Alert archive / North Dakota / Severe Thunderstorm Warnings in 2007
Severe Thunderstorm Warning 268, NWS Bismarck, ND
NWS Bismarck, ND issued this severe thunderstorm warning at Aug 8, 2007, 5:34 PM CDT for LaMoure County, North Dakota. It was in force for 56 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
- Aug 8, 2007, 5:34 PM CDT (22:34 UTC)
- Expired
- Aug 8, 2007, 6:30 PM CDT
- In force
- 56 min
- Issued by
- NWS Bismarck, ND
- Area
- Counties, with a storm outline in the text
County LaMoure County, ND
The radar
The Aberdeen radar (KABR), 112 km from the middle of the area, began a volume at 22:37 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Aug 8, 2:57 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Aberdeen, SD (KABR), launched 12:00Z, 10.6 hours before the alert went out and 173 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.
- Mixed-layer CAPE
- 244 J/kg
- Mixed-layer CIN
- -248 J/kg
- Mixed-layer LCL
- 973 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- -18 m²/s²
- 0-3 km storm-relative helicity
- -1 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.1
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 Bismarck, ND wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 8, 3:15 PM CDT, 2 hours 19 minutes earlier.
Area forecast discussion, Aug 8, 3:15 PM CDT, 2 hours 19 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE BISMARCK ND 315 PM CDT WED AUG 8 2007 .SHORT TERM...TONIGHT THROUGH SATURDAY NIGHT... MODELS IN FAIR AGREEMENT AND USED GFS FOR GRIDS. STRONG UPPER LEVEL RIDGE CONTINUES WITH INTERMITTENT SHORTWAVES TOPPING RIDGE AND DIVING SOUTHEAST EAST OF STATE. AIRMASS WILL BE UNSTABLE MOST DAYS AND DIFFICULT TO PICK A TIME WHEN WE COULD TAKE OUT LOW POPS AND AS A RESULT MOST PERIODS HAVE ISOLATED SHOWERS AND THUNDERSTORMS. TEMPERATURES REMAIN SLIGHTLY ABOVE NORMAL BUT NOT UNUSUAL. .LONG TERM...SUNDAY THROUGH WEDNESDAY NIGHT... A BROAD UPPER LEVEL RIDGE WILL DEVELOP OVER THE REGION IN THE LONG TERM. SHORT WAVES MOVING OVER THE RIDGE WILL BRING ON AND OFF AGAIN CHANCES OF TSTMS. TEMPERATURES WILL BE AT OR ABOVE NORMAL. && .AVIATION... SCATTERED THUNDERSTORMS WILL MOVE ACROSS THE REGION TONIGHT AS A SURFACE LOW MOVES SLOWLY ACROSS THE DAKOTAS. && .BIS WATCHES/WARNINGS/ADVISORIES... NONE. && HW/TSW
Hazardous weather outlook, Aug 8, 4:30 AM CDT, 13 hours 4 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE BISMARCK ND 430 AM CDT WED AUG 8 2007 NDZ001>005-009>013-017>023-025-031>037-040>048-050-051-090930- DIVIDE-BURKE-RENVILLE-BOTTINEAU-ROLETTE-WILLIAMS-MOUNTRAIL-WARD- MCHENRY-PIERCE-MCKENZIE-DUNN-MERCER-OLIVER-MCLEAN-SHERIDAN-WELLS- FOSTER-GOLDEN VALLEY-BILLINGS-STARK-MORTON-BURLEIGH-KIDDER- STUTSMAN-SLOPE-HETTINGER-GRANT-BOWMAN-ADAMS-SIOUX-EMMONS-LOGAN- LA MOURE-MCINTOSH-DICKEY- 430 AM CDT WED AUG 8 2007 /330 AM MDT WED AUG 8 2007/ THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTH CENTRAL NORTH DAKOTA...NORTHWEST NORTH DAKOTA...SOUTH CENTRAL NORTH DAKOTA...SOUTHEAST NORTH DAKOTA AND SOUTHWEST NORTH DAKOTA. .DAY ONE...TODAY AND TONIGHT SCATTERED SHOWERS AND THUNDERSTORMS WILL CONTINUE THROUGH THE MORNING THEN BECOME ISOLATED THIS AFTERNOON IN CENTRAL AND WESTERN NORTH DAKOTA. A WEAKENING COLD FRONT OVER EASTERN MONTANA WILL FALL APART AS IT MOVES TOWARD BISMARCK EARLY THIS AFTERNOON... FOLLOWED BY AN UPPER LEVEL DISTURBANCE TRAVERSING ACROSS THE STATE LATER TODAY. THIS WILL HELP INITIATE ADDITIONAL SHOWERS AND THUNDERSTORMS THIS AFTERNOON AND EVENING MAINLY OVER OUR EASTERN ZONES. SOME OF THESE THUNDERSTORMS MAY BECOME SEVERE. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY A WEAK TROUGH WILL REMAIN AT THE SURFACE ACROSS NORTH DAKOTA WITH A SERIES OF UPPER DISTURBANCES MOVING ACROSS THE STATE. ANY ONE OF THESE COULD TRIGGER ISOLATED SHOWERS AND THUNDERSTORMS THURSDAY INTO SATURDAY. APPEARS SUNDAY THROUGH TUESDAY WILL BE OUR DRIEST DAYS WITH LITTLE OR NO THREAT FOR ANY PRECIPITATION. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE NEEDED TODAY INTO EARLY THIS EVENING. KS
In the hours before
Local storm report, Aug 8, 3:41 PM CDT, 1 hour 53 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>Local storm report, Aug 8, 4:43 PM CDT, 51 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 Bismarck, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 7, 7:30 PM CDT | Severe Thunderstorm Warning | BIS | Dunn | 45 min |
| Aug 7, 8:30 PM CDT | Severe Thunderstorm Warning | BIS | Ward | 30 min |
| Aug 7, 8:46 PM CDT | Severe Thunderstorm Warning | BIS | Mountrail | 28 min |
| Aug 7, 9:08 PM CDT | Severe Thunderstorm Warning | BIS | McLean | 67 min |
| Aug 7, 9:21 PM CDT | Severe Thunderstorm Warning | BIS | Bottineau | 24 min |
| Aug 7, 9:32 PM CDT | Severe Thunderstorm Warning | BIS | McHenry, Ward | 58 min |
| Aug 8, 2:59 AM CDT | Severe Thunderstorm Warning | BIS | Adams, Hettinger | 31 min |
| Aug 8, 7:03 AM CDT | Severe Thunderstorm Warning | BIS | Grant, Sioux | 27 min |
| Aug 8, 2:48 PM CDT | Severe Thunderstorm Warning | BIS | Grant, Morton, Stark | 57 min |
| Aug 8, 2:57 PM CDT | Severe Thunderstorm Warning | BIS | Foster, Stutsman | 30 min |
| Aug 8, 3:45 PM CDT | Severe Thunderstorm Warning | BIS | Grant | 60 min |
| Aug 8, 4:33 PM CDT | Tornado Warning | BIS | Kidder | 27 min |
Nearby
Severe Thunderstorm Warnings in North Dakota, 2007Every severe thunderstorm warning in 2007
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.