Alert archive / Arizona / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 3, NWS Phoenix, AZ
NWS Phoenix, AZ issued this severe thunderstorm warning at Jan 25, 2021, 1:50 PM MST for Maricopa County, Arizona. It was in force for 25 min. 13 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Jan 25, 2021, 1:50 PM MST (20:50 UTC)
- Expired
- Jan 25, 2021, 2:15 PM MST
- In force
- 25 min
- Issued by
- NWS Phoenix, AZ
- Area
- Storm-based polygon
- Tornado
- Possible
- Hail
- 0.75 in
- Wind
- 60.0 mph
County Maricopa County, AZ
The radar
The Phoenix radar (KIWA), 52 km from the middle of the area, began a volume at 20:48 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
| Time | Report | Where | Remark |
|---|---|---|---|
| Jan 25, 1:50 PM MST | TSTM WND DMG | 2 Nnw Paradise Valley, AZ | DELAYED REPORT. TRAINED SPOTTER REPORTED THAT A 50 FOOT TREE WITH A 2 FOOT DIAMETER BLEW DOWN IN PARADISE VALLEY NEAR THE INTERSECTION OF DOUBLETREE ROAD AND TATUM. |
| Jan 25, 1:50 PM MST | TSTM WND DMG | 7 Ne Glendale, AZ | CORRECTS PREVIOUS TSTM WND DMG REPORT TIMING FROM 7 NE GLENDALE. DELAYED REPORT. FOLLOWER ON TWITTER REPORTED THAT LARGE STEEL POLE POWER LINES WERE DOWN NEAR 3040 W MORROW DRIVE. |
| Jan 25, 1:51 PM MST | TSTM WND DMG | 5 N Phoenix, AZ | DELAYED REPORT...UP TO 10 TREES TOPPLED, UP TO 7-8 IN. TRUNKS, NEAR 19TH AVE., UNION HILLS, I-17 AND LOOP 101. LESS THAN ONE QUARTER IN. HAIL. TSTM WIND GUSTS ESTIMATED NEAR 45-55 MPH. |
| Jan 25, 1:53 PM MST | TSTM WND DMG | 9 E Peoria, AZ | CORRECTS PREVIOUS TSTM WND DMG REPORT TIMING FROM 9 E PEORIA. DELAYED REPORT. FOLLOWER ON TWITTER REPORTED A LOT OF DEBRIS AND TREES DOWN NEAR 15TH AVE AND ROSEGARDEN. |
| Jan 25, 1:54 PM MST | HAIL 0.25 | 8 Ene Peoria, AZ | DELAYED REPORT. TRAINED SPOTTER REPORTED HAIL ACCUMULATION. |
| Jan 25, 1:55 PM MST | TSTM WND DMG | 3 Ssw Phoenix, AZ | STORM KNOCKED DOWN TWO LARGE TREES INTO AN APARTMENT UNIT AT 15TH AVE AND CAMELBACK AVE. |
| Jan 25, 1:55 PM MST | TSTM WND DMG | 5 Nne Phoenix, AZ | ROOF DAMAGE. ROOF BLOWN OFF OF SHED. |
| Jan 25, 1:58 PM MST | TSTM WND DMG | 5 N Phoenix, AZ | DELAYED REPORT...SEVERAL POWER POLES DOWN, INCLUDING METAL, NEAR 35TH AVE. AND UNION HILLS SOUTHWEST OF I-17 AND LOOP 101. |
| Jan 25, 2:00 PM MST | TSTM WND DMG | 3 Sse Phoenix, AZ | DELAYED REPORT. TREE DOWN INTO APARTMENT COMPLEX...NEARLY HIT A RESIDENT IN AN 2ND FLOOR APARTMENT. |
| Jan 25, 2:00 PM MST | TSTM WND DMG | 7 Ne Glendale, AZ | DELAYED REPORT. BROADCAST MEDIA REPORTED 9 POWER POLES DOWN NEAR 31ST AVE AND UNION HILLS. |
| Jan 25, 2:00 PM MST | TSTM WND DMG | 8 Ne Glendale, AZ | DELAYED REPORT. FOLLOWER ON TWITTER REPORTED LARGE TREE DOWN NEAR 19TH AVE AND UNION HILLS. |
| Jan 25, 2:02 PM MST | TSTM WND DMG | 2 Ne Paradise Valley, AZ | LARGE TREES DOWN ON EASTWOOD IN MCCORMICK RANCH, JUST EAST OF SCOTTSDALE ROAD. |
| Jan 25, 2:10 PM MST | HAIL 0.25 | 5 Wsw Paradise Valley, AZ | DELAYED REPORT. FOLLOWER ON TWITTER REPORTED A SIGNIFICANT AMOUNT OF HAIL ACCUMULATION ON 24TH ST AND CAMELBACK. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Flgstf/Belemont, AZ (KFGZ), launched 12:00Z, 8.8 hours before the alert went out and 170 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
- 613 m above ground
- 0-6 km bulk shear
- 0 kt
- 0-1 km storm-relative helicity
- 0 m²/s²
- 0-3 km storm-relative helicity
- 0 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
078
WUUS55 KPSR 252050
SVRPSR
AZC013-252115-
/O.NEW.KPSR.SV.W.0003.210125T2050Z-210125T2115Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Phoenix AZ
150 PM MST Mon Jan 25 2021
The National Weather Service in Phoenix has issued a
* Severe Thunderstorm Warning for...
Maricopa County in south central Arizona...
