Alert archive / Colorado / Severe Thunderstorm Warnings in 1999

Severe Thunderstorm Warning 50, NWS Pueblo, CO

June 23, 1999Crowley County, Otero County, Colorado

NWS Pueblo, CO issued this severe thunderstorm warning at Jun 23, 1999, 11:26 PM MDT for Crowley County, Otero County, Colorado. It was in force for 29 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
Jun 23, 1999, 11:26 PM MDT (05:26 UTC)
Expired
Jun 23, 1999, 11:55 PM MDT
In force
29 min
Issued by
NWS Pueblo, CO
Area
Whole counties

Counties Crowley County, CO, Otero County, CO

The radar

The Pueblo radar (KPUX), 54 km from the middle of the area, began a volume at 05:26 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 nearest sounding before it

Denver, CO (KDNR), launched 00:00Z, 5.4 hours before the alert went out and 200 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 1999-06-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 670 joules per kilogram.LCLEL10008507005003002001001 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 1999-06-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -18 square meters per square second.1939Sfc1 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
670 J/kg
Mixed-layer CIN
-14 J/kg
Mixed-layer LCL
2873 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
-18 m²/s²
0-3 km storm-relative helicity
57 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.5

Open this sounding in Storm Lab

The text

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

524 
WUUS1 KPUB 240522 RRA
SVRPUB
COC025-089-240555-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PUEBLO CO
1126 PM MDT WED JUN 23 1999

THE NATIONAL WEATHER SERVICE IN PUEBLO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EXTREME SOUTHERN CROWLEY COUNTY IN SOUTHEASTERN COLORADO
  NORTHERN OTERO COUNTY IN SOUTHEASTERN COLORADO

* UNTIL 1155 PM MDT

* AT 1120 PM MDT...RADAR SHOWED SEVERE STORMS 5 MILES SOUTH OF ORDWAY
  AND 5 MILES SOUTH OF FOWLER OR 20 MILES WEST OF LA JUNTA...MOVING
  EAST AT 5 MPH.

SOME LOCATIONS AFFECTED WILL BE CROWLEY AND ORDWAY...AROUND 1130 PM
MDT...FOWLER AND MANZANOLA BY 1130 PM MDT...OLNEY SPRINGS BY 1135
PM.

AT THIS TIME...THE MOST LIKELY SEVERE WEATHER WITH THESE STORMS IS
LARGE HAIL AND DAMAGING WINDS.  IF YOU ARE IN OR CLOSE TO THE
WARNED AREA GO TO SAFETY IN A SMALL INTERIOR ROOM AWAY FROM WINDOWS.
A BASEMENT OFFERS THE BEST PROTECTION.  SEVERE STORMS CAN PRODUCE
TORNADOES WITH LITTLE WARNING.

KT/RMG

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 Pueblo, CO wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 23, 2:00 PM MDT, 9 hours 26 minutes earlier.

Area forecast discussion, Jun 23, 2:00 PM MDT, 9 hours 26 minutes before
SOUTH CENTRAL AND SOUTHEAST COLORADO AREA FORECAST8 DISCUSSION
NATIONAL WEATHER SERVICE PUEBLO COLORADO
200 PM MDT WED JUN 23 1999

FORECAST CHALLENGE FOR THE SHORT TERM IS THE POTENTIAL FOR
THUNDERSTORMS IN THE CWFA THIS EVENING.

500MB RIDGE CENTERED OVER SOUTHWEST US WITH LIGHT WESTERLY FLOW AT
MOST LEVELS JUST ABOVE THE SURFACE. PROFILER SHOWS EASTERLY FLOW
IN FIRST 2 GATES AND MODELED SOUNDINGS SUGGEST THAT WILL LINGER
INTO THE EVENING. WEAK MID LEVEL SHORTWAVE WILL EXIT THE REGION BY
00Z BUT THE QUESTION REMAINS AS TO WHETHER THERE IS ENOUGH STRENGTH
IN THE LOW LEVEL FLOW TO PRODUCE -TSRA. SHORT WAVE MOVES OUT OF CWFA
TONIGHT LEAVING THURSDAY WITH LIGHT WINDS ALOFT AND A SIMILAR LOW
LEVEL PATTERN AND SIMILAR TSTM COVERAGE.

