Alert archive / Wyoming / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 161, NWS Rapid City, SD

July 10, 2000Campbell County, Crook County, Weston County, Wyoming

NWS Rapid City, SD issued this severe thunderstorm warning at Jul 10, 2000, 7:47 PM MDT for Campbell County, Crook County, Weston County, Wyoming. It was in force for 58 min. 3 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued: Jul 10, 2000, 7:47 PM MDT (01:47 UTC)
Expired: Jul 10, 2000, 8:45 PM MDT
In force: 58 min
Issued by: NWS Rapid City, SD
Area: Whole counties; the outline is the Mesonet’s reconstruction

Counties Campbell County, WY, Crook County, WY, Weston County, WY

The radar

The Rapid City radar (KUDX), 165 km from the middle of the area, began a volume at 01:48 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.

What was reported inside it

Time	Report	Where	Remark
Jul 10, 7:50 PM MDT	Hail 0.75	Wright, WY
Jul 10, 7:50 PM MDT	Hail 0.75	Upton, WY
Jul 10, 8:30 PM MDT	Thunderstorm Wind	New Haven, WY	Several hay feeders were blown over, and large tree branches were broken off trees.

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

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, 4:45 PM MDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Rapid City, SD (KUNR), launched 00:00Z, 1.8 hours before the alert went out and 162 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: 1178 J/kg
Mixed-layer CIN: -55 J/kg
Mixed-layer LCL: 1351 m above ground
0-6 km bulk shear: 46 kt
0-1 km storm-relative helicity: 45 m²/s²
0-3 km storm-relative helicity: 81 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 2.7

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 Rapid City, SD wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 10, 1:30 PM MDT, 6 hours 17 minutes earlier.

Area forecast discussion, Jul 10, 1:30 PM MDT, 6 hours 17 minutes before

AREA FORECAST DISCUSSION FOR WESTERN SD AND NORTHEASTERN WY
NATIONAL WEATHER SERVICE RAPID CITY SD
130 PM MDT MON JUL 10 2000

...ONCE AGAIN HEAVY RAINS WILL BE THE MAIN THREAT THIS EVENING AND
TONIGHT...

AT 19Z...SFC IN CENT MT W MOIST S-SE FLW OVR REGION.  SHWS/TSTMS IN
ERN ZONES ASSCD W/MORNING S/W MVG E.  OTHER TSTMS BEGINING TO DVLP
ACRS NRN HILLS.  LI'S -8 TO -12 ACRS SE MT/FAR NE WY/AND NRN HILLS
WITH THETA-E RIDGE ACRS THIS REGION.  TSTMS WL CONT TO DVLP THRU
AFT...W SLIGHT CHC OF SVR HAIL IN A FEW.  THIS ACTIVITY AHEAD OF
UPPER S/W WHICH WL BRING A MORE WIDESPREAD PCPN OUTBREAK TONIGHT.

FOR TONIGHT...STG 500MB-700MB S/W MVS FM CENT WY INTO WRN SD OVR
NITE...PROVIDING A DEEP LAYER OF LIFT ACRS THE REGION...ESP FM NE WY
THRU NW SD.  SFC LOW FCST FM GCC-RAP-SFD. THETA-E ADV IN 850-700MB
LAYER FM 00Z THRU ARD 09Z QUITE STG.  LLVL JET INC ACRS ERN HALF OF
FA ALSO. PCPBL H20 1.1-1.3 INCHES ACROSS AREA.  SHLD HAVE WIDESPREAD
TSTMS W/BEST BET OF HVY RAIN ALONG AND NORTH OF SFC LOW TRACK.

ON TUES...S/W SLOWLY MVS ACRS ERN 1/2 FA...SHWS AND TSTMS SHLD CONT
OVR ERN 1/2 FA IN AM.  BEHIND S/W PCPBL H20 STILL .9 TO 1.1 INCHES
AND LI'S -4 TO -6 SO WL GO W/CHC OF TSTMS IN THE AFT IN WRN SD...WL
GO DRY IN NE WY.