* Until 215 PM MST.
* At 150 PM MST, severe thunderstorms were located along a line
extending from near Deer Valley Airport to near Desert Ridge
Marketplace to near North Mountain Park to Arizona State
Fairgrounds, moving northeast at 60 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
Phoenix, Glendale, Scottsdale, Fountain Hills, Paradise Valley,
Laveen, Cave Creek, Carefree, Piestewa Peak Park, Deer Valley
Airport, McDowell Mountain Park, North Mountain Park, Arizona State
Fairgrounds, Downtown Phoenix and Downtown Scottsdale.
* This includes the following highways...
AZ Interstate 10 between mile markers 140 and 148, and near mile
marker 149.
AZ Interstate 17 between mile markers 196 and 220.
AZ Route 51 between mile markers 1 and 15.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3394 11179 3390 11168 3384 11159 3360 11166
3336 11221 3349 11216 3360 11214 3370 11221
TIME...MOT...LOC 2050Z 236DEG 51KT 3368 11214 3364 11206 3360 11202
3345 11210
TORNADO...POSSIBLE
HAIL...<.75IN
WIND...60MPH
$$
182 follow-up statements
594
WWUS55 KPSR 252104
SVSPSR
Severe Weather Statement
National Weather Service Phoenix AZ
204 PM MST Mon Jan 25 2021
AZC013-252115-
/O.CON.KPSR.SV.W.0003.000000T0000Z-210125T2115Z/
Maricopa AZ-
204 PM MST Mon Jan 25 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 215 PM MST
FOR MARICOPA COUNTY...
At 204 PM MST, severe thunderstorms were located along a line
extending from near Cave Creek to Desert Ridge Marketplace to near
Scottsdale Airport to Papago Park, moving northeast at 50 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Phoenix, Scottsdale, Fountain Hills, Paradise Valley, Laveen, Cave
Creek, Carefree, Piestewa Peak Park, Deer Valley Airport, McDowell
Mountain Park, North Mountain Park, Arizona State Fairgrounds,
Downtown Phoenix, Downtown Scottsdale and Desert Mountain.
This includes the following highways...
AZ Interstate 10 between mile markers 140 and 148, and near mile
marker 149.
AZ Interstate 17 between mile markers 196 and 208.
AZ Route 51 between mile markers 1 and 15.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3394 11179 3390 11168 3384 11159 3360 11166
3336 11221 3349 11216 3351 11216 3363 11208
3376 11209
TIME...MOT...LOC 2104Z 237DEG 44KT 3376 11201 3370 11196 3365 11191
3345 11198
TORNADO...POSSIBLE
HAIL...<.75IN
WIND...60MPH
$$
18677
WWUS55 KPSR 252112
SVSPSR
Severe Weather Statement
National Weather Service Phoenix AZ
212 PM MST Mon Jan 25 2021
AZC013-252122-
/O.EXP.KPSR.SV.W.0003.000000T0000Z-210125T2115Z/
Maricopa AZ-
212 PM MST Mon Jan 25 2021
...THE SEVERE THUNDERSTORM WARNING FOR MARICOPA COUNTY WILL EXPIRE AT
215 PM MST...
The storms which prompted the warning have moved out of the area.
Therefore, the warning will be allowed to expire. However gusty
winds are still possible.
LAT...LON 3394 11179 3390 11168 3384 11159 3360 11166
3336 11221 3349 11216 3351 11216 3363 11208
3376 11209
TIME...MOT...LOC 2112Z 236DEG 51KT 3381 11192 3375 11187 3370 11182
3350 11189
$$
18The office that day
Everything else NWS Phoenix, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 24, 5:59 PM MST | Special Weather Statement | PSR | 31 min | |
| Jan 25, 10:16 AM MST | Special Weather Statement | PSR | Yuma | 44 min |
| Jan 25, 11:01 AM MST | Special Weather Statement | PSR | Yuma | 44 min |
| Jan 25, 11:19 AM MST | Special Weather Statement | PSR | La Paz | 41 min |
| Jan 25, 11:53 AM MST | Special Weather Statement | PSR | Yuma | 52 min |
| Jan 25, 12:22 PM MST | Special Weather Statement | PSR | Maricopa | 53 min |
| Jan 25, 12:40 PM MST | Freeze Watch | PSR | Maricopa | 14 hr |
| Jan 25, 12:40 PM MST | Hard Freeze Watch | PSR | Gila, Pinal | 14 hr |
| Jan 25, 1:06 PM MST | Special Weather Statement | PSR | Maricopa | 39 min |
| Jan 25, 1:08 PM MST | Special Weather Statement | PSR | Maricopa | 52 min |
| Jan 25, 1:28 PM MST | Severe Thunderstorm Warning | PSR | Maricopa | 32 min |
| Jan 25, 1:36 PM MST | Severe Thunderstorm Warning | PSR | Maricopa | 24 min |
| Jan 25, 1:47 PM MST | Special Weather Statement | PSR | 43 min | |
| Jan 25, 1:53 PM MST | Special Weather Statement | PSR | Maricopa | 52 min |
| Jan 25, 2:11 PM MST | Special Weather Statement | PSR | 34 min | |
| Jan 25, 2:40 PM MST | Special Weather Statement | PSR | Pinal | 50 min |
| Jan 25, 2:46 PM MST | Special Weather Statement | PSR | Gila | 14 min |
Nearby
Severe Thunderstorm Warnings in Arizona, 2021Every severe thunderstorm warning in 2021
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.