Alert archive / Ohio / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 100, NWS Pittsburgh, PA

July 9, 2001Guernsey County, Ohio

NWS Pittsburgh, PA issued this severe thunderstorm warning at Jul 9, 2001, 9:26 PM EDT for Guernsey County, Ohio. It was in force for 49 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: Jul 9, 2001, 9:26 PM EDT (01:26 UTC)
Expired: Jul 9, 2001, 10:15 PM EDT
In force: 49 min
Issued by: NWS Pittsburgh, PA
Area: Whole counties

County Guernsey County, OH

The radar

The Pittsburgh radar (KPBZ), 121 km from the middle of the area, began a volume at 01:26 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.

What was reported inside it

Time	Report	Where	Remark
Jul 9, 9:30 PM EDT	Thunderstorm Wind	Byesville, OH	Thunderstorm winds downed a few trees.

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, 1.4 hours before the alert went out and 125 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: 22 J/kg
Mixed-layer CIN: -66 J/kg
Mixed-layer LCL: 2010 m above ground
0-6 km bulk shear: 26 kt
0-1 km storm-relative helicity: 32 m²/s²
0-3 km storm-relative helicity: 78 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

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 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 Jul 9, 3:40 PM EDT, 5 hours 46 minutes earlier.

Area forecast discussion, Jul 9, 3:40 PM EDT, 5 hours 46 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PITTSBURGH PA
340 PM EDT MON JUL 9 2001

WEAK SFC LOW AND VORT MAX WILL ENTER WESTERN ZONES BY 06Z TUES.
SINCE THERE IS AN ORGANIZED 2D MOIST FRONT GEN PATTERN AND MOISTR
FLUX CONV... CANNOT RULE OUT CONVECTION COMPLETELY... PLUS
INSTABILITY AXIS 1000-1500 CAPE THROUGH SAME AREA... SO SLIGHT
CHANCE SEEMS PRUDENT FOR WESTERN ZONES TONIGHT.

TOMORROW DEWPTS ENTER UPPER 60'S AND PARTLY CLOUDY SKY WILL ALLOW
CONVECTIVE TEMP TO BE REACHED WITH MESO ETA INDICATING LOW LEVEL
FORCING.  POPS 30 FOR ALL ZONES.

TOMORROW NIGHT SEEMS TO BE THE BEST CHANCE... AND MAY BE HEAVY RAIN
TOO.  THE LOW LEVEL FORCING IS STILL STRONG AT 00Z WEDNESDAY AND
VERY IMPRESSIVE OMEGA FIELD BETWEEN 00-03Z.  ABUNDANT MOISTURE...
PW'S 1.5-1.7 INCHES.  EVEN SOME CONVECTIVE SHEAR... SPC IS ON THE
SAME PAGE WITH SLIGHT RISK INDICATED.

BALANCE OF FORECAST REMAINS UNCHANGED.

SOWKO/REED

FCSTID = 14
PIT   65  85  60  76 /  10  30  50  20
HLG   65  85  60  76 /  10  30  50  20
MGW   65  85  61  76 /  10  30  50  20
ZZV   65  86  60  77 /  20  30  50  20
PHD   65  86  60  77 /  20  30  50  20
FKL   62  82  56  72 /  10  30  50  20
DUJ   62  82  56  72 /  10  30  50  20
LBE   65  85  60  76 /  10  30  50  20
BTP   63  83  58  74 /  10  30  50  20
IDI   63  83  58  74 /  10  30  50  20
ODM   61  82  58  73 /  10  30  40  20

.PBZ...
MD...NONE.
OH...NONE.
PA...NONE.
WV...NONE.

In the hours before

Special weather statement, Jul 9, 6:48 PM EDT, 2 hours 38 minutes before

OHZ048-057-100100-
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PITTSBURGH PA
648 PM EDT MON JUL 9 2001

...EVENING THUNDERSTORMS MOVING THROUGH THE REGION...

SHOWERS AND THUNDERSTORMS WnILL MOVE THROUGH WESTERN COSHOCTON COUNTY
BETWEEN 7:00 PM AND 8:00 PM AND MUSKINGUM COUNTY BETWEEN 7:30 PM AND
8:30 PM.  THESE STORMS MAY PRODUCE FREQUENT LIGHTNING...SMALL
HAIL...AND GUSTY WIND UP TO 40 MPH.

