIAL TO PRODUCE DAMAGING WINDS
...DANGEROUS LIGHTNING AND HAIL. ISOLATED TORNADOES ARE ALSO POSSIBLE.

SEVERE WEATHER IS POSSIBLE AT ANYTIME DURING THIS AFTERNOON AND
EVENING HOURS. STAY ALERT AND BE PREPARED TO MOVE TO A PLACE OF SAFETY
IN THE EVENT OF THREATENING WEATHER.

SKYWARN AND HAM RADIO ACTIVATION IS LIKELY.

FOR THE LATEST UP TO DATE WEATHER INFORMATION LISTEN TO NOAA WEATHER
RADIO. WEATHER INFORMATION IS ALSO AVAILABLE ON THE NATIONAL WEATHER
SERVICE PITTSBURGH WEB SITE.

CHECK IT OUT AT WWW.NWS.NOAA.GOV/ER/PIT
Special weather statement, Jun 29, 10:00 AM EDT, 4 minutes before
MDZ001-OHZ039>041-048>050-057>059-068-069-PAZ007>009-013>016-020>023-
029>032-WVZ001>004-012-021>023-041-292000-

SEVERE WEATHER OUTLOOK
WEATHER SERVICE PITTSBURGH PA
1000 AM EDT MON JUN 29 1998

A RISK OF SEVERE THUNDERSTORMS WILL CONTINUE THROUGH TONIGHT.

STORMS WILL PUSH ACROSS THE REGION ONCE AGAIN THIS AFTERNOON AND TONIGHT.
THESE STORMS WILL BE LADEN WITH NEAR TROPICAL-LIKE MOISTURE CAPABLE
OF PRODUCING TORRENTIAL DOWNPOURS WHICH CAN CAUSE RAPID RISES IN
IN AREA STREAMS AND CREEKS. SOILS REMAIN HIGHLY SATURATED IN MANY
LOCALITIES INCREASING THE THREAT FOR ADDITIONAL FLASH FLOOD AND FLOOD
PROBLEMS. THIS THREAT FOR HEAVY RAIN IS VERY SERIOUS.

A FLASH FLOOD WATCH REMAINS IN EFFECT TIL 8AM TUESDAY MORNING.
THIS WATCH INCLUDES MUCH OF SOUTHWEST PENNSYLVANIA...ALL OF EAST CENTRAL
OHIO...EXTREME NORTHERN WEST VIRGINIA AND GARRETT COUNTY MARYLAND.

IN ADDITION THESE STORMS HAVE THE POTENTIAL TO PRODUCE DAMAGING WINDS
...DANGEROUS LIGHTNING AND HAIL. ISOLATED TORNADOES ARE ALSO POSSIBLE.

SEVERE WEATHER IS POSSIBLE AT ANYTIME DURING THIS AFTERNOON AND
EVENING HOURS. STAY ALERT AND BE PREPARED TO MOVE TO A PLACE OF SAFETY
IN THE EVENT OF THREATENING WEATHER.

SKYWARN AND HAM RADIO ACTIVATION IS LIKELY.

FOR THE LATEST UP TO DATE WEATHER INFORMATION LISTEN TO NOAA WEATHER
RADIO. WEATHER INFORMATION IS ALSO AVAILABLE ON THE NATIONAL WEATHER
SERVICE PITTSBURGH WEB SITE.

CHECK IT OUT AT WWW.NWS.NOAA.GOV/ER/PIT

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 28, 8:17 PM EDTSevere Thunderstorm WarningPBZGuernsey58 min
Jun 28, 8:49 PM EDTFlash Flood WarningPBZJefferson4 hr
Jun 28, 8:50 PM EDTSevere Thunderstorm WarningPBZNoble55 min
Jun 28, 8:54 PM EDTSevere Thunderstorm WarningPBZMonroe61 min
Jun 28, 9:47 PM EDTFlash Flood WarningPBZCoshocton, Guernsey, Muskingum, Noble13 hr
Jun 28, 9:47 PM EDTFlash Flood WarningPBZBelmont, Harrison, Monroe13 hr
Jun 28, 9:47 PM EDTFlash Flood WarningPBZTuscarawas13 hr
Jun 29, 5:24 AM EDTSevere Thunderstorm WarningPBZTuscarawas51 min
Jun 29, 5:33 AM EDTSevere Thunderstorm WarningPBZCarroll42 min
Jun 29, 10:04 AM EDTFlash Flood WarningPBZCoshocton, Guernsey, Muskingum, Tuscarawas13 hr
Jun 29, 10:04 AM EDTFlash Flood WarningPBZBelmont, Monroe, Noble13 hr
Jun 29, 11:32 AM EDTSevere Thunderstorm WarningPBZCarroll, Tuscarawas43 min
Jun 29, 7:32 PM EDTFlash Flood WarningPBZCarroll, Jefferson3 hr
Jun 28, 8:36 PM EDTSevere Thunderstorm WarningPBZWashington74 min
Jun 28, 8:40 PM EDTTornado WarningPBZWashington60 min
Jun 28, 9:20 PM EDTSevere Thunderstorm WarningPBZGreene70 min
Jun 28, 9:25 PM EDTFlash Flood WarningPBZGreene4 hr
Jun 28, 9:44 PM EDTSevere Thunderstorm WarningPBZFayette61 min
Jun 28, 8:34 PM EDTSevere Thunderstorm WarningPBZBrooke, Ohio41 min
Jun 28, 9:58 PM EDTSevere Thunderstorm WarningPBZPreston62 min
Jun 28, 10:23 PM EDTFlash Flood WarningPBZMarion6 hr
Jun 28, 10:23 PM EDTFlash Flood WarningPBZPreston6 hr
Jun 28, 10:36 PM EDTSevere Thunderstorm WarningPBZTucker59 min
Jun 28, 10:38 PM EDTFlash Flood WarningPBZTucker5 hr
Jun 29, 8:26 AM EDTFlash Flood WarningPBZMarshall3 hr
Jun 29, 1:09 PM EDTFlash Flood WarningPBZWetzel5 hr

Nearby

Flash Flood Warnings in Ohio, 1998Every flash flood warning in 1998

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.