Alert archive / Arizona / Severe Thunderstorm Warnings in 1995
Severe Thunderstorm Warning 4, NWS Phoenix, AZ
NWS Phoenix, AZ issued this severe thunderstorm warning at Feb 21, 1995, 5:37 PM MST for Maricopa County, Arizona. It was in force for 33 min.
The area
The counties it named.
The facts
- Issued
- Feb 21, 1995, 5:37 PM MST (00:37 UTC)
- Expired
- Feb 21, 1995, 6:10 PM MST
- In force
- 33 min
- Issued by
- NWS Phoenix, AZ
- Area
- Whole counties
County Maricopa County, AZ
The radar
The Phoenix radar (KIWA), 77 km from the middle of the area, began a volume at 00:35 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
Tuscon, AZ (KTUS), launched 00:00Z, 0.6 hours before the alert went out and 198 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
- 189 J/kg
- Mixed-layer CIN
- -83 J/kg
- Mixed-layer LCL
- 1198 m above ground
- 0-6 km bulk shear
- 44 kt
- 0-1 km storm-relative helicity
- -35 m²/s²
- 0-3 km storm-relative helicity
- 50 m²/s²
- Significant tornado parameter
- -0.0
- Supercell composite
- -0.5
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KPHX 220042 RRA SVRPHX AZC013-220110- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE PHOENIX AZ 537 PM MST TUE FEB 21 1995 THE NATIONAL WEATHER SERVICE IN PHOENIX AZ HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 610 PM MST FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN SOUTH-CENTRAL ARIZONA ...EASTERN MARICOPA COUNTY...FOR THE AREA AROUND FOUNTAIN HILLS AT 538 PM DOPPLER RADAR DETECTED VERY STRONG POSSIBLY SEVERE THUNDERSTORMS APPROACHING FOUNTAIN HILLS FROM THE SOUTHEAST. THESE STORMS HAVE A HISTORY OF PRODUCING HAIL AND INTENSE RAIN. THE SEVERE THUNDERSTORM WARNING FOR FOUNTAIN HILLS IS IN EFFECT UNTIL 610 PM. SEVERE THUNDERSTORMS PRODUCE D8AMAGING WINDS IN EXCESS OF 57 MPH, DESTRUCTIVE HAIL, DEADLY LIGHTNING, AND VERY HEAVY RAIN. SEEK SHELTER IN A STRONG BUILDING AND BUT STAY AWAY FROM WINDOWS. VASQUEZ
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, Feb 21, 1:09 PM MST, 4 hours 28 minutes before
AZZ007-008-212200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE PHOENIX AZ 109 PM MST TUE FEB 21 1995 ...SCATTERED THUNDERSTORMS DEVELOPING ALONG A LINE FROM PARKER TO GILA BEND AT 1 PM... A NORTHWEST-SOUTHEAST LINE OF THUNDERSTORMS WAS DEVELOPING IN WESTERN ARIZONA FROM PARKER TO GILA BEND. A FEW OF THESE STORMS WERE STRONG AND MOVING TO THE NORTHWEST AT NEARLY 30 MPH. A SECOND AREA OF THUNDERSTORMS WAS DEVELOPING NEAR TUCSON AT 1 PM. THE GREATEST THREAT WITH THESE STORMS ARE GUSTY WINDS. THUNDERSTORM WINDS COULD PEAK TO NEAR 50 MPH ALONG WITH DENSE BLOWING DUST ON THE DESERTS. THUNDERSTORMS WILL CONTINUE TO DEVELOP THROUGHOUT THE AFTERNOON AND EXTEND TO OTHER PARTS OF THE STATE. RESIDENTS AND MOTORISTS SHOULD MONITOR THE AREA FOR APPROACHING WEATHER AND PREPARE FOR GUSTY WINDS. VASQUEZ
Special weather statement, Feb 21, 1:20 PM MST, 4 hours 17 minutes before
AZZ007-008-212200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE PHOENIX AZ 109 PM MST TUE FEB 21 1995 ...SCATTERED THUNDERSTORMS DEVELOPING ALONG A LINE FROM PARKER TO GILA BEND AT 1 PM... A NORTHWEST-SOUTHEAST LINE OF THUNDERSTORMS WAS DEVELOPING IN WESTERN ARIZONA FROM PARKER TO GILA BEND. A FEW OF THESE STORMS WERE STRONG AND MOVING TO THE NORTHWEST AT NEARLY 30 MPH. A SECOND AREA OF THUNDERSTORMS WAS DEVELOPING NEAR TUCSON AT 1 PM. THE GREATEST THREAT WITH THESE STORMS ARE GUSTY WINDS. THUNDERSTORM WINDS COULD PEAK TO NEAR 50 MPH ALONG WITH DENSE BLOWING DUST ON THE DESERTS. THUNDERSTORMS WILL CONTINUE TO DEVELOP THROUGHOUT THE AFTERNOON AND EXTEND TO OTHER PARTS OF THE STATE. RESIDENTS AND MOTORISTS SHOULD MONITOR THE AREA FOR APPROACHING WEATHER AND PREPARE FOR GUSTY WINDS. VASQUEZ
Special weather statement, Feb 21, 3:00 PM MST, 2 hours 37 minutes before
