Alert archive / Colorado / Tornado Warnings in 1996

Tornado Warning 1, NWS Denver/Boulder, CO

May 22, 1996Phillips County, Colorado

NWS Denver/Boulder, CO issued this tornado warning at May 22, 1996, 6:29 PM MDT for Phillips County, Colorado. It was in force for 31 min. 8 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
May 22, 1996, 6:29 PM MDT (00:29 UTC)
Expired
May 22, 1996, 7:00 PM MDT
In force
31 min
Issued by
NWS Denver/Boulder, CO
Area
Whole counties

County Phillips County, CO

The radar

The Goodland radar (KGLD), 148 km from the middle of the area, began a volume at 00:29 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
May 22, 6:35 PM MDTHail 1.75Holyoke, CO
May 22, 6:40 PM MDTTornado F1Holyoke, CO
May 22, 6:41 PM MDTHail 1.75Holyoke, CO
May 22, 6:47 PM MDTHail 1.75Amhurst, CO
May 22, 6:49 PM MDTHail 2Amhurst, CO
May 22, 6:49 PM MDTHail 2.75Holyoke, CO
May 22, 6:52 PM MDTTornado F0Holyoke, CO
May 22, 6:53 PM MDTHail 2.5Holyoke, 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, 0.5 hours before the alert went out and 109 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 1996-05-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 173 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 1996-05-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -21 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
173 J/kg
Mixed-layer CIN
-30 J/kg
Mixed-layer LCL
3436 m above ground
0-6 km bulk shear
63 kt
0-1 km storm-relative helicity
-21 m²/s²
0-3 km storm-relative helicity
36 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KDEN 230031
TORDEN
COC095-230100-

BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE DENVER CO
629 PM MDT WED MAY 22 1996

THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A TORNADO
WARNING EFFECTIVE UNTIL 700 PM MDT FOR PEOPLE IN THE FOLLOWING
COUNTIES

IN NORTHEASTERN COLORADO
     PHILLIPS

INCLUDING THE FOLLOWING LOCATIONS
     FAIRFIELD...HOLYOKE...PAOLI AND WAGES

AT 629 PM MDT WEATHER SERVICE DOPPLER RADAR INDICATED A POSSIBLE
TORNADO 5 MILES EAST OF PAOLI...OR ABOUT 44 MILES EAST OF STERLING.

THE POSSIBLE TORNADO WAS MOVING SOUTHEAST AT 25 MPH AND WILL MOVE NEAR
HOLYOKE BY 645 PM.

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT.  GET
UNDER A WORKBENCH OR OTHER PIECE OF STURDY FURNITURE.  IF NO
BASEMENT IS AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE
BUILDING IN AN INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET.  USE
BLANKETS OR PILLOWS TO COVER YOUR BODY AND ALWAYS STAY AWAY
FROM WINDOWS.

IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
SUBSTANTIAL SHELTER.  IF NO SHELTER IS AVAILABLE...LIE FLAT IN
THE NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH
YOUR HANDS.

TO REPORT SEVERE WEATHER HAVE THE NEAREST LAW ENFO>RCEMENT
AGENCY RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
FORECAST OFFICE IN DENVER.

KLEYLA

LAT...LON 4048 10211 4049 10250 4073 10250 4074 10221

What forecasters said that day

The local office's own words before this tornado warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Special weather statement, May 22, 1:22 PM MDT, 5 hours 7 minutes before
COZ030-032>050-230600-

SIGNIFICANT WEATHER OUTLOOK FOR NORTHEAST AND NORTH CENTRAL COLORADO
NATIONAL WEATHER SERVICE DENVER CO
120 PM MDT WED MAY 22 1996

THIS OUTLOOK PERTAINS TO THE FOLLOWING COLORADO COUNTIES

ADAMS      ARAPAHOE    BOULDER    CLEAR CREEK    DENVER        DOUGLAS
ELBERT     GILPIN      GRAND      JACKSON        JEFFERSON     LARIMER
LINCOLN    LOGAN       MORGAN     PARK           PHILLIPS      SEDGWICK
SUMMIT     WASHINGTON  WELD

SYNOPSIS:  A WEAK UPPER LEVEL DISTURBANCE WAS MOVING ACROSS NORTH
CENTRAL COLORADO AT THIS TIME WITH SOME THUNDERSTORM DEVELOPMENT EVIDENT
ALONG THE FOOTHILLS AND ALONG THE WYOMING BORDER.  DUE TO THE FASTER
TIMING OF THIS SYSTEM...THUNDERSTORM DEVELOPMENT WILL LIKELY BEGIN
SOONER THAN EARLIER ANTICIPATED IN THE NORTHEAST PLAINS.

CLOUDS AND SHOWERS ARE EXPECTED TO DECREASE IN THE MOUNTAINS AND
FOOTHILLS THIS AFTERNOON AS THIS SYSTEM EXITS THE AREA...HOWEVER A FEW
THUNDERSTORMS ARE STILL POSSIBLE LATER IN THE DAY.

