Alert archive / Colorado / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 83, NWS Denver/Boulder, CO

July 22, 2000Lincoln County, Colorado

NWS Denver/Boulder, CO issued this severe thunderstorm warning at Jul 22, 2000, 12:19 AM MDT for Lincoln County, Colorado. It was in force for 41 min. 5 reports came from inside the area while it was in force.

The area

The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties, with what was reported inside it.

The facts

Issued
Jul 22, 2000, 12:19 AM MDT (06:19 UTC)
Expired
Jul 22, 2000, 1:00 AM MDT
In force
41 min
Issued by
NWS Denver/Boulder, CO
Area
Whole counties; the outline is the Mesonet’s reconstruction

County Lincoln County, CO

The radar

The Denver radar (KFTG), 112 km from the middle of the area, began a volume at 06:20 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

TimeReportWhereRemark
Jul 22, 12:30 AM MDTHail 1Limon, CO
Jul 22, 12:34 AM MDTHail 1.5Genoa, CO
Jul 22, 12:43 AM MDTHail 1Genoa, CO
Jul 22, 12:45 AM MDTHail 1.75Genoa, CO
Jul 22, 12:57 AM MDTHail 1Genoa, CO

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 nearest sounding before it

Denver, CO (KDNR), launched 00:00Z, 6.3 hours before the alert went out and 67 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-pSkew-T log-p diagram, Denver, CO at 00:00Z on 2000-07-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 941 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Denver, CO at 00:00Z on 2000-07-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -69 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
941 J/kg
Mixed-layer CIN
-38 J/kg
Mixed-layer LCL
3104 m above ground
0-6 km bulk shear
39 kt
0-1 km storm-relative helicity
-69 m²/s²
0-3 km storm-relative helicity
-19 m²/s²
Significant tornado parameter
0.0
Supercell composite
-1.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

589 
WUUS55 KBOU 220620
SVRDEN
COC073-220700-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE DENVER CO
1219 AM MDT SAT JUL 22 2000

THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHEASTERN LINCOLN COUNTY IN EAST CENTRAL COLORADO

* UNTIL 100 AM MDT

* AT 1219 AM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 5 MILES NORTH OF GENOA...OR ABOUT 11 MILES     
  NORTHEAST OF LIMON...MOVING SOUTHEAST AT 20 MPH.

LOCATIONS IN THE WARNING INCLUDE...BUT ARE NOT LIMITED TO...GENOA AND
ARRIBA.

WIND GUSTS UP TO 70 MPH AND HAIL UP TO GOLF BALL SIZE ARE POSSIBLE 
WITH THIS STORM.

REPORT SEVERE WEATHER TO THE NEAREST LAW ENFORCEMENT AGENCY. THEY
WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST
OFFICE IN DENVER.

LAT...LON 3938 10361 3912 10346 3911 10317 3926 10316
          3946 10350

GIMMESTAD

The office that day

Everything else NWS Denver/Boulder, CO issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 21, 6:01 PM MDTTornado WarningBOUMorgan, Weld44 min
Jul 21, 6:17 PM MDTTornado WarningBOUWashington43 min
Jul 21, 6:27 PM MDTTornado WarningBOUMorgan, Weld48 min
Jul 21, 6:50 PM MDTTornado WarningBOUWashington25 min
Jul 21, 7:04 PM MDTSevere Thunderstorm WarningBOUAdams, Morgan41 min
Jul 21, 7:18 PM MDTTornado WarningBOUWashington27 min
Jul 21, 7:21 PM MDTSevere Thunderstorm WarningBOUSedgwick39 min
Jul 21, 7:45 PM MDTSevere Thunderstorm WarningBOULincoln, Washington45 min
Jul 21, 7:51 PM MDTSevere Thunderstorm WarningBOUPhillips, Sedgwick39 min
Jul 21, 11:44 PM MDTSevere Thunderstorm WarningBOULincoln46 min
Jul 22, 12:56 AM MDTSevere Thunderstorm WarningBOULincoln34 min
Jul 22, 1:08 AM MDTSevere Thunderstorm WarningBOUAdams, Arapahoe37 min
Jul 22, 1:36 AM MDTSevere Thunderstorm WarningBOUArapahoe, Elbert39 min
Jul 22, 2:12 AM MDTSevere Thunderstorm WarningBOUElbert, Lincoln33 min
Jul 22, 2:45 AM MDTSevere Thunderstorm WarningBOULincoln45 min
Jul 22, 5:49 PM MDTSevere Thunderstorm WarningBOUWeld41 min

Nearby

Severe Thunderstorm Warnings in Colorado, 2000Every 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.