Alert archive / North Dakota / Severe Thunderstorm Warnings in 2007
Severe Thunderstorm Warning 234, NWS Bismarck, ND
NWS Bismarck, ND issued this severe thunderstorm warning at Jul 23, 2007, 11:15 PM CDT for Rolette County, North Dakota. It was in force for 60 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 23, 2007, 11:15 PM CDT (04:15 UTC)
- Expired
- Jul 24, 2007, 12:15 AM CDT
- In force
- 60 min
- Issued by
- NWS Bismarck, ND
- Area
- Counties, with a storm outline in the text
County Rolette County, ND
The nearest sounding before it
Bismarck Municip, ND (KBIS), launched 00:00Z, 4.3 hours before the alert went out and 232 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
- 3381 J/kg
- Mixed-layer CIN
- -21 J/kg
- Mixed-layer LCL
- 2772 m above ground
- 0-6 km bulk shear
- 13 kt
- 0-1 km storm-relative helicity
- 55 m²/s²
- 0-3 km storm-relative helicity
- 226 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 12.7
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 Jul 23, 3:40 PM CDT, 7 hours 35 minutes earlier.
Area forecast discussion, Jul 23, 3:40 PM CDT, 7 hours 35 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>Hazardous weather outlook, Jul 23, 5:54 AM CDT, 17 hours 21 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE BISMARCK ND 554 AM CDT MON JUL 23 2007 NDZ001>005-009>013-019>023-025-034-035-241100- DIVIDE-BURKE-RENVILLE-BOTTINEAU-ROLETTE-WILLIAMS-MOUNTRAIL-WARD- MCHENRY-PIERCE-MERCER-OLIVER-MCLEAN-SHERIDAN-WELLS-FOSTER-MORTON- BURLEIGH- 554 AM CDT MON JUL 23 2007 /454 AM MDT MON JUL 23 2007/ THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTH CENTRAL NORTH DAKOTA...NORTHWEST NORTH DAKOTA...SOUTH CENTRAL NORTH DAKOTA AND SOUTHEAST NORTH DAKOTA. .DAY ONE...TODAY AND TONIGHT HOT AND HUMID WEATHER WILL CONTINUE TODAY. HEAT INDEX VALUES WILL RANGE FROM 95 TO NEAR 103 DURING THE AFTERNOON AND EARLY EVENING HOURS. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY HOT AND HUMID WEATHER CONTINUES ON TUESDAY. HEAT RELATED ADVISORIES MAY BE ISSUED. THERE IS A CHANCE OF THUNDERSTORMS WEDNESDAY AFTERNOON AND WEDNESDAY NIGHT. SOME OF THESE STORMS MAY BE SEVERE. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED. NDZ036-037-045>048-050-051-241100- KIDDER-STUTSMAN-SIOUX-EMMONS-LOGAN-LA MOURE-MCINTOSH-DICKEY- 554 AM CDT MON JUL 23 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTH CENTRAL NORTH DAKOTA AND SOUTHEAST NORTH DAKOTA. .DAY ONE...TODAY AND TONIGHT A HEAT ADVISORY HAS BEEN ISSUED FOR FAR SOUTH CENTRAL AND PORTIONS OF SOUTHEASTERN NORTH DAKOTA TODAY. TEMPERATURES IN THE 90S AND DEWPOINT VALUES AROUND 70 WILL CREATE A HEAT INDEX AROUND 105 THIS AFTERNOON. USE CAUTION AS THIS DEGREE OF HEAT CAN HAVE ADVERSE EFFECTS ON YOUR PHYSICAL HEALTH. CONDITIONS WILL IMPROVE THIS EVENING AS TEMPERATURES COOL TOWARDS SUNDOWN. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY ANOTHER HOT AND HUMID DAY CAN BE EXPECTED ON TUESDAY. ADDITIONAL ADVISORIES MAY BE ISSUED. THERE IS A CHANCE OF THUNDERSTORMS WEDNESDAY AFTERNOON AND WEDNESDAY NIGHT. SOME OF THESE STORMS MAY BE SEVERE. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED. NDZ040-043-241100- SLOPE-BOWMAN- 454 AM MDT MON JUL 23 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHWEST NORTH DAKOTA. .DAY ONE...TODAY AND TONIGHT VERY HOT WEATHER WILL CONTINUE TODAY. A FIRE WEATHER WATCH HAS BEEN ISSUED FOR BOWMAN AND SLOPE COUNTIES DUE TO EXPECTED LOW RELATIVE HUMIDITIES AND WINDS UP TO 20 MPH THIS AFTERNOON...IN COMBINATION WITH FUELS CURING OVER THE PAST SEVERAL DAYS. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY HOT AND DRY WEATHER CONTINUES TUESDAY...ALONG WITH SOUTHEAST WINDS OF 15 TO 30 MPH. THUS ANOTHER FIRE WEATHER WATCH OR RED FLAG WARNING IS LIKELY. THERE IS A CHANCE OF THUNDERSTORMS WEDNESDAY AFTERNOON AND WEDNESDAY NIGHT. SOME OF THESE STORMS MAY BE SEVERE. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED. NDZ017-018-031>033-041-042-044-241100- MCKENZIE-DUNN-GOLDEN VALLEY-BILLINGS-STARK-HETTINGER-GRANT-ADAMS- 554 AM CDT MON JUL 23 2007 /454 AM MDT MON JUL 23 2007/ THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHWEST NORTH DAKOTA...SOUTH CENTRAL NORTH DAKOTA AND SOUTHWEST NORTH DAKOTA. .DAY ONE...TODAY AND TONIGHT HOT AND HUMID WEATHER WILL CONTINUE TODAY. HEAT INDEX VALUES WILL RANGE FROM 95 TO NEAR 104 DURING THE AFTERNOON AND EARLY EVENING HOURS. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY HOT AND HUMID WEATHER CONTINUES ON TUESDAY. HEAT RELATED ADVISORIES MAY BE ISSUED. IN ADDITION...A FIRE WEATHER WATCH OR RED FLAG WARNING WILL LIKELY BE NEEDED OVER PORTIONS OF WEST CENTRAL AND SOUTHWEST NORTH DAKOTA. LOW RELATIVE HUMIDITIES AND WINDS OF 15 TO 30 MPH WILL COMBINE WITH DRY RANGELAND TO CREATE CRITICAL FIRE WEATHER CONDITIONS. THERE IS A CHANCE OF THUNDERSTORMS WEDNESDAY AFTERNOON AND WEDNESDAY NIGHT. SOME OF THESE STORMS MAY BE SEVERE. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED. NH
The office that day
Everything else NWS Bismarck, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 24, 4:34 AM CDT | Heat Advisory | BIS | Adams, Billings, Bottineau, Bowman, Burke, Burleigh and 26 more | 16 hr |
| Jul 24, 5:19 AM CDT | Red Flag Warning | BIS | Adams, Billings, Bowman, Dunn, Golden Valley, Hettinger and 3 more | 17 hr |
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.