Severe Thunderstorm Warning 206, NWS Hastings, NE

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HASTINGS NE
259 PM CDT THU SEP 3 2009

.SHORT TERM...TONIGHT THROUGH 12Z SATURDAY. MAIN FORECAST CONCERN
REMAINS WITH PRECIPITATION CHANCES EARLY ON IN THE PERIOD.

WHILE NOT QUITE AS SHARP AND COMPACT AS YESTERDAY AT THIS TIME...THE
UPPER LEVEL LOW PRESSURE SYSTEM REMAINS EVIDENT ON SATELLITE
IMAGERY...CURRENTLY SET UP OVER NORTHEASTERN NEB.  SYSTEM IS
BECOMING A BIT MORE PHASED INTO/IMPACTED BY THE TROUGH/AREA OF LOW
PRESSURE JUST TO THE EAST...BUT WILL REMAIN THE PRIMARY FEATURE
THROUGH THE SHORT TERM PERIOD.  SFC PATTERN CONTINUES TO BE ON THE
WEAK SIDE...WITH THE MAIN TROUGH DRAPED FROM NNE NEB THROUGH THE
WESTERN PORTIONS OF OUR CWA AND INTO WEST CENTRAL KS. MODELS IN
PRETTY GOOD AGREEMENT SHOWING A CONTINUED INCREASE IN SHOWER/TSTORM
ACTIVITY AS LIFT INCREASES WITH THIS SYSTEM SHIFTING SOUTH THROUGH
THE REGION...WITH CONVECTION ALREADY FIRING ACROSS THE NORTH NEAR
THE MAIN TROUGH AND MORE ACTION ALONG ANOTHER BOUNDARY NEAR THE
NE/KS BORDER. KEPT HIGHEST POPS THIS AFTERNOON CONFINED TO THE
EASTERN HALF OF THE CWA...SHIFTING FURTHER TO THE SOUTH AFTER 00Z.
AS FAR AS THE THREAT FOR STRONG/SEVERE THUNDERSTORMS...BEST
CHANCES WILL BE ACROSS THE SOUTHERN THIRD/HALF OF THE CWA...WHERE
LESS CLOUD COVER/MORE HEATING HAS ALLOWED FOR THE DEVELOPMENT OF
BETTER INSTABILITY. A SEVERE THUNDERSTORM OR TWO IS NOT OUT OF THE
QUESTION...MAINLY THIS AFTERNOON AND INTO THE EARLY EVENING. THIS
SYSTEM REMAINS SLOW TO MOVE SOUTH THROUGH THE REGION...AND KEPT
SOME POPS GOING OVERNIGHT...BUT REALLY TAPERING OFF AFTER MIDNIGHT
AS BEST CHANCES PUSH FURTHER INTO KS. MODELS CONTINUE TO SHOW A
FEW SHOWERS LINGERING INTO THE FIRST PART OF FRIDAY MORNING...SO
KEPT LOW POPS IN ACROSS OUR KS COUNTIES. OVERNIGHT TONIGHT ALSO
LOOKS TO BE SIMILAR TO LAST NIGHT IN THAT LOW LEVEL CLOUDS LOOK TO
STICK AROUND WITH SOME FOG DEVELOPING AS LIGHT EASTERLY FLOW
CONTINUES ACROSS THE CWA. ONCE THE SHOWERS PUSH OUT DURING THE
FIRST PART OF FRIDAY AND THE FOG DISSIPATES...THE REST OF FRIDAY
IS EXPECTED TO BE DRY...WITH HIGHS BACK INTO THE MID 70S.

.LONG TERM...SATURDAY THROUGH THURSDAY. REALLY NICE LABOR DAY
WEEKEND APPEARS ON TAP WITH COMFORTABLE TEMPERATURES AND DRY
CONDITIONS. SOUTHERLY BREEZE WILL BE INCREASING SUNDAY...WITH OFF/ON
BREEZY CONDITIONS ON LATE SUNDAY AFTERNOON AND MONDAY. TEMPERATURES
WILL SNEAK BACK INTO THE 80S BY LABOR DAY.

AFTER A WARM DAY TUESDAY...THE ONLY WEATHER MAKER OF THE FORECAST COMES
INTO PLAY...A COLD FRONT WHICH WILL PASS THROUGH THE CWFA LATE TUESDAY
NIGHT AND WEDNESDAY. THERE ARE SOME SIGNS WARM/MOIST ADVECTION LATE
MONDAY NIGHT AND EARLY TUESDAY...COULD RESULT IN SOME ELEVATED
CONVECTION. THIS WILL HAVE TO BE WATCHED THROUGH THE WEEKEND.
OTHERWISE...INCREASED SHOWER/STORM CHANCE ALONG THE FRONT TUESDAY
NIGHT...WITH LINGERING CHANCES THROUGH WEDNESDAY. INITIAL COLD AIR
SURGE MAY NOT BE AS ROBUST AS PREVIOUSLY THOUGHT WITH UPPER FLOW
STAYING MORE ZONALISH IN NATURE...BUT STILL THINK TEMPERATURES WILL
SLIDE BACK INTO THE 70S FOR HIGHS WEDNESDAY AND THURSDAY. LOWERED
BOTH HIGH AND LOW TEMPERATURES DAYS 6/7 FROM INITIAL HPC GUIDANCE.