THE STRONGER STORMS WILL DEVELOP NORTH AND EAST OF A SURFACE LOW THAT
HAS DEVELOPED OVER EASTERN ADAMS AND ARAPAHOE COUNTIES.  DUE TO THE
AVAILABILITY OF BETTER LOW LEVEL MOISTURE IN THESE AREAS SCATTERED
THUNDERSTORMS ARE EXPECTED TO DEVELOP...MAINLY EAST OF THE URBAN
CORRIDOR AFTER 2 PM.

A FEW STRONG THUNDERSTORMS ARE POSSIBLE EAST OF A LINE EXTENDING FROM
BYERS NORTH TO THE WYOMING BORDER.  COUNTIES INCLUDED IN THIS AREA ARE:
EASTERN ADAMS...EASTERN ARAPAHOE...MORGAN...EASTERN WELD... AND WESTERN
WASHINGTON COUNTIES.  BRIEF HEAVY RAIN...SMALL HAIL AND GUSTY WINDS TO
50 MPH ARE POSSIBLE WITH SOME OF THESE STORMS.

AS THIS SYSTEM CONTINUES EAST...A FEW SEVERE STORMS ARE POSSIBLE
BY 3 PM IN EASTERN WASHINGTON...LOGAN...PHILLIPS AND SEDGEWICK
COUNTIES.  HEAVY RAIN...LARGE HAIL AND GUSTY WINDS IN EXCESS OF 58 MPH
ARE THE PRIMARY THREATS OF THESE STORM IF THEY BECOME SEVERE.

SPOTTER ACTIVATION MAY BE NEEDED IN THE FOLLOWING COUNTIES
AF(TER 230 PM:  LOGAN...MORGAN...EASTERN WASHINGTON...PHILLIPS
AND SEDGEWICK COUNTIES.

FMC
Special weather statement, May 22, 2:59 PM MDT, 3 hours 30 minutes before
COZ042-044-048>050-222200-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
255 PM MDT WED MAY 22 1996

A TORNADO WATCH HAS BEEN ISSUED FOR A PORTION OF NORTHEASTERN COLORADO
UNTIL 900PM MDT.

A WATCH MEANS CONDITIONS ARE FAVORABLE FOR THE DEVELPMENT OF SEVERE
THUNDERSTORMS AND POSSIBLY TORNADOES.  COUNTIES INCLUDED IN THE WATCH
AREA ARE:  LOGAN...MORGAN...PHILLIPS...SEDGEWICK...NORTHERN WASHINGTON
AND EASTERN WELD COUNTIES.

VERY MOIST AND UNSTABLE LOW LEVEL AIRMASS WILL COMBINE WITH AN UPPER
LEVEL DISTURBANCE MOVNING INTO THE AREA TO TRIGGER SCATTERED
THUNDERSTORMS IN THE WATCH AREA LATER THIS AFTERNOON AND EVENING.

THE GREATEST THREAT EXTENDS FORT MORGAN TO THE WYOMING BORDER
EASTWARD TO THE KANSAS BORDER.

A SEVERE THUNDERSTORM HAD ALREADY DEVELOPED NORTHEAST OF CHEYENNE
WYOMING AND CONTINUED TO INTENIFY.  THESE STORMS ARE EXPECTED TO DEVELOP
AND PROPOGATE INTO NORTHEAST COLORADO LATER THIS AFTERNOON AND EVENING.

A FEW OF THESE STORM MAY SPAWN TORNADOES.  LARGE HAIL...GUSTY WINDS
IN EXCESS OF 60 MPH AND HEAVY RAIN ARE ALSO POSSIBLE WITH THESE
STORMS.  SEEK SHELTER IF A STORM APPROACHES YOUR AREA AND REPORT ANY
SEVERE WEATHER TO THE NEAREST LAW ENFORECMENT AGENCY.

LAT...LON 4060 10270 4061 10299 4083 10299 4083 10270
Special weather statement, May 22, 3:02 PM MDT, 3 hours 27 minutes before
COZ042-044-048>050-222200-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO...CORRECTED
300 PM MDT WED MAY 22 1996

.CORRECTED TO INCLUDE SPOTTER ACTIVATION.

A TORNADO WATCH HAS BEEN ISSUED FOR A PORTION OF NORTHEASTERN COLORADO
UNTIL 900PM MDT.

A WATCH MEANS CONDITIONS ARE FAVORABLE FOR THE DEVELPMENT OF SEVERE
THUNDERSTORMS AND POSSIBLY TORNADOES.  COUNTIES INCLUDED IN THE WATCH
AREA ARE:  LOGAN...MORGAN...PHILLIPS...SEDGEWICK...NORTHERN WASHINGTON
AND EASTERN WELD COUNTIES.