AZZ008-009-220000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE PHOENIX AZ 300 PM MST TUE FEB 21 1995 ...STRONG THUNDERSTORMS DEVELOPING IN SOUTHEAST PINAL COUNTY BETWEEN FLORENCE AND ORACLE... AND IN WESTERN ARIZONA BETWEEN LAKE HAVASU AND BUCKEYE... STRONG THUNDERSTORMS CONTINUE TO DEVELOP OVER PORTIONS OF WESTERN AND SOUTHEAST ARIZONA. AT 245 PM WEATHER RADAR DETECTED NUMEROUS THUNDERSTORMS OVER THE CATALINA MOUNTAINS NEAR TUCSON EXTENDING NORTH TOWARD THE TOWN OF FLORENCE IN PINAL COUNTY. THESE STORMS WERE MOVING NORTH AT 25 MPH AND HAVE A HISTORY OF PRODUCING 1/2 INCH DIAMETER HAILSTONES...STRONG WINDS...AND HEAVY RAIN. TWO OF THE LARGEST STORMS AT 245 PM WERE LOCATED NEAR SAN MANUEL... AND 15 MILES NORTH OF ORACLE JUNCTION. ANOTHER AREA OF STRONG STORMS WAS LOCATED IN WESTERN ARIZONA BETWEEN THE TOWNS OF VICKSBURG AND INTERSTATE 10 NEAR TONOPAH. THESE STORMS WERE MOVING NORTHWEST AT 30 MPH. THUNDERSTORMS WILL CONTINUE TO DEVELOP THE REMAINDER OF THE AFTERNOON AND EVENING AND EXTEND TO OTHER AREAS OF THE STATE. RESIDENTS AND MOTORISTS SHOULD BE PREPARED FOR STRONG WINDS TO 50 MPH...BLOWING DUST...HAIL...AND HEAVY RAIN. VASQUEZ
Special weather statement, Feb 21, 3:10 PM MST, 2 hours 27 minutes before
AZZ008-009-220000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE PHOENIX AZ 300 PM MST TUE FEB 21 1995 ...STRONG THUNDERSTORMS DEVELOPING IN SOUTHEAST PINAL COUNTY BETWEEN FLORENCE AND ORACLE... AND IN WESTERN ARIZONA BETWEEN LAKE HAVASU AND BUCKEYE... STRONG THUNDERSTORMS CONTINUE TO DEVELOP OVER PORTIONS OF WESTERN AND SOUTHEAST ARIZONA. AT 245 PM WEATHER RADAR DETECTED NUMEROUS THUNDERSTORMS OVER THE CATALINA MOUNTAINS NEAR TUCSON EXTENDING NORTH TOWARD THE TOWN OF FLORENCE IN PINAL COUNTY. THESE STORMS WERE MOVING NORTH AT 25 MPH AND HAVE A HISTORY OF PRODUCING 1/2 INCH DIAMETER HAILSTONES...STRONG WINDS...AND HEAVY RAIN. TWO OF THE LARGEST STORMS AT 245 PM WERE LOCATED NEAR SAN MANUEL... AND 15 MILES NORTH OF ORACLE JUNCTION. ANOTHER AREA OF STRONG STORMS WAS LOCATED IN WESTERN ARIZONA BETWEEN THE TOWNS OF VICKSBURG AND INTERSTATE 10 NEAR TONOPAH. THESE STORMS WERE MOVING NORTHWEST AT 30 MPH. THUNDERSTORMS WILL CONTINUE TO DEVELOP THE REMAINDER OF THE AFTERNOON AND EVENING AND EXTEND TO OTHER AREAS OF THE STATE. RESIDENTS AND MOTORISTS SHOULD BE PREPARED FOR STRONG WINDS TO 50 MPH...BLOWING DUST...HAIL...AND HEAVY RAIN. VASQUEZ
Special weather statement, Feb 21, 4:36 PM MST, 1 hour 1 minute before
AZZ008-220130- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE PHOENIX AZ 436 PM MST TUE FEB 21 1995 ...THUNDERSTORMS...GUSTY WINDS...AND POSSIBLE BLOWING DUST MOVING INTO THE PHOENIX VALLEY FROM THE EAST AND SOUTHEAST THIS EVENING... A GUST FRONT WITH POSSIBLE BLOWING DUST...GENERATED FROM THUNDERSTORMS NEAR FLORENCE JUNCTION...WAS APPROACHING THE PHOENIX EAST VALLEY AT 430 PM. GUSTY WINDS TO 35 MPH WILL LIKELY SPREAD INTO PARTS OF PHOENIX FROM THE EAST THIS EVENING...INCLUDING THUNDERSTORM DEVELOPMENT. RESIDENTS AND MOTORISTS SHOULD BE PREPARED FOR GUSTY WINDS...BLOWING DUST...FREQUENT LIGHTNING WITH HEAVY RAIN. VASQUEZ
Special weather statement, Feb 21, 4:47 PM MST, 50 minutes before
AZZ008-220130- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE PHOENIX AZ 436 PM MST TUE FEB 21 1995 ...THUNDERSTORMS...GUSTY WINDS...AND POSSIBLE BLOWING DUST MOVING INTO THE PHOENIX VALLEY FROM THE EAST AND SOUTHEAST THIS EVENING... A GUST FRONT WITH POSSIBLE BLOWING DUST...GENERATED FROM THUNDERSTORMS NEAR FLORENCE JUNCTION...WAS APPROACHING THE PHOENIX EAST VALLEY AT 430 PM. GUSTY WINDS TO 35 MPH WILL LIKELY SPREAD INTO PARTS OF PHOENIX FROM THE EAST THIS EVENING...INCLUDING THUNDERSTORM DEVELOPMENT. RESIDENTS AND MOTORISTS SHOULD BE PREPARED FOR GUSTY WINDS...BLOWING DUST...FREQUENT LIGHTNING WITH HEAVY RAIN. VASQUEZ
The office that day
Everything else NWS Phoenix, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 21, 5:12 PM MST | Severe Thunderstorm Warning | PSR | Pinal | 48 min |
Nearby
Severe Thunderstorm Warnings in Arizona, 1995Every severe thunderstorm warning in 1995
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.