LOOKS LIKE THE SUBSIDENCE ASSOCIATED WITH THE UPPER RIDGE AND THE
WARM AIR ALOFT SHOULD KEEP THINGS QUIET OVER THE MOUNTAIN AREAS
AND ADJACENT PLAINS TONIGHT. STILL SOME CONCERN OVER THE PIKES PEAK
REGION WHERE SOME CU FORMED AT MIDDAY. CU HAS BEEN FLAT WITH
VERY LITTLE UPWARD GROWTH. BEST INSTABILITY REMAINS ALONG EASTERN
BORDER BUT THAT AREA HAS BEEN SLOW TO WARM UP AFTER THIS MORNINGS LOW
CLOUDS. EXPECT TSTMS TO START FORMING OVER EXTREME SOUTHEAST BACA AND
EAST PROWERS SOON THEN END AFTER SUNSET.

EXTENDED PACKAGE
PATTERN REMAINS THE SAME ALOFT THROUGH FRIDAY WITH RIDGE FLATTENING
SOME SATURDAY. WILL KEEP SATURDAY DRY IN THE EXTENDED AND KEEP
CHANCE IN MOST AREAS FOR SUN AND MON AS SOUTHWvEST FLOW RETURNS. MRF
SEEMS TO WANT TO KEEP THE STORM TRACK WELL TO OUR NORTH SO PRECIP
PROBABILITIES WILL BE NEAR SEASONAL NORMALS.

.PUB...NONE.

FORTUNE

In the hours before

Special weather statement, Jun 23, 11:02 PM MDT, 24 minutes before
COZ076-078>080-240605-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PUEBLO CO
1102 PM MDT WED JUN 23 1999

...SEVERE THUNDERSTORM WATCH FOR PORTIONS OF SOUTHEAST COLORADO
ALLOWED TO EXPIRE...

THE SEVERE THUNDERSTORM WATCH IN EFFECT FOR CROWLEY...OTERO...BENT...
KIOWA AND PROWERS COUNTIES EXPIRED AT 11 PM MDT. HOWEVER...STRONG
THUNDERSTORMS CAPABLE OF PRODUCING FREEQUENT LIGHTNING...SMALL HAIL
AND TORRENTIAL RAINFALL ARE STILL POSSIBLE OVER THE SOUTHEASTERN
COLORADO PLAINS THROUGH 3 AM MDT.

PETERSEN
Special weather statement, Jun 23, 11:02 PM MDT, 24 minutes before
COZ076-078>080-240605-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PUEBLO CO
1102 PM MDT WED JUN 23 1999

...SEVERE THUNDERSTORM WATCH FOR PORTIONS OF SOUTHEAST COLORADO
ALLOWED TO EXPIRE...

THE SEVERE THUNDERSTORM WATCH IN EFFECT FOR CROWLEY...OTERO...BENT...
KIOWA AND PROWERS COUNTIES EXPIRED AT 11 PM MDT. HOWEVER...STRONG
THUNDERSTORMS CAPABLE OF PRODUCING FREEQUENT LIGHTNING...SMALL HAIL
AND TORRENTIAL RAINFALL ARE STILL POSSIBLE OVER THE SOUTHEASTERN
COLORADO PLAINS THROUGH 3 AM MDT.

PETERSEN

The office that day

Everything else NWS Pueblo, CO issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 23, 6:05 PM MDTSevere Thunderstorm WarningPUBKiowa60 min
Jun 23, 9:20 PM MDTSevere Thunderstorm WarningPUBEl Paso60 min

Nearby

Severe Thunderstorm Warnings in Colorado, 1999Every severe thunderstorm warning in 1999

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.