Alert archive / Montana / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 56, NWS Glasgow, MT

July 10, 2001Prairie County, Montana

NWS Glasgow, MT issued this severe thunderstorm warning at Jul 10, 2001, 8:05 PM MDT for Prairie County, Montana. It was in force for 55 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jul 10, 2001, 8:05 PM MDT (02:05 UTC)
Expired: Jul 10, 2001, 9:00 PM MDT
In force: 55 min
Issued by: NWS Glasgow, MT
Area: Whole counties

County Prairie County, MT

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jul 10, 3:30 PM MDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Glasgow Intl Airport, MT (KGGW), launched 00:00Z, 2.1 hours before the alert went out and 177 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: 2 J/kg
Mixed-layer CIN: -199 J/kg
Mixed-layer LCL: 786 m above ground
0-6 km bulk shear: 42 kt
0-1 km storm-relative helicity: 215 m²/s²
0-3 km storm-relative helicity: 342 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 severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Glasgow, MT wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 10, 9:02 AM MDT, 11 hours 3 minutes earlier.

Area forecast discussion, Jul 10, 9:02 AM MDT, 11 hours 3 minutes before

NORTHEAST MONTANA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GLASGOW MT
902 AM MDT TUE JUL 10 2001

...88D IS DOWN UFN...

CLOUD SHIELD OVER MOST OF THE CWFA...LIGHTNING STRIKES NOTED IN THE
FAR NORTHEASTERN ZONES. THE SOUTHEASTERN ZONES HAVE THE BEST SUN
RIGHT NOW...HOWEVER CLOUDS WILL MOVE ACROSS THE AREA QUICKLY THIS
MORNING. TEMPS SEEM A BIT TOO HIGH IN THE SOUTHWEST TODAY...TEMPS
ONLY IN THE 60S THIS MORNING...WOULD EXPECT UNDER CLOUD COVER THAT
IT COULD ONLY SQUEEZE ANOTHER 10 DEGREES AT BEST.  WILL LOWER TEMPS
ALL ZONES. LOOKING AT THIS MORNINGS MESO-ETA CURRENT POP FORECAST
LOOKS GOOD.                 PROTON

EXTENDED...MAIN 500MB FLOW WILL PERSIST OVER THE REGION THROUGH MUCH
OF THE EXTENDED. EMBEDDED SHORTWAVES IN THIS FLOW COMBINED WITH
MONSOONAL MOISTURE WILL RESULT IN A CHANCE OF SHOWERS AND
THUNDERSTORMS EACH DAY. TEMPERATURES LOOK TO BE NEAR TO SLIGHTLY
ABOVE NORMAL. CURRENT FORECAST APPEARS ON TRACK...NO CHANGES
PLANNED.    MEIER

KGGW /078 061/076 058/083 060/086 061/088 062/086 060/085
      TWTTTTT  76795/7833333

KGDV /084 062/074 059/083 060/087 062/089 062/086 060/085
      TWTTTTT  76596/7833333

In the hours before

Local storm report, Jul 10, 7:20 PM MDT, 45 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>

Nearby

Severe Thunderstorm Warnings in Montana, 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; the sounding from the Mesonet's radiosonde archive.