Alert archive / Colorado / Severe Thunderstorm Warnings in 1987
Severe Thunderstorm Warning 1, NWS Pueblo, CO
NWS Pueblo, CO issued this severe thunderstorm warning at May 20, 1987, 6:51 PM MDT for Pueblo County, Colorado. It was in force for 39 min.
The area
The counties it named.
The facts
- Issued
- May 20, 1987, 6:51 PM MDT (00:51 UTC)
- Expired
- May 20, 1987, 7:30 PM MDT
- In force
- 39 min
- Issued by
- NWS Pueblo, CO
- Area
- Whole counties
County Pueblo County, CO
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
The nearest sounding before it
Denver, CO (KDEN), launched 00:00Z, 0.9 hours before the alert went out and 219 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
- 349 J/kg
- Mixed-layer CIN
- -40 J/kg
- Mixed-layer LCL
- 886 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 19 m²/s²
- 0-3 km storm-relative helicity
- 78 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 1.6
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KPUB 210051 SVRPUB COC101-210130- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE PUEBLO CO 651 PM MDT WED MAY 20 1987 THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 730 PM MDT FOR PEOPLE IN THE FOLLOWING COUNTY OF SOUTHEAST COLORADO...NORTH CENTRAL PUEBLO THIS WARNING INCLUDES THE FOLLOWING TOWNS AND CITIES... PUEBLO AND NORTHERN AND NORTHEAST PUEBLO COUNTY. . AN EXTREMELY HEAVY THUNDERSTORM WAS OVER THE CITY OF PUEBLO WITH OTHER EXTREMELY HEAVY STORMS TO THE NORTH AND NORTHEAST OF PUEBLO. ONE-HALF INCH TO 3/4 INCH HAIL HAS BEEN REPORTED WITH THESE THUNDERSTORMS. HAIL WAS REPORTED TO BE UP TO A DEPTH OF 1 AND ONE HALF IN JUST SOUTH OF PUEBLO MEMORIAL AIRPORT. THE STORMS WERE MOVING SLOWLY EAST 5 MILES AN HOUR. IF SEVERE WEATHER APPROACHES YOUR AREA...GO TO A STURDY SHELTER AWAY FROM CREEK BEDS AND OTHER LOW AREAS PRONE TO FLOODING. REMEMBER...A SEVER E THUNDERSTORM CAN PRODUCE LARGE HAIL...DAMAGING WINDS OF OVER 60 MPH...DEADLY LIGHTNING...AND HEAVY RAINS THAT CAN QUICKLY FLOOD A LOW LYING AREA.
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.
In the hours before
Special weather statement, May 20, 1:31 PM MDT, 5 hours 20 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE COLORADO SPRINGS CO 125 PM MDT WED MAY 20 1987 ...THUNDERSTORMS SPITTING HAIL IN THE PIKES PEAK REGION... AT 120 PM THIS WEDNESDAY AFTERNOON THUNDERSTORMS...SOME HEAVY...WERE OVER THE NORTH AND WEST PART OF EL PASO COUNTY IN COLORADO. THE STRONGEST STORM WAS LOCATED OVER THE BLACK FOREST ABOUT 12 MILES NORTHEAST OF COLORADO SPRINGS. MODERATE RAIN AND PEA SIZED HAIL WAS REPORTED BY A SPOTTER. THIS STORM AND OTHERS ARE MOVING TOWARD THE NORTHEAST AT ONLY ABOUT 5 MPH. SHOWERS AND THUNDERSTORMS ARE EXPECTED TO CONTINUE IN THE PIKES PEAK REGION THE REST OF THE AFTERNOON AND INTO THIS EVENING. THE MOVEMENT WILL TAKE THE STORMS INTO ELBERT COUNTY WITHIN THE NEXT HOUR OR SO. SOME MINOR ROADWAY AND SMALL STREAM FLOODING MAY OCCUR WITH HEAVIER SHOWERS. FREQUENT LIGHTNING WILL ACCOMPANY THESE STORMS AND LIGHTNING SAFETY RULES SHOULD BE OBSERVED. CONTINUE TO LISTEN TO THIS NATIONAL WEATHER SERVICE RADIO STATION OR LOCAL RADIO AND TV STATIONS FOR THE LATEST INFORMATION CONCERNING THESE STORMS. MOORE
Special weather statement, May 20, 6:17 PM MDT, 34 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE PUEBLO CO 615 PM MDT WED MAY 20 1987 ...EXTREMELY HEAVY THUNDERSTORM IN NORTHERN PUEBLO COUNTY... AT 610 PM MDT AN EXTREMELY HEAVY THUNDERSTORMS HAD DEVELOPED IN NORTHERN PUEBLO COUNTY FROM THE CITY OF PUEBLO TO THE NORTHEAST BORDER. RAIN BEGAN AT PUEBLO MEMORIAL AIRPORT JUST AFTER 6PM THIS EVENING AND PEA TO MARBLE SIZE HAIL WAS REPORTED BY A RADIO STATION IN DOWNTOWN PUEBLO. THE STORMS WERE MOVING SLOWLY EAST 5 MILES AN HOUR. PEOPLE IN THE CITY OF PUEBLO AND IN NORTHERN PUEBLO COUNTY SHOULD MOVE INDOORS IN ORDER AVOID BEING OUTSIDE IN THIS STORM. VERY HEAVY RAIN...HAIL AND STRONG GUSTY WINDS CAN BE EXPECTED UNTIL AROUND 7 PM. STAY TUNED TO RADIO...TV OR NOAA WEATHER RADIO FOR LATER STATEMENTS WHICH WILL BE ISSUED ON THE STORMS IN PUEBLO COUNTY. GRAY
The office that day
Everything else NWS Pueblo, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 20, 8:32 PM MDT | Severe Thunderstorm Warning | PUB | Otero | 58 min |
| May 20, 9:34 PM MDT | Severe Thunderstorm Warning | PUB | Bent | 41 min |
Nearby
Severe Thunderstorm Warnings in Colorado, 1987Every severe thunderstorm warning in 1987
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.