Alert archive / Pennsylvania / High Wind Watches in 2006

High Wind Watch 3, NWS Pittsburgh, PA

November 30, 200612 counties in Pennsylvania; 11 counties in Ohio; 6 counties in West Virginia

NWS Pittsburgh, PA issued this high wind watch at Nov 30, 2006, 3:10 AM EST for 12 counties in Pennsylvania; 11 counties in Ohio; 6 counties in West Virginia. It took effect at Dec 1, 2006, 9:00 AM EST. It was in force for .

The area

The counties it named.

The facts

Issued
Nov 30, 2006, 3:10 AM EST (08:10 UTC)
In effect from
Dec 1, 2006, 9:00 AM EST
Expired
Nov 30, 2006, 2:32 PM EST
In force
Issued by
NWS Pittsburgh, PA
All 29 counties

Belmont County, OH, Carroll County, OH, Columbiana County, OH, Coshocton County, OH, Guernsey County, OH, Harrison County, OH, Jefferson County, OH, Monroe County, OH, Muskingum County, OH, Noble County, OH, Tuscarawas County, OH, Allegheny County, PA, Armstrong County, PA, Beaver County, PA, Butler County, PA, Clarion County, PA, Forest County, PA, Greene County, PA, Jefferson County, PA, Lawrence County, PA, Mercer County, PA, Venango County, PA, Washington County, PA, Brooke County, WV, Hancock County, WV, Marion County, WV, Marshall County, WV, Ohio County, WV, Wetzel County, WV

The radar

The Pittsburgh radar (KPBZ), 29 km from the middle of the area, began a volume at 08:10 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 00:00Z, 8.2 hours before the alert went out and 37 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 00:00Z on 2006-11-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 27 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 00:00Z on 2006-11-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 125 square meters per square second.1939587897Sfc1 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
27 J/kg
Mixed-layer CIN
-114 J/kg
Mixed-layer LCL
836 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
125 m²/s²
0-3 km storm-relative helicity
154 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this high wind watch 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 high wind watch went out at Nov 30, 2:20 AM EST, 50 minutes earlier.

Area forecast discussion, Nov 30, 2:20 AM EST, 50 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PITTSBURGH PA
220 AM EST THU NOV 30 2006

.SHORT TERM /THROUGH TONIGHT/...
POPS FOR TDA HIER THAN PREV MODEL RUNS. RAISED POPS AND AGREE WITH
TIMING OF SHWRS PROVIDED BY AVIATION FCSTR BELOW. ADDED WIND GUSTS
20-25 MPH THIS AFTN, THEN A LULL OVERNIGHT, BEFORE GREAT WIND EVENT
FRI. TOOK AVG OF GFS AND NGM TEMPS (ETA SEEMS WAY TOO HI GIVEN EXPECTED
CLDS AND RAIN.
&&

.LONG TERM /FRI THROUGH THU/...
QUITE A WIND AND THUNDER-STORM FOR FRI. IN BUFKIT, NAM SHOWS SFC WIND
GUSTS DURING FRI: PIT 53, HLG 54, DUJ 55, MGW 55, ZZV 56. (ADD 8 FOR
MPH). WL DO HI WIND WATCH 14Z FRI-05Z SAT WITH STRONG COLD FRONT AND
DEEPENING LOW. MODELS NOW FARTHER WEST AND A BIT SLOWER WITH SURFACE
LOW FRI MOVING ACROSS OHIO. BUT BOTH GFS AND NAM HAVE PRIMARY LOW IN
APPROX SAME POSITION. SOME WRAP AROUND SNOW SHOWERS FRI NIGHT. BOUNDARY
LAYER WIND TOO WSWLY FOR LAKE EFFECT. SURFACE HIGH LOOKS TO BUILD IN BY
SAT, REDUCING COVERAGE OF SNOW SHOWERS. REMAINDER OF EXTENDED WILL
FEATURE BELOW NORMAL TEMPERATURES. BEST CHANCE FOR SNOW SHOWERS NOW
LOOKS TO BE MON WITH REINFORCING COLD ADVECTION AS LOW PRESSURE MOVES
ALONG THE EAST COAST.
&&

.AVIATION...
WEAKNESS IN THE UPPER LEVEL RIDGE PRODUCING SOME SPOTTY PRECIP IN
NORTHERN W VA, AND MORE STEADY RAINS BACK ALONG IND-OH BORDER. TIMING
BRINGS THE WVA SEGMENT AROUND 11Z TO PIT IF IT HOLDS TOGETHER. NEXT
BATCH COULD BE LATE MORNING INTO THE AFTERNOON WITH TEMPO LOWERING OF
CIGS TO AROUND 020 ACCORDING TO CROSS SECTIONS. CROSS SECTIONS AGAIN
SHOWING CIGS RISING AS SOUTHERN PORTS BREAK INTO THE WARM SECTOR
TONIGHT. NORTHERN TERMINALS CLOSER TO NEAR-STATIONARY BOUNDARY CAN
BRING IN -SHRA MID TO LATE MORNING...THEN MORE STEADY PRECIP LATER THIS
AFTN AND OVERNIGHT WITH LOWERING CIGS TO MVFR. WINDS S-SW AROUND 10 KT
WITH SOME GUSTINESS THIS AFTN. WILL BE CONSIDERING POSSIBLE LLWS IN
NEXT ISSUANCE FOR OVERNIGHT AFT 06Z.
&&

.PBZ WATCHES/WARNINGS/ADVISORIES...
MD...HI WIND WATCH 9AM FRI TO 1159PM FRI FOR MDZ001.
OH...HI WIND WATCH 9AM FRI TO 1159PM FRI FOR
     OHZ039>041-048>050-057>059-068-069.
PA...HI WIND WATCH 9AM FRI TO 1159PM FRI FOR
     PAZ007>009-013>016-020>023-029>032.
WV...HI WIND WATCH 9AM FRI TO 1159PM FRI FOR
     WVZ001>004-012-021>023-041.
&&
Hazardous weather outlook, Nov 29, 5:20 AM EST, 21 hours 50 minutes before
<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</head>
<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>

The office that day

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

IssuedProductOfficeCountiesLasted
Nov 30, 2:32 PM ESTHigh Wind WarningPBZAllegheny, Armstrong, Beaver, Butler, Clarion, Forest and 6 more30 hr

Nearby

High Wind Watches in Pennsylvania, 2006High Wind Watches in Ohio, 2006High Wind Watches in West Virginia, 2006Every high wind watch in 2006

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.