&&

.AVIATION...18Z TAF. NOT THE MOST PLEASANT OF CONDITIONS EXPECTED
FOR THIS TAF PERIOD...WITH PRIMARY CONCERN LYING WITH
PRECIPITATION CHANCES THIS AFTERNOON AND CEILINGS. MAIN UPPER
LEVEL SYSTEM CURRENTLY SET UP OVER NORTHEASTERN NEB...AND WILL
CONTINUE TO SLOWLY SHIFT SOUTH THROUGH THE DAY. SHOWERS/TSTORMS
EXPECTED TO INCREASE THIS AFTERNOON...BUT LEFT AS TEMPO GROUP AS
NOT EXPECTING ACTIVITY TO BE WIDESPREAD. MVFR CLOUD DECK EXPECTED
TO HANG AROUND THROUGH MOST OF THE TAF PERIOD...AND AT TIMES
APPROACHING IFR CONDITIONS WITH POSSIBLE PRECIP THIS AFTERNOON AND
AGAIN OVERNIGHT WITH SOME FOG IN THE AREA. CURRENT LIGHT/VAR WINDS
WILL GRADUALLY BECOME MORE EASTERLY BY THIS EVENING AND CONTINUE
ON THROUGH THE DURATION OF THE TAF PERIOD.

&&

.GID WATCHES/WARNINGS/ADVISORIES...
NE...NONE.
KS...NONE.
&&

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE HASTINGS NE
124 PM CDT THU SEP 3 2009

KSZ005>007-017>019-NEZ039>041-046>049-060>064-072>077-082>087-
041200-
PHILLIPS-SMITH-JEWELL-ROOKS-OSBORNE-MITCHELL-VALLEY-GREELEY-NANCE-
SHERMAN-HOWARD-MERRICK-POLK-DAWSON-BUFFALO-HALL-HAMILTON-YORK-
GOSPER-PHELPS-KEARNEY-ADAMS-CLAY-FILLMORE-FURNAS-HARLAN-FRANKLIN-
WEBSTER-NUCKOLLS-THAYER-
124 PM CDT THU SEP 3 2009

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH CENTRAL NEBRASKA AND
PORTIONS OF NORTH CENTRAL KANSAS.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

UPPER LEVEL LOW PRESSURE WILL SLOWLY SLIP SOUTH ACROSS EASTERN
NEBRASKA THROUGH TONIGHT...AND BRING AT LEAST SOME CHANCE FOR
THUNDERSTORMS TO THE ENTIRE OUTLOOK AREA.

IT APPEARS THE MAIN RISK AREA FOR A FEW STRONGER THUNDERSTORMS
WILL BE SOUTH OF A LINE FROM GENEVA...TO ALMA NEBRASKA...AND ACROSS
NORTH CENTRAL KANSAS. A SEVERE THUNDERSTORM CAN NOT BE RULED OUT
IN THIS AREA...ALTHOUGH WIDESPREAD SEVERE WEATHER IS NOT EXPECTED.
THE MAIN TIME FRAME FOR THE STRONGER STORMS WILL BE BETWEEN 3 PM
AND 9 PM. HAZARDS WILL INCLUDE HAIL TO THE SIZE OF QUARTERS...WIND
GUSTS IN EXCESS OF 50 MPH...AND LOCALLY HEAVY RAINFALL. THUNDERSTORM
MOVEMENT SHOULD BE TO THE SOUTH SOUTHEAST AT AROUND 15 MPH.

ALSO...AREAS OF FOG AFTER MIDNIGHT WILL RESULT IN LOWERED VISIBILITIES
FOR LATE NIGHT TRAVELERS.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY.

THE PASSAGE OF A COLD FRONT WILL BRING ANOTHER CHANCE FOR THUNDERSTORMS
TO THE OUTLOOK AREA TUESDAY AND WEDNESDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION SHOULD NOT BE NEEDED.

&&

MORE INFORMATION MAY BE OBTAINED AT THE FOLLOWING WEB PAGE:
   HTTP://WWW.WEATHER.GOV/HASTINGS  (ALL LOWERCASE)

<!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>

<!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>

<!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>

<!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>

<!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>

<!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>