TUES NITE AND WED...500MB PATTERN QUIET...BUT NICE 700MB S/W MVG
ACRS NRN WY INTO ERN WY BY WED AM.  THIS SHLD PROD SOME SCT TSTMS
ACRS NE WY AND FAR WRN SD BY LATE TUE NIGHT AND ACRS WRN SD...ESP
OVR SRN ZONES ON WED.  PCPBL H20 STILL ARD 1.0 TO 1.1 INCHES AND
LI'S -4 TO -6.

IN THE EXTENDED...UPPER LEVEL RIDGE CONTS THROUGH WEEKEND WITH WRM
TEMPS ALOFT.  WK S/W'S MOVING ACRS NRN PORTION OF RIDGE WL BRI6NG A
DAILY CHC OF TSTMS. THUS...WL CONT W/WARM AND CHC OF TSTMS THRU THE
PERIOD.

.UNR...NONE.

In the hours before

Local storm report, Jul 10, 2:28 PM MDT, 5 hours 19 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE RAPID CITY SD
228 PM MDT MON JUL 10 2000

TIME(MDT)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0227 PM    2 NE DEADWOOD             SD   .75 INCH HAIL
07/10/00   LAWRENCE                       REPORTED BY STORM
                                          SPOTTER.

Bunkers
N

Local storm report, Jul 10, 3:03 PM MDT, 4 hours 44 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE RAPID CITY SD
303 PM MDT MON JUL 10 2000

TIME(MDT)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0254 PM    2 NE DEADWOOD             SD   .75 INCH HAIL
07/10/00   LAWRENCE                       REPORTED BY STORM
                                          SPOTTER.

Bunkers
N

Local storm report, Jul 10, 3:07 PM MDT, 4 hours 40 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE RAPID CITY SD
307 PM MDT MON JUL 10 2000

TIME(MDT)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0307 PM    2 NE DEADWOOD             SD   .75 INCH HAIL
07/10/00   LAWRENCE                       REPORTED BY STORM
                                          SPOTTER. STATIONARY
                                          SUPERCELL.

BunkerGs
N

Local storm report, Jul 10, 3:15 PM MDT, 4 hours 32 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE RAPID CITY SD
315 PM MDT MON JUL 10 2000

TIME(MDT)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0310 PM    1 N DEADWOOD              SD   1 INCH HAIL
07/10/00   LAWRENCE                       REPORTED BY STORM
                                          SPOTTER.

0314 PM    2 NE DEADWOOD             SD   .88 INCH HAIL
07/10/00   LAWRE8NCE                       REPORTED BY STORM
                                          SPOTTER. ONE IINCH OF
                                          RAIN.

Bunkers
N

Local storm report, Jul 10, 3:25 PM MDT, 4 hours 22 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE RAPID CITY SD
325 PM MDT MON JUL 10 2000

TIME(MDT)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0314 PM    DEADWOOD                  SD   .88 INCH HAIL
07/10/00   LAWRENCE                       REPORTED BY LAW
                                          ENFORCEMENT OFFICIAL.

0324 PM    4 NE DEADWOOD             SD   .75 INCH HAIL
07/10/00   LAWRENCE                       REPORTED BY STORM
                                          SPOTTER.

Bunkers
N

Local storm report, Jul 10, 5:53 PM MDT, 1 hour 54 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 Rapid City, SD issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 10, 8:16 PM MDT	Severe Thunderstorm Warning	UNR	Fall River	44 min
Jul 10, 6:04 PM MDT	Severe Thunderstorm Warning	UNR	Weston	56 min
Jul 10, 8:45 PM MDT	Severe Thunderstorm Warning	UNR	Crook, Weston	45 min

Nearby

Severe Thunderstorm Warnings in Wyoming, 2000 Every severe thunderstorm warning in 2000

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.