Alert archive / Arizona / Severe Thunderstorm Warnings in 1994
Severe Thunderstorm Warning 39, NWS Phoenix, AZ
NWS Phoenix, AZ issued this severe thunderstorm warning at Aug 16, 1994, 5:00 PM MST for Maricopa County, Arizona. It was in force for 55 min.
The area
The counties it named.
The facts
- Issued
- Aug 16, 1994, 5:00 PM MST (00:00 UTC)
- Expired
- Aug 16, 1994, 5:55 PM MST
- In force
- 55 min
- Issued by
- NWS Phoenix, AZ
- Area
- Whole counties
County Maricopa County, AZ
The nearest sounding before it
Tuscon, AZ (KTUS), launched 00:00Z, 0.0 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
- 994 J/kg
- Mixed-layer CIN
- -3 J/kg
- Mixed-layer LCL
- 2599 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- -4 m²/s²
- 0-3 km storm-relative helicity
- 12 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KPHX 170000 RRA
SVRPHX
AZC013-025-170055-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PHOENIX AZ
500 PM MST TUE AUG 16 1994
THE NATIONAL WEATHER SERVICE IN PHOENIX AZ HAS ISSUED A SEVERE
THUNDERSTORM WARNING EFFECTIVE UNTIL 555 PM MST FOR PEOPLE IN THE
FOLLOWING LOCATIONS...
IN CENTRAL ARIZONA
...SOUTHEASTERN YAVAPAI COUNTY AND EXTREME NORTHEAST MARICOPA COUNTY
INCLUDING LAKE PLEASANT, CASTLE HOT SPRINGS, NEW RIVER AND BLACK
CANYON CITY
AT 455 PM MST, PHOENIX DOPPLER CONTINUED TO DETECT SEVERE THUNDERSTORMS
IN SOUTHEAST YAVAPAI COUNTY. THESE THUNDERSTORMS WERE MOVING TO THE
SOUTHWEST AT 10 MPH. THESE WILL AFFECT MOTORISTS TRAVELING ALONG
INTERSTATE 17 BETWEEN NEW RIVER AND BLACK CANYON CITY BETWEEN 5
AND 6 PM MST.
SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS IN EXCESS OF 57 MPH,
DESTRUCTIVE HAIL, DEADLY LIGHTNING, AND VERY HEAVY RAIN. BOATERS
ON LAKE PLEASANT SHOULD TAKE PRECAUTI ON FROM THESE STORMS.
OKULSKIWhat 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, Aug 16, 1:08 PM MST, 3 hours 52 minutes before
AZZ004-005-006-162200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE PHOENIX AZ 108 PM MST TUE AUG 16 1994 ...STRONG THUNDERSTORMS DEVELOPING RAPIDLY ALONG THE MOGOLLON RIM AND WHITE MOUNTAINS... AT 1245 PM MST, PHOENIX DOPPLER RADAR INDICATED STRONG THUNDERSTORMS ALONG THE MOGOLLON RIM AND WHITE MOUNTAINS. RADAR INDICATED THE STORMS WERE CAPABLE OF PRODUCING STRONG, GUSTY WINDS TO NEAR 40 MPH, LOCALIZED HEAVY RAINFALL BETWEEN ONE-HALF AND ONE INCH AN HOUR, SMALL HAIL, AND FREQUENT LIGHTNING. THE STRONGEST STORMS WERE LOCATED IN THE FLAGSTAFF AREA, FAR NORTHWEST GREENLEE COUNTY, EXTREME NORTHEAST GRAHAM COUNTY, AND ABOUT 5 MILES NORTHEAST OF YOUNG IN GILA COUNTY. A THUNDERSTORM THAT MOVED THROUGH PULLIAM FIELD AT FLAGSTAFF, JUST BEFORE 1 PM MST, INUNDATED THE AIRPORT WITH NEARLY 6 TENTHS /.56/ OF AN INCH OF RAIN IN A SHORT TIME. THE STORM ALSO PRODUCED SMALL HAIL. THE THUNDERSTORMS WERE MOVING SOUTHWEST AT 15 MPH, AND WILL ENTER YAVAPAI, AND MOVE ACROSS GILA AND GRAHAM COUNTIES DURING THE NEXT COUPLE OF HOURS. THUNDERSTORMS ARE EXPECTED TO CONTINUE TO DEVELOP AS THEY MOVE FROM ARIZONAS NORTHERN HIGH COUNTRY TO THE SOUTH-CENTRAL AND SOUTHWEST DESERTS LATER THIS AFTERNOON AND EVENING. THE DESERT THUNDERSTORMS ARE FORECAST TO CAUSE STRONG, GUSTY WINDS, DUST STORMS, LOCALLY HEAVY RAINFALL AND LOTS OF LIGHTNING. FRANJEVIC