Special weather statement, Jul 9, 8:42 PM EDT, 44 minutes before

OHZ057-100200-
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PITTSBURGH PA
842 PM EDT MON JUL 9 2001

...THUNDERSTORMS MOVING THROUGH MUSKINGUM COUNTY...

THUNDERSTORMS WITH VERY HEAVY RAINS...GUSTY WINDS AND HAIL WERE
MOVING THROUGH MUSKINGUM COUNTY.   THE STRONGEST STORMS WILL PASS
NEAR ZANESVILLE...ADAMSVILLE...NORWICH...AND NEW CONCORD.  THE
STORMS ARE MOVING SOUTHEAST AROUND 20 MPH AND WILL MOVE OUT OF THE
AREA BY 10 PM.

EXPECT TORRENTIAL DOWNPOURS...ALONG WITH WIND GUSTS OF OVER 40 MPH.

TRAVELERS ON I-70 NEAR ZANESVILLE WILL ENCOUNTER PONDING OF WATER ON
THE ROADWAY.

Special weather statement, Jul 9, 9:06 PM EDT, 20 minutes before

OHZ058-100200-
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PITTSBURGH PA
906 PM EDT MON JUL 9 2001

...THUNDERSTORMS MOVING THROUGH GUERNSEY COUNTY...

THUNDERSTORMS WITH VERY HEAVY RAINS...GUSTY WINDS AND HAIL WERE
MOVING THROUGH WESTERN GUERNSEY COUNTY.   THE STRONGEST STORMS WILL
PASS MAINLY WEST AND SOUTH OF CAMBRIDGE NEAR CLAYSVILLE...CASSELL
AND FAIRDALE.  THE STORMS ARE MOVING SOUTHEAST AROUND 20 MPH AND
WILL MOVE O`UT OF THE AREA BY 10 PM.

EXPECT TORRENTIAL DOWNPOURS...ALONG WITH WIND GUSTS OF OVER 40 MPH.

TRAVELERS ON I-70 WEST OF CAMBRIDGE WILL ENCOUNTER PONDING OF WATER
ON THE ROADWAY.

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 10, 2:28 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny	47 min
Jul 10, 2:45 PM EDT	Severe Thunderstorm Warning	PBZ	Westmoreland	60 min
Jul 10, 3:06 PM EDT	Severe Thunderstorm Warning	PBZ	Jefferson	24 min
Jul 10, 3:24 PM EDT	Severe Thunderstorm Warning	PBZ	Washington	66 min
Jul 10, 3:34 PM EDT	Severe Thunderstorm Warning	PBZ	Fayette	41 min
Jul 10, 4:26 PM EDT	Severe Thunderstorm Warning	PBZ	Washington	34 min
Jul 10, 5:01 PM EDT	Severe Thunderstorm Warning	PBZ	Fayette, Washington	59 min
Jul 10, 5:40 PM EDT	Severe Thunderstorm Warning	PBZ	Greene	65 min
Jul 10, 5:44 PM EDT	Flash Flood Warning	PBZ	Washington	3 hr
Jul 9, 8:59 PM EDT	Severe Thunderstorm Warning	PBZ	Muskingum	61 min
Jul 9, 9:20 PM EDT	Flash Flood Warning	PBZ	Muskingum	3 hr
Jul 10, 4:14 PM EDT	Severe Thunderstorm Warning	PBZ	Carroll	31 min
Jul 10, 3:20 PM EDT	Severe Thunderstorm Warning	PBZ	Hancock	25 min
Jul 10, 5:42 PM EDT	Severe Thunderstorm Warning	PBZ	Marshall	63 min
Jul 10, 6:10 PM EDT	Severe Thunderstorm Warning	PBZ	Monongalia, Wetzel	65 min
Jul 10, 6:43 PM EDT	Severe Thunderstorm Warning	PBZ	Marion	62 min
Jul 10, 7:12 PM EDT	Severe Thunderstorm Warning	PBZ	Preston	48 min
Jul 10, 7:26 PM EDT	Severe Thunderstorm Warning	PBZ	Tucker	49 min
Jul 10, 7:42 PM EDT	Flash Flood Warning	PBZ	Marion	3 hr

Nearby

Severe Thunderstorm Warnings in Ohio, 2001 Every severe thunderstorm warning in 2001

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; radar from the NEXRAD Level II archive.