Alert archive / Arizona / Severe Thunderstorm Warnings in 1996
Severe Thunderstorm Warning 21, NWS Flagstaff, AZ
NWS Flagstaff, AZ issued this severe thunderstorm warning at Jul 10, 1996, 4:02 PM MST for Gila County, Arizona. It was in force for 58 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
- Jul 10, 1996, 4:02 PM MST (23:02 UTC)
- Expired
- Jul 10, 1996, 5:00 PM MST
- In force
- 58 min
- Issued by
- NWS Flagstaff, AZ
- Area
- Whole counties
County Gila County, AZ
The nearest sounding before it
Tuscon, AZ (KTUS), launched 12:00Z, 11.0 hours before the alert went out and 181 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 0 m above ground
- 0-6 km bulk shear
- 10 kt
- 0-1 km storm-relative helicity
- -26 m²/s²
- 0-3 km storm-relative helicity
- -5 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
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 Flagstaff, AZ wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 10, 1:55 PM MST, 2 hours 7 minutes earlier.
Area forecast discussion, Jul 10, 1:55 PM MST, 2 hours 7 minutes before
NORTHERN ARIZONA FORECAST DISCUSSION NATIONAL WEATHER SERVICE FLAGSTAFF AZ 200 PM MST WED JUL 10 1996 DEFORMATION ZONE CONTINUES ACROSS NORTHERN ARIZONA THIS AFTERNOON PRODUCING SLOW MOVING HEAVY RAINERS. PW OF 1.2 INCHES IN THE MODELS OVER THE AREA CORRESPONDING MORE WITH HALF HOUR RAINFALL IN SOME PLACES RATHER THAN ONE HOUR. THETA-E AXIS ON EAST SIDE OF DEFORMATION ZONE WITH PW AXIS ON THE WEST SIDE...AND CENTRAL ARIZONA IN THE MIDDLE. ALREADY ONE FFW ISSUED FOR SOUTHERN COCONINO...POSSIBILITY OF MORE LATER. CONCENTRATING MORE ON FIRST PERIOD FOR ZONES...SO WILL PROBABLY KEEP OTHER PERIODS A GENERAL MONSOON FORECAST WITH EMPHASIS ON HEAVY RAIN TOMORROW SAME AREAS TODAY. SIGLER
In the hours before
Special weather statement, Jul 10, 11:44 AM MST, 4 hours 18 minutes before
AZZ007-012>014-102300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE FLAGSTAFF AZ 1145 PM MST WED JUL 10 1996 ...STRONG THUNDERSTORMS WITH LOCALLY HEAVY RAIN AND SMALL HAIL OVER CENTRAL ARIZONA TODAY... NATIONAL WEATHER SERVICE DOPPLER RADAR HAS BEEN INDICATING SCATTERED STRONG THUNDERSTORMS DEVELOPING OVER MUCH OF CENTRAL ARIZONA SINCE ABOUT 10:00 AM MST. SOME OF THESE STORMS HAVE PRODUCED LOCALLY VERY HEAVY RAINFALL AND SMALL HAIL. AT 11:20 AM...THE WEATHER SERVICE OFFICE IN BELLEMONT RECEIVED VERY HEAVY RAIN AND 1/4 INCH DIAMETER HAIL COVERING THE GROUND. RADAR ESTIMATES OF OVER ONE AND A HALF INCHES OF PRECIPITATION IN AN HOUR WERE INDICATED JUST NORTHEAST OF FLAGSTAFF NEAR WINONA...AND OVER AN INCH OF PRECIPITATION JUST SOUTH OF THE FLAGSTAFF AIRPORT...AND NEAR BELLEMONT WEST OF FLAGSTAFF ON I- 40. AT 11:30 AM MST...DOPPLER RADAR INDICATED THE STRONGEST STORMS WERE IN THE VICINITY OF FLAGSTAFF...MAINLY JUST SOUTH AND WEST OF TOWN...AS WELL AS EXTREME SOUTHEASTERN COCONINO COUNTY ALONG THE MOGOLLON RIM NEAR HAPPY JACK AND THE BLUE RIDGE RESERVOIR. OTHER STORMS WERE BEGINNING TO DEVELOP IN PARTS OF YAVAPAI COUNTY NEAR PRESCOTT AND SOUTH OF CAMP VERDE...AS WELL AS IN THE WHITE MOUNTAINS OF EAST-CENTRAL ARIZONA. MOTORISTS AND PEOPLE OUTDOORS IN CENTRAL ARIZONA TODAY SHOULD BE PREPARED FOR LOCALLY HEAVY RAINFALL...CAUSING MINOR STREET FLOODING AND REDUCED VISIBILITIES ON ROADWAYS...AS WELL AS RAPID RISEHS IN SMALL STREAM BEDS AND WASHES. DEADLY LIGHTNING AND SMALL HAIL WILL ALSO ACCOMPANY MANY OF THESE STORMS. TAKE COVER IF YOU ARE OUTDOORS AND A THUNDERSTORM IS APPROACHING. KEIGHTON
The office that day
Everything else NWS Flagstaff, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 10, 1:20 PM MST | Flash Flood Warning | FGZ | Coconino | 55 min |
| Jul 10, 4:02 PM MST | Flash Flood Warning | FGZ | Gila | 58 min |
Nearby
Severe Thunderstorm Warnings in Arizona, 1996Every severe thunderstorm warning 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; the sounding from the Mesonet's radiosonde archive.