Special weather statement, Aug 16, 1:29 PM MST, 3 hours 31 minutes before
AZZ004-005-006-162230- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE PHOENIX AZ 130 PM MST TUE AUG 16 1994 ...STRONG THUNDERSTORMS CONTINUE ALONG THE MOGOLLON RIM AND WHITE MOUNTAINS... AT 125 PM MST, PHOENIX DOPPLER RADAR INDICATED A FEW STRONG THUNDERSTORMS ALONG THE MOGOLLON RIM AND IN THE WHITE MOUNTAINS. THE STORMS WERE LOCATED OVER AND JUST WEST OF THE FLAGSTAFF AREA, OVER FAR NORTHWEST GILA COUNTY NEAR THE PAYSON AREA, AND IN EXTREME NORTHEAST GRAHAM COUNTY. THE STORMS WERE MOVING SOUTHWEST AT 15 MPH, AND WILL MOVE INTO NORTHERN YAVAPAI COUNTY, ACROSS NORTHWEST GILA COUNTY INCLUDING THE PAYSON AREA, AND NORTHERN GRAHAM COUNTY DURING THE NEXT COUPLE OF HOURS. PERSONS IN FAR SOUTHERN COCONINO, NORTHERN YAVAPAI, MORTHWEST GILA, AND NORTHERN GRAHAM COUNTY ARE URGED TO BE ON THE ALERT FOR THESE THUNDERSTORMS. THE STORMS ARE CAPABLE OF PRODUCING STRONG, GUSTY WINDS TO NEAR 40 MPH, LOCALIZED HEAVY RAINFALL BETWEEN ONE-HALFF AND ONE INCH, SMALL HAIL, AND FREQUENT LIGHTING. DOPPLER RADAR INDICATES THAT THE PAYSON AREA WILL RECEIVE THE BRUNT OF ONE OF THE STRONG THUNDERSTORMS DURING THE NEXT HOUR. FRANJEVIC
Special weather statement, Aug 16, 1:30 PM MST, 3 hours 30 minutes before
AZZ004-005-006-162230- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE PHOENIX AZ 130 PM MST TUE AUG 16 1994 ...STRONG THUNDERSTORMS CONTINUE ALONG THE MOGOLLON RIM AND WHITE MOUNTAINS... AT 125 PM MST, PHOENIX DOPPLER RADAR INDICATED A FEW STRONG THUNDERSTORMS ALONG THE MOGOLLON RIM AND IN THE WHITE MOUNTAINS. THE STORMS WERE LOCATED OVER AND JUST WEST OF THE FLAGSTAFF AREA, OVER FAR NORTHWEST GILA COUNTY NEAR THE PAYSON AREA, AND IN EXTREME NORTHEAST GRAHAM COUNTY. THE STORMS WERE MOVING SOUTHWEST AT 15 MPH, AND WILL MOVE INTO NORTHERN YAVAPAI COUNTY, ACROSS NORTHWEST GILA COUNTY INCLUDING THE PAYSON AREA, AND NORTHERN GRAHAM COUNTY DURING THE NEXT COUPLE OF HOURS. PERSONS IN FAR SOUTHERN COCONINO, NORTHERN YAVAPAI, MORTHWEST GILA, AND NORTHERN GRAHAM COUNTY ARE URGED TO BE ON THE ALERT FOR THESE THUNDERSTORMS. THE STORMS ARE CAPABLE OF PRODUCING STRONG, GUSTY WINDS TO NEAR 40 MPH, LOCALIZED HEAVY RAINFALL BETWEEN ONE-HALF AND ONE INCH, SMALL HAIL, AND FREQUENT LIGHTING. DOPPLER RADAR INDICATES THAT THE PAYSON AREA WILL RECEIVE THE BRUNT OF ONE OF THE STRONG THUNDERSTORMS DURING THE NEXT HOUR. FRANJEVIC WWUS35KAUS .Q%
Special weather statement, Aug 16, 2:50 PM MST, 2 hours 10 minutes before
AZZ004-005-162330- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE PHOENIX AZ 250 PM MST TUE AUG 16 1994 ...STRONG THUNDERSTORMS ACROSS THE CENTRAL BASINS AND MOGOLLON RIM... AT 245 PM MST, PHOENIX DOPPLER RADAR DETECTED STRONG THUNDERSTORMS ACROSS THE CENTRAL BASINS AND MOGOLLON RIM. THE STRONGEST THUNDERSTORMS WERE LOCATED ABOUT 10 MILES EAST OF PAYSON, AND 15 MILES EAST AND SOUTHWEST OF PRESCOTT. THESE THUNDERSTORMS WERE MOVING SLOWLY SOUTH TO SOUTHWEST AT LESS THAN 10 MPH. RADAR DERIVED RAINFALL ESTIMATES INDICATED THAT OVER 1.5 INCHES HAD FALLEN IN THE VICINITY OF GROOM CREEK, ABOUT 10 MILES SOUTHEAST OF PRESCOTT. THE THUNDERSTORM EAST OF PAYSON HAS PRODUCED OVER ONE INCH OF RAINFALL BETWEEN 150 AND 250 PM MST. THUNDERSTORM ACTIVITY WILL CONTINUE IN NORTH CENTRAL ARIZONA DURING THIS AFTERNOON AND EARLY EVENING. RADAR INDICATED THAT THESE THUNDERSTORMS WERE CAPABLE OF PRODUCING STRONG, GUSTY WINDS AND LOCALLY HEAVY RAIN. MOTORISTS TRAVELING ALONG STATE HIGHWAYS 89 AND 69 IN PRESCOTT AREA, THE BEELINE HIGHWAY NEAR PAYSON, AND INTERSTATE 17 BETWEEN CORDES JUNCTION AND CAMP VERDE NEED TO EXERCISE CAUTION DUE TO PONDING OF WATER AND FLOODED DIPS ON HIGHWAYS. OKULSKI