VERY MOIST AND UNSTABLE LOW LEVEL AIRMASS WILL COMBINE WITH AN UPPER
LEVEL DISTURBANCE MOVNING INTO THE AREA TO TRIGGER SCATTERED
THUNDERSTORMS IN THE WATCH AREA LATER THIS AFTERNOON AND EVENING.

THE GREATEST THREAT EXTENDS FORT MORGAN TO THE WYOMING BORDER
EASTWARD TO THE KANSAS BORDER.  SPOTTER ACTIVATION WILL BE NECESSARY IN
THOSE AREAS THIS AFTERNOON AND EVENING.

A SEVERE THUNDERSTORM HAD ALREADY DEVELOPED NORTHEAST OF CHEYENNE
WYOMING AND CONTINUED TO INTENIFY.  THESE STORMS ARE EXPECTED TO DEVELOP
AND PROPOGATE INTO NORTHEAST COLORADO LATER THIS AFTERNOON AND EVENING.

A FEW OF THESE STORM MAY SPAWN TORNADOES.  LARGE HAIL...GUSTY WINDS
IN EXCESS OF 60 MPH AND HEAVY RAIN ARE ALSO POSSIBLE WITH THESE
STORMS.  SEEK SHELTER IF A STORM APPROACHES YOUR AREA AND REPORT ANY
SEVERE WEATHER TO THE NEAREST LAW ENFORECMENT AGENCY.

FMC

LAT...LON 4060 10270 4061 10299 4083 10299 4083 10270
Special weather statement, May 22, 3:46 PM MDT, 2 hours 43 minutes before
COZ042-044-048>050-230100-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
345 PM MDT WED MAY 22 1996

...A TORNADO WATCH REMAINS IN EFFECT FOR A PORTION OF NORTHEASTERN
COLORADO UNTIL 900PM MDT...

A WATCH MEANS CONDITIONS ARE FAVORABLE FOR THE DEVELOPMENT OF SEVERE
THUNDERSTORMS AND POSSIBLY TORNADOES.  COUNTIES INCLUDED IN THE WATCH
AREA ARE:  LOGAN...MORGAN...PHILLIPS...SEDGEWICK...NORTHERN WASHINGTON
AND EASTERN WELD COUNTIES.  A FEW OF THE TOWNS IN THE WATCH AREA
INCLUDE: AKRON...FORT MORGAN...HOLYOKE...STERLING AND JULESBURG.

VERY MOIST AND UNSTABLE LOW LEVEL AIRMASS WILL COMBINE WITH AN UPPER
LEVEL DISTURBANCE MOVING INTO THE AREA TO TRIGGER SCATTERED
THUNDERSTORMS IN THE WATCH AREA THE REST OF THIS AFTERNOON AND
EVENING.

A SEVERE THUNDERSTORM LOCATED 45 MILES SOUTH OF SCOTTBLUFF NEBRASKA
CONTINUED TO MOVE SOUTHEAST.  THIS STORM MAY MAKE ITS WAY INTO NORTHERN
LOGAN AND SEDGEWICK COUNTIES WITHIN THE NEXT HOUR.

A FEW OF THESE STORM MAY SPAWN TORNADOES.  LARGE HAIL...GUSTY WINDS
IN EXCESS OF 60 MPH AND DANGEROUS LIGHTNING AND HEAVY RAIN ARE ALSO
POSSIBLE WITH THESE STORMS.  SEEK SHELTER IF A STORM APPROACHES YOUR
AREA AND REPORT ANY SEVERE WEATHER TO THE NEAREST LAW ENFORECMENT
AGENCY.

FMC

LAT...LON 4060 10270 4061 10299 4083 10299 4083 10270

The office that day

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

IssuedProductOfficeCountiesLasted
May 22, 6:04 PM MDTSevere Thunderstorm WarningBOUPhillips56 min
May 22, 6:57 PM MDTTornado WarningBOUPhillips33 min
May 22, 11:06 PM MDTSevere Thunderstorm WarningBOUJefferson39 min
May 22, 11:23 PM MDTSevere Thunderstorm WarningBOUAdams, Denver52 min
May 22, 11:47 PM MDTSevere Thunderstorm WarningBOUAdams, Denver, Weld43 min
May 23, 12:41 AM MDTSevere Thunderstorm WarningBOUAdams, Morgan, Weld49 min
May 23, 1:44 AM MDTSevere Thunderstorm WarningBOUMorgan, Washington31 min
May 23, 5:00 PM MDTTornado WarningBOUArapahoe, Elbert45 min
May 23, 5:00 PM MDTTornado WarningBOUAdams45 min
May 23, 5:40 PM MDTTornado WarningBOUAdams, Arapahoe, Washington60 min
May 23, 5:40 PM MDTTornado WarningBOUElbert60 min

Nearby

Tornado Warnings in Colorado, 1996Every tornado warning in 1996Tornadoes in 1996

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.