Special weather statement, Aug 16, 2:51 PM MST, 2 hours 9 minutes before
AZZ004-005-162330- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE PHOENIX AZ 250 PM MST TUE AUG 16 1994 ...STRONG THUNDERSTORMS ACROSS THE CENTRAL BASINS AND MOGOLLON RIM... AT 245 PM MST, PHOENIX DOPPLER RADAR DETECTED STRONG THUNDERSTORMS ACROSS THE CENTRAL BASINS AND MOGOLLON RIM. THE STRONGEST THUNDERSTORMS WERE LOCATED ABOUT 10 MILES EAST OF PAYSON, AND 15 MILES EAST AND SOUTHWEST OF PRESCOTT. THESE THUNDERSTORMS WERE MOVING SLOWLY SOUTH TO SOUTHWEST AT LESS THAN 10 MPH. RADAR DERIVED RAINFALL ESTIMATES INDICATED THAT OVER 1.5 INCHES HAD FALLEN IN THE VICINITY OF GROOM CREEK, ABOUT 10 MILES SOUTHEAST OF PRESCOTT. THE THUNDERSTORM EAST OF PAYSON HAS PRODUCED OVER ONE INCH OF RAINFALL BETWEEN 150 AND 250 PM MST. THUNDERSTORM ACTIVITY WILL CONTINUE IN NORTH CENTRAL ARIZONA DURING THIS AFTERNOON AND EARLY EVENING. RADAR INDICATED THAT THESE THUNDERSTORMS WERE CAPABLE OF PRODUCING STRONG, GUSTY WINDS AND LOCALLY HEAVY RAIN. MOTORISTS TRAVELING ALONG STATE HIGHWAYS 89 AND 69 IN PRESCOTT AREA, THE BEELINE HIGHWAY NEAR PAYSON, AND INTERSTATE 17 BETWEEN CORDES JUNCTION AND CAMP VERDE NEED TO EXERCISE CAUTION DUE TO PONDING OF WATER AND FLOODED DIPS ON HIGHWAYS. OKULSKI
Special weather statement, Aug 16, 3:52 PM MST, 1 hour 8 minutes before
AZZ004-170030- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE PHOENIX AZ 352 PM MST TUE AUG 16 1994 ...SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR PARTS OF CENTRAL AND SOUTHERN ARIZONA FROM 4 PM TO 10 PM MST... ...STRONG THUNDERSTORMS RUMBLING ACROSS WESTERN GILA AND YAVAPAI COUNTIES... AT 350 PM MST, PHOENIX DOPPLER RADAR INDICATED STRONG THUNDERSTORMS ACROSS WESTERN GILA AND YAVAPAI COUNTIES. THE STRONGEST THUNDERSTORMS WERE LOCATED BETWEEN STRAWBERRY AND PUNKIN CENTER JUST TO WEST OF STATE HIGHWAY 87, AND IN THE VICINITY OF CROWN KING. THESE THUNDERSTORMS WERE MOVING SLOWLY TO THE SOUTHWEST AT LESS THAN 10 MPH. RADAR INDICATED THAT THESE THUNDERSTORMS WERE CAPABLE OF PRODUCING STRONG, GUSTY WINDS TO NEAR 40 MPH, SMALL HAIL AND LOCALLY HEAVY RAINFALL. OKULSKI
The office that day
Everything else NWS Phoenix, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 16, 5:00 PM MST | Severe Thunderstorm Warning | PSR | Yavapai | 55 min |
| Aug 16, 5:30 PM MST | Severe Thunderstorm Warning | PSR | Gila, Pinal | 55 min |
| Aug 16, 5:40 PM MST | Severe Thunderstorm Warning | PSR | Maricopa | 60 min |
| Aug 16, 6:25 PM MST | Severe Thunderstorm Warning | PSR | Gila, Pinal | 60 min |
| Aug 16, 7:30 PM MST | Severe Thunderstorm Warning | PSR | Pinal | 60 min |
Nearby
Severe Thunderstorm Warnings in Arizona, 1994Every severe thunderstorm warning in 1994
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.